星空房（跑道型-4m）

电吹风

Steel beam attached integral hoisting type enclosure frame and construction method thereof

According to the steel beam attachment integral hoisting type enclosure frame and the construction method thereof, the enclosure frame supporting beams are connected with the profile steel beam stiffening batten plates, the outer stand columns and the inner stand columns through bolts correspondingly, and then the enclosure frame supporting beams and the structural profile steel main beams are integrally hoisted and installed on a building main body structure; before the steel bearing plate is laid, the enclosure frame can be rapidly installed only by fixing the walkway plate, the enclosure plate and the turning plate on the periphery of a floor through bolts, and the enclosure plate and the turning plate are both of a clamping groove type fixing structure and are rapid and convenient to disassemble and assemble. According to the designed enclosure frame, the risk in the installation process of the enclosure frame can be reduced, material waste is reduced, the labor cost of installation ...

Uncertainty guidance integrated self-training semi-supervised flow field reconstruction method

The invention discloses a semi-supervised flow field reconstruction method for uncertainty guidance integrated self-training. The method comprises the following steps: acquiring a plurality of pieces of labeled data and a plurality of pieces of unlabeled data; constructing a plurality of first deep learning models with different initialization model parameters and a second deep learning model with initialization model parameters; using the labeled data to train the plurality of first deep learning models; a plurality of trained first deep learning models are utilized to obtain a complete flow field corresponding to each piece of label-free data and uncertainty corresponding to the complete flow field, and an uncertainty weight corresponding to the uncertainty is calculated; pre-training a second deep learning model by using the label-free data and the corresponding complete flow field and uncertainty weight; and retraining the second deep learning model by using the labeled data. According ...

FREELY STOPPING MEDICAL CRANE

Disclosed is a freely stopping medical crane comprising a tank (2), a manual control mechanism (1) for controlling the location-movement or location-locking of the tank (2), a horizontal arm (3), a vertical arm (5), an elbow joint part (4) for the flexible connection of the horizontal arm (3) and the vertical arm (5), a rotation shaft (6) for the flexible connection of the vertical arm (5); the rotation shaft (6) connects flexibly to one end of the elbow joint part (4) via the vertical arm (5); the other end of the elbow joint part (4) connects flexibly to the tank (2) via the horizontal arm (3); the end parts of the tank (2) are arranged with the manual control mechanism (1). The freely stopping medical crane realizes the location-movement and free stopping and locking of the tank (2) during use by way of the manual control mechanism (1) performing a release process and an automatic reset and lock process, so as to ensure that the location of the freely stopping medical crane is stable ...

Adjustable arc-shaped wall surface base layer structure and mounting method thereof

The invention provides an adjustable arc-shaped wall surface base layer structure and a mounting method thereof.The adjustable arc-shaped wall surface base layer structure comprises an arc-shaped main wall body (1), an arc-shaped panel (2) and a keel frame (3) used for connecting the arc-shaped main wall body and the arc-shaped panel, and the keel frame comprises a plurality of keel assemblies (4) horizontally arranged at intervals in the height direction of the arc-shaped main wall body; the keel assembly comprises a plurality of keel units (5) which are connected in series, and the radian between every two adjacent keel units is adjustable. A rotating part (6) is arranged at one end of each keel unit, a rotating groove (7) is formed in the other end of each keel unit, and every two adjacent keel units are horizontally and rotationally connected through matching of the rotating parts and the rotating grooves. The sectional type keel units are convenient to transport and assemble, transition ...

Same-flow-direction efficient denitration treatment system

The invention belongs to the technical field of industrial waste gas treatment, and discloses a co-flow-direction efficient denitration treatment system, which comprises a physical and chemical treatment system and a biological treatment system, the Lihua treatment system comprises a dust remover, at least one co-flow-direction desulfurization and denitration tower, a dehydration demisting tower and a chimney which are sequentially communicated, the same-flow-direction desulfurization and denitrification tower comprises a tower body, a gas inlet, a gas outlet, a water inlet and a water outlet, the gas inlet and the water inlet are formed in the top of the tower body, and the gas outlet and the water outlet are formed in the bottom of the tower body; the tower body is internally provided with a plurality of thin-end-up circular-truncated-cone-shaped flow guide structures from top to bottom, a flow guide body used for guiding fluid to the outer side faces of the flow guide structures is arranged ...

RDF-BASED MODEL DIFFERENCE DATA MERGING METHOD, AND COMPUTER STORAGE MEDIUM

An RDF-based model difference data merging method, and computer storage medium. The method comprises: categorizing model difference data: categorizing model difference data into three classes, namely, addition, deletion, and modification; generating an RDF file according to the model difference data: establishing, according to the three classes of addition, deletion, and modification, corresponding namespaces, xmlns:add, xmlns:del, and xmlns:mod, respectively, organizing the model difference data as an RDF standard file, and establishing, in the RDF standard file, execution rules of the three classes of addition, deletion, and modification; parsing the RDF file: a power distribution network system automatically parsing the RDF file to obtain a model to be merged; verifying model difference data and merging: the power distribution network system verifying the model to be merged to obtained a filtered model to be merged, and merging the same with an existing system model.

2-OXO-1,2-DIHYDROPYRIDIN DERIVATIVE, PREPARATION METHOD THEREFOR AND MEDICAL USES THEREOF

The present invention relates to a 2-oxo-1,2-dihydropyridin derivative, a preparation method therefor and the medical uses thereof. Specifically, the present invention relates to the 2-oxo-1,2-dihydropyridin derivative of general formula (IG) or the prodrug thereof, the preparation method therefor, a compound containing the derivative or the prodrug thereof, as well as the uses thereof for inhibiting NaV and the uses thereof in preparing a drug for treating and/or preventing pains and pain-related diseases. Each substituent of general formula (IG) is the same as that defined in the description.

METHOD FOR PROCESSING AND KEEPING HIGH-QUALITY WET DOUGH FRESH

Provided are a high-quality wet dough, and a method for processing and keeping same fresh, falling within the field of flour product processing. The formula for the wet dough comprises: 90-100 parts of wheat flour, 33-40 parts of slightly acidic electrolyzed water, 0.5-1 parts of monosodium fumarate, 0.04-0.24 parts of sodium lactate, 0.10-0.15 parts of propanediol, 0.10-0.15 parts of a sorbitol solution, and 0.40-2.40 parts of a composite phosphate, wherein the addition amount of the slightly acidic electrolyzed water is 33-40％ that of the mass of the wheat flour. The method for processing and keeping the wet dough fresh uses 33-40％ of the slightly acidic electrolyzed water in combination with a high-temperature and high-moisture dewatering to greatly reduce the initial bacteria quantity in the wet dough and to ensure the good texture property of products, and the method can effectively prolong the shelf life of the wet dough, and same can be stored for 2-3 months at 4-10°C.

Integrated energy system day-ahead scheduling method and system considering source load uncertainty

The invention relates to the technical field of integrated energy system prediction scheduling, provides an integrated energy system day-ahead scheduling method and system considering source load uncertainty, and aims to solve the problem of inaccurate prediction data caused by the uncertainty of source load data in the prior art. The prediction precision of subsequent point prediction on the decomposition sequence is improved, then probability prediction is performed through the residual error of the point prediction result, the uncertainty of the source load original data which is not captured by the decomposition method in the data preprocessing process can be captured, and the uncertainty is quantized, so that the prediction accuracy of the decomposition sequence is improved. A probability prediction interval reflecting uncertainty is superposed on a better point prediction sequence, so that an interval result of mixed probability prediction is obtained, the prediction performance is ...

Motor using rotor and method for calculating trend of gap between rotor and stator

The invention relates to the technical field of mechanical and electric power facilities, in particular to a motor using a rotor and a method for calculating the trend of a gap between the rotor and a stator, the surface of a power sensor is fixedly connected with a magnetic sensor, the surface of the motor is fixedly connected with a temperature sensor, and the surface of the motor is fixedly connected with a vibration sensor. The surface of the motor is fixedly connected with a rotor, the surface of the rotor is fixedly connected with rotor sheets, the rotor sheets comprise a first rotor sheet group, a second rotor sheet group and a third rotor sheet group, the surfaces of the rotor sheets are provided with cast aluminum grooves, and the interiors of the cast aluminum grooves are fixedly connected with aluminum strips. According to the invention, the aluminum casting groove is formed by the plurality of stacked and fixed rotor sheets, the rotor grooves of the rotor sheets are communicated ...

Novel liquid crystal screen edge covering adhesive manufacturing process

The invention discloses a novel liquid crystal screen edge-covering adhesive and an edge-covering adhesive coiled material. The edge-covering adhesive coiled material comprises a reinforcing film, and a plurality of pre-cut bottom films are adhered to one surface of the reinforcing film at equal intervals. According to the novel liquid crystal screen edge-covering adhesive manufacturing process, the reinforcing film is additionally arranged at the bottom of the pre-cut bottom film, the reinforcing film eliminates the influence of a cutting die and a cutting mark on an edge-covering adhesive coiled material, the problem that the edge-covering adhesive coiled material is snapped due to the cutting mark of the bottom film is avoided, material breakage is avoided, manufacturing process loss is reduced, even if the cutting mark exists on the pre-cut bottom film, the reinforcing film can also provide enough tensile force, and the service life of the edge-covering adhesive coiled material is prolonged ...

