休闲椅（蛇休闲椅）

休闲椅（狗）

休闲椅（S）

电热水龙头（希贵JHC33A）

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Super-hydrophobic anti-drag coating as well as preparation method and application thereof

The invention discloses a super-hydrophobic anti-drag coating as well as a preparation method and application thereof, and the preparation method comprises the following steps: S1, adding micron silicon dioxide and nano ZIF-8 into an SEBS (Styrene-Ethylene-Butylene-Styrene) solution, and uniformly mixing; and S2, spraying the mixed solution prepared in the step S1 on a substrate to obtain the super-hydrophobic anti-drag coating, wherein the mass ratio of the dosage of the micron silicon dioxide to the dosage of the nano ZIF-8 to the dosage of the SEBS is (1.2 to 2.4) to (0.3 to 0.6) to (2.4 to 3). The contact angle of the prepared coating can reach 168.34 degrees, the maximum drag reduction rate is 38%, and the coating has excellent super-hydrophobic performance and drag reduction performance. And the prepared coating has excellent stability, so that the coating is not easy to crack and fall off in the long-term service process.

Agricultural park load response optimization method and system, and electronic equipment

The invention provides an agricultural park load response optimization method and system and electronic equipment, and belongs to the field of power optimization, and the method comprises the steps: determining the maximum response capacity of an interruptible load according to the day-ahead operation data of the interruptible load; based on a flexible load monomer mathematical model, according to the environmental parameters, the day-ahead operation data of the humidifying load, the day-ahead operation data of the temperature control load, the day-ahead operation data of the light supplementing load and the minimum value of the total daily amount of photosynthetically active radiation, the maximum response capacity of the humidifying load, the maximum response capacity of the temperature control load and the maximum response capacity of the light supplementing load are determined; according to the maximum response capacity of each flexible load, taking the maximum response capacity of ...

Multi-rotor aircraft capable of hovering in any attitude

The invention discloses a multi-rotor aircraft capable of hovering in any attitude, and belongs to the field of aircraft structure design, the whole aircraft is composed of carbon fiber tubes and printing pieces, adjacent carbon tubes are connected and reinforced through 3D printing pieces, observation is carried out with the upper vertex as a reference point, the center part is a regular tetrahedron, and the three-dimensional printing pieces are arranged on the carbon fiber tubes. The three-side structure units extend in the normal direction of the tetrahedron frame, the six extending three-side structure units are combined with the tetrahedron frame, the whole unmanned aerial vehicle is in central symmetry, and the problem that a common multi-rotor unmanned aerial vehicle cannot hover at any angle can be solved.

Gene for regulating and controlling low-temperature germination of rice and application thereof

The invention belongs to the technical field of molecular breeding, and particularly relates to a gene for regulating and controlling low-temperature germination of rice and application of the gene. In order to excavate the low-temperature germination gene of the rice, after the rice overexpresses LOCOs09g11480 by utilizing a ubiquitin promoter, the low-temperature germination rate of a transformed plant seed is obviously reduced, which indicates that the gene can negatively regulate the low-temperature stress resistance of the rice, the expression of the LOCOs09g11480 gene is expected to be reduced through a gene editing technology, and the gene is applied to genetic engineering breeding of the rice. Finally, the cold resistance of the rice in the germination period is improved, and popularization and application of direct-seeding rice are promoted. It is proved for the first time that the rice gene LOCOs09g11480 is a functional gene for regulating and controlling low-temperature germination ...

Preparation method of flexibilizer for polyvinyl chloride

The invention relates to the technical field of toughening agents, and discloses a preparation method of a toughening agent for polyvinyl chloride, which comprises the following steps: (1) carrying out low-temperature plasma modification treatment on waste rubber powder to obtain modified waste rubber powder; (2) preparing composite SiO2 microspheres; and (3) sequentially adding the modified waste rubber powder, the composite SiO2 microspheres and an ethylene-vinyl acetate copolymer into an extruder, and carrying out melt extrusion granulation, so as to obtain the product, in the preparation process of the flexibilizer for polyvinyl chloride, the flexibilizer is prepared by mixing the modified waste rubber powder, the composite SiO2 microspheres and the ethylene-vinyl acetate copolymer, so that the toughness of a polyvinyl chloride material can be greatly improved, and the activity of the waste rubber powder can be improved by performing low-temperature plasma treatment on the waste rubber ...

GALLIUM NITRIDE HIGH ELECTRON MOBILITY TRANSISTOR HAVING HIGH BREAKDOWN VOLTAGE AND FORMATION METHOD THEREFOR

A gallium nitride high electron mobility transistor having a high breakdown voltage, and a formation method therefor. The high electron mobility transistor comprises: a substrate (200); a gallium nitride channel layer (303) located on the substrate; a first barrier layer (305) located on the gallium nitride channel layer; located on the first barrier layer, a gate (603), a source (601) and a drain (602), the source and the drain being respectively located at two sides of the gate; and a second barrier layer (400a) located on the surface of the first barrier layer between the gate and the drain, a side wall of the second barrier layer being connected to a side wall at one side of the gate for generating two-dimensional hole air. The high electron mobility transistor has higher breakdown voltage.

休闲椅（猪休闲椅）

休闲椅（猴子）

多功能椅

Photocatalytic ceramic membrane preparation method and integrated photocatalytic ceramic membrane water treatment device

The invention discloses a photocatalytic ceramic membrane preparation method and an integrated photocatalytic ceramic membrane water treatment device. The method comprises steps: preparing a graphene oxide-titanium oxide composite nanoparticle dispersion liquid, wherein the doping amount of graphene oxide in the dispersion liquid is greater than 0 and less than 10%; and then combining the composite nanoparticles onto a ceramic membrane through a vacuum filtration method to form a modified ceramic membrane with a nanoparticle coating, and carrying out heat treatment at the temperature of more than 160 DEG C to strengthen the performance of the modified ceramic membrane so as to obtain the photocatalytic ceramic membrane. The device comprises an integrated UV-membrane treatment unit, the unit comprises a UV light source and the photocatalytic ceramic membrane, and the UV light source can directly irradiate the photocatalytic ceramic membrane to achieve photocatalytic activation. The device ...

Adaptive finite element method for three-dimensional electromagnetic potential forward modeling

The invention discloses a self-adaptive finite element method for three-dimensional electromagnetic potential forward modeling. The self-adaptive finite element method comprises the following steps: S1, converting a Maxwell equation set into a control equation of a scalar bit and a vector bit by utilizing a Coulomb standard; s2, a gradient term of a Lagrangian multiplier is introduced in the control equation, a solving region is discretized, and a finite element linear equation set is constructed; s3, solving the finite element linear equation set; s4, using an error generated by current density discontinuity as a posterior error estimator, performing dual weighting on the posterior error estimator, and determining a target grid needing to be refined; s5, encrypting the target grid by using an eight-division refining strategy; and S6, performing finite element forward modeling calculation by using the encrypted grids. According to the method, the stability in the finite element system equation ...

Social network graph structure anonymization processing method and device

The invention provides a social network graph structure anonymization processing method and device, and belongs to the technical field of data security. According to the method, original graph data corresponding to a social network graph structure is obtained, each node in the original graph data represents one user, and an edge formed by a connecting line between any two nodes represents the relationship between two corresponding users; determining a privacy edge in all edges corresponding to the original graph data, and deleting the privacy edge in the original graph data to obtain a preprocessed graph; inputting the preprocessed graph into a pre-trained anonymous graph generation model, so that the anonymous graph generation model outputs a corresponding anonymous graph; wherein the anonymous graph generation model uses a graph embedding technology to extract graph embedding characteristics of the preprocessed graph, and outputs a corresponding anonymous graph based on the graph embedding ...

Train part anomaly detection method and device, electronic equipment and medium

The invention discloses a train part anomaly detection method and device, electronic equipment and a medium, and the method comprises the steps: obtaining 3D detection data and vehicle type information of a to-be-detected train, the detection data being image data or point cloud data; dividing the 3D detection data into a plurality of component areas according to the vehicle type information, wherein each component area comprises more than one component; performing abnormal state detection on each component in each component area, and determining an abnormal area in each component area; and according to an overlapping relation between the abnormal area and each part in the corresponding parts, judging an abnormal type. The method has the advantages of being simple in implementation method, low in cost, high in detection efficiency and precision, low in repeated alarm rate and false alarm rate and the like.

Transformer comprehensive monitoring and early warning method, device, medium and equipment

The invention discloses a comprehensive monitoring and early warning method and device for a transformer, a medium and equipment. The method comprises the steps that the amplitude and frequency of high-frequency and ultrasonic partial discharge signals of a transformer are monitored in real time within a preset time range, and the transformer is 500kV or above; respectively carrying out absolute value judgment on the amplitude and frequency of the high-frequency and ultrasonic partial discharge signals by utilizing a preset relative threshold value, and determining an absolute value decision result; performing relative value judgment on the amplitudes and frequencies of the high-frequency partial discharge signal and the ultrasonic partial discharge signal by using a preset relative threshold, and determining a relative value decision result; and carrying out AND/or decision making on the absolute value decision result and the relative value decision result through preset joint logic, and ...

