冰箱贴

驾驶舱总成

汽车后排扶手箱（移动魔方）

顶棚

前轮外饰件

Bar code identification device for placing samples in multiple circles

The utility model discloses a bar code identification device for placing samples in multiple circles, which comprises a sample storage disc unit, a sampling arm unit, a test tube lifting unit and a code identification unit which are all arranged on the same fixed bottom plate, and the sampling arm unit is arranged on the side edge of the sample storage disc unit. A sampling arm in the sampling arm unit is rotationally arranged above the sample storage disc unit; the test tube lifting unit is installed at the bottom of the sample storage disc unit, and the code recognition unit is installed on a sampling arm of the sampling arm unit and faces a sampling needle in the sampling arm unit. The problem that the bar code of the test tube on the inner ring of the storage disc is shielded is solved, the sample processing amount is increased while the automation degree is improved, and the operation process is simplified.

Preparation method of simulated ancient textile mineralized sample

The invention relates to the technical field of silk cultural relic simulation, and discloses a preparation method of a simulated ancient textile mineralization sample, which comprises the following steps: (1) adding a silk fabric into an ethanol water solution for soaking; (2) soaking in an alkaline solution; (3) adding chymotrypsin and an enzyme catalyst into an acidic buffer solution to obtain a solution A; soaking the silk fabric treated in the step (2) in a solution A, and storing the silk fabric in a constant-temperature sterile environment; taking out, and cleaning after enzyme deactivation; (4) aging in a constant-temperature and constant-humidity environment, and spraying water once every a period of time to obtain an aged silk fabric; and (5) soaking the aged silk fabric in an alkaline buffer solution containing saturated metal killing ions for mineralization to obtain a mineralized sample. The method can reduce the mineralization process to the greatest extent, can be used for ...

焊接面罩

肌电生物反馈刺激仪

汽车衣帽架

包装盒（讯飞AI翻译笔）

后排座椅（成人儿童一体化）

SWITCHING POWER SUPPLY AND CONTROL METHOD THEREFOR

A switching power supply (10), comprising: a transformer (T) including a primary coil (Lf) and a secondary coil (Ls), wherein the primary coil inputs an initial voltage (Vin), and the secondary coil outputs a load voltage (Vout); a switch tube set (100) comprising multiple switching transistors (S1~Sn) in parallel connection, wherein the multiple switching transistors in parallel connection are in series connection to the primary coil of the transformer; and a controller (200) for outputting control signals to each switching transistor of the switch tube set. When loads increase, the controller controls to increase the number of the switching transistors participating in operations of the switching power supply, and when loads decrease, the controller controls to decrease the number of the switching transistors participating in operations of the switching power supply. Also provided is a control method for the switching power supply. The switching power supply and the control method therefor ...

风光储数单管信号塔

包装盒（智能驾驶套件U-CAR）

包装箱（讯飞AI扫拖机器人X3）

方向盘总成

壁灯（正方210）

Preparation method of fireproof wall material capable of automatically decomposing formaldehyde

The invention relates to the technical field of fireproof wall materials, and discloses a preparation method of a fireproof wall material capable of automatically decomposing formaldehyde, which comprises the following steps: (1) mixing MgO and Al2O3, sequentially carrying out ball milling, ultrasonic treatment and heating reaction to obtain a porous precursor; (2) mixing the porous precursor with nano LiF, and calcining under the protection of nitrogen to obtain a calcined product; and (3) loading titanium dioxide nanotubes on the calcined product through a coupling reaction to obtain the fireproof wall material. The spinel material has excellent fire resistance, and titanium dioxide nanotube loading is adopted, so that the wall material has the capability of catalytically decomposing toxic and harmful substances such as formaldehyde and benzene; the porous precursor is synthesized firstly, and then the nanoscale LiF is added, so that on the basis of meeting the material performance, the ...

Character recognition method and character recognition model training method and device

The invention relates to a character recognition method and a character recognition model training method and device, and the method comprises the steps: inputting a to-be-recognized picture into at least two predetermined character recognition models, and obtaining a corresponding first recognition result and a first confidence coefficient; under the condition that the first recognition results corresponding to the at least two character recognition models are inconsistent, determining a second confidence coefficient of each character recognition model based on the first confidence coefficient, a first evaluation index and a second evaluation index; wherein the first evaluation index and the second evaluation index are determined on the basis of evaluation values of recognition results of the to-be-recognized picture and a preset sample picture on at least two evaluation dimensions of each character recognition model; and determining a second recognition result of the to-be-recognized ...

Titanium tetrachloride refining system for recovering waste heat of preheater

The invention discloses a titanium tetrachloride refining system for recovering waste heat of preheaters, which comprises the following steps: S1, setting the tail gas temperature of a titanium tetrachloride preheater and an oxygen preheater to be interlocked with a valve of a main pipe, and when the tail gas temperature is higher than 300 DEG C, opening the valve of the titanium tetrachloride preheater and the oxygen preheater to the main pipe through the interlocking, gas at the outlet of the preheater pipeline converges at the header pipe and enters the heat exchanger; tail gas heat of the titanium tetrachloride and the oxygen preheater and raw material titanium tetrachloride for reducing organic matters are preliminarily preheated and enter the reboiler for secondary heating, so that energy is saved, energy consumption is reduced, the added value of products is improved, waste of resources is effectively avoided, and recycling of preheating is further improved.

CHANNEL ACCESS METHOD AND SYSTEM, STATIONS, AND COMPUTER READABLE STORAGE MEDIUM

Disclosed is a channel access method. A first station acquires a first transmission time period and sends indication information to a second station in the first transmission time period, the indication information being used for informing the second station of acquiring a second transmission time period; and the second station acquires the second transmission time period and performs radio frame transmission in the second transmission time period. Also disclosed are a channel access system and stations.

Wright-Giemsa dye liquor formula and preparation method

The invention relates to a Wright-Giemsa dye liquor formula. Each part of dye liquor comprises 1 part of Wright pigment powder, 0.5 part of Giemsa pigment powder, 20 parts of glycerol, 0.5 part of 3% hydrogen peroxide and 500 parts of methanol. The invention belongs to the technical field of medical detection, discloses a Wright-Giemsa dye liquor formula and a preparation method, and aims to accelerate the process of oxidizing to form azure in the dye liquor preparation process, shorten the standing time after dye liquor preparation and improve the dyeing effect of the dye liquor.

METHOD AND DEVICE FOR SENDING SERVICE INDICATION INFORMATION

Disclosed are a method and a device for sending service indication information. In the method, an AP sends a radio frame to multiple STAs associated with the AP, the radio frame carrying an indication field, and the indication field being used to indicate whether the radio frame carries service indication virtual bitmap information. According to the technical solution provided by the present invention, in the case that the AP has no unicast cache data of any station, multiple STAs associated with the AP can know whether the AP has its own unicast cache data to be sent.

DATA RETRANSMISSION METHOD AND DEVICE, STORAGE MEDIUM, AND ELECTRONIC DEVICE

The present application provides a data retransmission method and device, a storage medium, and an electronic device. The method comprises: sending a first data packet, the first data packet comprising data block identification information.

ACTIVE FILTER AND COMMUNICATION SYSTEM

An active filter and a communication system. The active filter (1) comprises a main circuit (11) and a control circuit (12). The control circuit is used for detecting a first current (IL) output by a negative electrode of an input end of a conversion circuit (2) so as to obtain a harmonic component (ILAC) in the first current, and generating a control signal (V_GATE1-4) according to the harmonic component. The main circuit is used for generating a second current (IF) opposite to the harmonic component in phase under the control of the control signal, so that a source current (IS) formed by the first current and the second current passing through a power supply (4) is a direct current. The active filter can effectively suppress low-frequency noises.

