Translation mirror based beam steering mechanism with ultrahigh frequency response and high sensitivity

SOFT BIOMIMETIC LEGGED ROBOT

A soft biomimetic legged robot is provided in the present invention, including a plurality of soft robotic arms. The soft robotic arms include a plurality of motion units, and each of the motion units includes one or more of a twist module, an extension module, a contraction, and a bending module. The plurality of motion units is combined to achieve a full-posture motion of the soft robotic arms. By using soft robotic arms composed of different motion units, the soft biomimetic legged robot of the present invention can not only realize the underwater swimming and crawling, but the crawling on land or slopes, thereby adapting to more complicated environments and achieving richer functions. The motion posture is not limited to a single bending, twisting, extension, and shortening. The soft robotic arm can achieve full-posture movements, and its motion type is more complete. 1. A soft biomimetic legged robot , comprising:{'b': 1', '1', '11', '11', '16', '17', '18', '19, 'a plurality of soft robotic arms (), wherein the soft robotic arms () comprise a plurality of motion units (), and each of the motion units () comprises one or more of twist modules (), extension modules (), contraction modules (), and bending modules ();'}{'b': 11', '1, 'wherein the plurality of motion units () is combined to achieve a full-posture motion of the soft robotic arms ().'}216161163162163162163161161162161161. The soft biomimetic legged robot according to claim 1 , wherein the twist modules () comprise a first elastic substrate () claim 1 , a counter-clockwise twist actuator () claim 1 , and a clockwise twist actuator (); each of the counter-clockwise twist actuator () and the clockwise twist actuator () comprises a plurality of actuators; the counter-clockwise twist actuators () are symmetrically disposed on the first elastic substrate () in a left-handed manner along a central axis of the first elastic substrate () claim 1 , and the clockwise twist actuators () are symmetrically disposed ...

LAMINATION MANUFACTURING METHOD FOR LARGE-SIZE AND COMPLEX- STRUCTURE METAL COMPONENTS

A lamination manufacturing method for large-sized metal components with complicated structures is provided, relating to a part manufacturing method to solve the problem that traditional machining, entire plastic forming and the existing additive manufacturing method are difficult to manufacture large-sized metal components with complicated special-shape structure and high-performance requirement. The manufacturing method includes the steps: step 1. obtaining a three-dimensional digital model of a large-sized metal component with complicated structure, and dividing the model into a plurality of slice layers; step 2. selecting the actually available metal sheet corresponding to the thickness of each slice layer divided in step 1, and machining each metal sheet to obtain a shaped sheet consistent with the model of each slice layer in step 1; step 3. stacking the shaped sheets obtained through machining of step 2 according to the order of the corresponding slice layers in step 1; and step 4. obtaining a required large-sized metal component with complicated structure after all the shaped sheets are connected into a whole. The present invention is used for shaping large-sized components with complicated deep cavity and inner hole structures. 1. A lamination manufacturing method for large-sized metal components with complicated structures , the method being realized by the following steps:step 1. obtaining a three-dimensional digital model of a large-sized metal component with complicated structure, selecting a direction on the model according to service characteristics and the structural features of the large-sized metal component with complicated structure; dividing the model into a plurality of slice layers in a direction perpendicular to the selected direction, and selecting the thickness of each slice layer according to the features of the large-sized metal component with complicated structure and the thickness of an actually available metal sheet, at a level of ...

Method and Device for Protein-Protein Docking Based on Identification of Low-Entropy Hydration Layer on Protein Surface

Provided is a method and a device for protein-protein docking based on identification of a low-entropy hydration layer on a protein surface. Hydrophobic groups on a protein surface and hydrophobic groups containing a small amount of oxygen and nitrogen atoms, as well as some hydrophilic groups in intramolecular hydrogen bonds formed on the protein surface are identified as low-entropy areas. In a computer program, according to a low-entropy hydration layer theory on the protein surface, some nitrogen and oxygen hydrophilic atoms of the protein are changed into hydrophobic carbon atoms; the protein surface is cut into multiple planes, atoms in a hydrophobic connection region are selected in each plane, an area and a shape of surface atoms are calculated in each hydrophobic connection region, and a plane is selected with a maximum hydrophobic connection area; a protein-protein docking site is predicted using the connection region as a possible docking site.

Ultra-microinjection detection and control device based on lensless imaging and method thereof

The present invention provides an ultra-microinjection detection and control device based on lensless imaging and a method thereof. A lensless optical liquid level sensor is used to measure a change of a liquid level in an injection needle. A microinjection control unit is used to track the change of the liquid level and correct an injection pressure of the injection pump. Transmitted light generated by a parallel light source passes through a transparent glass tube of the injection needle. Then the transmitted light passes through a light filtering film to reduce the intensity of the parallel light source to a photosensitivity range of a micro linear array image sensor chip. Finally, the transmitted light enters the micro linear array image sensor chip, so that the micro linear array image sensor chip measures the change of the liquid level in the injection needle.

Device and method for forming metal plate by using high-energy electric pulse to drive energetic materials

The present disclosure discloses a device and a method for forming a metal plate by using a high-energy electric pulse to drive an energetic material. The device includes high-energy pulse discharge equipment, an intelligent robot arm control system, a vacuum pumping device, a hydraulic press, a forming die, positive and negative electrodes, an energetic rod, and liquid supply equipment. According to the present disclosure, energy of a metal wire is added to energy of an energetic material after energy release to implement high-rate forming of the plate. A discharge voltage of the high-energy pulse discharge equipment is reduced and a service life thereof is prolonged. The discharge equipment is triggered by the manufactured small-size electric pulse metal wire, thereby reducing a volume and costs of the equipment and miniaturizing the equipment to implement precise operating, forming, and intelligent integration with the robot arm control system.

Photoelectric autocollimation method and apparatus based on beam drift compensation

Method and apparatus based on detecting the polarization property of a polarization maintaining fiber probe for measuring structures of a micro part

Magnetically suspended and plane-drove vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a spherical air bearing

DEVICE FOR REALIZING SURFACE CLEANING OF OPTICAL ELEMENT BY ION WIND AND ELECTROSTATIC COUPLING

A device for realizing surface cleaning of an optical element by ion wind and electrostatic coupling, comprising a fixing support, an optical element, an ion wind system, an electrostatic adsorption system, and a particle contaminant storage box; the ion wind system comprises an air knife, an ion bar, an ion bar support, a connecting sheet, and a three-degree-of-freedom combined displacement stage; the electrostatic adsorption system comprises rod-shaped electrodes, electrode fixing supports and a manual displacement stage; the particle contaminant storage box is connected to a working surface by means of storage box supports, and an included angle between the particle contaminant storage box and the storage box supports is 135 degrees.

High-stability nano-radian-order angle measuring method and device based on drift value feedback

Disclosed is a high-stability nano-radian-order angle measuring method and device based on drift value feedback, belonging to the technical field of precision measurement and the field of optical engineering. The device consists of LED light sources, convex lenses, multi-slit diaphragms, beam splitters, deflecting mirrors, steering mirrors, a collimator objective set, linear array CCDs, a four-quadrant position detector and a plane mirror. The method includes: enabling two paths of measuring light beams to carry angle change information of a measured object, respectively forming respective images on two sensors, and calculating a pitch angle and a yaw angle of the measured object relative to an optical axis by using positions of the two images so as to achieve the detection capability on the angle change of the measured object. While a focal distance of the objective is greatly improved by using the collimator objective set, the linear array CCDs are used as sensors to improve a measuring ...

DEFORMATION-DRIVEN SOLID-PHASE EXTRUSION DEVICE AND ONE-STEP ALLOY BAR PREPARATION METHOD BY USING SAME

A deformation-driven solid-phase extrusion device and a one-step alloy bar preparation method by using the same are provided. The device includes a stir tool, an extrusion container and an ejector rod. The stir tool has an integral structure composed of an upper mounting part and a lower working part and having a hollow channel. The lower working part is disposed in a groove of the extrusion container, and the ejector rod is disposed in the hollow channel of the stir tool. The method includes adding alloy powder to the extrusion container, enabling the stir tool to exert a pressure and revolve at a high speed to cause large plastic deformation of the powder and generate heat by friction and deform among powder and the friction working surface of the working part, sintering the alloy powder and extruding the same through the hollow channel of the stir tool.

Method for efficiently preparing ferrate based on nascent interfacial activity

A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.

Five-degree-of-freedom adjustment and positioning method for assembly/measurement of rotor and stator of aircraft engine

Die capable of achieving rapid forming and quenching therein

The present invention provides a die capable of achieving rapid forming and quenching therein. The die includes an upper die, a blank holder and a lower die, where the upper die is composed of an internal solid die core and a thin-walled skin. Grooves in communication with each other are disposed between the internal solid die core and the thin-walled skin. In a forming stage, the grooves are not filled or filled with a heat insulating material such as a gas; and in a quenching stage, a low-temperature medium is introduced into the grooves. The die can be used to achieve rapid forming and quenching of metal materials of different types and thicknesses.

Ultraprecision non-contact three-dimensional probing system based on spherical capacitive surface

Micro focal-length collimation based micro-cavity measuring method and detecting equipment thereof

CAPABILITY TEST METHOD BASED ON JOINT TEST SUPPORT PLATFORM

Disclosed is a capability test method based on a joint test support platform. The method includes steps of describing an initial capability in a test, combining a capability to be developed based on the initial capability, and determining an evaluation strategy and a joint task background information of the test. Further, the method includes generating a logical shooting range for the joint test support platform according to the joint task background information, developing a test scenario according to the joint task background information and the logical shooting range, decomposing the test scenario, determining a test plan corresponding to the test scenario, executing the test according to the test plan, analyzing and evaluating a test result of the test, and generating one or more joint capability evaluation reports for the test.

Vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a spheric al air bearing

Confocal measurement device utilizing elliptical mirror based illumination

Stage-by-stage measurement, regulation and distribution method for dynamic characteristics of multi-stage components of large-scale high-speed rotary equipment based on multi-biased error synchronous compensation

The disclosure provides a stage-by-stage measurement, regulation and distribution method for dynamic characteristics of multi-stage components of large-scale high-speed rotary equipment. Firstly, a single-stage rotor circular contour measurement model is established, and the circular contour measurement model is simplified by using a distance from an ith sampling point of an ellipse to a geometry center to obtain a simplified circular contour measurement model. Then, actually measured circular contour data is taken into the simplified circular contour measurement model to determine a relationship between dynamic response parameters after rotor assembly and eccentricity errors as well as the amount of unbalance of all stages of rotors. Finally, a rotor speed is set according to the relationship between the dynamic response parameters after rotor assembly and the eccentricity errors as well as the amount of unbalance of all stages of rotors to obtain a critical speed parameter objective function ...

Method for multi-stage combustion with multi-ejection by a boiler

Active vibration isolation device based on electromagnetic and aerostatic floatation

Method and apparatus based on fiber bragg grating probe for measuring structures of a micro part

Locking and separating mechanism capable of achieving sequential release of multiple satellites and working method thereof

The disclosure provides a locking and separating mechanism capable of achieving sequential release of multiple satellites and a working method thereof. The locking and separating mechanism includes a satellite group, two sets of locking assemblies and two sets of separating assemblies, wherein the satellite group includes a plurality of satellite bodies, the locking assemblies are located above the satellite group, the locking assemblies are connected with a base, the two sets of locking assemblies are arranged symmetrically at the diagonal line of the satellite group, the two sets of separating assemblies are arranged symmetrically on the two opposite sides of the satellite group, the bottom parts of the separating assemblies are fixedly connected with the base, and the inner sides of the separating assemblies are connected with the satellite group; the separating assemblies include sliding rails, a plurality of sliding blocks, redundant steel wire ropes, fixed pulleys A, pulley support ...

Five-degree-of-freedom adjustment and positioning apparatus for assembly and measurement of rotor and stator of aircraft engine

System for hydrogen production under limited aerobic conditions

The present invention provides a method for fermentative hydrogen production under limited aerobic conditions by utilizing the respiratory interaction between a strictly anaerobic hydrogen producing bacterium, YUAN-3, and a facultative anaerobic bacterium, PAO1. The two bacteria are co-cultured to produce hydrogen gas in a culture medium without any anaerobic treatment. Sucrose, lactose or glucose are used as the carbon source for the co-culture which can promote the growth of YUAN-3 and reduce substrate competition between two bacteria. L-cysteine is added to increase the hydrogen yield and the production rate. Using 15 g/L glucose and 5 mmol/L L-cysteine, the invented method achieved the hydrogen production yield of 1.11 mol-hydrogen/mol-glucose. 1. A method for hydrogen production under limited aerobic conditions , comprising:{'i': E. harbinense', 'P. aeruginosa, 'a, co-culturing YUAN-3 and PAO1 in a liquid medium containing 10 to 20 g/L sucrose or lactose in a sealed container at 35° C.; and'}b, collecting hydrogen gas at 1 to 50 hours after the start of the co-culture.2. (canceled)3. The method of claim 1 , wherein the liquid medium contains 15 g/L sucrose or lactose.4. The method of claim 1 , wherein the liquid medium further comprises 0 to 15 mmol/L of L-cysteine.5. The method of claim 1 , wherein the liquid medium further comprises 5 to 10 mmol/L of L-cysteine.6. The method of claim 1 , wherein the liquid medium comprises 5 mmol/L of L-cysteine.7. The method of claim 1 , wherein the liquid medium comprises 4 g peptone claim 1 , 1 g yeast extract claim 1 , 2 g beef extract claim 1 , 4 g NaCl claim 1 , 1.0 g KHPOand 0.2 g MgCl.6HO per liter.8E. harbinenseP. aeruginosa. The method of claim 1 , wherein 0.1-0.2 g of YUAN-3 and 0.08-0.12 g of PAO1 are inoculated into the liquid medium.9. The method of claim 1 , wherein during the sealed culture claim 1 , a shaker or a magnetic stirrer is used for agitation and culture; wherein conditions for culturing using the ...

AIRCRAFT ENGINE ROTOR ASSEMBLY METHOD AND DEVICE

Aircraft engine rotors traditionally have low coaxiality after assembly. This is solved by the methods and devices described herein, having advantages that the rotors have high coaxiality after assembly, reduced vibration, easy installation, high flexibility, and improved engine performance. A measurement method and device use an air flotation rotary shaft system determining a rotary reference. An induction synchronizer determines angular positioning of a turntable. Using a four probe measurement device, a radial error of a rotor radial assembly surface and an inclination error of an axial mounting surface are extracted and an influence weight value of the rotor on the coaxiality of assembled rotors is obtained. All rotors required for assembly are measured and an influence weight value of each on the coaxiality of the assembled rotors is obtained. Vector optimization is performed on the weight value of each rotor and an assembly angle of each rotor is obtained. 2. A device for assembling a rotor of aircraft engine , the device comprising: the workbench located on an upper end portion of the air bearing upper platen which is arranged on an upper end portion of the air bearing spindle;', 'the air bearing spindle is located on an upper end portion of the air bearing lower platen;', 'the inductosyn sliding scale is fitted to an outer ring of the air bearing lower platend) and the inductosyn fixed scale is fixed to a lower portion of an inner side of the central position of the base and is located above the inductosyn sliding scale;', {'b': '2', 'i': 'g', 'the motor stator () is fixed to the lower portion of the inner side of the central position of the base and is located below the inductosyn fixed scale and outside the motor rotor;'}, 'the motor rotor is fitted to the outer ring of the air bearing lower platen and is located below the inductosyn sliding scale;, 'an air bearing system fitted to a central position of a base, the air bearing system comprising an air ...

METHOD FOR PREDICTING COAXIALITY OF PARTS OF ROTARY EQUIPMENT BASED ON GA-PSO-BP NEURAL NETWORK

A GA-PSO-BP neural network is provided for performing a measurement of a coaxiality error of parts of a rotary equipment and predicting a coaxiality of parts of the rotary equipment in order to solve a problem that a coaxiality error of saddle surface parts is difficult to calculate by building a traditional mathematical model based on a three-dimensional coordinate system transformation due to serious deformation of fitting surfaces of spigots. The GA-PSO-BP neural network method includes the steps of analyzing an influence source of the coaxiality error of multi-stage parts after assembly; then taking an error source as an input and the coaxiality error of the multi-stage parts after assembly as an output; and introducing a genetic algorithm to optimize an initial weight and threshold of a BP neural network, and introducing a particle swarm optimization to find optimal solutions of hyperparameters.

Magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing

Conjugate double-pass confocal measurement device with fluorescent mirror or phase conjugate mirror

Verteiltes Entmagnetisierungsspulensystem und Abschirmeinrichtung

Verteiltes Entmagnetisierungsspulensystem, dadurch gekennzeichnet, dass das verteilte Entmagnetisierungsspulensystem umfasst: mehrere Wicklungen von Entmagnetisierungsspulen und mehrere Verbindungsleitungen;wobei in einer Abschirmeinrichtung um jede Abschirmfläche eines Abschirmkörpers gleichmäßig beabstandet mehrere Wicklungen der Entmagnetisierungsspulen gewickelt sind, wobei sich eine Hälfte jeder Wicklung der Entmagnetisierungsspulen an der Innenseite und die andere Hälfte an der Außenseite des gewickelten Abschirmkörpers befindet, um ein entsprechendes Entmagnetisierungsfeld bereitzustellen und einen verschlossenen magnetischen Kreislauf zu bilden;wobei die Verbindungsleitungen gefaltet auf den Außenseiten der Abschirmflächen angeordnet sind, wobei eine Hälfte jeder Verbindungsleitung eine Stromeingangsverbindungsleitung, die mit den entsprechenden Entmagnetisierungsspulen verbunden ist, und die andere Hälfte eine Stromausgangsverbindungsleitung, die auf demselben Weg zurückgeht, darstellt ...

Vector arc revolve transposition method for moving magnetic steel magnetic levitated dual-table system based on revolve balance mass and device thereof

Single-beam three-degree-of-freedom homodyne laser interferometer based on array detector

A single-beam three-degree-of-freedom homodyne laser interferometer based on an array detector. A single-frequency laser beam is input to a Michelson interference structure, the measurement beam and the reference beam perform non-coaxial interference and form a single-beam homodyne interference signal by setting the angle of a reference plane mirror, the array detector is selected to effectively receive the single-beam homodyne interference signal, and finally, three-degree-of-freedom signal linear decoupling on the single-beam homodyne interference signal is achieved through a three-degree-of-freedom decoupling method based on Lissajous ellipse fitting. The laser interferometer does is free of angle decoupling nonlinearity, the period nonlinear error is remarkably reduced, compared with other existing three-degree-of-freedom laser interferometers, the laser interferometer has the advantages of being simple in structure, large in angle measurement range and easy to integrate, and the high-precision ...

Vergasungsvorrichtung für Kohlepulver mit mehrstufiger Zuführung von Vergasungsmittel und starker Verwirbelung sowie entsprechendes Vergasungsverfahren

Vergasungsvorrichtung für Kohlepulver mit mehrstufiger Zuführung eines Vergasungsmittels, umfassend:• einen Kohlenstaubbrenner (1), einen Vergasungsofenkörper (2), eine Wasserkühlungswand (4), einen Synthesegaskanal (5),• wobei der Vergasungsofenkörper (2) mindestens eine Vergasungsmitteldüse (7) mit einer Vergasungsmittelausstoßöffnung aufweist,• wobei die Wasserkühlungswand (4) auf einer inneren lateralen Seitenwand des Vergasungsofenkörpers (2) positioniert ist,• wobei die Wasserkühlungswand aus einer Mehrzahl von vertikalen Rundrohren zusammengesetzt ist, und eine durch die Wasserkühlungswand (4) eingeschlossene Kammer, in der die Medien rotieren, im Ofenkörperinneren als Vergasungsofenkammer (3) ausgebildet ist,• wobei der Kohlenstaubbrenner (1) am Oberteil des Vergasungsofenkörpers (2) derart positioniert ist, dass eine Achsenlinie des Kohlenstaubbrenner (1) mit einer Achsenlinie der Vergasungsofenkammer (3) übereinstimmt, wobei ein Unterteil des Vergasungsofenkörpers (2) als Schlackenbad ...

Connection and separation device driven by memory alloy wires

The disclosure provides a connection and separation device driven by memory alloy wires, including an active end and a passive end. The active end includes a housing, an outer sleeve, fixed sheets, compression springs, a rotating sleeve, a base, memory alloy wires, guide wheels, a lock pin, a limiting sleeve I and a limiting sleeve II. The passive end includes a screw rod, a loading nut, a separation element and an adaptor. The upper end of the screw rod is provided with a threaded section matched with the loading nut, and the lower end of the screw rod is provided with multi-layer oblique protrusions. The multi-layer oblique protrusions extend into the upper part of an accommodating space formed by the limiting sleeve I and the limiting sleeve II. The memory alloy wires are shortened when being electrified, the base and the lock pin move up, the lock pin releases the limit on the lower ends of the limiting sleeve I and the limiting sleeve II, the two limiting sleeves rotate at the same ...

Method of synthesizing ferrate

A method of synthesizing ferrate, which includes the steps of: (a) weighing and obtaining iron salts, activating agents, alkalinizing agents and oxidizing agents solution; (b) mixing uniformly the iron salts, the activating agents and the alkalinizing agents, heating to 30˜398° C. and maintaining for 1 min˜60 min to obtain a mixture; (c) adding the oxidizing agents solution to the mixture with an adding time of less than 10 minutes, then obtaining a precursor; and (d) natural cooling the precursor, then mixing the precursor with water and stirring evenly to obtain a final product of ferrate, wherein a volume ratio of the precursor and the water is 1:1˜5. The method involves low power consumption, low temperature, low explosion risk, non-complicated steps and procedures, short synthetic time and high ferrate conversion efficiency. The method produces ferrate of high yield and good stability, and is suitable for producing ferrate composite pharmaceuticals in industrialized mass production ...