Equivalent circuit structure of QLED and parameter identification and correction method thereof

The invention discloses an equivalent circuit structure of a QLED and a parameter identification and correction method thereof. The equivalent circuit model comprises an anode resistor Ranode, a cathode resistor Rcatode, a body capacitor Cbody, a body resistor Rbody, a diode resistor Rdio, a diode capacitor Cdio, an ideal diode Diode and an ideal direct current voltage source DC. Based on trapped charge limiting current and space charge limiting current theories, the device is simple in structure and convenient to use, fitting errors of the model to actual data are reduced through a parameter identification and correction method, model parameter matching precision is improved, requirements of micro-display circuit analog simulation design can be met, and the device has actual engineering application value; according to the method, parameter errors can be reduced, fitting accuracy can be improved, all experimental data are fully utilized, and finally obtained model parameters better fit ...

Laser stitch welding combined pressing device and using method thereof

The invention relates to the technical field of pressing devices, in particular to a laser stitch welding combined pressing device and a using method.The laser stitch welding combined pressing device comprises a platen, a plurality of supporting legs are fixedly connected to the bottom of the platen, two through grooves are formed in the platen, a U-shaped plate is arranged at the top of the platen, and the bottom of the U-shaped plate penetrates through the two through grooves; the U-shaped plate, the pressing plate, the threaded rod and the connecting plate are arranged, the threaded rod is rotated to drive the connecting plate to move downwards, the connecting plate drives the pressing plate on the U-shaped plate to move downwards, and stacked steel plates are pressed and fixed through downward movement of the pressing plate. Manual pressing of workers is replaced, hurt to the hands of the workers in the welding process can be effectively avoided, and meanwhile welding dislocation caused ...

Strontium-zirconium-titanium-yttrium quaternary composite microalloyed 800MPa-strength-grade high-performance aluminum alloy and preparation method thereof

The invention relates to a strontium-zirconium-titanium-yttrium quaternary composite microalloyed 800MPa-strength-grade high-performance aluminum alloy and a preparation method thereof, and is characterized in that the aluminum alloy mainly comprises the following components in percentage by mass: 11.0-11.5% of zinc, 3.09-3.11% of magnesium, 1.21-1.26% of copper, 0.0092-0.0188% of strontium, 0.265-0.362% of zirconium, and the balance of yttrium. The mass percent of titanium is 0.0647-0.127%, the mass percent of yttrium is 0.15-0.45% (nominal), and the balance is aluminum and a small amount of impurity elements; the sum of all the components is 100%. The preparation method of the alloy sequentially comprises the following steps: (1) casting; (2) carrying out homogenization treatment; (3) hot extrusion; (4) solution treatment; and (5) aging treatment. The maximum strength of the alloy can reach 797.932 MPa, meanwhile, the percentage elongation after fracture is 6.0%, and the maximum intergranular ...

Energy-saving dust-filtering air conditioner linkage system

The invention discloses an energy-saving dust-filtering air-conditioning linkage system, relates to the technical field of air-conditioning linkage systems, and aims to solve the problems that an existing blowing-carding dust-filtering system and an air-conditioning system are mostly independent, the blowing-carding dust-filtering system needs to be paused when equipment is cleaned, an air conditioner worker cannot turn off an air conditioner in time, hot air in a workshop is frequently exhausted, and the air-conditioning efficiency is high. In order to solve the problems that in the prior art, heat sources and power consumption are wasted, meanwhile, the temperature and humidity of a workshop cannot meet the requirements, and the using effect is not ideal enough, the following scheme is provided: the system comprises a PLC, a handheld mobile terminal, a control switch, a Bluetooth module, a temperature sensor, a network module and a data storage module; and the output end of the handheld ...

Short-term load prediction method based on VMD-PCF-ARIMA

The invention relates to a short-term load prediction method based on VMD-PCF-ARIMA. The short-term load prediction method comprises the following steps: step 1, collecting a historical power load time sequence curve of a to-be-predicted region; 2, carrying out modal decomposition on the collected historical power load time sequence curve of the to-be-detected area by adopting a VMD algorithm to obtain a linear trend component and a nonlinear fluctuation component; 3, calculating a prediction time sequence of the linear trend component by adopting a PCF method; 4, performing stationary sequence prediction by adopting an ARIMA method, and calculating a prediction time sequence of a nonlinear fluctuation component; and 5, superposing the prediction time sequence of the linear trend component obtained in the step 3 and the prediction time sequence of the nonlinear fluctuation component obtained in the step 4 to obtain a prediction value of the power load. According to the invention, rapid ...

Preparation method of photoelectric material monomer, photoelectric material monomer and application

The invention discloses a preparation method of a photoelectric material monomer, the photoelectric material monomer and application. The preparation method of the photoelectric material monomer provided by the invention comprises the following step: reacting 1, 1 '-thio-bis (2-naphthol) and ethylene carbonate under the condition of base catalysis to obtain the photoelectric material monomer 2, 2'-bis (2-hydroxyethoxy)-1, 1 '-thio-binaphthalene. The raw material ethylene carbonate is wide in applicability, only a CO2 byproduct is generated after the reaction, and the method is environment-friendly; the reaction conditions are mild, the reaction time is short, and the yield is high; the separation and purification process is simple and the purity is high. The method has the advantages of greenness, environmental protection, economy and the like, and is suitable for large-scale industrial production.

Oil filler cap with lock cylinder

The oil filler cap comprises a cap body (1), the lock cylinder (2) is installed in the center of the cap body (1), a limiting clamping ring (3), a lock body (4) and a pressing plate (5) are sequentially installed in the cap body (1), a movable lug installation base (6) is installed in the lock body (4), a movable lug (7) is installed in the movable lug installation base (6), an eccentric boss (8) is formed at the end of the lock cylinder (2), and the pressing plate (5) is installed in the eccentric boss (8). The eccentric boss (8) is connected with the movable lug (7), and a limiting boss (9) matched with the movable lug (7) is arranged in the lock body (4). The oil filler cap has a locking function, can effectively prevent the oil filler cap from being opened maliciously, and has good sealing performance.

Myricetin oxidation product as well as preparation method and application thereof

The invention relates to the technical field of biochemistry, and discloses a myricetin oxidation product and a preparation method and application thereof.The myricetin oxidation product is obtained by modifying myricetin through a horse radish peroxidase catalysis method for the first time, and the myricetin oxidation product has the advantages that the water solubility of myricetin is improved, and meanwhile the water solubility of myricetin is improved; most of the antioxidant activity of myricetin is reserved, IC50 values of the myricetin on DPPH, ABTS and hydroxyl radical scavenging rates are 30.62 mu M, 97.11 mu M and 3.795 mM in sequence, and the reduction ability retention degree of the myricetin on iron ions reaches about 90%; the anti-staphylococcus aureus activity is remarkably improved, and the minimum inhibitory concentration and the minimum bactericidal concentration are reduced by half compared with those of myricetin. The compound can be used as a staphylococcus aureus inhibitor ...

TREATMENT USE OF PYRROLOPYRIMIDINE COMPOUND, AND SOLID PHARMACEUTICAL COMPOSITION OF PYRROLOPYRIMIDINE COMPOUND

A treatment use of a pyrrolopyrimidine compound, and a solid pharmaceutical composition of a pyrrolopyrimidine compound. In particular, the present invention relates to a pyrrolopyrimidine compound or a pharmaceutical composition thereof for treating myeloproliferative neoplasms, and a method therefor or a use thereof.

METHOD AND DEVICE FOR INFORMATION PROCESSING, AND SERVER

Provided in the embodiments of the present invention are a method and a device for information processing, and a server. The method comprises: receiving a skill performing request of a first virtual object that is sent by a first client, the skill performing request being used for requesting to perform a first skill; determining the number of virtual objects within the view range of the first virtual object in a virtual scene; if the number of the virtual objects within the view range is greater than a preset threshold, selecting target virtual objects from the view range of the first virtual object, the number of the target virtual objects corresponding to the preset threshold; and determining a first broadcast notification that is generated in response to the skill performing request, and sending the first broadcast notification to the clients of the target virtual objects, the first broadcast notification being used for notifying to present the action of the first virtual object performing ...

High-calorific-value combustible solid waste improved calcium magnesium phosphate fertilizer and preparation method thereof

The invention discloses a high-calorific-value combustible solid waste improved calcium magnesium phosphate fertilizer and a preparation method thereof. The improved calcium magnesium phosphate fertilizer is prepared by processing a calcium magnesium phosphate fertilizer raw material and combustible solid wastes. Combustible solid waste can replace traditional coke for preparing combustion, and waste recycling is achieved through the high calorific value of the combustible solid waste. The method comprises the following steps: mixing the combustible solid wastes with phosphorite and magnesium silicate minerals, carrying out pyrolysis treatment by using a rotary furnace, carrying out negative pressure cooling on the mixed melt, drying and grinding to obtain the calcium magnesium phosphate fertilizer, or mixing the combustible solid wastes as a fuel and combusted ash into the calcium magnesium phosphate fertilizer according to a specific ratio. The improved calcium magnesium phosphate fertilizer ...

