落地灯（瓦灯）

吊灯（瓦灯Tile light双层）

Textile processing procedure parameter detection and prediction method and system and storage medium

The invention discloses a textile processing procedure parameter detection and prediction method and system and a storage medium, and relates to the technical field of textile, and the method comprises the steps: obtaining all processing procedures of textile processing, and determining processing equipment needed by each processing procedure according to each procedure; establishing an operation parameter prediction model of the processing equipment; monitoring the processing parameters of the current batch of textiles to obtain a real-time processing parameter curve; updating a historical operation parameter curve of the processing equipment in combination with the real-time processing parameter curve; judging whether the current batch of textiles meet qualified requirements or not; according to the historical operation parameter curve of the processing equipment, whether the processing equipment can meet the processing requirements of the next batch of textiles or not is predicted. The ...

Projection lens and electronic equipment

The invention discloses a projection lens and electronic equipment. The projection lens sequentially comprises a first lens group, a second lens group and an aspheric reflector in the incident transmission direction of an image light beam, the first lens group, the second lens group and the aspheric reflector are located on the same optical axis, the focal power of the first lens group is positive, the focal power of the second lens group is positive, and the focal power of the aspheric reflector is negative. The focal power of the aspheric reflector is negative; a first air gap exists between the first lens group and the second lens group, the range of the first air gap is 30 mm-45 mm, and the first air gap accounts for 12%-17% of the total optical length of the projection lens.

Power data processing method, device and system and storage medium

The invention discloses a power data processing method, device and system and a storage medium, and belongs to the technical field of data processing. The method comprises the following steps: receiving power data from terminal equipment; judging whether a data processing program corresponding to the power data exists or not; if the data processing program corresponding to the electric power data does not exist, acquiring the data processing program corresponding to the electric power data from a central node; processing unstructured data in the power data into structured data; processing the structured data based on the data processing program to obtain a data calculation result; and storing the data calculation result. According to the method, the data transmission pressure between the center node and the edge node is reduced.

Data security leakage-proof management method and system based on big data and medium

The embodiment of the invention provides a data security leakage-proof management method and system based on big data and a medium. The method belongs to the technical field of data leakage-proof management. The method comprises the following steps: performing classification and data distribution description on data resources of a user, establishing a data resource map portrait, extracting key levels and sensitive data, performing identity correlation identification and anomaly judgment on an access end according to key sensitive data related to behaviors of the access end, and determining the identity correlation of the access end according to the key sensitive data related to the behaviors of the access end. Tracing to find a data source according to the abnormal behavior information, establishing a virtual scene model for a data source module, and performing risk coefficient assessment, risk leakage-proof response and mechanism adjustment on the information; according to the method, ...

GLP-1 DERIVATE DLG3312 AND SOLID-PHASE CHEMICAL SYNTHESIS METHOD THEREOF

Provided in the present invention is a GLP-1 derivate DLG3312 with the structure X-Y-X, wherein the sequence represented by X is H-X8-EGTFTSDVSSYLEGQAAKEFIAWLVKGRG, X8 is any one of A、G、dA or V, and Y represents diaminocarboxylic acid comprising Lys and Om. Also provided in the present invention are the solid-phase chemical synthesis method of the GLP-1 derivate DLG3312 and the use thereof in preparing a drug for treatment of diabetes.

SERVO VIBRATION GENERATING APPARATUS OF LINEAR FRICTION WELDING MACHINE

A servo vibration generating apparatus of a linear friction welding machine, comprising a servo motor (1), a box body (2), a shaft coupler (3), a transmission shaft (4), a guide rail (5), a sliding block (6), a cam disc (7), a vibrating table (8), a first push rod (9), a second push rod (10), a rolling bearing (11), and a support bearing (12), the box body (2) being divided into two chambers, and being arranged on the servo motor (1), the transmission shaft (4) being arranged in the upper chamber of the box body (2) by means of the support bearing (12), the transmission shaft (4) being connected to a rotating shaft of the servo motor (1) in the lower chamber by means of the coupler (3), the cam disc (7) being sleeved over the transmission shaft (4), the guide rail (5) being arranged on the upper surface of the box body (2), the vibrating platform (8) being connected to the guide rail (5) by means of the sliding block (6), one end of the first push rod (9) and the second push rod (10) respectively ...

HYBRID PROPULSION SYSTEM

Disclosed is a hybrid propulsion system, comprising an engine (100), a first motor (101), a second motor (102), a power coupling device (200) and a drive shaft (300). The power coupling device (200) includes a first propeller shaft (201) connected with said engine ( 100) via a first clutch (11), a second propeller shaft (202) connected with the rotor of said first motor (101), and a third propeller shaft (203) connected with the rotor of said second motor (102). By a planetary gear mechanism with an inner ring gear (204), said first propeller shaft (201), said second propeller shaft (202) and said third propeller shaft (203) come into driving engagement with one another. Said inner ring gear (204) and said third propeller shaft (203) are individually selectively in driving engagement with said drive shaft (300). In accordance with the above-mentioned technical solution, the power from the engine (100), the first motor(lOl) and the second motor (102) is coupled together via the power coupling ...

But location frock of angle modulation

... 本实用新型涉及种定位工装，特别涉及种可调角的定位工装。所述的工装包括磁铁(1)、钢制平板(2)和中轴(3)，钢制平板(2)上固定有磁铁(1)，两个钢制平板(2)通过中轴(3)铰接。该技术方案在型架焊接中，能够实现对方钢角度的调节和固定，提高了各方钢的定位和各种角度的调整精度，同时还缩短了框架的焊接周期。 ...

Appearance that disinfects is nursed in operation

... 本实用新型公开了一种手术护理杀菌仪，包括显示屏、杀菌仪主体、干燥室和X射线杀菌室，所述杀菌仪主体连接柜门，所述柜门设有操作键盘，所述操作键盘设有时间控制开关以及设置在时间控制开关一侧的功率控制开关，所述操作键盘顶部设有显示屏，所述杀菌仪主体内部设有干燥室，所述干燥室设有通风口。本实用新型通过打开电源开关，设备进行工作，将使用过的医用器材放入X射线杀菌室，通过功率控制开关和时间控制开关选择工作功率和工作时间，然后将医用器材放入液体杀菌室进行杀菌，本实用新型通过不同的方式，对各种各样的细菌进行消毒，提高了杀菌效率，保证了医用器材的安全性，防止病毒的传染和感染。 ...

Positive pole piece, preparation method thereof and battery

The invention discloses a positive pole piece, a preparation method thereof and a battery. The method for preparing the positive pole piece comprises the following step: sputtering a metal vanadium target material by adopting a magnetron sputtering method and/or a pulse laser sputtering method so as to deposit a vanadium oxide film on a conductive substrate, thereby obtaining the positive pole piece. The method not only is simple in preparation process and suitable for large-scale industrial production, but also can be used for preparing the positive pole piece with relatively good electrochemical stability and relatively high specific capacity, and is wide in application range.

New energy light commercial vehicle wire harness junction box upper cover

The utility model discloses a new energy light commercial vehicle wire harness junction box upper cover comprising a rectangular cover body formed by a cover plate and side plates arranged around the cover plate and perpendicular to the plate surface of the cover plate, the plate surface of one of the side plates is provided with a boss part, the surface of the boss part is provided with two wire harness clamping grooves, and the two wire harness clamping grooves are arranged in the rectangular cover body. Rubber rings are bonded to the inner walls of the two wire harness clamping grooves, a flange surrounding the side plate is arranged at the opening of the bottom of the rectangular cover body, a cavity is formed in the bottom of the flange, a sealing strip is arranged on the inner wall of the cavity, and a plurality of reinforcing ribs connected with the side plate are arranged at the top of the flange. The wiring harness box has the advantages of being high in structural strength, good ...

Method and device for preparing prochloraz by adopting micro-flow field reaction technology

The invention discloses a method and a device for preparing prochloraz by adopting a micro-flow field reaction technology, and the preparation method comprises the following steps: dissolving 2, 4, 6-trichlorophenol by using liquid caustic soda, respectively pumping the dissolved 2, 4, 6-trichlorophenol and excessive 1, 2-dichloroethane into a micro-flow field reactor for reaction to obtain 2, 4, 6-trichlorophenoxyethyl chloride, and adding 1, 2-dichloroethane into the micro-flow field reactor for reaction to obtain 2, 4, 6-trichlorophenoxyethyl chloride; the preparation method comprises the following steps: carrying out liquid separation, distillation and refining on 2, 4, 6-trichlorophenoxyethyl chloride and n-propylamine in a micro-channel reactor to obtain N-(2, 4, 6-trichlorophenoxyethyl) propylamine, carrying out reaction on the N-(2, 4, 6-trichlorophenoxyethyl) propylamine and triphosgene in the presence of triethylamine in a micro-flow field dynamic reactor to generate acyl chloride ...

