电池包（B6A）

Handcart room door interlocking device

... 本实用新型涉及开关柜技术领域，尤其涉及一种手车室门联锁机构。通过支架、联锁板以及锁轴；所述联锁板通过支撑装置可转动的安装在支架上；所述联锁板一端设有套设在手车室活门机构金属滚轮上的弧形槽，另一端设有用来锁住锁轴的U形槽；使一种手车室门联锁机构结构简单，加工方便，方便装配和后期检修维护。 ...

Receiving hopper floating force control valve group, floating system, control method and remixer

The invention discloses a receiving hopper floating force control valve group, a floating system, a control method and a remixer, the control valve group is connected with a rodless cavity of a to-be-controlled oil cylinder through a working port of an electric proportional pressure reducing valve, a rod cavity of the to-be-controlled oil cylinder is connected with return oil, and the thrust of the oil cylinder is controlled. According to the remixer receiving hopper floating system, vertical movement of the remixer receiving hopper is controlled through the oil cylinder piston rod, it is guaranteed that tires of the thrust wheels roll along with running of a vehicle, and profiling movement of the thrust wheels along with terrain changes is achieved.

Automatic wafer conveying equipment for semiconductor industry

The invention discloses automatic wafer conveying equipment for the semiconductor industry, and relates to the technical field of conveying equipment.The automatic wafer conveying equipment adopts a stepping type feeding mode, in the single-time feeding process, single wafer bodies are exposed to the upper side position of a material stacking table, the wafer body located on the uppermost side is pushed out in a pushing mode, and the wafer body on the lower side is pushed out in a pushing mode; according to the invention, the wafer body falls into the material supporting and fixing structure in a blanking manner, the wafer body is preliminarily positioned through the plurality of side stop levers, and when the wafer body is clamped, adsorbed and fixed, the wafer body is clamped in a bidirectional symmetrical contact manner, so that the forces applied to the two side surfaces of the wafer body are ensured to be in a relatively balanced state; the problem that the wafer bodies are damaged ...

INTEGRAL BRIDGE DECK CRANE FOR CENTRAL CABLE PLANE STEEL BOX GIRDER

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

一体式储能空调

充电底座(DC6B)

割草车（DLC)

Stable energy-saving air compressor device capable of reducing noise

The utility model discloses a stable type energy-saving air compressor device capable of reducing noise. The stable type energy-saving air compressor device comprises a base, a noise reduction limiting assembly is arranged at the top of the base, an air compressor is fixedly installed on one side of the top of the base, an air storage tank is fixedly installed on one side of the air compressor, and an adjusting rotating assembly is arranged between the air storage tank and the air compressor. According to the stable type energy-saving air compressor device capable of reducing noise, air pressure in the air storage tank is measured in real time through the pressure measuring instrument, and when the pressure value in the air storage tank is lower than or higher than a set warning value, an adjusting sealing plate can be driven to rotate in real time through a linkage starting motor; the adjusting sealing plate and the inner wall of the gas guide pipe can form a certain range of opening degree ...

Sheet metal case and processing method thereof

The invention relates to the technical field of sheet metal cases, in particular to a sheet metal case, which comprises a bottom plate, a top plate and side plates, the side plates comprise a fixed side plate and a movable insertion plate, the fixed side plate is provided with heat dissipation holes, and the inner wall of the fixed side plate is provided with a dustproof assembly corresponding to the heat dissipation holes. The dustproof assembly and the fixed side plate are detachably installed. The dustproof assembly comprises a mounting frame, a supporting frame is arranged on the mounting frame, and dustproof screen cloth covers the supporting frame; the processing method comprises the following steps: S1, preparing a sheet metal raw material; s2, a machine tool is used for carrying out cutting and drilling treatment to obtain case sheet metal part units capable of being assembled; s3, welding forming is conducted on the fixed side plate, and grinding and polishing treatment is conducted ...

Method for acquiring oil film pressure distribution during unbalance loading of oil film bearing

The invention discloses a method for acquiring oil film pressure distribution during unbalance loading of an oil film bearing, which comprises the following steps of: establishing a three-dimensional model of a supporting roller, and acquiring a position point A and a position point B corresponding to two ends of a bushing; segmenting the geometric model of the supporting roll, applying a fixed constraint to the roll surface of the supporting roll, and applying a rolling pressure load to the conical surface area of the supporting roll; the displacement difference between the position point A and the position point B in the supporting roller is obtained, and the actual aligning amount of the oil film bearing aligning mechanism is obtained; acquiring oil film thicknesses of the position point A and the position point B; based on the obtained oil film thickness, a distribution model of the oil film thickness is established and imported into CFD simulation software, the bearing rotation speed ...

CHARACTER DETECTION METHOD AND DEVICE, AND CHARACTER DETECTION TRAINING METHOD AND DEVICE

Disclosed are a character detection method and device, and a character detection training method and device. An exemplary character detection method comprises: extracting a feature map from an image comprising a character region by using a convolutional neural network; transversely clipping the feature map by using a plurality of anchors separately, to obtain a plurality of suggestion regions; classifying and regressing each suggestion region by means of the convolutional neural network, wherein whether each suggestion region corresponds to an region comprising characters is determined by means of the classification, and the position in the image corresponding to each suggestion region is determined by means of the regression; and transversely splicing, according to the positions in the image that respectively correspond to the suggestion regions and are determined by means of the regression, the suggestion regions that correspond to the regions comprising characters and are determined ...

汽车侧围

书本夹

Vehicle accident warning method, system and device, electronic equipment and storage medium

The invention discloses a vehicle accident warning method, system and device, electronic equipment and a storage medium, and relates to the technical field of vehicle accident handling, and the method comprises the steps: obtaining a vehicle identifier and driving parameter information sent by vehicle equipment; under the condition that an identifier of user equipment corresponding to the vehicle identifier and communication information of the user equipment are obtained from a database, the driving state of the vehicle is determined according to the driving parameter information; under the condition that the driving state of the vehicle is that the vehicle has an accident, determining a vehicle accident grade of the vehicle according to the driving parameter information; according to the vehicle accident level and the communication information, an accident handling mode corresponding to the vehicle accident level is adopted to interact with the user equipment, so that when a vehicle accident ...

Slow-release plugging method for karst pipeline

The invention relates to the technical field of exploration and engineering, and provides a slow-release blocking method for a karst pipeline. Comprising the eight steps of drilling, flexible outer package manufacturing, capsule manufacturing, slurry preparation, plugging device assembling and putting, slurry slow-release solidification, grouting block releasing and secondary grouting. The method specifically comprises the steps that firstly, a karst pipeline is ascertained; manufacturing an expandable flexible outer package; preparing a sustained-release capsule and a buoyancy capsule; preparing outer slurry and slow-release slurry according to the flexible outer wrapping size and the solidification time; slow-release slurry is injected into a slow-release capsule, outer slurry is injected into a flexible outer package, and the slurry is put into a karst pipeline along a drilling hole; and after the solidification time is up, cutting off the traction rope to release the grouting block ...

Direct-driven wind turbine generator virtual inertia optimization control method for relieving impact load

The invention relates to a direct-driven wind turbine generator virtual inertia optimization control method for relieving impact load, and belongs to the technical field of wind turbine generators. The method comprises the steps that on the basis that a super capacitor is configured on the direct current side of a direct-driven wind turbine generator, the virtual inertia optimization control method for coordination of a rotor of the direct-driven wind turbine generator and the configured super capacitor is provided, the method comprises two control links of rotor inertia control and super capacitor inertia control, and the input of the two links is the system frequency change rate; after the virtual inertia coefficient sub-link, a total active power reference value of virtual inertia control is output, active power reference values of a rotor inertia control link and a super-capacitor inertia control link are respectively output, and the two active power reference values are respectively ...