Environment-friendly concrete anti-seepage and anti-cracking agent and preparation method thereof

The invention relates to an environment-friendly concrete anti-seepage and anti-cracking agent and a preparation method thereof, and the environment-friendly concrete anti-seepage and anti-cracking agent comprises the following raw materials in percentage by mass: 10-60% of coal gangue powder, 5-40% of diatomite, 6-55% of zeolite powder, 1-8% of phosphogypsum, 0.5-5% of a hydrophilic agent, 1.5-5% of soda and 5-30% of water glass. The environment-friendly concrete anti-seepage and anti-cracking agent provided by the invention fully utilizes the carrier effect of the hierarchical porous structure of the natural porous mineral substance on water and active components to excite the synergistic gain effect of all the components, so that the mechanical property, volume stability, anti-seepage property, anti-cracking property and durability of the prepared high-ultra-high performance cement-based material are comprehensively improved.

Intelligent robot for material checking

The invention provides an intelligent robot for material checking, and the robot comprises a central control module which is used for receiving robot information from a robot execution module and a material checking module, carrying out the analysis and processing based on the robot information, and determining an execution task for the robot; the robot execution module is used for driving a robot to move based on the execution task; the material checking module is used for carrying out statistical recording on materials by using an RFID ultrahigh frequency identification technology in the moving process of the robot; the work efficiency of the robot is guaranteed by designing the execution task of the robot, meanwhile, in the moving process of the robot, statistics and recording are conducted on the materials through the RFID ultrahigh frequency identification technology, the accuracy of material checking is guaranteed, and the purpose that the headquarters remotely control the robot to ...

COMPACT SIX-DIMENSIONAL FORCE AND TORQUE SENSOR

A compact six-dimensional force and torque sensor comprises: a cylindrical housing (1), a base (2) disposed along an inner wall of the cylindrical housing (1), eight first elastic beams (4) of the same size and structure for connecting the base (2), a central boss (3) disposed in the center of the cylindrical housing (1), four second elastic beams (5) of the same size and structure for connecting the central boss (3) and the first elastic beams (4), wherein the four second elastic beams (5) are arranged in a cross configuration, and the eight first elastic beams (4) and the four second elastic beams (5) are attached with a plurality of strain gauges (7) thereon respectively, each constituting a full-bridge circuit. The sensor is compact in size, has a simple structure and enables self-decoupling of a structure in six directions, which is suitable to be used in combination with current industrial systems. Moreover, the cylindrical housing (1), the base (2), the central boss (3), the first ...

SIMULTANEOUS POSITIONING AND DENSE THREE-DIMENSIONAL RECONSTRUCTION METHOD

A simultaneous positioning and dense three-dimensional reconstruction method, the method being capable of processing quick motion and frequent closing of a loop in a robust manner, and capable of operating at any time in a large-scale scene. The method not only may be used for scanning a high-quality three-dimensional model, but also may meet the demands of a virtual reality and augmented reality. Provided by the method is a key frame-based simultaneous positioning and map construction framework. At first, depth and color information are used simultaneously, and the framework may operate on a central processing unit (CPU) at a high speed on the basis of the positioning of the key frame, and also may operate in a challenging scene in a robust manner. In order to reduce accumulated errors, the method introduces increment bundling adjustment, which may greatly reduce an operation amount, and enable local and global bundling adjustment to be completed in a unified framework. Secondly, provided ...

Highway bridge beam slab precast concrete mixing treatment device

The invention belongs to the technical field of concrete mixing, and particularly relates to a highway bridge beam slab precast concrete mixing treatment device. The highway bridge beam slab precast concrete mixing treatment device comprises a tank body, a driving mechanism, a conveying mechanism and a stirring mechanism, the conveying mechanism comprises a pumping assembly and a conveying channel, the stirring mechanism is provided with a flow guide face used for pushing concrete to be mixed, and a water spraying opening is formed in the flow guide face; the pumping assembly firstly pumps water flow into the containing cavity through the conveying channel and the water spraying opening, and then gas is pumped into the containing cavity through the water spraying opening after water pumping is completed. According to the highway bridge beam slab precast concrete mixing treatment device, the water spraying opening is formed in the flow guide face of the stirring mechanism, water flow and ...

Lower limb fixing device for knee joint replacement surgery

A lower limb fixing device for knee joint replacement surgery comprises a bottom plate, a fixing plate is arranged above the bottom plate in a matched mode, a shear fork mechanism is arranged between the bottom plate and the fixing plate in a matched mode, a seat is arranged on one side of the top face of the fixing plate in a matched mode, two containing grooves are formed in one side of a seat plate of the seat, and the bottom ends of the containing grooves are communicated with the outside. Adjustment can be carried out according to the thickness of the legs of a patient, the legs are well fixed through the binding belts, the legs are prevented from moving in the operation process, in the fixing process, operation is easy, only the inserting blocks need to be inserted into the grooves and inserted into the inserting grooves through components in the limiting mechanisms, the time used in the fixing process is short, efficiency is improved, the operation time is shortened, and the operation ...

Pointer type instrument reading identification method and system based on machine learning

The invention provides a pointer type instrument reading identification method and system based on machine learning, and the method comprises the steps: controlling an inspection robot to collect a target image and point instrument parameters of a pointer type instrument according to a positioning navigation algorithm; determining an instrument area of the pointer instrument in the target image according to a deep learning target detection algorithm; segmenting the instrument area according to a deep learning semantic segmentation algorithm to obtain an instrument pointer mask and an instrument scale mask; establishing a polar coordinate system of the pointer type instrument, mapping the instrument pointer mask into a pointer rectangular image according to the polar coordinate system, and mapping the instrument scale mask into a scale rectangular image; calculating a pointer scale relative value according to the pointer rectangular image and the scale rectangular image; and according to ...

Histamine detection method of enzyme-free electrochemical sensor

The invention relates to the field of histamine detection, in particular to a histamine detection method of an enzyme-free electrochemical sensor, which comprises the following steps: placing a catalytic electrode formed by a one-dimensional CuO nanowire and a catalytic electrode applied with 0.55 V voltage in a detection solution with the pH value of 13, and reflecting the histamine concentration of the detection solution through current change, the one-dimensional CuO nanowire array is generated on the surface of Cu-foam by adopting a liquid phase oxidation method and a heat treatment roasting method, the array is used as an electro-catalysis electrode for detecting the histamine content in the fermented mandarin fish, under the optimal condition, the one-dimensional CuO nanowire array shows the hypersensitive sensing degree, and the one-dimensional CuO nanowire array is used for detecting the histamine content in the fermented mandarin fish, so that the detection sensitivity of the histamine ...

WINDING CORE DIE OF IRON CORE

Disclosed is a winding core die of an iron core, the core die comprising a core die body (1), wherein the core die body (1) comprises at least two die cores separately arranged, with two adjacent die cores being detachably connected, one of split butting faces of two adjacent die cores is provided with a position-limiting protrusion (13), and the other is provided with a position-limiting groove for accommodating the position-limiting protrusion (13). By means of providing the position-limiting protrusion (13) and position-limiting groove, corresponding to each other, on adjacent die cores, such that when a winding core die is assembled, two adjacent die cores can realize an accurate butting in the length direction of the core die body, by means of the assembly of the position-limiting protrusion (13) and the position-limiting groove, thereby directly mounting a fastener to realize positioning of two adjacent die cores, and avoiding a condition that an additional position-limiting structure ...

Automatic car electrical control device that receive and releases of traffic awl

... 一种交通锥自动收放车电气控制装置，可编程控制器的信号输入端输入指令信号通过收放架继电器KA23控制收放架电磁阀YV10Z电磁阀通断选择收放架左侧或右侧工作，收放架继电器KA21和KA22的通断控制收放架左或右液压马达，收放架继电器KA8和收放架继电器KA33分别控制左侧收放架伸缩，收放架继电器KA12和KA34控制右收放架伸缩,机械手继电器KA7控制机械手电磁阀YV4工作状态区分左右机械手液压缸动作，机械手继电器KA5和KA6通过机械手电磁阀YV3控制机械手液压缸，翻转臂继电器KA11控制翻转臂电磁阀YV6工作状态区分左右机械手液压缸。 ...

Gravity satellite groundwater reserve downscaling method and device and computer equipment

The invention relates to a downscaling method and device for underground water reserves of a gravity satellite and computer equipment. The method comprises the following steps: acquiring environment data of a target area; inputting the environment data into a preset random forest model for downscaling of land water reserves to obtain first land water reserves; the scale of the environmental data is consistent with the scale of the first land water reserves; and according to the first land water reserves and other water reserves, determining the groundwater reserves of the target area. By adopting the method, the downscaling processing of the groundwater reserves is realized by using the random forest model, the application range is wide, the method can be applied to the global downscaling work, the problem of monitoring the groundwater reserves in a small range in a region lacking data is solved, and a technical support is provided for water resource management in the region lacking data ...

New strain breeding method for introducing Guizhou black goat maternal line into South African Kara Ha goat consanguinity and application of new strain breeding method

The invention discloses a method for introducing a Guizhou black goat maternal line into a South African Kara ha goat consanguinity breeding new strain and application. The method comprises the following steps: (1) establishing a purebred Guizhou black goat high-reproduction group of three families; (2) establishing three blood line purebred South African Kara ha goat high-reproduction groups; (3) establishing a breeding group of the hybrid F1-generation Cargo black goats; (4) establishing a breeding group of the hybridized F2-generation Cargo black goats; (5) establishing a breeding group of hybridized F3-generation Cargo black goats; and (6) establishing a high-reproductive-performance specialized new strain of the hybridized F4-generation Cargo-Guizhou black goats. The bred new strain has the characteristics that the characteristics of black and shiny coat hair of the whole body of the Guizhou black goat, strong stress resistance, strong disease resistance, strong climbing ability and ...