Mortise and tenon joint type rapid installation and assembly type wall surface system and installation method thereof

The invention provides a tenon-and-mortise type rapid installation and assembly type wall surface system and an installation method thereof, and belongs to the technical field of wall surface installation. The tenon-and-mortise type rapid installation and assembly type wall surface system comprises an internal corner connecting piece, an external corner connecting piece, a flush joint connecting piece, two internal corner wall plates and two external corner wall plates. The two ends of an internal corner connecting plate are bonded to a first internal corner connecting groove of a first internal corner wall plate and a second internal corner connecting groove of a second internal corner wall plate correspondingly, and the two ends of a flush joint connecting plate are bonded to a first internal corner connecting groove of the second internal corner wall plate and a second external corner connecting groove of a first external corner wall plate correspondingly; the two ends of one external ...

Edge network data packet header compression transmission method and system based on label switching

The invention discloses an edge network data packet header compression transmission method and system based on label switching. The method comprises the following steps: creating an MPLS domain and a label forwarding table for an edge network; the entry end node constructs a label path establishment request with an MPLS label or a compressed data packet for the IP data packet and transmits the request or the compressed data packet to the next hop node; and the network node establishes a label switching path according to the label path establishment request message, stores the fixed information of the data flow, and forwards the data flow or recovers the IP data packet according to the stored fixed information of the data flow. According to the invention, the label technology of MPLS is applied to the edge network, a data packet header compression method is designed by using a label switching mechanism, the method is suitable for compression transmission of IPv4/IPv6 data packets in the ...

Liquid cooling system with automatic liquid collecting capability

The invention discloses a liquid cooling system with an automatic liquid collecting capability, which comprises a liquid cooling unit, liquid cooling equipment and liquid collecting equipment, and is characterized in that the liquid cooling unit is connected with the liquid cooling equipment through a cooling liquid input pipeline and a cooling liquid output pipeline. According to the liquid cooling device, through the arrangement of the air supplementing assembly, external air can be supplemented into the liquid cooling device after the internal pressure of the liquid cooling device is smaller than the atmospheric pressure, and due to the fact that the air continuously enters the liquid cooling device through the high position of the device in the liquid collecting process, it can be guaranteed that the absolute pressure of the air inlet is maintained at about one atmospheric pressure; a large pressure difference value is formed between the air inlet and the inlet of the liquid collecting ...

PYRROLE SULFONAMIDE DERIVATIVE, PREPARATION METHOD FOR SAME, AND MEDICAL APPLICATION THEREOF

The present invention relates to a pyrrole sulfonamide derivative, a preparation method for same, and a medical application thereof. Specifically, the present invention relates to a novel pyrrole sulfonamide derivative as represented by formula (I), a preparation method for the derivative, a pharmaceutical composition comprising the derivative, and uses of same as therapeutic agents, and particularly as a gastric acid secretion inhibitor and potassium-competitive acid blockers (P-CABs), where each substituent of formula (I) is as defined in the description.

Formaldehyde-removing PVC film additive and preparation method thereof as well as formaldehyde-removing PVC film and preparation method thereof

The invention provides a formaldehyde-removing PVC film additive and a preparation method thereof as well as a formaldehyde PVC film and a preparation method thereof, and belongs to the technical field of chemical synthesis. The formaldehyde-removing PVC film additive is iron and nitrogen-doped modified titanium dioxide, the modified titanium dioxide serves as a photocatalyst to catalyze formaldehyde decomposition, and the light sensitivity of nano titanium dioxide can be improved by doping Fe and N, so that the catalytic ability of the nano titanium dioxide is improved. The formaldehyde-removing PVC film comprises the following components: PVC resin powder, a plasticizer, a coupling agent, a stabilizer, diatomite powder, a formaldehyde-removing PVC film additive, chromic acid, graphene powder, a lubricant and a flame retardant. In the preparation method of the formaldehyde-removing PVC film, plastication-calendering is adopted to prepare the film, the prepared film maximally protects the ...

Multi-element external electron donor composition and application thereof

The invention provides a multi-element external electron donor composition and application thereof. The multi-element external electron donor composition comprises at least one first external electron donor as shown in the following formula (I) and at least one second external electron donor as shown in the following formula (II); the molar ratio of the first external electron donor to the second external electron donor is (1: 99)-(99: 1): 1; ...

ROTOR FOR SYNCHRONOUS RELUCTANCE MACHINE

Disclosed by the present invention is a rotor for a synchronous reluctance machine. The rotor is provided with magnetic barriers in the d-axis direction and the q-axis direction, the radius of the rotor is set as R, the width of the magnetic barriers is set as B0, and the number of the magnetic barriers is set as n, wherein 0.3*R≤n*B0≤0.5*R. The present invention provides a rotor for a synchronous reluctance machine, and the rotor enables the synchronous reluctance machine to have the advantages of high output torque and low torque ripple, and the rotor of this structure is easy to process and can be mass-produced.

Assembly type suspended ceiling air opening mounting structure and mounting method

The invention relates to the field of building decoration, in particular to an assembly type suspended ceiling air opening installation structure and method.The installation structure comprises a supporting keel, connecting hanging pieces, air opening fixing pieces, air openings, a decoration panel and a reinforcing plate, the multiple connecting hanging pieces are hung on the supporting keel, and the two air opening fixing pieces are inserted into the lower portions of the connecting hanging pieces; tuyeres are mounted between the tuyere fixing pieces, reinforcing plates are arranged at the upper ends of the tuyeres, and decorative panels are further connected to the lower ends of the tuyere fixing pieces; compared with the prior art, the connecting hanging pieces are connected to the supporting keel in a hung mode, the air opening fixing piece is connected with the connecting hanging pieces, the reinforcing plate is further arranged at the upper end of the air opening, the exposed part ...

Method for completing communication between entrance machine and indoor machine based on Ethernet communication protocol

The invention provides a method for completing communication between entrance machines and indoor machines based on an Ethernet communication protocol. The method comprises the following steps: S1, determining periodic confirmation states of all the entrance machines and all the indoor machines based on a multi-terminal topological graph of all the entrance machines and all the indoor machines in a building; s2, sending an access data packet to a target access indoor unit in an access instruction based on the periodic confirmation states of all the entrance machines and all the indoor units and the access instruction received by the entrance machines in real time; s3, when the target access indoor unit receives the access data packet, establishing a target communication link between the corresponding entrance machine and the target access indoor unit based on a matching analysis result of the access data packet and all historical access data packets received by the target access indoor ...

Road roadbed disease intelligent monitor with wireless transmission function

The invention discloses a road roadbed disease intelligent monitor with a wireless transmission function, which is characterized in that the monitor is composed of a data conversion and transmission device, a telescopic device and a stress device, and the data conversion and transmission device is composed of an analog-to-digital converter, a wireless transmission module, a force/displacement sensing module and a power supply; the telescopic device is composed of a telescopic spring, an upper piston and a lower piston. A force/displacement signal of the displacement change of the stress device is converted into an electric signal through the force sensing module, and the electric signal is wirelessly transmitted to a terminal through the wireless transmission module, so that intelligent monitoring and early warning of road roadbed diseases are realized. Compared with the prior art, the device has the advantages of timely and accurately obtaining the change condition of the soil body of ...

Lower limb equal-length muscle force measuring device

The invention discloses a lower limb equal-length muscle force measuring device which comprises a base plate, a chair, force measuring columns, foot force measuring components and thigh force measuring components, and a circuit board and a signal line are arranged below the base plate; the force measuring columns are symmetrically distributed on the upper portion of the base plate in a shape like a Chinese character 'tian', and tension sensors A are arranged in the force measuring columns and connected with clasps and short tension ropes; the foot force measuring components are symmetrically arranged on the base plate, the foot force measuring components are provided with tension and compression sensors in the base plate, a plantar pressure plate is arranged above each of the tension and compression sensors, and foot bandages are fixed to the two sides of each plantar pressure plate; the thigh force measuring components are symmetrically arranged on the base plate, the thigh force measuring ...

METHOD AND DEVICE FOR STORING AND READING A MESSAGE, SERVER, AND STORAGE MEDIUM

The present application discloses a method and device for storing and reading a message, a server, and a storage medium, pertaining to the technical field of communications. The method comprises a message storage method applicable to a Kafka cluster. The message storage method comprises: receiving a first message storage request for storing a message in a Kafka cluster, wherein the first message storage request specifies that a message specified by the first message storage request is stored at a virtual storage address, and the virtual storage address comprises a virtual topic identifier and a virtual partition identifier; determining, on the basis of correspondence between the virtual storage address and a first real storage address, a first real storage address corresponding to the virtual storage address, the first real storage address comprising an identifier of a first real topic and an identifier of a first real partition; and storing the message specified by the first message storage ...

A high-molecular sheet-progressive forming limit test method

... 本发明属于高分子板料渐进成形领域，具体涉及种高分子板料渐进成形极限测试的方法，本发明先利用球形弧面回转体曲面件加工来明确高分子板材成形起皱失效的大致角度范围，然后再利用锥形件逼近最终确定渐进成形极限。本发明与现有技术相比，具有以下有益效果：本发明定义了高分子板料起皱作为渐进成形失效的判定标准，即板料成形发生起皱即达到了板材的成形极限；将球形弧面回转体零件与锥形件逼近加工相结合，极大地减少了高分子板料成形极限角测量的工作量；弥补了传统以破裂作为渐进成形失效依据的不足，提出了种高分子板料渐进成形极限角精确测量方法；有利于渐进成形技术在高分子板材加工中的推广应用。 ...