STEEL RAIL FOR HIGH SPEED AND QUASI-HIGH SPEED RAILWAYS AND MANUFACTURING METHOD THEREOF

Disclosed are a steel rail for high speed and quasi-high speed railways and the manufacturing method thereof. The steel rail with better rolling contact fatigue property can be obtained by reducing the percentage of carbon and using a technique of controlled cooling after rolling. The steel rail contains the following chemical compositions by weight: 0.40-0.64% of C; 0.10-1.00% of Si; 0.30-1.50% of Mn; less than or equal to 0.025% of P, less than or equal to 0.025% of S, less than or equal to 0.005% of Al; greater than 0 and less than or equal to 0.05% of a rare earth element; at least one of V, Cr, and Ti, having a total quantity of greater than 0 and less than or equal to 0.20%; and a remaining percentage of Fe and inevitable impurities. The steel rail manufactured according to the method in the present invention maintains the strength and hardness of the steel rail currently used in high speed railways while enhancing the tensile plasticity and yield strength. In addition, the energy ...

Caprolactam and hydroxylamine sulfate co-production method

The method comprises the following steps: (1) ammoximation reaction: producing an oxime solution from ketone, ammonia and hydrogen peroxide at a certain temperature under the action of a titanium-silicon catalyst; (2) hydrolysis reaction: adding a proper amount of desalted water into the caprolactam sulfate, stirring, controlling the hydrolysis temperature, and carrying out hydrolysis reaction to obtain a hydrolysis reactant caprolactam sulfuric acid solution; (3) co-production reaction of caprolactam and hydroxylamine sulfate: adding an oxime solution in the step (3), and reacting at a certain temperature and pressure to obtain a caprolactam and hydroxylamine sulfate solution; (4) physical separation: the reactant in the step (3) is layered, the upper layer is an organic solvent containing caprolactam as a light phase, and the lower layer is a water phase containing hydroxylamine salt as a heavy phase; (5) returning the ketone-containing organic solvent to the step (1) to carry out ammoximation ...

Object-oriented serialization method and device, electronic equipment and readable storage medium

The invention provides an object-oriented serialization method and device, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining a to-be-serialized data object; the data object comprises at least one object member; determining a serialization interface corresponding to the data type of each object member in the data object in a plurality of pre-defined serialization interfaces corresponding to the data type; and calling the determined serialization interface, and carrying out serialization processing on each object member to generate a serialization file. Therefore, different serialization protocols can be compatible, and meanwhile, a new serialization protocol can be customized and expanded based on the serialization interface corresponding to each data type.

Hotspot thematic selection method and system for science and technology periodicals in energy and power field

The invention provides a hot topic selection method and system for science and technology periodicals in the field of energy and power. Keywords are extracted from themes of domestic and overseas science and technology periodicals in the field of energy and power; the keywords are merged and grouped, word frequencies are counted, and a hotspot word library is formed; according to different occurrence frequencies of the keywords in the hotspot word bank, displaying the keywords in a set number ranking according to different proportions; and selecting the hot topic according to a statistical result of the keywords. According to the invention, the front-edge hotspot information of the energy internet can be accurately grasped.

METHOD AND DEVICE FOR IDENTIFYING MULTIPLE FINGERPRINTS

A method and device for identifying multiple fingerprints. The method comprises: collecting, from a fingerprint detection area of a terminal apparatus, a fingerprint image comprising two or more fingerprints (S1); identifying the fingerprints in the fingerprint image to acquire a first fingerprint and a second fingerprint (S2); computing a distance between the first fingerprint and the second fingerprint (S3); computing an angle between the first fingerprint and the second fingerprint (S4); and when the first fingerprint and the second fingerprint match prestored fingerprint templates, and errors between the computed distance and angle and a prestored distance and angle are less than or equal to preconfigured errors, unlocking the terminal apparatus (S5).

PHOTOGRAPHING METHOD AND APPARATUS

A photographing method, comprising: after acquiring an instruction of entering a slow shutter photographing mode, entering the slow shutter photographing mode; continuously acquiring an image of each frame of a photographed object; according to a first pre-set brightness value, dividing the image of each frame of the photographed object into a light-trail region, a background light source region and a no-light source region; synthesizing according to the light-trail region of the image of each frame, and taking same as a light-trail region of a target image; taking the background light source region of one or more frames of images in the image of each frame as a background light source region of the target image, so as to avoid overexposure of the background light source region of the target image; synthesizing the no-light source region of one or more frames of images in the image of each frame into a no-light source region of the target image, so as to enhance the brightness of the no-light ...

一种高频变压器

... 本发明实施例涉及高频变压器技术领域，具体公开了一种高频变压器，所述的高频变压器包括：变压器本体，所述变压器本体封装在封装壳内；封装壳，固定安装在防护壳内；所述封装壳与所述防护壳之间形成环形空腔内；散热件，设置在所述环形空腔内，所述散热件在所述环形空腔内的位置通过驱动件进行调整；所述驱动件在使所述散热件的位置发生变化时，所述散热件的倾斜角度发生变化，进而使得摆动件上的散热件的吹风角度不断变化，提高对变压器本体的吹风散热效果；且散热件能够绕变压器本体的一圈进行运动，大大提高了对变压器本体的散热范围，有效解决高频变压器在工作中所产生的热量散发不出去，影响变压器使用寿命的问题。 ...

Protective device for fast charging seat of new energy electric vehicle

The utility model discloses a protection device for a quick charging seat of a new energy electric vehicle, which is mounted on a circular quick charging seat and comprises a circular cover body clamped on the quick charging seat, a plurality of clamping grooves circumferentially formed in the outer side surface of the quick charging seat, and convex parts circumferentially arranged on the inner wall of the cover body and clamped in the clamping grooves in a one-to-one correspondence manner, the two locking structures are arranged on the two opposite sides of the cover body in a one-to-one correspondence mode. The protection device is simple in structure, convenient to disassemble and good in protection effect, and has very high practical value and popularization value in the technical field of new energy automobiles.

Anti-scouring high-temperature and high-pressure regulating valve

The invention discloses an anti-scour high-temperature and high-pressure regulating valve which comprises a regulating valve containing mechanism which comprises a shell, a protection assembly arranged on the shell and a through-flow assembly arranged on the shell. The adjusting valve piston mechanism comprises a piston rod, an opening and closing assembly arranged on the piston rod, a sealing assembly arranged on the piston rod and an operation assembly arranged on the piston rod, a buffering assembly is arranged on an adjusting valve, so that a first-stage protection belt of the adjusting valve forms a cut-off section, the steam flowing speed can be effectively reduced, and the steam flowing speed is improved. The expansion buffer section on the incident flow face of the valve element is enlarged through the second-stage protection belt, meanwhile, the outer rafter of the third-stage protection belt is utilized, steam is effectively prevented from directly impacting the main sealing face ...

TERMINAL CONTROL METHOD, APPARATUS AND TERMINAL

A terminal control method, comprising: detecting a touch action; and, when the detected touch action meets a preset touch condition, delaying the response to the touch action. Also disclosed are a terminal control apparatus and a terminal.

PROJECTION SCREEN AND PROJECTION SYSTEM

Provided are a projection screen and a projection system. The projection screen comprises a hard screen plate (1), soft connecting cloth (2), a screen frame (3) disposed along a back side of the screen plate (1), and a plurality of elastic tension members (4), wherein a front side of the screen plate (1) is a projection light receiving surface, a back side of the screen plate (1) is bonded to the connecting cloth (2), and the connecting cloth (2) covers the back side of the screen plate (1) and stretches out of at least one side edge of the back side of the screen plate (1); each elastic tension member(4) has a first end connected to one side edge of the connecting cloth (2), and a second end connected to the screen frame (3), so that the connecting cloth (2) and the screen plate (1) can be stretched to a flat state through the tension force of the elastic tension member (4). In this way, the screen plate (1) of the projection screen can be fixed and the screen plate (1) has a better flatness ...

Power consumption prediction method and device, electronic device and electronic equipment

The invention provides an electricity consumption prediction method and device, an electronic device and electronic equipment. The method comprises the following steps: acquiring historical electricity consumption data and environment information corresponding to the historical electricity consumption data to obtain first historical electricity consumption data, and decomposing the first historical electricity consumption data by using an ensemble empirical mode decomposition method to at least obtain multi-order electricity consumption data components; generating each order of power utilization data component to an input data set, and inputting the input data set into the LSTM neural network corresponding to each order of power utilization data component to process the input data set; and obtaining each electricity consumption prediction result output by the LSTM neural network corresponding to each order of electricity consumption data component, at least adding the plurality of electricity ...

Fine description method and system for deep stratum interface and water-rich area

The invention discloses a fine description method and system for a deep stratum interface and a water-rich area, and the method comprises the following steps: eliminating the static effect of electromagnetic frequency sounding processing result data, and obtaining the electromagnetic frequency sounding processing result data after the static effect is eliminated; improving the visualization and hierarchical interpretation effect of the frequency sounding result by using the electromagnetic frequency sounding processing result data after the static effect is eliminated, and obtaining a result simulated seismic section; establishing an excitation model in the frequency domain, and obtaining an amplitude-frequency characteristic curve and a phase-frequency characteristic curve of the induced polarization effect according to the excitation model; extracting polarization parameters according to the amplitude-frequency characteristic curve and the phase-frequency characteristic curve, and performing ...