Pressing device for profile steel packaging

The invention relates to a pressing device for profile steel packaging, and belongs to the technical field of profile steel packaging, the pressing device comprises a workbench, a mounting groove is formed in the upper surface of the workbench, a plurality of conveying rollers are arranged in the mounting groove, a pressing plate is arranged below a top plate, first fixing blocks are fixed to the two sides of the top plate, and second fixing blocks are fixed to the two sides of the pressing plate; a lead screw is fixed to an output shaft of the motor, penetrates through the second fixing block and is in threaded connection with the second fixing block. A mounting hole formed in the vertical direction is formed in the bottom of the pressing plate, a connecting rod and a first spring are arranged in the mounting hole, the bottom of the connecting rod extends out of the mounting hole and is fixedly provided with an abutting block, the first spring is fixed between the abutting block and the ...

Wind power submarine cable route detection method

The invention provides a wind power submarine cable route detection method. The method comprises the following steps: acquiring field environment data of a wind power submarine cable; according to the field environment data, the ship size and the draft depth for detection are determined; according to the size and the draft of the ship, a support is designed, and the support is installed on the corresponding ship; a shallow profiler system is installed on the support; laying measuring lines; after the measuring lines are arranged, sediment distribution and pipeline burying position information collection are carried out; processing and outputting the collected information; and determining the routing condition of the submarine cable according to the output information.

COPPER-BASED MICROCRYSTALLINE ALLOY, PREPARATION METHOD THEREOF, AND ELECTRONIC PRODUCT

The present invention relates to a copper-based microcrystalline alloy, a preparation method thereof, and an electronic product. The copper-based microcrystalline alloy comprises, in weight percent, 30-60% of Cu, 25-40% of Mn, 4-6% of Al, 10-17 of Ni, 0.01-10% of Si, and 0.001-0.03% of Be, based on the total amount of the copper-based microcrystalline alloy.

Peanut divides material area

... 本实用新型公开了花生分料带，包括花生输送带、分料门、推动装置和开关，花生输送带的左右两侧安装有花生挡板，花生挡板上开设多个花生出口，每个花生出口均安装有可水平转动的分料门，分料门的转动结合部安装在花生出口的前侧边，每个分料门安装有推动装置，推动装置带动分料门关闭或打开相应的花生出口，每个推动装置电连接有控制其工作的开关。本实用新型可自动进行分料，大大降低了工人的劳动强度，减少了作业人员，提高了工作效率。 ...

Automatic precise throwing and filling device control system

The invention provides an automatic precise dumping and filling device control system, which comprises a storage and transportation device, a dumping and filling device, a dumping and filling device and a control device, the throwing device is used for throwing the object to be thrown and filled into the suspended pit according to the throwing instruction; the conveying device is used for conveying the objects to be thrown and filled from the storage and transportation device to the throwing device according to the conveying instruction; the hydraulic station is used for controlling the multiple storage and transportation devices to operate according to the control instruction; and the control device is used for generating a throwing instruction, a transmission instruction and a control instruction. A targeted control system is designed for a submarine pipeline suspended automatic precise throwing and filling device, integrated and unified control over the automatic precise throwing and ...

Laser navigation calibration method

The embodiment of the invention provides a laser navigation calibration method. The method comprises the following steps: parallelly fixing a calibration plate at a first position which is separated from a detector by a first distance; controlling the laser module to obliquely project laser to the calibration plate, shooting a first depth image of the calibration plate through the depth camera, and obtaining a first detection image of the calibration plate through the detector; fixing the calibration plate in parallel at a second position spaced from the detector by a second distance, shooting a second depth image of the calibration plate through the depth camera, and obtaining a second detection image of the calibration plate through the detector; and according to the first depth image, the second depth image, the first detection image and the second detection image, calculating an incident angle of the laser module and a position mapping relation between the laser module and the detector ...

Mesh belt type crystallization furnace for preparing microcrystalline glass plate from molten manganese alloy slag

The invention discloses a mesh belt type crystallization furnace for preparing a microcrystalline glass plate from molten manganese alloy slag. The mesh belt type crystallization furnace comprises a roller kiln, a mesh belt, a release agent spraying device and a release agent drying device, the mesh belt is of a continuous structure connected end to end and circularly moves around the roller kiln through a plurality of carrier rollers, and the release agent spraying device and the release agent drying device spray a release agent on the mesh belt and dry the release agent. By arranging the mesh belt, the problem that molten glass is softened, flows into the space between the rollers and is bonded with the rollers to cause blocking of the rollers can be effectively solved, and the continuity of the production process is obviously improved. On the other hand, the moisture in the release agent is reduced and the temperature of the release agent is increased to a certain extent by drying the ...

FUZZY NEURAL NETWORK-BASED BODY AREA NETWORK HEALTH INFORMATION MONITORING AND INTERACTION SYSTEM

A fuzzy neural network-based body area network health information monitoring and interaction system comprises collection ends, a fuzzy neural network analysis and detection system, an interaction module, a recognition unit and a display unit; the collection end comprises a collection module and a control module; the collection module is used for collecting related biological data collected by household medical equipment and sending the data to the control module; the control module is further used for controlling the collection module to collect data; the interaction module is used for building an interactive group, selecting the size of the interactive group and the number of the collection ends for mutual data interaction, and creating data sharing; the fuzzy neural network analysis and detection system comprises a model building module, a fuzzy neural network data analysis module and a ranking module. Timely uploading of health monitoring data and interaction within a selectable range ...

METHOD, DEVICE AND SERVER FOR ACQUIRING RECOMMENDED THEME

Disclosed are a method, device and server for acquiring a recommended theme, belonging to the technical field of networks. The method comprises: according to a current page link, acquiring a recommended theme associated with the theme of a current page; and displaying the recommended theme on the current page. By adopting the technical solution provided in the embodiments of the present invention, a page link is used as an index to acquire a recommended theme associated with a theme, but not limited to a page associated with the theme, realizing the purpose of extending to other themes, expanding the browse range, and making full use of a network to provide more services for users.

CU-BASED MICROCRYSTALLINE ALLOY AND METHOD FOR MANUFACTURING SAME

A Cu-based microcrystalline alloy and a method for manufacturing same. The alloy contains 20-30% of manganese, 0.01-10% of aluminum, 5-10% of nickel, 0.3-1.5% of titanium, 0-1.5% of zirconium, 0.05-2% of silicon, and 45-74.64% of copper, and is obtained by means of smelting and casting.

High-texture thickened PU synthetic leather and preparation method thereof

The invention discloses high-texture thickened PU (polyurethane) synthetic leather which comprises a surface treatment layer, a color layer, a subsequent foaming layer and a base cloth layer, a compact micro-foaming layer is arranged between the color layer and the subsequent foaming layer, and the compact micro-foaming layer comprises the following components in percentage by mass: 63-75% of aromatic polyurethane prepolymer GG-01-A, 5-8% of a diluting solvent, 1-5% of an anti-oxidant, 1-5% of an antioxidant, 1-5% of a lubricant and 1-5% of a lubricant. The invention further provides a preparation method of the PU synthetic leather. The preparation method comprises the following steps: manufacturing the color layer, manufacturing the compact micro-foaming layer, manufacturing the foaming layer, adhering the foaming layer and the base cloth layer together, stripping, curing, and manufacturing the surface treatment layer. According to the PU synthetic leather prepared by the preparation method ...

Laser frequency locking optical path for cold atom interferometer

The utility model relates to a laser frequency-locking optical path for a cold atom interferometer. The laser frequency-locking optical path comprises a polarization spectroscopic optical path 01, an AOM modulation optical path 02, a saturated absorption optical path 03 and a photoelectric tube 14, the laser is divided into reflected light and transmitted light after passing through a polarization spectroscopic light path 01; the reflected light serving as signal light is transmitted to the saturated absorption light path 03 and then is positively incident to the photoelectric tube 14; the transmission light enters an AOM modulation light path 02 for frequency shift and then returns, and enters a saturated absorption light path 03 to coincide with the signal light, so that the signal light generates a saturated absorption signal; the AOM modulation light path is added in the frequency locking light path, the frequency locking of the laser is realized by modulating the AOM frequency to obtain ...