Antibacterial mildew-proof impregnating adhesive for decorative paper and preparation method of antibacterial mildew-proof impregnating adhesive

The invention belongs to the technical field of special paper manufacturing, and particularly relates to an antibacterial mildew-proof impregnating adhesive for decorative paper and a preparation method of the antibacterial mildew-proof impregnating adhesive. The antibacterial and mildew-proof impregnating adhesive for the decorative paper comprises acrylic resin, polyurethane, a cross-linking agent, a curing agent, a flatting agent, an antibacterial and mildew-proof agent and water. The environment-friendly water-based acrylic resin and the polyurethane are compounded to serve as main raw materials, the performance requirements of the cladded decorative paper for the surface hardness and the material toughness are balanced, meanwhile, the content of formaldehyde in the finished decorative paper is reduced, and after the broad-spectrum antibacterial agent with the excellent heat resistance is added, the heat resistance of the decorative paper is improved. When the prepared impregnating ...

Detachable waterproof door for transformer substation

The detachable waterproof door comprises a waterproof base and mounting stand columns, a mounting groove is formed in the top of the waterproof base, the mounting stand columns are fixedly mounted at the two ends of the mounting groove, a waterproof sealing gasket is arranged in the mounting groove, and a bottom baffle, a middle baffle and a top baffle are sequentially arranged between the two mounting stand columns from bottom to top; the top baffle is limited and fixed by a limiting fixing rod, so that the bottom baffle, the middle baffle and the top baffle are tightly combined; the combined type waterproof door structure is convenient to disassemble and assemble, the assembled bottom baffle, middle baffle and top baffle form a whole, waterproof sealing of the joints is achieved through sealing bosses and sealing grooves at the joints, meanwhile, a plurality of water level detection sensors are arranged in the combined type waterproof door structure and connected with a control system ...

Parking space evaluation method, system and device based on laser radar and medium

A parking space evaluation method, system and device based on a laser radar and a medium are realized based on the laser radar and a light reflection module, and the method comprises the steps: setting the light reflection module at a parking space corner of a test scene, and collecting laser radar data and parking space detection data; performing three-dimensional reconstruction of a test scene by adopting a slam algorithm based on the laser radar data to obtain positioning data and a point cloud map; based on the pose of the slam algorithm, the parking space coordinates of the parking space detection data are converted into global coordinates, and a parking space detection result is obtained through calculation; based on a preset light reflection intensity threshold value, point cloud data of a light reflection module in the point cloud map are extracted, the point cloud data of the light reflection module are clustered, and weighted average is carried out on an obtained clustering result ...

Semiconductor chip processing technology with high-temperature characteristic

The invention relates to the technical field of semiconductor chip production and processing, and discloses a semiconductor chip processing technology with a high-temperature characteristic, which comprises the following steps: step 1, taking a proper amount of silica sand, heating at high temperature to separate carbon monoxide and silicon in the silica sand, melting high-purity silicon into liquid, cooling and solidifying into a single crystal solid form to obtain a silicon column, the method comprises the following steps of: cutting a silicon column into slices, marking a flat area or a dent, removing surface flaws through grinding and chemical etching processes, polishing, and finally cleaning to remove residual pollutants to obtain a finished wafer. The cleaned finished wafer is placed at a high temperature, steam is added for thermal oxidation, and an oxide layer is formed on the surface of the wafer, so that in the whole machining process, wet oxidation is used for surface protection ...

Feeding device of punching machine

The invention relates to the technical field of punching machines, in particular to a punching machine feeding device which comprises a mounting cabinet, a material storage mechanism, a material moving mechanism and a driving mechanism, the material storage mechanism comprises a mounting plate, at least two material storage modules are arranged on the mounting plate, each material storage module comprises a plurality of mounting columns, and the mounting columns are arranged on the mounting plate in a circumferential array mode; the material moving mechanism comprises a moving frame, three suction cup modules are arranged on the moving frame, the driving mechanism is arranged on the mounting cabinet and used for driving the moving frame, and a containing table is arranged at the position, corresponding to the suction cup modules, of the top of the mounting cabinet. The device has the advantages that the stacked materials can be separated, the suction cup can suck the materials conveniently ...

DATA MONITORING METHOD AND DEVICE, COMPUTER DEVICE, AND STORAGE MEDIUM

A data monitoring method and device, a computer device, and a storage medium. The data monitoring method comprises: acquiring correlations between different data tables under application environments in a database, creating a data correlation table (S1); receiving table information of a data table to be monitored (S2); using, on the basis of the table information, a preset script to acquire table structure data of the data table to be monitored (S3); if the table structure data of the data table to be monitored is detected to have changed, then recording change information (S4); acquiring from the data correlation table an association data table associated with the data table to be monitored of which the table structure data has changed, verifying whether the table structure data of the association data table is correct on the basis of the change information (S5); and if the table structure data of the association data table is incorrect, then outputting error information (S6). The method ...

FIXING DEVICE FOR MEDICAL POSITION-RESTRAINING BELT

A fixing device for a medical position-restraining belt, the fixing device being used to fix the medical position-restraining belt to the side rails (5) of an operating table, and to release the medical position-restraining belt from the side rails (5) of the operating table; the fixing device of the medical position-restraining belt comprises an upper clamping piece (1), a lower clamping piece (2) and an elastic piece (4); the upper clamping piece (1) or the lower clamping piece (2) is connected to the medical position-restraining belt; the upper clamping piece (1) and the lower clamping piece (2) are respectively provided with a clamping portion (11, 21) for clamping onto the side rails (5) of the operating table; two ends of the elastic piece (4) respectively press against or are respectively fixed to the upper clamping piece (1) and the lower clamping piece (2); the fixing device for the medical position-restraining belt can be in a clamping state and an open state; in the clamping ...

ZERO SELF-LEARNING METHOD FOR POSITION SENSOR OF SYNCHRONOUS RELUCTANCE MOTOR

A zero self-learning method for a position sensor of a synchronous reluctance motor, comprising the following steps: step 1: determining the position of a motor, and controlling current to lock a d-axis position of the motor; step 2: determining a Z signal position, controlling the motor to rotate by means of an open loop, detecting an A signal, a B signal, and a Z signal by using a TI chip; step 3: detecting a UVW signal phase sequence, and detecting a UVW signal by using the TI chip; step 4: detecting the Z signal, setting to trigger a latch mechanism when the Z signal is detected, clearing the value stored in a counting result register QPOSCNT, and setting the QPOSCNT to be zero; and step 5: obtaining an offset angle between the zero and the d-axis. The zero self-learning method for a position sensor of a synchronous reluctance motor implements the correction of the d-axis position. Moreover, the method is simple to implement, and the correction precision of a θ angle calculated accordingly ...

Fibula far-end outer side locking bone fracture plate and processing method thereof

The invention provides a fibula far-end outer side locking bone fracture plate and a machining method thereof. The machining method comprises the steps that a blank material is heated and then placed in a profiling mold to be subjected to compression molding, and a semi-finished product is obtained; and the semi-finished product and the tool clamp are fixed to a machining center, the semi-finished product is fixed in the tool clamp, the machining center is started, the semi-finished product is milled, and the fibula far-end outer side locking bone fracture plate is obtained. In the machining method, according to the material and structure requirements of a bone fracture plate product, the corresponding profiling mold and the machining center are adopted for sequentially conducting hot press forming and milling machining, so that the problem that cutting is difficult when milling machining is completely adopted is avoided, the milling amount is greatly reduced, and the utilization rate of ...

Energy storage resonant cavity tuning structure of SLED pulse compression system

The invention relates to an SLED pulse compression system energy storage resonant cavity tuning structure, which comprises a resonant cavity and a tuning device, and is characterized in that a coupling hole for energy injection is formed in the left side end surface of the resonant cavity; the tuning device comprises a tuning piston coaxially communicated with the resonant cavity through the right end face of the resonant cavity and a vacuum sealing part used for preventing the tuning piston from making contact with outside air. The tuning piston comprises a piston sleeve with the inner diameter smaller than the minimum inner diameter of the resonant cavity, a piston slidably arranged in the piston sleeve and a piston rod used for driving the piston to move, and the tail end of the piston rod is fixed to the right side of the vacuum sealing part; the vacuum sealing part can stretch out and draw back left and right and drive the piston rod to move, so that the position of the piston in the ...

Expressway driving integral circulation system based on block chain

The invention relates to the technical field of communication, in particular to an expressway driving integral circulation system based on a block chain, and the system comprises a registration module which is used for the information registration, registration and contract signing of a user and a merchant; the block chain service module is used for storing registration module data, a block chain consensus node and a block chain read-only node into a system block chain, and is used for receiving transaction data so as to complete encryption, signature, verification, consensus, query and storage of the data; the block chain interface module is used for providing an API (Application Program Interface) so as to process the driving integral; and the block chain application module is used for access of the user and each merchant, so that the user and the merchant carry out integral operation through the block chain interface layer. According to the expressway driving integral circulation system ...

Synthesis process of 5-hydroxymethyl nicotinonitrile

The invention relates to a synthesis process of 5-hydroxymethyl nicotinonitrile, which comprises the following steps: preparing a Grignard reagent by using chloroisopropane as an initial raw material, and reacting with 3, 5-dibromopyridine to obtain 5-bromo-3-pyridylaldehyde; carrying out reduction through sodium borohydride to obtain 5-bromo-3-pyridinemethanol; 5-hydroxymethyl nicotinonitrile is obtained through cyanation reaction, and recrystallization is carried out through isopropanol and heptane in the final purification process. The cyanation reagent is potassium ferrocyanide, compared with a traditional cyanation reagent, the potassium ferrocyanide is non-toxic, the reaction system is simple, expensive catalysts, ligands and the like do not need to be added, pollution to the environment is small, and the synthesis process is simple, low in reaction condition requirement, few in steps, high in yield, simple in aftertreatment and suitable for industrial production.

