Geotechnical engineering deviational survey pipe

... 本实用新型公开了种岩土工程测斜管，包括管钳、连接管、推杆、滤网、管道连接件、水位传感器、导向装置、锲形硬质合金钢、红外探测仪、U形管和进水口；所述U形管通过管道连接件与连接管连接，所述U形管上设置有进水口，所述滤网通过密封垫固定在U形管的进水口处，所述U形管的底部通过固定装置安装有导向装置，所述导向装置中安装有红外探测仪，所述管钳夹在U形管上，且管钳固定在地面上，所述U形管通过连接装置安装有推杆。本实用新型在U形管中设有水位传感器，可以准确的监测到U形管中的水位是否达到进水口，使其能够快速准确的进行数据测试。 ...

Two-gear hub integrated type electric driving wheel set and vehicle comprising electric wheel set

The invention discloses a two-gear hub integrated type electric driving wheel set and a vehicle comprising the electric driving wheel set. The electric driving wheel set comprises a front end shell, a middle section shell I, a middle section shell II, a rear end shell, a high-speed driving motor, an ordinary gear train speed reducing mechanism, a first planetary gear train speed reducing mechanism, a second planetary gear train speed reducing mechanism, a gear shifting mechanism, a gear shifting driving mechanism, a transition flange plate, a suspension upper swing arm support, a suspension lower swing arm support, a braking system and a rim. The whole set of electric driving system is arranged in the hub, the space utilization rate of the vehicle is greatly improved, the space arrangement of the vehicle is more flexible, the structure is more compact, and the transmission efficiency is high. Besides, according to the vehicle provided by the invention, different transmission ratios can ...

Photo-thermal coupling isothermal compressed air multi-mode power generation system

The invention discloses a photo-thermal coupling isothermal compressed air multi-mode power generation system which comprises an isothermal compression assembly, a hydraulic constant-pressure air storage assembly, a photo-thermal heat storage assembly, a heat exchange assembly and a regenerative air turbine assembly. According to the photo-thermal coupling isothermal compressed air multi-mode power generation system, the processes of energy storage, energy release and photo-thermal power generation can be achieved through combined operation, and the photo-thermal coupling isothermal compressed air multi-mode power generation system has multiple operation modes, is a set of completely-clean photo-thermal power generation energy storage system, has the advantages of being efficient and flexible and is suitable for price policies of different regions, different seasons and different power grids.

Obstacle detection method, device, equipment, medium and product

The invention discloses an obstacle detection method, device and equipment, a medium and a product. The method comprises the following steps: acquiring target point cloud data of a target scene; determining obstacle point cloud data in the target point cloud data; and determining a target obstacle in the target scene according to the obstacle point cloud data. According to the embodiment of the invention, the obstacle detection efficiency and precision are improved, and the influence of environmental factors on obstacle detection is reduced.

Guiding assembly and device and system with guiding assembly

The guiding assembly is used for guiding a needle body and is characterized in that the guiding assembly comprises a body, a first cavity used for allowing the needle body to penetrate through is formed in the body, a needle outlet face is arranged on the side wall of the body, a needle outlet is formed in the position, on the needle outlet face, of the far end of the first cavity, and the needle outlet is communicated with the first cavity. The guide assembly further comprises an anti-skid array, the anti-skid array comprises a plurality of anti-skid structures, and the anti-skid structures protrude out of the needle outlet face. By arranging the anti-skid array, the static friction coefficient between the guiding assembly and the tissue wall can be increased, more importantly, the impact force of blood flow is reduced through the multiple anti-skid structures arranged in an array mode, and therefore the attaching stability of the guiding assembly on the tissue wall is improved; therefore ...

Shared remote storage method, device and system, electronic equipment and storage medium

The invention provides a shared remote storage method, device and system, electronic equipment and a computer readable storage medium, and relates to the technical field of remote storage. The method comprises the steps of creating a corresponding to-be-stored cache file in a local cache according to a write-in request, writing to-be-written data into a storage block in the corresponding to-be-stored cache file, generating a file path according to the write-in request, creating a corresponding shared file in a remote file according to the file path, and storing the shared file in the local cache. Writing the written storage block into the shared file, determining a filename identifier and a storage block identifier according to the query request, when corresponding data does not exist in the local cache, acquiring a corresponding data from a remote file, caching the data to the local cache, and updating a file information list after executing corresponding operation; according to the embodiment ...

Mobile device and method for detecting leakproofness of valve diaphragm

The invention discloses a mobile device and method for detecting the leakproofness of a valve diaphragm, and the device comprises a movable pedestal, a sliding adjustment device, a buffer cylinder, and a liquid inlet funnel, and the sliding adjustment device, the buffer cylinder, and the liquid inlet funnel are fixedly disposed at the top of the movable pedestal. The interiors of the sliding adjusting device, the buffering cylinder and the liquid inlet funnel are sequentially communicated through a pipeline, the pipeline is further provided with an air inlet and a plurality of valves, and the valves comprise a one-way valve, a first valve, a second valve, a third valve, a fourth valve and a valve to be tested. According to the invention, the leakproofness detection of the pipeline valve in gas and liquid environments can be realized, the real working pressure of the pipeline valve in a use scene is restored by adjusting the opening and closing of the valve, the leakproofness detection is ...

Water chilling unit

The invention provides a water chilling unit. The water chilling unit comprises a first heat exchanger; a second heat exchanger; and the filling equipment is provided with a filling gas inlet and a filling gas outlet. According to the water chilling unit provided by the invention, primary precooling is carried out on the gas in the first heat exchanger, secondary precooling is carried out on the gas in the second heat exchanger, and part of the gas subjected to secondary precooling flows back to the second heat exchanger for heat exchange, so that the cooling effect on the gas during secondary precooling is improved; therefore, the cooling effect of using refrigerants and a compressor in the prior art is achieved, efficient and environment-friendly refrigeration and heat dissipation without mechanical refrigeration and refrigerants are achieved, use of the compressor and the refrigerants is avoided, and energy consumption of the water chilling unit is effectively reduced.

LED PLANT GROWTH LAMP LIGHT SPECTRUM

An LED plant growth lamp and a light spectrum and application thereof, wherein the light spectrum contains: 500-599 nm light waves and 700-780 nm light waves, and the ratio of the number of photons in the 500-599 nm range and the number of photons in the 700-780 nm range is 0.9-1.6:1. The use of the present light spectrum may promote the indoor cultivation and growth of plants, and help to increase pharmaceutical composition yield per unit time and per unit area during industrial production.

INTEGRAL BRIDGE DECK CRANE FOR CENTRAL CABLE PLANE STEEL BOX GIRDER

An integral bridge deck crane for a central cable plane steel box girder, comprising a slide rail (1), a support truss (2) and a lifting device; the lower end of the support truss (2) is provided with a sliding apparatus slidably connected to the slide rail (1); and a pushing oil cylinder (3) is provided between the sliding apparatus and the slide rail (1) for pushing the support truss (2) to move in a bridge longitudinal direction. Said integral bridge deck crane further comprises a distribution apparatus which is located between the slide rail (1) and the support truss (2) and is rotatable around a vertical axis; and the distribution apparatus supports, when in a bridge transverse direction after rotation, the lower end of the support truss (2) and forms a bearing girder structure with the width in the bridge transverse direction being greater than the width of the support truss (2), and hangs, when in the bridge longitudinal direction after rotation, on the lower end of the support truss ...

RADIO-FREQUENCY SWITCH AND CONTROL METHOD THEREFOR

The present invention provides a radio-frequency switch. The radio-frequency switch comprises: at least two signal transmission modules, each signal transmission module comprising connected in sequence, a common port, a first series branch module, a second series branch module and a branch port; a parallel branch module; and a ground port. The parallel branch module is disposed between the ground port and a first terminal, and the first terminal is disposed between the first series branch module and the second series branch module. The common port is further connected with common ports of the other signal transmission modules in the radio-frequency switch, and the branch port is further connected with branch ports of the other signal transmission modules in the radio-frequency switch. State switching of the radio-frequency switch is realized by changing states of the first series branch module, the second series branch module and the parallel branch module. The present invention further ...