Detection Method for Sensitive Parts of Ionization Damage in Bipolar Transistor

The present invention provides a detection method for sensitive parts of ionization damage in a bipolar transistor, which includes the following steps: selecting an irradiation source, and carrying out irradiation test on the bipolar transistor to be tested; installing the irradiated bipolar transistor on a test bench of a deep level transient spectroscopy system, and setting test parameters; selecting at least two different bias voltages, and testing the bipolar transistor to obtain a deep level transient spectrum; determining whether a defect is an ionization defect according to a peak position of the defect signal in the deep level transient spectrum; determining the defect type as oxidation trapped charges or an interface state according to the level of the defect signal in the deep level transient spectrum; and determining the sensitive area of ionization damage in the bipolar transistor according to the determination result of the defect signal type. 1. A detection method for sensitive parts of ionization damage in a bipolar transistor , comprising the following steps:{'b': '100', 'step S: selecting an irradiation source, and carrying out an irradiation test on a bipolar transistor to be tested;'}{'b': '200', 'step S: installing the irradiated bipolar transistor on a test bench of a deep level transient spectroscopy system, and setting test parameters;'}{'b': '300', 'step S: selecting at least two different bias voltages, and testing the bipolar transistor to obtain a deep level transient spectrum;'}{'b': '400', 'step S: determining whether a defect signal is an ionization defect according to a peak position of the defect signal in the deep level transient spectrum;'}{'b': '500', 'step S: determining a type of the defect signal as an oxidation trapped charge signal or an interface state signal according to a level of the defect signal in the deep level transient spectrum; and'}{'b': '600', 'step S: determining a sensitive area of ionization damage in the ...

Method, medium, and system estimating pose of mobile robots

Photoelectric autocollimation method and apparatus based on beam drift compensation

Photoelectric autocollimation methods and apparatuses based on beam drift compensation are provided. The methods and apparatuses can be used to achieve a high autocollimation angle measurement accuracy. The apparatuses includes an autocollimator, a measurement mirror (12a), a beam drift monitoring and separating unit, a beam steering device (8), and a data processing controller (7). The beam drift monitoring and separating unit generate a reference beam with the same drift as the measurement beam. The measurement beam carries both angular deflection information of the measurement mirror and the angular beam drift information, while the reference beam carries only the angular beam drift information. The data processing controller gives out a signal to the beam steering device in real-time according to the magnitude of drift of the reference beam, to compensate the drift of the measurement beam.

Stable and high-capacity neutral aqueous redox flow lithium battery based on a redox-targeting reaction

The present disclosure discloses a stable and high-capacity neutral aqueous redox flow lithium battery based on redox-targeting reaction and belongs to the technical field of flow lithium batteries. The present disclosure solves the technical problem that an existing flow battery can only work at low current density. The flow lithium battery of the present disclosure includes a positive electrode storage tank and a negative electrode storage tank; the positive electrode storage tank is filled with a positive electrolyte; and the negative electrode storage tank is filled with a negative electrolyte. The flow lithium battery is characterized in that the positive electrolyte includes a salt containing [Fe(CN)6]4− and/or [Fe(CN)6]3−, and the positive electrode storage tank is further filled with LFP particles and/or FP particles. The flow lithium battery of the present disclosure has wide application prospects in the field of large-scale energy storage.

Magnetic field-modulated transverse flux multiphase permanent magnet motor

A magnetic field-modulated transverse flux multiphase permanent magnet motor consisting of a stator and a rotor. A number m of phase armature units are arranged in a row along the axial direction within a motor housing (1); each successive phase armature unit is offset in the circumferential direction by an electrical angle of 360°/m; the armature coil (2) is embedded within an annular cavity between the first to the third stator iron core tooth segments (3, 4, 5); the external circumferential surfaces of the first and the third rotor iron core tooth segments (6, 8) are respectively grooved in the axial direction with k/2 permanent magnet slots; the rotor permanent magnet slot on the first rotor iron core tooth segment (6) is axially offset from the rotor permanent magnet slot on the third rotor iron core tooth segment (8) by one-half the rotor tooth pitch; the direction of magnetization of the rotor permanent magnets (9) is identical. The present motor features high reliability and high ...

Terrain modeling method that fuses geometric characteristics and mechanical characteristics and computer readable storage medium thereof

A terrain modeling method that fuses geometric characteristics and mechanical characteristics, and a terrain modeling system are provided in the present invention. The method includes steps of: obtaining color images and depth images of the detected region, performing a terrain semantic segmentation on the color images, and fusing ground semantic information obtained by the semantic segmentation and depth information contained in the depth images at the same time to generate the point clouds; mapping the point clouds to a raster map in a map coordinate system to generate corresponding rasters, and updating the elevation values to the corresponding rasters; and calculating the input images in terms of terra-mechanical characteristics, and updating calculation results to the corresponding rasters to generate a terrain model. A mechanical characteristic parameter is added to a terrain factor, and terrain characteristics are innovatively performed from two dimensions of geometric characteristic ...

Ultrasonic brazing of aluminum alloy and aluminum matrix composite

A method of ultrasonic brazing metal matrix composite, which forms a reinforced composite bond without filling welding wire with reinforcement or adding alloy element to generate ceramic phase, includes the steps of setting a filler metal; introducing ultrasonic vibration to braze in air; dissolving the base materials, and introducing ultrasonic wave again. The method performs the aluminum brazing at low temperature. The periodic time of brazing is shorter and the cost is lower than the conventional brazing methods. The strength, service temperature and dimensional stability of the joint are close to the base article.

Hochauflösendes High Speed-Interferometrie-Verfahren und System

Es werden ein Hochgeschwindigkeits-hochauflösendes heterodynes interferometrisches Verfahren und ein System vorgeschlagen. Die Erfindung verwendet zwei räumlich getrennte Strahlen mit geringfügig unterschiedlichen Frequenzen und hat zwei Messsignale mit entgegengesetzter Dopplerverschiebung. Der Umschaltschaltkreis wählt eines der beiden Messsignale für eine Verschiebungsmessung gemäß der Richtung und der Geschwindigkeit der Zielbewegung aus. Bei dieser Erfindung ist die Messung für thermische Abweichungen unempfindlich. Die periodische Nichtlinearität wird im Wesentlichen dadurch beseitigt, dass zwei räumlich getrennte Strahlen verwendet werden. Die messbare Zielgeschwindigkeit des Interferometers wird nicht länger durch die Taktfrequenz der Laserquelle begrenzt.

Method for removing heavy metal pollutants in water with divalent manganese strengthened ferrate

In order to solve the problem in the existing conventional water treatment process of low removal efficiency of heavy metal in water, especially lower efficiency for simultaneous removal of heavy metal pollutants during coexisting, a method is provided for removing heavy metal pollutants in water with divalent manganese strengthened ferrate: preparing a ferrate mother liquor having the concentration of 20-10,000 mmol/L; preparing a divalent manganese salt mother liquor having the concentration of 30-10,000 mmol/L; adding the divalent manganese salt mother liquor into water of the heavy metal pollutants; then adding the ferrate mother liquor, and reacting; and then adding a flocculant and precipitating, so that the removal rate of arsenate, chromium, thallium, antimony, chromium and molybdate in water is 90% or more, and the removal rate of heavy metal such as lead and cadmium is 85% or more.

Preparation method for composite ferrate reagent

A preparation method for a composite ferrate reagent. 1, Weigh raw materials; 2, evenly mix a ferric salt, an activating agent and an alkali maintaining agent and heat the mixture; 3, add an oxidant solution; and 4, cool and mix the solution with water. The technical problems of high energy consumption, low yield and poor ferrate product stability of the existing method for preparing ferrate are solved. The obtained product can be stably stored, and the yield of the ferrate reaches 60% to 95%.

Quick responsive, shape memory thermoset polyimide and preparation method thereof

A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation.

Detection coil structure based on interlayer coupling and metal object detection system

The disclosure discloses a detection coil structure based on interlayer coupling and a metal object detection system. The detection coil structure includes: a top sub-detection coil and a bottom sub-detection coil, wherein the top and bottom sub-detection coils are the same in structure and similar or same in size and are orthogonal to each other, and both the outer boundaries and geometric symmetry centers of the detection coils are completely coincident; the top sub-detection coil includes a first terminal, a second terminal, a third terminal and a fourth terminal, and the bottom sub-detection coil includes a fifth terminal, a sixth terminal, a seventh terminal and an eighth terminal; and the first terminal is connected to the second terminal, the seventh terminal is connected to the eighth terminal, and the third terminal and the fourth terminal are respectively connected to the fifth terminal and the sixth terminal. When there is no metal object near the coil, the top and bottom sub-detection ...

Micro focal-length collimation based micro-cavity measuring method and detecting equipment thereof

A micro-cavity measuring method and equipment based on micro focal-length collimation are provided. The equipment can be used to measure irregular micro-cavities and "sub-macro" micro-cavities. Wherein a cylindrical or spherical lens with micro focal-length is combined with a fiber probe(11,12) to form a collimating and imaging optical system of a point light source(8), and the collimating and imaging optical system transforms the two or three dimensional movement of the fiber probe(11,12) into a change in image ultra-highly sensitively. A lot of advantages are obtained, i.e., micro measuring force, high aspect ratio, easy miniaturization, high resolution, simple construction and high speed.

Leg-arm-propeller underwater robot

A leg-arm-paddle underwater robot is provided in the present invention, which includes: a frame, an operating mechanism, a traveling mechanism, and a propulsion mechanism. The traveling mechanism is adapted to enable the leg-arm-paddle composite underwater robot to travel. The propulsion mechanism is adapted to enable the leg-arm-paddle composite underwater robot to float in water. The operating mechanism includes a first robot arm, a second robot arm, and a first mounting base, wherein the first mounting base is detachably connected to the frame. Both the first robot arm and the second robot arm are rotatably connected to the first mounting base, and rotation centers of the first robot arm and the second robot arm are the same. The operating mechanism of the leg-arm-paddle composite underwater robot has a compact structure and a large working range. The leg-arm-paddle composite underwater robot has reduced volume, enhanced operation capability, wide applicability, and strong practicability ...

Method for Efficiently Preparing Ferrate Based on Nascent Interfacial Activity

A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.

Method of Synthesizing Ferrate

A method of synthesizing ferrate, which includes the steps of: (a) weighing and obtaining iron salts, activating agents, alkalinizing agents and oxidizing agents solution; (b) mixing uniformly the iron salts, the activating agents and the alkalinizing agents, heating to 30˜398° C. and maintaining for 1 min˜60 min to obtain a mixture; (c) adding the oxidizing agents solution to the mixture with an adding time of less than 10 minutes, then obtaining a precursor; and (d) natural cooling the precursor, then mixing the precursor with water and stirring evenly to obtain a final product of ferrate, wherein a volume ratio of the precursor and the water is 1:1˜5. The method involves low power consumption, low temperature, low explosion risk, non-complicated steps and procedures, short synthetic time and high ferrate conversion efficiency. The method produces ferrate of high yield and good stability, and is suitable for producing ferrate composite pharmaceuticals in industrialized mass production ...

Magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing

A magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing has a main body, in which a sleeve and a lower mounting plate are supported with a magnetically suspended thrust bearing, a piston cylinder and the sleeve are lubricated and supported with a cylinder air bearing surface, and the angle degree of freedom between a upper mounting plate and the lower mounting plate is decoupled with a joint ball bearing; a position close-loop control system comprising voice coil motors, displacement sensors, limit switches, a controller and a driver is introduced, and the relative position between the upper mounting plate and the lower mounting plate is precisely controlled.

Pulverized coal gasification furnace with multi-level feeding of high speed circulating gasification agent and gasification method

A pulverized coal gasification furnace with multi-level feeding of high speed circulating gasification agent which includes a pulverized coal gasification furnace and a gasification method. The present invention solves the existing problems in short life of burner, uneven slag deposition on the surface of the gasification device which causes burning and corrosion, and uneven temperature distribution along the height direction. The steps are: 1. setting parameters for the gasification chamber; 2. feeding pulverized coal; 3. burning pulverized coal to form molten slag; 4. gasification process of molten slag inside the gasification furnace; 5. removing slag. In the present invention, the furnace body is divided into different levels for the gasification agent, the internal temperature of the furnace along the height direction is evenly distributed, and the furnace is applicable to the coal types which has severe change in ash viscosity in response to temperature changes.

SINGLE-BEAM THREE-DEGREE-OF-FREEDOM HOMODYNE LASER INTERFEROMETER BASED ON ARRAY DETECTOR

A single-beam three-degree-of-freedom homodyne laser interferometer based on an array detector. A single-frequency laser beam is input to a Michelson interference structure, the measurement beam and the reference beam perform non-coaxial interference and form a single-beam homodyne interference signal by setting the angle of a reference plane mirror, the array detector is selected to effectively receive the single-beam homodyne interference signal, and finally, three-degree-of-freedom signal linear decoupling on the single-beam homodyne interference signal is achieved through a three-degree-of-freedom decoupling method based on Lissajous ellipse fitting. The laser interferometer does is free of angle decoupling nonlinearity, the period nonlinear error is remarkably reduced, compared with other existing three-degree-of-freedom laser interferometers, the laser interferometer has the advantages of being simple in structure, large in angle measurement range and easy to integrate, and the high-precision requirement of the three-degree-of-freedom laser interferometer for displacement and angle measurement is met. 1. A single-beam three-degree-of-freedom homodyne laser interferometer based on an array detector , comprising a first input beam with a single frequency , a Michelson interference structure and an array detection and signal decoupling module;wherein the Michelson interference structure comprises a fixed reference plane mirror and a movable target plane mirror;the first input beam is split into a first measurement beam and a first reference beam after entering the Michelson interference structure; the first measurement beam is reflected at least once by the target plane mirror, and the first reference beam is reflected at least once by the reference plane mirror;and at least a part of the first measurement beam and at least a part of the first reference beam coincide in an output travel path to form a first single-beam homodyne interference signal.2. The single- ...

Integrated device and treatment method for synchronous ecological treatment of domestic sewage and sludge

An integrated equipment and treatment method for synchronous ecological treatment of domestic sewage and sludge, the equipment includes a one-piece box-shaped main body divided into several tank compartments which includes an anaerobic tank, a sludge reduction and denitrification tank, an aerobic tank, a sedimentation tank, and a disinfection tank, an inlet pipe for sewage and sludge entrance and an outlet pipe for exit of effluent after treatment. The sludge reduction and denitrification tank is equipped with variable microporous aeration pipes, worm fillers and multi-functional water quality online detectors. The aerobic tank is equipped with aeration pipeline components and DO online detectors. The sewage and sludge are guided to passing through the different tank compartments in order for simultaneous sewage treatment and sludge reduction. The removal rate of total nitrogen is as high as 85%, and the simultaneous reduction effect of sludge can reach more than 60%.

LEG-ARM-PADDLE COMPOSITE UNDERWATER ROBOT

A leg-arm-paddle underwater robot is provided in the present invention, which includes: a frame, an operating mechanism, a traveling mechanism, and a propulsion mechanism. The traveling mechanism is adapted to enable the leg-arm-paddle composite underwater robot to travel. The propulsion mechanism is adapted to enable the leg-arm-paddle composite underwater robot to float in water. The operating mechanism includes a first robot arm, a second robot arm, and a first mounting base, wherein the first mounting base is detachably connected to the frame. Both the first robot arm and the second robot arm are rotatably connected to the first mounting base, and rotation centers of the first robot arm and the second robot arm are the same. The operating mechanism of the leg-arm-paddle composite underwater robot has a compact structure and a large working range. The leg-arm-paddle composite underwater robot has reduced volume, enhanced operation capability, wide applicability, and strong practicability. 1. A leg-arm-paddle composite underwater robot , comprising:{'b': 1', '2', '3', '4, 'a frame (), an operating mechanism (), a traveling mechanism () and a propulsion mechanism ();'}{'b': '3', 'wherein the traveling mechanism () is adapted to enable the leg-arm-paddle composite underwater robot to travel;'}{'b': '4', 'wherein the propulsion mechanism () is adapted to enable the leg-arm-paddle composite underwater robot to float in water;'}{'b': 2', '210', '220', '230', '230', '1', '210', '220', '230', '210', '220, 'wherein the operating mechanism () comprises a first robot arm (), a second robot arm (), and a first mounting base (), wherein the first mounting base () is detachably connected to the frame (), both the first robot arm () and the second robot arm () are rotatably connected to the first mounting base (), and rotation centers of the first robot arm () and the second robot arm () are the same.'}2210211220221211221230211221. The leg-arm-paddle composite underwater robot ...

Real time birefringent imaging spectrometer based on differential structure

A real-time birefringent imaging spectrometer based on differential structure is provided. A polarization beam splitter to add an imaging branch is set. Meanwhile, the structure alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. Common-mode error is intensively restrained due to the differential structure, and 50% of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.

Method for simulating daylight performance of buildings based on regional daylight climate data

The present invention provides a method for simulating daylight performance of buildings based on regional daylight climate data. The method comprises the steps of: establishing a regional sky luminance distribution database from measured data; mapping sky luminance data to an artificial sky lamp group; using a 3D printing machine to fabricate a scaled physical model based on real parameters of the building to be simulated; and using the scaled physical model in the artificial sky integrated with regional sky luminance distribution data to make the daylight performance simulation. This method can achieve high-precision simulation of the daylight performance of buildings by using regional sky daylight climate data with a highly accurate physical model of the building.

Method and system for controlling axial length of ellipsoidal shells based on liquid volume loading

The present invention discloses a method and system for controlling axial length of an ellipsoidal shell based on liquid volume loading. The method includes: determining the volume calculation models of an unformed prefabricated shell and a formed ellipsoidal shell; determining a calculation model of a volume difference between the unformed prefabricated shell and the formed ellipsoidal shell; determining a structure size of the unformed prefabricated shell according to a target axial length of the formed ellipsoidal shell; obtaining the volume difference between the formed ellipsoidal shell and the unformed prefabricated shell, and recording the volume difference as a target volume; injecting liquid into the unformed prefabricated shell with target volume to obtain the formed ellipsoidal shell. The forming process in the present invention is simple and easy to implement without considering differences in materials and wall thicknesses and can control and adjust the axial length dimension ...

Capability test method based on joint test support platform

Disclosed is a capability test method based on a joint test support platform. The method includes steps of describing an initial capability in a test, combining a capability to be developed based on the initial capability, and determining an evaluation strategy and a joint task background information of the test. Further, the method includes generating a logical shooting range for the joint test support platform according to the joint task background information, developing a test scenario according to the joint task background information and the logical shooting range, decomposing the test scenario, determining a test plan corresponding to the test scenario, executing the test according to the test plan, analyzing and evaluating a test result of the test, and generating one or more joint capability evaluation reports for the test.

Ein Freiformoberflächenmessgeräts auf der Basis von silberverstärkter Fluoreszenz und sein Messverfahren

Die vorliegende Erfindung betrifft ein Freiformoberflächenmessgerät auf Basis von silberverstärkter Fluoreszenz und sein Messverfahren und gehört zum technischen Gebiet der optischen Präzisionsmessung. Die Aufgabe der vorliegenden Erfindung ist es, das Problem zu lösen, dass der Oberflächenhöhenfehler aufgrund der Ungleichmäßigkeit der fluoreszierenden Zwischenschicht auf der Probenoberfläche groß ist. Die vorliegende Erfindung bezieht sich auch auf ein Messverfahren eines Freiformoberflächenmessgeräts auf der Basis von silberverstärkter Fluoreszenz. Ein Metallfluoreszenzfilm wird auf die Oberfläche der zu messenden Probe plattiert. Der Lasergerät sendet einen Laserstrahl aus, der durch einen Kollimator und eine Apertur ein paralleles Licht erzeugt. Paralleles Licht passiert wiederum das Polarisationsteilungsprisma, das Abtastgalvanometer und die Abtastlinse, und bildet einen Fokuslichtfleck auf der zu messenden Probe, der den Metallfluoreszenzfilm stimuliert, um Fluoreszenz zu emittieren ...

Vergasungsvorrichtung für Kohlepulver mit mehrstufiger Zuführung von Vergasungsmittel und starker Verwirbelung sowie entsprechendes Vergasungsverfahren

Die Vergasungsvorrichtung für Kohlepulver mit mehrstufiger Zuführung von Vergasungsmittel und starker Verwirbelung bezieht sich auf eine Art von Vergasungsvorrichtung für Kohlepulver mit mehrstufiger Zuführung von Vergasungsmittel und starker Verwirbelung sowie entsprechendes Vergasungsverfahren. Die vorliegende Erfindung versucht die folgenden technischen Probleme des gegenwärtigen Standes der Technik zu lösen, nämlich kurze Lebensdauer des Brenners, die an der Wandoberfläche des Vergasungsofens hängende Schlacke ist nicht gleichmäßig verteilt, die Innenwand des Vergasungsofens erleidet leicht Brandschäden und Fraß sowie das Problem einer ungleichmäßigen Temperaturverteilung in Höhenrichtung. Die Schritte zur Verwirklichung der Lösung sind: I. Festlegen der Parameter für das Innere der Vergasungsofenkammer; II. Einschicken des Kohlepulvers; III. Erzeugen von Schlacke durch Verbrennung von Kohlepulver; IV. Vergasungsumsetzen der Schlacke im Inneren des Vergasungsofens; V. Austreten der ...

Quick responsive, shape memory thermoset polyimide and preparation method thereof

A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation.

Hybrid visual servoing method based on fusion of distance space and image feature space

The present disclosure relates to a visual servoing method based on fusion of distance space and image feature space. The method includes: constructing an image Jacobian matrix; constructing a depth Jacobian matrix; fusing the image Jacobian matrix and the depth Jacobian matrix, to obtain a hybrid visual servoing Jacobian matrix; and obtaining a robot motion control amount according to the hybrid visual servoing Jacobian matrix by using a control algorithm, to enable a robot to move to a target position, to complete precise positioning.