Pressure testing method and system based on pressure testing platform, medium and equipment

The embodiment of the invention discloses a pressure testing method based on a pressure testing platform, the platform, a medium and equipment, and the method comprises the steps: receiving the equipment testing information of to-be-tested equipment, and generating at least one testing task according to the equipment testing information; test scripts are created, the test scripts are added to all the test tasks, and the test scripts comprise a local test script and a remote test script; according to the local test scripts, uploading the remote test scripts to the corresponding test auxiliary equipment; each test auxiliary device is controlled to run the corresponding remote test script according to a test mode in the remote test script so as to test the to-be-tested device, and the test mode comprises test start time, a test period and test times; and after each remote test script is operated, obtaining a test result. By adopting the embodiment of the invention, the to-be-tested equipment ...

Novel die cutting manufacturing process

The invention discloses a novel die cutting manufacturing process which comprises a product roll film, the product roll film comprises a double-faced adhesive tape, a tearing handle end is arranged on the double-faced adhesive tape, original self-carried release paper is adhered to the upper surface of the double-faced adhesive tape, the double-faced adhesive tape is arranged on the original self-carried release paper, and a round hole is formed in the original self-carried release paper. According to the novel die cutting manufacturing process, the cutting die A punches a tearing handle on the double-faced adhesive tape to be half-cut to release paper of an original factory, the cutting die B directly punches a finished product to be half-cut to light release paper (film), namely the double-faced adhesive tape with the tearing handle is directly punched under the cooperation of the cutting die A and the cutting die B, the productivity and efficiency are high, the reliability is stable, ...

Insert tool device suitable for liquid nitrogen cold distribution installation

The insert tool device comprises a bottom plate, an auxiliary support is fixedly connected to the back face of the top of the bottom plate, a workpiece is placed on the bottom plate, an insert cooled through liquid nitrogen is inserted in the workpiece, an air cylinder is embedded in the auxiliary support, and the air cylinder is fixedly connected with the auxiliary support. A piston rod of the air cylinder is fixedly connected with a pressing plate, the insert is located below the pressing plate, two sets of vertical plates are symmetrically and fixedly connected to the bottom plate in the left-right direction, auxiliary assemblies used in cooperation with a workpiece are arranged on the vertical plates, and multiple positioning assemblies used in cooperation with the workpiece are arranged on the bottom plate and the vertical plates. By arranging the multiple positioning assemblies and utilizing a multiple and multi-angle positioning mode, the overall stability of the workpiece is improved ...

Quality detection method of musk or musk extract for treating acute ischemic stroke

The invention belongs to the technical field of quality detection of medicinal materials, and particularly relates to a quality detection method of musk or a musk extract for treating acute ischemic stroke. According to the invention, the material basis of the traditional Chinese medicinal material musk for treating acute ischemic stroke is researched by a network pharmacology method; on the basis, quality detection is carried out by detecting the content of the following chemical components in the musk or the musk extract: at least one of muscone, p-cresol, tetrahydropyran-2-methanol, octanoic acid, dehydroepiandrosterone, hydroxycitronellal, Hydnocarpic acid, cyclopentadecanone or delta-nonanolactone. By utilizing the quality detection method disclosed by the invention, the musk extract, the musk medicinal material or the musk processed product with a better treatment effect on acute ischemic stroke can be effectively selected, and the quality detection method has a very good prospect ...

Vibration stability detection system and method for rail transit vehicle

The invention discloses a vibration stability detection system and method for a rail transit vehicle. The method comprises the following steps: acquiring a vibration signal of the rail transit vehicle in a preset time period; and mining relevance feature distribution information of each hidden feature in the vibration signal of the rail transit vehicle by adopting an artificial intelligence technology based on deep learning so as to accurately evaluate and detect the vibration stability of the rail transit vehicle. Therefore, the running state of the rail transit vehicle can be accurately monitored, and the problems of over-repair, under-repair, even post-repair and the like are avoided.

Method for detecting purity of lactobionic acid in erythromycin lactobionate preparation process

The invention discloses a method for detecting purity of lactobionic acid in a preparation process of erythromycin lactobionate, which comprises the following steps: establishing a linear regression equation between conductivity and concentration of a sodium lactobionate solution, and deducing a relational expression between theoretical concentration of lactobionic acid and conductivity; detecting the actual concentration of lactobionic acid by using a titration method; measuring the conductivity of the titrated solution, and calculating the theoretical concentration of lactobionic acid according to the relational expression; the ratio of the actual concentration to the theoretical concentration is the purity. According to the detection method, the purity of lactobionic acid after cation exchange can be detected in real time, the numerical value of the lactobionic acid is ensured to be above the standard, erythromycin lactobionate with stable quality can be prepared, and the medication ...

Method for preparing sheet tobacco shreds through rolling method and tobacco shreds

The invention discloses a preparation method of sheet tobacco shreds by a rolling method, which comprises the following steps: 1) crushing a tobacco raw material to obtain tobacco powder; 2) mixing the tobacco powder with an auxiliary reagent to prepare a bulk mixture; the auxiliary reagent comprises an atomizing agent, a binder, additional fibers, modified starch, nano cellulose and water; 3) pre-pressing the bulk mixture to prepare a sheet; 4) rolling the sheet for forming; (5) drying, shaping and shredding the rolled slices; and 6) flexibly drying the tobacco shreds to obtain the tobacco shreds. According to the preparation method of the rolling-method sheet tobacco shreds, the problems that rolling-method sheets are large in strength difference in the longitudinal and transverse directions and prone to breakage can be fully and effectively solved, the consistency and stability of the moisture content of the sheets can be guaranteed, irritation and offensive odor of the sheets are reduced ...

PREFILLED SYRINGE FILLING MACHINE

A prefilled syringe filling machine comprises an outer bag dismounting area (1), an inner bag dismounting area (2), a filling plugging area (3), a rubber plug buffering area (4) and a conveying belt (5). The conveying belt (5) penetrates through the inner bag dismounting area (2) from the outer bag dismounting area (1). The filling plugging area (3) is arranged closely adjacent to the inner bag dismounting area (2). A first transferring device (7) is arranged in the inner bag dismounting area (2). A second transferring device (8) is arranged in the filling plugging area (3). A material handing-over port (6) is arranged between the filling plugging area (3) and the inner bag dismounting area (2). During work, the first transferring device (7) transfers materials on the conveying belt (5) to the material handing-over port (6) so as to hand over the materials to the second transferring device (8). The second transferring device (8) lifts the materials to finish filling plugging, then the materials ...

Charcoal heating cigarette

The invention discloses a charcoal heating cigarette which comprises an ignition section (1), a charcoal source section (2), an atomization section (3) and a filter tip section (4), the charcoal source section (2) is located between the ignition section (1) and the atomization section (3), and the other end, away from the charcoal source section (2), of the atomization section (3) is connected with the filter tip section (4); the ignition section (1) comprises tobacco shreds (11) and is used for igniting the carbon source section (2). According to the carbon heating cigarette, the ignition section comprising the tobacco shreds is arranged to ignite the carbon source section, the problems that the carbon source section is not easy to ignite, and the use experience of consumers is affected are solved, and the use experience of the carbon heating cigarette is improved.

Container bottom plugging device

The invention relates to the field of plug adding, in particular to a container bottom plug adding device which comprises a plug arranging assembly, a plug feeding assembly, a plug conveying assembly, a plug ejecting assembly and an abutting piece. Containers abut against the abutting piece, stable operation of the plug adding process is facilitated, meanwhile, the containers can be combed through the abutting piece, it is guaranteed that the containers are located at the same position height, plug adding is facilitated, the plug adding efficiency is effectively improved, and the plug adding efficiency is improved. Meanwhile, plugging force is neutralized and dispersed in the axis direction of the container under the action of the abutting piece, the bottle breaking rate in the plugging process is effectively reduced, and the production efficiency and quality are greatly improved.

Data and physics dual-drive aircraft complex geometric region temperature field prediction method

The invention discloses a data and physics dual-drive aircraft complex geometric region temperature field prediction method, which comprises the following steps: parameterizing the boundary of an aircraft complex geometric region of which the temperature field is to be solved, and obtaining coordinate parameters of control nodes of the boundary; inputting the coordinate parameters into a pre-trained grid generation model, and obtaining coordinate parameters of all grid nodes in a corresponding rule calculation domain; inputting the coordinate parameters into a pre-trained temperature field prediction model to obtain a corresponding rule computational domain temperature field; and according to the obtained regular calculation domain grid node coordinate parameters and the regular calculation domain temperature field, and a preset mapping relation between coordinates in the complex geometric region and coordinates in the regular calculation domain, obtaining a complex geometric region temperature ...

BASE TRANSCEIVER STATION AND STATIC DATA CONFIGURATION METHOD FOR BASE TRANSCEIVER STATION

The present invention relates to communication technology. Disclosed are a base transceiver station (BTS) and static data configuration method for the BTS. When the BTS meets a condition requiring static data configuration, the BTS enters an air interface based BTS activation mode so that a mobile station (MS) can be connected to the BTS; the BTS receives static data configuration information transmitted by the MS, parses the static data configuration information and completes static data configuration; thus realizing static data configuration for the BTS via the air interface communication of an MS.

WATER USAGE PATTERN-BASED USER PROFILING METHOD AND SYSTEM

A water usage pattern-based user profiling method and system, comprising the following steps: (1) collecting water usage data and a user type label of a user; (2) extracting from the collected water usage data the average water usage of several periods to serve as eigenvectors, combining with the type label of the user to construct a training sample set, constructing a depth-stratified fuzzy system on the basis of an automatic machine learning technique, utilizing the training sample set to train the system, thus constructing a classification model; and (3) inputting the collected water usage data of the user into the constructed classification model, thus completing user profiling. The method, by means of user profiling, combines characteristics of individual users and user groups, thus providing individual users with a service of increased accuracy, and implementing a reasonable allocation of resources between areas.