MANUFACTURING METHOD FOR BLAZED CONCAVE GRATING

A manufacturing method for a blazed concave grating, comprising: reproducing a blazed concave grating by means of reproduction technology; after the reproduction is completed, conducting heat preservation and cooling; then, separating two blocks of gratings (G1, G2) in different pulling manners respectively; and finally, splicing the reproduced and separated concave grating blanks, so as to obtain the required blazed concave grating. This manufacturing method can solve the problem of a large error in the existing reproduction method for a blazed concave grating.

METHOD AND DEVICE FOR UPDATING PWS KEY

Disclosed in the present invention are a method and device for updating Public Warning System (PWS) key。 According to the said method，when a preset condition is satisfied, UE receives updated PWS key from a network side device via a downlink NAS message; UE updates the current PWS key with the received PWS key. According to the technical solution provided by the present invention, the PWS security protection is enhanced by updating the PWS key in real time.

METHOD FOR PREPARING BOSUTINIB AND CRYSTAL THEREOF

Disclosed is a method for preparing Bosutinib and a crystal thereof. The method comprises: using 4-chloro-6-methoxy-7-hydroxy-3-quinoline carbonitrile and 2,4-dichloro-5-methoxyaniline as starting materials and using an aprotic polar solvent as a reaction solvent to prepare Bosutinib; and dissolving Bosutinib in the aprotic polar solvent, adding water, cooling and crystallizing to obtain a Bosutinib-hydrate type I crystal. The method reduces impurity generation, significantly improves yield and reduces costs; less energy is consumed in the crystallization method, it is unnecessary to maintain high-temperature crystal transformation for a long time, the product has high purity, and the method is suitable for industrial production.

液体探测器（JWYT-1）

出诊手提包

带有物联网安全访问控制综合管理系统图形用户界面的显示屏幕面板

腰包（医药）

气象站

摄像头模组

背包（家庭应急）

显示屏幕面板的热水器操控图形用户界面

洗牙器(手持奥斯拓AST-NP16)

直流充电桩（三相AC380V）

电池充电配电盒

显示屏幕面板的热水器操控图形用户界面

电动车后转向灯（Q3-3）

Engineering implementation method for scale factor system-level unified temperature compensation model of fiber-optic gyroscope and accelerometer

The invention discloses an engineering implementation method for a scale factor system-level unified temperature compensation model of a fiber-optic gyroscope and an accelerometer, and relates to the technical field of instrument algorithms. According to the method, a plurality of intervals are set at the environment temperature of-45 DEG C to 70 DEG C, heat preservation is carried out for 3 h every 10 DEG C, then power-on data are used for collecting original data of the accelerometer and the fiber-optic gyroscope, and automatic parameter calculation and piecewise linear fitting are carried out. According to the invention, scale factors of different temperature points are all compensated into scale factors on a certain temperature point, in an environment temperature interval from-45 DEG C to 70 DEG C, the difference between the maximum scale factor and the minimum scale factor of each temperature point of the fiber-optic gyroscope and the accelerometer is reduced from 800ppm to less than ...

Emergency stop protection circuit of medical equipment and medical equipment

The invention discloses a sudden stop protection circuit of medical equipment and the medical equipment. The sudden stop protection circuit comprises at least two stages of protection modules which are in cascade connection. Each stage of protection module comprises a cascade unit and a power-off protection unit; the cascade unit comprises a transmission branch and a return branch; the power-off protection unit is connected between an electric control part in the medical equipment and a power supply of the electric control part, and a first control end of the power-off protection unit is connected to a return branch of the cascade unit; wherein the transmission branch of the first cascade unit is used for accessing a first power supply signal, the transmission branches of the cascade units are sequentially connected to form a transmission link of the first power supply signal, and the return branches of the cascade units are sequentially connected to form a return link of the first power ...

Edge computing device based on Web service, data interaction system and method and medium

The invention discloses edge computing equipment based on Web service, a data interaction system and method and a computer readable storage medium. The edge computing device based on Web service comprises a Web server and a data center end, and the Web server is used for being in communication connection with the front end of the master station and the data center end so as to obtain a control instruction output by the front end and output the control instruction to the data center end; the Web server side is further used for acquiring page data output by the data center side and outputting the page data to the front end; the data center end is used for obtaining the control instruction output by the Web server end, calling page data according to the control instruction and outputting the page data to the Web server end. The edge computing equipment provided by the invention can call the page data from the data center end through the Web server and output the page data to the front end, ...

Durability test system for low-pressure large-flow overflow valve

The invention discloses a low-pressure large-flow overflow valve durability test system, belongs to the field of overflow valve durability test, and aims to solve the problems that an existing durability test system is relatively single in oil supply power selection, cannot ensure the stability of oil supply power, and does not have simulated parameters (oil temperature and flow) of a working environment, so that the test accuracy is greatly influenced. The invention provides a durability test system for a low-pressure large-flow overflow valve. The test system comprises an oil tank, a temperature control loop, a system power loop and a test loop, the temperature control loop is arranged on the oil tank, the system power loop is connected to the oil inlet end of the testing loop in series, the oil inlet end of the system power loop is communicated with the oil tank, the oil outlet end of the system power loop is communicated with the oil inlet end of the testing loop, and the oil outlet ...

Intelligent diagnosis method and device for state of power transmission and distribution line

The invention relates to the technical field of line diagnosis, in particular to a power transmission and distribution line state intelligent diagnosis method and device.The device comprises an intelligent diagnosis device and a diagnosis assembly, the diagnosis assembly comprises a telescopic rod, a mounting cylinder, a first threaded rod, a rotating shaft and a rotating handle, and the intelligent diagnosis device is fixedly connected with the telescopic rod and located at one end of the telescopic rod; the telescopic rod is arranged in the mounting cylinder and provided with a first threaded hole, the first threaded rod is matched with the first threaded hole, the rotating shaft is rotationally connected with the mounting cylinder, one end of the first threaded rod is fixedly connected with one end of the rotating shaft, the rotating handle is fixedly connected with the other end of the rotating shaft, and the rotating handle is rotated to drive the rotating shaft to rotate, so that ...

Weather-resistant high-strength aerated concrete and preparation method thereof

The invention provides weather-resistant high-strength aerated concrete and a preparation method thereof, and the weather-resistant high-strength aerated concrete is prepared from the following components in parts by weight: 12.5 to 20 parts of cement, 10 to 16 parts of lime, 33 to 60 parts of quartz sand tailings, 5 to 27 parts of waste aerated concrete, 4 parts of desulfurized gypsum, 0.004 part of sodium dodecyl benzene sulfonate, 0.008 part of aluminum powder paste, 0.1 to 0.2 part of polyacrylonitrile fiber, 0.5 to 1 part of bentonite and 0.5 to 1 part of silica fume. 4-5 parts of limestone powder and 2-3 parts of wollastonite; wherein the mass ratio of the cement to the lime is (5-4): 4. Through optimal design of the formula, a large amount of solid waste such as the quartz sand tailings, the desulfurized gypsum and the waste aerated concrete is consumed, a low-temperature ultra-short-time efficient energy-saving low-carbon curing process is adopted, the curing system is that the ...

Neural network training operation system and method based on conductivity adjustable device

The invention discloses a neural network training operation system and method based on a conductance-adjustable device. The system comprises a first voltage conversion module used for converting a forward output signal of a previous network layer into an input voltage signal; the adjustable conductance module is used for processing an input voltage signal, outputting a first current signal, processing a reverse input voltage signal and outputting a second current signal; the first comparison module is used for comparing the first current signals; the sampling and holding module is used for sampling the comparison result and outputting a forward output signal and a derivative signal of the current network layer; the product module is used for multiplying the reverse error signal of the next network layer by the derivative signal; the second voltage conversion module converts the multiplication result into a reverse input voltage signal; and the second comparison module compares the second ...

LIGHT SOURCE FOR INDOOR PLANT CULTIVATION

The present invention relates to the technical field of plant cultivation by means of artificial light, and particularly provides a light environment method for full-artificial light cultivation of a plant to provide a full-artificial light source for plant growth. The light source comprises a light wave having the waveband of 620-760 nm, and the number of photons of the light wave of 620-760 nm accounts for 64-76% of the total number of photons of the light source. Compared with traditional light sources, such as existing fluorescent lamps and high-pressure sodium lamps, the proportion of the light sources and a light source combination mode used by the present invention can greatly improve the yield of the plant. Compared with a traditional LED lamp light source proportion scheme, the light source proportion scheme of the present invention has the advantages that the wave band of a selected light source is more accurate, is little affected by other plant growth parameters, and is more ...