Linkage device, transceiver module and plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle

Disclosed are a linkage device, a transceiver module and a plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle, and relates to the field of ultrasonic non-destructive testing. The existing technical means for measuring plane stress in the field of ultrasonic testing has the shortcomings that the same testing is only applicable for single materials and the deflection angles of transmitting and receiving transducers are inconsistent. In the application, the linkage device designed by comprising a distance adjusting screw, an angle adjusting screw, a left connecting rod, a right connecting rod, a shaft column and a column lock is adopted, and based on the linkage device, the transceiver module designed by comprising a receiving end wedge, a receiving probe, a transmitting end wedge and a transmitting probe is additionally arranged; based on the transceiver module, the measuring device designed by comprising a pulse transmitting device ...

Translation Mirror Based Beam Steering Mechanism With Ultrahigh Frequency Response And High Sensitivity

This invention relates to a beam steering mechanism with ultrahigh frequency response and high sensitivity, which is based on the translation of two mirrors. Beam steering is achieved by the translations of two mirrors in the X axial mirror group and Y axial mirror group. The two translation mirrors are located at the output ends of two PZT actuators, and are directly actuated by the two PZT actuators. The dynamic characteristics of the two translation mirrors are always exactly the same as the output characteristics of the PZT actuators. There is no mechanical translation loss in this beam steering mechanism, and so, the beam steering mechanism has an ultrahigh frequency response and high angular deflection sensitivity. 1. (canceled)2. A translation mirror-based beam steering mechanism comprising:a preset positive lens; a primary translation mirror in a tilting position along an emergent beam path of the preset positive lens and located at an output end of a primary actuator; and', 'a primary fixed mirror positioned along a path of a beam reflected from the primary translation mirror and disposed in parallel with the primary translation mirror, wherein the primary actuator is electrically connected to a driver source;, 'an X axial mirror group including a secondary translation mirror positioned along a path of a beam reflected from the primary fixed mirror and located on an output end of a secondary actuator; and', 'a secondary fixed mirror positioned along a path of a beam reflected from secondary translation mirror and disposed in parallel with the secondary translation mirror, wherein the secondary actuator is electrically connected to the driver source; and, 'a Y axial mirror group includinga collimating lens positioned along a path of a beam reflected from the secondary fixed mirror;wherein a focal plane of the collimating lens coincides with a plane on which the preset positive lens is focused so that the collimating lens and the preset positive lens ...

Laser cleaning equipment and cleaning method for shaft component

Laser cleaning equipment and a cleaning method for a shaft component are provided. The equipment includes: a supporting base assembly; two driving wheel structures on the supporting base assembly, driving wheels of each of which is configured for being close to or away from each other, and the shaft component to be cleaned is placed between the two driving wheel structures; a friction wheel structure that is tangent to driving wheel structure(s) and uses a friction force thereof to drive driving wheel structure(s) to rotate; a connection shaft assembly that coaxially passes through the friction wheel structure; a power driving mechanism, one end of which that faces toward the connection shaft assembly is in drive connection with the connection shaft assembly and is configured to drive the connection shaft assembly to rotate; and a laser cleaning mechanism configured for performing laser cleaning on the shaft component to be cleaned.

Method and system for controlling dimensions of metal hydroformed parts

Some embodiments of the disclosure provide methods and systems for controlling dimensions of metal hydroformed parts. According to an embodiment, a control method includes: obtaining an inner cavity volume of a target part and an inner cavity volume of a tube blank; injecting a liquid into the tube blank under a high pressure condition; determining a liquid volume compression compensation quantity according to the inner cavity volume of the target part; determining a liquid volume increment-target part corner radius relationship according to the inner cavity volume of the target part, the inner cavity volume of the tube blank, and the liquid volume compression compensation quantity; determining a liquid volume increment according to the liquid volume increment-target part corner radius relationship; and controlling dimensions of a metal hydroformed part according to the liquid volume increment.

Spectral analysis device based on Brillouin dynamic grating and analysis method thereof

A spectroscopic analysis device based on Brillouin dynamic grating and its analysis method, which provides high resolution and large measuring range at the same time. The device includes a laser device (1), a fiber optic coupler device (2), a first fiber amplifier device (3), a first isolator (4), a first polarization controller (5), a second polarization controller (6), a single-sideband modulation modulator (7), a second fiber amplifier device (8), a second isolator (9), a third polarization controller (10), a single-mode fiber (11), a polarization beam splitter (12), a circulator (13), a photodetector (14), a data acquisition card (15), a fourth polarization controller (16) and a microwave source (17). The method utilizes the Brillouin scattering of two beams of pump light in optical fiber forming Brillouin dynamic gratings as the spectral element and achieve a sub-MHz resolution.

Air suspension support and motion guiding device having unequal-depth throttling chambers

An air suspension support and motion guiding device having unequal-depth throttling chambers. Throttling plugs (10) are arranged regularly on an air suspension working surface, forming an array of throttling chambers with unequal depths. The invention improves the rotational stiffness per unit area for an air suspension working surface while ensuring support and stability of an air-suspended rail (1) and enables construction of a small-volume, long cantilever, high torque load two-dimensional motion reference device.

High-temperature negative-pressure air exchange sterilizer and sterilization method thereof

The present disclosure provides a high-temperature negative-pressure air exchange sterilizer and a sterilization method thereof. An air inlet is disposed at a bottom of a waterproof shell of the sterilizer, and an inlet filter is installed at the air inlet. Air entering from the air inlet is divided into two paths at a check valve. One path is connected with a negative-pressure fan through a pipeline B, and the other path is communicated with an air outlet through a pipeline A. A plurality of heating rods and temperature sensors are disposed in the pipeline A. The pipeline A is zigzag disposed at an upper part of the waterproof shell, and a thermal insulation material is disposed outside a zigzag part. A butterfly valve and an outlet filter screen are sequentially disposed at the air outlet in an air exhaust direction. The problem that viruses exhaled by breathing of an infected person are mixed in aerosol, so that a person in close contact with the infected person is likely to be infected ...

High-frequency-reproducibility laser frequency stabilization method and device based on multi-point acquisition of laser tube temperature

The disclosure provides a high-frequency-reproducibility laser frequency stabilization method and device based on multi-point acquisition of laser tube temperature. The laser frequency stabilization device includes: a frequency stabilization control circuit. The frequency stabilization control circuit includes a polarizing beam splitter, an optical power conversion circuit, an A/D conversion circuit, a temperature measuring circuit, a microprocessor, a D/A converter and a heating film driver. The polarizing beam splitter is disposed outside any one of laser transmitting holes. The optical power conversion circuit is disposed on reflection and refraction optical paths of the polarizing beam splitter. The optical power conversion circuit, the A/D conversion circuit, the microprocessor, the D/A converter, the heating film driver and a plurality of groups of heating films are sequentially in one-way connection. Temperature sensors, the temperature measuring circuit and the microprocessor are ...

Real-time control system for industrial robot based on virtual reality (VR)

A real-time control system for industrial robots based on virtual reality (VR), including: a VR headset, a VR controller, a model construction module, a motion control module, a data communication system and a robot controller. Through the VR controller, a user can touch and drag an end of the gripper to move the robot in the Cyber environment. When the gripper moves into a bounding box of a control point, the data communication system is triggered, and a communication code corresponding to the control point is sent to the robot controller via a Unity engine script. After receiving the code, the robot controller sends the corresponding motion command such that the robot such that the robot moves in real time according to the control data.

Cantilever linear motion reference device employing two-layer air suspension

A cantilever linear motion reference device employing two-layer air suspension. By means of a two-layer force sealed air suspension structure, the invention realizes two-dimensional air suspension support and motion guiding and improves the rotational stiffness per unit for an air suspension working surface. By combining accurate driving and feedback control, the invention achieves high speed, high acceleration, high frequency motion, and enables construction of a small-volume, long cantilever, high torque load two-dimensional motion reference device.

Equipment and Method of Semi-Continuous Casting Optimized by Synergistic Action of Traveling Magnetic Field and Ultrasound Wave for Thin-Walled Alloy Casting with Equal Outer Diameter

A semi-continuous casting equipment for thin-walled alloy castings with equal outer diameter, optimized by synergistic action of traveling magnetic fields and ultrasonic wave, includes: a melting and insulation device, a heat insulation panel, a traveling magnetic field generator and a water-cooled crystallizer sequentially positioned on a working platform; an outer mold positioned on the water-cooled crystallizer and sleeved the traveling magnetic field generator; a mold core inside the outer mold defining a casting cavity; a bottom plate below the mold core capable of sliding against and along an inner side of the outer mold; two position control units supported by the working platform; an ultrasonic limit baffle moveably engaged with the position control units; an ultrasonic wave generator affixed on the ultrasonic limit baffle and extended to the casting cavity; a motion system controlling up and down movement of the bottom plate and the position control units through a gear transmission ...

Method for active disturbance rejection roll controller of vehicle under disturbance of complex sea conditions

The present disclosure provides a design method for an active disturbance rejection roll controller of a vehicle under disturbance of complex sea conditions, including: step 1: establishing a vehicle roll attitude control model; step 2: designing an active disturbance rejection controller (ADRC) on the basis of the control model in step 1 and a pole placement method; and step 3: performing an active disturbance rejection roll control by using the active disturbance rejection controller in step 2. The present disclosure solves the problem of a stable control of the vehicle under the disturbance of the complex sea conditions.

Low NOX swirl coal combustion burner

A burner includes a primary air-coal mixture duct coaxially extended through a secondary air wind box, a pulverized coal separator supported within the primary air-coal mixture duct, a secondary air duct including an inner secondary air duct and an outer secondary air duct coaxially formed around the primary air-coal mixture duct, a primary air-coal mixture conical outlet coupled with the outlet of the primary air-coal mixture duct, and inner secondary air and outer conical outlets coupled with the outlets of the inner secondary air and outer secondary air ducts respectively. The conical outlets are arranged to delay the mixing time of the primary air-coal mixture and secondary air flows through the primary air-coal mixture and secondary air ducts and to prolong the residence time in the center recirculation zone under the reduction ability so as to effectively reduce the formation of NOx.

Near-zero maintenance membrane-based integrated purification device for drinking water supply of villages and towns and a method for treating source water thereof

A near-zero maintenance integrated purification device for drinking water supply of villages and towns and a method for treating source water using this device are provided to solve the multi-pollution problems caused by microorganisms, turbidity, iron, manganese, taste and odor, and organic matter in the drinking water sources of villages and towns. The device includes a small-spacing folding plate speed sink regulating water tank, a small diameter tube reactor, a granular active carbon (GAC) slow-speed filter tank, a gravity-driven ultrafiltration membrane tank and an ipsilateral U-turn corridor clean water tank. The near-zero maintenance integrated purification device is applicable to different types of water sources (e.g., groundwater, lake water, reservoir water, spring water, snowmelt water, cellar water and rain water, etc.), and could efficiently remove kinds of pollutants, improving the biological and chemical safety of drinking water.

Method for Simulating Daylight Performance of Buildings Based on Regional Daylight Climate Data

The present invention provides a method for simulating daylight performance of buildings based on regional daylight climate data. The method comprises the steps of: establishing a regional sky luminance distribution database from measured data; mapping sky luminance data to an artificial sky lamp group; using a 3D printing machine to fabricate a scaled physical model based on real parameters of the building to be simulated; and using the scaled physical model in the artificial sky integrated with regional sky luminance distribution data to make the daylight performance simulation. This method can achieve high-precision simulation of the daylight performance of buildings by using regional sky daylight climate data with a highly accurate physical model of the building. 1. A method for simulating daylight performance of a building based on regional daylight climate data , comprising the following steps:1) collecting regional sky luminance data and developing a regional sky luminance distribution database;2) mapping the sky luminance distribution data in the database of step 1) to an artificial sky lamp group;3) using 3D printing technology to fabricate a scaled physical model of the building based on the building geometry and the physical properties of the building materials; and4) using the scaled physical model of step 3) and the artificial sky of step 2) to make the daylight performance simulation.2. The method of claim 1 , wherein the step 1) comprises the steps of:a) determining a sky luminance data acquisition time domain and an acquisition duration according to the purpose of daylight performance simulation, the geographic information and the environmental information;b) dividing a regional sky hemisphere into 145 sky patches;c) using a sky scanner to measure and collect the regional sky luminance data in each sky patch at a time interval of 5 minutes; andd) using a parametric modeling tool to establish the regional sky luminance distribution database based on ...

Device and method for sheet flexible-die forming based on magnetorheological elastomer

A flexible-die forming apparatus includes a piston, a coil, an upper die, a magnetorheological elastomer, and a lower die having a cavity formed thereon. The upper die is arranged to be overlappedly rested on top of the lower die. The piston is movably received in the receiving cavity of the upper die. The magnetorheological elastomer is mounted at a lower portion of the piston, and is received in the receiving cavity of the upper die. The coil is provided and wounded on an exterior surface of the upper die and the lower die.

Indoor monocular navigation method based on cross-sensor transfer learning and system thereof

The present disclosure relates to an indoor monocular navigation method based on cross-sensor transfer learning and a system thereof. Determining an preliminary autonomous navigation model according to simulated laser radar data; acquiring actual single-line laser radar data and monocular camera data of the mobile robot simultaneously in an actual environment; determining the heading angle of the mobile robot according to the actual laser radar data; determining a laser radar monocular vision navigation model, according to the generated heading angle of the mobile robot and the monocular camera data at a the same moment and by using a Resnet18 network and a pre-trained YOLO v3 network; determining a heading angle of the mobile robot at the current moment, according to the acquired monocular camera data and by using the laser radar monocular vision navigation model; performing navigation of the mobile robot.

Method for paralleled SiC power switching devices based on wiring optimization

The disclosure provides a design method for paralleled SiC power switching devices based on wiring optimization which belongs to the field of power electronics technology, aiming at the problem that in the existing scheme of paralleled SiC devices, the optimal performance of SiC devices cannot be presented with paralleled multiple SiC devices due to limitations of the unequal switching losses and transient currents. The design method comprises at least three wiring separation slots being arranged in parallel and in sequence on a PCB circuit board; wherein a power half-bridge composed of two SiC devices is arranged in each wiring separation slot, thereby increasing a parasitic inductance between adjacent power half-bridges. The disclosure can improve the current sharing performance of the switching transient current existing in the application of multiple paralleled SiC devices, so that SiC devices can be applied to high-power and high-current power electronic converters stably and reliably ...

Short-travel nanoscale motion stage and method for measuring thermally-related hysteresis data

A short-travel nanoscale motion stage and a method for measuring thermally-related hysteresis data are provided. A stator unit of a left two-pole electromagnet and stator units of two inchworm motors are fixed on a right side surface of a left foundation frame, and an active unit of the left two-pole electromagnet and actives of the two inchworm motors are fixed on a left side surface of a stage moving component. An active unit of a right two-pole electromagnet is fixed on a right side surface of the stage moving component, while a stator unit of the right two-pole electromagnet is fixed on a left side surface of a right foundation frame. The stage moving component is fixedly mounted on a guide sleeve of an aerostatic guideway. Each of the stator units of the left and right two-pole electromagnets has an eddy current sensor and a hall sensor fixed therein.

Balanced-current circuit structure and parameter design method for bifilar winding coil of wireless power transfer

The disclosure provides a balanced-current circuit structure and a parameter design method for a bifilar winding coil of wireless power transfer. The disclosure relates to the technical field of magnetic coupling wireless power transfer. The circuit includes a bifilar winding coil, a compensation capacitor array and a controlled voltage source array. The bifilar winding coil includes a first coil and a second coil, the compensation capacitor array includes a first compensation capacitor and a second compensation capacitor, and the controlled voltage source array includes a first controlled voltage source and a second controlled voltage source. Compared with the existing centralized series compensation scheme, the scheme proposed by the disclosure can realize the currents in two windings of the bifilar winding coil being basically the same, so as to eliminate the current imbalance problem existing in the traditional compensation mode, thereby fully exerting the current-carrying capacity ...

Self-rotation graphene heat-dissipation device for direct-drive electro-hydrostatic actuator

A self-rotation graphene heat-dissipation device for a direct-drive electro-hydrostatic actuator, that includes inner and outer walls of a shell eccentrically arranged relative to each other, the shell sleeves on an outer side of a self-rotation mechanism. The self-rotation mechanism is arranged on an outer side of a shaft; the shaft is coaxial with the inner wall of the shell and connected with outer and inner end covers. The self-rotation mechanism includes a rotor and blades, the rotor sleeves on the shaft and is connected with the outer and inner end covers. The rotor is slidably connected with the blades, and outer walls of the blades are closely attached to the inner wall of the shell. Graphene heat-dissipation layers are coated on outer walls of all of the shell, blades, the rotor, the inner and outer end covers respectively.

METHOD AND APPARATUS FOR CAPTURING NON-COOPERATIVE TARGET USING SPACE ROBOTIC ARM, AND NON-TRANSITORY STORAGE MEDIUM

Disclosed are a method, a device, an apparatus for capturing a non-cooperative target using a space robotic arm, and a non-transitory storage medium, and relates to the technical field of on-orbit servicing. The method is applied to a space robotic arm with a magnetic capture device as an end actuator. The method includes: establishing a magnetic attractive force model for the magnetic capture device, determining a magnetic attractive force characteristic of the magnetic capture device based on the magnetic attractive force model, determining a capture strategy for the non-cooperative target based on the magnetic attractive force characteristic of the magnetic capture device, capturing the non-cooperative target according to the capture strategy, and determining whether the non-cooperative target is captured based on a preset determination condition.

Energy Consumption Simulation and Evaluation System for Embedded Device

An energy consumption simulation and evaluation system for embedded device in energy consumption evaluation technology for electronic devices, which solves the problem that the energy consumption cannot be simulated under tasks operation condition with the existing systems. The present invention includes a graphical configuration management module for inputting graphical configuration parameters, a device energy consumption model building block for obtaining the AADL description model for software and hardware components through AADL abstract description of software and hardware at system-level, a model transformation module for AADL to GSPN model transformation; and a GSPN simulation module which utilizes QPME tool to simulate GSPN model; selectively loads an external energy-consuming event from the energy-consuming events sequence; and perform energy consumption simulation for the GSPN model in response to the external energy-consuming event by QPME tool to obtain a simulation result of the residual energy and lifetime of the system. 1. An energy consumption simulation and evaluation system for an embedded device , characterized in that: said system comprises a graphical configuration management module , an event generator , a device energy consumption model building block , an AADL to GSPN model transformation module and a GSPN simulation module for device energy consumption model , whereinsaid graphical configuration management module is a graphical parameter configuration and input arrangement for said event generator and said device energy consumption model building block;said device energy consumption model building block is arranged for obtaining an AADL description model of software and hardware components of said embedded system by utilizing an AADL description of software and hardware at system level based on the parameters configuration of said graphical configuration management module;said event generator is arranged for generating an energy-consuming ...

Positioning Method of Rectangular Pin Element Based on Vertex Points

A positioning method of rectangular pin element based on vertex points. The positioning method of rectangular pin element of the present invention solves the problems of weak robustness, low precision, poor versatility and low real-time performance of the on-line positioning algorithm of the patch-type rectangular lead component. The present invention includes: 1: obtain component information of a model; 2: classifying the components of the model into two classes; 3: extract feature descriptors of each vertex point of pin element of the model; 4: obtain a real image of the component and extract feature points; 5: extract an angle between two straight lines where the feature points are located and the positive direction of the X-axis respectively; 6: obtain a rotation angle of the component; 7: obtain an precise feature point position; 8: determine an precise feature point position corresponding to all the vertex points; 9: obtain feature descriptor of the vertex points of the actual component pin; 10: determine a weight value of the vertex points of the component in the model and the vertex points of the actual component corresponding to feature point; 11. Determine the final position of the center of the chip and a precise rotation angle of the chip. The present invention is used in the field of chip surface inspection.

NEAR-ZERO MAINTENANCE MEMBRANE-BASED INTEGRATED PURIFICATION DEVICE FOR DRINKING WATER SUPPLY OF VILLAGES AND TOWNS AND A METHOD FOR TREATING SOURCE WATER THEREOF

A near-zero maintenance integrated purification device for drinking water supply of villages and towns and a method for treating source water using this device are provided to solve the multi-pollution problems caused by microorganisms, turbidity, iron, manganese, taste and odor, and organic matter in the drinking water sources of villages and towns. The device includes a small-spacing folding plate speed sink regulating water tank, a small diameter tube reactor, a granular active carbon (GAC) slow-speed filter tank, a gravity-driven ultrafiltration membrane tank and an ipsilateral U-turn corridor clean water tank. The near-zero maintenance integrated purification device is applicable to different types of water sources (e.g., groundwater, lake water, reservoir water, spring water, snowmelt water, cellar water and rain water, etc.), and could efficiently remove kinds of pollutants, improving the biological and chemical safety of drinking water.

Measurement control system for multi-shaft supported air floatation platform

A measurement control system for a multi-shaft supported air floatation platform, the system comprising a load feedback unit (5), an execution unit (6), a position measurement unit (7), a safety protection unit (8), a controller (9), a rotating motor (10), and a linear light source 11; the load feedback unit comprises M pressure sensors (5-1) and four differential sensors (5-2); the execution unit comprises M servo voice coil motors (6-1) and M servo voice coil motor drivers (6-2); the position measurement unit comprises a plane grating (7-1), M linear gratings (7-2) a linear array CCD (7-3), a tilt sensor (7-4), M electronic levels (7-5), and an indoor GPS (7-6); the safety protection unit comprises 2M proximity sensors (8-1) and M temperature sensors (8-2); and the linear array CCD consists of no few then six CCDs. The system solves the problems of leveling limitations and narrow application range of existing supporting platforms.