Embedment syringe liquid filling machine in advance

... 本实用新型公开了一种预灌封注射器灌装机，包括拆外包区、拆内包区、灌装加塞区、胶塞缓冲区和输送带，所述输送带穿设于所述拆外包区和拆内包区之间，所述灌装加塞区紧邻所述拆内包区设置，所述拆内包区内设有第一转运装置，所述灌装加塞区内设有第二转运装置，所述灌装加塞区与所述拆内包区之间设有物料交接口，所述第一转运装置可在所述物料交接口处与第二转运装置对接并在所述物料交接口与所述输送带与之间转运物料，所述第二转运装置可在所述物料交接口处与第一转运装置对接并在所述灌装加塞区内转运物料。本实用新型具有结构简单、能有效降低药品污染风险等优点。 ...

Floating bag inflating and deflating device

The invention provides a floating bag inflation and deflation device. The floating bag inflation and deflation device comprises an air source, a switch air valve and a deflation valve. The switch air valve is connected with the air source, and the deflation valve is connected with the switch air valve; the valve body is provided with an inner cavity, the valve body is connected with the switch air valve, and an air outlet is formed in the valve body; the piston type valve element is arranged in the inner cavity, and the piston type valve element blocks the first air channel. After the electric detonator is exploded, expansion gas is generated to push the piston type valve element to move along the inner cavity, the first gas circuit is exposed to be communicated with the gas discharging port, and gas flows out of the gas discharging port. The gas is detonated by the electric detonator to push the piston type valve element, so that the gas of the gas source enters the first gas path and ...

INDOOR ENVIRONMENT HEALTH DEGREE REGULATING METHOD AND SYSTEM BASED ON MACHINE VISION

An indoor environment health degree regulating method and system based on machine vision. The method comprises the following steps: (1) collecting facial data of a person, and applying independent vector analysis to analyze a periodic signal from the facial data to detect the heart rate; (2) preprocessing heart rate data collected in a health environment to construct an environment health degree language word model; and (3) comparing heart rate data collected in an actual environment with data in the constructed environment health degree language word model to determine whether the environment is healthy or not.

Smooth starting method and system for V/F control of electrically excited synchronous motor

The invention discloses a smooth starting method and system for V/F control of an electrically excited synchronous motor, relates to a motor control technology, and solves the problems of asynchronous starting, large current fluctuation and easy overcurrent during starting due to the fact that the initial position of a rotor cannot be positioned through open-loop control. Collecting three-phase induced electromotive force of a stator, and calculating an initial angle of a rotor; when the electro-magnetic synchronous motor enters an I/F control stage, three-phase current and voltage of the electro-magnetic synchronous motor are collected, and the rotating speed and torque current are adjusted through double-closed-loop control; when the running rotating speed reaches a set switching rotating speed, calculating an output voltage amplitude through a smoothing function mathematical model, and entering a V/F control stage; according to the method, the initial angle of the rotor is observed, ...

Coding and decoding structure semantic segmentation model based on tensor and second-order covariance attention mechanism

The invention discloses a coding and decoding structure semantic segmentation model based on a tensor and a second-order covariance attention mechanism. The method comprises the following steps: 1, model establishment: designing a coding and decoding structure semantic segmentation model based on a tensor and second-order covariance attention mechanism, learning the relevance between pixel point image features by using the attention mechanism in a coder, and enhancing deep semantic information, and fusing the shallow semantic information and the deep semantic information in a decoder to capture the context semantic information of the image so as to enlarge the inter-class difference of different classes of objects. 2, model training: firstly preprocessing a data set, and then performing model training on an established model; and 3, model reasoning: inputting the images of the test set into the trained model, reasoning the semantic category prediction value of the test images, and evaluating ...

Conveyor for embedment in advance

... 本实用新型公开了一种预灌封用输送装置，包括输送网带和同步带轮轴，输送网带卷绕在同步带轮轴的轮体上，还包括动力单元和锥齿轮组，动力单元布设在输送网带对接端的下方、且动力单元通过锥齿轮组的改向后与该端的同步带轮轴连接。该输送装置具有结构简单紧凑、占用空间小、外观美观耐看的优点。 ...

Polypropylene resin and preparation method thereof

The invention provides polypropylene resin and a preparation method thereof. The method comprises the following steps: polymerizing propylene serving as a raw material to obtain a polypropylene crude product; and purifying the obtained polypropylene crude product to obtain the polypropylene resin, the purification comprises the following steps: adding a polypropylene crude product into a composite solvent, fully contacting the polypropylene crude product with the composite solvent at 30-120 DEG C to form polypropylene slurry, then separating polypropylene from the composite solvent to obtain polypropylene powder, and drying the polypropylene powder to obtain the polypropylene resin. According to the bulk polymerization and deep purification process adopted by the invention, metal impurities and polypropylene oligomer are removed by using the organic composite solvent, and the produced resin product has lower ash content and higher isotacticity and can meet the requirements of high-end capacitors ...

Assembly type suspended ceiling top plate edge closing piece

The invention provides an assembly type suspended ceiling top plate edge closing piece, and relates to the technical field of decoration design, the assembly type suspended ceiling top plate edge closing piece comprises a suspended ceiling connecting piece connected with the upper side of a suspended ceiling plate and a suspended ceiling supporting piece connected with the lower side of the suspended ceiling plate, and the suspended ceiling connecting piece comprises a main transverse plate connected with the top end of a wall panel and a connecting frame arranged on the lower side of the main transverse plate; the lower side of the connecting frame is connected with the upper side of the ceiling plate through adhesive; the suspended ceiling supporting piece comprises an upper transverse plate connected with the side face of the wall panel, a lower transverse plate used for being connected with the lower side of the suspended ceiling plate and a connecting vertical plate used for connecting ...

Displacement floor drain structure for polyurethane waterproof bottom box and installation method of displacement floor drain structure

A movable floor drain structure for a polyurethane waterproof bottom box comprises a pre-buried cylinder, a bearing connecting piece, a movable cylinder and a waterproof cover plate, the waterproof cover plate is installed on the top of the movable cylinder, the movable cylinder is installed on the pre-buried cylinder through the bearing connecting piece, the movable cylinder serves as a movable part in the floor drain structure, a movable ring is arranged on the movable cylinder, and the movable ring is connected with the bearing connecting piece. The shifting cylinder is assembled on the bearing connecting piece through the moving ring, the relative position of the shifting cylinder on the bearing connecting piece can be adjusted through the moving ring, in order to facilitate installation of the shifting cylinder, a limiting ring is arranged on the bearing connecting piece, a through hole is formed in the limiting ring, and the hole diameter of the through hole is larger than the diameter ...

SCRIPT DEPLOYMENT METHOD AND APPARATUS, AND COMPUTER DEVICE AND STORAGE MEDIUM

Disclosed are a script deployment method and apparatus, and a computer device and a storage medium. The script deployment method comprises: receiving identification information of an object to be deployed and a target application environment under an initial application environment; for each object to be deployed, creating a database script corresponding to the object to be deployed by using a preset conversion script; performing validity check on the database script; after the verification is passed, performing preliminary deployment on the simulation environment by using the database script; obtaining a target script based on the pre-deployed deployment result; and deploying the target script into the target application environment. The technical solution of the present application can effectively increase the speed of creating the database script, save human resources, and improve the deployment success rate by means of the verification and adjustment of the database script, thereby ...

Flow field space-time super-resolution method based on deep learning

The invention discloses a flow field space-time super-resolution method based on deep learning, and the method comprises the steps: obtaining a high-resolution flow field and a low-resolution flow field of a to-be-analyzed physical system at a preset initial moment, and a low-resolution flow field of the to-be-analyzed physical system at a preset target moment; inputting the low-resolution flow fields at the preset initial moment and the preset target moment into a pre-trained time prediction model to obtain a plurality of low-resolution flow fields at preset intermediate moments corresponding to the low-resolution flow fields at the preset initial moment and the preset target moment; inputting the high-resolution flow field at the preset initial moment and the low-resolution flow fields at the plurality of preset intermediate moments and the preset target moment into a pre-trained space prediction model to obtain corresponding high-resolution flow fields at the plurality of preset intermediate ...

Liquid separation process monitoring method and system, storage medium and terminal

The invention provides a liquid separation process monitoring method and system, a storage medium and a terminal. The method comprises the following steps: acquiring a liquid separation process video based on an RGB color space; for each liquid separation process image of the liquid separation process video, extracting a mask image of a liquid separation container; zooming the liquid separation process image into a preset size, and converting the liquid separation process image into a gray level image; matching the grayscale image with the mask image to obtain a region of interest of the grayscale image; calculating the image entropy of the region of interest of each grayscale image, and constructing a time sequence of the image entropy; according to the liquid separation process monitoring method and system, the storage medium and the terminal, unattended liquid separation operation process monitoring of a laboratory is achieved based on the edge detection algorithm and the image entropy ...

User classification system based on expressway data

The invention relates to the technical field of road management, in particular to a user classification system based on expressway data, which comprises a data acquisition module, a model construction module and a classification module, and is characterized in that the data acquisition module is used for acquiring data of an expressway toll station to obtain vehicle information data, driving information data and charging information data of a user; the model construction module is used for constructing a user model according to the loss factor, the frequency factor and the value sensitive factor; and the classification module is used for data acquisition of the data acquisition module and the model construction module, the classification module performs scoring on a loss factor, a frequency factor and a value sensitive factor of the user according to the data of the user and the position data of the expressway, and the classification module performs classification according to the score ...