Code generation method and device, computer equipment, storage medium and product

The invention provides a code generation method and device, computer equipment, a storage medium and a product, and relates to the technical field of computer development, the code generation method runs in a low-code platform, the low-code platform is provided with a code generation engine, and the code generation method comprises the steps that target application information and a domain-specific language sent by the low-code platform are received; if it is determined that the target application information is matched with the code generation engine, calling the code generation engine to analyze the domain-specific language, and generating a target code; if it is determined that the target application information is not matched with the code generation engine, calling a preset code scene template to analyze the domain-specific language, and generating a target code; wherein the target code is used for realizing an application service corresponding to the target application information ...

HIGH-BARRIER POLYPROPYLENE CARBONATE-BASED COMPOSITE FILM MATERIAL AND PREPARATION METHOD THEREOF

Disclosed are a high-barrier polypropylene carbonate-based composite film material and a preparation method thereof. The film material comprises the following raw materials in parts by weight: 60-95 parts of polypropylene carbonate, 5-20 parts of polyvinyl alcohol, 0.5-10 parts of layered silicate and 5-20 parts of a plasticizer. The degradable high-barrier polypropylene carbonate-based composite film material prepared by modification using polypropylene carbonate as a base material has an oxygen permeability coefficient as low as 25cm3_um.(m2_24h_atm) and a water vapour permeability coefficient as low as 56g/(m2_24h). The material has improved barrier properties, thermal properties and mechanical properties, especially improved the barrier properties while the original characteristics of the base material are maintained and can replace completely high-barrier materials such as polyethylene-vinyl alcohol and is used for the production of various packaging products which require high-barrier ...

Vehicle-mounted antenna

The utility model relates to the technical field of antennas, in particular to a vehicle-mounted antenna. The vehicle-mounted antenna comprises an antenna bottom plate, a GNSS antenna and a communication antenna group, the antenna bottom plate is a circuit board, the GNSS antenna is arranged on the antenna bottom plate and electrically connected with the antenna bottom plate, the communication antenna group comprises a plurality of communication antennas with similar working frequencies, the plurality of communication antennas are arranged on the antenna bottom plate in a trapezoid surrounding manner by taking the GNSS antenna as a center, and the GNSS antenna is electrically connected with the communication antenna group. The communication antennas are arranged at the edge of the antenna bottom plate, and the two communication antennas with the same frequency are not adjacent in the surrounding direction. The vehicle-mounted antenna is conformally arranged relative to the shell of the ...

Pretreatment method of molten salt chlorination bed layer sample

The invention discloses a pretreatment method of a molten salt chlorination bed layer sample, which comprises the following steps: S1, adding a proper amount of sample into a three-neck flask, then pouring hydrochloric acid with a certain concentration into the three-neck flask, stirring, heating the three-neck flask, and connecting a condensation reflux device; s2, rapidly pouring the dissolved sample into a filtering device, and separating insoluble solids from soluble liquids; s3, transferring the insoluble solid separated in the step S2 into the three-necked flask used in the step S1, then adding deionized water into the three-necked flask, stirring, heating the three-necked flask, and connecting a condensation reflux device; s4, quickly pouring the sample dissolved in the step S3 into a filtering device, separating insoluble solids from soluble liquid, and washing the insoluble solids by using deionized water; the content of oxides of titanium and impurities in the titanium raw material ...

Scene aircraft taxiing conflict prediction and visualization method

The invention relates to the technical field of civil aviation airport scene traffic control, and discloses a scene aircraft taxiing conflict prediction and visualization method, which comprises the following steps of: firstly, establishing two layers of taxiing road network models according to line graph layer data with geographic information; recording monitoring data, establishing a track, extracting a historical sliding route, and respectively calculating probability models of a port entering and departure selection edge; predicting a subsequent taxiing route and taxiing time according to the probability model to obtain a predicted route of each airplane; according to the predicted route, judging whether conflicts may occur among the aircrafts; and when a conflict is predicted to occur, carrying out visual mapping on the predicted route and conflict information. According to the method, prediction can be carried out in advance before the determined conflict scene is formed, the taxiing ...

Message setting method, system and equipment for electric energy meter communication based on SMS (Short Message Service) and medium

The invention provides an SMS-based electric energy meter communication message setting method, system and device, and a medium. Relates to the technical field of electric energy meter communication. The method comprises the following steps: querying according to application attributes of an electric energy meter to obtain a coding information table, searching corresponding coding information strips in the table according to short message category information of a plurality of SMS short messages, and obtaining corresponding security coding indication bits and key coding indication bits in the coding information strips according to security levels and communication key permissions of the electric energy meter, obtaining a message coding indication bit according to the security coding indication bit and the key coding indication bit, carrying out coding information identification and coding arrangement splicing on the plurality of SMS short messages according to the combination of the security ...

DATA TRANSMISSION METHOD AND DEVICE

Disclosed are a data transmission method and device. The method of the embodiments of the present application comprises: a network side device acquiring at least one service data stream to be sent to at least two access network devices; the network side device acquiring a first characteristic parameter of the at least two access network devices, wherein the first characteristic parameter is used for indicating the service quality of the access network devices; the network side device determining, according to the first characteristic parameter, an access network device, the service quality of which matches each service data stream in the at least one service data stream from among the at least two access network devices; and the network side device sending all data packets in each service data stream to a user equipment via the access network device matching the service data stream. Further provided is a network side device for improving the system performance and the quality of data transmission ...

METHOD FOR IMPLEMENTING AUTOMATIC RETRANSMISSION FUNCTION AND RELATED STATION

Provided by the present application are a method for implementing an automatic retransmission function and a related station. The method comprises: a first station sending a first message, the first message carrying automatic retransmission enabling information, and the automatic retransmission enabling information being used to indicate to turn on or shut off an automatic retransmission function.

ENCAPSULATION MODULE BASED ON PINS OF PCB BODY AND PREPARATION METHOD THEREFOR

The present application relates to the technical field of power supply encapsulation, and specifically relates to an encapsulation module based on pins of a PCB body, comprising an encapsulation module and pins protruding from the encapsulation module. The encapsulation module comprises a PCB body and a power component, a first surface and a second surface being provided opposite each other on the PCB body, and the power component being provided on the first surface or the second surface. A signal from the power component, by means of surface layer copper on the PCB body, is in communicative connection with a pin on one side of the first surface or of the second surface. The pin positioned on one side of the first surface or of second surface of the PCB body is an etched pattern in the surface layer copper positioned on the PCB body and protruding out of the encapsulation module. The encapsulation module has a small volume, and does not require complicated pin welding processing after encapsulation ...

Tool and method for counterpoint installation of miniature sensitive element

The invention provides a tool and method for counterpoint installation of a miniature sensitive element, the tool comprises a base bearing structure, a patch limiting structure, a positioning pin and a counterweight structure, and a positioning groove is designed on the base bearing structure and is used for placing and roughly limiting a base to be subjected to patch. A base positioning limiting hole and a sensitive element positioning limiting groove are machined in the limiting structure according to the boundary dimension of the sensitive element and the dimension of a base positioning pin through the precise laser machining technology. The positioning pin is used for precise assembly positioning between the limiting structure and the counterweight structure, and the counterweight structure is used for applying pressure to the sensitive element placed on the tube shell so as to realize tight attachment between the fixed supporting area of the sensitive element and the mounting boss ...

Battery cell explosion-proof structure, battery cell and application

The invention relates to a battery cell explosion-proof structure which comprises an explosion-proof assembly, an explosion-proof hole adjusting assembly and a protection part, an explosion-proof hole is formed in the explosion-proof assembly, the explosion-proof hole adjusting assembly is arranged at the explosion-proof hole, the explosion-proof hole, the explosion-proof hole adjusting assembly and the protection part are integrated in an injection molding mode, and the explosion-proof hole adjusting assembly restrains the injection molding thickness of the protection part. Therefore, the protection piece is applicable to explosion pressure. According to the invention, the pressure during thermal runaway of the battery cell is released in time, explosion is prevented, and meanwhile, design is carried out through the optimal explosion-proof opening pressure corresponding to the battery cells of different systems, so that the spreading of thermal runaway in the battery system is delayed.

