New method for regulating and controlling performance and sensitivity of typical explosives and powders such as RDX by X rays

The invention relates to a method for rapidly regulating and controlling the performance and the sensitivity of explosives and powders based on X rays, and belongs to the field of regulation and control of the performance and the sensitivity of the explosives and powders. X-ray irradiation is carried out on the explosives and powders for different times, so that chemical bonds of the explosives and powders are fractured to different degrees, the internal structures or molecular forms of the explosives and powders are changed, and the performance and sensitivity of the explosives and powders are induced to change rapidly under specific conditions. A scanning electron microscope (SEM), a Raman spectrum (Raman Spectra), a Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) are used for carrying out crystal structure characterization, crystal form characterization and molecular structure characterization on the explosives and powders ...

悬挂腰椎牵引器

Preparation method and application of fusiform nanotube of transition metal chalcogenide

Molybdenum disulfide (MoS2) as a very ideal two-dimensional material for catalytic hydrogen production has been widely concerned. However, because the active sites of MoS2 are only stored at the edge of MoS2, and the intrinsic activity of the active sites is difficult to maximize, various methods for improving the catalytic performance have been proposed. Inspired by interesting properties and unique structure of graphene, single-layer or several-layer MoS2 has become a potential candidate material for improving the performance in the application. The invention discloses a preparation method and application of a fusiform nanotube of a transition metal chalcogenide, and a three-dimensional nanotube is prepared by using a mixed solution soft film plate method. The organic-inorganic mixing method provided by the invention has the characteristics of low cost, simple process, easiness in size control and easiness in mass production. Different transition metal elements are adopted, the preparation ...

Infrared detector based on nano tip structure and preparation method thereof

The invention discloses an infrared detector based on a nano tip structure, which comprises a camera test box, a lens bracket, an imaging objective lens, a nano tip combination and a photosensitive array, and is characterized in that the photosensitive array consists of a plurality of photosensitive elements; the nano tip combination comprises a substrate and a nano tip array, the nano tip array comprises a plurality of nano tip structures, each nano tip structure comprises a tip structure and a metal film layer, and the metal film layers of any two adjacent nano tip structures are electrically connected through a conductive wire. Each metal film layer of a row of nano tip structures located on the edge of the nano tip array is connected with a leading-out wire. Each photosensitive element corresponds to one sub nano tip array; the tip end of each pointed structure points to the photosensitive element; the nano tip array and the photosensitive array produce near-field coupling. The device ...

SCORING INFORMATION MATCHING METHOD AND APPARATUS, STORAGE MEDIUM AND SERVER

A scoring information matching method and apparatus, a storage medium and a server, which are used for solving the problem of scoring information given as a reply and a service record in a system being easily wrongly matched. The scoring information matching method comprises: acquiring target scoring information and a target scoring short message corresponding to the target scoring information; acquiring a first telephone number sending the target scoring short message; acquiring a second telephone number sending the target scoring information; extracting a first identification number from the first telephone number; searching pre-set service records for a service record, the identification number thereof being the same as the first identification number, a receiver telephone number of a corresponding scoring short message thereof being the same as the second telephone number, and a sending time of the corresponding scoring short message thereof satisfying a pre-set condition; and determining ...

Interpretable two-stage ship trajectory prediction method based on historical navigation mode mining

The invention relates to an interpretable two-stage ship trajectory prediction method based on historical navigation mode mining, which comprises two stages of feasible candidate trajectory set generation and candidate trajectory discrimination, and can effectively extract potential navigation environment and ship motion feature information in AIS data by mining a navigation mode in ship historical AIS data; a navigation mode is applied to a current ship trajectory to realize generation of a ship feasible candidate trajectory set based on a current ship navigation state and a historical behavior mode, so that a trajectory generation process and a trajectory generation result have relatively high interpretability; the neural network is utilized to learn the relevance between the current trajectory and the generated trajectory of the ship and discriminate and select, so that the precision of the trajectory prediction model can be effectively ensured. According to the method, the ship navigation ...

METHOD AND APPARATUS FOR GENERATING RANDOM CHARACTER STRING

A method and apparatus for generating a random character string. The method comprises: acquiring a sequence variable value in a database, the sequence variable value being a sequence composed of basic numerals in a predetermined basic numeral set, and the sequence variable value acquired at this time being different from a sequence variable value acquired at any other time (S101); and mapping the sequence into a character string as a generated random character string according to a preset one-to-one mapping relationship between characters contained in a character set and basic numerals contained in the basic numeral set (S102). Because a different sequence variable value is acquired each time, and accordingly, a different random character string is generated according to the one-to-one mapping relationship each time, it is unnecessary to repeatedly perform an operation of comparing character strings, so that the efficiency of generating a unique random character string can be improved.

Reflector antenna wind power coefficient prediction method based on proxy model

The invention discloses a reflection surface antenna wind power coefficient prediction method based on an agent model. The method comprises the following steps: obtaining structure parameters of a reflection surface antenna and establishing a simulation model; determining sampling points of two variables of azimuth and pitching of the reflecting surface and carrying out numerical simulation calculation; extracting resistance, lateral force and lift force values of the reflecting surface under different sampling points; reflecting surface wind power coefficients are calculated and stored in a sample point database; constructing a proxy model of a regularized minimum energy tensor product spline and detecting fitting precision; generating a reflecting surface wind power coefficient prediction result of the new sample point; and calculating the error between the predicted value and the simulation value of the reflecting surface wind power coefficient of the new sample point, and if the precision ...

Anorectal dosing device with blocked medicine outlet

An anorectal drug delivery device with a drug outlet blocked inside comprises a rod-shaped component with a hollow main body and an auxiliary component, the rod-shaped component main body is divided into a rod-shaped component tail portion, a rod-shaped component middle portion and a rod-shaped component head portion, and the inner space of the rod-shaped component main body forms a drug channel used for delivering drugs. The medicine channel is provided with at least one medicine inlet located in the bottom end of the tail of the rod-shaped component and at least one first medicine outlet located in the head of the rod-shaped component. The auxiliary part main body is in a hollow cap shape and is divided into an auxiliary part tail part, an auxiliary part middle part and an auxiliary part head part, the auxiliary part is at least sleeved on the rod-shaped part head part, namely, the rod-shaped part head part is coated in the internal space of the auxiliary part, and the hardness of the ...

DENITRATION AND WASTE HEAT RECOVERY INTEGRATED FURNACE

A denitration and waste heat recovery integrated furnace comprising a denitration system, a desulfurization system and a waste heat recovery system; an air outlet of the denitration system is connected with an inlet of a dust collector (4), an outlet of the dust collector (4) is connected with an air inlet of the desulfurization system, the air outlet of the desulfurization system is connected with an air compressor (6) of the waste heat recovery system, and the waste heat recovered by the air compressor (6) is used for heat energy utilization of other departments.

Ecological water-permeable paving structure used in collapsible loess green land and construction method of ecological water-permeable paving structure

The invention relates to an ecological permeable paving structure used in a collapsible loess green land and a construction method thereof, and belongs to the technical field of park green land paths, the ecological permeable paving structure comprises a plain soil rolling layer, a lime soil base layer and a reinforced concrete layer are laid on the plain soil rolling layer, two drainage ditches are formed in the upper portion of the reinforced concrete layer, and the drainage ditches are arranged on the lower portion of the plain soil rolling layer. A drainage layer is arranged above the reinforced concrete layer, a sand-free large-hole concrete cushion layer is arranged above the drainage layer, the sand-free large-hole concrete cushion layer is located between two drainage ditches, a plurality of permeation pipes are arranged above the sand-free large-hole concrete cushion layer, a plurality of through holes are formed in the outer walls of the permeation pipes, the outer walls of the ...

Wind power plant frequency modulation method and frequency modulation system

The invention relates to the technical field of power grid frequency regulation, in particular to a wind power plant frequency modulation method and system. A wind power plant frequency modulation method comprises an initialization step, a frequency modulation judgment step, a whole field amplitude limiting step, a power distribution step, an upward frequency modulation step and a downward frequency modulation step. According to the scheme, an extra power source is provided for fast frequency response by releasing kinetic energy of the fan rotors, meanwhile, the adjustable margin of the single fan rotor is calculated by introducing parameters of rotational inertia of the unit, and the problem that frequency secondary drop is caused during the rotor rotating speed recovery period is avoided; and during downward frequency modulation, fan propeller pitch adjustment and rotor kinetic energy absorption adjustment are combined.

Automatic charging device and method for multi-rotor unmanned aerial vehicle

... 本发明提供了种多旋翼无人机的自动充电装置及方法，其中的装置包括充电区域内的用于运送多旋翼无人机的运载小车、水平设置在充电区域中心处的无人机起降板、设置在充电区域内的边缘处且用于为多旋翼无人机进行充电的充电组件，以及，分别与运载小车、无人机起降板和充电组件通信连接的控制组件；无人机起降板上设有推杆组件，且推杆组件用于将停在无人机起降板上的多旋翼无人机推动至运载小车上及将多旋翼无人机从运载小车上拉拖至无人机起降板上。本发明的装置及方法智能化程度高且其中的装置的结构可靠，实现了对多旋翼无人机的快速且高效的自动充电，进而有效提高了多旋翼无人机的续航能力，保证了多旋翼无人机的运行及工作效率。 ...

Fault positioning method based on improved VMD and Teager energy operators

The invention belongs to the technical field of power distribution network positioning, and particularly relates to a fault positioning method based on an improved VMD and Teager energy operator, in particular to a distribution network fault positioning method based on the improved VMD and Teager energy operator. Comprising the following steps: 1, decomposing fault traveling waves by using a VMD algorithm; 2, a VMD algorithm is improved, two key parameters of the VMD are optimized through an SSA algorithm, and the minimum envelope entropy serves as a fitness value; and step 3, carrying out fault positioning based on the combination of an improved VMD algorithm and a Teager energy operator. According to the method, noise influence is eliminated while all characteristics of original traveling waves are contained, the wave head position recognition precision is enhanced, discrete signals and nonlinear signals are effectively decomposed, noise interference is avoided, the VMD decomposition ...