Current type PWM rectifier DC side voltage fluctuation suppression control method

The invention discloses a current-mode PWM rectifier DC side voltage fluctuation suppression control method, which comprises the steps of establishing a discretization mathematical model of a rectifier in a two-phase static coordinate system, tracking a grid side input current in a grid side current inner ring by adopting a dead-beat control strategy, predicting a control algorithm to a k + 2 moment, eliminating a k + 1 moment current by utilizing an arithmetic iteration process, and finally, carrying out voltage fluctuation suppression control on the DC side of the rectifier. Therefore, the grid-side current control precision is improved, the current harmonic content is reduced, the influence caused by control delay is reduced, the grid-side current control precision is improved, and the dynamic performance of the system is improved; an active-disturbance-rejection control DC side output voltage is adopted in a DC side voltage outer ring, the system disturbance quantity is estimated in ...

Accurate positioning method for favorable uranium ore sand body in coverage area

The invention belongs to the technical field of uranium mineralization favorable sand body prediction, and particularly relates to an accurate positioning method for favorable uranium mineralization sand bodies in a coverage area, which comprises the following steps of: 1, collecting and analyzing data, and delineating key prospecting basin sections and regions with larger potential; 2, determining a favorable prospecting target horizon; 3, supplementing and collecting drilling hole data for drilling through the favorable prospecting target horizon determined in the step 2, and counting data of various ore control elements of the target horizon; 4, drawing each ore control element map of the target horizon by utilizing Surfer software, and screening the most favorable mining area of each element; and 5, nesting and superposing various patterns, and accurately positioning the favorable uranium ore sand body. According to the method, all the favorable metallogenic elements are extracted and ...

Control method for preventing small-specification wire rod reducing and sizing tail leaving

The invention discloses a control method for preventing small-specification wire rod reducing and sizing tail leaving, and relates to the technical field of steel production, and the control method comprises the steps that reducing and sizing roller gap design is enlarged, and broadening of a material type during rolling is reduced, so that the material type is not prone to being squeezed into the roller gap; the size of supplied materials is controlled; a water pipe is additionally arranged at an outlet guide and guard part of a second roller in front of the finished sizing roller, and oxide scale in an inlet guide and guard part of a next roller is flushed: the hole pattern of the finished sizing roller is redesigned, the radian of the hole pattern is increased, and the size of a roller gap is increased; and controlling the running stability of the rolled piece, reducing and sizing to adjust tension, and adjusting the tension into micro-tension control. And reducing and sizing'tail leaving ...

Method and device for determining gap intrusion safety evaluation index

The invention discloses a gap intrusion safety evaluation index determination method and device, and relates to the technical field of automobiles. When the width of the gap is smaller than the preset threshold value, the intrusion safety evaluation index of the gap is determined according to the width and depth of the gap, if the intrusion safety evaluation index is smaller than or equal to zero, the intrusion safety of the gap is qualified, and if the intrusion safety evaluation index is larger than zero, the intrusion safety of the gap is unqualified. Therefore, the intrusion safety evaluation index of the gap can be reasonably determined when the width of the gap is smaller than the preset threshold value, and objective and reasonable evaluation of the intrusion safety of the gap is facilitated.

Mine water underground treatment and reuse method and mine water underground treatment and reuse device

The invention provides a mine water underground treatment and reuse method and a mine water underground treatment and reuse device.The mine water underground treatment and reuse method comprises the steps that S10, mine water in a coal mine is conveyed to a coal mine underground reservoir, suspended solids in the mine water in the coal mine underground reservoir are removed, and primary water is obtained; primary water can be directly reused or further treated; s20, softening the first-stage water underground to obtain second-stage water, wherein the second-stage water can be directly reused or further treated; s30, removing organic matters in the second-stage water underground to obtain third-stage water, wherein the third-stage water can be directly reused or further treated; and S40, deeply desalting the third-stage water underground to obtain fourth-stage water, and directly reusing the fourth-stage water. By the adoption of the scheme, mine water in a coal mine is directly conveyed ...

Continuous sampling device for soil body in drill hole

The invention relates to the technical field of engineering geological exploration, and provides a continuous sampling device for a soil body in a drill hole. The device consists of a double sampler, a drill rod and a sampling bin, the whole double sampler is of a double tubular structure, the outer sleeve and the drill bit are used for cutting and drilling the bottom of a drill hole, the soil cutting ring cutter and the sample tube are used for collecting an undisturbed sample of a soil body, and the connector and the steel wire rope are used for lifting and lowering the sample tube; a detachable structure is adopted between the soil cutting ring cutter and the sample tube, and a telescopic elastic buckle structure is adopted between the outer sleeve and the joint, so that the sample tube is convenient to fix and replace. The scheme provided by the invention has the beneficial effects that the undisturbed sample of the soil body in the drill hole can be continuously and quickly collected ...

High-concentration photoelectric and photo-thermal coupling salinity gradient power generation system applied to plant factory

The invention relates to a high-power condensation photoelectric photo-thermal coupling salinity gradient power generation system applied to a plant factory, which is composed of a photoelectric photo-thermal unit, a salinity gradient power generation unit and a greenhouse unit which are connected in sequence, and by controlling the flow of seawater and fresh water, a micro-through pipe is tightly attached to a semiconductor power generation plate to exchange heat with the semiconductor power generation plate and store a part of heat in an energy storage box; a fan turbine is pushed by steam pressure difference, redundant heat in the energy storage box is used for maintaining the environment temperature in the greenhouse, and fresh water generated after salinity difference power generation is purified and then used for maintaining the humidity in the greenhouse; at night, heat in the energy storage box is used for maintaining the temperature; and electric heating is adopted to maintain ...

Anti-cancer composition prepared from DC cells and monoclonal antibodies

The invention relates to an anticancer composition prepared from DC cells and monoclonal antibodies. A mouse anti-PD-L1 monoclonal antibody is prepared through a hybridoma technology, a hybridoma cell strain capable of stably secreting high-specificity anti-PD-L1 is screened out, ascites is prepared to obtain the high-specificity and high-affinity anti-PD-L1 monoclonal antibody, and the antibody can effectively inhibit proliferation of tumor cells and reduce expression of PD-L1 protein; meanwhile, the PD-L1 monoclonal antibody and the DC cell loaded with the tumor antigen are used together, so that the growth of tumor tissues can be effectively inhibited, and the tumor killing activity of an organism can be improved.

CRYSTAL FORM AND SALT FORM OF 7H-PYRROLO[2,3-D]PYRIMIDINE COMPOUND AND PREPARATION METHOD THEREFOR

Disclosed are a crystal form and a salt form of 7H-pyrrolo[2,3-d]pyrimidine compound and a preparation method therefor, and the use of the crystal form and salt form in the preparation of a drug for treating arthritis.

REPLICATIVE ADENOVIRUS TYPE 4 VECTOR RECOMBINANT MARBURG VIRUS DISEASE VACCINE

Provided are a method for preparing a replicative adenovirus type 4 vector recombinant virus for stably expressing a Marburg envelope glycoprotein, and the use of the replicative adenovirus type 4 adenovirus vector recombinant virus in vaccines for preventing Marburg virus diseases. The recombinant virus has a particle structure which is completely consistent with that of human adenovirus type 4 (HAdV-4 or Ad4), an adenovirus E3 region is completely deleted from a genome, and an exogenous gene expression cassette is embedded into a site after an adenovirus genome packaging signal and before an E1 region sequence. After cells are infected, a Marburg virus Angola strain envelope glycoprotein can be stably expressed.

MEDICAL YTTRIUM-90 CARBON MICROSPHERE, AND PREPARATION METHOD THEREFOR

A medical yttrium-90 (90Y) carbon microsphere used for the treatment of tumours, and a preparation method therefor. The medical yttrium-90 series of carbon microspheres uses a series of carbon microspheres to adsorb a90YCl3 solution and ethylene diamine tetraacetic acid disodium salt solution generated complex (90Y-EDTA) to prepare medical yttrium-90 series carbon microspheres.