SYSTEM AND METHOD FOR TRAFFIC EMERGENCY INTERVENTION

A system and a method for traffic emergency intervention are provided, the system comprising at least a smart camera (10) and a traffic emergency intervention control unit (20), wherein: the smart camera (10) is set to analyze a real-time traffic video, if it is determined that there is an emergency vehicle through an intersection by analysis, then the traffic emergency intervention control unit (20) is notified to start an emergency intervention; when the traffic emergency intervention control unit (20) is set to receive the notification of starting an emergency intervention, a running line of the emergency vehicle through an intersection is analyzed, traffic lights to be gone through by the emergency vehicle are obtained, and control modes of the traffic lights to be gone through by the emergency vehicle are changed to emergency intervention modes successively.

METHOD AND DEVICE FOR TRANSMISSION INSTRUCTION, TRANSMISSION TRIGGERING AND TRANSMISSION IMPLEMENTATION FOR MULTI-STATION

A method and device for transmission instruction, transmission triggering and transmission implementation for multi-station. A first station sends a radio frame carrying instruction information on a competed channel with a bandwidth being a first bandwidth to an access point, and the instruction information being used for instructing the access point to trigger the first station, or, trigger the first station and one or more other stations to perform uplink transmission; the problem in the related art that, if some station obtains a certain channel resources in a contention manner and the station itself only occupies a part of the channel resources for transmission, since all the bandwidth resources obtained from the contention is already claimed by the station for occupation, and other stations are unable to compete for occupation, thereby the waste of frequency resources is caused, is solved, and further, the waste of the air interface resources during large bandwidth transmission is ...

Geological profile measuring device

The utility model relates to a geological profile measuring device, and belongs to the technical field of geological survey. The geological profile measuring device comprises a bottom stabilizing device; the bottom stabilizing device is connected to the bottom end of the foot holding device; the telescopic supporting component is vertically arranged, and the lower end of the telescopic supporting component is fixedly connected with the top end of the foot holding device; the upper end of the telescopic supporting part is fixedly connected with the bottom end of the measuring seat; and the profile measuring part is rotationally connected to the measuring seat. The geological profile measuring device simplifies the structure, and has the characteristics of small volume, time saving, labor saving and the like.

Machine tool configuration file data processing method and device

The invention provides a machine tool configuration file data processing method and device, and relates to the field of data processing. The method comprises the following steps: acquiring a machine tool configuration file, and performing structured expression on machine tool type information to obtain a machine tool type hierarchical expression structure chart; the machine tool configuration file comprises the machine tool type information and the machine tool attribute information; constructing a multi-level data structure relation table of at least two layers according to the graph hierarchical relation of the machine tool type hierarchical expression structure graph; and performing machine tool configuration file data processing on the field corresponding data and the machine tool attribute information in each hierarchical data structure relation table by using a data analysis processing tool to obtain data processing result information. The device executes the method. According to ...

Preparation method of non-noble metal-noble metal bimetallic nano-alloy with efficient enzyme activity and mild photo-thermal performance

The invention relates to a preparation method of a non-noble metal-noble metal bimetallic nano-alloy, in particular to a preparation method of a non-noble metal-noble metal bimetallic nano-alloy with efficient enzyme activity and mild photo-thermal performance. The problems that an existing nano-enzyme only contains a single metal element, the catalytic activity of the nano-enzyme is low, and the enzymatic reaction condition provided by the tumor microenvironment is limited are solved. The preparation method comprises the following steps: 1, synthesizing a bimetallic nano alloy PdCu; 2, modifying the nano material; the method is used for preparing the non-noble metal-noble metal bimetallic nano-alloy with efficient enzyme activity and mild photo-thermal performance.

POWER PLANT FEED LINE SWITCH CONTROL MODULE FOR A NUCLEAR POWER STATION

A power plant feed line switch control module for a nuclear power station consisted of an input instruction processing logic unit (1), a fault processing logic unit (2), a state processing logic unit (3), an output instruction producing logic unit (4), and a feed line switchgear. Three input ends of the input instruction processing logic unit (1) are respectively connected to a feed line switchgear fault signal (1-1), a lock signal (1-2) and an operator station human-machine interface signal (1-3), and its two output ends are respectively connected to an input end of the fault processing logic unit (2) and the output instruction producing logic unit (4). Two input ends of the fault processing logic unit (2) are respectively connected to an output end of the state processing logic unit (3) and the output instruction producing logic unit (4), and its two output ends are respectively connected to an input end of the output instruction producing logic unit (4) and an alarm end (2-1) of the ...

Intelligence house air conditioning control device based on cc2530

... 本实用新型公开了种能够根据室内的温度自动调控空调的工作状态进而实现自动控制的基于cc2530的智能家居空调控制装置。该控制装置，包括cc2530控制芯片、温度传感器、供电模块、无线蓝牙模块、空调遥控器、显示屏、具有蓝牙通信功能的客户端。温度传感器实时检测屋内的温度并将检测到的温度信号传递给cc2530控制芯片，cc2530控制芯片根据接收到的温度信号值选择与该温度值对应的空调模式，并将控制指令发送给空调遥控器，进而控制空调的工作状态，整个控制过程可以自动完成，通过无线蓝牙模块可以将室内温度、空调的工作状态发送至客户端，也可以通过客户端给cc2530控制芯片发送控制指令，使人们能够自由的调控空调的工作状态。适合在智能家居技术领域推广应用。 ...

SYNCHRONOUS TRANSMISSION METHOD FOR CHANNEL SWITCHING AND STATION DEVICE

The present invention relates to the field of wireless communications. Disclosed are a synchronous transmission method for channel switching and a station device. The method comprises: a transmitting station monitoring a prescribed channel, and if the prescribed first channel is busy and a second channel is idle, the transmitting station transmitting data on the second channel after first specific time after start time of a service period.

CHANNEL ACCESS METHOD, STATION AND SYSTEM

A channel access method includes: a second station receives a first wireless frame transmitted by a first station in a first transmission time period, the first wireless frame carrying a signaling used for informing the second station that the first station releases the first transmission time period; the second station receives the first wireless frame transmitted by the first station, performs channel detection within a preset time interval, and transmits a second wireless frame on the subset of the channel set whose channel detection result is idle.

Leak with filter cup in laboratory

... 本实用新型公开了一种实验室用过滤杯漏，其技术方案要点是：包括呈漏斗状的杯体，所述杯体的上部为盛液斗，所述杯体的下部为出液管，所述盛液斗内可拆卸连接有与其相适配的陶瓷过滤片，且所述陶瓷过滤片与所述盛液斗的内壁在配合时为密封连接。本实用新型解决了现有技术中使用滤纸过滤带来的不可重复利用的问题。 ...

Device and method for evaluating uniformity of bamboo aggregate cement concrete mixture and application

The invention discloses a device and a method for evaluating the uniformity of a bamboo aggregate cement concrete mixture and application. The device comprises a cylinder body, a base, a sealing element and vibration equipment, the cylinder body is vertically arranged, is provided with a containing cavity and is arranged to be capable of containing a bamboo aggregate cement concrete mixture; an inlet is formed in the top of the cylinder body; n through hole layers are uniformly arranged on the side wall of the cylinder body along the height direction, and N is a natural number greater than or equal to 3; a plurality of through holes are uniformly formed in each through hole layer in the circumferential direction of the barrel body; the base is arranged below the barrel body; the sealing piece is matched with the through hole and is used for sealing the bamboo aggregate cement concrete mixture in the cylinder body; and the vibration equipment is arranged below the base and is used for supporting ...