Virtual power plant demand response evaluation method based on Adaboost

The invention belongs to the technical field of virtual power plant evaluation methods, and particularly relates to an Adaboost-based virtual power plant demand response evaluation method. The method comprises the steps of obtaining resource data in a virtual power plant facing demand response, and constructing a virtual power plant comprehensive evaluation index system; the weights of all the samples during initialization are set to be equal weights; constructing a series of weak classifiers by using T times of iterative learning; updating weight distribution of samples on the data set according to a classification result of training after each iteration training; weak classifiers obtained after data set training learning are combined to obtain an evaluation detector; and evaluating the demand response-oriented virtual power plant by using a price detector, and giving an evaluation result. According to the demand response-oriented virtual power plant evaluation method based on the Adaboost ...

Oxygen conveying pipeline and humidifying bottle connected with same

An oxygen delivery pipeline and a humidification bottle connected with the oxygen delivery pipeline comprise a thin, long, hollow, flexible and easy-to-bend pipe body, the near end of the pipe body is connected with a humidification bottle connector in a sealed mode, the far end of the pipe body can be connected with a nasal plug or a mask, and oxygen enters the inner space of the pipe body through the inner space of the humidification bottle connector which is sealed outwards and then flows out. The humidification bottle connector is characterized in that the humidification bottle connector is provided with an anti-separation structure protruding out of and/or sunken in the outer surface of the humidification bottle connector, and when the inner surface of the humidification bottle connector is connected with a hollow oxygen output rod on the humidification bottle in a sealed mode, the humidification bottle connector is not prone to being pulled by the pipe body to be separated.

Construction underground water treatment device

The invention discloses a construction underground water treatment device, and belongs to the technical field of underground water treatment, the construction underground water treatment device comprises a treatment box, and further comprises a separation cavity; the filter plate is used for separating solids in the separation cavity from sewage; the driving mechanism is used for driving the filter plate to move up and down; sewage filtered by the filter plate is discharged through the water through hole; the baffle is used for blocking the water through hole, and a linkage mechanism is arranged at the position, corresponding to the baffle, in the treatment box; according to the scheme, the filter plate moves downwards along the inner wall of the separation cavity through the driving mechanism, so that solid residues and the like in sewage move downwards, and separation of the solid residues in the underground sewage is realized; when the filter plate descends, the baffle is driven by the ...

Full automatic reagent feeding device of integration glass steel

... 本实用新型提供种体化玻璃钢全自动加药装置，包括壳体、第电机、第二电机和支撑架，壳体内部设置搅拌室、电控室和储存室，第电机设置于壳体上表面，第二电机设置于壳体侧面，壳体上表面设置有加料口，壳体正面设置有显示屏和操控按钮。通过设置第电机和第二电机，经由加料口进入搅拌室内部的原料在电机的驱动下可以得到充分的搅拌，相比传统的单电机搅拌，可以达到更加显著的混合效果，壳体正面设置的显示屏和操控按钮便于管理人员对设备进行监控，并能得到设备的最直观的运行情况，储存室可以储存搅拌完成的药物，本设计体化玻璃钢全自动加药装置结构简单，搅拌效率高，便于管控，适于大量使用。 ...

Sunlight convergence principle verification system

The invention discloses a sunlight convergence principle verification system which comprises a primary mirror unit, a secondary mirror unit, a supporting tool unit, a system computer and an electric box. Wherein the system computer is connected with the electric box; the electric box is connected with the primary mirror unit; the primary mirror unit and the secondary mirror unit are both connected with the supporting tool unit; and after the system computer controls the primary mirror unit to unfold to a preset calibration position through the electric box, parallel light vertically irradiates the primary mirror unit, and after the parallel light is reflected twice by the primary mirror unit and the secondary mirror unit, the collimation degree and the light spot energy density of emergent beam-contracted parallel light are measured. According to the invention, the overall processing and adjustment difficulty of a ground principle prototype is reduced, and the feasibility of an expansion ...

Joint scheduling method for coordinating multiple ship locks in inland river main and tributary channel network area

The invention provides a combined dispatching method for coordinating multiple ship locks in an inland river main and tributary channel network area. The method comprises the following steps: acquiring multiple ship lock element information of the inland river main and tributary channel network; based on the obtained multi-ship lock element information of the inland river main and tributary channel network, establishing a mixed integer linear programming model of inland river main and tributary channel network area ship lock joint scheduling; solving the established mixed integer linear programming model for joint scheduling of the ship locks in the inland river main and tributary channel network region; and according to a solving result, providing an optimal scheduling scheme for the ships to pass through the multiple ship locks in the inland river main and tributary channel network region. The method fully considers the criss-cross geographic feature of the inland river main and branch ...

METHOD, SYSTEM AND DEVICE FOR TAKING OUT GROUP INSURANCE, AND COMPUTER-READABLE STORAGE MEDIUM

Disclosed is a method for taking out group insurance. The method comprises: configuring a corresponding alternative insurance scheme group when the login of an insured person of a group of customers is detected; acquiring insurance products selected, based on the alternative insurance scheme group, by the insured person, and combining same to obtain a customised insurance scheme for the insured person; classifying customised insurance schemes of all insured persons of the group of customers, and dividing the same customised insurance schemes into one category so as to obtain customised insurance schemes of each category; and counting the insured persons corresponding to the customised insurance schemes of each category, and generating, according to the customised insurance schemes of each category and the corresponding insured persons, a group insurance policy for the group of customers to take out. Also disclosed are a system for taking out group insurance, a device for taking out group ...

Application of aristolochic acid IVa in preparation of medicine for treating autoimmune diseases

The invention discloses application of aristolochic acid IVa in preparation of a medicine for treating autoimmune diseases, and belongs to the field of biological medicine. Wherein the autoimmune diseases comprise but are not limited to inflammatory bowel diseases and rheumatoid arthritis, the molecular formula of the aristolochic acid IVa is C17H11NO8, and the aristolochic acid IVa is also used for preparing a PLA2 inhibitor or a TNF alpha inhibitor. In-vitro cell experiments and animal experiments find that aristolochic acid IVa can have an obvious TNF alpha inhibiting effect by targeting PLA2, can be used as a lead compound for preparing medicines for treating arthritis and inflammatory bowel diseases, and can also be used for preparing a PLA2 inhibitor or a TNF alpha inhibitor. In addition, the aristolochic acid IVa is a natural compound without genetic toxicity and carcinogenicity, and has potential application value in the field of medicine preparation.

Straw degrading bacterium HXB17 and application thereof

The invention relates to a straw degrading bacterium HXB17 and application thereof. The straw degrading bacterium provided by the invention is bacillus pumilus HXB17 (bacillus pumilus), and the bacillus pumilus HXB17 can be used for degrading straw. The registration number of the strain in the China Center for Type Culture Collection (CCTCC) is CCTCC M 2022682. Experiments prove that the degradation rate of potato straw is 44.2%, the degradation rate of oat straw is 45.44%, the degradation rate of buckwheat straw is 44.92%, the degradation rate of chenopodium quinoa straw is 40.52%, the degradation rate of corn straw is 42.08%, and the degradation rate of wheat straw is 45.32% when the strain HXB17 is used for treating each straw for 30 days.

High-performance control method for bipolar energy storage converter

The invention belongs to the technical field of energy storage converter control optimization algorithms, and particularly relates to a high-performance control method for a bipolar energy storage converter. The system comprises a bipolar energy storage converter, and the bipolar energy storage converter comprises an energy storage battery unit, a three-phase dual-active full-bridge DC/DC converter, a DC voltage stabilization capacitor C and a grid-connected converter. The energy storage battery unit is connected to an intermediate DC voltage stabilization capacitor C of the grid-connected converter through the three-phase dual-active full-bridge DC/DC converter, and the grid-connected converter is directly connected to an AC power grid. According to the invention, the capacity selection and access of the energy storage battery are more flexible, and the service life of the system is further prolonged through a high-performance control method.

Digging and cutting machine for TRD construction method

The invention discloses a digging and cutting machine for TRD construction. The digging and cutting machine comprises multiple sets of cutters, and the multiple sets of cutters are installed on a digging and cutting machine body through bearing rings; each cutter is connected with the bearing ring through a corresponding mounting assembly; the mounting assembly comprises a trapezoidal groove formed in the bearing ring, the cutter is fixedly connected with a bearing plate, the bottom of the bearing plate is fixedly connected with a trapezoidal block, the trapezoidal block is slidably connected into the trapezoidal groove, and a locking piece is arranged between the bearing plates. When the cutter needs to be fixed, the trapezoid block can be installed in the trapezoid groove, the stability of the cutter during installation is improved, and therefore the cutter can be fixed after the trapezoid block is installed in the trapezoid groove. On the contrary, when the cutter is damaged and needs ...

Biological reaction pond membrane module

... 本实用新型提供种生物反应池膜组件，包括中空纤维膜组件和集水管，中空纤维膜组件包括平行设置的两根横向连接管，横向连接管之间连接中空纤维膜，中空纤维膜呈窗帘式，横向连接管的两端和集水管连通，集水管整体呈方形，通过将中空纤维膜组件设置于集水管形成的方形框架内部，利用两根横向连接管实现和集水管的连通，不仅结构简单，稳定，工作压力小，而且有利于内部液体的流动，窗帘式的中空纤维膜可以显著提高膜层过滤杂质的性能，去污效果好，中空纤维膜的两端都连接横向连接管，相比传统的单向开口，此双向导通的设计可以提高膜通量，进入提高出水率。 ...