Method, medium, and system estimating pose of mobile robots

A method, medium, and system reducing the computational complexity of a Simultaneous Localization And Mapping (SLAM) algorithm that can be applied to mobile robots. A system estimating the pose of a mobile robot with the aid of a particle filter using a plurality of particles includes a sensor which detects a variation in the pose of a mobile robot, a particle filter unit which determines the poses and weights of current particles by applying the detected pose variation to previous particles, and an evolution unit which updates the poses and weights of the current particles by applying an evolution algorithm to the poses and weights of the current particles.

Passively balanced load-adaptive upper-limb exoskeleton

A passively balanced load-adaptive upper limb exoskeleton. An upper arm (A), an elbow (B), a forearm (C), and a hand (D) are arranged sequentially from left to right. An upper arm upper rod (A1) and an upper arm lower rod (A2) each are hinge-connected to an upper arm elbow housing via a bearing. A forearm upper rod (C1) and a forearm lower rod (C2) each are hinge-connected to a forearm elbow housing via a bearing. An upper arm support rod (E) is disposed between an upper arm driving mechanism (A4) and an upper arm elbow assembly (B1). One end of the upper arm support rod is fixedly connected to two upper arm support rod slide blocks (9) in the upper arm driving mechanism, and the other end thereof is hinge-connected to protruding shafts on two sides of an upper arm lead screw nut connection member via bearings. A forearm-upper arm support rod is disposed between a forearm driving mechanism (C4) and a forearm elbow assembly (B2). One end of the forearm-upper arm support rod (K) is fixedly ...

Ultrasonic brazing of aluminum alloy and aluminum matrix composite

A method of ultrasonic brazing metal matrix composite, which forms a reinforced composite bond without filling welding wire with reinforcement or adding alloy element to generate ceramic phase, includes the steps of setting a filler metal; introducing ultrasonic vibration to braze in air; dissolving the base materials, and introducing ultrasonic wave again. The method performs the aluminum brazing at low temperature. The periodic time of brazing is shorter and the cost is lower than the conventional brazing methods. The strength, service temperature and dimensional stability of the joint are close to the base article.

Method for Efficiently Preparing Ferrate Based on Nascent Interfacial Activity

A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days. 1: A high efficiency preparation method for ferrate based on activity in nascent state interface , characterized in that , the high efficiency preparation method for ferrate based on activity in nascent state interface comprises the steps of:(a) adding iron salt to a first alkaline solution with a pH of 5˜9 for hydrolysis and producing an iron solution in nascent state with an equivalent concentration of iron of 0.0001˜1 mol/L;(b) measuring and obtaining 5˜100 mL of the iron solution in nascent state obtained from step (a), adding oxidizing agent based on a molar ratio of the iron in nascent state and the oxidizing agent at 1:0.1˜20, and allowing to mix to obtain a mixture;(c) under the condition of 5° C.˜60° C., adding 5˜100 mL the second alkaline solution with a concentration of 0.1˜16 mol/L or adding 0.2˜70 g alkaline granules to the mixture obtained from the step (b); stirring and mixing for 0.1˜30 min; allowing the solution to turn purplish black color completely and then process solid-liquid separation by centrifugation or filtration to obtain a liquid; and(d) adding stabilizing agent based on a molar ratio of the equivalent concentration of iron in the liquid obtained from the step (c) and the stabilizing agent of 1:0.1˜10 to obtain a ferrate solution.2: The high efficiency preparation method for ferrate based on activity in nascent state interface according to claim 1 , characterized in that claim 1 , in ...

Large-scale high-speed rotary equipment measuring and intelligent learning assembly method and device based on vector minimization of geometry center, mass center, center of gravity and center of inertia

The present invention provides a large-scale high-speed rotary equipment measuring and intelligent learning assembly method and device based on vector minimization geometry center, mass center, the center of gravity and the center of inertia, belonging to the technical field of mechanical assembly. The method includes the steps of establishing a four-parameter circular profile measuring model for a single stage of rotor, simplifying the established four-parameter circular profile measuring model for the single stage of rotor, and establishing a four-target optimization model of the geometry center, mass center, the center of gravity and the center of inertia of multiple stages of rotors based on the angular orientation mounting position of each stage of rotor. The device include a base, an air flotation shaft system, an aligning and tilt regulating workbench, precise force sensors, a static balance measuring platform, an upright column, a lower transverse measuring rod, a lower telescopic ...

Accurate springback compensation method for hydroforming component based on liquid volume control

An accurate springback compensation method for sheet hydroforming component based on liquid volume control is related to a springback compensation method for curved surface part hydroformed with liquid as a punch during deep drawing process. According to the difference between a theoretical volume and a post-springback volume of a target part, an elastic deformation of the die is induced by liquid pressure, the die deformation amount is controlled to be equal to the springback amount. The accurate springback compensation control of a curved surface part is realized to overcome the problems of thickness or mechanical properties variations for different batches of sheets, and the manufacture error of the mould is considered to meet the design requirements. The liquid volume compensation is on-line and in-situ performed without mould re-machining. The advantages is good precision, simple process, high efficiency, short cycle and low cost.

Direct growth methods for preparing diamond-assisted heat-dissipation silicon carbide substrates of GaN-HEMTs

Direct growth methods for preparing diamond-assisted heat-dissipation silicon carbide substrates of GaN-HEMTs are disclosed. In an embodiment, the direct growth method includes the following steps: (1) etching holes in a surface of a silicon carbide substrate to produce a silicon carbide wafer; (2) ultrasonic cleaning the produced silicon carbide wafer; (3) establishing an auxiliary nucleation point on a surface of the silicon carbide wafer; (4) depositing a diamond layer; (5) removing the portion of the diamond layer on the upper surface while retaining the portion of the diamond layer in the holes; (6) ultrasonic cleaning; and (7) depositing diamond in the holes on the silicon carbide wafer until the holes are fully filled.

Micro Focal-Length Collimation Based Micro-Cavity Measuring Method And Detecting Equipment Thereof

A micro-cavity measuring method and equipment based on micro focal-length collimation are provided. The equipment can be used to measure irregular micro-cavities and “sub-macro” micro-cavities. Wherein a cylindrical or spherical lens with micro focal-length is combined with a fiber probe() to form a collimating and imaging optical system of a point light source(), and the collimating and imaging optical system transforms the two or three dimensional movement of the fiber probe() into a change in image ultra-highly sensitively. A lot of advantages are obtained, i.e., micro measuring force, high aspect ratio, easy miniaturization, high resolution, simple construction and high speed. 17-. (canceled)8. A micro-cavity measuring method based on micro focal-length collimation comprising: a fiber probe comprising a probe ball, a fiber stem cantilevered at one end and with the probe ball mounted on the other end, and a collimation lens that is cylindrical or spherical and fixed to the middle of the fiber stem, the collimation lens having a micro focal length;', 'a point source; and', 'an optoelectronic detector that acquires images of the point source;, 'providing a micro-cavity detector comprisingwherein the positions of the point source, the fiber probe and the optoelectronic detector are located relatively to define a collimating and imaging optical system that transforms movements of the fiber stem into changes in the images acquired by the optoelectronic detector;using the optoelectronic detector to acquire images of the point source;introducing the probe ball into a micro-cavity work piece and moving the micro-cavity detector using a coordinate measuring machine (CMM) until the probe ball touches the micro-cavity work piece;acquiring coordinates of the points touched by the probe ball; andgenerating measuring results using the coordinates;wherein the images of the point source and the coordinates are acquired in real time and are processed by a computer program.9. ...

Ultraprecision Non-Contact Three-Dimensional Probing System Based On Spherical Capacitive Plate

An ultraprecision non-contact three-dimensional probing system based on a spherical capacitive plate has a probe () which comprises a spherical probing head (), a stylus pipe (), an active shielding pipe (), a signal conducting rod (), an insulating element (), a stylus holder () and a probe body (). The stylus pipe (), the active shielding pipe () and the signal conducting rod () are coaxially assembled, and they are insulated against each other with the insulating element (). The spherical probing head () is mounted at one end of the insulating element (), and it has a spherical capacitive plate over its surface. The capacitive signal coming from the spherical capacitive plate is outputted through the signal conducting rod (). The active shielding pipe () is driven by the signal converting and processing circuit () of the probing system to maintain equipotential with the signal conducting rod (), and so the influence of parasitic capacitance and spatial electromagnetic interference can be eliminated. 1. An ultraprecision non-contact three-dimensional probing system based on a spherical capacitive plate comprising:a probe; anda signal converting and processing circuit; a spherical probing head having a spherical capacitive plate over its surface so that a micro gap between the spherical capacitive plate and a part being measured is converted to a capacitive signal;', 'a conductive rod which is electrically connected to the spherical capacitive plate for conducting said capacitive signal to the signal converting and processing circuit;', 'an active shielding pipe surrounding the signal conducting rod, insulated against the spherical capacitive plate and driven by an equipotential driving circuit in the signal converting and processing circuit to maintain equipotential with the signal conducting rod;', 'a stylus pipe surrounding the active shielding pipe, insulated against the spherical capacitive plate and earthed;', 'an insulating element on one end of which the ...

HYBRID LIPID COMPOUNDS BASED ON PENTAERYTHRITOL, INTERMEDIATES, PREPARATION METHODS AND USE THEREOF

This invention relates to a novel class of hybrid lipid compound based on pentaerythritol, their intermediates, preparation methods and uses thereof. Different kinds of functional groups such as alkyl chain, siloxane group, azobenzene, porphyrins, cholesterol, benzene ring and carboxyl were introduced into the four hydroxyl groups of pentaerythritol through chemical reaction to obtain the final hybrid lipid compounds based on pentaerythritol. Cerasomes prepared from such lipids have uniform size, silicate network surface, good stability and biocompatibility, and the leakage of drugs is not easy. The present liposome can be used as functional materials such as drugs or drug carriers, or used for optical storage and molecular devices, simulation, design and synthesis of artificial systems, nano-composite membrane materials and the removal of organic pollutants, etc., in addition, the preparation method of the present invention is simple, and it is easy for industrial production. 151-. (canceled)54. The hybrid lipid compound of claim 53 , wherein when Yis attached at the 2-position to the azobenzene unit claim 53 , Yis —H or halogenated group; when Yis attached at the 3-position of the azobenzene unit claim 53 , Yis one among the group consisting of —H claim 53 , —CHand CHO—.67. Use of the hybrid lipid compound based on pentaerythritol of as light-control materials for controlling drug release from liposome.68. Use of the hybrid lipid compound based on pentaerythritol of in the preparation of the relevant liposome which is used as drug or drug carriers for inflammatory diseases claim 56 , neurological diseases claim 56 , atherosclerosis and cancer treatment.69. Use of the hybrid lipid compound based on pentaerythritol in in the preparation of the relevant liposome which is used as functional materials for optical storage and molecular devices.70. Use of the hybrid lipid compound based on pentaerythritol of in the preparation of the relevant liposome which is used as ...

Advanced Treatment Method of Feed Water by Combination of Metal Zinc and Ozone

An advanced treatment method of feed water by combination of metal zinc and ozone is provided. The advanced treatment method of feed water comprises putting metal zinc into an ozone contact reactor, adding water to be treated into the reactor at a flow rate of 1-50 m/h, at the same time, introducing ozone into the water such that the ozone, the metal zinc and the water can be contacted with each other fully. The hydraulic retention time of the water to be treated in the reactor is 1-200 min. The amount of the ozone which is introduced into the water to be treated is 0.1-100 mg per liter water. During the water treatment process of the invention, the metal ions cannot be lost, the secondary pollution cannot be caused, and the preparation technology is simple with low cost and good treatment effect. 1. An advanced treatment method for water by a combination of metal zinc and ozone , comprising the steps of: placing metal zinc into an ozone contact reactor; and introducing water subject to treatment into the ozone contact reactor at a flow rate of 1˜50 m/h while at the same introducing ozone to the water subject to treatment so that the ozone , the metal zinc and the water subject to treatment are contacted adequately , wherein a hydraulic retention time of the water subject to treatment in the ozone contact reactor is 1˜200 min and an amount of the ozone which is introduced into the water subject to treatment is 0.1˜100 mg per liter of the water subject to treatment.2. The advanced treatment method for water by a combination of metal zinc and ozone claim 1 , as recited in claim 1 , wherein the hydraulic retention time of the water subject to treatment in the ozone contact reactor is 30˜120 min.3. The advanced treatment method for water by a combination of metal zinc and ozone claim 1 , as recited in claim 1 , wherein the metal zinc has a strip-like structure having a width of 1 cm˜10 cm and a thickness of 1 mm˜1 cm claim 1 , wherein an amount of metal zinc is 10˜2000 ...

Fenton and Fenton-Like System Hardening Agent and Usage Thereof

Fenton and Fenton-like system enhancing agent and the usage thereof are provided. It relates to a water treatment enhancer (enhancing agent) and the usage thereof. It widens water pH range of Fenton and Fenton-like system reaction. It reduces amount of Fe required for Fenton reaction. It increases rate of Fenton-like reaction. The enhancing agent is selected from sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine hydrochloride, hydroxylamine perchlorate, hydroxylamine sulfate, hydrazine, N,N-diethylhydroxylamine, amino ethanolamine, hydroxylamine solution or N,N,N′,N′-tetrasubstituted p-phenylenediamine. The method of use of enhancing agent comprises the steps of: adding Fenton or Fenton-like system enhancing agent, an agent for enhancement and hydrogen peroxide into water subject to treatment; and mixing and allowing reaction. The enhancing agent can increase the rate of reaction for the water treatment and reduce the dosage of the agent for enhancement. 1. A Fenton and Fenton-like system enhancing agent , characterized in that , the Fenton and Fenton-like system enhancing agent is selected from the group consisting of: sodium sulfite , lithium sulfite , potassium sulfite , magnesium sulfite , calcium sulfite , hydroxylamine hydrochloride , hydroxylamine perchlorate , hydroxylamine sulfate , hydrazine , N-N-diethylhydroxylamine , amino ethanolamine , hydroxylamine solution and N ,N ,N′ ,N′-tetrasubstituted p-phenylenediamine.2. The Fenton and Fenton-like system enhancing agent claim 1 , as recited in claim 1 , characterized in that claim 1 , wherein the Fenton and Fenton-like system enhancing agent further comprises one or more component selected from the group consisting of: ammonium sulfite claim 1 , sulfite claim 1 , sodium metabisulfite claim 1 , lithium metabisulfite claim 1 , potassium metabisulfite claim 1 , magnesium metabisulfite claim 1 , calcium metabisulfite claim 1 , ammonium metabisulfite claim 1 , ...

PHOTOELECTRIC AUTOCOLLIMATION METHOD AND APPARATUS BASED ON BEAM DRIFT COMPENSATION

Photoelectric autocollimation methods and apparatuses based on beam drift compensation are provided. The methods and apparatuses can be used to achieve a high autocollimation angle measurement accuracy. The apparatuses includes an autocollimator, a measurement mirror (), a beam drift monitoring and separating unit, a beam steering device (), and a data processing controller (). The beam drift monitoring and separating unit generate a reference beam with the same drift as the measurement beam. The measurement beam carries both angular deflection information of the measurement mirror and the angular beam drift information, while the reference beam carries only the angular beam drift information. The data processing controller gives out a signal to the beam steering device in real-time according to the magnitude of drift of the reference beam, to compensate the drift of the measurement beam. 1. A photoelectric autocollimation method based on beam drift compensation that employs a reference mirror or a corner reflector to reflect the reference beam , the method comprising:forming a collimated beam by passing a polarized beam emitted from a laser source through a reticle, a polarization-insensitive beamsplitter and a collimating lens successively;reflecting the collimated beam by a beam steering device into a first polarizing beamsplitter, where the collimated beam is split into a polarized transmitted beam and a polarized reflected beam having polarization states mutually perpendicular to each other;forming a measurement beam by reflecting the polarized transmitted beam by a measurement mirror that carries the two-dimensional angular deflection information of the measurement mirror and the angular beam drift information in the measurement process;transmitting the measurement beam through the first polarizing beamsplitter again and then returning the measurement beam reversely to the polarization-insensitive beamsplitter where the measurement beam is split into a ...

Water Treatment Agent for Removing Contaminant Through Oxidation with High-Activity Intermediate-State Pentavalent Manganese

A water treatment agent for removing contaminants through oxidation with high-activity intermediate-state pentavalent manganese consists of a manganese-containing compound, a complexing agent, and a persulfate, wherein the manganese-containing compound is bivalent manganese ions, permanganate or manganese dioxide. The molar ratio of the bivalent manganese ions, the ligand, and the persulfate is 1:1-50:1-1000. The agent removes contaminants through oxidation with high-activity intermediate-state pentavalent manganese, and has the advantages of high oxidizing ability, being capable of fast removing organic contaminants in water, and having no toxic and harmful substance produced.

Water Treatment Method by Catalyzing Ozone with a Persulfate

A water treatment method by catalyzing ozone with a persulfate comprises the following steps: introducing the ozone into an ozone contact reactor filled with water to be treated; at the same time putting the persulfate into the reactor, wherein a stirring state is kept in the water treatment process. The method solves the problems of difficulty in the ionization of hydrogen peroxide, low capability in inducing the decomposition of the ozone, high hydrogen peroxide residues and inconvenience of hydrogen peroxide transportation and storage existing in the conventional water treatment method for catalyzing the ozone by using the hydrogen peroxide. Hydroxyl radicals and sulfate free radicals with strong oxidizing properties, which are generated by catalyzing ozone with the persulfate, are oxidized to remove pollution, so that the method has the advantages of high catalytic capability, high oxidative degradation efficiency, wide pH application range, a small amount of catalyst residues, convenience of operation and the like, and can be applied in mass production. 1. A water treatment process by catalyzing ozone with a persulfate , characterized in that: the water treatment process by catalyzing ozone with a persulfate comprises the steps of: introducing ozone into an ozone contact reactor in which the ozone contact reactor is filled with water subject to treatment and adding persulfate into the ozone contact reactor simultaneously , wherein an initial concentration of ozone is 0.1˜40 mg/L and a molar ratio of persulfate to ozone is 1:0.1˜10 , then the water treatment process is complete , wherein a hydraulic retention time of the water subject to treatment in the ozone contact reactor is 5˜60 min , and the water subject to treatment is kept at a stirring condition during the water treatment process , wherein the water subject to treatment is polluted water , secondary effluent from wastewater treatment plant , source water or filtered water.2. The water treatment process ...

Real Time Birefringent Imaging Spectrometer Based on Differential Structure

A real-time birefringent imaging spectrometer based on differential structure is provided. A polarization beam splitter to add an imaging branch is set. Meanwhile, the structure alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. Common-mode error is intensively restrained due to the differential structure, and 50% of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.

ULTRA-LONG SUBWAVELENGTH GRATING BASED OPTICAL ANTENNA FOR OPTICAL PHASED ARRAY

An ultra-long sub-wavelength grating as an optical antenna for optical phased arrays includes a top structure and a bottom structure which are vertically stacked. The bottom structure is made of a material with a refractive index lower than a refractive index of the top structure. The top structure is made of a material with a refractive index higher than that of the bottom structure. A strip waveguide is disposed in the middle of the top structure. subwavelength blocks are disposed periodically on two sides of the straight strip waveguides. The invention has the following beneficial effects. The structure could increase the effective length of the grating; uniform near field distribution can be achieved by controlling the positions of the subwavelength blocks. The structure is simpler with lower fabrication requirements and lower cost. 1. An ultra-long subwavelength grating as an optical antenna for optical phased array , comprising a top structure and a bottom structure which are vertically stacked ,wherein a refractive index of the bottom structure is lower than a refractive index of the top structure,wherein a strip waveguide is formed in a middle of the top structure, and subwavelength blocks are disposed on two sides of the strip waveguide and the subwavelength blocks are arrayed in a direction along the strip waveguide to form a grating structure.2. The ultra-long subwavelength grating as the optical antenna for the optical phased array according to claim 1 , wherein a thickness of the strip waveguide and thicknesses of the subwavelength blocks are the same.3. The ultra-long subwavelength grating as the optical antenna for the optical phased array according to claim 1 , wherein a width of the strip waveguide is smaller than 1 μm.4. The ultra-long subwavelength grating as the optical antenna for the optical phased array according to claim 1 , wherein a distance between edges of the strip waveguide and edges of the subwavelength blocks is smaller than 1 μm. ...

Superpixel classification method based on semi-supervised k-svd and multiscale sparse representation

The present invention discloses a superpixel classification method based on semi-supervised K-SVD and multiscale sparse representation. The method includes carrying out semi-supervised K-SVD dictionary learning on the training samples of a hyperspectral image; using the training samples and the overcomplete dictionary as the input to obtain the multiscale sparse solution of superpixels; and using the obtained sparse representation coefficient matrix and overcomplete dictionary to obtain the result of superpixel classification by residual method and superpixel voting mechanism. The proposing of the present invention is of great significance to solving the problem of salt and pepper noise and the problem of high dimension and small samples in the field of hyperspectral image classification, as well as the problem of how to effectively use space information in classification algorithm based on sparse representation.

Laser cleaning equipment and cleaning method for shaft component

Laser cleaning equipment and a cleaning method for a shaft component are provided. The equipment includes: a supporting base assembly; two driving wheel structures on the supporting base assembly, driving wheels of each of which is configured for being close to or away from each other, and the shaft component to be cleaned is placed between the two driving wheel structures; a friction wheel structure that is tangent to driving wheel structure(s) and uses a friction force thereof to drive driving wheel structure(s) to rotate; a connection shaft assembly that coaxially passes through the friction wheel structure; a power driving mechanism, one end of which that faces toward the connection shaft assembly is in drive connection with the connection shaft assembly and is configured to drive the connection shaft assembly to rotate; and a laser cleaning mechanism configured for performing laser cleaning on the shaft component to be cleaned.