Real scene three-dimensional modeling method and device based on remote sensing satellite image and medium

The embodiment of the invention discloses a live-action three-dimensional modeling method based on a remote sensing satellite image, computer equipment and a medium. The method comprises the following steps: acquiring a to-be-processed image shot by a high-resolution satellite, and carrying out image fusion, radiation correction and histogram matching on the to-be-processed image to obtain a first image; performing automatic connection point matching and image control point measurement on the first image to obtain a second image; and performing directional vector line acquisition, image texture automatic extraction and mapping and three-dimensional model editing on the second image to obtain a monomer three-dimensional model. According to the embodiment of the invention, the three-dimensional model is constructed based on the multi-angle three-dimensional imaging capability of the high-resolution satellite, is not limited by the constraint of time and space, and is suitable for regions ...

Device for removing burrs in different shapes of metal casting parts

The invention relates to the technical field of industrial production, in particular to a device for removing burrs in different shapes of metal castings. The invention provides the device for removing the burrs in different shapes of the metal casting parts, which can be used for quickly polishing and can be matched with the special-shaped metal casting parts during polishing. A device for removing burrs of different shapes of metal casting parts comprises a base, a guide piece, guide rails, moving platforms, a removing mechanism and a clamping mechanism, the upper side of the front portion of the base is connected with the guide piece through bolts, the top of the base is connected with the guide rails which are symmetrical front and back, the guide rails are connected with the two moving platforms in a sliding mode, and the removing mechanism is arranged on the guide piece. And clamping mechanisms are arranged on the moving platforms. According to the grinding device, the twist shaft ...

Method for extracting titanium from schreyerite waste residues

The invention relates to the technical field of comprehensive utilization of metallurgical resources, and provides a method for extracting titanium from schreyerite waste residues, which comprises the following steps: modifying and oxidizing titanium residues, recovering iron, vanadium and titanium in the schreyerite waste residues by alkaline leaching and acid leaching processes, removing impurities such as Mg, Mn and the like in the schreyerite waste residues, and realizing that the vanadium leaching rate is up to more than 90% after alkaline leaching. Titanium is extracted after acid leaching, and the content of obtained TiO2 can reach 98 wt.% or above.

Welding robot control system based on image recognition

The invention belongs to the field of control, and discloses a welding robot control system based on image recognition, which comprises an image processing module, a calculation module and a control module, the image processing module is used for calculating the line laser image to obtain coordinates of a welding seam; the calculation module is used for calculating target coordinates of the welding head according to the coordinates of the welding seam; the control module is used for moving the welding head to the target coordinate. In the process of processing the line laser image, the coordinates of the welding seam can be obtained only through graying operation, filtering operation and window detection operation, and compared with the prior art, the steps of binarization processing, morphological processing, refining processing and the like are reduced, so that the obtaining speed of the coordinates of the welding seam is increased, and the working efficiency is improved. And the welding ...

Process and optimization method for extracting canthaxanthin from chromochlorella zoffii

The invention discloses a process and an optimization method for extracting canthaxanthin from chromochlorella zoffithii. Comprising the following steps: firstly, screening out a natural eutectic solvent with the highest extraction efficiency on canthaxanthin in Chlorchlorella zoffii; main effect factors influencing the extraction efficiency are found out on the basis of partial factor design tests and applied to a central composite design test, and the extraction efficiency of canthaxanthin under different parameter conditions is obtained; and finally, performing extraction process parameter optimization in combination with the response surface model, and performing test verification. Compared with a traditional organic solvent, the natural eutectic solvent adopted in the method is safer, more efficient, more economical and more environmentally friendly, the time cost is greatly saved through the applied optimized extraction means, high-value reference significance is provided for industrial ...

CELL SHORT MESSAGE DELIVERY METHOD AND DEVICE

Disclosed are a cell short message delivery method and device. The method comprises: selecting a short message, the short message being sent through a short message center to a mobile terminal (S102); and sending the short message together with MSC information of the mobile terminal to the short message center (S104). In embodiments of the present invention, the short message is directly sent together with the MSC information of the mobile terminal to the short message center, so that the short message center does not query an HLR, thereby avoding meaningless charging. In addition, the MSC information may be a directly applicable MSC or an MSC GT that can be used after query and conversion.

TRANSMISSION METHOD, DEVICE, SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM

Disclosed are a transmission method, a device, a system, and a computer-readable storage medium. The transmission method comprises: creating an automatic repeat request process for a first packet; setting a lifecycle for the automatic repeat request process; and transmitting the first packet. The embodiments of the present invention, by setting the lifecycle for the automatic repeat request process, allow the automatic repeat request process to be removed in a timely manner and, insofar as the number of automatic repeat request processes that can be simultaneously supported is limited, allow a new automatic repeat request process to be created for a newly transmitted packet in a timely manner, thus increasing transmission efficiency.

Formula engine hood latch support assembly that contracts bursts

... 本实用新型公开了种溃缩式发动机罩锁扣支架总成，包括与机罩内板焊接的锁扣支架、与机罩外板连接的弹性支撑板及连接在所述锁扣支架上的锁扣轴；锁扣支架包括平面板、左前支撑支架、左后支撑支架、右前支撑支架、右后支撑支架，且左前支撑支架与左后支撑支架相对设置，右前支撑支架与右后支撑支架相对设置，左前支撑支架与右前支撑支架不在同平面上，左后支撑支架与右后支撑支架不在同平面上；所述锁扣轴包括副锁扣轴和主锁扣轴，所述副锁扣轴连接左前支撑支架和左后支撑支架，所述主锁扣轴连接右前支撑支架和右后支撑支架。保证在较小的外力作用下满足对机罩外板支撑的作用，同时，在较大冲击力作用下也能满足行人碰撞时溃缩变形的需求。 ...

Livestock and poultry house environment parameter intelligent detection and control method and system based on Internet of Things

The invention discloses a livestock and poultry house environment parameter intelligent detection and control system based on the Internet of Things. The system comprises a detection node, a control node, a gateway node, a field monitoring end, a cloud platform, a browser end and a mobile APP end. In order to solve the problems of existing intelligent breeding, local monitoring and remote monitoring can be combined, remote monitoring of a mobile phone and a browser end on the system is achieved by designing and developing cloud configuration, the on-site monitoring end and the browser end can achieve feeding formula setting and automatic control in different periods, and the feeding efficiency is improved. The cloud map function in the cloud platform can locate the position of the equipment and can display the position on the map in real time, remote supervision of related departments is facilitated, the ultraviolet radiation function is achieved, common diseases can be effectively prevented ...

About beam set of cervical vertebra way of escape prone position upper limbs

... 颈椎后路俯卧位上肢约束套，一种用于约束颈椎后路俯卧位手术患者的双上肢，起到固定上肢牢靠、保护肢体功能安全和术中方便医务人员对手术患者及其使用的生命体征监测仪器进行观察和调整的医用辅助材料。它的整体是左、右肢体套拼接起来的，由左上肢袖套、右上肢袖套、魔术贴A面、魔术贴B面、左手袖口、右手袖口、圆孔、系带八部分组成，左、右肢体套大小一样，合在一起呈倒凹字型。左、右上肢袖套呈筒状，上下不封口，方便患者上肢从袖套口进入袖套内。左、右手袖口处呈半弧形外长内短，在术中可对患者手部皮肤进行保护避免与金属接触预防电灼伤，手术中如进行检查、观察和调整可随时打开使手指露出。右肢体套正面上均匀分布四条同长同款魔术贴A面，两条魔术贴A面之间间隔空隙相同，左肢体套背面均匀分布两条同长同款魔术贴B面，两条魔术贴B面之间间隔空隙相同，两条魔术贴A面之间间隔距离和两条魔术贴B面之间间隔距离相等，可根据患者的体型调整宽窄使魔术贴A、B面粘贴的位置合适，对患者双上肢位置固定安全有效，术中无双上肢移位现象出现。左肢体套分布一圆孔，用于麻醉监护仪线路的出入。圆孔上有两条同宽同长的系带，用于麻醉监护仪线路的固定，预防监护仪线路连接因外力作用导致的脱落。 ...