METHOD, SYSTEM AND ENHANCED SGSN FOR CREATING KEY BETWEEN GERAN AND ENHANCED UTRAN

The present invention provides a method, system and an enhanced SGSN for creating a key between a GERAN and an enhanced UTRAN. The method comprises the following steps: when a user equipment moves from the GERAN to the enhanced UTRAN, the enhanced SGSN servicing the enhanced UTRAN obtains the security-related parameters from the GERAN and generates an air interface key for the enhanced UTRAN according to the security-related parameters; and/or when the user equipment moves from the enhanced UTRAN to the GERAN, the enhanced SGSN servicing the enhanced UTRAN generates the air interface key for the GERAN and sends the air interface key to the GERAN.

USB flash disk with adsorb function

... 本实用新型涉及种具有吸附功能的U盘，包括吸盘、内凹式T形插件、外凸式T形插件、U盘，其特征在于，吸盘的内部中空且呈碗状的内凹形，吸盘由塑料制成，在吸盘的顶部有个较短的连接柱，连接柱能够由塑料、橡胶高分子材料制成，也能够由金属、不锈钢、玻璃钢、玻璃材料制成，连接柱的另端与内凹式T形插件的上端相连，内凹式T形插件能与外凸式T形插件从侧面嵌套在起，外凸式T形插件固定在U盘上，当外凸式T形插件从内凹式T形插件中滑出时，U盘能够独立的使用，当外凸式T形插件和内凹式T形插件嵌套在起时，U盘能够通过吸盘吸附在光滑的平面上，防止遗失。 ...

Concrete crack control construction method based on capillary pore stress elastic modulus

The invention discloses a concrete crack control construction method based on capillary pore stress elastic modulus, and relates to the technical field of building structures. Comprising the following steps: A1, preparation work before concrete member pouring; a2, concrete pouring, wherein the concrete prepared after the raw materials are proportioned and optimized is transported to a construction site to be poured through a segmented and layered continuous method. And A3, after concrete pouring is completed, the concrete is cured. According to the method, the concrete constraint tensile stress is accurately calculated based on the capillary pore stress elastic modulus, then the cracking performance of the concrete is predicted, the concrete constraint tensile stress is reduced by adjusting the concrete mixing proportion and the reinforcement ratio, cracking of the concrete is prevented, and adverse effects on the structure are avoided.

Fiber-reinforced thermoplastic starch plate and preparation method thereof

The invention relates to a fiber reinforced thermoplastic starch material, which comprises starch, a plasticizer, natural cellulose fibers and graphene modified carbon fibers, and is prepared by the following steps: mixing the natural cellulose fibers with the plasticizer by using a high-speed mixer, adding high-direct-connection starch and the graphene modified carbon fibers, and mixing; the graphene modified carbon fiber is added, so that the mechanical property of the plate is enhanced, the flame retardant property of the plate is improved, the graphene transparent layer is evaporated on the surface of the plate, the hydrophobic capacity is enhanced, the moisture resistance is improved, and meanwhile the flame retardant property is further enhanced. The invention has the advantages of scientific and reasonable components, reproducibility, biodegradability, no pollution, environmental protection, wide application and the like.

Three-dimensional scene reconstruction method

The invention relates to the technical field of automatic driving, in particular to a three-dimensional scene reconstruction method, which comprises the following steps of: providing continuous image data, and extracting static background data and dynamic foreground data; constructing a background model according to the background data, and constructing a foreground model according to the foreground data; and combining the background model and the foreground model to obtain a three-dimensional scene model. According to the method, three-dimensional scenes for automatic driving training can be effectively enriched, the degree of dependence on actual road test is reduced, an automatic driving training model is effectively supplemented, and the method has positive significance in improving the training amount of automatic driving, optimizing the stability and safety of automatic driving and promoting development and iteration of the automatic driving technology.

Air inlet humidifying system for fuel cell

The invention provides an air inlet humidifying system for a fuel cell, belongs to the technical field of fuel cells, and solves the problems that the humidifying effect is poor and a flow channel is easy to block in the prior art. The system comprises an ultrasonic transduction piece, an ejector, an intercooler, an expansion machine, a water distribution piece, a water storage tank and a humidification controller. A wet air inlet and outlet and a liquid inlet are integrated on the water storage tank. The wet air inlet is connected with an air tail gas outlet of the electric pile. And the wet air outlet is connected with a drainage inlet of the ejector. And the liquid inlet is connected with an air tail gas outlet of the electric pile through a water outlet of the water distribution piece and a turbine cavity of the expansion machine in sequence. And a pressing wheel cavity of the expansion machine is connected with an air inlet of the electric pile after passing through the ejector and ...

High-reflection glass suitable for laser and preparation method of high-reflection glass

The invention discloses high-reflection glass suitable for a laser and a preparation method of the high-reflection glass, and belongs to the technical field of optical glass. According to the technical scheme, the preparation method comprises the following steps: (1) selecting a film system material: selecting a high-refractive-index material NbR2ROR5R and a low-refractive-index material SiOR2R as a film layer material of the high-reflection glass according to the refractive index, the light transmission range and the laser damage threshold value of the material; (2) designing a film system: designing a reflection increasing film with the wave band of 900-1100nm by taking cover plate glass as a substrate and adopting TFCalc as design software; and (3) film plating is conducted according to the film system designed in the step (2), the first layer is tightly attached to the front face of the substrate, the second layer is plated on the first layer, and film layers with the thicknesses in ...

Tool-free wiring terminal block

A tool-free wiring terminal block disclosed by the present invention comprises a plastic shell, a current-conducting plate and an elastic sheet, an accommodating cavity is formed in the plastic shell, a wiring hole communicated with the accommodating cavity is formed in the side wall of the plastic shell, one end of the current-conducting plate is fixedly inserted into the accommodating cavity of the plastic shell, and the other end of the current-conducting plate is fixedly inserted into the elastic sheet. The elastic piece is rotatably installed in the containing cavity of the insulating shell, an elastic cantilever structure capable of clamping a wire inserted through the wiring hole together with the conductive plate is formed on the elastic piece, a handle is rotatably installed on the insulating shell, one end of the handle extends into the containing cavity through an opening portion, communicated with the containing cavity, of the insulating shell, and the other end of the handle ...

Turnout snow melting system and control method thereof

The invention discloses a turnout snow melting system and a control method thereof. The method comprises the steps that environment information is obtained through a sensor, whether a heating action is executed or not is determined according to the environment information, and the environment information comprises temperature and humidity information and snowfall information; if yes, a preset control signal is output to an inverter source, so that the inverter source generates high-frequency alternating current on an induction heating coil, and the induction heating coil heats the steel rail; determining the size relation between the distance between the induction heating coil and the steel rail and a preset distance according to the collected output current of the inverter source, and controlling an output signal to the inverter source according to the size relation so as to control the heating state; the heating state comprises heating continuing and heating stopping. A control signal ...

Clothes drying equipment and control method thereof

The invention relates to the technical field of clothes drying, in particular to clothes drying equipment and a control method thereof, and aims to solve the problems that existing clothes drying equipment is poor in drying effect and high in energy consumption. Therefore, the clothes drying equipment comprises a drying cylinder, a flock collecting device and a drying channel, the flock collecting device is used for collecting flock generated in the clothes drying process, and the drying channel communicates with the drying cylinder; according to the clothes drying equipment, the drying air speed is selectively adjusted according to the obtained moisture content of the soft flocks in the soft flocks collecting device in the drying process and the weight of the soft flocks collected this time, and the drying temperature is selectively adjusted according to the obtained moisture content of the soft flocks and the exhaust humidity of the drying channel. According to the clothes drying equipment ...

Method for realizing quinoline hydrogenation by taking nitrogen-boron double-doped carbon nanomaterial as catalyst

The invention discloses a method for realizing quinoline hydrogenation by using a nitrogen-boron double-doped carbon nanomaterial as a catalyst, which comprises the following steps: dispersing boric acid and chitin in an ethanol aqueous solution, and carrying out reflux, rotary evaporation and vacuum drying to obtain precursor powder; placing the precursor powder in a tubular furnace, and heating and carbonizing in a nitrogen or argon atmosphere to obtain black powder, namely the nitrogen-boron double-doped carbon nanomaterial; the invention discloses a preparation method of 1, 2, 3, 4-tetrahydroquinoline, which comprises the following steps: uniformly dispersing a nitrogen-boron double-doped carbon nanomaterial in a solvent, adding quinoline and a reducing agent, filling nitrogen, and reacting at 180-220 DEG C while stirring to obtain 1, 2, 3, 4-tetrahydroquinoline, thereby avoiding metal pollution and simplifying product purification. The catalytic reaction efficiency is high, the conversion ...