Entity tag attribute identification method, apparatus and device, and storage medium

The invention provides an entity label attribute recognition method and device, equipment and a storage medium. The method comprises the steps that a text vector and an attention shielding matrix of a text where a target entity is located are constructed; wherein values of matrix elements in the attention shielding matrix are used for representing the context of a text where the target entity is located and the mutual visibility between masks of the target entity; inputting the text vector and the attention shielding matrix into a mask language model obtained through training of a pre-training task, and obtaining a mask vector corresponding to the target entity output by the mask language model; and determining a label attribute category of the target entity based on the mask vector. Therefore, by constructing the attention shielding matrix, the entity label attribute recognition task is converted into the shielding word prediction task, so that the downstream task can be fused with the ...

Deviation detection method and device of roadside camera, electronic equipment and storage medium

The invention provides a deviation detection method and device for a roadside camera, electronic equipment and a storage medium, and relates to the field of artificial intelligence, in particular to the technical field of intelligent traffic. According to the specific implementation scheme, the method comprises the steps of obtaining a to-be-detected image currently collected by a roadside camera and a reference image collected in advance under an initial pose; the roadside camera completes external parameter calibration under the initial pose in advance; both the to-be-detected image and the reference image comprise fixed geographic elements; and comparing fixed geographic elements in the to-be-detected image with fixed geographic elements in the reference image, and determining whether the roadside camera deviates from the initial pose and reaches a set deviation degree. The roadside camera deviation detection method is simple and efficient, the degree of deviation of the roadside camera ...

Adjustable assembly type suspended ceiling edge closing structure and mounting method thereof

The invention provides an adjustable assembly type suspended ceiling edge closing structure and a mounting method thereof, and relates to the technical field of decoration design, the adjustable assembly type suspended ceiling edge closing structure comprises a wall surface edge closing piece arranged on a wall surface plate and a suspended ceiling edge closing piece arranged on a suspended ceiling plate, the wall surface edge closing piece comprises a top transverse plate and a top vertical plate, and the suspended ceiling edge closing piece comprises a main transverse plate and a connecting frame; the lower side of the connecting frame is connected with the upper side of the ceiling plate through adhesive, the main transverse plate is connected with the upper side of the top transverse plate, a ceiling supporting piece is arranged at the position of the top vertical plate and comprises a vertical plate and a contact plate, and the contact plate is connected with the lower side of the ...

Preparation method and application of high-pressure water mist additive for inhibiting and killing ethanol fire

The invention discloses a high-pressure water mist composite additive for inhibiting and killing ethanol fire. The additive comprises the following components in percentage by mass: 2-10% of alkali metal salt, 2-10% of a foaming agent and the balance of water. The preparation method of the high-pressure water mist composite additive comprises the step of dissolving the alkali metal salt and the foaming agent in water in sequence to obtain the composite additive. The use method of the high-pressure water mist composite additive comprises the following steps: diluting the composite additive and water according to the ratio of 1: 1-1: 5, and filling the diluted solution into a water storage tank of a high-pressure water mist fire extinguishing system, so that the high-pressure water mist fire extinguishing system can be started to extinguish an ethanol fire scene. The alkali metal salt and the foaming agent in the composite additive have a good synergistic fire extinguishing effect, and the ...

Stepped suspended ceiling structure matched with lamp strip and mounting method of stepped suspended ceiling structure

The non-coplanar suspended ceiling structure comprises an upper suspended ceiling layer and a wall-surrounding suspended ceiling layer, and the wall-surrounding suspended ceiling layer is located below the upper suspended ceiling layer and arranged along the peripheral edge of the upper suspended ceiling layer; the upper-level ceiling layer comprises an upper-layer keel frame and an upper-layer decoration layer which are used for being fixed to a floor, the upper-layer decoration layer is connected with the upper-layer keel frame through a buckle, a vertical frame plate is installed below the upper-layer decoration layer, a lower-layer decoration layer is connected below the vertical frame plate, and an F-shaped edge closing connecting piece is connected to the edge of the lower-layer decoration layer in a clamped mode. And an invisible mounting groove for mounting an invisible lamp strip is formed between the F-shaped edge-closing connecting piece and the vertical frame plate. The non-coplanar ...

Application program upgrading maintenance method and device, equipment and medium

The invention relates to the technical field of computers, in particular to an application program upgrading maintenance method and device, equipment and a medium, the method comprises the steps that when an upgrading request triggered by a user is detected, the type of a script to be upgraded is determined based on the upgrading request, and the type of the script to be upgraded comprises a service logic script type and a basic function script type; when the script type to be upgraded is a service logic script type, obtaining a service logic script to be upgraded, upgrading the service logic script to be upgraded to obtain an upgraded service logic script, and re-uploading the upgraded service logic script to the first storage space; and when the type of the script to be upgraded is a basic function script type, obtaining a basic function script to be upgraded, performing mirroring processing on the basic function script to be upgraded, and storing the basic function script subjected to ...

Reversely-mounted suspended ceiling wall surface edge closing structure

The invention provides a reversely-installed suspended ceiling wall surface edge closing structure, and relates to the technical field of decoration design, the reversely-installed suspended ceiling wall surface edge closing structure comprises a wall surface edge closing piece, the wall surface edge closing piece comprises a first vertical plate, a second vertical plate and a connecting transverse plate used for connecting the first vertical plate and the second vertical plate, and the transverse plate is connected with the top end of a wall surface plate; the end, away from the connecting transverse plate, of the second vertical plate is provided with a functional transverse plate, the end, close to the wall panel, of the functional transverse plate is connected with the side, away from the wall, of the wall panel, and the end, away from the wall panel, of the functional transverse plate is connected with the end of the ceiling plate. The structure is simple, the wall surface edge closing ...

Space-borne radar antenna temperature control device

The invention provides a satellite-borne radar antenna temperature control device, and relates to the technical field of radar antennas. Comprising a mounting plate; the first high heat conduction component and the radio frequency functional component are correspondingly arranged in the mounting plate; the first thermal control coating is arranged on the lower surface of the mounting plate; the second thermal control coating is arranged on the upper radiating surface of the antenna radiating unit of the radar antenna; the third thermal control coating is arranged on the lower radiating surface of the antenna radiating unit of the radar antenna; and the heat insulation part wraps the rest surfaces of the radar antenna except the lower radiating surface of the antenna radiating unit, and the thermal control device can improve the temperature uniformity of the multi-band radio frequency assembly of the radar antenna and the adaptability of a multi-satellite networking satellite constellation ...

DEUTERIUM SUBSTITUTED 1-[2-(2,4-DIMETHYL-THIOPHENYL)-PHENYL] PIPERAZINE COMPOUND OR DERIVATIVE THEREOF, AND PHARMACEUTICAL COMPOSITION AND USE THEREOF

The present invention provides a deuterium substituted 1-[2-(2,4-dimethyl-thiophenyl)-phenyl] piperazine compound with a structure represented by formula (I) or a derivative thereof, a pharmaceutical composition containing the compound or the derivative thereof, and an application of the compound or the derivative thereof in preparing drugs. The compound can be used to reduce oxidative metabolism of compounds, improve the drug concentration in blood and increase the effective bioavailability, so as to realize the effects of reducing the dosage and reducing the toxicity and other side effects. The deuterium substituted 1-[2-(2,4-dimethyl-thiophenyl)-phenyl] piperazine compound and the derivative thereof provided by the present invention can be used to treat related diseases such as affective disturbance, depression and anxiety.

SPECIFIC RECOGNITION AND DETECTION METHOD FOR RIBONUCLEIC ACID USING BORONIC ACID MODIFIED NANOPARTICLE SYSTEM

Disclosed is a specific recognition and detection method for ribonucleic acid using a boronic acid modified nanoparticle system, in the field of nucleic acid detection. Surfaces of gold nanoparticles and silver nanoparticles are modified, by means of thiol self-assembly, with a phenylboronic acid molecule containing a sulfhydryl group, forming a PBA-NP system. The PBA-NP system is capable of efficiently binding to RNA and performing signal labeling and amplification. The greatest advantage of PBA-NPs is their ability to selectively distinguish between RNA and DNA having the same base sequence, and the system can be combined with a variety of nucleic acid detection techniques to achieve specific detection of specified RNA sequences.

DATA PROCESSING METHOD AND APPARATUS BASED ON AUTOMATIC IDENTIFICATION SYSTEM

The present invention relates to the technical field of communications networks. Disclosed are a data processing method and apparatus based on an automatic identification system, which can remain compatible with the existing automatic identification system while supporting access of multiple virtual stations and can improve the data processing speed. A solution provided by embodiments of the present invention is: a virtual station container receiving data requests sent by a poller in sequence and querying in sequence whether each virtual station in the virtual station container has data to be sent at a current timeslot, the virtual station comprising a virtual timeslot allocation logic (TAL) device; and if a first virtual station has data to be sent at the current timeslot, the virtual station container reading data in the first virtual station and sending the data to a transmitter. The solution provided by the embodiments of the present invention can be used when the automatic identification ...

Data screening method and device based on information entropy and computer readable medium

The invention relates to a data screening method and device based on information entropy and a computer readable medium. The method comprises the following steps: acquiring a data set, wherein the data set comprises a plurality of data; classifying the multiple pieces of data according to the collection features of the multiple pieces of data; the probability distribution of each classification is counted, and the information entropy of the data set is calculated according to the probability distribution of each classification; and when the information entropy of the data set is smaller than a first threshold value, adjusting a plurality of data in the data set to increase the information entropy of the data set. According to the method, the information entropy of the whole data set can be increased by screening the data, so that the distribution of a plurality of states of a plurality of classifications in the data set tends to be average, the screened data is more suitable for serving ...