Digital park integrated management method and system for service agriculture

The invention belongs to the field of agricultural management, and provides a digital park comprehensive management method for service agriculture, which comprises the following steps: acquiring information of planted crops, a substrate, a park and Internet of Things equipment by using an intelligent planting platform, and initializing the equipment; constructing a unified data source library; determining warehouse information of the storage and transportation platform, docking with the intelligent planting platform through the data source library, and adjusting warehouses corresponding to different crops for storage according to the crop types and the warehouse information of the storage and transportation platform; the comprehensive marketing platform determines crop information and storage information, and sells, transports and distributes crops; the after-sales service platform follows up the order transportation condition in real time and obtains the demand of the consumer to make ...

Coal carbon emission rapid analysis and real-time monitoring method based on laser-induced breakdown spectroscopy

The invention relates to a coal carbon emission rapid analysis and real-time monitoring method based on laser-induced breakdown spectroscopy, which comprises the following steps: firstly, carrying out spectrum acquisition on a coal sample with known component content by utilizing a laser-induced breakdown spectroscopy technology, and establishing a partial least square carbon content quantitative analysis model based on principal component analysis; and secondly, carrying out laser-induced breakdown spectroscopy collection on an online or offline coal sample, inputting spectral information into the quantitative analysis model to obtain the carbon content, and finally calculating the carbon emission of the detected coal sample after combustion according to the carbon content. According to the method, the carbon emission of the detected coal sample can be quickly and accurately given, particularly, the carbon emission of coal entering a factory and as fired on a conveyor belt can be analyzed ...

Full-automatic straight pipe arranging and conveying system

The invention discloses a full-automatic straight pipe arranging and conveying system which comprises a base, a pipe feeding device, a turnover device, a pipe conveying device and a pipe pushing mechanism. The pipe feeding device and the pipe conveying device are arranged on the two sides of the overturning device on the base respectively. And the pipe pushing mechanism is arranged at one end of the base and is aligned with a conveying wheel on the pipe conveying device. Compared with the prior art, the multi-pipe parallel conveying system has the beneficial effects that through innovative design of all structural links, rapid transfer and one-by-one arrangement of single pipes can be achieved, parallel conveying of the multiple pipes is finally completed in the mode that the multiple pipes are transported, lifted and switched together, full-automatic mechanical design is adopted in the whole links, and the production efficiency is improved. The labor productivity is greatly liberated, ...

User side dynamic adjustable load resource classification method

The invention belongs to the technical field of demand side resource classification and control, and particularly relates to a user side dynamic adjustable load resource classification method. The method comprises the following steps of: 1, randomly selecting a plurality of data objects from a whole user side dynamic adjustable load resource sample as an initial classification center; 2, calculating the Euclidean distance of each data object; 3, calculating the value of a new classification center point by using the Euclidean distance; 4, judging a new classification center point, if a condition is met, turning to the step 2, otherwise, turning to the step 5; and step 5, outputting classification results which do not meet conditions. According to the method, the GSA elbow-shaped criterion is applied to load resource classification analysis aiming at massive user-side dynamic adjustable load resources, the optimal classification number can be automatically and accurately obtained, deviation ...

CERAMIC HEAT-EXCHANGING PLATE AND CERAMIC HEAT-EXCHANGING CORE ASSEMBLED THEREBY

A ceramic heat-exchanging plate (100, 200) and ceramic heat-exchanging core (900) assembled thereby; the ceramic heat-exchanging core (900) comprises a sealing strip (3) and the ceramic heat-exchanging plate (100, 200); a plurality of ceramic heat-exchanging plates A (100) and a plurality of ceramic heat-exchanging plates B (200) are alternately laminated; edge sealing strips (3) are arranged in top-surface linear grooves (43) of the ceramic heat-exchanging plates A (100) and bottom-surface linear sealed grooves (44) of the ceramic heat-exchanging plates B (200); edge sealing strips (3) are arranged in top-surface linear grooves (43) of the ceramic heat-exchanging plates B (200) and bottom-surface linear sealed grooves (44) of the ceramic heat-exchanging plates A (100); a plurality of ceramic heat-exchanging plates A (100), a plurality of ceramic heat-exchanging plates B (200) and a plurality of sealing strips (3) are assembled as the ceramic heat-exchanging core (900); and the ceramic ...

Electromechanical system sequential diagnosis measuring point fault positioning method based on electrical topology model

The invention discloses an electromechanical system sequential diagnosis measuring point fault positioning method based on an electrical topology model. The method comprises the following steps: establishing an electrical topological structure model of a to-be-tested electromechanical system, inputting a preset number of a faulty external execution device and a fault mode, and outputting an initial fault fuzzy group; using a measuring point recommendation method to obtain recommended measuring points, using a measuring point testing method to obtain an actual measuring result, inputting the actual measuring result into the model, outputting a fault fuzzy group until the fault fuzzy group cannot be divided, using the current fault fuzzy group as a diagnosis result, positioning a fault device, and finishing diagnosis to realize sequential diagnosis measuring point fault positioning. The method has the characteristics of high operation speed, reasonable test point recommendation, few fault ...

Surface defect detection method based on computer vision

The invention relates to the technical field of computer vision, in particular to a surface defect detection method based on computer vision, which comprises the following specific steps: S1, acquiring data of any three channels by utilizing a defect picture acquisition system, inputting the data into a defect detection system, and outputting defect types, credibility, left side coordinates, right side coordinates, upper side coordinates and lower side coordinates; s2, data preprocessing; s3, feature extraction: inputting an input picture or video into a defect image feature extraction system after preprocessing operation, performing feature extraction through a Focus module, and calculating a feature vector of data so as to facilitate continuous use of subsequent services; and S4, analyzing the feature vector by using a trained algorithm through a defect identification system, and determining whether the detected object contains defect points or not. According to the method, any defect ...

Self-lifting outdoor anti-seepage power distribution cabinet

The invention discloses a self-lifting outdoor anti-seepage power distribution cabinet applied to the field of power distribution cabinets, and the power distribution cabinet is provided with an adjustable anti-seepage base and a water monitoring adjustment mechanism, so that the water monitoring adjustment mechanism can monitor the height of the ground water level in real time, and when the water level rises to a certain degree, the water level can be monitored in real time. When the water level rises, the water monitoring adjusting mechanism drives the adjustable anti-seepage base to rise, so that the power distribution cabinet body rises upwards, the situation that the bottom of the power distribution cabinet body is soaked in water due to continuous rising of the water level, and rainwater permeates into the power distribution cabinet body can be prevented, and then safety accidents caused by water entering the power distribution cabinet can be prevented. The safety performance is greatly ...

Ultralow-temperature-resistant long-service-life sealant as well as preparation method and application thereof

The invention belongs to the technical field of packaging, and particularly relates to an ultralow-temperature-resistant long-service-life sealant as well as a preparation method and application thereof. The paint comprises a component A and a component B, the component A is prepared from E51 epoxy resin, 6350 flexible epoxy resin, isophorone diisocyanate, a KH560 silane coupling agent and an organic zinc catalyst; the component B comprises a 704 imidazole curing agent, hydroxyl silicone oil, carbon black and an organic bismuth catalyst. The components react with each other and are highly crosslinked, so that the use stability of the sealant is effectively improved, and the service life of the sealant is prolonged. Meanwhile, the flexible epoxy resin and the IPDI are adopted, so that the flexibility of the sealant after curing is effectively improved, and the sealing quality of the sealant in an ultralow-temperature environment of liquid nitrogen is ensured. The hydroxyl silicone oil is ...

Chlorine-doped sulfide lithium ion superconductor material and preparation method thereof

The invention relates to a chlorine-doped sulfide lithium ion superconductor material and a preparation method thereof, and belongs to the field of new energy materials. The chemical formula of the material is Li < 7 > P < 3 > S < 11-0.5 x > Cl < x >, x is smaller than or equal to 0.4, and the material density is 1.50-1.52 g/cm < 3 >; in the material, the molar weight of P2S74 <-> accounts for 52%-59% of the total molar weight of P2S74 <-> and PS43 <->. The material is prepared by combining a liquid phase method with a secondary sintering process. A part of low-valence S < 2-> is replaced by high-valence Cl <->, and a Li < + > vacancy is generated in the material, so that lithium ion transmission is facilitated. Meanwhile, the electronegativity of Cl is higher than that of S, the local charge density is changed, the proportion of P2S74 <-> is increased, the ionic conductivity is improved, a protective passivation layer can be generated in the charge-discharge cycle of the material to lithium ...

Bonding process of square cabin large plate

The invention provides a square cabin large plate bonding process. The square cabin large plate bonding process is characterized by comprising the following steps that 1, the size of a core plate is determined; 2, a plurality of drainage grooves are formed in the front face and the back face of the core plate, and cleaning is conducted; 3, inner and outer skins are subjected to material feeding, and the bonding surfaces are cleaned; 4, the back face of the core plate and the back face of the corresponding inner skin are coated with an adhesive, and bonding is carried out; 5, the front face of the core plate and the back face of the corresponding outer skin are coated with an adhesive for bonding; and 6, pressing and curing the bonding large plate bonded with the inner skin and the outer skin to obtain the square cabin large plate. The problems that the bonding quality is reduced and the service life of the large plate is affected due to bubbles and cavities in the bonding process are effectively ...

Zirconium-based metal organic framework/reduced graphene oxide composite material and preparation method and application of working electrode

The invention relates to a preparation method and application of a zirconium-based metal organic framework/reduced graphene oxide composite material and a working electrode. The invention relates to a preparation method of a zirconium-based metal organic framework/reduced graphene oxide composite material. The preparation method comprises the following steps: (1) preparing reduced graphene oxide by adopting an acetic acid-hydriodic acid method; and (2) preparing the zirconium-based metal organic framework/reduced graphene oxide composite material by taking the reduced graphene oxide, zirconium tetrachloride and aminoterephthalic acid as raw materials and adopting a one-pot solvothermal method. The invention relates to a preparation method and application of a zirconium-based metal organic framework/reduced graphene oxide composite material and a working electrode. The preparation method comprises the following steps: firstly, preparing reduced graphene oxide (rGO) through an acetic acid-hydriodic ...