Prestressed high-strength concrete (PHC) pipe pile prefabricated filling core reinforcing structure and construction method

The PHC pipe pile prefabricated filling core reinforcing structure comprises a pipe pile, a filling core structure, a grouting material and a grouting structure, the pile foundation damaged position of the pipe pile is filled with the filling core structure, the filling core structure is a prefabricated cylindrical reinforced concrete structure, steel plate strips are obliquely inserted into the periphery of the filling core structure, a perforated steel plate is pre-embedded in the top of the filling core structure, and the grouting material is arranged in the grouting structure. A flat hole is formed in the lower portion of the core filling structure, a through hole is formed between the perforated steel plate on the top of the core filling structure and the flat hole in the bottom of the core filling structure, a circle of grout stopping ring is arranged below the flat hole around the lower portion of the core filling structure, and grouting materials are filled between the core filling ...

Power distribution network loss reduction method and system based on comprehensive evaluation of loss reduction and carbon reduction

The invention discloses a power distribution network loss reduction method and system based on loss reduction and carbon reduction comprehensive evaluation, and the method comprises the steps: obtaining the multi-source heterogeneous data of a power distribution network according to the comprehensive evaluation demands of the power distribution network, and carrying out the abnormality recognition processing, and obtaining first power distribution network data; constructing a loss reduction and carbon reduction index evaluation system, and determining loss reduction and carbon reduction evaluation indexes; performing index dimension unification processing on the first power distribution network data according to the loss reduction and carbon reduction evaluation index to obtain power distribution network index data; performing subjective and objective index comprehensive weighting on the loss reduction and carbon reduction evaluation index and the power distribution network index data to ...

Preparation method of 3, 5-disubstituted pyrazole compound

The invention discloses a preparation method of a 3, 5-disubstituted pyrazole compound, which comprises the following steps: (1) dissolving a dicarbonyl compound I in an organic solvent to obtain a solution A; dissolving a hydrazine compound II in water or an organic solvent to obtain a solution B; (2) simultaneously pumping the solution A and the solution B into a micro-reaction device for reaction; (3) carrying out post-treatment on the reaction liquid flowing out to obtain a 3, 5-disubstituted pyrazole compound III; according to the method provided by the invention, the traditional method for preparing the 3, 5-disubstituted pyrazole compound is optimized, the reaction time is shortened, and the production efficiency is improved.

OLED DEVICE

An OLED device, comprising an OLED substrate and peripheral wires provided on the OLED substrate, the peripheral wires comprising an anode wire (1) and a cathode wire (2) provided outside the anode wire (1), and an antistatic block (3) being provided between the anode wire (1) and the cathode wire (2). The anode wire (1) is arranged at the furthest inside, the antistatic block (3) is arranged in the middle, the cathode wire (2) is provided at the furthest outside. As the blank area of the peripheral wires is provided with the antistatic block (3) and the antistatic block (3) is located outside the anode wire (1), the internal electrostatic electricity, which is generated when the device is turned on and off and when the environment thereof changes, can be distributed to the antistatic block (3), so as to prevent the OLED device from being shocked. In addition, as the antistatic block (3) is provided further outward of the anode wire (1), when electrochemical corrosion occurs, the antistatic ...

Asymmetric hydrophilic and hydrophobic anion exchange membrane and preparation method thereof

The invention belongs to the technical field of fuel cell materials, and particularly relates to a preparation method of an asymmetric hydrophilic and hydrophobic anion exchange membrane. The method comprises two steps: preparation of a hydrophobic layer and preparation of a hydrophilic layer. The two sides of the prepared asymmetric hydrophilic and hydrophobic anion exchange membrane have hydrophilic and hydrophobic properties respectively. The hydrophilic part is beneficial to water retention and prevents the cathode from drying up; the hydrophobic part is beneficial to drainage and prevents the anode from being flooded. The water transmission capacity of the membrane under high current density is improved, and water management is facilitated. In addition, the hydrophilic and hydrophobic properties of the two sides of the membrane can be adjusted by adjusting the hydrophilic and hydrophobic properties of the cross-linking agent, so that the asymmetric hydrophilic and hydrophobic anion ...

CLDN5 protein, Cldn5 gene and application of modification of CLDN5 protein and Cldn5 gene in depressive disorder diagnosis and/or treatment

The invention relates to a CLDN5 protein, a Cldn5 gene and application of CLDN5 protein and Cldn5 gene modified by the CLDN5 protein and the Cldn5 gene in depressive disorder diagnosis and treatment Specifically, experiments prove that the Cldn5 gene and the H3K27me3 modification abundance of the Cldn5 gene can be used as a biomarker for depressive disorder attack; the method can be used as a target spot for screening and preparing products for preventing and/or treating depressive disorder. The Cldn5 gene and the correlation between the modification function of the Cldn5 gene and the depressive disorder provide important scientific basis and application value for prevention and treatment of the depressive disorder.

Stop type steering shaft connecting device, steering mechanism and vehicle

The embodiment of the invention provides a stop type steering shaft connecting device, a steering mechanism and a vehicle, and relates to the field of rail transit equipment. The connecting device comprises a coupler, a blocking clamp and a blocking disc, hole cavities matched with an output shaft and a steering shaft of the steering motor are formed in the two ends of the coupler respectively, a lower column body of the coupler is located in a center hole cavity of the blocking disc, the portion, located in the blocking disc, of the column body is fixedly sleeved with the blocking clamp, and the blocking clamp is of an annular columnar structure provided with hole cavities. A hole cavity is formed in the blocking clamp, the hole cavity is connected with a lower column body of the coupler in a matched and sleeved mode, one side of the blocking clamp is cut and separated and fixed through a first fastening piece, a protruding block is arranged on the other side of the blocking clamp, a second ...

Vehicle detection method, device, detector, system and model training method

The invention relates to the technical field of automatic driving, and discloses a vehicle detection method and device, a detector, a system and a model training method, and the method comprises the steps: obtaining a feature depth map corresponding to an image feature map; the image feature map corresponds to a vehicle external environment image; obtaining a road layout aerial view of the current position of the autonomous vehicle; the road layout aerial view comprises road elements; estimating the weight of the image feature belonging to the road element in the image feature map; according to the road layout aerial view, generating a correction image of the road elements for the feature depth map; correcting the feature depth map by using the corrected image and the weight to obtain a corrected feature depth map; and performing vehicle detection on the exterior of the autonomous vehicle according to the corrected feature depth map and the image feature map, and outputting a 3D vehicle ...

Function and application of Cldn5 gene in regulation and control of cognitive impairment

The invention relates to a function and application of a Cldn5 gene in regulation and control of cognitive impairment. Specifically, experiments prove that the Cldn5 gene and/or an expression product thereof are/is a risk factor of cognitive impairment; the invention provides application of increasing the expression level of the Cldn5 gene in preparation and screening of products for treating cognitive impairment.

BACK-SUSPENDING SUNKEN-TYPE ELECTRIC NURSING BED FRAME

A back-suspending sunken-type electric nursing bed frame comprising a head panel (1), a back panel (2), a hip panel (3), a thigh panel (4), and a leg panel (5). A back pushrod motor (8) and a leg pushrod motor (9) are provided below the back panel (2). The leg pushrod motor (9) drives via a scissor support component the hip panel (3) and the leg panel (5) to move forward or backward and to be held parallel to a base (7). A back panel rotating shaft (14) is provided at a position between one-quarter and one-half of the underside of the back panel (2). The back panel (2) is always fixed on the base (7) by a column (22) and by a back panel rotating shaft (14) and is then fixed by the back panel pushrod motor (8) in terms of travel, thus forming one steady triangle to position the angle of the back panel. The back-suspending sunken-type electric nursing bed frame provided in the present invention avoids a resulting substantial dislocation from a mattress when getting up with a backrest support ...

Flow data verification method for online signing of electronic contract

The invention relates to the field of electronic contract management, and provides an electronic contract online signing process data verification method comprising the following steps: collecting fingerprint data to be verified, and obtaining signing fingerprint data in an electronic contract online signing process; acquiring ridge line data points, ridge line structure points and ridge line direction fields in the fingerprint data, and extracting a fingerprint center point; acquiring a plurality of layers of ridge lines in the fingerprint data, and acquiring correlation degrees and reference degrees between different layers of ridge lines; obtaining a plurality of initial fracture ridges and an initial fracture area, obtaining a plurality of first fracture ridges according to the initial fracture area, obtaining a plurality of fracture structure points, and obtaining a plurality of related ridges of the first fracture ridges of each layer according to the correlation degree; obtaining ...

Motor shaft assembling device

The invention discloses a motor shaft assembling device which comprises a heating device provided with a third clamping part and a heating part, and the heating device is arranged to clamp a sheath through the third clamping part and heat the sheath through the heating part; the second clamping device is provided with a second clamping part, the first clamping device is provided with a first clamping part, the third clamping part is located between the second clamping part and the first clamping part, the third clamping part, the second clamping part and the first clamping part are coaxially arranged, the second clamping device is arranged to clamp a second end shaft through the second clamping part, and the first clamping device is arranged to clamp a second end shaft through the second clamping part. The first clamping device is arranged to clamp the first end shaft through the first clamping part; and the driving device is arranged to drive the second clamping device and the heating ...