Data processing method and device based on predictive outbound, and electronic equipment

The invention discloses a data processing method and device based on predictive call-out and electronic equipment, and relates to the technical field of data processing. In the method, a server obtains a to-be-called task; the server allocates the task to be called out to an idle seat based on a preset call-out condition; and the server sends a to-be-answered instruction to the first user equipment, so that the idle seat processes the to-be-called task through the first user equipment. By implementing the technical scheme provided by the invention, the server automatically matches the idle seat for the to-be-called task, so that the matching effect is improved; compared with the prior art, configuration is not carried out according to personal management experience any more, so that the manual matching time is saved, and the overall call-out work efficiency is improved.

Engineering equipment operating handle simulation device and method based on linear Hall

The invention discloses an engineering equipment operating handle simulation device based on linear Hall, and the device comprises an operating handle module which is used for receiving the operation of an external force on a handle operating rod, and affecting the distance between a magnetic field and a sensor; the acquisition module is used for detecting and receiving a signal when the fine magnetic flux density changes when the operation handle module operates, and performing analog-to-digital conversion on the signal at the same time; when the magnetic flux density sensor is used, the operating handle module enables an internal structure to deform when external force acts on the operating handle, so that the acquisition module senses the change of magnetic flux density and outputs data, and the acquisition module acquires the data in the using process of the operating handle module, performs analog-to-digital conversion on the data and transmits the data to the control module; the control ...

Intelligent outbound method and device and electronic equipment

The invention relates to an intelligent outbound call method and device and electronic equipment. The method comprises the following steps: acquiring feature information of a call-out session for a historical one-way call; based on a preset training rule, training according to a preset convolutional neural network model and the feature information to obtain a prediction model; obtaining a current called number, and combining the current called number with any calling number and calling time to obtain original prediction data; on the basis of a preset prediction rule, according to original prediction data and the prediction model, predicting the connection probability of each piece of original prediction data; determining a target calling number and target calling time according to the connection probability; and performing outbound calling through the target calling number and the target calling-out time. The method and the device have the effect of improving the call completing rate of ...

Gradient total synthesis engine oil filtering material and preparation method thereof

The invention discloses a gradient total synthesis engine oil filter material and a preparation method thereof, and belongs to the technical field of engine oil filter paper. The low-weight three-layer structure with different precision and assimilative capacity is subjected to gradient compounding, meanwhile, the polyester material is compounded on the oil outlet surface total synthetic material, paper folding and hot plate welding processes can be directly carried out, and the total synthetic machine filter material which is long in service life, high in precision, low in resistance and high in efficiency is truly achieved.

Method and system for measuring smoke concentration during smoking of cigarette

The invention provides a method for measuring the smoke concentration during smoking of a cigarette. The method comprises the following steps: S1, providing the cigarette; s2, the cigarette is heated or ignited, and the cigarette is smoked once through a smoke suction unit; s3, smoke discharged from the smoke suction unit is collected through a smoke discharging unit; and S5, detecting the smoke concentration in the smoke discharge unit through a concentration detection unit. Meanwhile, the invention further provides a system for measuring the concentration of smoke generated during smoking of the cigarette. Compared with the prior art, the method and the system for measuring the smoke concentration during smoking of the cigarettes, provided by the invention, have the advantages that the release amount of the smoke generated during smoking of the cigarettes by consumers can be better evaluated, and the concentration of the smoke generated puff by puff during smoking of the cigarettes can ...

Intelligent customer service method and system, electronic equipment and readable storage medium

The invention relates to an intelligent customer service method and system, electronic equipment and a readable storage medium. The method comprises the steps of obtaining a user question; extracting keywords of the user question according to a preset keyword extraction rule, and determining the number of the keywords; when the number of the keywords is smaller than a preset number value; according to a preset semantic analysis rule, a preset knowledge base and the user question, semantic reply data is determined, and the semantic reply data comprises semantic reply content and semantic similarity; on the basis of a preset keyword matching rule, keywords are matched from the knowledge base, keyword reply data are determined, and the keyword reply data comprise keyword reply content and keyword similarity; and determining a target reply content according to a reply determination rule, the semantic similarity and the keyword similarity. The method has the effect of improving the matching ...

Fabricated double-staggered-floor non-coplanar suspended ceiling

The invention belongs to the technical field of general building structures, and particularly relates to a floor slab with the structure of a supporting structure as the characteristic, in particular to an assembly type double-staggered-floor stepped ceiling. Comprising a high-position plate; a lower plate; the upper end of the fixing piece is connected with the high-position plate, and the lower end is connected with the low-position plate; the low-position plate is provided with a shifting hole body used for being connected with the fixing piece, the shifting hole body moves in the horizontal direction perpendicular to the fixing piece, and the position, opposite to the low-position plate, of the shifting hole body is fixed when the fixing piece is connected with the low-position plate. Through the arrangement of the shifting hole body, the position of the low-position plate can be adjusted according to the radian of the arc-shaped plate, meanwhile, the shifting hole body can also adjust ...

Traditional Chinese medicine composition for treating chronic heart failure and preparation method thereof

The invention discloses a traditional Chinese medicine composition for treating chronic heart failure and a preparation method thereof, and relates to the technical field of medicines. The traditional Chinese medicine composition comprises the following raw materials in parts by weight: 10-50 parts of poria cocos, 5-20 parts of ginseng, 5-20 parts of prepared radix aconiti carmichaeli, 5-20 parts of rhizoma zingiberis and 5-20 parts of honey-fried licorice root. The raw materials of the composition are all pure natural medicinal materials and are simple and easy to obtain, and the five traditional Chinese medicines interact and cooperate with one another, so that the composition has the effects of restoring yang and tonifying yin. The invention relates to a preparation method of a medicine for treating chronic heart failure, which comprises the following steps: weighing raw materials, adding monkshood (prepared) into water which is 6-8 times of the total amount of the raw materials, decocting ...

Solar -energy themos bottle

... 本实用新型公开了一种太阳能热水瓶。现有太阳能热水瓶对阳光利用不充分。本实用新型的瓶胆采用太阳能集热真空管；瓶罩的前部开设有槽口，后部设有把手；提手的一端铰接在瓶罩上部，另一端为支撑架；两个开闭外壳背对的侧部均通过活页与瓶罩铰接；开闭外壳的内侧面镶嵌反光镜；活页上设有限位块；一个开闭外壳与伸缩装置构成滑动副，另一个开闭外壳开设有与伸缩装置匹配的凹槽；按钮控制伸缩装置的缩进；伸缩装置自带弹性伸出机构。本实用新型使阳光照射到开闭外壳内侧面的反光镜时被反射到瓶胆上，这样阳光能更充分地被太阳能集热真空管做成的瓶胆吸收利用，另外瓶胆表面的吸热膜也大大减少水温上升的时间。 ...

Automatic starting display method of entrance machine

The invention provides an automatic starting and displaying method for an entrance machine, which comprises the following steps that: the entrance machine is in a standby state, and a liquid crystal screen is in a closed state under the control of a controller; temperature information and humidity information are collected through a temperature sensor and a humidity sensor of the entrance machine, and a controller outputs brightness and contrast of a backlight source of a liquid crystal screen according to temperature and humidity digital signals; when a user touches a key of the entrance machine, the controller receives a first instruction, and the first liquid crystal screen is turned on; when the called user turns on the video, the controller receives a second instruction and turns on the second liquid crystal screen; and according to a third instruction preset by the controller, the controller receives the third instruction and starts the third liquid crystal screen. The brightness ...

Aerosol generating product

The invention relates to an aerosol generating product. The aerosol generating product comprises an aerosol forming base material, a cooling part and a filtering part which are connected in sequence, the cooling component comprises a cooling body and an axial channel arranged in the cooling body in the axial direction of the cooling body, and the axial channel comprises a plurality of sections of first sub-channels communicating in sequence. The diameter of the middle end of each first sub-channel is smaller than the diameter of the first end and the diameter of the second end of each first sub-channel, and the contact area between aerosol and the inner wall of the cooling body can be effectively increased by arranging the cooling body and arranging the multiple sections of first sub-channels which are sequentially communicated and of which the diameters of the middle ends are smaller than the diameters of the two ends in the cooling body; the heat exchange between the aerosol and the cooling ...

Explosion-proof LED street lamp

The invention discloses an anti-explosion LED street lamp which comprises a lamp holder, a liquid storage cavity, a mounting plate, a heat dissipation cavity and a lamp body. The liquid storage cavity and the mounting plate are sequentially connected to the bottom of the lamp holder, the heat dissipation cavity is formed in the middle of the bottom end of the mounting plate, the lamp body is connected to the bottom of the heat dissipation cavity, the diameter of the bottom end of the mounting plate is larger than the outer diameter of the heat dissipation cavity, and an anti-explosion assembly is further arranged at the bottom end of the mounting plate. The explosion-proof assembly is arranged on the outer side of the heat dissipation cavity and the lamp body, cooling liquid is arranged in the liquid storage cavity, a temperature sensing assembly is arranged at the top end of the lamp body, the temperature sensing assembly controls communication of the liquid storage cavity and the heat ...