CHANNEL ACCESS METHOD, STATION AND SYSTEM

A channel access method includes: a second station receives a first wireless frame transmitted by a first station in a first transmission time period, the first wireless frame carrying a signaling used for informing the second station that the first station releases the first transmission time period; the second station receives the first wireless frame transmitted by the first station, performs channel detection within a preset time interval, and transmits a second wireless frame on the subset of the channel set whose channel detection result is idle.

TRANSMISSION METHOD, DEVICE AND STATION, AND COMPUTER STORAGE MEDIUM

The present invention discloses a transmission method, a device and a station, and a computer storage medium. The method comprises: indicating, by a transmission station, in the transmitted radio frame a transmission form for a receiving station when a preset condition is not met in terms of the scheduled resource; and when a preset condition is not met in terms of the scheduled resource, determining, by the receiving station, the transmission form according to an instruction of the transmission station or an agreement with the transmission station. By implementing the embodiments of the present invention, network collisions are reduced and the network performance is improved.

METHOD, DEVICE AND COMPUTER READABLE STORAGE MEDIUM FOR PROCESSING CHANNEL ACCESS

A method for processing channel access is disclosed in the present invention, which includes: a wireless station determines a first delay access variable and/or a second delay access variable according to the received wireless frame; the wireless station determines the delay time for accessing the channel according to the second delay access variable or according to the first delay access variable and the second delay access variable. A device for processing channel access is also disclosed in the present invention.

OBJECT QUANTITY DETERMINATION METHOD, APPARATUS, AND STORAGE MEDIUM

Provided are an object quantity determination method, apparatus, and storage medium, said method comprising: receiving an allocation service call request from a first device, the allocation service call request comprising a service allocation identifier and allocation rule data of an object to be allocated, the first device being a device corresponding to an object allocation node (S101); according to a correlation between the stored service allocation identifier and allocation rule, obtaining a target allocation rule corresponding to the service allocation identifier of the object to be allocated (S102); according to the target allocation rule and allocation rule data, determining the quantity of objects to be allocated to each downstream node, and sending the quantity of objects to be allocated to each downstream node to the first device (S103). The invention enables a device corresponding to an object allocation node to allocate objects to be allocated; development of a code file is ...

Sealing plug special for valve of electric power low-oil equipment

The invention relates to the technical field of sealing plugs, in particular to a sealing plug special for a valve of electric power low-oil equipment, which comprises a central column and further comprises a thread bushing fixedly connected with the outer side of the central column; a nut; a connecting column; four through holes are formed in one side of the nut, and the limiting blocks are fixedly connected with the inner sides of the through holes and the outer side of the central column; a plurality of limiting grooves are formed in the outer side of the central column, and the limiting strips are fixedly connected with the inner sides of the limiting grooves and the inner side of the threaded sleeve; the anti-skid gasket is fixedly connected with the lower side of the nut; a guard ring; the connecting plate A is fixedly connected with the upper side of the protective ring; a special dismounting structure is arranged on the upper side of the connecting column. The protective ring and ...

Device and method for testing thermal stability of optical axis of infrared sighting device

The invention discloses a device and a method for testing thermal stability of an optical axis of an infrared sighting device. The device comprises an optical platform, an infrared thermal radiation target, a temperature test box, a tool flange, a theodolite, image acquisition and display equipment, the infrared sighting device and a collimator. During a test, the temperature test box provides a constant temperature condition for the infrared sighting device, the tool flange and the second reference reflector in the box; the theodolite measures the variable quantity of the included angle between the first reference reflector and the second reference reflector; meanwhile, the position variation of the center position of the infrared image output under different temperature conditions relative to the infrared heat radiation target is recorded through an infrared sighting device; and calculating and analyzing the position variable quantity corrected by the included angle variable quantity ...

High-voltage resistor sampling device

The utility model belongs to the technical field of resistor protection, and particularly relates to a high-voltage resistor sampling device. The utility model discloses a high-voltage line resistor which comprises three resistors which are connected with a copper bar in the same direction, a base chamber is arranged on the periphery of the copper bar, a resistor chamber is arranged on the periphery of the resistor and communicated with the base chamber, the resistor penetrates through the resistor chamber, and the other end, connected with the copper bar, of the resistor is connected with a high-voltage line. A high-voltage line connecting end of the resistor is connected with the top of the resistor chamber; the resistor is connected with the same copper bar in the same direction, and the resistor and the copper bar are both isolated from the outside, so that dust accumulation is prevented, the resistance of the tested resistor is stable and reliable, and the device is convenient to transport ...

Grabbing device coupled with flexible adhesion and mechanical locking

The invention discloses a flexible adhesion and mechanical locking coupling grabbing device which comprises a clamping component, an actuating layer and self-adaptive adjusting pieces, the actuating layer is installed on the clamping component, and the self-adaptive adjusting pieces are arranged on the grabbing face of the clamping component in an array mode. The self-adaptive adjusting part comprises a flexible part and a rigid part which are fixedly connected to the rotating shaft, the flexible part drives the rigid part to synchronously rotate through the rotating shaft and then makes contact with a grabbed object in a self-adaptive mode, and a limiting adjusting part used for adjusting rotation of the flexible part is installed in the rotating direction of the flexible part. After the flexible component and the rigid component synchronously rotate, the highest point position of the relative mounting surface is changed, so that the flexible component and the rigid component are in switching ...

Preparation method of high-thermal-conductivity insulating cellulose composite material

The invention discloses a preparation method of a high-thermal-conductivity insulating cellulose composite material, which comprises the following steps: firstly, modifying boron nitride BN by using tannic acid TA and gamma-glycidoxypropyltrimethoxysilane KH560 to obtain a modified boron nitride suspension, namely a KH560-TA-BN suspension; modifying the reduced graphene oxide rGO by using tannic acid TA and 3-aminopropyltriethoxysilane KH550, so as to obtain a modified reduced graphene oxide suspension liquid, namely a KH550-TA-rGO suspension liquid; and dispersing the KH560-TA-BN suspension and the KH550-TA-rGO suspension into the nanocellulose suspension, and obtaining the high-thermal-conductivity insulating cellulose composite material by adopting a vacuum suction filtration and hot pressing mode. The method is simple in preparation process, mild in reaction condition and stable in product quality, the prepared cellulose composite material can effectively improve the insulating property ...

RADIO FRAME TRANSMITTING METHOD AND APPARATUS

A radio frame transmitting method, applicable to communication stations and comprising: receiving request frames sent simultaneously or separately by one or more stations; and sending a broadcast response frame to the one or more stations. A radio frame transmitting device. The present solution can improve the transmitting efficiency.

Automatic reset pipe cutting machine for grease lubricated PVC (polyvinyl chloride) pipeline

The invention discloses a grease lubrication PVC pipeline automatic reset pipe cutting machine which comprises a cutter assembly, a first material supporting assembly and a second material supporting assembly, the cutter assembly comprises two cutter rest side plates, an L-shaped guide rail, a straight guide rail, an L-shaped cutter rest, a pressing disc, a pressing spring, a cutter, a channel steel part, a reset cutter plate and a first torsional spring, the L-shaped guide rail is fixedly connected with the two cutter rest side plates, and the straight guide rail is fixedly connected with the two cutter rest side plates. The two straight guide rails are connected with the upper ends and the lower ends of the knife rest side plates in a fastened mode respectively, the L-shaped knife rest is connected with the L-shaped guide rails and the straight guide rails in a sliding mode, the pressing disc is hinged to the two knife rest side plates through eccentric pins, the upper end of the compression ...