Data recording and storing method for online signing process of electronic contract

The invention relates to the technical field of electric data processing, in particular to a data recording and storing method for an online signing process of an electronic contract, which comprises the following steps: collecting video data of the signing process of the electronic contract; acquiring a gradient value of each pixel point in the video frame grey-scale map, acquiring a first abnormal degree of each pixel point in combination with a grey-scale value difference between the pixel point and an adjacent point so as to acquire a second importance degree of each neuron, and acquiring a third importance degree of each neuron in combination with a connection relationship of the neuron; the weight and deletion possibility of each neuron connection are obtained, the deletion possibility of each neuron is obtained by combining the third importance degree of each neuron, and then the improved self-encoding neural network is obtained; and safely storing the video data in the signing process ...

PM-OLED DISPLAY AUTOMATICALLY ADJUSTING BRIGHTNESS AND MANUFACTURING METHOD THEREFOR

A PM-OLED display that automatically adjusts brightness and a manufacturing method therefor; the PM-OLED display that automatically adjusts brightness comprises a device substrate (1) formed with a light-emitting device structure (2) and a back cover aligned with and attached to the device substrate (1) by means of a sealing frame (3); further comprised is a photosensitive device structure (4) which is located in a region between the sealing frame (3) and an effective display region (AA) and which is connected in series on a line of a Vcc lead or Vpp lead between a drive IC (5) and an FPC (6). The described display integrates a photosensitive resistance structure in a blank region of a non-display region within the display, thus the basic structure of the display does not need to be re-modified and designed, the photosensitive resistance structure does not need to be embedded into a TFT pixel structure like in an AM-OLED display, and an external photosensitive sensor and external circuit ...

Bismuth oxide nano composite material as well as preparation method and application thereof

The invention discloses a bismuth oxide nano composite material as well as a preparation method and application thereof. Compared with other bismuth-based materials, the bismuth oxide composite material prepared by the preparation method disclosed by the invention is of a nanotube structure, has the average diameter of 10-20nm, and has a relatively large electrochemical activity specific surface area and relatively strong CO2 adsorption capacity, so that the bismuth oxide composite material shows excellent electrocatalytic CO2 reduction activity and ideal formate selectivity. The preparation method provided by the invention is green and simple, and can realize rapid mass production of the catalyst in a short time, thereby promoting the development of a process of reducing CO2 into formate through electro-catalysis.

Spraying track simulation optimization method and device based on virtual reality

The invention provides a virtual reality-based spraying track simulation optimization method and device, and relates to the technical field of artificial intelligence, the device comprises a main body, the top surface of the main body is provided with a lifting motor, the output end of the lifting motor is provided with a lifting screw rod, the main body is internally provided with a mounting block, the mounting block is movably connected with the main body, and the mounting block is in threaded connection with the lifting screw rod; a scanner is arranged on the surface of the mounting block, a data processor and a display screen are arranged on the surface of the main body, the scanner is driven by a lifting motor and a lifting screw rod to move up and down to scan a part needing to be sprayed, then three-dimensional modeling is conducted on the scanned part through the data processor, and then virtual spraying is conducted on a three-dimensional model on the display screen; through virtual ...

Heterogeneous ammoximation reaction separation device and method

The invention relates to the technical field of chemical engineering, and discloses a heterogeneous ammoximation reaction separation device and method.The heterogeneous ammoximation reaction separation device comprises a reaction kettle, a separation tower and a conveying pipeline, and a first premixer is arranged on the conveying pipeline and used for mixing an extraction agent into reaction liquid; a first filter, a rotational flow device and a second filter which are sequentially arranged from top to bottom are arranged in the separation tower, and the rotational flow device is connected to the conveying pipeline and can separate a light phase and a heavy phase in a mixed solution formed by the reaction solution and the extraction agent; a first liquid outlet is formed in the separating tower above the first filter and is used for discharging ammoximation reactants of which the light phase is filtered by the first filter; and a second liquid outlet is formed in the separating tower below ...

METHOD FOR DETERMINING LIGHT COMPENSATION UTILIZATION OF PHALARIS ARUNDINACEA IN PHRAGMITES COMMUNIS AND PHALARIS ARUNDINACEA COMMUNITY

A method for determining light compensation utilization of Phalaris arundinacea in a Phragmites communis and Phalaris arundinacea community, comprising the following steps: selecting Phalaris arundinacea under Phragmites communis canopies in an active growth stage in the Phragmites communis and Phalaris arundinacea community; performing light response curve fitting on Phalaris arundinacea leaf blades by using an artificial light source, and separately testing the illumination intensity of a surface layer of the Phalaris arundinacea and the illumination intensity of the Phalaris arundinacea in an environment where there is no shelter around; and then, calculating a net photosynthetic rate of the Phalaris arundinacea under the two illumination intensities and the ratio of the two illumination intensities according to a light response curve of the Phalaris arundinacea, so as to estimate the light compensation utilization rate of the Phalaris arundinacea under the Phragmites communis canopies ...

Art design typeface adjusting device

... 本实用新型公开了一种艺术设计字体调整装置，涉及艺术设计设备领域，该艺术设计字体调整装置的书写管的内部设有一根归位弹簧，归位弹簧的两端设有两个尺寸相同的圆柱形握柄。使用时可在书写管上书写艺术字，或将艺术字纸片粘贴在书写管上，用手握住两端的握柄，通过弯曲归位弹簧来带动书写管弯曲，从而达到改变艺术字字体的目的，接触弯曲力后，归位弹簧便会恢复形状，操作简单方便，可随时随地实际操作调试，灵活性强。 ...

Underground coal mine intelligent ventilation monitoring system

The invention discloses an underground coal mine intelligent ventilation monitoring system, and relates to the technical field of underground ventilation, the underground coal mine intelligent ventilation monitoring system comprises a mounting base, the top of the mounting base is provided with a clamping groove, a clamping block is clamped in the clamping groove, the top of the clamping block is fixedly provided with a supporting plate, one side of the supporting plate is provided with a second sliding groove, and the second sliding groove is fixedly connected with the clamping block. The device has the beneficial effects that the reciprocating lead screw rotates to drive the first moving plate on the outer side to move, and when the first moving plate moves, the position of a piston at one end of a connecting rod can be adjusted, so that the position of the piston at the other end of the connecting rod can be adjusted, and the piston at the other end of the connecting rod can be adjusted ...

Terminal network layer and application layer trusted access method and system

The invention discloses a terminal network layer and application layer trusted access method and system, and the method comprises the steps: generating a symmetric key according to first authentication information, second authentication information and third authentication information sent by a terminal; generating first end information by using the symmetric key, so that the terminal generates a session key according to the first authentication information, the second authentication information and the third authentication information; decrypting the first end information by using the session key and sending second end information which is generated based on the session key after the decryption result is confirmed to be correct; and the second end information is decrypted by using the symmetric key, after the decrypted data is verified to be correct, the terminal is accessed to the master station as a trusted terminal, and the symmetric key is used for decrypting the data transmitted by ...

BINDER, COMPOSITION, ELECTRODE MATERIAL, AND PREPARATION METHOD THEREOF

Provided in the present application are a binder for use in an electrochemical battery, being a copolymer, the copolymer having a first repeating unit and a second repeating unit, the first repeating unit having a first side group, the first side group having a first terminal group, and the first terminal group being a polar functional group; the second repeating unit has a second side group, the second side group having a second terminal group, and the second terminal group being an epoxy group. Also provided in the present application are a composition comprising the binder and active material particles, an electrochemical battery electrode material, and a preparation method therefor. In the electrode material obtained using the binder of the present application, the active material cannot easily detach, and the structural stability of the electrode is high.

Bridge fully-prefabricated pile foundation bearing platform connecting structure and construction method

The invention relates to a bridge full-precast pile foundation bearing platform connecting structure and a construction method.The bridge full-precast pile foundation bearing platform connecting structure comprises a plurality of precast piles, precast pile caps, precast bearing platforms, steel pipe piles and precast bridge piers, pile cap grooves are formed in the bottoms of the precast pile caps, and the precast piles are sleeved with the precast pile caps; the prefabricated bearing platform is placed on the top face of the prefabricated pile cap, soil is backfilled around the prefabricated bearing platform, four bearing platform holes are formed in the four corners of the prefabricated bearing platform, the four steel pipe piles are inserted into the bearing platform holes respectively, the tops of the steel pipe piles are flush with the upper surface of the prefabricated bearing platform, and bearing platform steel bars extend upwards from the center of the upper surface of the prefabricated ...

FOLDABLE BED FRAME AND ALL-JOINT INTEGRATED BED MATTRESS

A foldable bed frame and an all-joint integrated bed mattress. The all-joint integrated bed mattress comprises a foldable bed frame (21), soft decorative outer package (22) being provided outside the bed frame (21), a plurality of independent barrel springs (23) being provided within the bed frame (21), the plurality of independent barrel springs (23) being arranged in a matrix, and a covering cloth (24) and an upper sealing cushion (25) being laid outside the bed frame (21) and the independent barrel springs (23). The foldable bed frame (21) comprises two transverse baffles and two longitudinal baffles, the transverse baffles and the longitudinal baffles being connected by means of bendable joints (9), each transverse baffle comprising PVC straight sections (5) connected by means of a folding joint (10), and each longitudinal baffle comprising PVC straight sections (2, 3, 4) connected by means of bi-directional bendable joints (6, 7, 8). The foldable bed frame can be folded and bent at ...