TWO-WAY CONTROLLABLE RELEASE VENA CAVA FILTER

Disclosed is a two-way controllable release vena cava filter, comprising a filtering part (1400) and a supporting part (1100, 1200), wherein the filtering part (1400) is of a grid structure formed by the cross-linking of a plurality of supporting rods; the supporting part (1100, 1200) comprises a first supporting part (1200) and a second supporting part (1100) having opposite openings and being arranged on two sides of the filtering part (1400); the first supporting part (1200) is formed by gradually extending from the centre to the outside in a forward direction, and by gradually overturning and curling in a reverse direction; and the second supporting part (1100) is formed by gradually extending from the centre to the outside in the forward direction. According to the present invention, implantation and retrieval can be conducted by means of the femoral vein and also the jugular vein; the thrombus filtering effect of same is good; and the vena cava filter can be retrieved after being ...

ARRAY SUBSTRATE AND MANUFACTURING METHOD THEREFOR, DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE

An array substrate (10), comprising a substrate base and multiple film layers provided on the substrate base. The substrate base is provided with a mounting groove (12) for providing a hardware structure with a mounting space. The multiple film layers are provided with a packaging preformed groove (14) which at least passes through some of the film layers. The mounting groove (12) passes through the array substrate (10) in the thickness direction of the array substrate (10), and the packaging preformed groove (14) is provided surrounding the mounting groove (12).

SELECTION METHOD FOR AIR INTERFACE SECURITY ALGORITHM IN WIRELESS COMMUNICATION SYSTEM AND MME

Disclosed are a selection method for an air interface security algorithm in a wireless communication system and an MME (mobility management entity). The method comprises: according to the security capability of a user equipment which currently requests access and whether the user equipment is in a roaming state, a mobility management entity determining the security capability of the user equipment and issuing same to a serving base station of the user equipment. The mobility management entity comprises: a processing module which is configured to determine the security capability of the user equipment according to the security capability of the user equipment which currently requests access and whether the user equipment is in a roaming state; and a sending module which is configured to issue to a serving base station of the user equipment the security capability of the user equipment determined by the processing module. After the embodiments of the present invention are adopted, when a ...

Pipeline butt weld phased array detects to sweep looks into ware

... 本实用新型提供了种管道对接焊缝相控阵检测扫查器，其包括：横梁，能吸附于管道周面上的两磁性轮组组件，探头加载组件和编码器加载组件；两所述磁性轮组组件、所述探头加载组件和所述编码器加载组件沿所述横梁的轴向能调节位置的安装于所述横梁的同侧。通过设置沿横梁的轴向能调节位置的安装于横梁的两磁性轮组组件、探头加载组件和编码器加载组件，可实现本实用新型的模块化拼接，方便携带及拆装，有效实现了对管道不同位置对接焊缝的检测。 ...

Method for preparing formate/formic acid by catalyzing CO2 hydrogenation reduction through MOF packaged metal Ir complex

The invention provides a method for preparing formate/formic acid through CO2 hydrogenation reduction catalyzed by an MOF packaged metal Ir complex, and belongs to the technical field of energy and heterogeneous catalysis. The invention synthesizes a series of metal organic framework encapsulated iridium catalysts, and the iridium catalysts are applied to catalysis of CO2 hydrogenation for preparation of formate/formic acid. The preparation method of the series of metal organic framework encapsulated iridium catalysts is simple and low in cost; according to the series of catalysts, MOF and a metal iridium complex are combined, the high activity and high selectivity of a homogeneous catalyst can be shown, a regenerated catalyst can be obtained through simple centrifugation, washing, grinding and drying, and effective recycling is achieved. The catalyst can efficiently catalyze CO2 hydrogenation reduction to prepare formate at lower reaction temperature and pressure under the condition of ...

Underwater pipeline monitoring method based on deepwater submersible

The invention relates to the field of underwater pipeline monitoring, in particular to an underwater pipeline monitoring method based on a deepwater submersible. Comprising the following steps that a submersible vehicle carries an underwater pipeline monitoring device to reach the position above a pipeline; the monitoring node release mechanism acts to push out the monitoring nodes in sequence; the monitoring nodes are in butt joint with the pipeline, and the monitoring nodes are driven to be clamped and fixed through a one-way clamping mechanism. A butt joint interface of the monitoring cable is placed in the cable fixing part; the monitoring cable is locked and fixed in the cable fixing part; and the electric appliance is driven to be butted with the plug, so that communication and energy supply between the monitoring node and the monitoring cable are realized. The real-time monitoring requirement of the subsea pipeline is met, and installation, updating, maintenance and recovery of the ...

Scanning driving circuit and display panel

The embodiment of the invention discloses a scanning driving circuit and a display panel, the scanning driving circuit comprises n cascaded scanning driving units, a first signal output subunit in the Jth scanning driving unit comprises a first node, a second node, a first pull-down control module and a first output module, the first pull-down control module is connected to the first node and the second node, and the first output module is connected to the second node. The second node is used for outputting a second potential to the first pull-down control module under the control of the (j-2a) th level transmission signal so as to control the first pull-down control module to stop outputting the second potential to the first node. The first output module is connected to a first node, and the first node is used for being charged to a first potential under the control of a (j-2b) th level transmission signal so as to control the first output module to output a jth level transmission signal ...

All-in-one machine for processing electronic equipment shell

The invention discloses an all-in-one machine for electronic equipment shell machining, which comprises a first machine table, a second machine table and at least two carrier plates, a rotating seat is mounted at one end of the upper surface of the second machine table, one end of a base plate is mounted on a driving shaft of the rotating seat, and the other end of the base plate extends towards the other end of the second machine table; a machining main shaft provided with a tool bit is arranged above the base plate, the carrier plate is detachably connected with the first machine table and the base plate installed on the second machine table, and a clamping area allowing a thin-wall shell to be embedded is defined by the first limiting block, the second limiting block, the third limiting block and the fourth limiting block. Through cooperative arrangement of the two machine tables, streamlined operation of loading and machining of the to-be-machined thin-wall shell is achieved, and the ...

Multi-source domain sample reweighted EEG signal cross-device decoding method

The invention discloses a multi-source domain sample reweighted EEG signal cross-device decoding method. The method comprises the following steps: acquiring a multi-source domain sample data set obtained by acquiring MI EEG signals of a plurality of subjects and a target domain sample data set obtained by acquiring MI EEG signals of a target subject; training a preset SRENet network by using the first SRENet network and the second SRENet network to obtain a trained target SRENet network; obtaining a decoding result of the to-be-tested sample by using the target SRENet network; wherein the preset SRENet network comprises a feature extractor, a sample reweighting classifier and a condition reweighting discriminator; in a network training process, characteristics extracted by a characteristic extractor are subjected to mobility measurement through a sample reweighting classifier and a condition reweighting discriminator, and a source domain sample which is easier to migrate to a target domain ...

Tongue coating analysis and evaluation system and method

The invention discloses a tongue coat analysis and evaluation system and method. The system comprises a shooting device and a tongue coat analysis and evaluation system. The shooting equipment comprises a camera, a screen, a light supplementing lamp, a controller and the like; the camera is used for shooting a tongue coating picture; the screen displays a tongue placing range; the light supplementing lamp is used for providing soft light; the controller is used for controlling the light intensity and the shooting sensitivity and uploading a tongue coating image to the cloud storage space for tongue coating analysis and result output; and the tongue coating analysis and evaluation system is used for evaluating the tongue coating image shot by the shooting equipment. According to the invention, a tongue coating image with consistent background and without external factor interference can be provided; the disease condition of the patient can be preliminarily judged according to the tongue ...