Pneumatic polishing force control device and control method

The invention belongs to the technical field of polishing machining, and discloses a pneumatic polishing force control device and method. The force sensor measures the axial contact force in the polishing process; the tilt angle sensor measures the real-time attitude of the force control device; the force control module controls contact force through a double-acting cylinder and an electric proportional valve; the transmission module restrains the movement direction of the polishing tool in the axial direction; the control platform obtains a correction voltage signal through calculation according to the collected signal, the electric proportional valve controls the air pressure of the two air cavities of the double-acting air cylinder according to the correction voltage signal, and then the force control device is controlled to output force. The output force of the device is controlled by controlling the air pressure difference between the rod cavity and the rodless cavity of the air cylinder ...

Safety anti-falling lifting device for scaffold

The invention discloses a safe anti-falling lifting device for a scaffold, which relates to the technical field of building construction and comprises a wall-attached support and a frame guide rail, a plurality of anti-falling transverse columns are mounted in the frame guide rail, and the safe anti-falling lifting device further comprises an unloading supporting mechanism which is hinged to the wall-attached support and jacks up the anti-falling transverse columns in the frame guide rail. An elastic reset assembly and a gravity reset assembly are installed between the unloading supporting mechanism and the wall-attached support, the unloading supporting mechanism is installed on the unloading supporting mechanism and movably connected with the wall-attached support, and under the acting force of the elastic reset assembly and the gravity reset assembly, the unloading supporting mechanism can reset in time and support the frame body guide rail. The elastic reset assembly and the gravity ...

CERAMIC HEAT EXCHANGING PLATE AND AIR PRE-HEATER ASSEMBLED THEREBY

Disclosed is a ceramic exchanging plate (100) and an air pre-heater assembled thereby. The air pre-heater comprises a housing (20), the housing (20) is provided with a lining (21) therein, and the housing (20) is provided with a manhole door (22) thereon. The lining (21) is provided with a heat-exchanging core (900) therein, and the heat-exchanging core (900) is composed by a plurality of interlaced superimposed ceramic heat exchanging plates (100), edge connection bolt assemblies (4), corner connection bolt assemblies (9) and edge sealing strips (3). The plurality of ceramic heat exchanging plates (100) form a crossed smoke (1) channel and an air (2) channel, and the smoke (1) channel and the air (2) channel are not communicated; a smoke (1) inlet and a smoke (1) outlet are respectively provided in a front and a back surface of the housing (20); an air (2) inlet and an air (2) outlet are respectively provided on a left and a right surface of the housing (20). The present invention has ...

Rotor unmanned aerial vehicle autonomous path planning method based on Tiancattle swarm algorithm

The invention discloses a rotor unmanned aerial vehicle autonomous path planning method based on a longcattle swarm algorithm, and belongs to the technical field of aviation military operation and civil patrol, and the method comprises the following steps: 1, constructing a rotor unmanned aerial vehicle path obstacle model, and carrying out environment modeling; 2, designing unmanned aerial vehicle performance constraint and a cost function; and step 3, performing search iteration based on a Tiancattle swarm algorithm, and connecting the positions of the unmanned aerial vehicle after each iteration by using a smooth curve after the maximum number of iterations is reached to obtain an optimal path of the rotor unmanned aerial vehicle. The advantages of the longhorn beetle algorithm and the particle swarm algorithm are fused and improved, the longhorn beetle algorithm is provided, the unmanned aerial vehicle path planning method based on the longhorn beetle algorithm not only enhances the ...

IMAGING DETECTION CHIP COUPLED WITH OPTICAL ANTENNA, AND PREPARATION METHOD THEREFOR

An imaging detection chip coupled with an optical antenna, and a preparation method therefor. The imaging detection chip comprises an optical antenna (1) and a photosensitive array (2) which are arranged in parallel. The optical antenna (1) is of an array structure composed of a plurality of antenna elements which are arranged at intervals and electrically connected. The photosensitive array (2) is of an array structure composed of a plurality of photosensitive elements which are arranged at intervals and electrically connected. The optical antenna (1) and the photosensitive array (2) have the same array scale, an antenna element of the optical antenna (1) and the photosensitive element at a corresponding position in the photosensitive array (2) are aligned with each other in the vertical direction, and the antenna element of the optical antenna (1) comprises at least one nano pointed cone of which the top faces are electrically connected with each other. The preparation method for the ...

Electricity leveling face and three -dimensional light field bimodulus imaging detection chip

... 本实用新型公开了种电调平面与三维光场双模成像探测芯片。包括电控液晶微光学结构和面阵光敏探测器；在电控液晶微光学结构上加载的信号电压的均方幅值高于某阈值时，电控液晶微光学结构等效为面阵电控液晶微透镜，双模成像探测芯片呈现三维光场成像模式，在电控液晶微光学结构上加载的信号电压的均方幅值低于所述阈值或不加载信号电压时，电控液晶微光学结构等效为对入射光波具有延迟作用的液晶相移板，双模成像探测芯片被调变或切换为具有高空间分辨率的常规平面成像模式。本实用新型具有成像模式切换灵活，调光响应快，以及目标的高空间分辨率平面图像与其局域三维形态/姿态特征兼容获取的特点。 ...

TRANSPARENT DISPLAY APPARATUS AND PREPARATION METHOD THEREFOR

A transparent display apparatus and a preparation method therefor. The transparent display apparatus comprises a display panel (100) and a total-internal-reflection photonic crystal back board (200). The display panel (100) has a display side and a light incidence side opposite the display side. The total-internal-reflection photonic crystal back board (200) is located at the light incidence side of the display panel (100). The total-internal-reflection photonic crystal back board (200) comprises a substrate (201) and a plurality of columnar structures periodically arranged inside the substrate (201), the columnar structures having a light refractive index different from that of the substrate (201). The total-internal-reflection photonic crystal back board can transform light incident onto a display panel from different directions into vertically incident light.

METHOD AND DEVICE FOR MEASURING MECHANICAL PROPERTY PARAMETERS OF TISSUE

A method and a device (100) for measuring mechanical property parameters of tissue. A data acquisition step (10) is continuously performed multiple of times, said step comprising: controlling an ultrasonic probe (101) to transmit an ultrasonic wave to target tissue (108), and receiving an echo of the ultrasonic wave to obtain first echo data; controlling the ultrasound probe (101) to transmit a focusing acoustic beam to a region of interest of the target tissue (108), so as to generate a propagation of a strain wave; within a resting time after the focusing acoustic beam is transmitted, the ultrasound probe (101) not transmitting an ultrasound signal to and/or receiving an ultrasound signal from the target tissue (108); after the resting time ends, controlling the ultrasonic probe (101) to transmit an ultrasonic wave to the region of interest of the target tissue (108) again, and to receive the echo of the ultrasonic wave, so as to obtain second echo data. The mechanical property parameters ...

Oxygen humidifying liquid bag and humidifying bottle used in cooperation with oxygen humidifying liquid bag

An oxygen humidifying liquid bag comprises a bag body made of membrane materials, humidifying liquid in an inner cavity of the bag body and a first sealing body located at an outlet of the bag body and formed by sealing a front side membrane body and a rear side membrane body, the first sealing body is of a hollow structure with a head portion, a body portion and a tail portion, a first outlet is formed in the body portion and/or the tail portion of the first sealing body, and a second outlet is formed in the head portion. At least the first outlet is in a sealed state before use, the first outlet is sealed by a weak sealing area on the first sealing body, and at least the weak sealing area extends to or is adjacent to the inner cavity of the bag body and is in an endocytosis state; the weak sealing area of the first sealing body is easily damaged by external force and loses the sealing capacity; the center of the second outlet or the position, close to the center area, of the second outlet ...

Electrically tunable polarization TN liquid crystal device and manufacturing method, application and calibration method thereof

The invention discloses an electrically tunable polarization TN liquid crystal device which comprises a first polar plate, a second polar plate, a spacer sub-group and liquid crystals, the first end of the first polar plate exceeds the first end of the second polar plate, and the second end of the second polar plate exceeds the second end of the first polar plate, so that the first polar plate and the second polar plate are arranged in a staggered manner; the first polar plate comprises a first substrate, a first ITO conductive film and a first directional film, and a plurality of parallel first directional grooves are formed in the first directional film; the second polar plate comprises a second substrate, a second ITO conductive film and a second orientation film, and a plurality of second orientation grooves which are parallel to one another are formed in the second orientation film; the second orientation groove is perpendicular to the first orientation groove; and the liquid crystal ...

LIBS (Laser-induced Breakdown Spectroscopy) online detection auxiliary device for heating and drying sample based on CO2 laser

The invention relates to an LIBS (Laser-induced Breakdown Spectroscopy) online detection auxiliary device for heating and drying a sample based on a CO2 laser, which is based on an LIBS technology, utilizes the CO2 laser to heat and dry the sample across a belt, and realizes intelligent regulation and control of a whole system through signal feedback in combination with a machine vision technology. The matrix effect caused by the moisture content of the sample to be detected in the online detection of the LIBS technology is effectively reduced, the accuracy of the online detection of the LIBS technology is improved, and the method plays an economic, convenient and important auxiliary role in the online detection of the LIBS technology.