FORMING DEVICE AND METHOD FOR LARGE THIN-WALLED PART WITH CURVED SURFACE

The present invention discloses a forming device for a large thin-walled part with a curved surface, which includes a punch, a blank holder, a die, a lower die plate, a first annular sleeve and second annular sleeves. The first annular sleeve is connected with first driving oil cylinders. An inner diameter of the die is greater than an outer diameter of the punch. The first annular sleeve is arranged in a gap between the punch and the die. The second annular sleeve is arranged at the bottom of the punch. The first annular sleeve is arranged outside the second annular sleeve. The second annular sleeve is connected with second driving oil cylinders. The first driving oil cylinders and the second driving oil cylinders are connected with a hydraulic system. 1. A forming device for a large thin-walled part with a curved surface , comprising a punch a blank holder , a die , a lower die plate , a first annular sleeve and second annular sleeves , wherein the punch and the blank holder can be connected with a press , and the press can drive the punch and the blank holder to move up and down; the blank holder is arranged at the top of the die , the lower die plate is arranged at the bottom of the die , and the first annular sleeve is arranged in a cavity of the die; the first annular sleeve is connected with first driving oil cylinders , and the first driving oil cylinders can drive the first annular sleeve to move up and down; an inner diameter of the die is greater than an outer diameter of the punch; the first annular sleeve is arranged in an gap between the punch and the die; the second annular sleeve is arranged at the bottom of the punch; the first annular sleeve is arranged outside the second annular sleeve; the second annular sleeve is connected with second driving oil cylinders , and the second driving oil cylinders can drive the second annular sleeve to move up and down; the first driving oil cylinders and the second driving oil cylinders are connected with a ...

Method for preparing high-valence iron salt

A method for preparing high-valence iron salt; the present invention relates to a method for preparing a ferrate compound, for solving the technical problems of the complex operating process, the low yield, and the low purity of ferrate products after purification in existing methods for preparing potassium ferrate. The preparation method comprises: 1. weighing solid potassium hydroxide; 2. adding the solid potassium hydroxide to a sodium hypochlorite solution to obtain a hypochlorite solution; 3. adding iron salt to the hypochlorite solution to obtain a potassium ferrate solution; 4. adding the potassium ferrate solution to a cooled potassium hydroxide solution to obtain a solid-liquid mixture; 5. filtering the solid-liquid mixture of step 4; and 6. rinsing the solid-phase substance. The present invention has safe operation, is simple, quick, energy-saving, and easy to control, is suitable for immediate use, and the obtained product can be stored stably; the ferrate yield of the present method is 60-95% and the purity of the produced potassium ferrate solid is over 95%.

Poly-Phase Reluctance Electric Motor with Transverse Magnetic Flux

Disclosed is a poly-phase reluctance electric motor with transverse magnetic flux, which electric motor is composed of a stator and a rotor. The stator is composed of a housing () and a number m of phase armature units which are arranged within the housing () along the axial direction successively, with each of the phase armature units being staggered at an electrical angle of 360°/m along the circumferential direction. Each phase armature unit is composed of a unit armature iron core, an armature coil () and permanent magnets (), with the unit armature iron core being composed of a first annular iron core segment (), a second annular iron core segment () and a third annular iron core segment (). The armature coil () is embedded within an annular space formed among the first to the third annular iron core segments (). The permanent magnets () are fixedly arranged on the inner surfaces of the first and the third annular iron core segments () along the circumferential direction in a manner of the N pole and the S pole spaced successively. The pole distance τm between every two adjacent permanent magnets () on the same annular iron core segment and the tooth distance τp between the rotor teeth () arranged along the circumferential direction fulfil 2τm=τp. The electric motor eliminates the mutual inductance between phases, improving the precision with which the current and electromagnetic torque of the electric motor can be controlled and the dynamic characteristics of the system, and improving the reliability and safety of the motor as a result of the permanent magnets () being located on the stator. 145544511236781768768682233633836875. A multi-phase reluctance electric motor with transverse magnetic flux , characterized in that: said electric motor comprises a stator and a rotor; wherein a gas partition channel is defined between said stator and said rotor; wherein said rotor comprises a rotor frame unit () and a plurality of rotor teeth (); wherein said plurality of ...

Magnetic Field-Modulated Transverse Flux Multiphase Permanent Magnet Motor

A magnetic field-modulated transverse flux multiphase permanent magnet motor consisting of a stator and a rotor. A number m of phase armature units are arranged in a row along the axial direction within a motor housing (); each successive phase armature unit is offset in the circumferential direction by an electrical angle of 360°/m; the armature coil () is embedded within an annular cavity between the first to the third stator iron core tooth segments (); the external circumferential surfaces of the first and the third rotor iron core tooth segments () are respectively grooved in the axial direction with k/2 permanent magnet slots; the rotor permanent magnet slot on the first rotor iron core tooth segment () is axially offset from the rotor permanent magnet slot on the third rotor iron core tooth segment () by one-half the rotor tooth pitch; the direction of magnetization of the rotor permanent magnets () is identical. The present motor features high reliability and high security, high fault tolerance, structural simplicity, low costs, high torque density, good dynamic characteristics and ease of modularization. 11234534543543535345234511111119678678768768686786374856783456868686899999. A magnetic field modulated transverse flux multiphase permanent magnet motor , comprising a stator and a rotor , wherein said stator and said rotor are spaced apart from each other to form an air gap therebetween , said stator comprising a stator casing () and m armature units , where m is a number of phases of said magnetic field modulated transverse flux multiphase permanent magnet motor , and m≧3 , each of said armature units comprising an armature core and an armature winding () , wherein each of said armature cores comprises n stator core teeth , wherein n is an integer , each of said stator core teeth having a first stator teeth section () , a second stator teeth section () , and a third stator teeth section () , wherein each of said first stator teeth section , said second ...

Virtual voltage injection-based speed sensor-less driving control method for induction motor

A virtual voltage injection-based speed sensor-less driving control method for an induction motor is provided. First, a virtual voltage signal is injected into a motor flux linkage and rotating speed observer so that there is a difference between an input of the motor flux linkage and rotating speed observer and a command input of the motor. Then, based on any type of the motor flux linkage and rotating speed observer, a motor flux linkage rotation angle and a motor rotor speed are estimated, and the induction motor is driven to run normally with a certain control strategy (such as vector control). Then, based on a signal designed according to this method and injected only into the motor flux linkage and rotating speed observer, the induction motor driven by a speed sensor-less control system for the induction motor may be ensured to output 150% of a rated torque when running at a motor low synchronous rotating speed and a motor zero synchronous rotating speed, and the stability thereof may be kept for a long time.

PREPARATION METHOD OF RENEWABLE EPOXY ASPHALT MATERIAL AND REGENERATION PROCESS THEREOF

Disclosed is a preparation method of a renewable epoxy asphalt material and a regeneration process. The preparation method comprises: I Vanillin and 4-aminophenol are reacted in water with stirring to obtain VAN-AP; II. VAN-AP is mixed with epichlorohydrin, to which tetrabutylammonium bromide is added and heated at 80 to 90° C. for reaction; sodium hydroxide solution is then added dropwise for reaction; the mixture is concentrated to obtain GE-VAN-AP; III. Preheated asphalt is mixed with a polyetheramine curing agent and a polyetheramine accelerator to form component A; GE-VAN-AP is melted as component B; the component A is evenly mixed with the component B to obtain a renewable epoxy asphalt material. During the regeneration, the resin phase structure in the epoxy asphalt is gradually depolymerized, whereby asphalt regenerant is used to restore the properties of the aged asphalt phase and reshape the resin phase structure to complete the regeneration. 1. A preparation method of a renewable epoxy asphalt material , wherein the preparation method comprises the following steps:I. reacting vanillin and 4-aminophenol in water via stirring in a molar ratio of 1:1 to 1:3, and filtering to collect the solid phase powder, which is washed and dried to obtain VAN-AP;II. mixing the VAN-AP with epichlorohydrin in a molar ratio of 1:25 to 1:30, to which tetrabutylammonium bromide is added as a phase transfer catalyst to obtain a mixed reactant, which is heated at 80° C. to 90° C. for 2 hours to 3 hours; adding sodium hydroxide solution dropwise, and reacting for 1.5 to 2 hours; mixing the mixture with ethyl acetate, filtering, drying, and concentrating to obtain GE-VAN-AP; and{'sub': '2', '#text': 'III. mixing preheated asphalt with a polyetheramine curing agent and a polyetheramine accelerator to form component A; the GE-VAN-AP is melted at 110° C. to 120° C. as component B; the component A is mixed with the component B in a molar ratio of —NHin the polyetheramine to the GE-VAN ...

QUICK RESPONSIVE, SHAPE MEMORY THERMOSET POLYIMIDE AND PREPARATION METHOD THEREOF

A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation. 1. A method for preparing a quick responsive , high-performance , thermoset shape memory polyimide , having the following steps of:I. preparation of a diamine solution:weighting out 1,3-bis(3-aminophenoxy)benzene monomer and charging it into a three-neck flask containing N,N-dimethylacetamide solvent, then stirring the contents in the flask under the protection of dry nitrogen at room temperature until the 1,3-bis-(3-aminophenoxy)benzene monomer is completely dissolved, so as to obtain a diamine solution;wherein the molar ratio by volume between N,N-dimethylacetamide solvent and 1,3-bis(3-aminophenoxy)benzene monomer is 1 mL: (0.2-0.33) mmoL;II. preparation of an anhydride-terminated high molecular weight polyamic acid: adding bis-phenol A type diether-dianhydride monomer for 4-6 times to the diamine solution obtained in step I, then stirring the resultant for 16-20 hours at a speed of 200-300 r/min at room temperature to obtain the anhydride-terminated high molecular weight polyamic acid; wherein the amount of each addition of the bisphenol A ...

METHOD AND SYSTEM FOR MEASURING CONTENT OF DISSOLVED ORGANIC HALOGENS IN WATER

A method and system for measuring the content of dissolved organic halide in water. The method includes separating dissolved inorganic halides and dissolved organic halides in water using an electrodialysis technique (S), which may completely separate the dissolved organic halides and the dissolved inorganic halides, avoid the use of activated carbon and adsorption columns, simplify steps and improve efficiency. The method converts the separated dissolved organic halides into dissolved inorganic halides using a photocatalysis technique (S), which does not need a special high-temperature combustion device, active carbon and catalysts, and is simple and easy to be performed at room temperature in more environmentally friendly mode. The method also includes analyzing the converted dissolved inorganic halides using a device with an ion analysis function (S) to analyze and measure a total content index of the dissolved organic halides and an individual content index of each of the dissolved organic halides (fluorine, chlorine, bromine and iodine) in water to be measured. 1. A method for content measurement of dissolved organic halide in water , the method comprising:separating a dissolved inorganic halide and a dissolved organic halide in a water sample to be measured using an electrodialysis technique;converting the separated dissolved organic halide into a dissolved inorganic halide; andmeasuring a content of the dissolved organic halide in the water sample to be measured by analyzing the converted dissolved inorganic halide using an ion analysis instrument.2. The method of claim 1 , wherein the separating the dissolved inorganic halide and the dissolved organic halide in the water sample to be measured using the electrodialysis technique includes:providing an electrodialyser including a first concentration chamber, a dilution chamber, and a second concentration chamber arranged in order;injecting an inorganic electrolyte solution without halogens into the first ...

Measurement Control System for Multi-Shaft Supported Air Floatation Platform

A measurement control system for a multi-shaft supported air floatation platform, the system comprising a load feedback unit (), an execution unit (), a position measurement unit (), a safety protection unit (), a controller (), a rotating motor (), and a linear light source ; the load feedback unit comprises M pressure sensors (-) and four differential sensors (-); the execution unit comprises M servo voice coil motors (-) and M servo voice coil motor drivers (-); the position measurement unit comprises a plane grating (-), M linear gratings (-) a linear array CCD (-), a tilt sensor (-), M electronic levels (-), and an indoor GPS (-); the safety protection unit comprises 2M proximity sensors (-) and M temperature sensors (-); and the linear array CCD consists of no few then six CCDs. The system solves the problems of leveling limitations and narrow application range of existing supporting platforms. 11234. A measurement and control system for multi-axis supported floatation platform , characterized in that , the system processes measurement and control of the multi-axis supported floatation platform , the multi-axis floatation platform comprises a load platform () , M number of support legs () , M number of floatation cylinders () and M number of gas bearings () , where M is 3 , 4 , 5 , 6 , 7 or 8 ,{'b': 1', '1', '2', '2', '1, 'the load platform () is a circular platform, the load platform () is supported by the M number of support legs (), M number of connecting points are defined at the position where the M number of support legs () and a bottom surface of the load platform are connected and form a regular M-polygon,'}{'b': 2', '3', '3', '4, 'each of the support leg () has one end connected to one floatation cylinder (), each of the floatation cylinder () has a bottom end connected to one gas bearing () through floatation ball bearing,'}{'b': 5', '6', '7', '8', '9', '10', '11, 'the measurement and control system comprises a load feedback unit (), an execution ...

SHORT-TRAVEL NANOSCALE MOTION STAGE AND METHOD FOR MEASURING THERMALLY-RELATED HYSTERESIS DATA

A short-travel nanoscale motion stage and a method for measuring thermally-related hysteresis data are provided. A stator unit of a left two-pole electromagnet and stator units of two inchworm motors are fixed on a right side surface of a left foundation frame, and an active unit of the left two-pole electromagnet and actives of the two inchworm motors are fixed on a left side surface of a stage moving component. An active unit of a right two-pole electromagnet is fixed on a right side surface of the stage moving component, while a stator unit of the right two-pole electromagnet is fixed on a left side surface of a right foundation frame. The stage moving component is fixedly mounted on a guide sleeve of an aerostatic guideway. Each of the stator units of the left and right two-pole electromagnets has an eddy current sensor and a hall sensor fixed therein. 14817. A short-travel nanoscale motion stage , comprising two foundation frames , a stage moving component () , two inchworm motors , two two-pole electromagnets , two measuring systems , and an aerostatic guideway () , wherein the two foundation frames refer to a left foundation frame () and a right foundation frame (); the two two-pole electromagnets refer to a left two-pole electromagnet and a right two-pole electromagnet; each of the two measuring systems comprises an eddy current sensor and a hall sensor;{'b': 11', '2', '1', '10', '3', '4', '5', '4', '6', '7', '4', '9', '8', '4', '13', '8', '11', '6', '4, 'a stator unit () of the left two-pole electromagnet and stator units () of the two inchworm motors are fixed on a right side surface of the left foundation frame (), and an active unit () of the left two-pole electromagnet and actives () of the two inchworm motors are fixed on a left side surface of the stage moving component (); an active unit () of the right two-pole electromagnet is fixed on a right side surface of the stage moving component (), and a stator unit () of the right two-pole electromagnet is ...

PRECISE COORDINATION CONTROL SYSTEM AND METHOD FOR TWO MOTION STAGES

A precise coordination control system includes a trajectory generator, a closed-loop system of a first motion stage, and a closed-loop system of a second motion stage. The precise coordination control method includes: initializing an iteration experiment count j to 1 and feedforward control signals of two motion stages to 0; performing the jth iteration experiment and running the coordination control system; updating the feedforward control signals of the two motion stages; and continuing next iteration and stopping the iteration experiment until a coordination motion error meets a precision requirement. Both of respective servo errors of two motion stages and the coordination motion error of the two motion stages can be reduced. A learning coefficient is designed by using an adaptive method to provide an increased convergence rate, high robustness to external random disturbances, and good anti-disturbance capability. 2. The control system according to claim 1 , wherein the model Pof the first motion stage is obtained by modeling an actuator claim 1 , a driven object and a measuring sensor of the first motion stage claim 1 , and the model Pof the second motion stage is obtained by modeling an actuator claim 1 , a driven object and a measuring sensor of the second motion stage.3. The control system according to claim 1 , wherein each of the feedback controller Cand the feedback controller Cis formed by proportional-integral-derivative (PID) elements cascaded with a low pass filter or by proportional-integral (PI) elements cascaded with a first-order advance controller.7. The method according to claim 6 , wherein the phase margin is defined as τ=0˜10. This application claims priority to Chinese Patent Application No. 202110225803.7 with a filing date of Mar. 1, 2021. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference.The present disclosure relates to a control system and method, in ...

System and Method of Reading Environment Sound Enhancement Based on Image Processing and Semantic Analysis

The disclosure relates to a system and a method for disposing background music and sound effects based on image processing and semantic analysis. The method includes determining the environment and emotional attributes of a text semantics in a reading page by analyzing and processing an acquired reading page image, and selecting music and sound material to synthesize reading background music and sound effects according to the text semantics, so as to achieve sound enhancement in the reading environment. The system includes an image acquisition device for acquiring a reading image of a user, and a processing device having an operation unit for performing the method.

MULTI-PURPOSE PLANET ROVER

A multi-purpose planet planetary exploration rover is provided in this invention, which relates to the field of planet exploration. The multi-purpose planetary exploration rover includes a case body, mounted with a first wheel at left and right sides respectively; and a cantilever, having a front end connected to the case body, a rear end of the cantilever being mounted with a second wheel; wherein the cantilever is rotated or fixed relative to the case body, the second wheel is steered relative to the cantilever, and the first wheel and the second wheel are used to drive the multi-purpose planetary exploration rover. Compared with the prior art, the multi-purpose planetary exploration rover of this invention can effectively explore special geographic locations such as cliffs, volcanic craters, craters and lava caves on alien planets. 1. A multi-purpose planetary exploration rover , comprising:a case body, mounted with a first wheel at left and right sides respectively; anda cantilever, having a front end connected to the case body, a rear end of the cantilever being mounted with a second wheel;wherein the cantilever is rotated or fixed relative to the case body, the second wheel is steered relative to the cantilever, and the first wheel and the second wheel are used to drive the multi-purpose planetary exploration rover.2. The multi-purpose planetary exploration rover according to claim 1 , wherein:the cantilever is mounted with a first locking mechanism, and the first locking mechanism enables the cantilever to remain fixed relative to the case body;the multi-purpose planetary exploration rover is mounted with a detection device;the detection device comprises a plurality of multi-dimensional force sensors, and the plurality of multi-dimensional force sensors are mounted at shafts of the first wheel and the second wheel respectively.3. The multi-purpose planetary exploration rover according to claim 2 , wherein the two first wheels enable the multi-purpose ...

ELECTROMAGNETIC STRUCTURE COMPRISING PERMANENT MAGNETS

An electromagnetic structure comprising permanent magnets comprises an outer yoke (a), a first permanent magnet group (a, a), an inner yoke (a), an armature (a), and a second permanent magnet group (a, a). The outer yoke is in a hollow cylinder shape. The first permanent magnet group comprises multiple permanent magnets arrayed in a round shape, the multiple permanent magnets are connected to the outer yoke, and a magnetizing direction of each permanent magnet is along an axial direction. The inner yoke comprises an inner yoke upper base, an inner yoke sidewall, and an inner yoke lower base. The inner yoke upper base and the inner yoke lower base are separately extended outwards and horizontally from an upper end and a lower end of the inner yoke sidewall to form a circular ring. The armature comprises an armature upper base, an armature lower base, and an armature barrel body. The armature barrel body penetrates through the inner yoke sidewall, and the height of the armature barrel body is greater than that of the inner yoke. The armature upper base and the armature lower base are separately in a round shape with a diameter greater than an inner diameter of the inner yoke sidewall. The second permanent magnet group comprises multiple permanent magnets arrayed in a round shape, the multiple permanent magnets are connected to the outer yoke and the inner yoke, and a magnetizing direction of each permanent magnet is along an axial direction. The electromagnetic structure is low in power consumption of a coil, has a good shock resistance performance, and has a good capability against the centrifugal acceleration impact. 1. An electromagnetic structure containing a permanent magnet , comprising:an outer yoke, which is hollow cylindrical, and is composed of an upper base of the outer yoke, a lower base of the outer yoke, and an outer yoke sidewall;a first permanent magnet group, comprising a plurality of permanent magnets arranged in a circular shape, wherein, the ...

MULTI-TARGET DETECTION AND TRACKING METHOD, SYSTEM, STORAGE MEDIUM AND APPLICATION

In the multi-target detection and tracking method, lidar (2D laser scanner) scans point cloud data of surroundings and transfers the collected data to the edge server. Then, the edge server uploads the data to the cloud. After obtaining the lidar data, point clouds of footsteps are extracted through dynamic point extraction, point clustering, and random forest model, respectively. Footsteps are matched to form human tracking trajectory by using trajectory matching. After the tracking process, the walking information is published to the users, in a visual form. Meanwhile, the gait parameters are saved into files, including walking speed and step length, when human is detected. Comparing to the visual sensor based human tracking methods, the present invention employs lidar to avoid the interference of ambient light, which leads to easier implementation and larger universality, especially for multi-target scenarios. 1. A multi-target detection and tracking method , comprising:performing a lidar scanning on a surrounding environment, collecting point cloud data, transferring the point cloud data collected to an edge server, and then uploading, by a server, the cloud point data from the edge server to a cloud;after obtaining the point cloud data, extracting footstep points through a dynamic point extraction, a point clustering, and a random forest prediction, respectively, to obtain predicted walking information, wherein footstep is tracked by using trajectory matching;after processing the point cloud data and obtaining the predicted walking information, releasing processing results to a user in a visual form when a walking trajectory is detected, wherein relevant walking information is output and stored in files, including a walking speed and a footstep length.2. The multi-target detection and tracking method of claim 1 , further comprising saving range data from the lidar scanning into the files claim 1 , wherein raw data and processed data are downloadable by the user ...