Lactobacillus plantarum R6-3 from Sailian yoghurt and application of lactobacillus plantarum R6-3

The invention discloses lactobacillus plantarum R6-3 from a Sailian yoghurt source and an application of the lactobacillus plantarum R6-3. The lactobacillus plantarum R6-3 disclosed by the invention is separated from the traditional fermented food, namely selinum yoghurt in Baicheng county in Aksu region in Xinjiang, has good tolerance and antibacterial activity of artificial gastrointestinal fluid and adhesiveness to Caco-2 cells, and has relatively good in-vitro oxidation resistance; a D-galactose induced oxidative injury mouse is taken as a model, the lactobacillus plantarum R6-3 can regulate the intestinal flora of the mouse, so that the SCFAs level in the intestinal tract of the mouse is increased, the SCFAs enter the liver to activate an Nrf-2 signal channel, and then oxidative stress is relieved; a CUMS-induced depression mouse is used as a model, and the lactobacillus plantarum R6-3 can improve the SCFAs content in the intestinal tract, improve the body immunity and oxidative stress ...

MEDICAL APPLICATION OF PYRIMIDINE SULFONAMIDES DERIVATIVES

The invention provides a compound conforming to general formula (I) and the application of isomers or pharmacologically acceptable salts thereof in the preparation of a pharmaceutical composition for treating or preventing high altitude sickness. The altitude sickness is selected from acute and chronic altitude sicknesses occurred in an altitude environment with an altitude of 2,000m or above.

End-to-end speech recognition method and device in vertical domain

The invention provides a vertical domain end-to-end speech recognition method and device, and relates to the technical field of intelligent speech, and the method comprises the following steps: receiving a to-be-recognized speech signal, and extracting the acoustic features of the to-be-recognized speech signal; inputting the acoustic features into a trained end-to-end speech recognition model to obtain a recognition result; extracting the advanced acoustic representation of the voice signal through an encoder, and fusing the advanced acoustic representation with the context sensing matrix to obtain a context acoustic representation; mapping the context phrases into word embedding representations with fixed dimensions through a context encoder; and extracting a final word embedding representation of the text corresponding to the audio through an encoder in combination with a decoder, fusing the final word embedding representation with the context acoustic representation through an attention ...

Tunnel feeding and discharging type ventilation, purification and smoke discharging integrated system and operation method

The invention discloses a tunnel air supply and exhaust type ventilation, purification and smoke exhaust integrated system and an operation method. The system is intensively composed of a tunnel air supply channel, a tunnel air exhaust and longitudinal smoke exhaust channel, a tunnel purification air exhaust channel and a tunnel key smoke exhaust channel. The operation method comprises four modes of tunnel feeding and discharging type ventilation, tunnel purification and ventilation, key smoke exhaust of the shield tunnel and longitudinal smoke exhaust of the open-cut tunnel. According to the invention, only one set of device is used for realizing organic combination of four functions of tunnel feeding and discharging type ventilation, tunnel purification and ventilation, key smoke exhaust of the shield tunnel and longitudinal smoke exhaust of the open-cut tunnel, and compared with a plurality of systems of single feeding and discharging type ventilation, single air purification, single ...

Multi-source fusion positioning and augmented display calibration method of airborne augmented reality equipment

The invention discloses a multi-source fusion positioning and augmented display calibration method for airborne augmented reality equipment, mainly comprising an active infrared mark point module, an inertial navigation sensor module and an infrared image sensor module which are mounted on head-mounted augmented reality display equipment, a binocular infrared visual positioning sensor mounted on an aircraft seat, and a multi-source fusion positioning and augmented display calibration module mounted on an aircraft seat. A passive infrared target image module, a display control processing computer and a matched positioning registration and display calibration and real-time pose fusion positioning work flow are completed, wherein the passive infrared target image module, the display control processing computer and the matched positioning registration and display calibration work flow are installed in an aircraft cockpit. According to the invention, multi-source fusion positioning and augmented ...

Continuous production process of hydrogenated bisphenol A

The invention discloses a continuous production process of hydrogenated bisphenol A. The continuous production process comprises the following steps: 1) a bisphenol A continuous blending system: continuously blanking bisphenol A through the bottom of a stock bin (2), continuously weighing the bisphenol A through a blanking weighing system (3), feeding the bisphenol A to a blending tank (4), mixing the bisphenol A with a circulating solvent in the blending tank to prepare a reaction solution with required concentration, and feeding the reaction solution to a feeding buffer tank (6) through a raw material conveying pump (5); 2) a reaction circulation system: pressurizing the reaction liquid obtained in the step 1) through a reaction feed pump (7), mixing the pressurized reaction liquid with recycle hydrogen metered by a recycle hydrogen flowmeter (16), carrying out heat exchange, feeding the mixture into a fixed bed hydrogenation reactor (11), and carrying out a hydrogenation reaction under ...

HIGH-PRECISION ETCHING METHOD

An etching method. The method comprises: using a modifying agent to form, at a selected region of a surface of a semiconductor material layer, a modified layer with a single or multiple atomic layer thickness (S310); and removing the modified layer (S320). The method realizes precise control of an etching thickness in a semiconductor processing process while increasing an etching rate.

MEDICAL USE OF PROSTACYCLIN RECEPTOR AGONIST

Disclosed are the use of a compound as shown in general formula I, and an isomer, or pharmaceutically acceptable salt thereof in the preparation of a pharmaceutical composition for treating and/or preventing altitude sickness. The altitude sickness is selected from acute altitude sickness or chronic altitude sickness caused by a high altitude environment of at least 2,000 m above sea level.

Particulate matter transmembrane dissolution visualization device and use method

The invention discloses a particulate matter transmembrane dissolution visualization device and a use method. The device comprises a receptor pool, an artificial membrane, a mucus simulation layer, a donor pool, a light-transmitting sealing cover, a heating sleeve, a simulated body fluid inlet pipe, a simulated body fluid outlet pipe, a flow controller, a microscope and a light source. The use method comprises the following steps: preparing the artificial membrane, the mucus simulation layer and the simulated body fluid, setting simulation temperature and flow velocity, applying particulate matters, performing dissolution experiment and quantification, and recording with a microscope. The device is simple in structure and convenient to operate, in-vitro dynamic dissolution and permeation of pollutants in different tissues of a human body can be effectively simulated, and meanwhile in-situ observation and real-time sampling are achieved.

Edible mushroom sterilization device

The invention relates to the field of food processing devices, in particular to an edible mushroom sterilization device which comprises a box body, and a containing cavity is formed in the box body; the gas supply system is used for providing high-temperature steam; the supporting frame is arranged in the containing cavity, and a plurality of layers of containing frames are arranged on the supporting frame; the main air supply pipe is arranged on the supporting frame, one end of the main air supply pipe is provided with a main connector, and the other end of the main air supply pipe is provided with an auxiliary connector; the auxiliary air supply pipes are arranged on the supporting frame and communicate with the main air supply pipe, the multiple sets of auxiliary air supply pipes are arranged, and each set of auxiliary air supply pipes is arranged on the corresponding layer of placing frame and can supply air to the edible mushroom culture media on the corresponding layer of placing ...

Fresh food housekeeping robot for household logistics

The invention relates to the technical field of robots, in particular to a household logistics fresh food housekeeper robot which comprises a machine body, storage boxes are fixedly connected to the middles of the outer walls of the two sides of the machine body, cover plates are arranged on the upper surfaces of the storage boxes, partition plates are fixedly connected to the inner walls of the storage boxes, and a plurality of mounting cavities are formed in the storage boxes; and semiconductor chilling plates are arranged in the mounting cavities. According to the fresh food housekeeper robot for household logistics, the partition plates are arranged in the storage box, so that different types of food can be stored at the same time, and through the infrared sensor arranged on the lower portion of the inner wall of the storage box, when it is detected that fresh food in the storage box reaches the bottom, a signal is transmitted to the signal receiving and transmitting module; the signal ...

Suspension type operation platform

The invention discloses a suspension type operating platform which comprises an H-shaped steel suspension structure, a main hanging basket, an auxiliary hanging basket and a supporting turning plate, an n-shaped main frame is arranged on the outer side of the H-shaped steel suspension structure, and the main hanging basket and the auxiliary hanging basket are arranged at the bottom end of the n-shaped main frame; the main hanging basket body and the auxiliary hanging basket body each comprise a hanging basket vertical high frame, a hanging basket transverse wide frame and a hanging basket transverse long frame, a turning plate frame is arranged on the outer side of the main hanging basket body, a turning plate rotating shaft is arranged between the turning plate frame and the hanging basket transverse long frame located at the lowest end in the main hanging basket body, and a supporting turning plate is arranged in the turning plate frame. The turning plate rotating shaft enables the turning ...