Quick installing the system of injection molding machine mould

... 本实用新型公开了一种注塑机模具快速安装系统，包括注塑机工作台，设置在工作台上的正相对的动模座板和定模座板，带有顶出机构的模具，以及模具吊装装置，其中动模座板上设置有与模具顶出机构位置相对应的顶出装置，所述动模座板和模具之间还设置有与动模座板上的顶出装置相匹配的动模板，所述定模座板上还设置有带有模具对中定位孔的定模板，模具和定模板相对的一侧上设置有对中定位件，模具上的对中定位件和定模板上的模具对中定位孔相适应，其中所述模具和定模板之间、或者模具和动模板之间还设置有相匹配的模具辅助定位装置。 ...

Industrial online automatic titration system and method for degreasing agent concentration detection

The invention relates to the technical field of industrial on-line detection, in particular to an industrial on-line automatic titration system and method for degreasing agent concentration detection, and the system comprises a quantitative sampling device, an acid adding device, a titration device, a flushing device, a pollution discharge device and a quick connection joint, the quantitative sampling device is used for quantitatively sucking and injecting a working solution to be detected into the titration device, the acid adding device is used for equivalently injecting a titrant with known concentration into the titration device at a constant speed, and the titration device comprises a neutralization vessel and a magneton stirrer; the neutralization vessel is used for receiving a solution injected by the quantitative sampling device and the acid adding device, and the magneton stirrer is arranged in the neutralization vessel. The online titration equipment is controlled by the PLC, ...

Building keel bearing capacity detection device and detection method

The invention relates to the field of building keel detection, and particularly discloses a building keel bearing capacity detection device which comprises a rack, a bearing mechanism installed on the rack and a loading mechanism installed on the rack, the loading mechanism comprises a lifting guide rod, a vertical weight block and a limiting supporting plate, the lifting guide rod is arranged on the rack, and the vertical weight block is arranged on the lifting guide rod. The multiple vertical weights are sequentially arranged on the lifting guide rod in a sliding mode in the vertical direction, and the vertical weights and the lifting guide rod freely slide; a mounting rod is arranged on the machine frame, the limiting supporting plate is connected to the mounting rod and corresponds to the vertical weight, the limiting supporting plate is attached to the bottom wall of the corresponding vertical weight, and a driving assembly used for driving the limiting supporting plate to move is ...

Uniform flow field sampling method for stationary pollution source exhaust

The invention discloses a uniform flow field sampling method for stationary pollution source exhaust. According to the method, boundary working condition parameters of stationary pollution source exhaust are detected; inputting the boundary working condition parameters into a Fluent solver integrated in the smoke dust and flue gas sampling instrument to execute simulation calculation so as to obtain a stationary pollution source exhaust cross-section velocity cloud picture and a concentration distribution area picture of each pollutant; and according to a simulation result, selecting measuring points distributed in a stationary pollution source exhaust uniform flow field to sample pollution source flue gas components, and selecting an area with the pollutant average concentration on a stationary pollution source exhaust cross section to sample particulate matter concentration. According to the method, the defects of traditional stationary pollution source exhaust sampling are overcome, ...

Drinking water bin equipment integrating photovoltaic system, energy storage power supply system and water purification system

The invention discloses photovoltaic, energy storage power supply and water purification system integrated drinking water bin equipment which comprises an integrated box body, a control system is arranged on the integrated box body, a partition plate is arranged in the integrated box body and divides the interior of the integrated box body into two independent spaces, namely a drinking water bin and an energy storage bin, and a mounting panel is arranged at the top of the integrated box body; a photovoltaic panel is arranged at the top of the mounting panel, a plurality of storage batteries are arranged in the energy storage bin through a mounting mechanism, a water purifying tank is arranged in the drinking water bin, and reverse osmosis water purifiers are arranged in the drinking water bin on the two opposite sides of the water purifying tank. A series of structures are arranged, the drinking water bin, the photovoltaic panel and the energy storage bin are integrated, photovoltaic power ...

Control method and system for double-shaft excitation phase modifier under depth phase leading

The invention discloses a control method and system for a double-shaft excitation phase modifier under depth phase advancement. The control method comprises the following steps: determining the type and the operation condition of the double-shaft excitation phase modifier; determining a control strategy according to the type and the operation condition of the double-shaft excitation phase modifier; and controlling the double-shaft excitation phase modifier based on the control strategy so as to enable the double-shaft excitation phase modifier to maintain safe and stable operation under a deep phase leading working condition. The method has no special requirements on the original excitation control and treatment mode of the phase modifier, is suitable for a double-shaft excitation phase modifier of which the d shaft independently provides excitation and a double-shaft phase modifier of which the d shaft and the q shaft jointly provide excitation, and is better in adaptability and robustness ...

Deep learning-based sequential network node importance evaluation method

The invention discloses a sequential network node importance evaluation method based on deep learning, and the method comprises the steps: calculating the eigenvector centrality of nodes for each time layer network of a sequential network, and obtaining the importance order of the nodes of the time layer network according to the eigenvector centrality; obtaining a vectorized representation of the node based on the current moment and previous information of the node using a recurrent neural network; judging a sorting interval corresponding to each node by using a full-connection neural network; and carrying out weighted fusion on two node importance sorting results obtained by calculation to obtain a final importance sorting of the nodes. The method can be applied to the identification of important nodes in a time sequence complex network, and the time sequence network node importance measurement method SSAM based on feature vector centrality and the recurrent neural network are fused into ...

BUILT-IN ELECTRODE ELECTRICAL CAPACITANCE TOMOGRAPHY SENSOR

A built-in electrode electrical capacitance tomography sensor, characterized in that the electrical capacitance tomography sensor is a barrel sensor, and sequentially comprises, from inside to outside, an array distribution electrode (1), an electrode insulating sleeve (2), a flange outer tube (3), an insulating tube (4) and a signal transmission line. The array distribution electrode (1) includes N electrode sheets of the same size and consisting of measurement ends and fixed ends, N being an integer of 8-16. The electrode is connected to an electrical capacitance tomography signal acquisition system (13) by means of a transmission line, and the acquired electrical capacitance data is sent to the electrical capacitance tomography signal acquisition system (13) by means of a signal transmission line, and is then sent to an imaging computer by means of the electrical capacitance tomography signal acquisition system (13) so as to complete image reconstruction.

PILE TOP PUSHING AND POSITIONING DEVICE

A pile top pushing and positioning device, comprising a pile top positioning base (101). The bottom of the pile top positioning base (101) is provided with a positioning groove (103) matching the pile top of an engineering pile (102). A supporting frame (104) is provided above the pile top positioning base (101). A lift adjustment device (105) is connected between the supporting frame (104) and the pile top positioning base (101). A three-direction jack (106) and a locking device (108) that matches and is fixed to a bottom plate of a bearing platform (107) are fixed on a top plate of the supporting frame (104).

HEAT CONDUCTIVE ALUMINIUM ALLOY AND USE THEREOF

A heat conductive aluminium alloy, comprising: 5.0-11.0 weight% of Si, 5.0-11.0 weight% of Si, 0.4-1.0 weight% of Fe, 0.2-1.0 weight% of Mg, less than 0.1 weight% of Zn, less than 0.1 weight% of Mn, less than 0.1 weight% of Sr, and less than 0.1 weight% of Cu. The aluminium alloy has a tensile strength of not less than 250 MPa, a yield strength of not less than 150 MPa, an elongation of not less than 3.5%, and a heat conductivity coefficient of not less than 150 W/(m•K).

METHOD FOR MOUNTING MAIN PIPELINE OF REACTOR NUCLEAR POWER STATION COOLANT SYSTEM

Disclosed in the invention is a method for mounting a main pipeline of a pressurized water reactor nuclear power station coolant system, which is characterized in that: the main pipeline of the pressurized water reactor nuclear power station reactor coolant system is constituted of a cold segment (41) and a hot segment (42), and a steam generator is connected directly to a main pump. The invention provides a method for mounting the main pipeline without a transition segment, so that mounting and welding the main pipeline can be performed by providing only a pressure vessel or a steam generator. The invention solves the technical restriction problem in the known technique of the main pipeline mounting that the main pipeline can be in operation only when a steam generator or a main pump is provided after a pressure vessel is provided. A feasible method for shortening the construction time limit of the nuclear power station is provided in the invention, in which field numerical control technique ...