PROCESS FOR FORMING HOLLOW MEMBER WITH COMPLICATED CROSS-SECTION

A process for forming a hollow member with A complicated cross-section wherein a section of a tube blank first undergoes a bending deformation due to its internal pressure and bend moment generated by the upsetting of an upper die, and is then compressed to be molded under the support of the internal pressure. The process of the invention does not require the reshaping step at an increased pressure. The process can make a hollow member with a complicated cross-section formed under a low pressure, and solves a technical bottleneck relating to a conventional process for forming this kind of members that is subject to an ultrahigh pressure generator. 1. A process for forming a hollow member with complicated cross-section , the process comprising steps of:(1) analyzing cross-sectional perimeters of the member to find the shortest and the longest ones, wherein, the cross-section with the shortest perimeter is designated as a cross-section A and the cross-section with the longest one is designated as a cross-section B;(2) selecting a tube blank, the cross-sectional perimeter, designated as “L”, of which should not be longer than that of the cross-section B of the member;{'b': '1', '(3) designing a die C, a die D and two seal punches in accordance with the shape of the member , which is the same as the prior art and thus is not described in detail herein;'}(4) placing the tube blank into the die D, after which ends of the tube blank are sealed by the seal punches and the inside of the tube blank is filled with a fluid medium;(5) moving the die C towards the die D such that the die C begins to be in contact with the tube blank;(6) adjusting internal pressure of the tube blank to p1;(7) continuing moving the die C towards the die D, a bending moment M thereby generated at the tube blank by the combined action of forces from the dies and the internal pressure, wherein, the bending moment M enables cross-sections of the tube blank to undergo bending deformation and be ...

High-frequency-reproducibility laser frequency stabilization method and device based on multi-point acquisition of laser tube temperature

The disclosure provides a high-frequency-reproducibility laser frequency stabilization method and device based on multi-point acquisition of laser tube temperature. The laser frequency stabilization device includes: a frequency stabilization control circuit. The frequency stabilization control circuit includes a polarizing beam splitter, an optical power conversion circuit, an A/D conversion circuit, a temperature measuring circuit, a microprocessor, a D/A converter and a heating film driver. The polarizing beam splitter is disposed outside any one of laser transmitting holes. The optical power conversion circuit is disposed on reflection and refraction optical paths of the polarizing beam splitter. The optical power conversion circuit, the A/D conversion circuit, the microprocessor, the D/A converter, the heating film driver and a plurality of groups of heating films are sequentially in one-way connection. Temperature sensors, the temperature measuring circuit and the microprocessor are sequentially in one-way connection. The method of the disclosure can increase the frequency reproducibility of a laser device from 10 −8 to 10 −9 . The device of the disclosure can effectively avoid the drift of a final frequency stabilization temperature point.

Spectral Analysis Device Based on Brillouin Dynamic Grating and Analysis Method Thereof

A spectroscopic analysis device based on Brillouin dynamic grating and its analysis method, which provides high resolution and large measuring range at the same time. The device includes a laser device (), a fiber optic coupler device (), a first fiber amplifier device (), a first isolator (), a first polarization controller (), a second polarization controller (), a single-sideband modulation modulator (), a second fiber amplifier device (), a second isolator (), a third polarization controller (), a single-mode fiber (), a polarization beam splitter (), a circulator (), a photodetector (), a data acquisition card (), a fourth polarization controller () and a microwave source (). The method utilizes the Brillouin scattering of two beams of pump light in optical fiber forming Brillouin dynamic gratings as the spectral element and achieve a sub-MHz resolution. 11234567891011121314151617. A spectroscopic analysis device based on Brillouin dynamic grating , characterized in that , said spectroscopic analysis device comprising: a laser device () , a fiber optic coupler device () , a first fiber amplifier device () , a first isolator () , a first polarization controller () , a second polarization controller () , a single-sideband modulation modulator () , a second fiber amplifier device () , a second isolator () , a third polarization controller () , a single-mode fiber () , a polarization beam splitter () , a circulator () , a photodetector () , a data acquisition card () , a fourth polarization controller () and a microwave source () ,{'b': 1', '2', '4', '3', '4', '5', '5', '12, 'said laser device () emits a laser beam which is divided into two beams of pump light through said fiber optic coupler device (), said first beam of pump light is incident to said first isolator () after magnifying processing through said first fiber amplifier device (), then the emission light from said first isolator () is incident to said polarization controller (), after processing an ...

Ultra-sensitive glucose sensor based on graphene and carbon fiber substrate and preparation method thereof

The present invention belongs to the technical field of material fabrication, and particularly relates to an ultra-sensitive glucose sensor based on a graphene and carbon fiber substrate and a fabrication method thereof. The method includes fabricating a carbon fiber cloth with vertical graphene growth on a surface thereof, performing pretreatment to make the carbon fiber cloth hydrophilic, directly soaking the carbon fiber cloth in a PBS solution of glucose oxidase with the pH of 7.4, and then taking out and drying the carbon fiber cloth at room temperature to obtain a glucose sensor. According to the present invention, the lower limit of glucose detection reaches about 0.1 mM, and the glucose sensor also has multistage corresponding characteristics, so that different detection coefficients and capabilities can be achieved in different glucose concentration ranges. The application range and precision of the glucose sensor are greatly improved.

IMAGE PRIVACY PERCEPTION METHOD BASED ON DEEP LEARNING

An image privacy perception method based on deep learning, including the following steps: S1, building a privacy classification data set with labeled categories, and training a privacy perception network with a transfer learning method; S2, recognizing a privacy image using a deep convolutional neural network oriented to privacy perception; and S3, extracting an attention profile according to deep convolutional features of the neural network, and locating an attention focusing region to complete the perception of an image privacy region. The method has the following beneficial effects: by completing end-to-end training and testing based on the deep neural network, the privacy image can be accurately distinguished with the privacy region located, facilitating the selective protection of the privacy information in the image. 110-. (canceled)11. An image privacy perception method based on deep learning , comprising the following steps:S1, building a privacy classification data set with labeled categories, and training a privacy perception network with a transfer learning method;S2, recognizing a privacy image using a deep convolutional neural network oriented to privacy perception; andS3, extracting an attention profile according to deep convolutional features of the neural network, and locating an attention focusing region to complete the perception of an image privacy region.12. The image privacy perception method based on deep learning according to claim 11 , wherein S1 further comprises: first pre-training a deep convolutional neural network model over a large-scale image data set claim 11 , then building the privacy classification data set claim 11 , and fine-tuning the pre-trained deep convolutional neural network model over the privacy classification data set.13. The image privacy perception method based on deep learning according to claim 12 , wherein S2 further comprises: adding a bilinear operation layer posterior to a last convolutional layer of the deep ...

Thrust Compensation System Of Dual-Winding Voice Coil Motor

A thrust compensation system of a dual-winding voice coil motor, which is used for driving the voice coil motor having main windings ( 100 ) and secondary windings ( 200 ), wherein the secondary windings ( 200 ) of the voice coil motor are between each pair of the main windings ( 100 ). The system includes a switch drive circuit of the main windings ( 800 ) which is powered by a first controlled voltage source to drive the main windings ( 100 ) adopted as the main working windings of the voice coil motor and used for providing the output electromagnetic force required by the driving system of the voice coil motor in work; a switch drive circuit of the secondary windings ( 900 ) which is powered by a second voltage source to drive the secondary windings ( 200 ) adopted as compensation windings, and used for providing the thrust ripple opposite to the main windings ( 100 ) so as to compensate the thrust ripple of the main windings ( 100 ) and keep the resultant force of the output of the main windings ( 100 ) and the secondary windings ( 200 ) of the voice coil motor in constant; wherein the voltages U dc1 and U dc2 of the first and second controlled voltage sources of the main windings ( 100 ) and the second windings ( 200 ) are configured as meeting a certain relationship.

VIBRATION ISOLATOR WITH ZERO STIFFNESS WHOSE ANGLE DEGREE OF FREEDOM IS DECOUPLED WITH SPHERICAL AIR BEARING

A vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a spherical air bearing has a main body, in which a sleeve and a lower mounting plate, a piston cylinder and the sleeve are both lubricated and supported with air bearing surfaces respectively, and the angle degree of freedom between a upper mounting plate and the lower mounting plate is decoupled with a spherical air bearing; a position close-loop control system comprising voice coil motors, displacement sensors, limit switches, a controller and a driver is introduced, and the relative position between the upper mounting plate and the lower mounting plate is precisely controlled. 1. A vibration isolator with zero stiffness , comprising{'b': '1', 'a upper mounting plate (),'}{'b': '2', 'a lower mounting plate (),'}{'b': 4', '1', '2, 'a main body () fitted between the upper mounting plate () and the lower mounting plate (), and'}{'b': 3', '4', '26, 'a clean air compressor () connected to the main body () through an air pipe ();'}{'b': '4', 'wherein the main body () comprising'}{'b': 6', '2', '21, 'a downside-down sleeve () lubricated and supported against the lower mounting plate () by a planar air bearing surface (),'}{'b': 5', '6', '6', '22, 'a upside-down piston cylinder () -fitted in the sleeve () and lubricated and supported against the sleeve () by a cylindrical air bearing surface ();'}{'b': 7', '5', '1, 'a spherical air bearing () fitted between the piston cylinder () and the upper mounting plate ();'}{'b': 10', '13', '16', '5', '6, 'a voice coil motor in Z direction () for providing a vertical driving force, a displacement sensor in Z direction () and a limit switch in Z direction () having respective sensitive directions along the direction of the vertical driving force that are fitted between the piston cylinder () and the sleeve ();'}{'b': 8', '11', '14', '6', '2, 'a voice coil motor in X direction () for providing a first horizontal driving force, a displacement ...

MAGNETICALLY SUSPENDED AND PLANE-DROVE VIBRATION ISOLATOR

A magnetically suspended and plane-drove vibration isolator with zero stiffness comprises an upper mounting plate, a lower mounting plate and a main body. A sleeve of the main body is lubricated and supported against the lower mounting plate by a magnetically suspended planar motor. A piston cylinder fitted in the sleeve is lubricated against the sleeve by a cylindrical air bearing surface. The angle degree of freedom between the upper mounting plate and the lower mounting plate is decoupled by a spherical air bearing. A position close-loop control system is formed to precisely control the relative position between the upper mounting plate and the lower mounting plate. 1. A magnetically suspended and plane-drove vibration isolator with zero stiffness , comprising:{'b': '1', 'a upper mounting plate (),'}{'b': '2', 'a lower mounting plate (),'}{'b': 4', '1', '2, 'a main body () fitted between the upper mourning plate () and the lower mounting plate (), and'}{'b': 3', '4', '26, 'a clean air compressor () connected to the main body () through an air pipe ();'}{'b': '4', 'wherein the main body () comprising'}{'b': 6', '2', '24, 'a downside-down sleeve () lubricated and supported against the lower mounting plate () by a magnetically suspended planar motor (),'}{'b': 5', '6', '6', '22, 'a upside-down piston cylinder () fitted in the sleeve () and lubricated against the sleeve () by a cylindrical air bearing surface (),'}{'b': 7', '5', '1, 'a spherical air bearing () fitted between the piston cylinder () and the upper mounting plate ();'}{'b': 10', '13', '16', '5', '6, 'a voice coil motor in Z direction () for providing a vertical driving force, a displacement sensor in Z direction () and a limit switch in Z direction () having respective sensitive directions along the direction of the vertical driving force that are fitted between the piston cylinder () and the sleeve ();'}{'b': '24', 'a magnetically suspended planar motor () for providing a first horizontal driving force ...

Novel Membrane Aeration Anaerobic Granular Sludge Reactor and Efficient Nitrogen Removal and Greenhouse Gas Emission Reduction Method Thereof

The present invention discloses a novel membrane aerated anaerobic granular sludge reactor, belonging to the technical field of wastewater treatment. The reactor solves the problems of low solubility of gas substances in an aqueous solution, large gas-liquid mass transfer resistance and low mass transfer rate. The top of a reactor body is provided with a water outlet, and the middle side wall of the reactor body is provided with a middle water outlet; the middle water outlet of the reactor body is connected with a water inlet of a membrane module; a water outlet of the membrane module is connected with a bottom water inlet of the reactor body through a circulating pump, a water inlet is connected with the bottom water inlet of the reactor body through a feed pump, a high pressure gas cylinder outputs high pressure gas to the membrane module, and a gas pressure regulating valve is arranged between the high pressure gas cylinder and the membrane module. The novel membrane aerated anaerobic granular sludge reactor improves the content of a gas substrate therein, and shortens the formation time of granular sludge. The method for efficient nitrogen removal and greenhouse gas mitigation has higher nitrate and ammonia removal rates and a higher dissolved methane removal rate within a shorter time.

Performance Prediction Method And System Of Pervious Concrete Based On Meso-Structure Reconstruction Model

The present invention discloses a performance prediction method and system of pervious concrete based on a meso-structure reconstruction model. The method includes: obtaining a tomographic image of a coarse aggregate; extracting a coarse aggregate distribution region in the tomographic image of the coarse aggregate; calculating a maximum thickness of a coating; adding a cement-based coating with a preset thickness to the surface of the coarse aggregate in the coarse aggregate distribution region by a morphological operation method, to obtain a coating-added image; three-dimensionally reconstructing the coating-added image by a three-dimensional reconstruction method, to obtain a three-dimensional model of the pervious concrete; extracting a pore distribution region in the coating-added image; three-dimensionally reconstructing the pore distribution region by a three-dimensional reconstruction method, to obtain a three-dimensional model of a pore; and predicting a performance parameter of the pervious concrete corresponding to the three-dimensional model of the pervious concrete. 1. A performance prediction method of pervious concrete based on a meso-structure reconstruction model , comprising:obtaining a tomographic image of a coarse aggregate, which is a tomographic image obtained by tomographically scanning the coarse aggregate in a dense packing state with an X-ray;extracting a coarse aggregate distribution region in the tomographic image of the coarse aggregate;calculating a maximum thickness of a coating, which is the maximum thickness of a cement-based coating coated on the surface of the coarse aggregate;adding a cement-based coating with a preset thickness to the surface of the coarse aggregate in the coarse aggregate distribution region by a morphological operation method, to obtain a coating-added image, the preset thickness being smaller than the maximum thickness of the coating;three-dimensionally reconstructing the coating-added image by a three- ...

PROCESS FOR PREPARING RODLIKE MAGNETIC FERROFERRIC OXIDE MATERIAL AND USE THEREOF

The present invention relates to a process for preparing a rodlike magnetic ferroferric oxide (FeO) material and use thereof. The preparation includes the following steps: step 1: magnetic Fe3O4 nanoparticle preparation; and step 2: self-assembly of magnetic Fe3O4@SiO2 nanoparticles into a rodlike magnetic material. When in use, the rodlike magnetic FeOmaterial prepared by the process according to claim is used in micro- and nano-motors, which can implement rotation and deflection in an external magnetic field. The present invention provides a process for preparing a rodlike magnetic FeOmaterial. The rodlike magnetic ferroferric oxide material prepared by the process is suitable for mass production on an industrial scale, featuring identifiable direction of the magnetic moment, strong magnetism, good magnetic response, simple process, and low cost. 1. A process for preparing a rodlike magnetic ferroferric oxide (FeO) material , comprising the following steps:{'sub': 3', '4, 'Step 1: preparation of magnetic FeOnanoparticles'}{'sub': 3', '2, '(1) Dissolving 0.675 g of FeCl.6HO in 35 mL of ethylene glycol, and mixing to obtain solution A1;'}{'sub': 3', '4, '(2) Adding 1.925 g of CHCOONHin solution A1, and stirring for 30 min to obtain solution A2; and'}{'sub': 3', '4, '(3) Charging solution A2 into a reactor, heating to 200° C., heating and reacting for 12 h at a constant temperature, cooling down to room temperature, centrifuging and washing 4-6 times, and drying in air at room temperature to obtain FeOnanoparticles;'}{'sub': 3', '4', '2, 'Step 2: preparation of a rodlike magnetic FeO@SiOnanoparticle material'}{'sub': 3', '4, '(1) Dissolving 4 mg of FeOobtained in step 1 in a mixture of 5 mL of deionized water and 25 mL of isopropanol, and sonicating for 30 min to obtain mixed solution B1;'}(2) Adding 0.5 mL of ammonia water and 30 μL of tetraethyl orthosilicate (TEOS) into mixed solution B1 to initiate reaction, placing on a tube roller shaker, and reacting for 6 h ...

Magnetic suspension planar motor with structure of superconductor excitation

A magnetic suspension planar motor comprises a structure of superconductor excitation. A primary base plate is in a shape of board. Armature windings are fixed on an air gap side of the primary base plate. A secondary base plate in a secondary structure is evenly divided into 2 h*2 h magnet cells. 2 h 2 superconducting magnets are respectively fixed in the magnet cells on the secondary base plate, which resembles a checkerboard pattern. The superconducting magnets are adjacent to each other, neither in a horizontal direction nor in a vertical direction. The superconducting magnets are magnetized parallelly, and magnetization directions of the superconducting magnets are perpendicular to a surface on an air gap side of the secondary base plate. The superconducting magnets in a same row or column have same magnetization directions, and the superconducting magnets in adjacent rows columns have contrary magnetization directions. A cooling container shields all of the superconducting magnets.

Intelligent Micromanipulation System Based on Machine Vision

Disclosed is an intelligent micromanipulation system based on machine vision, including a base, wherein a microscope, a rotating table and two lifting tables are arranged on the base, the microscope is located right above the rotating table, the two lifting tables are arranged at two sides of the rotating table, respectively, and each is provided with a mechanical arm, each of the two manipulators is provided with an end effector, the mechanical arm is capable of driving the corresponding end effector to perform fine adjustment in x, y and z directions, one of the end effectors clamps a suction holding needle in communication with a suction pump, while the other end effector clamps an injection needle in communication with an injection pump; and the rotating table includes a tray, a rotating mechanism and a driving device, and the driving device drives the tray to rotate via the rotating mechanism. 1. An intelligent micromanipulation system based on machine vision , comprising: a base , wherein a microscope , a rotating table and two lifting tables are arranged on the base , the microscope is located right above the rotating table , the two lifting tables are arranged at two sides of the rotating table , respectively , and each is provided with a mechanical arm , each of the two mechanical arm is provided with a end effector , the mechanical arm is capable of driving the corresponding end effector to perform fine adjustment in x , y and z directions , one of the end effectors clamps a suction holding needle which is in communication with a suction pump , while the other end effector clamps an injection needle which is in communication with an injection pump; and the rotating table comprises a tray , a rotating mechanism and a driving device , and the driving device is capable of driving the tray to rotate via the rotating mechanism.2. The intelligent micromanipulation system based on machine vision of claim 1 , wherein claim 1 , the rotating table further comprises ...

MAGNETICALLY SUSPENDED VIBRATION ISOLATOR WITH ZERO STIFFNESS WHOSE ANGLE DEGREE OF FREEDOM IS DECOUPLED WITH A JOINT BALL BEARING

A magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing has a main body, in which a sleeve and a lower mounting plate are supported with a magnetically suspended thrust bearing, a piston cylinder and the sleeve are lubricated and supported with a cylinder air bearing surface, and the angle degree of freedom between a upper mounting plate and the lower mounting plate is decoupled with a joint ball bearing; a position close-loop control system comprising voice coil motors, displacement sensors, limit switches, a controller and a driver is introduced, and the relative position between the upper mounting plate and the lower mounting plate is precisely controlled. 1. A magnetically suspended vibration isolator with zero stiffness , comprising:{'b': '1', 'a upper mounting plate (),'}{'b': '2', 'a lower mounting plate (),'}{'b': 4', '1', '2, 'a main body () fitted between the upper mounting plate () and the lower mounting plate (), and'}{'b': 3', '4', '26, 'a clean air compressor () connected to the main body () through an air pipe ();'}{'b': '4', 'wherein the main body () comprising'}{'b': 6', '2', '24, 'a downside-down sleeve () lubricated and supported against the lower mounting plate () by a magnetically suspended thrust bearing (),'}{'b': 5', '6', '6', '22, 'a upside-down piston cylinder () fitted in the sleeve () and lubricated against the sleeve () by a cylindrical air bearing surface (),'}{'b': 7', '5', '1, 'a joint ball bearing () fitted between the piston cylinder () and the upper mounting plate ();'}{'b': 10', '13', '16', '5', '6, 'a voice coil motor in Z direction () for providing a vertical driving force, a displacement sensor in Z direction () and a limit switch in Z direction () having respective sensitive directions along the direction of the vertical driving force that are fitted between the piston cylinder () and the sleeve ();'}{'b': 8', '11', '14', '6', '2, 'a voice coil motor ...

Method for manufacturing combined hollow camshaft by axial-compression upsetting-deformation technique

A method for manufacturing a hollow camshaft is provided, and more particularly, a method for manufacturing a combined hollow camshaft by an axial-compression upsetting-deformation technique. The present method solves a problem that the current camshaft manufactured in an internal high-pressure expansion manner in the prior art has the insufficient locking force to cause the loosening of a cam. The method is as follows: a camshaft is formed by combining two independent units, namely a cam and a shaft tube. Non-circular countersinks are distributed on two sides of the cam. Thrust steps are formed on the shaft tube correspondingly. The cam is placed between the two thrust steps of the shaft tube. The locking force is applied to the cam by utilizing the thrust steps on the two sides of the cam based on thermal expansion and contraction. Simultaneously, the thrust steps lock the cam with the countersinks.

Method and apparatus for ultra-wide circular scanning imaging by optical satellite

A technology for ultra-wide circular scanning imaging by an optical satellite is provided. Calculating an angle θ 1 between the outermost field of view of an area array camera ( 2 ) and an earth-pointed axis (q) of a satellite ( 1 ) according to the width W required for ground imaging coverage in a direction perpendicular to the flight direction (b) of the satellite ( 1 ) and according to the height h of the orbit of the satellite ( 1 ); installing the area array camera ( 2 ) on a side surface of the satellite ( 1 ) according to the angle θ 1 ; calculating the maximum rotation angle ω max allowed by the satellite ( 1 ) according to the minimum exposure time T of a detector of the satellite ( 1 ) and the worst ground pixel resolution r of the satellite ( 1 ); selecting a rotation speed ω of the satellite ( 1 ) that is less than ω max , and setting the rotation speed ω to be the rotation speed relative to the ground.