FILTER

A filter, comprising a support part (1200) used for preventing tilting of the filter and a filter part (1100) used for capturing emboli; in a free state, the support part (120) comprises at least three support rods (1200a) radiating outward from the centre, all of the support rods (1200a) being arranged axisymmetrically; the tail end of the support rods (1200a) or a tangent of the tail end of the support rods (1200a) forms a β≥180° included angle with the central axis of the support part (1200), and the maximum outer diameter of the support part (1200) matches the inner diameter of a blood vessel, such that the support rod (1200a) points are supported on the inner wall of the blood vessel. The present filter is in point contact with the inner walls of a blood vessel, prevents tilting of the instrument, and has a uniform radial support force, effectively reducing endothelial coverage, facilitating instrument capture and recycling, reducing operating time, and prolonging the service life ...

METHOD AND SYSTEM FOR CONFIGURING PUBLIC WARNING SYSTEM KEY INFORMATION IN WIRELESS COMMUNICATION SYSTEM

A method and a system for configuring Public Warning System (PWS) key information in a wireless communication system. The method comprises: a Cell Broadcast Center (CBC) sending to a network entity in a wireless communication system, a message for key distribution carrying PWS key information; and after receiving the message for key distribution, the network entity in the wireless communication system saving the PWS key information. The PWS comprises a CBC and a first network entity. The CBC is configured to send the PWS key information to the first network entity. The first network entity is configured to save the PWS key information. The present invention provides a specific solution of how to obtain PWS key information by a network entity for distributing the PWS key information to a UE, and lays a foundation for the UE obtaining PWS key information from a network and implementing secure protection of a PWS.

1,3,4-OXADIAZOLE-2-CYCLOBUTYL COMPOUNDS, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

The present invention relates to the field of medicinal chemistry, and relates to a class of 1,3,4-oxadiazole-2-cyclobutyl compounds or a pharmaceutically acceptable salt, hydrate, solvate or crystal thereof, and a preparation method therefor and an application thereof. Specifically, provided by the present invention are (((1r,3S)-1-(5-((1S,2R)-1-amino-2-hydroxypropyl)-1,3,4-oxadiazole-2-yl)-3-(cyanomethyl) cyclobutyl) carbamoyl)-L-serine represented by formula (I) or a pharmaceutically acceptable salt, hydrate, solvate or crystal thereof, a method for preparing same, and an application in the treatment of cancer or infectious diseases, (I).

RACK AND UNMANNED AERIAL VEHICLE

An unmanned aerial vehicle, comprising a rack (1), a rotating shaft (2) assembled to the rack (1), and an arm (3) assembled to the rotating shaft (2). The rack (1) comprises a top wall (10) and a bottom wall (11) opposite to each other, as well as an accommodating space (12) located between the top wall (10) and the bottom wall (11). The accommodating space (12) is used for accommodating at least a part of the arm (3). A retainer is provided on at least one of the top wall (10) and the bottom wall (11) of the rack (1). When the arm (3) is in an unfold position, the retainer is abutted against the arm (3) to produce the clipping force to clip the arm (3) between the top wall (10) and the bottom wall (11), so as to ensure the flight performance of the unmanned aerial vehicle.

Sunroof guide rail drive unit

... 本实用新型提供一种汽车天窗导轨传动单元，包括导轨和机械组滚子，所述导轨为一体件、包括后端盖部和导轨部，所述导轨中开设有贯穿后端盖部和导轨部的轨道，所述轨道的外壁为光滑面，所述机械组滚子位于轨道中、并可沿轨道的延伸方向来回滑动。本申请省去了现有技术中导轨与后端盖的拼接结构，使得轨道整体在导轨中延伸、并贯穿导轨部和后端盖部，因此，轨道在导轨部和后端盖部的分界处无台阶结构，是光滑衔接的，故机械组滚子可沿着导轨中的轨道平滑滑动，不会产生台阶噪音；同时，简化了导轨的结构，省去了后端盖，减少了零件数量，便于导轨的加工制造。 ...

Smoke recycling coke oven and system and method thereof

The invention discloses a flue gas recirculation coke making furnace, and a system and a method thereof. The flue gas recirculation coke making furnace comprises a furnace body, a carbonization section, an activation section and a cooling section which are communicated with one another are sequentially arranged in the furnace body from top to bottom; a plurality of material channels are arranged at the parts of the carbonization section and the activation section of the furnace body; the multiple material channels are arranged at intervals, and smoke channels are arranged on the peripheries of the multiple material channels. A flue gas recirculation channel is arranged in the material channel and is communicated with a flue gas recirculation pipeline; sealing sections are arranged at the top, the middle and the bottom of the flue gas recirculation channel, and a plurality of flue gas sub-channels are arranged between every two adjacent sealing sections; the flue gas sub-channel is communicated ...

Handheld intelligent substation equipment management terminal

A handheld intelligent substation equipment management terminal comprises a slot plate and a tablet computer matched with the interior of the slot plate, a vertical plate is arranged on the tablet computer, the vertical plate is detachably connected with the slot plate through a plug-in locking mechanism, a temporary storage groove is formed in the back face of the slot plate, a switchover port capable of being pulled is formed in the temporary storage groove, and the switchover port is connected with the vertical plate through a plug-in locking mechanism. The adapter interface can be connected with a detection interface in an electric control cabinet to realize data transmission, in order to facilitate placement of terminal equipment, a hanging mechanism is further mounted on the slot plate and comprises a telescopic nylon tape, a hook is arranged at the end of the nylon tape, a nylon tape locking mechanism capable of adjusting the extension length of the nylon tape is further mounted ...

Method and device for importing software engineering into standard module library

The invention provides a method and device for importing software engineering into a standard module library, and the method comprises the steps: adding an api directory and an info.json file in a root directory of the module library to design the standard module library, and achieving an external interface and configuration of a standardized code library; and importing the standard module library into the main project by using an importing tool. The invention provides a design standard of an Android engineering function module library and an engineering import tool of the standard, so that the function of an import module in Android engineering development is simplified and standardized, and the learning cost of the library is reduced. The efficient import of the Android engineering module library is realized by realizing the standard design of the module library, using a visual import tool and dynamically adding a corresponding calling code file in a project, and the learning cost of ...

Machine tool chip flushing system, machine tool and machine tool chip flushing method

The invention relates to the technical field of machining equipment, and discloses a machine tool chip flushing system, a machine tool and a machine tool chip flushing method. The chip flushing system of the machine tool comprises a rail arranged in a shell of the machine tool; the monitoring device is suitable for collecting images of the machine tool; the chip flushing device is suitable for flushing chips in the machine tool; the monitoring device and the chip flushing device are arranged on the manipulator, and the manipulator is suitable for adjusting the spatial positions of the monitoring device and the chip flushing device in the shell; the driving mechanism is connected with the manipulator and is suitable for driving the manipulator to move along the track. According to the machine tool chip flushing system, the defect that in the prior art, dead angles exist in the monitoring range and the chip flushing range of a machine tool chip flushing system, so that part of cuttings splashed ...

Polymer thickening agent as well as preparation and application thereof

The invention discloses a polymer thickening agent as well as preparation and application thereof, and the polymer thickening agent is prepared by polymerizing acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, N, N-dimethylacrylamide, vinyl phosphoric acid, N-vinyl pyrrolidone and N-vinyl caprolactam according to the weight ratio of (50 to 65): (15 to 30): (15 to 30): (0.1 to 2): (0.1 to 1): (0.2 to 0.8). The method is convenient to operate, low in cost and wide in market prospect.

Method for processing surface of polycrystalline diamond compact

The invention belongs to the field of polycrystalline diamond compact machining, and particularly relates to a machining method for the surface of a polycrystalline diamond compact. The processing method for the surface of the polycrystalline diamond compact comprises the following steps: after a metal cup on the surface of the synthesized polycrystalline diamond compact is removed, carrying out the following treatments on the polycrystalline diamond compact in sequence: carrying out flat grinding on a hard alloy layer; performing dry chemical etching on the polycrystalline diamond compact; carrying out mechanical rough grinding on the polycrystalline diamond layer; performing laser processing on the hard alloy layer; and carrying out mechanical lapping and mechanical polishing on the polycrystalline diamond layer. According to the method, the surface of the polycrystalline diamond compact is treated through the processes of chemical etching, mechanical rough grinding, mechanical fine grinding ...