Method and system for processing telemetry information of available equipment for dispatching using and collecting data

The method comprises the following steps: in a provincial dispatching third area, generating a use and acquisition data packet for use and acquisition data based on an E file, and distributing the use and acquisition data packet to each regional dispatching third area; wherein the acquisition data packets are in one-to-one correspondence with the city catalogues; transmitting the acquired data packet to a distribution network third area from a local dispatching third area, and transmitting a distribution network graph model, transaction management and a power-cut plan to a provincial dispatching third area after transmitting the distribution network graph model, transaction management and power-cut plan to the local dispatching third area from the distribution network third area; transformer substation information in a local dispatching jurisdiction range is sent to a distribution network dispatching technical support system of a distribution network dispatching area I from a regional intelligent ...

Electric power operation and maintenance state monitoring system

The invention relates to the technical field of electric power operation and maintenance, in particular to an electric power operation and maintenance state monitoring system which can respond to the condition of a field node in real time and help operation and maintenance personnel to quickly position a fault node. The node sensing unit is used for detecting the operation condition of the equipment box where the node is located in real time, and the detection content comprises voltage, temperature and humidity, smoke concentration and opening and closing of a box door; the transmission unit and the node sensing unit are integrally installed in the equipment box, the transmission unit is in wired data connection with the node sensing unit, and the transmission unit reads the detection content of the node sensing unit according to a certain frequency and sends the detection content; and the data processing unit is used for receiving the detection content information sent by the transmission ...

High-detection-rate infrared detector and application thereof

The invention discloses a high-detection-rate infrared detector, which comprises a vacuum chamber, a nano tip combination, a micro-channel plate, an aluminized fluorescent screen, an optical fiber light cone and a photosensitive element assembly, and is characterized in that the nano tip combination, the micro-channel plate and the aluminized fluorescent screen are arranged in a vacuum environment; the infrared incidence window, the nano tip combination, the micro-channel plate, the aluminized fluorescent screen and the visible light output window are sequentially arranged along a light path; the nano tip combination comprises a silicon substrate and a nano tip array, the nano tip array comprises a nano tip structure, and the silicon substrate and the nano tip structure are both made of silicon wafers; the tip end of each nano tip structure points to the micro-channel plate; the optical fiber cone is arranged between the aluminized fluorescent screen and the photosensitive element assembly ...

Homogenizing treatment method for special multi-component alloy

The invention discloses a homogenization treatment method of a special multi-component alloy, which comprises the following steps: S1, casting a liquid-phase special multi-component alloy in a mold, when the liquid-phase special multi-component alloy is cooled to 350-450 DEG C, reducing the temperature of the alloy in the mold to 280-340 DEG C within 7-14 minutes by adopting a rapid cooling means, and then stopping cooling; s2, when the temperature of the alloy is naturally reduced to 240-270 DEG C, the temperature is rapidly reduced to 90-140 DEG C by adopting a high-power fan; and S3, a heat preservation cover is buckled on the mold for heat preservation and cooling till the special multi-component alloy is completely solidified and formed. Through staged cooling, the production efficiency is improved while the requirement for high strength is met.

Pretreatment method of AlN bonding interface

The invention provides a pretreatment method of an AlN bonding interface, which is used for pretreating a bonding interface of an AlN material layer, a substrate and a metal material in a semiconductor device, the metal material is embedded in the substrate, and the surface of the metal material is flush with the substrate. NH3 is introduced into the substrate in the deposition chamber and the surface of the metal material to remove metal oxide on the surface of the metal material; continuously introducing Si source gas into the surface of the substrate and the surface of the metal material within a preset duration so as to pre-treat the bonding interface; and depositing an AlN material on the bonding interface to form an AlN layer, and depositing other preset materials on the AlN layer layer by layer to form a multi-layer semiconductor structure.

Method and related device for testing mass-produced vehicles

The invention discloses a method and a related device for testing mass-produced vehicles, and the method comprises the steps: obtaining a to-be-tested fault of a to-be-tested vehicle through an obtaining unit, selecting a target signal module corresponding to the type of the to-be-tested fault from a plurality of signal modules through a selection unit, and connecting the target signal module with a target controller corresponding to the to-be-tested fault, the control unit controls the to-be-tested vehicle to be in a vehicle state corresponding to a to-be-tested fault, the target signal module and the target controller simulate the to-be-tested fault to obtain a fault signal, and the execution unit is used for enabling the to-be-tested vehicle to pass a mass production vehicle test for the to-be-tested fault if the fault represented by the fault signal is consistent with the to-be-tested fault. Therefore, the device provided by the embodiment of the invention comprises a plurality of signal ...

Rectangular tube push bench attitude monitoring equipment based on multiple reference objects and adjusting method

The invention discloses rectangular pipe jacking machine posture monitoring equipment based on multiple reference objects and an adjusting method. The rectangular pipe jacking machine posture monitoring equipment comprises a supporting frame, and a displacement device, an angle device, a monitoring device and an assembling device are arranged on the supporting frame; the supporting frames are of a door type structure, arc-shaped electric sliding rails are fixedly connected between the supporting frames, an interconnection plate is fixedly connected between the arc-shaped electric sliding rails, and a mounting frame is fixedly connected between moving parts of the arc-shaped electric sliding rails. Through cooperation of the displacement device, the angle device, the monitoring device, the assembling device, the maneuvering device and the reference device, the posture of the pipe jacking machine during construction in a tunnel can be accurately monitored, posture monitoring of the pipe jacking ...

Double-row roller bearing for fan

The invention discloses a double-row roller bearing for a fan, and belongs to the technical field of bearings, the double-row roller bearing comprises an inner ring and an outer ring, the inner ring is located in the outer ring, the inner ring and the outer ring form a concentric circle structure, a roller path is formed between the inner ring and the outer ring, and a roller is arranged in the roller path; the rollers are distributed between the inner ring and the outer ring in double rows, the adjacent rollers on the same row keep the same angle, the included angle of 40 degrees is formed between the two rows of rollers, isolation blocks are arranged between the adjacent rollers on the same row, and the rollers rotate between the inner ring and the outer ring through roller paths. The flaring direction of an included angle formed by the two rows of rollers faces the outer ring, the rollers are of a cylindrical structure, the sizes of the two rows of rollers are the same, and inner teeth ...

Embedded anode carbon block surface defect detection system and method

The invention provides an embedded anode carbon block surface defect detection system and a detection method, the embedded anode carbon block surface defect detection system comprises an image acquisition module, a reasoning module and an alarm module, and the detection method of the embedded anode carbon block surface defect detection system is provided. The method comprises the following specific steps: S1, collecting an image, S2, making a training data set, S3, preprocessing and training a deep learning algorithm, S4, transplanting a model, S5, reasoning and detecting, and S6, detecting the model, transplanting the trained deep learning model into a processor RK3399pro, establishing a connection relationship between an image collector and the model in an off-line environment through the processor RK3399pro, and obtaining a deep learning model. The surface defects of the carbon block are detected in a network-free environment, the problems that manual detection of the surface defects ...

Modular production system and process for square cabin frame

The invention provides a modular production system and process for a shelter frame, and the system comprises an AGV (Automatic Guided Vehicle) for conveying parts to be welded to a welding station; the moving machine is used for moving the shelter top frame and the shelter bottom frame to be welded to a welding station; the positioning device is used for fixing to-be-welded square cabin top and bottom frames on the welding station; the welding robot is used for welding the to-be-welded square cabin top frame, the to-be-welded square cabin bottom frame and parts; the conveying machine is used for sending out the square cabin top frame and the square cabin bottom frame which are formed through welding; and the controller is used for controlling all the devices, and intelligent, efficient and automatic welding is completed through the controller. The square cabin top frame, the square cabin bottom frame and parts can be moved, fixed, welded and sent out, a large amount of labor force is liberated ...

Small sample image classification method and device based on multi-modal symmetric enhancement, and medium

The invention discloses a small sample image classification method and device based on multi-modal symmetric enhancement and a medium. The small sample image classification method comprises the following steps of basic category candidate set construction, visual feature enhancement, text feature enhancement, visual classifier training, text knowledge migration and model training and testing. According to the method, symmetric cascade enhancement operation is respectively carried out at the text end and the visual end, the new category samples are enhanced by utilizing sufficient basic category samples in a sample expansion and text expansion mode, and knowledge from different modals is exchanged through cross-modal migration, so that new category data distribution is explored to the greatest extent, and a new category of data is extracted to the greatest extent. The discrimination capability of the classifier is improved, and the accuracy of small sample image classification is improved ...

Voucher recommendation method and device, equipment and medium

The embodiment of the invention discloses a voucher recommendation method and device, equipment and a medium. The scheme can comprise the following steps: acquiring terminal position information of a user terminal; according to the terminal position information, determining a target place set from a voucher position index, wherein the distance between the target place set and the position represented by the terminal position information is smaller than or equal to a preset distance; the voucher position index is used for recording a corresponding relationship between each voucher received by the user terminal and the position information of the corresponding use place; determining a target voucher corresponding to each target place in the target place set from each voucher; sorting the target vouchers to obtain sorted target vouchers; generating first voucher recommendation information according to the sorted target vouchers; and sending the first voucher recommendation information to the ...

Multifunctional green prickleyash picking machine

The invention relates to a multifunctional green prickleyash picking machine which comprises a moving device, a drying and picking device, a collecting and conveying device, a screening device and a tail collecting device. The drying and picking device, the collecting and conveying device and the screening device are sequentially installed on the moving device from back to front, and the tail end collecting device is installed on the moving device and located below the screening device. The drying and picking device is used for drying Chinese prickly ash seeds through microwaves, picking the Chinese prickly ash seeds through a seed picking mechanism axially moving in a drying cylinder, and outputting the Chinese prickly ash seeds through a discharge port of the drying cylinder; the collecting and conveying device conveys zanthoxylum bungeanum maxim seeds to the screening device through negative pressure adsorption, the screening device achieves screening of zanthoxylum bungeanum maxim shells ...