User right life cycle management method and device

The invention discloses a user right life cycle management method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of obtaining input parameters according to a user right state change instruction, wherein the input parameters comprise a current state and a target behavior of a right item; obtaining a target state of the right item according to the current state of the right item and the target behavior; determining a to-be-executed state change process according to the current state and the target state of the right item; and changing the current state of the rights and interests item into the target state by executing the state change process so as to manage the rights and interests life cycle of the user. According to the implementation mode, the code development logic is simplified, the maintainability and expansibility of the codes are improved, the development efficiency is improved, the situation that necessary processes ...

METHOD AND DEVICE FOR EDITING PRINTED RECEIPT BASED ON POS TERMINAL

A method and a device for editing a printed receipt based on a POS terminal (103, 104, 105), the method being used for editing the printed receipt by means of a simple method. The application program code of the POS terminal (103, 104, 105) is encapsulated into at least two parts, and one of the parts of the encapsulated application program code of the POS terminal (103, 104, 105) is a code corresponding to format information of a printed receipt of the POS terminal (103, 104, 105), so that the format information of the printed receipt of the POS terminal (103, 104, 105) can be modified separately. Furthermore, because a printed receipt template is acquired according to an acquired printed receipt template identifier, and the printed receipt template is a graphical interface, a user can intuitively edit the printed receipt template on the graphical interface of the printed receipt template. This invention simplifies the process of editing the printed receipt, reducing the requirement on ...

Display panel and display device

The invention relates to the technical field of display, and particularly provides a display panel and a display device.The display panel comprises a substrate, a display layer and a light control layer, the display layer is located on one side of the substrate, and the display layer comprises a first display area and a second display area; the light control layer is located on the side, away from the substrate, of the display layer and comprises a functional area and a non-functional area, the functional area corresponds to the first display area, and the non-functional area corresponds to the second display area; the functional area is flush with the surface of the side, away from the display layer, of the non-functional area. According to the display panel provided by the invention, the influence of large-viewing-angle brightness is solved through the functional area of the light control layer, and the functional area of the light control layer is flush with the surface of one side, ...

High-applicability reflow soldering furnace

The invention discloses a high-applicability reflow soldering furnace which comprises a rack, a lower conveying line body used for horizontally conveying a carrier seat is arranged on the rack, vertical conveying line bodies used for vertically conveying the carrier seat are arranged at the two ends of the lower conveying line body, and an upper conveying line body used for horizontally conveying the carrier seat is arranged between the top ends of the vertical conveying line bodies. The upper conveying line bodies located at the head end and the tail end are provided with stirring assemblies used for stirring the carrying bases to move. The lower conveying line bodies, the vertical conveying line bodies and the upper conveying line bodies are matched with one another to form a loop. The outer side of the vertical conveying line body is further provided with a storage line body used for containing and storing the carrying bases. The PCB conveying line is mainly characterized in that the ...

Botulinum-like polypeptide nano-micelle as well as preparation method and application thereof

The invention belongs to the technical field of cosmetics, and particularly relates to a botulinum-like polypeptide nano-micelle as well as a preparation method and application thereof. The amino acid sequence of the botulinum-like polypeptide is R-Gl-Asn-Arg-Ser-Ph-Met-Gl-Leu-Gl-Met-Gln-Arg-Arg-Ala-NH2, and the amino acid sequence of the botulinum-like polypeptide is as follows: R is a myristoyl group or a palmitoyl group. The botulinum-like polypeptide prepared by the method disclosed by the invention is added into a solution and is self-assembled into the botulinum-like polypeptide nano-micelle. The botulinum-like polypeptide disclosed by the invention has an anti-wrinkle effect, can be self-assembled into nano-micelles in a solution, can be quickly transdermal and dissociated in a physiological salt environment after transdermal penetration, the polypeptide can enter nerve cells to play the anti-wrinkle effect, the biocompatibility is high, the safety is high, and the anti-wrinkle effect ...

Application of genistein in preparation of medicine for preventing or treating leucopenia

The invention discloses an application of genistein in preparation of drugs for preventing or treating leucopenia. The leucopenia is leucopenia caused by drugs, radiation, infection, autoimmunity and other factors and leucopenia caused by chemotherapy. The genistein disclosed by the invention can increase the number of leukocytes and the number of lymphocytes of a leucopenia model rat. The genistein disclosed by the invention is used for treating the leucopenia by stimulating proliferation of bone marrow nucleated cells; the genistein disclosed by the invention is used for treating the leucopenia by stimulating differentiation and maturation of lymphocytes; according to the genistein disclosed by the invention, the activation of leukocytes is promoted by regulating and controlling the contents of IL-1beta, IL-4, IL-6, TNF-alpha and IFN-gamma so as to treat the leucopenia; the genistein disclosed by the invention is used for promoting and maintaining homeostatic balance of a hematopoietic ...

Motor temperature detection circuit

The invention relates to a motor temperature detection circuit. The method comprises the steps that temperature signals of a motor are collected through a signal collection module, interference signals may be collected, collected detection signals comprise the temperature signals and the interference signals, the detection signals are transmitted to a signal processing circuit, strong isolation processing is carried out on the interference signals and the temperature signals through the signal processing circuit, and the interference signals and the temperature signals are output. The corresponding operational amplifier output voltage is determined only according to the temperature signal, the operational amplifier output voltage indicating the temperature of the motor is transmitted to the central processing unit, the central processing unit determines the corresponding temperature of the motor according to the operational amplifier output voltage, and the reference source circuit is used ...

METHOD AND SYSTEM FOR TESTING BATTERY PIECES OF SHINGLED ASSEMBLY

The present invention relates to a method and a system for testing battery pieces of a shingled assembly. The battery pieces have a front surface and a back surface opposite the front surface, a plurality of front surface busbars extending parallel to each other being formed on the front surface, and a plurality of back surface busbars extending parallel to each other being formed on the back surface. The method according to the present invention comprises the following steps: providing an adjustable upper test device comprising an adjustable number of upper probe rows; providing an adjustable lower test device comprising an adjustable number of lower probe rows; and electrically connecting the adjustable upper test device and the adjustable lower test device to test equipment for testing, selecting, according to the tested battery pieces of the shingled assembly, the number of probe rows of the adjustable upper test device and the number of probe rows of the adjustable lower test device ...

Hoisting device and method for steel structure factory building wall purline structure

The invention discloses a hoisting device and method for a steel structure factory building wall purline structure. The hoisting device comprises a movable base (1), a hoisting driving machine (2), a rod piece hoop (3), a fixed pulley (4) and a sling (5). The movable base is movably arranged on an installed crane beam (6), the hoisting driving machine (2) is fixedly installed on the movable base and moves synchronously with the movable base, the hoisting driving machine is located above one side of a construction face of a purline (8), and one end of the sling is connected with the output end of the hoisting driving machine. The rod piece hoop is fixed to an installed transverse member (7) in a hooping mode, the fixed pulley is installed on the transverse member through the rod piece hoop, the fixed pulley is located above the construction face of the purline, and the other end of the sling is connected with the purline after winding around the fixed pulley. The problem that in the prior ...

Insect-resistant protein as well as preparation method and application thereof

The invention discloses a preparation method and application of a novel insect-resistant protein, and belongs to the field of genetic engineering. The invention provides a new insect-resistant protein and a coding gene thereof, the new protein is an insect-resistant mutant protein, and the insect-resistant mutant protein is a protein obtained by mutating Cry1Ie4 protein at the 174th site, the 209th site and the 260th site. The application refers to the application of the coding gene in cultivation of insect-resistant transgenic maize plants, the application in preparation of insect-resistant mutant proteins and the application of the insect-resistant mutant proteins in preparation of insecticides. According to the invention, the Cry1Ie4 protein is artificially modified, so that the activity of the Cry1Ie4 protein is improved.

Device and method for measuring fatigue crack growth rate of metal sheet

The invention discloses a device and a method for measuring the fatigue crack propagation rate of a metal sheet, and belongs to the field of metal material fatigue and damage tolerance test, the device comprises a metal sheet fatigue crack propagation test piece, one end of the metal sheet fatigue crack propagation test piece is a clamping end, the other end is a loading end, and the loading end is used for loading the metal sheet fatigue crack propagation test piece; a prefabricated crack is arranged on the surface of the test piece; the first COD gauge clamping knife edge and the second COD gauge clamping knife edge are fixedly arranged on the surface of the test piece and located on the two sides of the precrack, and the first COD gauge clamping knife edge and the second COD gauge clamping knife edge are each provided with a knife edge protruding part; the COD gauge comprises a first clamping head and a second clamping head, the first clamping head and the second clamping head are respectively ...

Fault remote session guidance diagnosis system

The invention discloses a fault remote session guidance diagnosis system, and the system comprises a fault field control unit which is used for collecting fault point data, carrying out the preprocessing of the collected fault point data, and transmitting a request guidance instruction to a remote guidance unit; the intelligent cloud-of-things platform is used for storing historical data and fault manual data, analyzing current fault point data, obtaining an analysis report and providing technical support for guidance of a later fault guidance session room; and the remote guidance unit is used for receiving the request guidance instruction, constructing a fault guidance session room according to the request guidance instruction and the analysis report, providing corresponding simulation picture data for the fault guidance session room based on the analysis report, and performing fault guidance for operation and maintenance personnel by an expert in the fault guidance session room. Therefore ...