Method for obtaining individual age of middle-aged and old men in Chinese population

The invention relates to the technical field of age evaluation, and particularly discloses a method for obtaining age of middle-aged and old male individuals in Chinese population. According to the method for obtaining the individual age of the middle-aged and elderly male of the Chinese population, five brand-new observation sites, namely the fifth lumbar vertebra, the front iliac crest, the rear iliac crest, the partial sacral wing and the partial sacral margin, are adopted, the selected observation sites can be directly exposed after MSCT three-dimensional volume reconstruction, soft tissue on the bone surface does not need to be removed, and operation is easier; accurate measurement can be achieved under the assistance of software, then a quantitative grading standard is achieved, grading assignment is carried out through the quantitative standard, the defect that an existing method depends on experience assignment is overcome, interference of human factors can be effectively reduced ...

Short-focus catadioptric projection system and near-to-eye display device

The invention relates to the technical field of near-to-eye display, in particular to a short-focus catadioptric projection system and a near-to-eye display device.The short-focus catadioptric projection system comprises a first auxiliary lens, a polarization reflection element, a phase delay element, an achromatic lens combination, a beam splitting film and a second auxiliary lens which are coaxially arranged in sequence from the human eye side to a display screen; the first auxiliary lens is used for adjusting the focal power of the system; the achromatic lens combination comprises a first main lens and a second main lens which are glued and is used for reducing the chromatic aberration of the system; the second auxiliary lens is used for correcting the imaging aberration of the system; a light splitting film is arranged on the surface of one side, close to the display screen, of the achromatic lens combination or the surface of one side, close to human eyes, of the second auxiliary lens ...

Method for measuring temperature of balance in hypersonic wind tunnel test process

The invention belongs to the technical field of hypersonic wind tunnel tests, and discloses a hypersonic wind tunnel test process balance temperature measuring method, which comprises the following steps: selecting a measuring point position; welding a thermocouple; pasting a strain gauge; static calibration of the balance; and acquiring test data and analyzing and processing the data. The method for measuring the temperature of the balance in the hypersonic wind tunnel test process is simple, quick in response, easy to implement and accurate in result. The used thermocouple is small in structure, safe and reliable, does not need to change the structure of the balance, can be installed in a gap between the balance and a water cooling sleeve or a heat insulation sleeve, can accurately obtain the temperature of a measuring point position under the condition that the force measuring data and the structural strength of the balance are not affected, and can be used for measuring the temperature ...

Epilepsy prediction method based on domain adversarial multi-level deep convolutional feature fusion network

The invention provides an epilepsy prediction method based on a domain adversarial multi-level deep convolutional feature fusion network. A disclosed epilepsy electroencephalogram data set CHB-MIT is adopted for validity verification: firstly, the data set is preprocessed, and a training set and a test set are established; secondly, constructing a model structure of a domain adversarial multi-level deep convolutional feature fusion network; inputting the preprocessed training set into the model, and carrying out domain confrontation model training; and finally, inputting the test set into the trained model, and carrying out model performance test. The method has the advantages that the multi-level deep feature extraction module is designed, the problem that single-level feature extraction is insufficient is solved, and multi-domain complementation of electroencephalogram information is achieved; and a multi-level self-attention feature fusion module is designed, and through time-space-frequency ...

Plane detection device for municipal engineering

A municipal engineering plane detection device disclosed by the present invention comprises a mounting plate with one side provided with a guide groove and a positioning frame with a positioning hole, the two sides of the outer surface of the mounting plate are fixedly connected with slidable guide blocks, and the top of the mounting plate is provided with an adjusting hole capable of assisting rotation. The inner wall of the adjusting hole is in threaded connection with a rotatable adjusting rod, the inner side wall of the positioning hole is fixedly provided with a laser lamp capable of illuminating, and one end of the mounting plate is sleeved with a main positioning plate capable of being positioned. According to the plane detection device for municipal engineering, through cooperative arrangement of the guide blocks and the guide grooves, the two adjacent mounting plates of the device can be pulled and adjusted, so that the detected position of each mounting plate is changed, and the ...

POSITIVE/NEGATIVE VOLTAGE GENERATION CIRCUIT IN SILICON-ON-INSULATOR PROCESS

Disclosed is a positive/negative voltage generation circuit in a silicon-on-insulator (SOI) process, comprising: an NMOS transistor and a PMOS transistor which constitute a phase inverter, a parasitic diode between the source electrode and the substrate of a metal oxide semiconductor field-effect transistor (MOS transistor) in an SOI process, a first transfer capacitor, a second transfer capacitor, a first output capacitor, a second output capacitor, a first diode arranged between the first transfer capacitor and the first output capacitor, and a second diode arranged between the second transfer capacitor and the second output capacitor. By means of two transistor switches, four capacitors and several diodes, a positive output voltage and a negative output voltage can be generated simultaneously, and the circuit only uses a single-phase clock. Compared with the existing positive voltage generation circuit and negative voltage generation circuit, the circuit of the present invention is simple ...

METHOD, DEVICE AND SYSTEM FOR VISITING MALICIOUS WEBSITE

Embodiments of the present invention provide a method, device and system for visiting a malicious website. The implementation of the method includes: determining whether a website to be visited is a malicious website; and if the website is the malicious website, then obtaining a non-executable preview interface of the webpage of the malicious website for displaying on a terminal. A user can view the information of the website visited by the user through the non-executable preview interface, and because the terminal does not directly visit the malicious website, the terminal would not be in danger, and the safety of the terminal is improved.

USE OF ARTEMISINE DERIVATIVES AND PHARMACEUTICAL SALTS THEREOF

Use of artemisine derivatives and pharmaceutical salts thereof is disclosed by the present invention. Arteether dimer amine, the artemisine derivatives and pharmaceutical salts thereof can inhibit the proliferation of leukemic cells, block the cycle of leukemic cells, and induce the apoptosis of leukemic cells. Arteether dimer amine, the artemisine derivatives and pharmaceutical salts thereof in the present invention can be used to manufacture medicaments in treating leukemia, especially in treating acute leukemia, more especially in treating acute myeloid leukemia.

FOLDABLE PROPELLER AND UNMANNED AERIAL VEHICLE

A foldable propeller, comprising a first blade (20), a second blade (30), a mounting seat (10), and an anti-swing member. The mounting seat (10) is rotatably connected to a driving mechanism of an unmanned aerial vehicle; one end of the first blade (20) and one end of the second blade (30) are rotatably connected onto the mounting seat (10); the driving mechanism drives the mounting seat (10) to rotate, so as to drive the first blade (20) and the second blade (30) to rotate around a rotating center of the mounting seat (10); the anti-swing member is used for applying pressure or tension to the first blade (20) and the second blade (30), so that a connection relationship is established between the first blade (20) and the second blade (30), and positions of the first blade (20) and the second blade (30) are limited. Also disclosed is an unmanned aerial vehicle. A force relationship can be established between the first blade (20) and the second blade (30) by providing the anti-swing member ...

NEAR FIELD COMMUNICATION DISCOVERY METHOD, APPARATUS AND SYSTEM

Disclosed are a near field communication discovery method, apparatus and system. The method includes: a discovery terminal receives discovery information allocated by a network side to a discovered terminal, wherein the discovery information includes a discovery identifier, and the discovery information is sent by the network side to the discovered terminal; the discovery terminal utilizes the discovery identifier to perform paging or broadcasting; and the discovery terminal receives a response returned by the discovered terminal to confirm the discovery of the discovered terminal.

DYNAMIC STEREO AND HOLOGRAPHIC IMAGE DISPLAY

A dynamic stereo and holographic image display, comprising: an image acquisition lattice (101), an encoder (102), a display panel (103), and a light shielding matrix (104); the image acquisition lattice (101) acquires an image at each acquisition point; the encoder (102) outputs the image acquired at each acquisition point to the corresponding block of the display panel (103) for display; the display panel (103) displays the corresponding image in each block; and the light shielding matrix (104) is disposed in the front of the display panel (103), and restricts the emission of the light in a specific block in the display panel (103) through the control of the encoder (102). The display can display a dynamic stereo and a holographic image, thus directly reflecting the different real facets of an object.

PATCH PANEL FOR PRE-TERMINATED HIGH-DENSITY OPTICAL FIBER

A patch panel for pre-terminated high-density optical fiber, comprising an enclosure, a plurality of optical fiber configuration modules, and a plurality of mounting racks: a plurality of optical fiber interfaces are integrated in the plurality of optical fiber configuration modules; the plurality of optical fiber configuration modules are mounted in the plurality of mounting racks; the enclosure comprises a partition, and the enclosure is divided into a left end and a right end by means of the partition; a plurality of slide rails are formed, and distributed from top to bottom, on two sides of the partition and on the inner walls of the enclosure; the mounting racks are arranged in the enclosure by means of the slide rails. The present invention achieves high-density integration, high-strength security, and protection of pre-terminated optical fiber. The partitioned enclosure and the multiple layers of mounting racks allow for ample cable routing, and prevents the risk of machine malfunction ...