ACCESS METHOD AND DEVICE FOR WIRELESS NETWORK

Disclosed is an access method and device for wireless network. The method comprises: in a wireless network supporting a variety of channel access modes, an access point maintains the status of the service-based or site-based service connection with a site, and changes the channel access mode used by the above service-based or site-based service connection through negotiating with the site or sending control information to the site.

METHOD FOR OBTAINING T CELL AND USE

Provided are a method for inducing the transdifferentiation of B lymphoid cells into T lymphoid cells using a transcription factor Hoxb5, a related product and the use thereof. The method particularly comprises: introducing Hoxb5, a nucleic acid molecule encoding Hoxb5, or a construct comprising the nucleic acid molecule into the B lymphoid cell to obtain a Hoxb5 over-expressing B lymphoid cell; and implanting the obtained B lymphoid cell into a subject, obtaining a regenerated T cell progenitor cell by means of transdifferentiation, and differentiating the T cell progenitor cell to obtain a mature and functional T lymphoid cell.

CLIENT ACCESS METHOD AND DEVICE

Disclosed are a client access method and device, which relate to the technical field of communications and can solve the problems in the prior art that the user perception is inconsistent and the user experience is poor because interfaces are different between clients of different types and a monitoring platform. The method comprises: receiving, by interfaces of the same type, a user login request from a client; according to the user login request, determining a serving node corresponding to a user; and instructing the client to log in the serving node, so that the client communicates with the serving node. The present invention can be used in various distributed systems having a server and a client.

Link relation prediction method, entity knowledge graph generation method and device

The embodiment of the invention provides a link relation prediction method and device and an entity knowledge graph generation method and device. When link relation prediction is carried out on the entity knowledge graph, entity representations of entity nodes in the entity knowledge graph are obtained. Then, a link relationship prediction model is used to predict a link relationship between the entity nodes according to the entity characterization of the entity nodes. The used link relationship prediction model is trained by executing a multi-task-based model prediction process by using entity representation of entity nodes, and the executed multiple tasks comprise a link relationship prediction task and a prediction threshold learning task.

Battery cell horizontal placement module with thermal runaway protection structure

The invention relates to a battery cell horizontally-arranged module with a thermal runaway protection structure, the battery cell horizontally-arranged module comprises a battery cell module, an insulation protection part, an end plate, a connecting shell and a cooling part, the battery cell module comprises battery units and a fireproof thermal insulation layer, the battery units and the fireproof thermal insulation layer are alternately stacked, and the battery units are stacked in the thickness direction, so that the battery cell module is horizontally arranged, and the thermal runaway protection structure is formed. The fireproof heat insulation layer prevents heat from being transmitted to the adjacent battery units through the side face after the battery units are out of control, output pole pieces are arranged at the two ends of the battery cell module, the insulation protection parts are arranged on the output pole pieces, end plates are arranged outside the insulation protection ...

Preparation method of hydrogel composite material

The invention discloses a preparation method of a hydrogel composite material, which comprises the following steps: firstly, modifying a multi-walled carbon nanotube by using tannic acid and iron ions to obtain a tannic acid and iron ion modified multi-walled carbon nanotube marked as CNT (at) TA-Fe < 3 + >; carrying out an in-situ reduction reaction on a silver ammonia solution and the CNT (at) TA-Fe < 3 + > obtained in the step 1 to obtain a multi-walled carbon nanotube deposited with Ag nanoparticles, and recording the multi-walled carbon nanotube as CNT (at) TA-Fe < 3 + > (at) Ag; and carrying out stirring, standing and glycerol replacement treatment on gelatin, acrylamide and the CNT (at) TA-Fe3 + (at) Ag obtained in the step 2 to obtain the hydrogel composite material with self-repairing, anti-freezing and antibacterial properties. The method is simple in preparation process and mild in reaction condition, and the prepared hydrogel composite material has self-healing, anti-freezing ...

PLANE GEOMETRY CONSISTENCY DETECTION METHOD, COMPUTER DEVICE AND STORAGE MEDIUM

The present application provides a plane geometry consistency detection method, a computer device, and a storage medium, wherein the method comprises obtaining a first normal vector set and a second normal vector set, and a first distance set and a second distance set; obtaining each pair of first normal vectors and a pair of second normal vectors matching their angles, and calculating a first rotation matrix and a first projection matrix thereof; converting the first projection matrix into rotation vectors to form a rotation vector set; clustering the elements in the rotation vector set, and generating a first normal vector sequence and a second normal vector sequence according to the elements in a first target classification of the most elements; calculating a second rotation matrix by which the first normal vector sequence is converted into the second normal vector sequence and taking its second projection matrix as a target rotation matrix; in addition, obtaining a distance difference ...

DOWNLINK DATA COLLISION AVOIDANCE METHOD, ACCESS POINT AND STATION

The present invention provides a downlink data collision avoidance method, Access Point (AP) and Station (STA). The method comprises: an AP receives a radio frame transmitted by an STA and used for inquiring whether the AP has a Bufferable Unit (BU) of the STA; after determining that there is the BU of the STA and that the BU is larger than a predetermined threshold, the AP exchanges radio frames with the STA to reserve the channel; after succeeding in reserving the channel, the AP sends the BU to the STA. The transmission method for downlink data collision avoidance can guarantee the fairness among each STAs and the reasonable utilization of channel resources, thus avoiding the collision; furthermore, the channel reservation frame transmitted by the AP can reserve a longer period of time, i.e. a plurality of BUs can be transmitted to the STA at a time, thus saving the link overhead.

Radio frequency electromagnetic field radiation immunity evaluation method for wireless sensing equipment of transformer substation

The invention discloses a radio frequency electromagnetic field radiation immunity evaluation method for wireless sensing equipment of a transformer substation. The method comprises the following steps: calculating the maximum receiving power of wireless sensing equipment in a transformer substation according to the counted transmitting power of the wireless equipment in the transformer substation; determining the receiving electric field intensity of the wireless sensing equipment according to the counted modulation mode, frequency characteristic and maximum receiving power of the wireless equipment in the transformer substation; and evaluating the radio frequency electromagnetic field radiation anti-interference capability of the wireless sensing equipment according to the induced voltage generated by the received electric field intensity on the cable of the wireless sensing equipment and the electromagnetic energy density generated in the wireless sensing equipment. And a technical basis ...

Novel intelligent garbage can group

... 一种新型智能垃圾箱组，左智能锁、左箱盖、微型气化炉、内附式微型内燃发电机、伸缩挡板、回收门、废渣回收箱、左下传感器、左箱壁、芯片、连接区外壳、蓄电池、压缩系统、右箱壁、右箱盖、右智能锁、右上传感器、安全阀、左上传感器，左智能锁设置在左箱盖上，微型气化炉与内附式微型内燃发电机相连接，伸缩挡板设置在内附式微型内燃发电机下方，回收门设置在废渣回收箱左侧，左下传感器设置在左箱壁内，芯片设置在蓄电池内部，左箱壁与右箱壁通过连接区外壳进行连接，压缩系统位于右箱壁内侧，右智能锁设置于右箱盖上，右上传感器置于右箱盖上，安全阀和左上传感器置于左箱壁上。本实用新型具有：结构简单，功能全面，操作方便，经济环保等优点。 ...

Temperature, humidity, pressure and smoke alarm transmitter circuit and transmitter

The invention belongs to the technical field of environment monitoring in a train, and provides a temperature, humidity, pressure and smoke alarm transmitter circuit and a transmitter, comprising a signal collection circuit and a signal processing circuit electrically connected with the signal collection circuit; the signal collection circuit comprises at least one temperature, humidity and pressure collection module and a smoke detection module, a detection element capable of sampling the environment and a comparator capable of comparing a sampling output value of the detection element with a set threshold value are arranged in the smoke detection module, and a smoke alarm signal is generated according to an output result of the comparator. The vehicle-mounted environment monitoring sensor has the advantages that the modular design of measuring parts is adopted for overcoming the defects in an existing vehicle-mounted environment monitoring sensor measuring scheme, so that all modules ...