Method and system for predicting wind power of newly-built wind power plant based on gradient evolution

The invention provides a method and a system for predicting wind power of a newly-built wind power plant based on gradient evolution, and relates to the technical field of wind power prediction. The wind power related data is processed, then the space-time diagram convolution generative adversarial network of the adjacent wind power plant and the target wind power plant is constructed, the time and space relation of the adjacent wind power plant and the target wind power plant in a certain range is effectively utilized, a similar diagram, a correlation diagram and a distance diagram are constructed, space-time characteristics are fully mined, data is generated, and data expansion is achieved. The method can improve the quality of generated samples, employs an evolutionary gating cycle unit network, achieves the complementary advantages of different training modes based on a gradient evolutionary calculation framework, exchanges and fuses gradient information, solves the problems of gradient ...

Communication receiving device and system

The invention discloses a communication receiving device and system, and relates to the field of communication, the communication receiving device comprises a signal receiving module, a single photon detector, a filter and a processing module, and the cut-off frequency of the filter is in direct proportion to the communication rate of the communication receiving device. The cut-off frequency of the filter changes along with the change of the communication rate, meanwhile, the filter shapes a pulse sequence output by the single-photon detector into a level signal, the processing module can utilize the level signal to quickly, simply and conveniently recover the communication data, the algorithm difficulty of data recovery is greatly simplified, and the data recovery efficiency is improved. Therefore, on the premise that the communication rate is variable, the problem of data recovery is solved; according to the communication receiving device, the flexibility of the communication receiving ...

Waste plastic combustion pretreatment device and method

The invention discloses a waste plastic combustion pretreatment device and method. The pretreatment device comprises a drying system, a smashing system, a pressurization system, an air supply system, a mixing system and an injection system. And the drying system is used for drying the waste plastics. And the crushing system is connected with the drying system and is used for crushing the waste plastics. The pressurization system is connected with the smashing system and used for conducting pressurization treatment on the waste plastics. The gas supply system is used for providing gas. The mixing system is connected with the pressurization system and the gas supply system at the same time and used for mixing the waste plastics with gas provided by the gas supply system. And the injection system is connected with the mixing system and is used for injecting the mixed waste plastics and the gas provided by the gas supply system together. Compared with the prior art, the waste plastic combustion ...

Method for separating ethyl acetate-ethanol-cyclohexane mixture through extractive distillation heat integration by changing pressure

The invention relates to a device of a method for separating an ethyl acetate-ethanol-cyclohexane mixture through pressure change extractive distillation heat integration. According to the method, dimethyl sulfoxide is used as an extracting agent, an ethyl acetate-ethanol-cyclohexane mixture enters a rectifying tower 1 (T1) to be subjected to pressure-changed extractive distillation heat integration separation, and the purities of separated ethyl acetate, ethanol and cyclohexane all reach 99.9% or above; according to the present invention, the large latent heat of the tower top gas-phase azeotrope of the rectifying tower 3 (T3) is utilized to partially heat the tower kettle liquid of the rectifying tower 1 (T1) so as to vaporize the tower kettle liquid, and the tower top gas-phase azeotrope of the rectifying tower 3 (T3) is completely condensed, such that the heat integration is achieved, the method has advantages of low energy consumption, simple process, high purity of the separated ethyl ...

Low-shrinkage super-anti-freezing coarse aggregate ultra-high performance concrete pavement layer and preparation method thereof

The invention relates to a low-shrinkage super-anti-freezing coarse aggregate ultra-high performance concrete pavement layer and a preparation method thereof, and the pavement layer is prepared from the following raw materials in parts by mass: 800-1400 parts of a cementing material, 700-1300 parts of sand, 300-1000 parts of coarse aggregate, 20-50 parts of a water reducing agent, 80-350 parts of steel fiber, 150-200 parts of water, 30-60 parts of a phase change material and 10-50 parts of a chloride ion curing agent; the coarse aggregate comprises gravel coarse aggregate and porous coarse aggregate. According to the prepared coarse aggregate ultra-high performance concrete pavement layer, the advantages of an aggregate throwing and filling process are fully played, and meanwhile, the synergistic salt freezing resistance function of a multi-component functional material is combined, so that the pavement layer has excellent service performance and long service life in pavement engineering ...

Knowledge signature-based block chain transaction identity privacy protection and traceable method and system

The invention discloses a block chain transaction identity privacy protection and traceable method and system based on knowledge signature. The method comprises the steps of system setting, identity registration, transaction construction, transaction verification and transaction tracking. According to the method, the knowledge signature is applied to the block chain system, so that strong anonymity and traceability of the user identity are realized; and the transactions can be supervised by supervising the encrypted ciphertext and the tracking tag. Besides, a secret key sharing technology is introduced on the basis of supervision, so that multi-party supervision is realized, and the problem of power abuse caused by a single supervision mechanism is avoided. According to the method, conditional identity anonymity is provided for the block chain application user, and the problem of contradiction between privacy protection and traceability of the block chain user identity is solved.

Static collection box and collection method for collecting greenhouse gas on water surface

The invention belongs to the field of ecological environment protection, and relates to a static collection box and a collection method for collecting greenhouse gas on a water surface. The invention provides a static collection box and a collection method for collecting greenhouse gas on a water surface. A portable static box comprises a box body, a temperature probe, a gas balance bag, a gas sampling nozzle 4, an annular foam plate and a miniature fan. And after the sampling is completed, transferring the sample to a gas chromatograph for analysis, and calculating the concentration of the sample by comparing with a marked line. The device has the following beneficial effects: the sampling reliability is improved, the pressure in the box body is ensured to be equal to that of the atmosphere in the sampling process, the temperature of water and gas is recorded by adopting the temperature tester, and the device has an important value for researching the influence of temperature difference ...

Fixing device for machining titanium alloy plate with large length-width ratio and using method of fixing device

The invention discloses a fixing device for large-length-width-ratio titanium alloy plate machining and a using method thereof.The fixing device comprises a mounting plate, two pairs of bolts penetrate through the mounting plate, a positioning groove is fixedly connected to the top of the mounting plate, an adjusting bin is arranged in the positioning groove, and a first motor is fixedly connected to the inner wall of the adjusting bin; a first adjusting block is arranged on one side of the first motor, a threaded hole is formed in the first adjusting block, a first lead screw is in threaded connection with the interior of the threaded hole, one end of the first lead screw is fixedly connected to an output shaft of the first motor, and the other end of the first lead screw is movably connected to the inner wall of the adjusting bin; a connecting block is fixedly connected to the top of the first adjusting block, and a first movable opening matched with the connecting block is formed in ...

Steel plate material sheet transportation and storage device

The invention provides a steel plate sheet transporting and storing device which comprises a horizontally-arranged bottom plate and first wheels arranged below the four corners of the bottom plate, stand columns are vertically arranged above the four corners of the bottom plate correspondingly, two parallel upper rails are arranged at the top ends of the stand columns, and an upper moving trolley is arranged in the two upper rails; an upper hoisting structure is arranged in the upper moving trolley; the two ends of the bottom plate are provided with a lower moving trolley and a deviation structure used for movement deflection of the bottom plate respectively, a lower hoisting structure is arranged in the lower moving trolley, the lower moving trolley is arranged on two parallel lower rails, one ends of the two lower rails are hinged to stand columns at one end of the bottom plate respectively, and second wheels are arranged at the bottom ends of the other ends of the two lower rails. According ...

COMMUNICATION METHOD AND SYSTEM, RESOURCE POOL MANAGEMENT SYSTEM, SWITCH AND CONTROL DEVICE

Provided are a communication method and system for an SDN, a resource pool management system, a switch and a control device. The communication method comprises: acquiring the network properties of virtual machines configured by a resource pool management system according to an operation of a user on a network resource pool; during the first communication between a first virtual machine and a second virtual machine, translating tenant network topology information obtained from the network properties into a flow table; and issuing the flow table to a switch corresponding to the virtual machines, so that when the switch judges that communication cannot be conducted between the first virtual machine and the second virtual machine in accordance with the flow table, during the first communication and the subsequent communication, directly discarding a message between the first virtual machine and the second virtual machine. In the communication method, a controller can be prevented from broadcasting ...

Strontium-zirconium-titanium-lanthanum quaternary composite microalloyed 740-780MPa ultrahigh-strength high-plasticity corrosion-resistant aluminum alloy and preparation method thereof

The invention discloses a strontium-zirconium-titanium-lanthanum quaternary composite microalloyed 740-780MPa ultrahigh-strength high-plasticity corrosion-resistant aluminum alloy and a preparation method thereof. The strontium-zirconium-titanium-lanthanum quaternary composite microalloyed 740-780MPa ultrahigh-strength high-plasticity corrosion-resistant aluminum alloy is characterized by mainly comprising aluminum (Al), zinc (Zn), magnesium (Mg), copper (Cu), strontium (Sr), zirconium (Zr), titanium (Ti) and lanthanum (La). The preparation method of the alloy sequentially comprises the following steps: (1) casting; (2) homogenization treatment (450 DEG C * 24 h heat preservation and furnace cooling); (3) hot extrusion (the temperature is 400 DEG C, and the extrusion ratio is 10: 1); (4) solution treatment; and (5) aging treatment (T6I4 (121 DEG C * 4-8 h (room temperature water cooling) + 65 DEG C * 120 h) or T6 (121 DEG C * 24 h). The maximum strength of the alloy can reach 782.816 MPa ...