METHOD AND APPARATUS FOR IMPLEMENTING PULSE SYNCHRONIZATION

A method and an apparatus for implementing pulse synchronization are provided in the present invention, which relate to the communications field and reduce the control complexity of a single chip multiple channel device. The method for implementing pulse synchronization includes the following steps: when a cycle count value corresponding to a reference symbol port among multiple ports reaches a preset pulse cycle length value, cycle count values corresponding to the multiple ports are obtained by a microprocessor (101); based on the preset pulse cycle length value and the cycle count values corresponding to the multiple ports, temporary synchronization cycle length values corresponding to the multiple ports are obtained (102); the temporary synchronization cycle length values are transmitted to logic circuits corresponding to the multiple ports (103). The embodiments of the present invention are mainly used to output pulse symbol synchronously in communication system.

ADJUSTABLE BEND CATHETER SUITABLE FOR LEFT-HAND OPERATION

An adjustable bend catheter suitable for left-hand operation, comprising a catheter tube (1100), a handle assembly (1200), and a Luer connector (1300). The handle assembly (1200) comprises a holding handle (1230), a slide mechanism, and a slide control mechanism; a proximal end of the catheter tube (1100) passes through a cavity of the holding handle (1230) to be connected with the Luer connector (1300); the slide mechanism comprises a slide base body (1220) disposed in the cavity of the holding handle (1230) or in the slide control mechanism, and a slide member (1260) axially sliding along the holding handle (1230) and fit on the slide base body (1220); the slide member (1260) is fixedly connected to a pull wire (1120); the slide control mechanism comprises a connecting member (1261, 3264, 4262) connected with the slide member (1260), and a drive adjustment member connected with the connecting member (1261, 3264, 4262) and adjusting the position of the slide member (1260); the drive adjustment ...

Road slope estimation method, device and equipment and storage medium

The invention discloses a road surface gradient estimation method, device and equipment and a storage medium, and the method comprises the steps: obtaining the accelerator opening degree, the steering wheel angle and the vehicle speed of a current vehicle according to an established vehicle marking model, so as to determine the longitudinal acceleration of the current vehicle; according to the current vehicle longitudinal acceleration, the vehicle accelerator opening degree, the vehicle steering wheel turning angle and the vehicle speed, the current slope value is calculated; and according to the current vehicle positioning information, acquiring a gradient value updated in real time, and comparing the current gradient value with the gradient value updated in real time to determine the actual gradient of the road surface. According to the method, longitudinal driving control of the automobile can be more accurate, the requirement that the intelligent automobile needs a high-precision stop ...

Self-crawling back-blowing internal clamp capable of being overheated and bent and application of self-crawling back-blowing internal clamp

The invention provides a self-crawling back-blowing internal clamp capable of being overheated and bent and application thereof.The self-crawling back-blowing internal clamp comprises a crawling driving module, a clamp module and a control module, and the crawling driving module and the clamp module are connected through a flexible connecting piece; the crawling driving module comprises a shell, a servo motor, a speed reducer, at least one driving wheel set and at least two walking wheel sets, each driving wheel set comprises at least two driving wheels, each walking wheel set comprises at least two walking wheels, the driving wheels and the walking wheels are connected with the shell, the two driving wheels are arranged at intervals in the axial direction of the shell, and the servo motor is connected with the shell. The two walking wheels in each walking wheel set are arranged in the axial direction of the shell in a spaced mode. The servo motor and the speed reducer are installed in ...

Highway traffic bottleneck identification and queuing prediction method and system, and storage medium

The invention discloses a highway passing bottleneck identification and queuing prediction method and system and a storage medium. The method comprises the steps that real-time upstream and downstream traffic flow parameters are acquired, and the traffic flow parameters comprise the passing speed and the flow rate; a bottleneck validity activation condition is set, and bottleneck identification is carried out according to the traffic flow parameters; identifying a persistence of the activation bottleneck over a plurality of consecutive time periods; recognizing a congestion state and a congestion occurrence moment according to the speed change relation; establishing a queuing length prediction method according to the congestion occurrence time; and applying the queuing length prediction method to predict the queuing length of the bottleneck congested road section. According to the technical scheme, the bottleneck position and the duration time can be accurately identified, and the defect ...

Steering flow guide structure for concrete pouring

The invention belongs to the technical field of concrete pouring, and particularly relates to a steering flow guide structure for concrete pouring. The steering flow guide structure comprises a movable guide rack, the movable guide rack comprises a movable rack body and a guide channel arranged on the movable rack body, the movable rack body is used for driving the guide channel to move, and the guide channel is used for bearing concrete falling from a concrete pump truck and guiding the concrete; and the flow guide groove is located below the guide channel, and the gradient of the flow guide groove is gradually reduced. According to the steering flow guide structure, the guide channels and the flow guide grooves are formed, so that concrete can fall down more smoothly, and concrete segregation is avoided; and by arranging the swing mechanism, the flow guide groove can swing in a reciprocating mode in the horizontal direction, the pouring range of the flow guide groove is enlarged, and ...

Webpage theme relevancy discrimination method

The invention discloses a webpage theme relevancy judgment method. The method comprises the steps of 1, training a word vector model; 2, setting subject terms, and constructing a user subject term set; step 3, removing the to-be-evaluated webpage label to obtain a document only comprising a title and text characters; 4, extracting keywords of the document, and constructing a webpage keyword set of the webpage to be evaluated; step 5, generating word vectors; 6, sequentially calculating cosine distances between the keyword vector set of the webpage to be evaluated and word vectors in the user subject word vector set, and selecting the maximum value; step 7, solving an average value of all keywords of the to-be-evaluated webpage, and taking the average value as theme relevancy of the to-be-evaluated webpage; and step 8, setting a theme correlation degree threshold value, and judging whether themes are related or not. According to the method, the pre-training word vector model is used for ...

Generator set tail gas treatment device and method

The generator set tail gas treatment device comprises a fixing base, a speed reduction box, a filtering box, a purifying box and a drying box are sequentially and fixedly connected to the upper side wall of the fixing base from left to right, a drying mechanism is arranged in the drying box, an exhaust pipe is connected to the right side of the drying box, and a gas inlet pipe is arranged on the left side of the speed reduction box; a plurality of first air passing holes are jointly formed in the joint of the speed reduction box and the filtering box. A generator set tail gas treatment method comprises the following steps that generator set tail gas is introduced into the gas inlet pipe and then is divided into the filter box through the branch pipes and the first gas passing holes, and the speed reduction and noise reduction effects are achieved. The filter frame can be taken out, so that the activated carbon balls can be conveniently replaced, the filter frame can be conveniently cleaned ...

Surface engineering modified two-dimensional titanium carbide memristor and preparation and application thereof

The invention belongs to the technical field of binary data storage, and particularly relates to a surface engineering modified two-dimensional titanium carbide memristor and preparation and application thereof. The surface engineering modified two-dimensional titanium carbide memristor comprises a conductive substrate layer, a metal electrode layer and a functional film layer arranged between the conductive substrate layer and the metal electrode layer, the functional film layer comprises a modified two-dimensional titanium carbide layer and graphene oxide layers arranged on the surfaces of the two sides of the modified two-dimensional titanium carbide layer, and the modified two-dimensional titanium carbide layer is a celestite blue modified two-dimensional titanium carbide layer. The conductivity problem of the two-dimensional titanium carbide metal is solved through surface engineering modification, and the application range of the two-dimensional titanium carbide metal in the field ...

Braking creeping moan noise evaluation method based on deep convolutional neural network

The invention relates to a braking creeping moan noise evaluation method based on a deep convolutional neural network. The method comprises the following steps: acquiring an original acceleration signal through an acceleration acquisition device; extracting a corresponding time-frequency characteristic pattern from the original acceleration signal; constructing and training a deep learning evaluation model based on the acceleration data with subjective scores; and analyzing the extracted time-frequency feature map by using a trained deep learning evaluation model to obtain an expression score of the mopping moan. Compared with the prior art, the braking noise is automatically analyzed and evaluated, the evaluation speed is high, manual participation is not needed, manpower and time cost are saved, and meanwhile higher accuracy and scientificity are achieved.