PRIMARY FREQUENCY MODULATION CONTROL METHOD AND APPARATUS FOR DYNAMIC ADJUSTMENT BASED ON CHARACTERISTIC OF VALVE FLOW

A primary frequency modulation control method and apparatus for dynamic adjustment based on a characteristic of a valve flow. The method comprises the following steps: periodically receiving a feedback message sent by a valve control system (201); determining a characteristic state of a valve flow according to a valve opening degree in the feedback message (202); and when a grid frequency fluctuates, sending a frequency modulation instruction according to the characteristic state of the valve flow, to instruct the valve control system to adjust the valve opening degree (203). It is implemented that when a grid frequency fluctuates, a suitable scale-up coefficient is chosen according to a characteristic of a valve flow, thereby adjusting the valve flow and further satisfying requirements of a grid.

Bud ware is got to nail scissors formula

... 本实用新型一种指甲剪式取芽器，包括钳柄，钳柄包括一端固定在一起的上钳柄和下钳柄，上钳柄和下钳柄的另一端通过销轴与长转柄的一端连接，使长转柄可上下活动，靠近销轴的上钳柄下方设置有切割腔，切割腔下方的下钳柄上设置有底座，切割腔与底座之间有空隙。本实用新型的有益效果是，采用上宽下窄的切割腔，对茎秆进行切割，芽体避免受到伤害；底座用来放置茎秆切割，其直径小于切割腔的内径，在切断茎秆时，向上挤出芽体，芽体精度高，更加符合选育的要求；采用长转柄下压进行切割施压，操作简单，安全高效。 ...

Conveying belt detection system and method based on AI and laser monitoring technology

The invention relates to the technical field of conveying belt detection, in particular to a conveying belt detection system and method based on the AI and laser monitoring technology, and the system comprises an equipment state recognition module, a belt detection module and an equipment response module. Judging whether the equipment is abnormal or not, storing all the collected data information into a database, and managing the data; the belt detection module is used for analyzing the shot abnormal images of the belt and judging the state of the belt; according to the state of the belt, the equipment judges whether a shutdown instruction is sent or not through the equipment response module; whether the belt is abnormal or not is judged through voiceprint recognition, the state of the belt is detected, early warning is conducted, and stable production operation is guaranteed.

Self-adaptive SPI (Serial Peripheral Interface) device and self-adaptive time sequence calibration method

The invention discloses a self-adaptive SPI (Serial Peripheral Interface) device and a self-adaptive time sequence calibration method. The self-adaptive SPI device comprises a master device interface and a slave device interface, the master device interface and/or the slave device interface comprises a data buffer, a clock source, an interface controller, a training verification sequence, a training receiving register and an interface sequential circuit; the training verification sequence is interactively connected with the training receiving register, the training receiving register is interactively connected with the data buffer, the data buffer is interactively connected with the interface sequential circuit, and the output end of the interface controller is respectively connected with the data buffer, the interface sequential circuit and the input end of the clock source. The self-adaptive time sequence is realized, the time sequence does not need to be debugged, and the debugging efficiency ...

Novel CO2 marine transfer and storage system

The invention discloses a CO2 marine transfer and storage system. The CO2 marine transfer and storage system is composed of a CO2 transmission part, a CO2 loading and unloading part, a CO2 transportation part, a CO2 injection part and a CO2 storage part. The CO2 land storage terminal has wharf loading conditions, is conveyed to the CO2 filling device through a land pipeline to fill the CO2 transport ship, is unloaded at a wharf through the CO2 transfer system after arriving at a destination, and is conveyed to the CO2 injection module through a pipeline to be injected into a land or seabed CO2 storage place for storage. A CO2 land storage terminal does not have wharf loading conditions, the CO2 land storage terminal is conveyed to a CO2 offshore floating storage device through a pipeline, a CO2 transport ship is moored with the CO2 land storage terminal in a tandem or side-by-side mode, CO2 filling is completed through hose conveying, and after the CO2 transport ship reaches a target sea ...

Rail intersection voice flash alarm system

The invention discloses a rail intersection voice flash alarm system which comprises a transmitting end and a receiving end, the transmitting end is installed on an electric locomotive, the receiving end is placed in the center of an intersection, the receiving end comprises a battery and a controller, the controller comprises a single chip microcomputer, and the single chip microcomputer is connected with an alarm, a communicator and a memory. And the communicator can receive a signal transmitted by the transmitting end. The method is used for the intersection without the red and green signal lamps, and solves the problem of potential safety hazards caused by a view blind area at the intersection in the prior art.

INK FILLING DEVICE FOR INK CARTRIDGE

The present invention provides an ink filling device for an ink cartridge (1), the ink filling device comprising a base (2), an upper casing (3) connected to the base (2) and an ink filling container (4) for containing ink. The upper housing (3) has an ink cartridge receiving cavity (38) for placing the ink cartridge (1). An ink filling interface (34) to be joined to an ink outlet (41) of the ink filling container (4) and an ink filling needle (33) to be inserted into an ink filling hole (11) on the ink cartridge (1) are further disposed on a top wall (31) of the upper casing (3). The ink filling container (4) is a negative-pressure ink filling container capable of extracting air from the ink cartridge in advance.

FACE MASK, VENTILATION THERAPY DEVICE SYSTEM AND METHOD EXECUTED BY VENTILATION THERAPY DEVICE SYSTEM

Provided are a face mask, a ventilation therapy device and a method executed by the ventilation therapy device, which belong to the field of ventilation therapy devices. The face mask comprises: a face mask main body; a collection unit arranged on the face mask main body, wherein the collection unit is used for collecting eye movement data of a user's eyes, and the eye movement data comprises movement data of the user's eyes; and an output unit, wherein the output unit is connected to the collection unit and is used for outputting the eye movement data. By means of the face mask, the ventilation therapy device system and the method executed by the ventilation therapy device system, an operation intention expressed by a user by means of the eyes can be identified, so as to facilitate the subsequent control of a ventilation therapy device, thereby greatly improving the user experience.

ANTI-LOOSENING WASHER FOR THREADED CONNECTOR AND PREPARATION METHOD THEREFOR

Disclosed is an anti-loosening washer (100) for a threaded connector (200) and a preparation method therefor, the anti-loosening washer (100) comprising an upper washer (1) and a lower washer (2), wherein a plurality of first ratchets (3) are provided at the bottom of the upper washer (1), and a plurality of second ratchets (4) are provided at the top of the lower washer (2); the first ratchet (3) has a wide surface (31) attached to the second ratchet (4); the wide surface (31) is a spiral surface, with a middle axis (11) of the upper washer (1) being an axis (11a), formed by the helical motion of a generatrix (12), spaced apart from the axis (11a), around the axis (11a); and the helix angle of a wire (13) at the median diameter of the spiral surface is greater than the helix angle of the threaded connector (200).

Mounting structure , door and vehicle

... 本实用新型公开了种安装结构、车门及车辆，所述安装结构包括第安装件及第二安装件，所述第安装件上设置有卡爪，所述第二安装件上设置有与所述卡爪配合卡接的卡槽，所述第二安装件上还设置有在所述卡爪卡于所述卡槽中后用以对所述卡爪施加垂直于所述卡爪进入所述卡槽的方向的压紧力以压紧所述卡爪的防脱部件。本实用新型提供的安装结构、车门及车辆中，第安装件在第二安装件上的安装牢固，不易脱落。 ...

Urban carbon monitoring system and method based on artificial intelligence

The invention discloses an urban carbon monitoring system and method based on artificial intelligence, and the method comprises the steps: obtaining historical carbon emission monitoring data, carrying out the spectrum drawing, obtaining a historical carbon emission spectrum, arranging a spectrum gas sensor, and obtaining an urban gas emission spectrogram; obtaining a carbon emission region characteristic model based on the historical carbon emission spectrum; and inputting the urban gas emission spectrogram into the carbon emission region characteristic model for carbon emission characteristic analysis to obtain an analysis result, and monitoring urban carbon emission based on the analysis result. According to the invention, the model is trained according to the carbon emission characteristics, the data of all gases emitted by the city can be input into the model for intelligent analysis by collecting the generation or emission data of all gases in the city and through the carbon emission ...