Artificial floating island for coral bionic environment restoration

The invention discloses an artificial floating island for coral bionic environment restoration, which comprises a floating island main body made of a foaming buoyancy material, and the whole floating island main body is of a dish-shaped structure of which the upper part and the lower part are convex outwards; an axial through hole communicated with the seabed is formed in the center of the floating island body, the bottom of the through hole is connected with at least two anchor cables, and the bottom ends of the anchor cables are anchored to the seabed. The slopes on the two sides of the upper convex part of the floating island main body are coral growth platforms, and the slopes on the two sides of the lower convex part of the floating island main body are wave power generation structure mounting platforms; the middle of the top face of the upper protruding part of the floating island body is of a plane structure, the plane structure is located below the sea surface in the rising tide ...

Message forwarding method and device, electronic equipment and storage medium

The embodiment of the invention provides a message forwarding method and device, electronic equipment and a storage medium, and relates to the technical field of communication, and the method comprises the steps: determining message information of a received message, taking the message information as an index, determining an effective indication bit corresponding to the message information from a predefined access control list, and forwarding the received message based on the effective indication bit. And determining an invalid path corresponding to the valid indication bit from the path table, deleting the invalid path from the path table to obtain a valid path table, and forwarding the received message based on the valid path table. The effective path table is obtained after the path table is effectively filtered, and the current message is forwarded based on the effective path table, so that the message is prevented from being forwarded through an invalid path, the message forwarding ...

METHOD AND SYSTEM FOR ACQUIRING RELATIONSHIP BETWEEN WINDING STATE AND LEAKAGE REACTANCE PARAMETER OF TRANSFORMER

A method and system for acquiring a relationship between a winding state and a leakage reactance parameter of a transformer, which are based on simulation software. The method comprises: establishing a simulation transformer according to the size of a real transformer; setting parameters of the simulation transformer, and setting a simulation transformer winding to be in a preset winding state; acquiring a preset number of leakage reactance parameter values of the simulation transformer in the winding state; and counting all the leakage reactance parameter values of the simulation transformer in the winding state, and obtaining a value range of the leakage reactance parameter of the simulation transformer when the simulation transformer winding is in the state, wherein the value range is used as a value range of the leakage reactance parameter of the real transformer when the real transformer winding is in the state.

METHOD AND APPARATUS FOR DETERMINING DISTRIBUTED POWER SUPPLY ACCESS CAPACITY, AND STORAGE MEDIUM

A method and an apparatus for determining the distributed power supply capacity to be accessed by a feed line of a power distribution network, and a storage medium, the method comprising: determining feed line loss on the basis of load information of power distribution network feed line access nodes and circuit parameters; on the basis of the feed line loss, determining three-phase voltage change values of the feed line circuit; using a single phase having the greatest voltage change amongst the voltage change values, determining a maximum active power for distributed power supply access under voltage constraints; comparing the current of the feed line corresponding to the maximum active power with a circuit current limit, and determining the distributed power supply capacity to be accessed by the feed line; the apparatus comprises a feed line information collection unit, a voltage drop unit, a quantitative calculation unit, and a results analysis unit. The present method can be used for ...

PARALLEL VIDEO IMAGE CONTRAST ENHANCING METHOD AND APPARATUS

The present invention relates to a parallel video image contrast enhancing apparatus, comprising a scalar processing unit, a local memory, a memory access control unit, a buffer, a parallel arithmetic logic unit, a state machine and a data interleaving unit. The present invention further relates to a parallel video image contrast enhancing method, comprising: step 1, acquiring a greyscale histogram of an image to be processed, and obtaining a greyscale mapping lookup table by means of calculation; and step 2, based on the greyscale mapping lookup table, performing greyscale transformation on the image to be processed in a parallel table lookup manner so as to complete contrast enhancement. The present invention enhances the image contrast, improves the data usage efficiency of same, reduces the data interaction between an operational component and a peripheral memory, and lowers the memory access bandwidth pressure.

Control method and device of electronic expansion valve and vehicle

The embodiment of the invention relates to the technical field of automobiles, in particular to an electronic expansion valve control method and device and a vehicle, and the control method comprises the steps that in the vehicle running process, the air blower gear change state and the refrigeration mode change state of a heat pump air conditioner are obtained; when the air blower gear change state is a steep drop state and/or the refrigeration mode of the heat pump air conditioner is switched from a passenger compartment single refrigeration mode to a passenger compartment/battery dual refrigeration mode, correction parameters used for correcting the opening degree of a first electronic expansion valve are determined; a first current parameter used for determining the current opening degree of the first electronic expansion valve is obtained, the parameter is corrected according to the first current parameter, and an actual parameter is determined; and the first target opening degree ...

SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREFOR, AND ELECTRONIC DEVICE COMPRISING DEVICE

A semiconductor device, a fabrication method therefor and an electronic device comprising the semiconductor device. The semiconductor device may comprise: a substrate (1001); an active area that vertically extends on the substrate (1001) and that comprises a first source/drain layer (1005), a channel layer (1007) and a second source/drain layer (1009) that are successively stacked; and a gate stack formed winding around a peripheral sidewall of at least a section of the channel layer (1007). The sidewall of the gate stack that is near a side of the channel layer (1007) is aligned with the peripheral sidewall of the channel layer (1007), and the two thus occupy essentially the same range in the vertical direction, and the section of the gate stack that is near a side of the channel layer (1007) appears as a shape that tapers as said section approaches the channel layer (1007).

Simulated shooting method, system and device based on visible light and storage medium

The embodiment of the invention provides a simulated shooting method, system and device based on visible light and a storage medium. The method comprises the following steps: acquiring a simulated shooting video, acquired by image acquisition equipment, of a light weapon simulated by a visible light emitter; reading a corresponding frame image according to the simulated shooting video; determining a brightness value of each frame image, and determining pixel coordinates of an impact point of a light weapon simulated by the visible light emitter based on the brightness values; and determining the shooting stability of the light weapon simulated by the visible light emitter based on the pixel coordinates of the impact point of the light weapon simulated by the visible light emitter so as to solve the problem of how to realize the stability detection of the light weapon.

Emergency generator tripping coordination control method and system for regional power grid containing high-proportion new energy

The invention discloses an emergency generator tripping coordination control method and system for a regional power grid containing high-proportion new energy, and the method comprises the steps: determining a frequency change amount according to active disturbance through employing a frequency response model built based on equivalent inertia; according to the threshold value of high-frequency generator tripping of the third defense line of the power grid system, determining a disturbance early warning value based on the relationship between the maximum value of the frequency variation and the active disturbance amplitude; when the active disturbance amplitude exceeds the disturbance early warning value, solving the minimum disturbance amplitude which meets the delay limit value and is used for triggering high-frequency generator tripping of the third defense line; and comparing the active disturbance amplitude, the disturbance early warning value and the minimum disturbance amplitude so ...

CROSS TERMINAL DEVICE PLATFORM DATA PROCESSING METHOD AND APPARATUS

The present invention relates to the field of data processing technology and, more particularly, to a cross terminal device platform data processing method and apparatus for solving the technical problem existing in the prior art that a developed POS application cannot be used across terminal devices. The method comprises: obtaining underlying application data of a POS terminal; converting the format of the underlying application data according to the format of upper application data and the format of the underlying application data so that the format of the converted underlying application data is the same as that of the upper application data; and storing the converted underlying application data into a data space to be used by an upper-level application when needed. The method converts the underlying data format specific to the terminal into the upper application data format as appointed, the upper-level application only needs to obtain the data from the data space as desired, and because ...

Energy-gathering vibration-damping blasting charging structure

The utility model discloses an energy-gathering vibration-damping blasting charging structure which comprises a blast hole, an energy-gathering cone is arranged at the bottom of the blast hole, explosive is arranged at the top of the energy-gathering cone, an air or water column section is arranged at the top of the explosive, a cross arm is arranged at the top of the blast hole, and a hemp rope is fixedly connected to the axis of the cross arm. Through cooperative use of the energy-gathering cone, the explosive, the air or water column section, the plastic bag, the rock powder, the hemp rope, the cross arm, the nonel detonator and the blast hole, common coupling charging can be optimized into axial non-coupling charging, the blasting energy acting process is adjusted through air or water, over-crushing of blasting energy to rocks around the blast hole is effectively reduced, and the blasting efficiency is improved. And meanwhile, the energy gathering cone at the bottom of the blast hole ...

Clean room and related controlled environment on-line monitoring system and method

The embodiment of the invention provides an online monitoring system and method for a clean room and a related controlled environment, and the system comprises a field collection module which is used for obtaining the monitoring data information corresponding to each measurement point of the clean room and the related controlled environment through a multi-point sensor; the power supply module is used for supplying power to the sensor of the field acquisition module; the data acquisition and analysis module is used for receiving the monitoring data information transmitted by each sensor, analyzing and processing the monitoring data information and then transmitting the monitoring data information to the server; judging whether the monitoring data information exceeds a safety threshold value or not according to the preset safety threshold value of each detection parameter; the server is used for storing the analyzed and processed monitoring data information; the display module is used for ...