Method for inhibiting cracking of laser cladding iron-based amorphous composite coating and improving wear resistance of laser cladding iron-based amorphous composite coating

The invention discloses a method for inhibiting cracking of a laser cladding iron-based amorphous composite coating and improving the wear resistance of the laser cladding iron-based amorphous composite coating, and belongs to the technical field of surface engineering. According to the method, the iron-based amorphous composite coating is prepared in a coaxial powder feeding laser cladding mode, iron-based amorphous alloy powder and spherical WC-Co hard alloy powder are synchronously fed out, and the adding amount of the WC-Co powder is 4-6 w.%. By adding WC-Co, in-situ generation of nano-grade and submicron-grade WC reinforced particles in the iron-based amorphous coating can be induced, the content of carbide M23C6 is increased, the carbide M23C6 is uniformly distributed in a net form and wraps a matrix phase, grains are refined, directional growth of columnar crystals at the interface of the coating and a base material is inhibited, the coating does not crack any more, and the average ...

Solar-blind ultraviolet band electron fluorescence excitation high-sensitivity detector and application thereof

The invention discloses a solar-blind ultraviolet band electron fluorescence excitation high-sensitivity detector, which comprises a vacuum chamber, a nano tip combination, a micro-channel plate, an aluminized fluorescent screen, an optical fiber light cone and a photosensitive element assembly, and is characterized in that the nano tip combination, the micro-channel plate and the aluminized fluorescent screen are arranged in a vacuum environment with the air pressure of 10 <-6 > mBar to 9 * 10 <-6 > mBar; the ultraviolet incidence window, the nano tip combination, the micro-channel plate, the aluminized fluorescent screen and the visible light output window are arranged in sequence; the holding tip combination comprises a substrate and a holding tip array, wherein the holding tip array comprises a plurality of holding tip structures which are distributed in an array; the tip end of each nano tip structure points to the micro-channel plate; the optical fiber cone is arranged between the ...

High-pressure jet grouting pile

The high-pressure jet grouting pile comprises a pile body, a plurality of sets of fixing assemblies are arranged on the side wall of the pile body, and each fixing assembly comprises a grounding rod connected to the pile body in a sliding mode; a triggering assembly is arranged at the bottom of the pile body and is in transmission connection with the multiple sets of ground binding rods through a transmission assembly. When the pile body is installed in the base, the trigger assembly touches the ground, the multiple sets of ground binding rods are driven by the trigger assembly to slide synchronously, so that the ground binding rods are inserted into the base, and the pile body is fixed. When the pile body is installed in a base, the triggering assembly touches the ground, the multiple sets of ground binding rods are driven by the triggering assembly to slide synchronously, the ground binding rods are inserted into the base, the pile body is fixed, and therefore when the pile body is installed ...

Shield tunnel vertical jacking device and using method

The invention relates to the field of vertical jacking devices, in particular to a shield tunnel vertical jacking device and a using method.The shield tunnel vertical jacking device comprises a pipe jacking machine head and a jacking device body, the jacking device body is arranged below the pipe jacking machine head and used for providing tunneling force for the pipe jacking machine head, and a pipe jacking piece is arranged between the jacking device body and the pipe jacking machine head. The jacking device is used for transmitting tunneling force of the jacking device to a pipe jacking machine head, and is characterized in that a support is arranged between the pipe jacking machine head and the jacking device and comprises an upper supporting frame and a lower supporting frame, supporting devices are arranged on the upper supporting frame and the lower supporting frame and used for bearing pipe jacking pieces, a horizontal cross beam is installed on one side of the lower supporting ...

Protective slurry and preparation method thereof, protective sleeve containing protective slurry, preparation method of protective sleeve and application of protective sleeve in laser welding of stainless steel

The invention belongs to the technical field of laser welding, and particularly relates to protective slurry and a preparation method thereof, a protective sleeve containing the protective slurry, a preparation method of the protective sleeve and application of the protective sleeve in laser welding of stainless steel. The protective sleeve is prepared by adopting a method of internally winding the base material and externally coating the protective slurry, and is applied to stainless steel laser welding. The protective slurry is prepared from 107 silicon rubber, methyltris (methylethylketoximino) silane, hydrogen-containing silicone oil, dicumyl peroxide, a KH550 coupling agent, a silica powder-aluminum hydroxide mixed filler, a catalyst, MQ silicon resin and silicon nitride. The base material wound inside is tightly combined with the stainless steel laser welding part, is not limited by the shape of the workpiece, and is suitable for various workpieces with special-shaped sections; the ...

Combined type membrane bioreactor

... 本实用新型提供种复合式膜生物反应器，包括高位水箱、中空纤维膜组件、生物反应器和空气泵，中空纤维膜组件和生物反应器之间设置有中间隔板，高位水箱连通生物反应器，生物反应器底部连接排泥管，空气泵为设置于中空纤维膜组件和生物反应器内部的曝气管供气，生物反应器的底部截面为等腰梯形，通过同时采用微生物的新陈代谢作用和膜层的过滤，不仅可以达到较好的去污效果，而且可以减少中空纤维膜组件的清洗频率，节省成本，生物反应器底部连接排泥管，当需要排污的时候，可以直接通过排泥管实现污泥的清除，操作便捷，增强废水处理能力，克服污泥膨胀，提高运行稳定性，与膜表面接触的混合液中生物浓度低，可以有效地减缓膜污染。 ...

Full-automatic U-shaped pipe loading device

The invention discloses a full-automatic pipe loading device for U-shaped pipes. The full-automatic pipe loading device comprises a conveying frame; the push rod mechanism is used for pushing the arc-shaped end of the U-shaped pipe and is arranged on the conveying frame in a sliding manner; the clamping mechanism is used for clamping the straight pipe end of the U-shaped pipe and located at the path of the push rod mechanism; the push rod mechanism passes to the clamping mechanism, and the clamping mechanism is adjusted through displacement so as to prevent the clamping mechanism from hindering conveying of the U-shaped pipes on the conveying frame. Compared with the prior art, the U-shaped pipe assembling device has the beneficial effects that the pure mechanical automatic structural design is adopted, the integrated assembling effect of the U-shaped pipe is achieved, corresponding adjustment can be conducted according to the size and the assembling position of the U-shaped pipe, and the ...

Carbon electrode quality detection and classification intelligent terminal

The invention provides an intelligent terminal for quality detection and classification of carbon electrodes. The intelligent terminal comprises a PCB, a main control module, a network module, a power management module, a USB interface module, a display module and a communication module. According to the invention, on the basis of the embedded neural network processor chip and the integrated circuit module, the carbon electrode image is collected for identification and classification, identification and classification of surface defects of the carbon electrode are realized, and the function of identification and classification of the carbon electrode can be completed on terminal computing power. The terminal can operate in an off-line mode during operation and can work without accessing a network, the problems of network time delay, bandwidth and dependence of a third-party platform are solved, and data safety is guaranteed. And the device can be independently used as an equipment core ...

Steel bar connector construction device and method

The invention discloses a steel bar connector construction device and method, and relates to the technical field of steel bar construction. The problems of labor saving and high efficiency are solved. The device specifically comprises a shell, a screwing part is arranged on the inner side of the shell, the screwing part comprises two driven wheels and a driving wheel which form an isosceles triangle structure, the outer side walls of the driven wheels are rotationally connected with a first fixing frame through driven shafts, and the first fixing frame is fixedly installed on the side wall of the shell; the outer side wall of the driving wheel is connected with a movable frame through a main shaft, the movable frame is in sliding fit with the inner side of the shell through a first sliding rod, and the inner side of the movable frame is provided with a rotation driving part used for driving the main shaft to rotate. The two driven wheels forming the isosceles triangle structure and the ...

Water conservancy project gate anti-collision device

The utility model discloses a water conservancy project gate anti-collision device in the field of ship lock anti-collision devices, which comprises a first baffle, a rotating shaft rotatably mounted in a rotating hole, a second baffle fixedly mounted on the surface of the rotating shaft, a first gear fixedly mounted on the upper end face of the rotating shaft, and a sleeve fixedly mounted on the upper end face of the first baffle. A rotating groove is formed in the lower end face of an inner cavity of the sleeve, a connecting rod is rotatably installed in the rotating groove, a second gear is fixedly installed at the upper end of the connecting rod and meshed with the first gear, and a first spring is fixedly installed on the lower end face of the second gear. The upper end face of the rotating plate is fixedly connected with the lower end face of the first spring, a second mounting groove is formed in the inner wall of the sleeve, and a rotating ring is rotationally mounted in the second ...

Wind turbine generator control method and system

According to the wind turbine generator control method and system provided by the invention, by considering the pneumatic inflow wind speed fluctuation of the wind turbine generator and the rotating speed fluctuation of the wind turbine generator in a short period, whether the current pneumatic inflow fluctuation can influence the stability of the dynamics of the wind turbine generator is judged, and the fluctuation index of the wind turbine generator is calculated; and an instruction is issued to a fan master control system according to the fluctuation index, so that the master control system carries out variable pitch or shutdown according to the situation. According to the method, the dynamic oscillation or instability of the unit caused by the logic imperfection of the main control system when the pneumatic inflow fluctuation is relatively large can be effectively avoided.

Cooperative course and speed planning method under fixed time based on A star algorithm

The invention provides a course and speed collaborative planning method under a fixed time based on an A star algorithm, and relates to the technical field of ship route design, and the method comprises the following steps: extracting environment data under a corresponding time in a specified region, and carrying out the rasterization of a sea area in the range; the original AIS data is processed, and leg feature extraction is carried out; a prediction model of the oil consumption rate and the propeller rotating speed is constructed and trained through the characteristic values of the legs; improvement is carried out on the basis of a conventional A star algorithm process, a navigational speed planning function is added, and a lowest fuel consumption route with time limitation is output. According to the method, the oil consumption can be reduced while the ship can effectively avoid the heavy storm area, the navigation decision is more flexible, and the method can adapt to complex and changeable ...