Spoke disc pressing forming die, forming mechanism and forming process

The invention relates to a spoke disc swaging forming die, a forming mechanism and a forming technology.The spoke disc swaging forming die comprises an upper die base, a lower die base, an ejector and a swaging plate, and the ejector is placed in a female die cavity of the lower die base and can be driven to move up and down; the lower surface of the upper die base is provided with an upper die male die insert arranged opposite to the ejector in the vertical direction. The lower surface of the upper die base is further provided with a plurality of upper die nitrogen springs and a plurality of upper die discharging screws around the upper die male die insert. A male die penetrating hole and a plurality of limiting holes are formed in the material pressing plate, the limiting holes are located around the male die penetrating hole, the material pressing plate is arranged on the upper die male die insert in a penetrating mode through the male die penetrating hole, and the material pressing ...

Aluminum alloy and aluminum alloy structural member

The invention provides an aluminum alloy which comprises the following components in percentage by mass: 8%-11% of Si, 0.01%-0.4% of Cr, 0.001%-0.01% of P, 0.001%-0.05% of Sr, less than 0.12% of Fe, less than 0.005% of Mn and 87.5%-91.988% of Al. By strictly controlling the content of Mn and Fe and containing specific amounts of Si, Cr, P and Sr elements, the aluminum alloy which has ultrahigh elongation and can keep good die-casting property at the same time can be obtained. The aluminum alloy can have ultrahigh elongation without heat treatment, and can be suitable for various structural parts with higher requirements on the elongation.

POWER SUPPLY CONTROL METHOD AND APPARATUS FOR COMMUNICATION NETWORK

A power supply control method and apparatus for a communication network. The method comprises: acquiring power supply data of one or more power supply circuits in a communication network and current electricity consumption data of an electricity consumption load in the communication network, wherein the power supply data at least comprises an output voltage of the power supply circuits (S102); and according to the power supply data and the current electricity consumption data, adjusting the output voltage of the power supply circuit in a predetermined ratio via a voltage adjustment circuit (S104).

Method for evaluating cleaning of submarine cable riprap dam

The invention provides an evaluation method for cleaning a submarine cable riprap dam. The evaluation method comprises the following steps: S100, acquiring simulation parameters of stones of the riprap dam; s200, determining a working condition; s300, modeling is conducted on the riprap dam; s400, coupling is conducted through CFD-DEM, simulation analysis is conducted on the process that the water jet impacts the riprap dam, and the starting flow speed of the water jet needed by stone movement and the safety flow speed range of the water jet for preventing submarine cables from being damaged are calculated; and S500, selecting the optimal water flow velocity of the water jet according to the starting flow velocity and the safe flow velocity range. By means of the evaluation method, the optimal water jet flow velocity can be obtained when the riprap dam is cleaned through the water jet, stones above and around the submarine cable can be cleaned up at the water flow velocity, and the submarine ...

BACKUP ENERGY-STORAGE APPARATUS FOR DIGITAL-SUBSCRIBER-LINE ACCESS DEVICE, AND METHOD FOR CONTROLLING SAME

Disclosed are a backup energy-storage apparatus for a digital-subscriber-line access device, and a method for controlling same; said apparatus comprises a control module, an energy storage module, and a switchover module connected to the output terminal of the energy storage module, the output terminal of the switchover module being arranged connected to a user-terminal load; the input terminal of the control module is arranged connected to a power supply terminal, and its output terminal is connected to the control terminal of the switchover module; the energy storage module is arranged such that: it is connected to the power supply terminal, and when the power supply terminal is powered on, stores electrical energy provided by the power supply terminal; the control module is arranged such that: when a power failure of the power supply terminal is detected, the control module controls the switchover module to switch from a disconnected state to an activated state, causing the energy storage ...

INTELLIGENT OIL PUMPING CONTROL METHOD AND INTELLIGENT OIL PUMPING UNIT

Disclosed are an intelligent oil pumping control method and an intelligent oil pumping unit. The intelligent oil pumping unit comprises a main electric motor (15), a speed reducer (8), a crank (9), a connecting rod (6), a walking beam (3), a balance boom (7), a bracket (5), a horsehead (2), a base (12), a brake device (13), a beam hanger (1), a load sensor (17), a stroke process measurer, a safety limiting device and a digital control cabinet (14). The oil pumping unit has the characteristics of safety and reliability, realizes the intelligent optimization and adjustment of stroke times and balance of the oil pumping unit, increases well yields and the efficiency of the oil pumping unit, and realizes remote data transmission and remote control of opening and closing of the well by means of seamless access to an oil field computer network system, thereby simplifying operation, being convenient and fast and labour-saving, achieving energy savings and emission reduction, and increasing economic ...

SEMISOLID DIE-CASTING ALUMINUM ALLOY AND METHOD FOR PREPARING SEMISOLID DIE-CASTING ALUMINUM ALLOY CASTINGS

Provided are a semisolid die-casting aluminum alloy and a method for preparing semisolid die-casting aluminum alloy castings, wherein, the semisolid die-casting aluminum alloy contains alloy elements, unavoidable impurities, and the balance of aluminum elements; on the basis of the total weight of the semisolid die-casting aluminum alloy, the alloying elements include: 7.5 wt% to 9.5 wt% of Si, 3.5 wt% to 4.8 wt% of Cu, 0.5 wt% to 0.75 wt% of Mn, 0.01 wt% to 0.5 wt% of Ti and 0.01 wt% to 0.35 wt% of rare earth elements.

POLYMORPH OF HDAC6-SELECTIVE INHIBITOR AND APPLICATION THEREOF

Disclosed in the present invention are a polymorph A of a compound represented by formula (I), and an application thereof in preparation of drugs for treating HDAC6-associated diseases.

Heating ice-melting device of optical cable

A heating ice-melting device of an optical cable relates to the field of optical cables and comprises optical cables laid between adjacent transformer substations, a low-voltage heating power supply arranged at a transformer substation end and other corresponding lines. A temperature sensor is arranged on the surface of the optical cable, a heating device arranged on an optical cable body and an outer layer protection sleeve form a heating unit, and the heating unit is composed of a plurality of sets of loop devices and distributed in the length direction of the cable at equal intervals. Wherein the low-voltage heating power supply is a power supply led out by a transformer substation after power transformation and is connected with the heating device, a temperature control module is arranged in the low-voltage heating power supply, the input end of the temperature control module is correspondingly connected with the plurality of temperature sensors, and the output end of the temperature ...

Adjustable base hidden type protective fence

The invention discloses an adjustable base hidden type protective fence which comprises a stand column, a guardrail is arranged on one side of the stand column, a support is arranged on the lower surface of the stand column, a bottom plate is arranged on one side of the support, an adjusting device is arranged on the surface of the stand column and comprises a sliding rod, and the sliding rod is fixedly connected with the support. One side of the sliding rod is fixedly connected with a fixing block, one side of the fixing block penetrates through the stand column and is in sliding connection with the stand column, a first hole is formed in the surface of the fixing block, one side of the stand column is fixedly connected with a mounting block, and a second hole is formed in the surface of the mounting block; a positioning plate is slidably connected to the inner wall of the second hole in the surface of the mounting block, the positioning plate is connected with the first hole in the surface ...

Warning type protective fence capable of being rapidly disassembled and assembled

The invention discloses a warning type protective fence capable of being quickly disassembled and assembled, which comprises a plurality of stand columns, stabilizing pieces are arranged below the plurality of stand columns, a fence body is arranged between the plurality of stand columns, a warning board is arranged on the surface of the fence body, a top plate is arranged above the stand columns, and a bottom plate is arranged below the fence body. The assembling devices are arranged on the surface of the stand column body, the number of the assembling devices is multiple, each assembling device comprises a square sleeve, the square sleeves are fixedly connected with the surface of the stand column body, four square holes are formed in the surfaces of the square sleeves, and square blocks are slidably connected to the inner walls of the square holes. The phenomenon that a wrench and a bolt cutter need to be used for assistance when the fence is disassembled and assembled can be effectively ...