FABRICATION METHOD OF MULTI-CORE FIBER BRAGG GRATING PROBE USED FOR MEASURING STRUCTURES OF A MICRO PART BASED ON THE CAPILLARY SELF-ASSEMBLE TECHNIQUE

A fabrication method of the multi-core fiber Bragg grating (FBG) probe for measuring structures of a micro part based on the capillary self-assembly technique, wherein the diameter of the fiber () inscribed with FBG is reduced using a mechanical method or an etch method by the hydrofluoric acid; the fibers () inscribed with FBG, whose diameter has been reduced, are inserted into a tube () through its terminal with an inner taper angle; the FBG terminals of these fibers () are immersed into the UV adhesive () of a low viscosity and the UV adhesive () is raised in the gaps between the fibers (); or the UV adhesive is dropped on the these fibers () and the capillary bridge between the fibers () is formed; a most compact structure of the fiber bundle is formed as a result of the capillary self-assembly; the fiber bundle is cured using a UV light and the multi-core FBG () is therefore formed; the terminal of the multi-core FBG () is polished with an optic fiber polishing machine and then a spherical tip is fabricated with the melting fiber method or the installation method of a micro ball; therefore, a multi-core FBG () probe can be achieved. The method features low crosstalk between signal of FBG, inexpensive and low insertion loss. 1. A fabrication method of the multi-core FBG probe for measuring structures of a micro part based on the capillary self-assemble technique , comprising: preparing a fiber inscribed with FBG of 100 mm˜1000 mm in length, where the FBG part, located at the 30 mm˜50 mm from the terminal of the fiber inscribed with FBG, is 10 mm˜20 mm in length;', 'stripping the coating of 50 mm˜80 mm in length off the fiber inscribed with FBG from its terminal close to the FBG part;', straightening the fiber inscribed with FBG,', 'fixing the fiber inscribed with FBG on the setting mechanism of the synchronous-rotation motor and aligning the axis of the fiber inscribed with FBG with that of the synchronous-rotation motor,', 'polishing the fiber inscribed with ...

Method and Equipment Based on Multi-Core Fiber Bragg Grating Probe for Measuring Structures of a Micro Part

A method and equipment based on multi-core fiber Bragg grating (FBG) probe for measuring structures of a micro part are provided. The provided method relates to how to accomplish measuring structures of a micro part by transforming two or three-dimensional contact displacements into spectrum shifts of the multi-core FBG probe, and to reconstruct the structure geometry of a micro part. The provided equipment can be used to bring the spherical tip of the multi-core FBG probe into contact with a micro part, to determine coordinates of contact points, and to reconstruct the structure geometry of a micro part. The provided method and equipment feature high sensitivity, low probing force, high inspecting aspect ratio and immunity to environment interference. 1. A method based on multi-core FBG probe for measuring structures of a micro part includes following steps:Step 1. Providing a multi-core FBG probe, which comprises a spherical tip and a multi-core fiber stylus inscribed FBGs in its cores; the multi-core fiber stylus, cantilevered at one end and with the spherical tip fixed on the other, serves as the multi-core FBG probe; the multi-core fiber utilized to fabricate the multi-core fiber stylus should have one or more cores located out of the center of the multi-core fiber;Step 2. Providing a photoelectric probing system, which consists of the multi-core FBG probe mentioned in step 1, an optical path for the operation of the multi-core FBG probe, and an interrogation unit (consisting of a demodulation unit and a signal processing unit) for detecting and processing the sensing signal of the multi-core FBG probe; when a micro part is measured, the spherical tip of the multi-core FBG probe is brought into contact with a micro part and the spectra of FBGs comprised in the multi-core fiber stylus shift accordingly; the optical path supplies the multi-core FBG probe with energy and ensures the sensing signal containing spectrum shifts of FBGs in the multi-core fiber stylus ...

Method for Analyzing Magnetic Detection Blind Zone

Disclosed is a method for analyzing a blind zone of a magnetic detection method that can provide a complete distribution map of the detection blind zone within the entire zone of the magnetic target. The method comprises the first step of establishing a complete magnetic detection model to obtain calculated position and magnetic moment of a magnetic target that is detected by a magnetic gradiometer. The second step involves establishing a direction-attitude-sphere model to represent the entire zone of the magnetic target. The third step involves expanding the direction-attitude-sphere to a planar map layered by latitude and calculating success detection rates within the planar expansion map. Finally, the distribution map of the magnetic detection blind zone in the entire zone is visually presented in the planar expansion map and a complete distribution rule of the entire detection blind zone is thus obtained. This blind zone analysis method is applicable to any magnetic detection method and can provide a visual presentation of the entire detection blind zone. The knowledge of the detection blind zone can be applied to guide practical magnetic detection to avoid the detection blind zone so as to increase the detection accuracy. 2. The method for analyzing a magnetic detection blind zone of claim 1 , further comprising performing magnetic detection using the magnetic gradiometer while avoiding the magnetic detection blind zone by adjusting the position of the magnetic gradiometer so as to increase the detection accuracy. This application claims the benefit of Chinese patent application No. 201910300874.1, filed Apr. 15, 2019, the content of which is incorporated by reference herein.The present invention relates to a method for analyzing a blind zone of a magnetic detection method, which belongs to the technical field of magnetic detection.In recent years, more and more people have paid attention to and studied magnetic detection that has been widely used in many ...

Method for Making a Magnetic Gradiometer with High Detection Accuracy and Success Rate

Provided is a method for designing a magnetic gradiometer based on the combined influence of multiple influencing parameters. The method takes into consideration of synergetic interaction of the influencing parameters on the performance of a magnetic gradiometer. It analyzes detection errors within the entire zone of all possible directions and attitudes of a magnetic target under the influence of various influencing parameters, uses the detection accuracy and detection success rate to measure the performance of the magnetic gradiometer accurately and objectively, and finally obtains the influence rule of the influencing parameters on the performance of the magnetic gradiometer. Based on the knowledge of the combined influence of multiple influencing parameters, the magnetic gradiometer can be designed to have high detection accuracy and success rate and high cost-efficiency. 1{'img': [{'@id': 'CUSTOM-CHARACTER-00053', '@he': '5.67mm', '@wi': '3.56mm', '@file': 'US20200326389A1-20201015-P00025.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00054', '@he': '5.67mm', '@wi': '3.56mm', '@file': 'US20200326389A1-20201015-P00026.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00055', '@he': '5.67mm', '@wi': '3.56mm', '@file': 'US20200326389A1-20201015-P00027.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00056', '@he': '5.67mm', '@wi': '3.56mm', '@file': 'US20200326389A1-20201015-P00028.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00057', '@he': '5.67mm', '@wi': '3.22mm', '@file': 'US20200326389A1-20201015-P00029.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00058', '@he': '5.67mm', '@wi': '3.22mm', '@file': 'US20200326389A1-20201015-P00030.TIF', '@alt ...

A QUICK RESPONSIVE, SHAPE MEMORY THERMOSET POLYIMIDE AND PREPARATION METHOD THEREOF

A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation. 2. A method for preparing a quick responsive , high-performance , thermoset shape memory polyimide , having the following steps of:I. preparation of a diamine solution:weighting out 1,3-bis(3-aminophenoxy)benzene monomer and charging it into a three-neck flask containing N,N-dimethylacetamide solvent, then stirring the contents in the flask under the protection of dry nitrogen at room temperature until the 1,3-bis-(3-aminophenoxy)benzene monomer is completely dissolved, so as to obtain a diamine solution;wherein the molar ratio by volume between N,N-dimethylacetamide solvent and 1,3-bis(3-aminophenoxy)benzene monomer is 1 mL: (0.2-0.33) mmoL;II. preparation of an anhydride-terminated high molecular weight polyamic acid: adding bis-phenol A type diether-dianhydride monomer for 4-6 times to the diamine solution obtained in step I, then stirring the resultant for 16-20 hours at a speed of 200-300 r/min at room temperature to obtain the anhydride-terminated high molecular weight polyamic acid; wherein the amount of each addition of the bisphenol A ...

Rotary joint electromagnetic locking device and rotary joint

The present disclosure discloses a rotary joint electromagnetic locking device and a rotary joint, the rotary joint electromagnetic locking device comprising a first electromagnetic sucker, a sliding plate, a rotary plate, a connecting shaft connecting the first electromagnetic sucker and the sliding plate, and a second electromagnetic sucker, different from the prior art. When the first electromagnetic sucker and the second electromagnetic sucker have no adsorption force, the sliding plate and the rotary plate can be locked to each other; when the second electromagnetic sucker has an adsorption force, the rotary plate or the first electromagnetic sucker is adsorbed by the second electromagnetic sucker, making the sliding plate and the rotary plate to be further locked; when the first electromagnetic sucker has an adsorption force, the sliding plate can be adsorbed to the first contact surface of the first electromagnetic sucker, making the sliding plate released from the rotary plate.

METHOD AND EQUIPMENT FOR DIMENSIONAL MEASUREMENT OF A MICRO PART BASED ON FIBER LASER WITH MULTI-CORE FBG PROBE

A method and equipment for dimensional measurement of a micro part based on fiber laser with multi-core fiber Bragg grating probe are provided, wherein a multi-core FBG probe with FBGs () inscribed in the core or cores out of the center of the multi-core fiber is used to transform the two-dimensional or three-dimensional contact displacement into the spectrum shifts with a high sensitivity. At the meantime, the FBGs in the multi-core FBG probe () work as the wavelength selection device of the fiber laser, the wavelength of the fiber laser will change thereby. So the contact displacement is finally converted into the wavelength change of the fiber laser. The method and equipment have the advantage of high sensitivity, low probing force, compact structure, high inspecting aspect ratio and immunity to environment interference. 1. A method for dimensional measurement of a micro part based on ring fiber laser with a multi-core fiber Bragg grating (FBG) probe , comprising:{'b': 1', '2', '16', '2', '3', '4', '16', '15', '4', '5', '12', '7', '14', '12', '7', '6, 'i': 'b', 'directing a pumping light generated by an optical pumping source () into a gain medium erbium-doped fiber through a wavelength division multiplexer (WDM) () and generates a stimulated emission light; dividing by a coupler () the stimulated emission light into two portions with one portion being directed to a ring cavity composed by the WDM (), an erbium-doped fiber (), a circulator , the coupler () and an isolator () successively; the other portion is used as a laser output; the portion propagating in the ring cavity is directed into a port A of the circulator () and is directed out from port B and then passes through a saturable absorber () for eliminating multi-longitudinal mode oscillation and suppressing mode hopping to obtain a single longitudinal mode light with a narrow line width; directing the light enters a wavelength selection device which includes a multi-core FBG probe () and an external ...

Ultra-microinjection detection and control device based on lensless imaging and method thereof

The present invention provides an ultra-microinjection detection and control device based on lensless imaging and a method thereof. A lensless optical liquid level sensor is used to measure a change of a liquid level in an injection needle. A microinjection control unit is used to track the change of the liquid level and correct an injection pressure of the injection pump. Transmitted light generated by a parallel light source passes through a transparent glass tube of the injection needle. Then the transmitted light passes through a light filtering film to reduce the intensity of the parallel light source to a photosensitivity range of a micro linear array image sensor chip. Finally, the transmitted light enters the micro linear array image sensor chip, so that the micro linear array image sensor chip measures the change of the liquid level in the injection needle.

TERRAIN MODELING METHOD THAT FUSES GEOMETRIC CHARACTERISTICS AND MECHANICAL CHARATERISTICS, COMPUTER READABLE STORAGE MEDIUM, AND TERRAIN MODELING SYSTEM THEREOF

A terrain modeling method that fuses geometric characteristics and mechanical characteristics, and a terrain modeling system are provided in the present invention. The method includes steps of: obtaining color images and depth images of the detected region, performing a terrain semantic segmentation on the color images, and fusing ground semantic information obtained by the semantic segmentation and depth information contained in the depth images at the same time to generate the point clouds; mapping the point clouds to a raster map in a map coordinate system to generate corresponding rasters, and updating the elevation values to the corresponding rasters; and calculating the input images in terms of terra-mechanical characteristics, and updating calculation results to the corresponding rasters to generate a terrain model. A mechanical characteristic parameter is added to a terrain factor, and terrain characteristics are innovatively performed from two dimensions of geometric characteristic and mechanical characteristics. 1. A terrain modeling method that fuses geometric characteristics and mechanical characteristics , comprising steps of:obtaining input images of a detected region, and processing the input images to generate point clouds comprising elevation values of the input images;mapping the point clouds to a raster map in a map coordinate system to generate corresponding rasters, and updating the elevation values to the corresponding rasters; andcalculating the input images in terms of terra-mechanical characteristics, and updating calculation results to the corresponding rasters to generate a terrain model.2. The terrain modeling method that fuses geometric characteristics and mechanical characteristics according to claim 1 , wherein the step of obtaining input images of a detected region and processing the input images to generate point clouds comprises:obtaining color images and depth images of the detected region, performing a terrain semantic ...

一种基于磁阻效应的流场成像系统及成像方法

为了提高流场成像设备的精度和降低设备成本，本发明记载了一种基于磁阻效应的流场成像系统及成像方法，包括电源、磁场发生模块、多个磁场感测模块，分析电路模块、信号转换模块、成像模块、磁性感应颗粒；所述电源与磁场发生模块连接，所述磁场发生模块包围待测空间，所述待测空间内设有多个阵列，在多个阵列中均设置有所述多个磁场感测模块，所述多个磁场感测模块的输出端分别与分析电路模块的输入端连接，所述分析电路模块的输出端与信号转换模块和成像模块的输入端连接，所述信号转换模块的输出端与成像模块的输入端连接，所述磁性感应颗粒均匀分布在待测空间内。本发明属于成像技术领域，具有设备构造简单易实现，操作分析简单方便的优点。

一种室温下制备碘化亚铜p型透明半导体薄膜材料的方法

一种室温下制备碘化亚铜P型透明半导体薄膜材料的方法，本发明涉及碘化亚铜P型透明半导体薄膜材料的制备方法。本发明要解决现有物理方法普遍存在着反应温度高、设备操作复杂、反应时间长的缺点，且传统的铜膜一次碘化成膜制备的碘化亚铜薄膜，存在电学性能和光学性能低的问题的问题。方法：一、靶材和衬底的清洗；二、Cu薄膜的制备；三、制备单层CuI薄膜；四、循环制备CuI复合薄膜，即完成室温下制备碘化亚铜P型透明半导体薄膜材料的方法。

改进的芬顿、类芬顿体系去除水中有机污染物的方法

改进的芬顿、类芬顿体系去除水中有机污染物的方法，它涉及水处理领域，具体涉及芬顿、类芬顿体系去除水中有机污染物的方法。本发明是要解决现有的芬顿、类芬顿体系存在pH适用范围窄、过氧化氢利用率低、药剂用量多、产生铁泥量大和类芬顿体系效率低的问题。方法：一、调节pH值：将预处理过的含有机污染物的水进行pH调节；二、混合反应：将芬顿试剂或类芬顿试剂与改进剂加入步骤一经过pH调节后的水中混合反应，即完成水中有机污染物的去除。本发明优点：一、本发明能够拓宽芬顿、类芬顿反应pH适用范围；二、本发明极大的提高了过氧化氢利用率及反应速率；三、本发明降低了铁泥量。本发明主要用于去除水中有机污染物。

室内小尺寸环形沥青路面结构车辙试验装置

室内小尺寸环形沥青路面结构车辙试验装置，它涉及一种环形路面结构加载试验装置。针对现有路面加速加载设备尺寸大、制造和使用周期长、费用高、操作复杂问题。内、外套筒套装在一起，环形底板设置在内、外套筒之间，环形底板与内、外套筒的底端面固接，由环形底板和内、外套筒之间围成的区域构成环槽，电动机设置在内套筒的内腔中，电动机的输出轴与旋转接头传动连接，旋转接头的导向滑槽内装有与其滚动连接的深度调节装置，两个试验车设置在环槽内，连接框架的一端与试验车固接，另一端与深度调节装置固接，两个位移计设置在环槽内。本发明具有尺寸小、结构简单、成本低和操作简单的优点，适于对各种沥青混凝土路面结构加载试验。

超硬微小半球偶件的磨削加工方法

超硬微小半球偶件的磨削加工方法，它涉及一种偶件的磨削加工方法。为了解决现有的微小半球偶件的加工方法存在研抛工序繁琐、尺寸精度和表面粗糙度无法同时满足、工件加工效率低的问题。本发明方法的主要步骤：步骤A、成形砂轮磨削：先采用成型磨削法对用于高精度动压气浮轴承上的半球偶件的凸球面和凹球面进行粗加工；步骤B、直角砂轮范成精密磨削：待所述半球偶件的凸球面和凹球面的余量在50μm左右时再用经过精密修整的直角砂轮精密磨削。本发明方法避免了研抛的繁琐和尺寸不精确性，不仅能加工出满足面形精度的尺寸要求，保证较好的表层、亚表层质量，还能在很大程度上提高工件的加工效率，降低生产成本。

一种表面改性的SiC纳米线及其制备方法与应用

本发明公开了一种表面改性的SiC纳米线及其制备方法与应用，所述方法为：将SiC纳米线放置到管式烧结炉或可以气氛保护的加热装置中，通入氧气和氮气混合气流，然后启动加热，由室温加热至700～1400℃，控制加热速率为5～20℃/min，保温时间为30～120min，即可得到表面改性后的SiC纳米线。表面改性后的SiC纳米线为核壳结构的一维纳米材料，芯部为SiC，外层为SiO 2 ，SiO 2 紧密包覆在SiC外面形成致密的包覆层，SiO 2 包覆层为非晶态，界面处的结合为原子尺度的紧密结合，外部的SiO 2 包覆层厚度可以控制为2nm~500nm。本发明解决了现有碳化硅纳米线在使用过程中的活性低、难分散、易氧化、界面结合差等问题，具有制备工艺简单、节能环保、易控制、成本低、产率高的优点。

利用高活性中间态五价锰氧化除污染的水处理药剂

利用高活性中间态五价锰氧化除污染的水处理药剂，涉及氧化除污染的水处理药剂。解决现有化学氧化水处理药剂的氧化能力弱，产生有毒有害副产物的问题。本发明水处理药剂由含锰化合物、络合剂和过硫酸盐组成，所述含锰化合物为二价锰离子、高锰酸盐或者二氧化锰。本发明利用高活性中间态五价锰氧化除污染的水处理药剂在络合剂存在条件下，二价锰离子、高锰酸盐或二氧化锰与过硫酸盐能原位快速产生高活性中间态五价锰，原位产生的高活性中间态五价锰具有氧化能力强、去除水中有机污染物速度快、不产生有毒有害副产物的优点。

具有测量频率扫描功能的交流磁场传感器

本发明提供了一种具有测量频率扫描功能的交流磁场传感器，包括频率可调多通道信号发生器（1）、第一变频器（4）、晶体滤波器（5）、第二变频器（6）、低通滤波器（7）、低噪声放大器（8）、探头，所述频率可调多通道信号发生器（1）分别与所述探头、第一变频器（4）、以及第二变频器（6）相连，所述探头、所述第一变频器（4）、所述晶体滤波器（5）、所述第二变频器（6）、所述低通滤波器（7）、所述低噪声放大器（8）依次相连。本发明的有益效果是可以扫描测量交流频率磁场并且能够有效地滤除噪声和干扰。

一种长初级永磁直线同步电机位置信号检测装置

本发明提供了一种长初级永磁直线同步电机位置信号检测装置，属于电机领域。本发明一种长初级永磁直线同步电机位置信号检测装置动子由导磁铁芯和永磁铁组成，定子由若干个等距排列的线性霍尔传感器组件组成，线性霍尔传感器组件与控制器连接，由导磁铁芯和永磁体构成的动子安装在直线电机动子一侧，由若干个等距排列的线性霍尔传感器组件构成的定子和直线电机定子安装在基座上，永磁体表贴于导磁铁芯下表面，永磁体下表面为弧形，相邻永磁体极性相反。本发明实现了动子无线缆运动，提高了直线电机系统运行速度和定位精度，同时采用线性霍尔传感器检测位置信号，节约了系统成本。

一种基于磁阻效应的流场成像系统及成像方法

为了提高流场成像设备的精度和降低设备成本，本发明记载了一种基于磁阻效应的流场成像系统及成像方法，包括电源、磁场发生模块、多个磁场感测模块，分析电路模块、信号转换模块、成像模块、磁性感应颗粒；所述电源与磁场发生模块连接，所述磁场发生模块包围待测空间，所述待测空间内设有多个阵列，在多个阵列中均设置有所述多个磁场感测模块，所述多个磁场感测模块的输出端分别与分析电路模块的输入端连接，所述分析电路模块的输出端与信号转换模块和成像模块的输入端连接，所述信号转换模块的输出端与成像模块的输入端连接，所述磁性感应颗粒均匀分布在待测空间内。本发明属于成像技术领域，具有设备构造简单易实现，操作分析简单方便的优点。

一种用于垂直轴风力机的辅助启动装置

一种用于垂直轴风力机的辅助启动装置，它涉及一种用于垂直轴风力机上的辅助启动装置。本发明解决了现有升力型风力机存在的起动转矩较小，在小风速下一般很难实现自启动的问题。本发明所述N个叶片为直叶片，N个支撑臂水平均布且呈一字形或星形设置，N个支撑臂的一端面均固接在一起；中心轴垂直设置在支撑架的下方，中心轴的上端面固接在支撑架的中心处，N个叶片一一对应地安装在N个支撑臂另一端面上，每个挡风板的一侧端面通过一对转动副安装在对应的一个支撑臂的下端面上或支撑臂的侧端面上；以支撑架的中心为参照，N个挡风板的转动方向一致呈顺时针或逆时针。本发明中可以在较小的风速下实现自启动，并有较高的风能利用率。

Detection Method for the Radiation-induced Defects of Oxide Layer in Electronic Devices

The present invention provides a detection method for radiation-induced defects of an oxide layer in electronic devices. The detection method includes the following steps: selecting a semiconductor material to be prepared into a substrate; preparing a back electrode on an upper surface of the substrate; growing an oxide layer on the back electrode; etching one side of the oxide layer, and exposing an etched part out of the back electrode; preparing a front electrode on an upper surface of the oxide layer; forming a plurality of grooves in the front electrode, and distributing the plurality of grooves in a grid shape to prepare a test sample; and performing a radiation test on the test sample, and detecting radiation-induced defects. By using the detection method provided by the present invention, rapid identification and detection of electrons and holes are achieved.