Photovoltaic frequency modulation method and system based on variable load shedding control and comprehensive frequency control, and computer readable medium

The invention provides a photovoltaic frequency modulation method and system based on variable load shedding control and comprehensive frequency control, and a computer readable medium. The method comprises the following steps: monitoring system frequency and calculating frequency deviation and frequency change rate; if the system frequency change exceeds a preset threshold value, modifying the control mode of the Boost converter, and changing the port voltage of the photovoltaic array; the comprehensive frequency control is composed of active-frequency droop control and virtual inertia control, the active output of the photovoltaic power station is dynamically adjusted according to the system frequency deviation and the system frequency change rate, and primary frequency modulation is completed. According to the photovoltaic variable load shedding control, the load shedding rate of a photovoltaic array is dynamically adjusted according to the local illumination intensity change of a photovoltaic ...

Preparation process and device of natural plant antibacterial essence anti-dandruff hair-nourishing paste shampoo

The invention discloses a preparation process and a preparation device of natural plant antibacterial essence shampoo capable of removing dandruff and nourishing hair. The preparation method comprises the following steps: A, preparing natural plant antibacterial essence; b, putting the natural plant antibacterial essence into an electric heating stirring pot; c, sequentially adding 20 to 30 percent by weight of disodium cocoamphodiacetate, 10 to 15 percent by weight of alkyl polyglycoside with the carbon chain number of C8-C14, 10 to 15 percent by weight of saponaria saponin, 0.3 to 0.4 percent by weight of guar gum, 4 to 5 percent by weight of sweet almond oil, 2 to 4 percent by weight of wheat germ emulsifying wax, 1 to 2 percent by weight of olive oil emulsifying wax, 1 to 2 percent by weight of shea butter and 5 to 8 percent by weight of sodium chloride; d, heating to 80 DEG C, stirring and fusing, cooling to 50 DEG C, sequentially adding 1-2 wt% of menthol, cooling to 40 DEG C, adding ...

Femoral condyle prosthesis installation guider

The invention belongs to the technical field of medical instruments, and particularly relates to a femoral condyle prosthesis installation guider. Comprising a handle, a connecting block, a fixing block, a clamping arm, a pushing block, a first spring, a main body, a guide rod and a convex column; the clamping arms on the two sides are pressed, so that the first spring is compressed, the clamping arms on the two sides rotate and expand towards the two sides, the femoral condyle prosthesis is clamped, the handle is rotated, so that the handle moves towards the fixing block, the pushing block approaches and extrudes the femoral condyle prosthesis, and the femoral condyle prosthesis is clamped and fixed in cooperation with the clamping arms; when the handle is held by hand to align the femoral condyle prosthesis to the mounting position of the femur, the vertical line of the femoral condyle prosthesis and the force line of the femur can form an included angle, and the guide rod is used for ...

Curved surface material laser fusion welding positioning system and method based on machine vision

The invention discloses a curved surface material laser fusion welding positioning system and method based on machine vision. The device comprises a conveying device used for containing equipment to be machined, a vertical moving mechanism and a controller, an image collecting device and a laser machining device are installed on the vertical moving mechanism, and the conveying device is used for carrying the equipment to be machined to do XY plane motion below the vertical moving mechanism. The image acquisition device is used for acquiring an image of to-be-processed equipment; the controller is used for determining machining point set coordinates of all welding points on the to-be-machined equipment according to the image of the to-be-machined equipment, controlling the conveying device to convey the to-be-machined equipment to the corresponding coordinate position below the laser machining device according to the machining point set coordinates and controlling the laser machining device ...

Wing flow field analysis method based on graph neural network MeshGraphNets

The invention discloses a wing flow field analysis method based on a graph neural network MeshGraphNets, and the method comprises the steps: carrying out the grid division of a to-be-analyzed wing, and constructing a grid structure graph model corresponding to the wing; obtaining a training sample set; constructing a graph neural network model, wherein the graph neural network model adopts a MeshGraphNets network structure; constructing an embedded physical knowledge loss function according to a nonlinear partial differential equation and boundary conditions corresponding to a to-be-analyzed wing, and performing unsupervised training on the graph neural network model; acquiring a flow field of each node in the grid structure chart model corresponding to the wing to be analyzed at a preset moment, and inputting a graph containing the flow field information of each node at the preset moment into the graph neural network model to obtain a corresponding graph containing the flow field information ...

Polyion liquid-based antibacterial waterborne polyurethane emulsion as well as preparation method and application thereof

The invention relates to a polyion liquid-based antibacterial waterborne polyurethane emulsion as well as a preparation method and application thereof. The preparation method comprises the following steps: adding dihydric alcohol and binary isocyanate into a reactor, adding a tertiary amine catalyst or an organic metal compound catalyst, and reacting to obtain a prepolymer; adding a hydrophilic chain extender into a system obtained by the reaction, continuously reacting for a period of time, then adding a functionalized small-molecule ionic liquid monomer, continuously reacting, and adjusting the viscosity with acetone to obtain a waterborne polyurethane prepolymer; and after the reaction is finished, cooling, adding a neutralizing agent which is equal to the hydrophilic chain extender in mole, reacting, adding deionized water, and carrying out high-speed shearing emulsification, so as to obtain the polyion liquid-based antibacterial waterborne polyurethane emulsion, namely the polyion ...

Liquid separation process monitoring and end point identification method and system, storage medium and terminal

The invention provides a liquid separation process monitoring and end point identification method and system, a storage medium and a terminal. The method comprises the following steps: acquiring a liquid separation process video based on an RGB color space; performing edge detection on each liquid separation process image of the liquid separation process video; based on the liquid separation process image after edge detection, extracting a mask image of the liquid separation container; zooming each liquid separation process image of the liquid separation process video into an RGB image with a preset size; matching the RGB image with the mask image to obtain a region of interest of the RGB image; and calculating the image entropy of each region of interest, constructing a time sequence of the image entropy, and selecting the moment corresponding to the maximum value of the image entropy as a liquid separation end point. According to the liquid separation process monitoring and end point ...

Automatic device and method for high-throughput screening of drug synthesis conditions

The invention provides a high-throughput drug synthesis condition screening automation device and method. The high-throughput drug synthesis condition screening automation device comprises a central robot and a chemical drug synthesis line arranged on the periphery of the central robot, and a first feeding device, a second feeding device and a feeding and discharging device are arranged on a container inlet and outlet station; a code assigning and scanning device is arranged on the container identification station; a solid filling device is arranged on the solid adding station; a first pipetting device and a solution filling device are arranged on the liquid filling station; an air-entrapping cover locking device and a reaction test device are arranged on the packaging reaction station; a multi-accessory supply device is arranged on the accessory supply station; and a second pipetting device is arranged on the dilution sampling station. According to the invention, automatic weighing, sample ...

Method and system for removing organic solvent in liquid medicine

The invention provides a method for removing an organic solvent in a liquid medicine, which comprises the following steps: pumping the liquid medicine into an ultrafiltration membrane group for ultrafiltration dialysis to obtain the liquid medicine without the organic solvent. The invention designs a method capable of actively separating water and small molecular organic solvents in nano suspension liquid medicine by adopting an ultrafiltration dialysis technology through technical innovation. The method has the following advantages: 1, the ultrafiltration dialysis multiple can be freely selected according to the size of the product batch and the limit of the residual solvent, so that the liquid medicine meeting the residual solvent limit required by the process is obtained; 2, the organic solvent is removed by using an ultrafiltration dialysis technology, most parameters are set before production, and only monitoring is needed in the removal process, so that the automation degree is high ...

Vehicle course angle processing method and device, electronic equipment and automatic driving vehicle

The invention provides a vehicle course angle processing method and device, electronic equipment and an automatic driving vehicle, and relates to the technical field of vehicle control, in particular to the field of automatic driving and intelligent traffic. Comprising the steps that under the condition that the running speed of a target vehicle is reduced to be smaller than a first speed threshold value, a first course angle when the running speed of the target vehicle is larger than or equal to the first speed threshold value is obtained, and the first course angle is a stored course angle closest to the current moment; taking the first course angle as a course angle of the target vehicle, and controlling the course angle of the target vehicle to be in a latched state; under the condition that the running speed of the target vehicle is larger than or equal to a second speed threshold value, the course angle of the target vehicle is controlled to be switched from the latching state to ...

Nonmetal pipe with electromagnetic induction positioning function

The invention discloses a non-metal pipe with electromagnetic induction positioning, which is characterized in that three copper wires distributed in a regular triangle shape are arranged in the pipe wall of the non-metal pipe to form a non-metal pipeline (channel) with electromagnetic induction positioning, the copper wires are arranged in the regular triangle shape, and according to an electromagnetic field generated by electromagnetic induction of the copper wires and an electromagnetic field superposition principle, the copper wires are positioned in the non-metal pipeline (channel). Under external electromagnetic induction, the three copper wires are simultaneously excited to generate a secondary electromagnetic field, the electromagnetic field forms a new electromagnetic field through superposition, and the electromagnetic field is equivalent to a space electromagnetic field generated by one copper wire at the center of gravity of a regular triangle. The space electromagnetic field ...

Surface mounting device for semiconductor chip processing

The invention relates to the technical field of semiconductor chip production and processing, and discloses a surface mounting device for semiconductor chip processing, which comprises a workbench, the upper part of the workbench is fixedly connected with an L-shaped frame, the top of the L-shaped frame is provided with a moving mechanism, the upper part of the workbench is provided with a clamping mechanism, and the left side of the workbench is provided with a drying mechanism. And a cleaning mechanism is arranged on the right side of the workbench, the clamping mechanism comprises a second motor, the output end of the second motor is fixedly connected with a two-way threaded rod, and the two sides of the outer portion of the two-way threaded rod are in threaded connection with second threaded blocks. Through the clamping mechanism, a clamping effect can be achieved during processing of the semiconductor chip, so that a protection effect is achieved while the stability of the semiconductor ...