Double-channel switching conveying valve group

The invention provides a double-channel switching conveying valve group which comprises a valve body, the liquid inlet end of the valve body is connected with a liquid inlet pipe, the liquid outlet end of the valve body is connected with a liquid outlet pipe, a flow control mechanism is arranged in the valve body, and a driving mechanism connected with the execution end of the flow control mechanism is arranged at the top end of the valve body; the flow control mechanism comprises a three-way pipe connected with the liquid outlet end of the liquid inlet pipe, a liquid conveying rubber pipe connected with the liquid outlet end of the three-way pipe, and a clamping component arranged outside the liquid conveying rubber pipe in a sleeving mode. The driving mechanism comprises a pushing part connected with the driving end of the clamping part and an electromagnetic valve connected with the driving end of the pushing part. According to the invention, the material in the three-way pipe can be ...

CONTROL METHOD AND DEVICE

A control method used in a terminal device. The method comprises: detecting a contact point on a terminal device when the terminal device has detected a preset trigger condition; and adjusting, according to an active position of the contact point, a rotation angle of a display interface of the terminal device. The technical solution can flexibly adjust a display direction of the display interface of the terminal device, thus greatly improving user experience.

ROD POSITION-LIMITING AND GAP-ELIMINATING DEVICE FOR FRICTION WELDING MACHINE

A rod position-limiting and gap eliminating device for a friction welding machine. The device comprises a housing (1), an upper rod (2), a wedge block (3), and a drive device (4). The upper rod is horizontally arranged in the housing. The wedge block is vertically arranged in the housing. A first inclined surface (11) of the upper rod coincides with a second inclined surface (21) of the wedge block. The drive device is connected to the wedge block to convert an upward movement of the wedge block into a horizontal movement of the upper rod. The rod position-limiting and gap eliminating device for a friction welding machine enables an automatic position reset operation after use by providing a sliding groove or a spring, and eliminates, by pushing the upper rod with the wedge block in an axial direction, a gap in the axial direction for a held welding workpiece. The gap can be effectively eliminated as a result of self-locking of the inclined surfaces. The present invention has a simple and ...

Electrode lead, electrical stimulation system having same, and method for manufacturing electrode lead

The present disclosure relates to an electrode lead for an electrical stimulation system adapted to be at least partially implanted into a human body to apply electrical stimulation. The electrode lead comprises a slender main body piece, a plurality of conductive channels extending in the length direction of the main body piece are arranged in the main body piece, and each conductive channel is filled with conductive fluid; the plurality of output electrode contacts are attached to the outer surface of the main body part, each conductive channel extends to a corresponding output electrode contact, and the conductive fluid in each conductive channel is electrically connected with the corresponding output electrode contact; and an electric pulse stimulation signal generated by a control device of the electric stimulation system is transmitted to the corresponding output electrode contact. The conductive channel is formed on the substrate and is filled with the conductive fluid, so that the ...

Power battery device, power battery system and electric vehicle

The invention relates to a power battery device, a power battery system and an electric vehicle, and relates to the technical field of electric vehicles. The power battery device comprises: a battery compartment, which is installed on a vehicle body of an electric vehicle; the power battery is separably mounted in the battery compartment; the cooling pipeline comprises a liquid inlet pipe and a liquid outlet pipe which are connected to the power battery, and each of the liquid inlet pipe and the liquid outlet pipe comprises a first pipeline, a second pipeline and an electric control connector; one of the first pipeline and the second pipeline is connected to the battery bin, the other one is connected to the power battery, and the electric control connector is installed at the end, in butt joint with the second pipeline, of the first pipeline. Wherein the electric control connector has a locking state and an unlocking state; in a locking state, the electric control joint is clamped with ...

Cutting tooth with adjustable cutting depth and intelligent drill bit

The invention relates to a cutting depth-adjustable cutting tooth and an intelligent drill bit, and the cutting depth-adjustable cutting tooth comprises a mounting block which is used for being connected with the drill bit, and a containing cavity is formed in one side surface of the mounting block; the adjustable cutting teeth are arranged in the accommodating cavity; the driving mechanism is arranged in the containing cavity and used for adjusting the length, extending out of the containing cavity, of the adjustable cutting teeth. The mounting block is arranged, the containing cavity is formed in the mounting block, the adjustable cutting teeth are mounted in the containing cavity, the driving mechanism is arranged in the containing cavity, and the length, extending out of the containing cavity, of the adjustable cutting teeth is adjusted through the driving mechanism, so that the purpose of adjusting the cutting depth of the adjustable cutting teeth is achieved; therefore, the cutting ...

VIDEO DELIVERY METHOD AND APPARATUS, AND ELECTRONIC DEVICE

Disclosed are a video delivery method and apparatus, and an electronic device. The video delivery method comprises: acquiring the popularity of each video program, wherein the popularity is a degree of preference of a user group for the video program within a statistical time period; and according to the popularity of each video program, determining delivery of video content of the video program by means of a carousel channel or in an on-demand manner.

LOGISTICS SORTING SYSTEM AND LOGISTICS SORTING METHOD

Disclosed are a logistics sorting system and a logistics sorting method. The logistics sorting system (100) comprises a conveying module (110), an identification module (120), a sorting module (130), cargo storage modules (140) and a central controller (150), wherein the conveying module (110) is arranged in front of the sorting module (130), the identification module (120) is arranged above the conveying module (110) or above the sorting module (130), several cargo storage modules (140) are successively arranged on two sides of the sorting module (130) respectively, and the central controller (150) is electrically connected to the conveying module (110), the identification module (120), the sorting module (130) and the several cargo storage modules (140), respectively. By effectively improving the automation degree of the logistics sorting system, the technical problem of a slow sorting rate of existing logistics sorting systems is solved, and by means of a rational layout of the various ...

High-frequency transformer

An embodiment of the invention relates to the technical field of high-frequency transformers, and particularly discloses a high-frequency transformer. The high-frequency transformer comprises: a transformer body, which is packaged in a packaging shell; the packaging shell, which is fixedly mounted in a protective shell; an annular cavity, which is formed between the packaging shell and the protective shell; and a heat dissipation piece, which is arranged in the annular cavity, wherein the position of the heat dissipation piece in the annular cavity is adjusted through a driving piece. When the position of the heat dissipation piece is changed by the driving piece, the inclination angle of the heat dissipation piece is changed, so the blowing angle of the heat dissipation piece on a swinging piece is continuously changed, and blowing heat dissipation effect on the transformer body is improved; and the heat dissipation piece can move around the transformer body by a circle, so the heat dissipation ...

LASER LIGHT SOURCE AND LASER PROJECTING DEVICE

A laser light source (200) comprising a laser component (210), where the laser component (210) comprises a laser (211) and a circuit board (212), the laser (211) comprises a substrate (2113) and a light-emitting chip (2112) provided on the substrate, multiple pins (2111) extending outwards from the substrate (2113) are provided on a side of the substrate (2113), the circuit board (212) is provided on the side from which the pins (2111) extend, and the circuit board (212) is electrically connected to the pins (2111). The laser light source is simple to assemble and disassemble. Also provided is a laser projecting device.

Format light reading recommendation method and system based on data analysis

The invention relates to the technical field of data processing, in particular to a format light reading recommendation method and system based on data analysis, and the method comprises the steps: obtaining a label set of reading data, recording the label set as a user label set, and obtaining three similarity influence factors according to the reading number, reading duration and reading progress of a user; calculating an improved Jaccard similarity according to the label set of the pre-selected book and the similarity influence factor; and recommending the pre-selected books with the maximum preset number of improved Jaccard similarities to the user. The improved Jaccard similarity is obtained according to the similarity influence factor, and the accuracy of the format light reading recommendation method and system is improved by using the Jaccard similarity.

Concrete freezing and thawing cycle test piece position marking and taking-out device

The invention relates to a concrete freeze-thaw cycle test piece position marking and taking-out device which comprises a concrete test piece contour shell, and a marking position is arranged on the concrete test piece contour shell; the concrete test piece contour shell comprises a top cross-shaped shell and a bottom Chinese character'tian '-shaped shell, two disconnected folded linear contour strips are connected to the front side between the top cross-shaped shell and the bottom Chinese character'tian'-shaped shell, and two folded linear contour strips are connected to the rear side between the top cross-shaped shell and the bottom Chinese character'tian '-shaped shell; the marking position comprises a measuring position hollow ring, and an orange marking block and a blue marking block are arranged at the two ends of the measuring position hollow ring respectively. According to the invention, the measurement position can be rapidly and accurately determined after mortar on the freeze-thaw ...

Method for preparing pyrazole medical intermediates by adopting micro-flow field reaction technology

The invention discloses a method for preparing a pyrazole medical intermediate by adopting a micro-flow field reaction technology, which comprises the following steps: dissolving a carbonyl compound and DMF-DMA (Dimethyl Formamide-Dimethyl Formamide) in an organic solvent to obtain a solution A, and pumping the obtained solution A into a micro-channel modular reaction device for reaction, the obtained reaction solution B and the hydrazine solution C are pumped into the micro-channel modular reaction device again for reaction to prepare the pyrazole compound, and the micro-channel modular reaction device comprises a micro-structure mixer, a micro-structure reactor and a product collector which are sequentially connected through pipelines. And the temperature in the micro-structure reactor is controlled through the micro heat exchanger. According to the method provided by the invention, two steps are connected in series, the method is simple and efficient, the traditional method for preparing ...