THREE-LAYER INTELLIGENCE SYSTEM ARCHITECTURE AND AN EXPLORATION ROBOT

A three-layer intelligence system architecture and an exploration robot are provided. The three-layer intelligence system architecture includes: a digital twin module for creating a virtual exploration environment and a virtual robot according to explored environment data acquired in real time by the exploration robot and robot data of the exploration robot; a virtual reality module for generating a process and a result of the virtual robot executing the control commands in the virtual exploration environment according to the virtual exploration environment, the virtual robot, and control commands of a control personnel for the exploration robot; and a man-machine fusion module for transmitting the control commands and showing the control personnel the process and the result of the virtual robot executing the control commands in the virtual exploration environment, and causing the exploration robot to execute the control commands after acquiring a feedback indicating that the control personnel confirms the control commands. 1. A three-layer intelligence system architecture for an exploration robot , comprising:a digital twin module, configured to create a virtual exploration environment and a virtual robot according to environment data of an explored environment acquired in real time by the exploration robot and robot data of the exploration robot;a virtual reality module, configured to generate a process and a result of the virtual robot executing the control commands in the virtual exploration environment according to the virtual exploration environment, the virtual robot, and control commands of a control personnel for the exploration robot; anda man-machine fusion module, configured to transmit the control commands and showing the control personnel the process and the result of the virtual robot executing the control commands in the virtual exploration environment, and causing the exploration robot to execute the control commands after acquiring a feedback ...

INTELLIGENT AMMUNITION CO-EVOLUTION TASK ASSIGNMENT METHOD

An intelligent ammunition co-evolution task assignment method is disclosed. The method includes the following steps. A chromosome gene encoding of genetic algorithm for ammunition assignment scheme of multi-platform interception operation is performed. A fitness of chromosome individual function in a genetic population is calculated according to a threat degree of an intercepting target in the ammunition assignment scheme and an interception probability of the intercepting target by different ammunition launching platforms. A probability ranking sequence of effective interception of the intercepting target by different ammunition launching platforms is obtained, and a genetic algorithm selection operation is performed on the chromosome individuals according to probability values of effective interception in descending order of priority. Crossover and/or mutation are performed on the selected chromosome individuals to obtain a next generation genetic population and the above steps are repeated until termination conditions are met to obtain the final ammunition assignment scheme. 1. An intelligent ammunition co-evolution task assignment method , comprising:{'b': '1', 'S. performing a chromosome gene encoding of genetic algorithm for ammunition assignment scheme of multi-platform interception operation;'}{'b': '2', 'S. calculating a fitness of chromosome individual function in a genetic population according to a threat degree of an intercepting target in the ammunition assignment scheme and an interception probability of the intercepting target by different ammunition launching platforms;'}{'b': '3', 'S. obtaining a probability ranking sequence of effective interception of the intercepting target by different ammunition launching platforms according to the fitness of the chromosome individual function in the contemporary genetic population, and performing a genetic algorithm selection operation on the chromosome individuals according to probability values of effective ...

一种新型的消化内镜送进装置

一种新型的消化内镜送进装置，属于医疗器械领域。现有的消化内镜送进装置采用摩擦轮实现送进功能，摩擦轮转动同时会引起摩擦力，不利于力的检测，而且出现意外情况下容易卡死，不利于患者安全。本发明包括固定外壳、回转机构、两个夹持机构、两个送进机构、两张上滑板和四个第一滑块；回转机构包括回转架体和驱动组件，回转架体设置在固定外壳内，驱动组件设置在固定外壳外，回转架体通过驱动组件进行回转运动；每张上滑板两端的下端面分别固装一个第一滑块，两张上滑板分别通过两端的第一滑块并排滑动连接在回转架体的上端面上，每张上滑板上分别设置一个夹持机构和一个送进机构。本发明用于消化内镜的送进与输出。

1-丁烯齐聚反应合成聚α-烯烃基础油的方法

1-丁烯齐聚反应合成聚α-烯烃基础油的方法，本发明涉及一种采用茂金属催化剂齐聚反应合成聚α-烯烃基础油的方法，它为了解决现有1-丁烯齐聚反应所用催化剂的催化效率较低且产物选择性较差的问题。合成方法：在氮气保护下，向反应器中依次加入茂金属催化剂、助催化剂溶液、氢气和单体1-丁烯液体，在0～90℃的温度下进行齐聚反应，闪蒸出未反应的单体，得到聚α-烯烃基础油。本发明制备聚α-烯烃基础油所用的催化剂催化效率高，催化活性可达到0.8×10 6 ～7.6×10 6 g/(molZr·h)，并通过控制聚合工艺条件，如反应温度和氢气浓度来实现产物的选择性。

双吡啶酰胺铁负载纳米二氧化硅异相催化剂的制备方法和应用方法

双吡啶酰胺铁负载纳米二氧化硅异相催化剂的制备方法和应用方法，它涉及一种催化剂的制备方法和应用方法。本发明是为了解决Fedpa对pH敏感，在中性和酸性水体中容易发生聚合或者脱金属现象而表现出低活性和不稳定性的问题。本方法如下：合成纳米二氧化硅材料SiO 2 ；制备表面氨基化的纳米二氧化硅SiO 2 ‑NH 2 ；合成具有酸酐乙酯取代基的双吡啶酰胺铁络合物；将合成的具有酸酐乙酯取代基的双吡啶酰胺铁络合物分散于表面氨基修饰的二氧化硅SiO 2 ‑NH 2 的四氢呋喃溶液中，即得。本发明将Fedpa进行固载，从而实现Fedpa分子的隔离，提高了Fedpa的重复利用性。由于通过化学键合的方式将被固载物连接到载体材料上，复合材料更加稳定。本发明属于催化剂的制备领域。

一种改善高压正极材料正极表面膜的电解液

一种改善高压正极材料正极表面膜的电解液，属于锂离子电池领域。所述电解液由有机溶剂、锂盐和电解液添加剂组成，其中：有机溶剂由20~30 wt.%环状碳酸酯、40~60 wt.%线性碳酸酯和10~40 wt.%氟代碳酸乙烯酯(FEC)组成，锂盐的浓度为0.9~1.2 mol/L，电解液添加剂由正极成膜剂和正极表面膜稳定剂组成，在电解液中成膜剂的含量为0.05~0.2 wt.%，正极表面膜稳定剂的含量为0.1~4.0 wt.%。本发明可以显著改善富锂锰基固溶体正极材料的高温循环性能，有效抑制其容量的衰减。

具有模拟红外目标的光阑装置

一种具有模拟红外目标的光阑装置，属于空间探测技术领域。所述光阑装置包括电机与定位器系统（1）、连轴器（2）、滚珠丝杠（3）、滑杆（5）、支架（8）和两片对称不规则的遮光片（6），连轴器（2）的一端与电机和定位器系统（1）连接，连轴器（2）的另一端连接有两个相互平行且反向放置的滚珠丝杠（3），所述滚珠丝杠（3）上配有滚珠驱动的滑轨，每一个滚珠丝杠（3）的下方正对对应具有卡槽的滑杆（5），滑杆（5）和滚珠丝杠（3）的左右两端分别固定在支架（8）上，遮光片（6）的上方被固定在滑轨上，下方坐落于滑杆（5）的卡槽中。本发明提供的驱动装置在动态环境下，系统变性小，可靠性高，且对系统的定位精度要求不高。

用于血管介入式手术的形状记忆合金驱动的导向微型装置

用于血管介入式手术的形状记忆合金驱动的导向微型装置，它涉及形状记忆合金(SMA)应用于生物医学工程技术领域。为解决现有介入式手术中人工方式控制导管导向所存在的手术的有效性和安全性受到局限的问题，本发明包括偏置弹簧(1)、至少三个形状记忆合金弹簧(2)和至少两个连接件(3)，偏置弹簧(1)为压缩弹簧，连接件(3)开有中心通孔(3－1)，偏置弹簧(1)穿过连接件(3)上的中心通孔(3－1)并与中心通孔(3－1)固连为一体，形状记忆合金弹簧(2)均匀分布在偏置弹簧(1)的外侧并且分别与连接件(3)的外表面固连为一体。本发明利用了形状记忆合金的特点，它能够从前端主动控制导管或导丝的运动方向，定位准确，从而缩短手术时间、减轻病人痛苦、提高手术的安全性和成功率。

一种磁性纳米墨水及磁性柔性电路或器件的制备方法

本发明提供了一种磁性纳米墨水及磁性柔性电路或器件的制备方法，所述磁性纳米墨水包括磁性纳米颗粒，所述磁性纳米颗粒的表面包覆有一层银包覆层；所述银包覆层的厚度为1~50nm。采用本发明的技术方案，通过将银层包覆在磁性纳米颗粒的表面，并控制包覆厚度为1‑50纳米时，能获得有效降低烧结温度的效果，利用该技术配制的墨水，在柔性衬底上打印、印刷或手动涂覆后，可实现20‑100℃低温烧结；而且利用包覆了银层的磁性纳米颗粒配制的墨水也具有良好的流动性，能够在低温下在柔性衬底上烧结形成电极和磁电器件，可用于制备高灵敏度柔性磁电器件，可实现弯折条件下稳定的电阻率和对非接触式磁场响应等方面的性能。

小型足尺寸沥青路面加速加载试验装置

小型足尺寸沥青路面加速加载试验装置，它涉及一种足尺寸沥青路面加载试验装置。针对现有室内车辙试验不能准确地模拟沥青路面的实际受力状态以及室外足尺寸路面加速加载试验设备尺寸巨大、试验周期长、试验费用昂贵、操作过程复杂问题。双向电机驱动主、从动大齿轮转动，设置在机架上的传动横杆上固套装传力小齿轮及空套装有传力大齿轮和升降齿轮及与环形水平传动链条啮合的过渡链轮，传力大、小齿轮与环形竖向内、外传动链条啮合，升降齿轮与升降导轨啮合，碾压钢轮和加载轮组通过环形水平传动链条带动移动，长方形框钢轮加载梁通过内油压泵驱动上下移动，长方形框轮组加载梁通过外油压泵驱动上下移动。本发明用于足尺寸沥青路面加速加载试验。

一种提高再现图像分辨率的正交偏振全息记录方法

一种提高再现图像分辨率的正交偏振全息记录方法，如下：由激光器发出的光束经偏振分光棱镜分成两束，调节第一半波片能够改变入射到偏振分光棱镜的光束的偏振方向，基于偏振分光棱镜特性，入射到第二空间滤波器方向的光束偏振态为竖直方向，通过调节第二半波片使入射到第一空间滤波器方向的光束偏振态为水平方向，同时调节第一半波片和第二半波片使竖直方向和为水平方向的两束光强比接近1∶1；由两束偏振态相互垂直的平行光束分别加载物体信息，采用角度-位移复用技术在介质内记录全息图。再现过程中两束物光束同时再现，通过透镜耦合后用CCD相机读出。本发明具有提高再现图像的分辨率的优点。

金属锌与臭氧联用的给水深度处理方法

金属锌与臭氧联用的给水深度处理方法，它涉及一种给水深度处理方法。本发明解决了现有的臭氧氧化法对水中有机污染物去除效果差及催化臭氧化工艺中的催化剂容易造成二次污染、制备工艺复杂、成本高、处理效果差的问题。方法：将金属锌放入臭氧接触反应器中，待处理的水再以1～50m/h的速度流入反应器，同时往水中通入臭氧，使臭氧、金属锌和水充分接触，待处理的水在反应器内的水力停留时间为1～200min，其中，每升待处理的水中通入0.1～100mg的臭氧。本发明的方法在水处理过程中，没有出现金属离子流失的现象，不产生二次污染，本发明的方法制备工艺简单，成本低，处理效果好。

臭氧／过氧化氢高级氧化膜反应器

本发明公开一种用过氧化氢催化臭氧化有机物过程的水处理反应装置。臭氧/过氧化氢高级氧化膜反应器，它包括臭氧曝入管1、反应容器2、进水管6和出水管7，它还包括催化剂进管3、膜体5和加压泵4，能被过氧化氢分子渗透过的膜体5把反应容器2内的空间隔开为反应腔2-1和过氧化氢腔2-2，进水管6和出水管7的内侧端部分别与反应腔2-1连通，催化剂进管3的内端部连通过氧化氢腔2-2。由于过氧化氢分子是通过膜体5中均匀分布的细小微孔渗透进反应腔中的，减少了羟基自由基之间的淬灭及与过氧化氢反应的数量。由于羟基自由基在水中分散地十分均匀，可以有效地提高有机物的去除率，同时也降低了过氧化氢的残余量，减少了后续处理的压力。

一种有机光致聚合物全息存储材料的光敏剂浓度序列

一种有机光致聚合物全息存储材料的光敏剂浓度序列，根据Beer定律，一定光强的入射光通过存储材料后，得出第一层材料吸收的光强的关系式，进而得出经过第一层材料后的透射光强的关系式，当材料分成s层，则得出第s层的吸收光强关系式为了克服传统材料中沿厚度方向的光栅衰减情况，使每层材料吸收光强相等，能够得到一个材料中的各个层光敏剂浓度关系式，当给出第一层存储材料的光敏剂浓度值，根据该式能够得到每层存储材料的光敏剂浓度值，即构成了存储材料的光敏剂浓度序列。使用该序列制作出有机光致聚合物全息存储材料克服了传统材料中沿厚度方向的光栅衰减情况，增加了材料的有效光学厚度，优化了材料的存储性能。

基于输入电压非恒等幅值的转速控制系统及方法

基于输入电压非恒等幅值的转速控制系统及方法，属于两相超声电机驱动控制领域。解决了现有对超声电机的调幅调速驱动方法中，电机的输入幅值相同，单独调节幅值时，存在调速死区大、调速比小及滞环大的问题。它包括转速指令生成模块、非恒等幅值电压生成模块、匹配电路和转速测量模块；非恒等幅值电压生成模块，用于接收转速指令值和转速测量值，并将转速指令值作为被减数与转速测量值作差，根据满足电机转速的控制需求，获得进行转速控制时所需的控制变量，该控制变量经过功率放大，最终获得超声电机的两相输入电压U A 及U B ，U A 及U B 为脉宽非恒等的交变电压，且U A 及U B 的脉宽线性相关，当α A ≤π时，α A +α B ＝π；当α A >π时，α A ‑α B ＝π；两相输入电压U A 及U B 的相位差恒定为π/2。用于对电机转速进行控制。

非晶金属纤维的调幅变频脉冲电流退火处理装置

非晶金属纤维的调幅变频脉冲电流退火处理装置，涉及一种电流退火处理装置，特别涉及非晶金属纤维的调幅变频脉冲电流退火处理装置，为了解决现有的退火处理装置得到的非晶金属纤维磁学性能不是很好的问题。它包括方波信号产生电路、分频电路、选频电路、MOS管开关电路和调幅电路；方波信号产生电路的信号输出端与分频电路的信号输入端连接，分频电路的信号输出端与选频电路的信号输入端连接，选频电路的信号输出端与MOS管开关电路的信号输入端连接，MOS管开关电路的信号输出端与调幅电路的信号输入端连接。本发明用于对非晶金属纤维进行退火处理。本发明不易造成纤维表面氧化和微观组织的晶化，能够有效改善和提高非晶金属纤维的磁学性能。

一种具有多功能电控光学特性的调光器件

一种具有多功能电控光学特性的调光器件，它涉及一种调光器件。本发明要解决现有散射模式的调光器件对入射光透过率的调节有限，吸收模式的调光器件难以做到隐私的保护，且很难均匀利用整个调光元件的消光材料的问题。调光器件由一层第一透明介质层、一层第一透明导电层、一层散射型调光层、n层染料液晶调光层、一层第二透明导电层及一层第二透明介质层组成。本发明用于具有多功能电控光学特性的调光器件。

一种集成封闭式核酸自动提取装置

一种集成封闭式核酸自动提取装置，属于核酸提取技术领域。竖直流道的下端紧密套装在混合腔内，竖直流道的上端紧密套装在水平流道下端的薄壁圆管内，水平流道的上端紧密套装在短试剂容腔的下薄壁套管内，长试剂容腔的下端紧密套装在短试剂容腔的上薄壁套管内，长试剂容腔的上端紧密盖装有端盖；竖直流道内设置有一直达混合腔底部的垂直导管，长试剂容腔内的多个盲孔一内设置有多个长软质试剂管，短试剂容腔内的多个盲孔二内设置有多个短软质试剂管；长软质试剂管与短软质试剂管外部分别固定有形状记忆合金。本发明采用封闭式结构，避免了试剂和产物的交叉污染，本发明用于核酸的提取。

一种血管内光学相干断层扫描的导丝伪影去除方法

一种血管内光学相干断层扫描的导丝伪影去除方法，属于医学图像处理技术领域，本发明为解决血管内光学相干断层扫描技术对心血管进行成像时存在导丝伪影的问题。它包括：获取有效帧图像数据；人工标记导丝和支柱位置，经过预处理后作为训练数据；构建训练伪影检测网络模型的数据集；构建伪影检测网络模型，对其进行训练，获得目标检测卷积神经网络模型，完成导丝伪影的检测；构建去除伪影网络的数据集；构建图像补全模型，对其进行训练，获得训练好的目标去除图像补全模型，完成导丝伪影的去除；将目标检测卷积神经网络模型和目标去除图像补全模型进行链接，完成导丝伪影检测去除重建。本发明IVOCT成像的导管伪影进行检测、去除及重建。

基于四标准光轴的角位移激光干涉仪校准方法与装置

基于四标准光轴的角位移激光干涉仪校准方法与装置属于激光测量技术领域，本发明将被校准激光干涉仪四条测量光束穿过四轴中空激光干涉镜组的中间通孔，四条被校准激光干涉仪测量光束平行置于四条平行标准测量光束中间位置；由四条标准测量光束在该平面投影点构成的四边形区域内，四条标准测量光束和四条被校准激光干涉仪测量光束受环境干扰的程度差异很小，标准测量光束与被校准激光干涉仪测量光束空气折射率值非常接近。

一种具有高生物活性及低降解速率生物医用镁或镁合金表面电化学处理的方法

一种具有高生物活性及低降解速率生物医用镁或镁合金表面电化学处理的方法，它涉及一种具有高生物活性及低降解速率生物医用镁或镁合金表面电化学处理的方法。本发明是要解决现有生物医用镁或镁合金生物活性低及在人体体液中腐蚀速率快的问题。方法：基体材料预处理、基体材料的微弧氧化处理、微弧氧化镁的电沉积处理、材料表面覆盖钙磷涂层。本发明用于处理生物医用镁或镁合金表面。

一种用于制备金纳米粒子的晶种生长法

一种用于制备金纳米粒子的晶种生长法，涉及一种用于制备金纳米粒子的方法。本发明是要解决目前晶种生长法制备大粒径金纳米粒子的原料具有毒性，还原剂引入杂质，制得金纳米粒子单分散性差、形貌不均一的技术问题。本发明：一、金种的制备；二、晶种生长法制备金纳米粒子。本发明的优点：一、本发明制备的金纳米粒子粒径均一，形貌均一为球形，通过改变HAuCl 4 与金种的比例可以精确控制金纳米粒子粒径大小，制得金纳米粒子标准分散度偏差小于10％，粒子长径比小于1.1；二、本发明在室温下快速反应，且利用H 2 O 2 为还原剂，反应完成后可以简单地通过分解反应或煮沸除去，在原有金种基础上不引入新的化学成分，不引入杂质。

一种具有初始自励磁能力的无刷谐波励磁同步发电机

一种具有初始自励磁能力的无刷谐波励磁同步发电机，涉及电励磁同步发电机领域。本发明是为了解决现有永磁发电机要依赖于昂贵的永磁材料、气隙磁场难以调节，而现有电励磁发电机需要独立励磁机的问题。本发明所述的电机的转子铁芯为4极结构，每一极的极靴中间位置均开有绕组槽，形成转子主齿和转子分齿，4个转子主齿上分别嵌入励磁绕组，8个转子分齿分别嵌入谐波绕组，在4个转子主齿的两端均安装有钕铁硼材料的永磁体，且每一极上的两个永磁体的励磁方向相同。它可用于风力发电中。

新型桁架式人体管道支架

本发明公开了一种新型桁架式人体管道支架，包括至少一层伸缩结构，伸缩结构包括第一框架、第二框架、第三框架、第一连杆和第二连杆，第一框架包括至少三个组件，组件包括长杆和短杆，至少三个组件圆周阵列形成第一框架，第一框架与第三框架结构相同且完全正对，第二框架为第一框架翻转后旋转得到，第一框架、第二框架和第三框架的阵列中心共线，第一框架、第二框架和第三框架的外凸点间通过第一连杆相连，第一框架、第二框架和第三框架的内凹点间通过第二连杆相连。本发明能够保证支架在扩张过程中，其轴向长度伸长，从而完全覆盖病变部位，并且保证支架与人体管道足够的实际接触面积。