External grounding construction device for concrete pile foundation of power transmission line tower

The invention relates to the technical field of power system power transmission line lightning protection and grounding, in particular to a power transmission line tower concrete pile foundation external application grounding construction device which comprises a pinch plate, the pinch plate is arranged on a power transmission line tower in a buckled mode, the power transmission line tower is installed at the top of a concrete pile foundation, and a clamping installation mechanism is arranged on the surface of the pinch plate. After the clamping mounting mechanism is locked, the pinch plate is fixed on the power transmission line tower, the surface of the pinch plate is provided with an assembling piece, and the assembling piece is connected with the pinch plate and the grounding rod; the power transmission line tower concrete pile foundation external application grounding construction device has the beneficial effects that the grounding rod and the buckle plate are rapidly spliced through ...

RADIO-FREQUENCY POWER AMPLIFICATION CIRCUIT AND RADIO-FREQUENCY MODE ADJUSTMENT METHOD

Provided is a radio-frequency power amplification circuit. The radio-frequency power amplification circuit comprises: a power amplification sub-circuit (210, 310, 710) and an output matching sub-circuit (220, 320, 720), wherein the power amplification sub-circuit (210, 310, 710) is used for selecting, according to a received control signal corresponding to a radio-frequency mode, a power amplification parameter corresponding to the radio-frequency mode to amplify a received radio-frequency signal, and outputting the amplified radio-frequency signal; the output matching sub-circuit (220, 320, 720) is connected to the power amplification sub-circuit (210, 310, 710) and is used for receiving the amplified radio-frequency signal, and transmitting, according to the control signal, the amplified radio-frequency signal by using an impedance corresponding to the radio-frequency mode. Also provided is a radio-frequency mode adjustment method.

SELF-CLEANING CONTROL METHOD FOR AIR CONDITIONER, AND AIR CONDITIONER

The present invention relates to the technical field of air conditioners and aims at solving the problem that an existing air conditioner cannot determine the time when a self-cleaning mode is activated. Therefore, the present invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises an indoor unit. The self-cleaning control method comprises: in a current state, allowing the air conditioner to perform standard operation; obtaining the coil temperature of the indoor unit; determining whether the coil temperature of the indoor unit is greater than a first standard temperature value; if the coil temperature of the indoor unit is greater than the first standard temperature value, further obtaining at least one of the exhaust temperature of a compressor and the coil temperature of an outdoor unit; and determining, according to the exhaust temperature of the compressor and the coil temperature of the outdoor unit, whether to activate a self-cleaning ...

METHOD, DEVICE AND SYSTEM FOR BROADCASTING AND MONITORING DEVICE-TO-DEVICE LIMITING DISCOVERY SERVICE

The present invention provides a method, device and system for broadcasting and monitoring a device-to-device (D2D) limiting discovery service. The broadcasting method comprises: a broadcasting terminal (A-UE) sends a service request message to a distance-based service (ProSe) server (S402); the A-UE receives a discovery service code that is acquired after the ProSe server successfully authenticates the service request message (S404); and the A-UE broadcasts the discovery service code (S406). The present invention solves the problem in the prior art of a complex process of implementing a D2D discovery service due to the fact that a limiting discovery service must require service permission of a ProSe server, so that an A-UE can directly acquire broadcast or authentication permission from the ProSe server instead of using a ProSe functional entity, thereby simplifying the process steps of the discovery service.

Mobile phone fixing bracket

... 本实用新型提供一种手机固定架，包括由4根支架组成十字形的支撑架，所述4根支架的一端在中心点处相互连接固定，所述4根支架上都设置有挡板，所述挡板可沿设置在所述支架上的滑道滑行，所述挡板通过回复机构与中心点连接。本实用新型的有益效果是：将本装置固定在一个可以灵活弯曲旋转的支杆上，就可以随意进行手机的位置固定，便于通话或观看视频。 ...

Car panorama skylight waterproofing mechanism

... 本实用新型提供一种汽车全景天窗防水机构，包括相互连接的天窗框架和车顶，所述天窗框架和车顶上都开设有用于安装行李支架的第一安装孔，所述天窗框架的下端面固设有位于天窗框架和车顶之间的密封支架，该密封支架上开设有与第一安装孔相对设置、且相通的第二安装孔，所述天窗框架和车顶之间形成有位于密封支架外侧的密封槽，所述密封槽和第一安装孔、第二安装孔由密封支架的外边缘部封堵，所述密封槽中填充有密封胶条。本申请通过在天窗框架和车顶之间设置密封支架，从而封堵用于填充密封胶条的密封槽和用于安装行李支架的第一安装孔，在往密封槽中注入密封胶时，密封胶不会堵住第一安装孔，从而保证行李支架的顺利安装，还能保证防水密封性。 ...

Cascade control system of DMFC system and control method thereof

The invention provides a cascade control system of a DMFC system and a control method thereof, which can realize inter-system difference minimization and parallel use effect maximization in the whole life cycle of a product, can support cascade connection of a plurality of systems, refine a power supply gradient, provide more possibilities for load matching, and improve product quality. According to the technical scheme, the cascading control system of the DMFC system comprises a cascading controller, the cascading controller comprises an MCU unit, an environment sensor, a fuel sensor, a remote communication module, a positioning module, a power supply unit and an interface, the interface is connected with a bus interface, the bus interface is provided with a plurality of branching interfaces, and the branching interfaces are connected with the DMFC system.

Control circuit of electric forklift safety device

The invention discloses a control circuit of an electric forklift safety device, and particularly relates to the technical field of electric forklift safety, the control circuit comprises a control loop formed by a storage battery, a key switch, a pump controller module and a driving controller module, and the control loop further comprises a power-off delay box and a relay S1 in a finished automobile automatic delay power-off circuit; the two ends of the key switch are connected with the positive electrode of the storage battery and the input end IN of the power-off delay box respectively, and the input end 1A1 of the driving controller module and the input end 2A1 of the pump controller module are both connected with the output end OUT of the power-off delay box through connecting wires. And an input end and an output end of a contact of the relay S1 are respectively connected with an output end 2A3 of the pump controller module and a control port C of the power-off delay box. By arranging ...

Underwater node fixed laying device suitable for deepwater submersible

The invention relates to the field of underwater node fixed laying, in particular to an underwater node fixed laying device suitable for a deepwater submersible. Comprising a first-stage frame, a second-stage frame and a third-stage frame, the first-stage frame is arranged in the second-stage frame, the bottom of the second-stage frame is in butt joint with the third-stage frame, the top of the first-stage frame is in butt joint with a deepwater submersible, a node laying mechanism is arranged at one end of the first-stage frame, and a drilling machine mechanism is arranged at the other end of the first-stage frame. The node is firmly fixed to the seabed in a drilling anchoring mode, underwater secondary butt joint is carried out through the submersible vehicle, and drilling, fixing and node laying are completed through one-time diving.

Polishing device and method

The invention relates to the technical field of grinding devices, and provides a grinding device and method. The polishing device comprises a mounting mechanism, a positioning mechanism and a polishing mechanism; the mounting mechanism is suitable for being connected with the two ends of the to-be-polished part in the length direction so as to support and position the to-be-polished part and is used for adjusting the pitching angle of the to-be-polished part. The positioning mechanisms are suitable for being arranged on the two sides of the to-be-polished piece in the width direction. The polishing mechanism is installed on the positioning mechanism and used for polishing the to-be-polished part. The defects that in the prior art, automatic grinding precision is difficult to control, and manual grinding is high in strength and low in efficiency are overcome, and the grinding efficiency and precision are improved.

Data management method, data storage system and computing equipment

A data management method, a data storage system and a computing device, a target data table and an auxiliary public key of a fully homomorphic encryption algorithm corresponding to the target data table are stored in the data storage system, and a field value under a target field in the target data table comprises a field value ciphertext obtained by processing plaintext data based on the fully homomorphic encryption algorithm. The data storage system may receive a target query request from a computing device, wherein an operation is indicated to be performed on a field value under a target field; then, whether the operation needs to use an auxiliary public key or not can be determined, if yes, the operation is executed on the field value under the target field according to the fully homomorphic encryption algorithm and the auxiliary public key, a first query result is obtained according to the execution result of the operation, and the first query result is sent to the computing device ...