Transceiving common-aperture phased-array antenna arraying method for inhibiting generation of grating lobes

The invention discloses a transceiving common-aperture phased-array antenna arraying method for inhibiting grating lobe generation, which belongs to the technical field of antenna arrays, and is characterized by comprising the following steps of: a, forming a standardized sub-array by M * N antenna units in a transceiving unit common-aperture arraying manner, and splicing W standardized sub-arrays into a hemispherical array; b, an active module is connected, and active channel sparse processing is carried out; c, randomly arraying the active modules twice; and d, when the hemispherical array is formed, processing the standardized sub-array spacing from low to high according to the hemispherical latitude, and completing the second-time sparse processing. Through two times of randomization processing, the number of active channels can be greatly reduced, the unit spacing can be properly increased compared with that of a planar array, the generation of grating lobes can be effectively inhibited ...

Laser projection equipment

The invention provides laser projection equipment which comprises a red laser assembly, a green laser assembly and a blue laser assembly which respectively emit red laser, green laser and blue laser. The polarization directions of the red laser, the blue laser and the green laser differ by 90 degrees; the laser assembly of any color comprises a laser and a PCB arranged on the peripheral side of the laser, and the laser comprises a plurality of light-emitting chips packaged on a substrate. The laser assembly of any color is installed at the window of the side face of the light source shell. The light source inner cavity is provided with a plurality of light combining lenses for combining the three-color laser beams; the red laser assembly is arranged close to the light source light outlet; a half-wave plate is arranged before the red laser is combined with the blue laser and the green laser and is used for changing the polarization direction of the red laser, so that the polarization directions ...

METHOD FOR IMPROVING HARDNESS AND TOUGHNESS OF SINGLE CRYSTAL CVD DIAMOND

The present invention relates to the field of diamond materials, and provides a method for improving the hardness and toughness of a single crystal CVD diamond. The method comprises: intermittently introducing nitrogen, or a mixed gas of nitrogen and oxygen, or a boron-containing gas during growing a single crystal diamond by means of microwave plasma chemical vapor deposition (MPCVD), or hot filament chemical vapor deposition (HFCVD), or direct current arc plasma jet chemical vapor deposition (DC Arc Plasma Jet CVD). By growing a diamond using different doped layers alternately, enhancement and toughening effects of a nano-multilayer interface structure are achieved. Compared with a single crystal CVD diamond grown without doping, a single crystal CVD diamond grown by the method above has the Vickers hardness improved by 5-25% and the fracture toughness improved by 4-56%. The hardness and toughness of the multilayer single crystal CVD diamond grown by the present invention are significantly ...

Method for recovering lithium salt in lithium salt-containing electrolyte

The invention provides a method for recovering lithium salt in lithium salt-containing electrolyte, which comprises the following steps of: S1, adding deionized water into a dimethyl carbonate solution of the lithium salt-containing electrolyte for extraction, and taking a water phase for later use; and S2, determining and analyzing the lithium salt in the water phase, and if the lithium salt is a stable lithium salt, separating the water phase and then purifying to obtain the stable lithium salt which is subsequently used in the lithium ion battery. If the lithium salt is a water-sensitive lithium salt, separating a water phase, adding lithium hydroxide, heating at 160 DEG C for 24 hours, taking out, standing, cooling, separating out a precipitate, washing with deionized water for three times, and drying to obtain the precipitate, namely lithium fluoride. According to the method, the lithium salt is recycled from the waste lithium-containing electrolyte, the recycling process not only ...

METHOD AND DEVICE FOR ADJUSTING DISPLAY ORIENTATION OF IMAGE

A method and device for adjusting a display orientation of an image, wherein the method comprises: receiving a pressure signal from a pressing of a terminal (S102); adjusting a display orientation of an image in a display interface of the terminal according to the received pressure signal (S104). Through the method and device, display orientation of an image on a display interface of a terminal can be flexibly adjusted according to the received terminal pressure signal, and the technical issue in the prior art in which it is inconvenient for users to view terminal images due to a fixed image display direction, or a single adjustment mode adopted by a terminal, can be resolved. The present invention enables flexible adjustment of the display orientation of an image in a terminal display, improving user experience.

FRICTION WELDING FLASH REMOVAL APPARATUS AND FRICTION WELDING MACHINE

A friction welding flash removal apparatus, comprising a hollow cylinder (1), a punching plate (2), a removal apparatus (3), and a connecting screw (4), the hollow cylinder (1) being connected to the punching plate (2) by means of the connecting screw (4), the middle of the punching plate (2) being provided with a round hole, and the removal apparatus (3) being detachably arranged in the round hole. The removal apparatus (3) comprises a punching base (31), a pressing plate (32), and a punching knife (33). Also relating to a friction welding machine comprising said friction welding flash removal apparatus. The present flash removal apparatus has a simple structure, wide scope of application, low costs, high flash removal efficiency, and short flash removal time, and saves a large amount of human and material resources.

Method and system for sounding geothermal energy through electromagnetic frequency in electromagnetic interference area

The invention discloses a method and system for sounding geothermal energy through electromagnetic frequency in an electromagnetic interference area, and the method comprises the steps: collecting the data of the electromagnetic interference area, and predicting the key features of a target geologic body, further determining the position and the burying mode of the field source AB electrode, the transceiving distance between the detection area MN electrode and the field source AB electrode, and the direction and the distance of the detection area MN electrode; carrying out a field test according to the position and the burying mode of the field source AB electrode, the transceiving distance and the direction and the distance of the detection area MN electrode, and determining a parameter value of each key parameter according to a field test result; performing formal field production according to the parameter values of the key parameters, and collecting complete data of the electromagnetic ...

Bone cement-based drug sustained-release carrier and preparation method thereof

The invention relates to the technical field of magnesium phosphate cement, in particular to a bone cement-based drug sustained-release carrier and a preparation method thereof.The sustained-release carrier is high in matrix strength and reasonable and controllable in aperture, the drug sustained-release period can be directly adjusted by adjusting the aperture, the sustained-release carrier can be reused, the preparation process is simple, cost is low, and the bone cement-based drug sustained-release carrier is suitable for industrial production. And the method can be used in batch medication occasions.

INTERLEUKIN 21 PROTEIN (IL21) MUTANT AND USE THEREOF

Provided in the present invention are an interleukin 21 protein (IL21) mutant and a use thereof. In the mutant, both ILE at position 16 and SER at position 70 of wild-type IL21 are mutated into CYS, and disulfide bonds are formed between the two mutated CYSs. Also provided is a fusion protein containing the IL21 protein mutant. The IL21 protein mutant or fusion protein can be used for regulating or activating immunity, resisting tumors and promoting the differentiation and proliferation of B cells, T cells or NK cells.

Mine geological rock powder sampling device

The invention discloses a mine geological rock powder sampling device which comprises a handle rod and two fixed supporting rods, wherein the two fixed supporting rods which are symmetrically arranged are fixedly mounted at the upper end of the outer side surface of the handle rod; the machine shell is fixedly mounted at the top end of the fixed supporting rod; the sampling mechanism is arranged in the machine shell; and the material receiving mechanism is connected with the sampling mechanism. The mine geology rock powder sampling device is more convenient to operate, rock powder can be quickly and effectively sampled, underground rock powder can be stably and effectively sampled, the operation difficulty can be reduced, the working efficiency can be improved, meanwhile, the sampled rock powder can be screened, large-particle impurities in the rock powder can be screened out, and the working efficiency can be improved. The guarantee is provided for effective test and analysis of the rock ...

LASER LIGHT SOURCE AND LASER PROJECTION APPARATUS

Disclosed are a laser light source (200) and a laser projection apparatus. The laser light source (200) comprises a laser (91) and a laser heat dissipation assembly for dissipating heat from the laser (91), wherein the side of the laser (91) facing the laser heat dissipation assembly is provided with a heat sink (92); the laser heat dissipation assembly comprises a heat conduction layer and a fin module (16); the heat sink (92) is in contact with the heat conduction layer; the heat conduction layer comprises at least two heat conduction blocks (11, 13); a plurality of heat tubes (12, 14) are provided between adjacent heat conduction blocks (11, 13); each of the heat tubes (12, 14) comprises a heat end (124), a cold end (125), and a bent portion (123) that connects the heat end (124) to the cold end (125); the heat ends (124) are respectively connected to the adjacent heat conduction blocks (11, 13); the fin module (16) comprises a plurality of heat dissipation fins parallel to each other ...