Capacitor DC superposition harmonic voltage test device and method

The invention provides a capacitor DC superposition harmonic voltage test device and method. The device comprises a direct-current power supply, an electronic device, a protective resistor, a voltage measuring instrument, a current measuring instrument, a blocking capacitor and an alternating-current power supply, the anode of the direct-current power supply is electrically connected with the anode of the to-be-tested capacitor through the electronic device and the protective resistor in sequence; the cathode of the to-be-tested capacitor is electrically connected with the cathode of the direct-current power supply through the current measuring instrument; the voltage measuring instrument is arranged in parallel at two ends of the to-be-tested capacitor; the anode of the blocking capacitor is electrically connected with the anode of the capacitor to be tested, and the cathode of the blocking capacitor is electrically connected with the cathode of the capacitor to be tested through the AC ...

PREPARATION METHOD OF COTTON BAST FIBER AND CHITOSAN COMPOSITE NONWOVEN FABRIC FOR FILTERING

Provided is a preparation method of a cotton bast fiber and a chitosan composite nonwoven fabric for filtering. The method comprises: separating the cotton bast through steam flash-explosion pretreatment; conducting formation using a papermaking method, and adding chitosan to enhance the mechanical property and the filtering efficiency. The process flow is simple, convenient and environment-friendly and adapts to industrialized production. The nonwoven fabric adopts lignin-enriched cotton bast fiber and chitosan as raw materials, so that the nonwoven fabric has high antibacterial property. The cotton bast and the chitosan are biology-based materials and can be degraded in the natural environment after use, so that environmental burden is reduced and the problem that the electrostatic spinning method is difficult in industrialized and mass production is solved.

Mechanical device of transformer tapping switch output voltage automatically regulated ware

... 种变压器分接开关输出电压自动调节器的机械装置，安装于分接开关（29）的顶部，包括分接开关的调节转轴（22）、档位定位齿（31）和卡齿（30），其特征是分接开关的调节转轴（22）顶端穿过固定基板（26）的转轴穿孔，基板固定圈（21）及螺母套在调节转轴上，上下夹紧将固定基板定位，固定基板上安装有正反转步进电机（24）及其传动部件（25），固定基板上还安装有红外发射管和接收管，正反转步进电机通过其传动部件与调节转轴连接，所述的档位定位齿（31）与卡齿（30）相对安装在同平面上。本装置与专门配套的电器装置组合成自动调节器，应用于变压器分接开关的输出电压调节，具有调控及时、精细，可带电和遥控自动调节，省时、省劳、安全、效率高的优点。 ...

Preparation process of compact pure aluminum coating and paint spraying device

The invention discloses a preparation process of a compact pure aluminum coating and a paint spraying device, an AI coating with a complete form can be formed on the surface of a steel-based component, a steel substrate is effectively protected, the corrosion rate is low, the service life is long, and the average adhesive force is high. By optimizing the thickness of the aluminum coating and the thickness of a dry film formed by the hole sealing agent, the technical scheme capable of achieving the best anti-corrosion effect, giving consideration to the durability of the coating and reducing the production cost is obtained, the technology is simple, raw materials are easy to obtain, large-scale popularization can be achieved, and the method has important significance in the field of steel and iron material anti-corrosion.

LOW-TEMPERATURE LIQUID-PHASE METHOD FOR PREPARING ACRYLATE

The invention provides a low-temperature liquid-phase method for preparing acrylate. The low-temperature liquid-phase method for preparing acrylate of the present invention comprises the following steps: adding, into a reactor, acetate, a formaldehyde source, organic amine, a solvent, and an in-situ catalyst by proportion, and stirring and mixing same for an in-situ catalytic reaction, so as to obtain acrylate. In the present invention, a low-temperature liquid-phase method is adopted to prepare acrylate; the operation process is simple, and conditions are mild; depolymerization of polyformaldehyde, activation of formaldehyde and acetate, and an aldol condensation reaction can be simultaneous achieved at 10-25oC under a liquid-phase condition; the cost and energy consumption are low; the method facilitates industrial application; the maximum yield of acrylate can reach 90.7%; and the maximum selectivity of acrylate can reach 94.4%.

Lithium ion battery module capable of releasing stress

The invention relates to a lithium ion battery module capable of releasing stress. The lithium ion battery module comprises two side plates, the two side plates are respectively fixed on the left side and the right side of the battery cell stack, the battery cell stack comprises a plurality of battery cells, the plurality of battery cells are stacked to form the battery cell stack, an insulating interlayer is arranged between every two adjacent battery cells, and an inclined pit is formed in a tab of each battery cell; the bottom plate is fixed at the bottom of the battery cell stack, and the two ends of the bottom plate are respectively connected with the side plates on the two sides. According to the lithium ion battery module capable of releasing the stress, the stress release in the group application process of high-expansion-capacity batteries such as silicon-based lithium batteries and the like can be realized, the battery failure and the module or system structure failure caused ...

ONLINE INDICATION METHOD, APPARATUS AND SYSTEM

Provided are an online indication method, apparatus and system. The method comprises: checking the online state of each PU in a specific area; and if there are offline PUs, sending indication information to the offline PUs, wherein the indication information is used for indicating to the above-mentioned offline PUs to automatically start online. By means of the present invention, offline PUs within a certain area according to physical location information of the Pus can be found, then the above-mentioned offline PUs online through the indication information are automatically triggered, and the problem in the related art that the PUs cannot automatically start online in the case of emergency after being offline is solved, and thus, there is no need for users to start the PUs manually, which is greatly convenient for the users, and can ensure that all the PUs in a critical area are in a normal working state in case of emergency, and improves the working performance of the PUs.

HOLDER FOR MOBILE TERMINAL

Disclosed is a holder for a mobile terminal, comprising: a bag-shaped holder body having an open upper end; and a voltage conversion circuit board provided at a side surface or a bottom surface of the holder body. The voltage conversion circuit board comprises the following sequentially connected components: an input port, a voltage conversion circuit and an output port. A first input port is used to connect to an external power supply. The output port is used to connect to a charge port of a mobile terminal. Provision of a voltage conversion circuit board at a holder enables a voltage from an external power supply to be converted to a charging voltage for a mobile terminal, thereby realizing charging of the mobile terminal by means of the holder, and improving user experience.

Safety warning device

According to the technical scheme, the safety warning device is characterized in that the safety warning device comprises a main body, the two sides of the main body are rotationally connected with supporting plates respectively, and the two supporting plates are provided with a plurality of correlation type photoelectric switch emitters and correlation type photoelectric switch receivers respectively; a worker can arrange the main body at a house building construction engineering main body construction site, and a plurality of main bodies can be arranged around the construction site to form a closed loop; the correlation type photoelectric switch emitters and the correlation type photoelectric switch receivers on the two sides of the main body can be utilized to form a plurality of warning lines formed by the correlation type photoelectric switch emitters and the correlation type photoelectric switch receivers, and light emitted by the correlation type photoelectric switch emitters is ...

Medium-voltage distribution line lead protection wire clamp

The invention discloses a medium-voltage distribution line lead protection wire clamp, comprising: a buckle assembly comprising a clamping piece, a fixing block and a lock catch, the clamping piece being matched with the fixing block, the lock catch being connected with the clamping piece and being matched with the fixing block; and the clamping assembly is matched with the clamping piece. The device is simple to fix and can be adjusted according to region requirements, and the condition that the binding wire of the insulator is broken is avoided.