Radiator and lighting device

In order to solve the problems that an existing vehicle lighting device radiator is insufficient in space utilization rate and heat dissipation efficiency, the radiator comprises a first substrate and a plurality of first heat dissipation fins, and the first heat dissipation fins are arranged on the first substrate side by side at intervals in the first preset direction. The radiator meets the limitation of the following relational expression 1 and relational expression 2: H belongs to {[(delta1 + delta2)/2-1.2]/tan2 theta, [(delta1 + delta2)/2 + 1.2]/tan2 theta} relational expression 2. Meanwhile, the invention further discloses a lighting device comprising the radiator. According to the radiator, the radiating efficiency is improved, meanwhile, the size of the radiator is effectively reduced, the needed occupied space is reduced, and the actual loading requirement is met.

Campus take-out meal taking cabinet and use method thereof

The invention discloses a campus take-out food taking cabinet and a using method thereof, the campus take-out food taking cabinet comprises a take-out cabinet, the top of the take-out cabinet is fixedly connected with a connecting box, and the left side and the right side of the inner wall of the connecting box are fixedly connected with hydraulic rods. Through the arrangement of the hydraulic rod, the T-shaped rod, the volute fan, the corrugated hose, the air inlet pipe and the exhaust pipe, the hydraulic rod can work to push the T-shaped rod to move left and right, the T-shaped rod moves left and right to drive the volute fan to move, then the volute fan is started to work, and the volute fan works to generate negative pressure to extract air in the take-out cabinet; air enters a corrugated hose and enters a hollow pipe through an air inlet pipe, finally, the hollow pipe is matched with an exhaust pipe to exhaust the air to the outside to achieve air purification in the take-out cabinet ...

NON-DEAD-ZONE COLD ATOM INTERFEROMETER WITH HIGH FREQUENCY OUTPUT

Provided is a non-dead-zone cold atom interferometer with high frequency output, comprising: a three-dimensional magnetic optical trap, wherein predetermined included angles are formed between a first group of optical splitters and an atomic beam path; a first group of optical diaphragms are arranged at the edge of the first group of optical splitters and downstream of the atomic beam path, and the first group of optical diaphragms shield laser light split by the first group of optical splitters; a second group of optical splitters and the first group of optical splitters are arranged in an orthogonal manner, and a second group of optical diaphragms are arranged at the edge of the second group of optical splitters and downstream of the atomic beam path, and the second group of optical diaphragms shield laser light split by the second group of optical splitters.

FULLY SYMMETRIC 5-AXIS TOOL GRINDER AND GRINDING WHEEL HEADSTOCK THEREOF

A fully symmetric 5-axis tool grinder and a grinding wheel headstock. The grinder comprises a grinder base (2) and a pillar (56). A slide rail (4) is arranged on an inner side surface of the pillar vertically. A grinding wheel headstock (1) is arranged on the slide rail. The grinding wheel headstock comprises a torque motor (16) arranged vertically. A lower portion of the torque motor is connected to a horizontal main shaft (21) through a turntable bearing. Grinding wheels (23) rotating about the axis of the main shaft are arranged on two sides of the main shaft symmetrically. The grinding wheel headstock comprises a large belt wheel (9) that is located on the top and is driven by a main shaft motor (10). The large belt wheel is connected to a main shaft belt wheel (20) through a wide synchronous belt (11). The main shaft belt wheel sleeves and is connected to the central portion of the main shaft, and drives the main shaft. Two groups of main shaft motors are arranged on two sides of the ...

Thread cutting machining method based on dynamic programming

The invention discloses a thread cutting machining method based on dynamic programming. A cutting starting point scheme for recalculating an actual cutting position and then judging whether a synchronizing signal is sent or not is provided. The numerical value of a main shaft encoder is obtained in each interpolation period, and preprocessing and speed planning are carried out according to the numerical value of the encoder, so that a dynamic planning mode that the whole speed model establishes a relation with the main shaft is realized; a thread transition compensation algorithm of variable-pitch and variable-direction threads is provided based on a dynamic planning mode; the algorithm provided by the invention not only can realize smooth transition until the preset position relation with the main shaft is established again when the rotating speed of the main shaft fluctuates greatly, but also can ensure that the cutter enters the same entry point when the rotating speeds of the main shaft ...

Load model modeling method and system considering high-proportion power electronic equipment

The invention provides a load model modeling method and system considering high-proportion power electronic equipment, and the method comprises the steps: firstly building a comprehensive load model comprising an equivalent distributed new energy power generation module and an equivalent frequency conversion load module for a transformer substation comprising the high-proportion power electronic equipment; the equivalent distributed new energy power generation module and the equivalent variable-frequency load module are used for equivalently simulating dynamic characteristics of a large number of distributed new energy power generation equipment and variable-frequency loads in a power supply and distribution area of a load station; on the basis, a method for determining model parameters of an equivalent distributed new energy power generation module and an equivalent variable-frequency load module based on statistical integration is provided, so that the comprehensive load dynamic characteristics ...

Method for culturing and propagating bioflocculant producing bacteria by using sludge

The invention discloses a method for culturing and propagating bioflocculant producing bacteria by using sludge. The method comprises the following steps: 1, selecting seed strains: adopting paecilomyces bacteria as seed bacteria for culturing and propagating; 2, preparing a culture medium, wherein domestic sludge is used as a main raw material and auxiliary materials are added; 3, sterilizing at high temperature, cooling, and inoculating paecilomyces seed bacteria; 4, culturing and propagating to obtain a sludge-based flocculation fermented grain material; the method has the two advantages that the links of purification, drying, packaging and the like in the traditional commercial microbial flocculant production are omitted, and the cost of the biological flocculant is greatly reduced; a large number of microorganism viable bacteria and metabolites thereof with a flocculation function are reserved; the sludge-based flocculation fermented grains replace commercial microbial flocculants ...

Laser radar receiving system debugging device and method

The invention discloses a laser radar receiving system debugging device which comprises a signal receiving system, an auxiliary debugging control system and a data collecting and processing system. The signal receiving system comprises a receiving reflector and a receiving optical fiber; the data acquisition and processing system comprises a lens, an optical filter, a photoelectric detection assembly and a computer; the auxiliary debugging control system comprises an optical fiber electric three-dimensional adjusting device and a shielding circular plate, the receiving optical fiber is connected with the optical fiber electric three-dimensional adjusting device, and the computer is connected with the optical fiber electric three-dimensional adjusting device; the shielding circular plate is used for being placed on the receiving reflector, the circle centers of the shielding circular plate and the receiving reflector coincide, and the diameter of the shielding circular plate is larger than ...

Material storage device for cement masonry

The material storage device for cement masonry comprises a storage box, a partition plate is fixedly connected to the lower left end of an inner cavity of the storage box, heating plates are embedded in the left side and the top of the partition plate correspondingly, and a plurality of first conveying rollers distributed at equal intervals are movably connected to the left end of the inner cavity of the storage box; the lower end of the inner cavity of the storage box is movably connected with a plurality of second conveying rollers distributed at equal intervals, and the upper end of the inner cavity of the storage box is movably connected with a plurality of third conveying rollers distributed at equal intervals. The cement storage device is provided with a first motor, a third conveying roller, a fourth conveying roller, a turbulent flow belt, a second conveying roller, a first conveying roller and a turbulent flow plate, cement in the storage box can be disturbed, the caking phenomenon ...

SVG optimization control method and device based on voltage closed loop

The invention discloses an SVG optimization control method and device based on a voltage closed loop. The SVG optimization control method comprises the steps that an SVG is put into operation on the bus side of a new energy station line; during the steady-state operation period of the system, the SVG is put into operation, and the AVC substation is accessed to keep the current steady-state control mode unchanged; during the system fault transient operation period, the SVG voltage keeps continuous operation without off-line operation under a preset value, and a constant voltage mode is adopted to realize voltage closed-loop control; according to a relation between a preset voltage steady-state reference value, a preset voltage hysteresis upper limit value, a preset voltage hysteresis lower limit value, a preset voltage steady-state upper limit value and a preset voltage steady-state lower limit value of voltage closed-loop control and an actually-measured voltage value, control strategy ...