Gel card automatic detection and loading equipment

The invention discloses automatic gel card detection and loading equipment, and belongs to the technical field of medical equipment. According to the automatic detection and loading equipment for the gel card, the gel card can be accurately loaded into the comb plate. The device comprises a mechanical arm rotating column, a mechanical arm, a workbench, a supporting frame below the workbench, a full box gel card conveying belt and an empty box conveying belt, and further comprises an air pressure conveying mechanism, an air cylinder mechanism, a gel card box conveying mechanism and a gel card boxing mechanism connected with the mechanical arm. The air pressure conveying mechanism is composed of an identification card air pressure conveying part and an identification card poor quality discharging part, and all parts of the identification card air pressure conveying part correspond to all parts of the identification card poor quality discharging part. A comb plate operation mechanism is fixedly ...

OUTDOOR UNIT FAN GUARD FOR PARKING AIR-CONDITIONER, AND PARKING AIR-CONDITIONER

Disclosed are an outdoor unit fan guard for a parking air-conditioner, and a parking air-conditioner. The outdoor unit fan guard comprises a fan guard main body (1), wherein an air outlet (4) is formed in the fan guard main body (1); the middle part of the fan guard main body (1) extends upwards to form a cylindrical enclosure wall (2); the air outlet (4) is formed at a top end of the cylindrical enclosure wall (2); a grille (3) is arranged at the air outlet (4); and a protection member (5) is arranged above the grille (3), and the protection member (5) is configured in such a manner that the projection thereof in a vertical direction at least can cover the grille (3). The outdoor unit fan guard can effectively prevent foreign matter from intruding into an outdoor unit.

SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR, AND ELECTRONIC DEVICE COMPRISING SAID SEMICONDUCTOR DEVICE

Disclosed are a semiconductor device and a manufacturing method therefor, and an electronic device comprising the semiconductor device. The semiconductor device comprises: a substrate; and a first device and a second device formed on the substrate, the first device and the second device each comprising: a first source/drain layer, a channel layer, and a second source/drain layer sequentially stacked on the substrate from bottom to top, and a gate stack formed around at least a part of the periphery of the channel layer; at least a part of the respective sidewalls of the channel layers of the first device and the second device extends along different crystal planes or crystal plane families.

Lung cancer pathology identification and classification method based on MobileNetV2 network

The invention discloses a lung cancer pathology identification and classification method based on a MobileNetV2 network, and the method achieves the analysis of a CT image of a lung tumor through the learning and training of a MobileNetV2 network model, verifies the feasibility of an artificial neural network for the auxiliary diagnosis of the CT global features of the lung cancer tumor, provides a reference information basis for the analysis and diagnosis of a doctor for a disease, and improves the diagnosis accuracy of the lung cancer. Compared with a traditional neural network, the method has the advantages of being short in operation time and high in accuracy, doctors can be more effectively helped to analyze different lung cancer pathology CT images, the judgment accuracy of the doctors is greatly improved, and the misdiagnosis rate is reduced.

Strontium-zirconium-titanium-yttrium-lanthanum five-element composite microalloyed 800MPa strength grade aluminum alloy and preparation method thereof

The invention discloses a strontium-zirconium-titanium-yttrium-lanthanum five-element composite microalloyed 800MPa strength grade aluminum alloy and a preparation method thereof. The strontium-zirconium-titanium-yttrium-lanthanum five-element composite microalloyed 800MPa strength grade aluminum alloy is characterized by mainly comprising aluminum (Al), zinc (Zn), magnesium (Mg), copper (Cu), strontium (Sr), zirconium (Zr), titanium (Ti), yttrium (Y) and lanthanum (La). The preparation method of the alloy sequentially comprises the following steps: (1) casting; (2) homogenization treatment (450 DEG C * 24 h heat preservation and furnace cooling); (3) hot extrusion (the temperature is 400 DEG C, and the extrusion ratio is 10: 1); (4) carrying out solution treatment (450 DEG C * 2h + 460 DEG C * 2h + 470 DEG C * 2h, and water quenching at room temperature); and (5) aging treatment (T6 (121 DEG C * 24h)). The highest strength of the alloy can reach 803.5 MPa, meanwhile, the percentage elongation ...

Switch detection system and method under complex condition based on deep learning

The invention discloses a deep learning-based switch detection system and method under a complex condition, and the method comprises the steps: obtaining an initial image and a historical image through a camera, and carrying out the labeling of the historical image, and obtaining a labeled image; training the anchor-frame-free real-time target detection model by using a historical image to obtain a trained anchor-frame-free real-time target detection model; inputting the initial image into a trained anchor-frame-free real-time target detection model, and outputting to obtain a switch position; intercepting a switch image corresponding to the switch position from the initial image; training the on-off state detection model by using the annotated image to obtain a trained on-off state detection model; inputting the switch image into a switch state detection model, and outputting to obtain a switch state corresponding to the switch position; and finally, the switch state and the switch position ...

Strontium-zirconium-titanium-erbium-cerium quinary composite microalloyed 800MPa-strength-grade high-performance aluminum alloy and preparation method thereof

The invention discloses a strontium-zirconium-titanium-erbium-cerium five-element composite microalloyed 800MPa-strength-grade high-performance aluminum alloy and a preparation method thereof. The strontium-zirconium-titanium-erbium-cerium five-element composite microalloyed 800MPa-strength-grade high-performance aluminum alloy is characterized by mainly comprising aluminum (Al), zinc (Zn), magnesium (Mg), copper (Cu), strontium (Sr), zirconium (Zr), titanium (Ti), erbium (Er) and cerium (Ce). The preparation method of the alloy sequentially comprises the following steps: (1) casting; (2) homogenization treatment (450 DEG C * 24 h heat preservation and furnace cooling); (3) hot extrusion (the temperature is 400 DEG C, and the extrusion ratio is 10: 1); (4) carrying out solution treatment (450 DEG C * 2h + 460 DEG C * 2h + 470 DEG C * 2h, and water quenching at room temperature); and (5) aging treatment (T6 (121 DEG C * 24h)). The alloy grains are very fine, the highest strength can reach ...

Sliding recovery torque control method and device, storage medium and vehicle

The invention provides a sliding recovery torque control method and device, a storage medium and a vehicle. Relates to an internet application technology. The method comprises the following steps: judging whether a vehicle is in a high-dynamic state; if the vehicle is in the high-dynamic state, the sliding recovery torque is increased; and if the high dynamic state is eliminated, the sliding recovery torque is adjusted according to the required torque value. When a vehicle is in a high dynamic state, the sliding recovery torque can be increased, the lifting part of the sliding recovery torque reduces the effect of the sliding recovery torque on tires, and when the value of the sliding waving torque is 0 Nm, the effect of the sliding recovery torque on the tires is cancelled, the lateral force of the tires is increased, and particularly the slip rate of driving wheels is reduced; and the vehicle stability is improved.

Lens barrel and laser particle analyzer comprising same

The invention discloses a lens cone and a laser particle analyzer comprising the same, and belongs to the technical field of optical instruments.The lens cone comprises a laser generator, a spatial filtering unit and a Fourier lens, the laser generator, the spatial filtering unit and the Fourier lens are assembled into a whole and distributed in a sectional mode, and therefore the laser generator, the spatial filtering unit and the Fourier lens are distributed in the sectional mode. And the whole optical path system is assembled, so that the independence of each component can be ensured, and the consistency of the whole optical path system can be ensured. The operability of replacing elements such as lenses and pinholes is effectively guaranteed, the structure is simple, and disassembly is easy. Similarly, due to the integral assembly, the integral structure is low in cost and has better shock resistance and stability, the influence of air convection on the laser output power is also solved ...

Movable surface sealing method

The invention relates to the technical field of environment-friendly dust removal of a bag-type dust collector, and particularly discloses a movable surface sealing method which comprises the following steps: arranging a sliding sealing component at the upper part of a division box, and movably sealing the sliding sealing component in a certain small unit; the sliding sealing part is provided with an upper framework and a lower framework, and a sealed surface can stretch in the small unit in the vertical direction through an elastic material between the upper framework and the lower framework; foldable or telescopic airtight tough materials are arranged at the tail parts of the upper framework and the lower framework; a closed space is formed among the upper framework, the lower framework and the airtight tough material, and the closed space is controlled to extend and retract so as to adapt to small units to be sealed with sealed surfaces of different sizes; in the direction of the sealed ...

Novel roxburgh rose tree irrigation device

The invention discloses a novel roxburgh rose tree irrigation device, and relates to the technical field of agricultural irrigation. The device comprises a main body device, a water pumping device, a moving device, an irrigation device and a drip irrigation device. The novel roxburgh rose tree irrigation device is designed by arranging the main body device, is used for watering and irrigating a roxburgh rose tree forest on a large scale, is convenient to use, simple to operate and high in cost performance, can supply water in multiple water supply modes by arranging the water pumping device, and is high in adaptability and high in practicability. A certain amount of water can be stored for pesticide adding, one device can be supplied to multiple roxburgh rose tree planting fields by arranging the moving device, economic resources are saved, multiple irrigation pipelines can be used for irrigation at the same time by arranging the irrigation device, pipeline pressure control is conducted ...