Titanium gypsum production raw material pretreatment method and system

The invention discloses a titanium gypsum production raw material pretreatment method and system, and relates to the technical field of titanium gypsum production control, and the method comprises the steps: obtaining a waste acid historical discharge time sequence, and analyzing and constructing a waste acid database; collecting target waste acid characteristics of the target waste acid, and traversing to obtain target matched waste acid; reversely matching the historical pretreatment scheme and taking the historical pretreatment scheme as a treatment scheme of the target waste acid; constructing a digital twin workshop of the target waste acid, and storing the digital twin workshop to a simulation cloud platform; performing simulation verification on the treatment of the target waste acid according to the historical pretreatment scheme to obtain a simulation treatment result; adjusting to obtain a target preprocessing scheme; the target titanium gypsum slurry is obtained. The problems ...

Intelligent production control method and system for alpha-type semi-hydrated gypsum

The invention relates to the technical field of production control, and provides an intelligent production control method and system for alpha-type semi-hydrated gypsum, and the method comprises the steps: collecting order demand information, and carrying out the demand analysis to obtain a demand analysis result; constructing a process flow set, matching process parameters, obtaining a process parameter matching result, crushing the raw material, collecting a crushing result image, and obtaining an image collection result; after crushing, performing autoclaving, drying and grinding treatment to obtain a ground raw material; the method comprises the following steps: carrying out secondary stir-frying on a ground raw material to obtain alpha-type semi-hydrated gypsum, carrying out quality determination to generate a quality determination result, generating feedback control parameters, and carrying out sub-parameter optimization to solve the technical problems of lack of objectivity in production ...

Improvement device of original state soil impact resistance survey

... 本实用新型公开了种原状土壤抗冲性测定的改进装置，包括个支架，支架上有个冲刷水槽，所述的冲刷水槽由上下两段组成，上段冲刷水槽为径流流速控制水槽，流速控制水槽连接有稳流池；下段冲刷水槽为坡度控制水槽，坡度控制水槽连接有土样槽和泥沙收集槽；流速控制水槽与坡度控制水槽之间通过可延展的塑料连接，在流速控制水槽和坡度控制水槽上，均设置有调节支架，用以调节流速控制水槽和坡度控制水槽的坡度。在试验过程中，可以通过分别调节流速控制水槽和坡度控制水槽的调节支架高度的方法实现分别设置多种试验冲刷流速和土样坡度的目的，增强了装置的适用性。 ...

Intelligent project settlement and completion settlement method, computer device and computer readable storage medium

The invention provides an intelligent engineering settlement and completion settlement method, a computer device and a computer readable storage medium. The method comprises the steps of automatically logging in an engineering settlement service system through an RPA robot and obtaining data of an engineering settlement project; an RPA robot automatically logs in an enterprise management system and enters a contract creating module, electronic contracts are created, and the RPA robot approves the created electronic contracts in batches according to rules of a service order; the RPA robot creates a procurement application, creates the procurement application according to the created capital construction, and generates a procurement application number; the RPA robot creates a receipt according to the created capital construction order and generates a material voucher number; and applying the RPA robot to execute a completion settlement step. The invention further provides a computer device ...

Agricultural land fertility increasing and soil heavy metal pollution repairing integrated agent and preparation method thereof

The invention relates to an agricultural land fertility increasing and soil heavy metal pollution repairing integrated agent and a preparation method thereof. The integrated agent comprises the following specific components: a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, trace elements and a heavy metal ion adsorbent. The preparation method comprises the following steps: adding the phosphate fertilizer and the potash fertilizer into a powder mixer, and mixing to obtain a mixture I; adding trace elements and a heavy metal ion adsorbent into the mixture I, and continuously mixing by adopting the powder mixer to obtain a mixture II; the method comprises the following steps: adding a nitrogen fertilizer into a stirring tank I with a heating device, and heating the nitrogen fertilizer to a molten state; transferring the mixed material II into a stirring tank I with a heating device, and quickly stirring to obtain a mixed material III; transferring the mixed material III ...

Grouting material for reinforcement and preparation method thereof

The invention discloses a grouting material for reinforcement. The grouting material is composed of a component A and a component B, the component A comprises isocyanate, a diluent, an emulsifier and superfine three-dimensional silver-zinc superfine powder; the component B comprises water glass, polypropylene short fibers and superfine three-dimensional silver-zinc superfine powder; the volume ratio of the component A to the component B is 1: 1. The grouting material provided by the invention can effectively reduce oil-water interfacial tension, has significantly improved tensile strength, compressive strength, bonding strength and other mechanical properties, has good antibacterial and antistatic capabilities, can be well used in reinforcement operations of coal mine rock masses, tunnel rock masses, hydropower stations and the like, ensures the strength of coal mine deposits and roofs, and has good application prospects. Accidents such as roof falling, roof falling and collapse of a coal ...

Micro-arc oxidation composite coating doped with fluorinated graphene and preparation method of micro-arc oxidation composite coating

The invention discloses a fluorinated graphene doped micro-arc oxidation composite coating and a preparation method thereof.The preparation method comprises the steps that fluorinated graphene is added into a strong alkali solution to be subjected to ultrasonic treatment, then deionized water is used for centrifugal cleaning for at least two times, then the fluorinated graphene is added into a mixed solution of a dispersing agent and the deionized water to be subjected to ultrasonic stirring, and the fluorinated graphene doped micro-arc oxidation composite coating is obtained; a mixed solution containing the modified fluorinated graphene is obtained; sodium silicate nonahydrate, potassium hydroxide and potassium fluoride are sequentially dissolved in deionized water, then the mixed solution containing the modified fluorinated graphene is added, and the electrolyte is prepared after even mixing; and a magnesium alloy workpiece subjected to pretreatment is placed in the electrolyte and serves ...

Method and system for testing accuracy of zero-flux current transformer

The invention discloses a method and system for testing the accuracy of a zero-flux current transformer, and belongs to the technical field of high-voltage electrical equipment. The method comprises the following steps: measuring first errors of two self-correcting zero-flux current proportion standard transformers TA and TB under various conditions based on an equal ampere-turn method; performing mutual verification on the TA and the TB on the basis of a pre-established mutual verification loop, verifying that the capacitive error and the magnetic error of the equal ampere-turn method meet the error limit value requirement of the pen transaction, and after verification is completed, measuring a second error of the TA and the TB under a preset transformation ratio on the basis of a pre-established test loop; and determining the accuracy of the TA and the TB based on the first error and the second error. According to the characteristic that the frequency characteristic of the zero-flux current ...

Core-shell structure of Gd - Si - Ce6 multifunctional mesoporous preparation method of composite material

... 本发明提供的是种核壳结构的Gd‑Si‑Ce6多功能介孔纳米复合材料的制备方法。采用几种经典的反应制备粒径均匀、分散性良好的空心有序介孔纳米材料；采用CTAB作为表面活性剂能够形成有序的介孔二氧化硅层，不仅为引入大量的功能分子团提供了较大的表面积，还为吸收和封装生物分子提供了较大的孔径；采用两种硅烷做前驱体合成了空心有序介孔结构纳米复合材料。所得复合材料内部具有环形空腔结构，可用于存储大量药物分子；表面具有层介孔二氧化硅层，可实现内外物质交换；在660nm激发光下可产生高效的单线态氧，可用于癌症的光动力治疗；制备过程绿色环保、原材料廉价、过程简单易行。 ...

Robot welding device based on sensor

The robot welding device based on the sensor comprises a bottom plate, a conveying device, a movable machining plate, a collecting box and a support, the conveying device, the collecting box and the support are all arranged on the bottom plate, a cleaning mechanism and a robot arm welding mechanism are arranged on the support, the movable machining plate is movably connected to the support, and a conveying belt is arranged on the conveying device; and more than two positioning strips are arranged on the conveying belt. According to the welding device, multiple cleaning can be conducted on workpieces, the first air cylinder and the second air cylinder control movement of the electric appliance base in the vertical direction and the horizontal direction, and therefore the welding head can weld the two workpieces; and when the electric appliance base moves upwards to reset, the two welded workpieces can be driven to slide into the collecting box along the inclined movable machining plate to ...