Connecting assembly

The invention discloses a connecting assembly which comprises a flexible soft seat, an inner concave cavity is formed in one end of the flexible soft seat, a first connecting part and a connecting seat are arranged in the inner concave cavity, a first connecting hole is formed in the first connecting part, a first connecting piece is connected to the connecting seat, and a first detachable connecting structure is arranged between the first connecting piece and the connecting seat. The first connecting piece is further provided with a second connecting structure. When the two connecting assemblies are connected, the second connecting structure of one connecting assembly is connected to the first connecting hole of the other connecting assembly, and the first connecting hole of the connecting assembly is connected to the second connecting structure of the other connecting assembly. The first detachable connecting structure is a clamping structure which can enable the first connecting piece ...

Three-dimensional visualization method and device for assisting rejuvenation of ancient trees

The invention provides a three-dimensional visualization method and device for assisting the rejuvenation of an ancient tree, and the method and device are applied to a server, and are used for obtaining the point cloud data of a space which is a space corresponding to a target tree; extracting first point cloud data of the target tree according to the point cloud data; the first point cloud data comprises trunk point cloud data, branch point cloud data and leaf point cloud data; performing separation processing on leaf point cloud data in the first point cloud data to obtain second point cloud data; the second point cloud data comprises trunk point cloud data and branch point cloud data; constructing each piece of point cloud data in the second point cloud data into a surface patch, and smoothing the surface patch to obtain third point cloud data; removing branch point cloud data which are not connected with the branch point cloud data in the third point cloud data to obtain fourth point ...

Animal gender recognition method, system and equipment based on deep learning and medium

The invention discloses an animal gender identification method, system and device based on deep learning, and a medium. The method comprises the steps of obtaining a to-be-identified animal face image; inputting an animal face image to be recognized into the trained animal gender recognition model, and outputting an animal gender recognition result; wherein the trained animal gender recognition model is used for performing basic feature extraction on an animal face image to be recognized to obtain a basic feature map; performing deep feature extraction on the basic feature map to obtain deep feature maps of different stages; performing feature enhancement on the deep feature maps in different stages to obtain enhanced feature maps in different stages; adding elements of the enhanced feature maps in different stages one by one to obtain an optimized feature map; performing two rounds of multi-scale aggregation and pooling operation on the optimized feature map to obtain a final feature map ...

Multi -functional back vertebra lag

... 本实用新型公开了种多功能背部脊椎骨防护套，属于运动防护用具技术领域；所述的弹性防护垫外壁竖直方向设有排相互套接的三角形中空防护板；所述的弹性防护垫上半段设有胸部绑带；所述的肩部定位带的端与胸部绑带连接；所述的肩部定位带的另端与弹性防护垫连接；所述的肩部定位带上设有调节扣；所述的弹性防护垫的底部设有腰部绑带。它结构设计合理，操作方便，灵活性好，稳定性好，防护性能佳，多层防护提高了使用的安全度，适用的范围广。 ...

Larix glarch forest site quality and productivity model construction method

The invention discloses a method for constructing a site quality and productivity model of a larch forest, which comprises the following steps of: collecting various data of the larch forest, including but not limited to data in the aspects of soil, climate or terrain, processing the collected data, selecting a proper model according to a target and data characteristics required to be predicted, and training the model by using a training set to obtain the site quality and productivity model of the larch forest. Model parameters are adjusted; according to the method, a model training mode is adopted, rules and relations hidden in data can be found by learning a large amount of data, the model training mode is adopted, the precision and accuracy of the model can be improved through continuous iteration and optimization, so that a more reliable result is obtained, new data and features can be continuously added according to needs, and the method is suitable for large-scale popularization and ...

Excavator working condition identification method and system based on DAGSVM algorithm

The invention provides an excavator working condition recognition method and system based on a DAGSVM algorithm. The method comprises the following steps that S1, an excavator working condition recognition deep learning model is established based on the DAGSVM algorithm; s2, pressure data of the two main pumps in the preset time in the actual working process of the excavator are collected and preprocessed; s3, performing feature extraction on the preprocessed pressure data to obtain feature values; s4, performing normalization processing on the feature value to obtain a feature vector; and S5, inputting the feature vector into the excavator working condition identification deep learning model, and obtaining a corresponding excavator working stage according to a model output result. According to the method, the working stages of the excavator are identified by using the pressure data generated by the main pump when the excavator works and combining the DAGSVM algorithm, the required data ...

Driving circuit, display device and noise reduction method

The invention discloses a driving circuit, a display device and a noise reduction method, and the driving circuit comprises an analog voltage input end which is used for outputting a first voltage signal; the analog voltage output end is used for outputting a second voltage signal according to the first voltage signal; the noise reduction circuit is positioned between the analog voltage input end and the analog voltage output end; the noise reduction circuit comprises an alternating current sampling module connected with the analog voltage input end and used for extracting an alternating current ripple signal in the first voltage signal, and a ripple noise reduction module, one end of which is connected with the alternating current sampling module, the other end of which is connected with the analog voltage output end and used for carrying out noise reduction processing on the alternating current ripple signal, and the other end of which is connected with the analog voltage output end.

Vibration and impact reducing structure of rudder sheet

The invention relates to the technical field of rudder piece vibration control, and discloses a rudder piece vibration and impact reduction structure, and the determination process of the rudder piece vibration and impact reduction structure comprises the following steps: (1) classifying the system damping of a rudder piece, (2) equivalently regarding the motion of damping particles in the rudder piece as a gas-phase-like flow with a low Reynolds number, and obtaining the equivalent viscous damping of a gas-phase-like flow system; (3) obtaining an equivalent friction damping parameter; (4) the damping parameters obtained in the step (2) and the step (3) are applied to modeling of bending motion and twisting motion; (5) calculating the damping ratio of the rudder sheet system under different damping particle configurations under the rudder sheet system; and (6) rudder sheet installation: configuring damping particles on the rudder sheet based on the optimal result of damping ratio simulation ...

Filter removal fault simulation device, method and system

The embodiment of the invention provides a filter removal fault simulation device, method and system. The device comprises a particle filter, a first pipeline, a second pipeline, a third pipeline, a gate valve and a pressure difference detector, and when a gate plate is located at a first position, airflow at a first airflow port flows to the first end of the pressure difference detector through the second end of the first pipeline; airflow at the first airflow port flows through the second pipeline through the third end of the first pipeline and then reaches the second end of the differential pressure detector; when the flashboard is located at the second position, the airflow at the first airflow port flows to the first end of the differential pressure detector through the second end of the first pipeline; the air flow at the second air flow port flows to the second pipeline through the third pipeline and then reaches the second end of the pressure difference detector; and the pressure ...

Power distribution network single-phase earth fault discrimination method and device based on particle swarm optimization

The invention relates to a particle swarm optimization-based power distribution network single-phase earth fault discrimination method and device, and the method comprises the steps: analyzing the distribution characteristics of negative-sequence and zero-sequence currents in a power distribution network system, and building a function relation between zero-sequence and negative-sequence steady-state currents on a fault path of the power distribution network system and a fault distance through combining with line parameters; and taking the function relationship as a target function, and iteratively obtaining an accurate fault distance according to a particle swarm algorithm. According to the invention, fault discrimination and distance measurement are completed by using the negative-sequence and zero-sequence steady-state current, so that the influence of noise and the like on transient signals is avoided, auxiliary judgment of voltage signals is not needed, and the algorithm reliability ...

Multi-hop task unloading method in Internet of Things system

The invention discloses a multi-hop task unloading method applied to a large-scale heterogeneous Internet of Things system under the condition of incomplete information. In order to effectively cope with the situation that obtained information is incomplete and give a corresponding joint unloading decision and a routing strategy, the two-stage game theory method with incomplete information, provided by the invention, comprises the following steps: estimating unloading cost by Internet of Things equipment according to locally stored historical data and a hierarchy-based minority game method; an unloading decision is made based on the estimated unloading cost and the local cost; the base station schedules a transmission path unloaded by the Internet of Things equipment by using a routing decision based on the game theory according to the received unloading request, and sends the transmission path to the Internet of Things equipment; and according to the transmission path, the Internet of ...

Ultrahigh-strength light steel as well as preparation method and application thereof

The invention provides ultrahigh-strength light steel as well as a preparation method and application thereof, and belongs to the technical field of alloy materials. The ultrahigh-strength light steel provided by the invention comprises the following elements in percentage by mass: 0.9-1.15% of C, 9-11% of Al, 26-30% of Mn, 3-7% of Ni and the balance of Fe. Results of the embodiment show that the density rho of the ultrahigh-strength light steel is smaller than or equal to 6.65 g/cm < 3 >; at the room temperature, the yield strength is larger than or equal to 1150 MPa, the tensile strength is larger than or equal to 1350 MPa, and the ductility is larger than And under the condition of-196 DEG C, the yield strength is larger than or equal to 1740 MPa, the tensile strength is larger than or equal to 1900 MPa, and the ductility is larger than or equal to 20%.

Star sensor with ultra-large field of view

The invention relates to a super-large field-of-view star sensor, and belongs to the field of optical imaging sensors for spacecrafts. A small-aperture sub-view field optical element array and a relay optical element are adopted to form an optical system, fixed star light in an ultra-large view field range is introduced into a single detector for imaging, an original star map containing fixed star image points of the sub-view field array is generated, calibration correction in the sub-view fields and calibration correction between the sub-view fields are carried out on the original star map, and the original star map is obtained. And obtaining an observation star point information queue with a uniform coordinate system in an ultra-large view field range, and performing attitude determination with consistent three-axis precision. The field of view of the star sensor is greatly improved.