STEEL RAIL FOR HIGH SPEED AND QUASI-HIGH SPEED RAILWAYS AND MANUFACTURING METHOD THEREOF

Disclosed are a steel rail for high speed and quasi-high speed railways and the manufacturing method thereof. The steel rail with better rolling contact fatigue property can be obtained by reducing the percentage of carbon and using a technique of controlled cooling after rolling. The steel rail contains the following chemical compositions by weight: 0.40-0.64% of C; 0.10-1.00% of Si; 0.30-1.50% of Mn; less than or equal to 0.025% of P, less than or equal to 0.025% of S, less than or equal to 0.005% of Al; greater than 0 and less than or equal to 0.05% of a rare earth element; at least one of V, Cr, and Ti, having a total quantity of greater than 0 and less than or equal to 0.20%; and a remaining percentage of Fe and inevitable impurities. The steel rail manufactured according to the method in the present invention maintains the strength and hardness of the steel rail currently used in high speed railways while enhancing the tensile plasticity and yield strength. In addition, the energy ...

Novel warming coat

... 本发明涉及种新型保暖外套，特别是外套层设有铝膜纤维的外套，属于合成纤维技术。该外套包括基层、铝膜层和面层，基层为纳米抗菌布料，面层为针织面料或机织面料，铝膜层与基层和面层之间通过贴合，涂布或印刷的方式相结合。 ...

Reactive voltage cloud edge cooperative control method based on Km-FZM model

The invention relates to a reactive voltage cloud edge cooperative control method based on a Km-FZM model, and the method comprises the steps: sensing end layer information through an edge server, and carrying out the judgment of a bus and a branch; constructing a cooperative control model, namely a Km-FZM model, in which a K-means model and an improved fifteen-zone graph control strategy are fused; and the edge server regulates and controls the data in the defined range at the edge layer according to a fifteen-zone graph control strategy, and if the reactive power is not balanced, the feature data outside the defined range is uploaded to the cloud for overall clustering optimization, and then optimization is performed at the edge layer. According to the method, the Km-FZM control model is combined with cloud edge cooperation, the defect that the control sequence is disordered and complicated is effectively overcome, voltage reactive power control and reactive power optimization are completed ...

CAPROLACTAM PREPARATION METHOD

A caprolactam preparation method provided in the present invention comprises the following steps: (1) in the presence of an oxime catalyst and absence of any organic solvent, conducting an ammoximation on cyclohexanone, ammonia, and hydrogen peroxide in an aqueous solvent and at a temperature between 50 and 200 °C to obtain a solvent containing a cyclohexanone oxime; (2) extracting the solvent containing the cyclohexanone oxime with an inert organic solvent to obtain an extract phase containing the cyclohexanone oxime and a raffinate phase containing the oxime catalyst and water; (3) conducting a Beckmann rearrangement reaction on the extract phase and an oleum, then conducting a neutralization reaction between a product of the Beckmann rearrangement reaction and the ammonia. The method preparing caprolactam increases a yield of the caprolactam and eliminates refining process of the cyclohexanone oxime, thus greatly shortening a manufacturing procedure and lead time, while recycling the ...

Systems and methods for providing high quality audio communications in low bit rate network connections

The invention provides a novel system and method for providing high-quality audio under low-bit-rate network connection in real-time communication. The system includes a real-time communication software application equipped with an improved encoder and an improved decoder. An encoder divides audio data of two frequency ranges corresponding to an ultra-wideband mode and a wideband mode into low-frequency sub-band and high-frequency sub-band audio data. And extracting audio features from the low-frequency sub-band audio data and the high-frequency sub-band audio data. And the audio features are quantized and packaged. The decoder reconstructs the audio data according to the compressed audio features in the ultra-wideband mode and the wideband mode for playback on the receiving device.

Motor shaft assembling device and control method thereof

The invention discloses a motor shaft assembling device and a control method thereof. The motor shaft assembling device comprises a first functional mechanism and a first temperature control mechanism, the first functional mechanism is arranged to clamp a sheath, and the first temperature control mechanism is arranged to adjust the temperature of the sheath; the second functional mechanism is arranged to clamp the first end shaft assembly; the third function mechanism is arranged to clamp the second end shaft, the first function mechanism, the second function mechanism and the third function mechanism are further arranged to drive a sheath, and the first end shaft assembly and the second end shaft are assembled together; and the control system is electrically connected with the first functional mechanism, the first temperature control mechanism, the second functional mechanism and the third functional mechanism. An automatic control mode is adopted to ensure that the actual expansion and ...

Method for repairing positive electrode material of waste lithium ion battery

The invention provides a method for repairing a positive electrode material of a waste lithium ion battery, which comprises the following steps of: S1, completely discharging a lithium ion battery of which the battery capacity is attenuated, and disassembling to obtain a positive electrode, a low-potential lithiation material, a diaphragm and a shell; s2, preparing an electrolyte; s3, cleaning the positive electrode by adopting a dimethyl carbonate solvent, cutting the positive electrode into a positive electrode piece, cleaning the diaphragm, drying and cutting the diaphragm into a diaphragm piece, putting the low-potential lithiation material, an electrolyte, the positive electrode piece and the diaphragm piece into a glove box, and performing external short-circuit repair to supplement lithium to the positive electrode piece; and S4, after the reaction is finished, taking out the positive pole piece, cleaning the positive pole piece with a solvent, and drying the positive pole piece ...

Crowd perception navigation method and system based on deep reinforcement learning

The invention relates to the technical field of navigation, and provides a crowd perception navigation method and system based on deep reinforcement learning, and the method comprises the steps: obtaining a robot state, an observable state of a pedestrian and sensing data of a static obstacle at a current moment; inputting the robot state, the observable state of the pedestrian and the sensing data of the static obstacle at the current moment into a local planning algorithm to obtain the robot state, the observable state of the pedestrian and the sensing data of the static obstacle at the next moment; and inputting the obtained state of the robot at the next moment, the observable state of the pedestrian and the sensing data of the static obstacle into a value network model to obtain a state value, and selecting the action at the current moment in combination with rewards received at the current moment under different actions. The problem of robot navigation which is safe and meets social ...

Remote visual OPGW optical cable splice closure

The invention relates to a remote visual OPGW optical cable splice closure, and relates to the technical field of power cable operation maintenance, the remote visual OPGW optical cable splice closure comprises a box body, the box body is internally provided with a camera module, a lighting module, a network transmission module, a positioning module and a power supply module; the camera module is connected to the cloud server through the network transmission module and is used for shooting image information in the box body; the illumination module is used for providing illumination for the space in the box body; the positioning module is connected to the cloud server through the network transmission module and is used for determining the coordinate position of the box body and synchronously displaying coordinate position information and image information shot by the camera module; and the power supply module is used for providing electric energy for the camera module and the lighting module ...

Imidazole functionalized composite anion exchange membrane as well as preparation method and application thereof

The invention discloses an imidazole functionalized composite anion exchange membrane as well as a preparation method and application thereof, and belongs to the field of fuel cells and electrolytic tanks. On the basis of surface treatment of porous base membranes with different thicknesses, monomer in-situ polymerization and crosslinking are realized in porous channels of the porous base membranes through a solvent-free in-situ thermal polymerization method. The porous base membranes with different thicknesses can be used for preparing composite membranes with different mechanical strengths, so that the requirement of an electrochemical energy device on the mechanical strength of the anion exchange membrane is met; in-situ thermal polymerization enables the composite membrane to be more compact, and the air tightness of the composite membrane is ensured. The chemical stability of the anion exchange membrane is improved by introducing a 1, 2, 4, 5-tetramethylimidazole functional group with ...

Damper device

The invention relates to a damping device. The damping device comprises a first rotating part and a second rotating part which can relatively rotate around a rotating axis, an annular cavity defined between the first rotating part and the second rotating part, and at least one friction gasket, the first rotating part comprises at least one contact region about the axis of rotation and axially abuts the second rotating part in the at least one contact region via a respective friction gasket. Wherein the friction washer comprises a water-absorbing expansion material. The damping device disclosed by the invention has a good sealing effect.

Power consumption abnormity detection method and device, electronic device and electronic equipment

The invention provides a power consumption abnormity detection method and device, an electronic device and electronic equipment. The method comprises the following steps: acquiring electricity consumption data and environment information corresponding to the electricity consumption data, and generating an electricity consumption data sequence according to the electricity consumption data and the environment information corresponding to the electricity consumption data; inputting the power consumption data sequence into an LSTM-SVR neural network model to perform regression analysis on the power consumption data sequence by using the LSTM-SVR neural network model, and obtaining a result output by the LSTM-SVR neural network model to obtain predicted power consumption; and acquiring the real electricity consumption at the current moment, calculating a two-norm between the predicted electricity consumption and the real electricity consumption, and marking the real electricity consumption as ...

Optical projection system and electronic device

The embodiment of the invention discloses an optical projection system and electronic equipment. The optical projection system comprises a light source module, a brightening device, a first light guide device and an imaging module, the light source module is used for generating projection light; the brightening device is located on a light path transmission path of the light source module and can convert the projection light into target light for projection imaging; the first light guide device is located on a transmission path of the target light; the imaging module is located on a coupled-out light transmission path of the first light guide device, light coupled out through the first light guide device directly enters the imaging module, and the light forms light with image information after being reflected for multiple times in the imaging module and then is emitted. According to the scheme provided by the embodiment of the invention, the small-size and high-brightness design of the ...

Self-adaptive anti-falling nozzle and drill bit

The invention relates to a self-adaptive anti-falling nozzle and a drill bit. A runner and a nozzle which are communicated in sequence are arranged in the nozzle body, the diameter of the runner is larger than that of the nozzle, and a first mounting hole communicated with the runner is formed in the outer wall of the nozzle body; the first limiting piece is movably arranged in the first mounting hole and can move to protrude out of the outer wall of the nozzle body; the driving part is arranged in the flow channel, can move in the axial direction of the flow channel and can be driven by fluid in the flow channel to the end, close to the spraying opening, of the flow channel, so that the first limiting part moves to protrude out of the outer wall of the nozzle body. Through the arrangement of the first mounting hole, the first limiting piece and the driving piece, in the drilling process, slurry generates pressure on the driving piece to enable the driving piece to move to the end, close ...

Novel prefabricated-cast-in-place combined reinforced concrete hollow pier and implementation method

The invention relates to a novel prefabricated-cast-in-place combined reinforced concrete hollow bridge pier and an implementation method, the novel prefabricated-cast-in-place combined reinforced concrete hollow bridge pier comprises a bridge pier segment piece, the top of the bridge pier segment piece is connected with a cap beam, the bottom of the bridge pier segment piece is connected with a bridge pier inner groove segment piece, the bottom of the bridge pier inner groove segment piece is connected with a bridge pier splicing piece, and the bottom of the bridge pier splicing piece is connected with a cast-in-place bearing platform; a plurality of vertical corrugated pipe hole channels are formed in the peripheries of the bridge pier segment pieces, the bridge pier inner groove segment pieces and the bridge pier splicing pieces, prestressed steel bars penetrate through the inner sides of the vertical corrugated pipe hole channels, the top ends of the prestressed steel bars are fixed ...

Radar support for tunnel cavity detection

The invention discloses a radar support for tunnel cavity detection, and relates to the technical field of tunnel detection, the radar support comprises a mounting chassis and an outer end box, the top of the outer end box is provided with an opening, and the outer end box is fixedly connected with the mounting chassis; the lifting block is in sliding fit with the outer end box in the vertical direction, and a lifting assembly is arranged between the bottom of the lifting block and the outer end box; the extension column is arranged at the top of the lifting block, and a limiting mounting groove in sliding fit with the extension column is formed in the position, close to the top, of the lifting block; according to the invention, the extension column can lift and slide in the limiting mounting groove to ensure that the subsequent radar can be tightly attached to the tunnel wall, so that the detection operation can be smoothly carried out; the sleeve can be lifted on the basis of the extension ...

Device and method for measuring pipe diameter of current pipeline

The invention belongs to the technical field of measurement and surveying and mapping, and particularly provides a current pipeline diameter measuring device and method.The current pipeline diameter measuring device comprises an inner jacking assembly, a driving and positioning assembly, a measuring assembly, a scale indicating assembly, a floating ball and the like, and the inner jacking assembly is of a deformable parallelogram structure; the driving and positioning assembly is used for driving the movable rod to move and performing position positioning and adopts a structural form of a rocker and an arc-shaped guide rail; the measuring assembly adopts a structural form of a lifting rod and is used for lifting operation and visual reading; the scale indication assembly adopts a structural form of a first spring and a sleeve, so that scale values are convenient to read; a positioning mechanism is further arranged between the floating ball and the first connecting rod and used for positioning ...

Automobile workpiece spraying system based on fusion augmented reality technology

The invention provides an automobile workpiece spraying system based on a fusion augmented reality technology, which comprises a system structure consisting of a robot device, a control station, a coating chamber, a workpiece treatment device and a sewage treatment device, and adopts the combination of two spraying modes of electrostatic spraying and air spraying to spray the surface of an automobile workpiece. According to the spraying method, the corresponding spraying modes are selected for the workpiece according to different types of sprayed primer, colored paint and varnish, compared with a single spraying mode after the whole workpiece is sprayed, the color and luster degree of a paint film on the surface of the workpiece is higher, the spraying coverage degree is wide, spraying is uniform, loss is small, and therefore the spraying efficiency and the spraying quality of the surface of the workpiece are greatly improved; the control station is adopted to control feeding of the whole ...

Method for detecting radix bupleuri volatile oil

The invention relates to a method for detecting radix bupleuri volatile oil, which comprises the following steps of: extracting the radix bupleuri volatile oil by adopting a steam distillation method, and detecting by adopting a gas chromatographic method. The chemical components of the radix bupleuri volatile oil are qualitatively determined by a gas chromatographic method, and 18 compounds are identified.

Foundation reinforcement building construction method for highway bridge pile foundation

The invention discloses a highway bridge pile foundation reinforcement building construction method, and belongs to the technical field of highway bridge pile foundation building, and the method comprises the following steps: determining the geological condition of a construction position: carrying out preliminary detection in a designated area by using different detection machines, and determining the geological condition information in the construction area; s2, preparation before construction is conducted, specifically, according to different geological conditions in a construction area, tamping treatment is conducted on a construction site, and the approximate position of a pile foundation is obtained through measurement; building an enclosure; foundation pit construction is conducted, specifically, preliminary excavation is conducted on a pre-determined pile foundation, and different excavation modes are adopted according to different geologies; and construction of the supporting device ...

Bone tissue resection device

The invention provides a bone tissue resection device which comprises a rod piece and a sleeve, the rod piece is provided with a groove and limits an axis, and the sleeve is arranged on the rod piece in a sleeving mode and can slide relative to the rod piece along the axis. As the cannula slides from a first position exposing at least part of the groove to a second position accommodating the groove, the distal end portion of the cannula can cooperate with the distal wall of the groove to cut bone tissue of the patient. Compared with a traditional rongeur, the bone tissue resection device has the advantages of being relatively simple in structure, convenient to operate and the like. Besides, according to the bone tissue resection device provided by the invention, after the cutting action is completed, the groove can be accommodated in the sleeve, so that the cut bone tissue can be completely limited in a closed space formed by the groove and the sleeve, and the risk that the bone tissue ...

Waterborne epoxy resin-geopolymer-based repair material and preparation method thereof

The invention relates to a water-borne epoxy resin-geopolymer-based repair material and a preparation method thereof, the water-borne epoxy resin-geopolymer-based repair material comprises the following raw materials by mass: 90-105 parts of fly ash, 30-45 parts of mineral powder, 14-15 parts of metakaolin, 370-428 parts of sand, 89-91 parts of an alkali activator, 10-21 parts of mixing water, 15-32 parts of modified water-borne epoxy resin, and 15-32 parts of a water-borne epoxy hardener. The alkali activator is composed of a strong alkali solution and a silicate solution, and the mass ratio of the silicate solution to the strong alkali solution is 1: 0.9-1.1. According to the invention, the working performance, mechanical property and durability of the repairing material can be improved, and the repairing material has firm bonding capacity with a repaired part, is a low-carbon, green and efficient building repairing material, and has certain engineering application value.

Geophysical engineering exploration and detection method, exploration device and application

The invention belongs to the technical field of coal seam exploration information identification, and discloses an exploration detection method of geophysical engineering, an exploration device and application. The method comprises the following steps: constructing a goaf water accumulation abnormal position and range model according to the water-containing characteristic and the fracture structure of a water-containing layer in a goaf area and the water-containing guide characteristic of a collapse column; performing ponding information exploration on the constructed goaf ponding abnormal position and range model by using a transient electromagnetic exploration instrument; and the explored ponding information is sent to the intelligent terminal for visual display. According to the method, the problem that accurate data cannot be provided for finding out the water-containing characteristics and the fracture structure of the water-containing layer in the coal seam mining area and the water-containing ...

Combined dissimilar material turbine stator blade assembly

The invention belongs to the technical field of aero-engines, and particularly relates to a combined turbine stator blade assembly made of dissimilar materials, which adopts one end of a ceramic-based blade bearing high-temperature fuel gas scouring, and adopts a metal blade in a high-flow-speed-resistant flow guide area which is complex in structure and high in processing difficulty. The high-pressure turbine guide blade has the excellent temperature resistance of a ceramic matrix composite blade and the reliable mechanical property and excellent pneumatic performance of a high-temperature alloy blade, the temperature bearing capacity of the front edge of the high-pressure turbine guide blade is improved, the problem of overtemperature of the front edge of a new-generation advanced engine turbine guide blade is solved, and the purposes of light weight, low cost and the like of the turbine blade are achieved. And the service life of the blade is prolonged, and the overall performance of ...

Nano Sn-C composite material for negative electrode of sodium-ion battery and preparation method of nano Sn-C composite material

The invention discloses a nano Sn-C composite material for a negative electrode of a sodium-ion battery and a preparation method of the nano Sn-C composite material, and belongs to the field of electrochemical energy storage materials. According to the method, the preparation of nanoscale Sn particles, the direct reduction of the graphene oxide and the uniform dispersion of the Sn nanoparticles on the surface of the graphene are simultaneously realized by utilizing a one-step chemical co-reduction method. As the Sn particles are small and are uniformly dispersed on the surface of the graphene carrier, the Sn-C composite material shows very high electrochemical sodium storage capacity and good cycling stability. The method has the advantages of cheap and easily available raw materials, simple process, no need of high-temperature treatment process, low energy consumption and no pollution.