Device and method for automatically measuring form and location tolerance of large-size shell section

The invention discloses a large-size shell section form and location tolerance automatic measuring device, and the device is characterized in that an upper end surface measuring sensor is aligned with the upper end surface of a measured shell section, and is used for obtaining the feature data of the upper end surface of the measured shell section when the measured shell section rotates; the lower end surface measurement sensor is aligned with the lower end surface of the measured shell section and is used for acquiring feature data of the lower end surface of the measured shell section when the measured shell section rotates; the empennage measurement sensor is used for acquiring characteristic data of an empennage central surface when the measured shell section is fixed; the end frame measuring sensor is aligned with the cylindrical surface of the upper end frame or the cylindrical surface of the lower end frame of the measured shell section, and is used for obtaining the characteristic ...

Power failure alarm system based on network monitoring

The invention relates to the technical field of fault alarm, in particular to a power fault alarm system based on network monitoring, which ensures that operation and maintenance personnel can quickly locate the position of a fault node. Comprising a base, a shell is fixedly installed on the base, an alarm lamp is fixedly installed on the shell, the alarm lamp is electrically connected with a monitored node, the alarm lamp is in signal connection with a monitoring system, an independent battery pack is further arranged on the outer wall of the shell, a first binding post is arranged on the battery pack, and a second binding post is further arranged on the outer wall of the shell. The power supply line of the alarm lamp is also connected with the first binding post and the second binding post. The battery pack is connected in parallel with the power supply of the node. Wherein the shell is provided with at least three groups of through holes, each group of through holes is internally provided ...

Primary and secondary fusion equipment detection device based on genetic algorithm and design method

The invention discloses a primary and secondary fusion equipment detection device based on a genetic algorithm and a design method. The design method comprises the following steps: collecting power system analog quantity; the method comprises the following steps: randomly generating an initialized population according to parameters of transistors forming an amplifying circuit, amplifying circuit supplementary capacitance and amplifying circuit bias current; a chromosome code is input, and a circuit simulation program Hspice is operated to generate a corresponding. Lis output file; evaluating each circuit performance index in the output file to obtain an objective function fi, and performing selection operation, crossover operation and mutation operation according to a fitness function to form a next-generation population; and the expected performance index is obtained. Compared with a traditional detection platform, the detection device has the advantages that an operational amplifier circuit ...

Subway crew plan optimization compilation method based on travel path

The invention discloses a subway crew plan optimization compilation method based on a passenger-on-duty path, and the method comprises the steps: taking a driver passenger-on-duty path as a modeling entry point, and continuously converting the combination of crew segments into a space-time state network diagram based on the driver passenger-on-duty path; embedding the continuation of each shift and the matching between the drivers and the shifts into the circulation of a driver and passenger on-duty path chain, compiling a corresponding solving algorithm by using an alternating direction multiplier method and an improved particle swarm algorithm, and generating a subway crew plan based on an archiving shift system; compared with manual programming, the programming method provided by the invention has the advantages that the optimization rate reaches 15.7%, the passenger duty efficiency is improved by 9.37%, the optimization rate reaches 13.17%, meanwhile, the total work intensity balance ...

Air conditioner indoor unit, control method thereof and air conditioner

The invention discloses an air conditioner indoor unit, a control method of the air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a machine shell, an indoor heat exchanger, a draught fan, a light plasma module, a light sensor, a display panel and a controller. The controller is configured to obtain the brightness detected by the light sensor in response to an instruction for starting the sterilization function of the air conditioner; when it is judged that the brightness is larger than the preset brightness threshold value, the light plasma module is controlled to execute a first sterilization mode, and the first sterilization mode comprises the steps that the light plasma module is controlled to emit positive and negative ions and ultraviolet rays at the same time, the rotating speed of the draught fan is controlled to be adjusted to the maximum rotating speed, and the execution time of the first sterilization mode reaches first preset time; ...

Solid-state battery based on interface in-situ polymerization and preparation method thereof

The invention discloses a solid-state battery based on interface in-situ polymerization and a preparation method thereof. The preparation method comprises the following steps: adding a 2-ureido-4 [1H]-pyrimidone methyl methacrylate monomer, pentaerythritol tetraacrylate and a thermal initiator into a solution of organic lithium salt and ceramic electrolyte powder to obtain a mixed solution, soaking with the mixed solution, dropwise adding a ceramic electrolyte sheet, and then assembling with a positive electrode material and a negative electrode material to obtain the lithium ion battery. And heating and polymerizing the precursor at a high temperature to obtain the solid-state battery. The solid-state interface with good physical characteristics, chemical stability and electrochemical characteristics can be obtained, and the solid-state lithium battery with excellent interface performance can be further obtained.

Robot, control method and device thereof and readable storage medium

The invention provides a robot, a control method and device of the robot and a readable storage medium. The control method comprises the steps that a point cloud image containing a grabbed object is obtained; the point cloud image is input into a preset grabbing network so that the preset grabbing network can conduct classification prediction according to the point cloud image, and a contact point of the fingertip and the grabbed object is obtained; according to the coordinate information of the contact point, constructing a coordinate system taking the contact point as an original point and a first rotation matrix opposite to a world coordinate system; determining the coordinate information of the joint according to the coordinate information of the contact point, the vector between the joint and the fingertip and the first rotation matrix; according to the coordinate information of the joint, determining a transfer matrix of a coordinate system taking the joint as an original point relative ...

Automatic order dispatching and seedling raising control method and system for seedling demand order

The invention provides an automatic order dispatching and seedling raising control method and system for a seedling demand order, and the method comprises the steps: carrying out the order merging according to the seedling variety, seedling specification and order time of the seedling demand order, and obtaining different batches of order dispatching tasks; searching seedling raising sheds and seedling raising beds corresponding to the seedling raising sheds required by the order distribution tasks of each batch, and determining a seedling raising starting day and a seedling raising period; triggering a farming task distribution mechanism according to the obtained seedling culture starting day and the seedling culture period, and generating a farming seedling culture distribution task to guide seedling culture; according to the method, different types of seedling demand orders are merged in batches, and orders of the same crop and the same variety, different demand orders of different specifications ...

Multifunctional coordination control method and device for wind power plant energy storage system and terminal equipment

The invention is suitable for the technical field of new energy, and provides a multifunctional coordination control method and device for a wind power plant energy storage system and terminal equipment, and the method comprises the steps: constructing a power curve correction function and an energy management time transfer function; when the current energy storage adjustment mode of the target wind power plant is grid-connected adjustment, obtaining a conventional power limiting condition of the target wind power plant; when the conventional power limitation does not exist in the target wind power plant, judging whether a temporary power limitation plan exists in a future preset duration or not, if so, preferentially calling an energy management time transfer function, and otherwise, preferentially calling a power curve correction function; when the target wind power plant has the conventional power limitation, judging the main economic loss in the same month of the last year; when the ...

Surface treatment method and tool after small hole machining

The invention discloses a surface treatment method and tool after small hole machining. The surface treatment method comprises the steps that firstly, a workpiece with small machining holes is placed on a workbench and fixed; then, a power assembly is installed above the small machining hole of the workpiece, a fixed abrasive flexible wire harness is clamped on an elastic chuck at the lower end of the power assembly, and the lower end of the fixed abrasive flexible wire harness is guided by a guiding device to be led into the small machining hole of the workpiece and penetrates out of the small machining hole; when the power assembly works, the fixed abrasive flexible wire harness is driven by the power assembly to rotate and move up and down in the small machining hole in a reciprocating mode. And abrasive particles on the fixed abrasive flexible wire harness generate extrusion, friction, micro-grinding and cold plasticity effects with the surface of the machined small hole under the action ...

Protection device suitable for laying of multiple power cables

The invention relates to the technical field of electrical engineering, in particular to a protection device suitable for laying of a plurality of power cables, which comprises a protection box, a plurality of wire separation plates are arranged in the protection box, a plurality of wire separation holes are uniformly formed in the wire separation plates, and a plurality of belt shafts are uniformly arranged on two side walls of the lower part of the protection box along the length direction of the protection box. The multiple belt shafts are sleeved with driving belts, a moving plate is connected between the symmetrical driving belts, multiple vertical supporting pipes are arranged on the upper surface of the moving plate, a separation groove allowing the supporting pipes to penetrate through is formed below each branching hole, a conversion head is installed on each supporting pipe, and a clamping cap is arranged on the right side face of each conversion head. Each clamping cap is internally ...

Visible light polarization camera and preparation method and application thereof

The invention discloses a visible light polarization camera which comprises a camera lens, an electrically tunable polarization TN liquid crystal device, an analyzer, an image sensor and an image output unit, the electrically tunable polarization TN liquid crystal device comprises a first pole plate, a second pole plate, a spacer group and liquid crystals, and the first end of the first pole plate exceeds the first end of the second pole plate; the second end of the second pole plate exceeds the second end of the first pole plate, the first pole plate comprises a first substrate, a first ITO conductive film and a first orientation film, and a first orientation groove is formed in the first orientation film; the second polar plate comprises a second substrate, a second ITO conductive film and a second directional film, and a second directional groove is formed in the second directional film; the second orientation groove is perpendicular to the first orientation groove; and the liquid crystal ...

Medicine outlet micro-opening type anorectal dosing device

A medicine outlet micro-opening type anorectal dosing device comprises a rod-shaped component with a hollow main body and an auxiliary component, a medicine channel used for conveying medicine is formed in the inner space of the main body of the rod-shaped component, and the medicine channel is provided with at least one medicine inlet located in the bottom end of the tail of the rod-shaped component and at least one first medicine outlet located in the head of the rod-shaped component; the main body of the auxiliary part is in a hollow cap shape and at least sleeves the head of the rod-shaped part, and at least one second medicine outlet communicated with the internal space of the auxiliary part is formed in the auxiliary part; the sealing body is partially embedded into or completely wrapped in the inner space of the auxiliary component, and a sealing part of the sealing body enters the medicine channel through the first medicine outlet so as to seal the first medicine outlet outwards ...