MINIATURE DRILL BIT AND MACHINING METHOD THEREFOR

A miniature drill bit. The miniature drill bit comprises: a first rake face, a first flank face, a second rake face and a second flank face that are arranged at the position of a drill point; a first spiral groove extending from the drill point to a drill tail, and a second spiral groove symmetrical to the first spiral groove, the first spiral groove being intersected with the first rake face to form a first cutting edge, and the second spiral groove being intersected with the second rake face to form a second cutting edge; and a bias groove arranged at the position of a large-bit area of the drill bit, the bias groove being intersected with the second rake face, so that the length of the second cutting edge is smaller than that of the first cutting edge, and the bias groove being intersected with the second spiral groove.

ALUMINUM ALLOY AND PREPARATION METHOD THEREFOR

An aluminum alloy and a preparation method therefor, the aluminum alloy comprising the following ingredients by weight percent: 8-10% of silicon, 0.2-0.4% of magnesium, 0-0.01% of manganese, 0-0.01% of titanium, 0.1-0.3% of iron, 0.02-0.06% of boron, 0.15-0.3% of cerium and 88.92-91.53% of aluminum. The production method comprises smelting and casting aluminum alloy raw materials successively.

DRILL BIT FOR DRILLING PCB

A drill bit for drilling a PCB comprises a body (10). One end of the body (10) is a drill tip, and a groove and breadth ratio constant segment and a groove and breadth ratio alternating change segment are sequentially disposed from the end where the drill tip is located to the other end of the body (10). A long spiral groove (101) and a short spiral groove (102) that are spirally surrounding and that are not intersected are formed in the outer side of the body. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) is constant at the groove and breadth ratio constant segment. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) changes alternately at the groove and breadth ratio alternating change segment. The short spiral groove of the groove and breadth ratio constant segment is connected to a staggered groove staggered with the short spiral groove. In the drill bit for drilling a PCB, the ...

Automatic demineralized water spraying device of peanut

... 本实用新型公开了花生自动盐水喷淋装置，包括盐水罐、喷淋笼和输液管，盐水罐安装在喷淋笼的上方，喷淋笼内安装贯穿入口至出口的螺旋叶片，螺旋叶片的转轴为空心轴，转轴布满喷淋孔，转轴通过输液管和盐水罐相连通，输液管安装有阀门。本实用新型提高了生产效率，降低了人工成本，且节约资源。 ...

Combination valve, proportional valve, hydraulic system and vehicle

... 本实用新型公开了一种组合阀、比例阀、液压系统和车辆，所述组合阀包括：第一油口和第二油口；第一单向阀，所述第一单向阀的进油口与所述组合阀的第一油口连通，所述第一单向阀的出油口与所述组合阀的第二油口连通；节流阀，所述节流阀连接在所述第一油口和所述第二油口之间；第二单向阀，所述第二单向阀的进油口与所述第一单向阀的出油口连通，所述第二单向阀的出油口与所述第一单向阀的进油口连通，且在所述第二单向阀的进油口与所述第二单向阀的出油口之间的压差大于所述第二单向阀的阈值时所述第二单向阀开启。本实用新型的组合阀，可以有效减少压力震荡，稳定负载反馈信号，实现快速泄压，且组合阀的结构简单，易于制造。 ...

Observation system for satellites with fast imager

The invention discloses an observation system for a satellite with a fast imager, and the system comprises a perception subsystem which collects a real-time observation task; the message analysis subsystem is used for analyzing the message data to obtain message information; the multi-source information comprehensive analysis subsystem is used for generating real-time typhoon characteristic information data according to the message information; the observation element calculation subsystem is used for calculating typhoon satellite observation factors according to the received real-time typhoon characteristic information data in the multi-source information comprehensive analysis subsystem; the observation path planning subsystem is used for obtaining a planned path according to the real-time observation task; and the observation decision subsystem is used for determining an observation decision of a typhoon satellite according to the planned path and the typhoon satellite observation factor ...

Multi-layer frozen beverage and preparation method thereof

The invention provides a multi-layer frozen beverage and a preparation method thereof. The multi-layer frozen drink comprises an outer layer, a middle layer and an inner layer, the outer layer wraps the middle layer, the inner layer is located in a core body of the middle layer and is a sauce core formed by symmetrically distributing at least two strands of sauce around the central axis of the core body, and the sauce core extends from the head of the frozen beverage to the root of the frozen beverage. The inner layer is innovatively designed into sauce cores formed by two strands of sauce, the sauce cores are distributed on the two sides of the center of the core body of the middle layer, the sauce cores extend to the root from the head of the frozen beverage, and due to the design, it can be guaranteed that the sauce cores in the frozen beverage are evenly distributed, so that consumers can always experience the existence of the sauce core materials from front to back when tasting the ...

Power quality disturbance classification method of twin support vector machine based on ITD decomposition and sparrow optimization

The invention discloses a power quality disturbance classification method of a twin support vector machine based on ITD decomposition and sparrow optimization, and the method comprises the following four steps: 1, collecting different types of power quality disturbance signals containing interference by using power quality monitoring equipment; step 2, processing the acquired power quality disturbance signal by adopting ITD decomposition to obtain a series of inherent rotation components (PRC), and screening out effective PRC components by utilizing entropy and hyper entropy of a cloud model; 3, respectively calculating the fuzzy entropy and the energy entropy of the effective PRC component, and sequentially arranging the fuzzy entropy and the energy entropy obtained by calculation to form a feature matrix; 4, dividing the extracted feature data into a test group and a training group, inputting data of the training group into a twinborn support vector machine (TWSVM), searching an optimized ...

MEDICAL YTTRIUM PHOSPHATE CARBON MICROSPHERE AND PREPARATION METHOD THEREFOR

A medical yttrium phosphate carbon microsphere for use in tumor treatment and a preparation method therefor. A medical yttrium phosphate carbon microsphere for use in tumor treatment and a preparation method therefor. The medical yttrium phosphate [90Y32PO4] carbon microsphere is prepared with a carbon microsphere being used to adsorb an yttrium tartrate-90 (90Y-tartaric acid) complex produced by reacting90YCl3 with tartaric acid, then processed with an Na332PO4 solution to produce90Y32PO4 that is then precipitated, solidified, and purified.

Tray

... 本实用新型公开种托盘，属于显示面板包装技术领域。托盘包括：托盘本体，托盘本体为立方体结构，托盘本体的上表面上设置有用于置物的定位卡槽和位于定位卡槽四周的支撑结构；其中，支撑结构包括向托盘本体的上表面下方延伸的至少两级台阶，至少两级台阶中任台阶围绕在定位卡槽四周，至少两级台阶均包含有与上表面平行的支撑面，至少两级台阶的支撑面在上表面所在平面的正投影存在重叠区域。本实用新型解决了支撑结构的抗压能力较差的问题，达到了提高支撑结构的抗压能力的效果。本实用新型用于显示面板的包装。 ...

Power flow adjusting method and system capable of simultaneously meeting power angle stability and voltage stability

The invention discloses a large power grid power flow adjustment method and system capable of simultaneously meeting power angle stability and voltage stability. The method comprises the following steps: forming a Markov process of power flow adjustment capable of simultaneously meeting power angle stability and voltage stability; the Markov process comprises action setting, state setting and reward setting; based on the Markov process, determining a power flow adjustment strategy identification instability mode satisfying power angle stability and voltage stability at the same time; based on the instability mode, determining an actionable device and a calculation action amount of the actionable device; and optimizing the calculation action amount based on a pre-established deep reinforcement learning model of the improved D4PG, determining an action target, and realizing power flow adjustment based on the action target.

Data access system and method

The invention provides a data access system and method, and the system comprises a data access subsystem and a permission search engine, the permission search engine is constructed based on an Elasticsearch technology, the permission search engine comprises a plurality of nodes, and at least one main fragment or copy fragment of a mapping relation between a user of the data access subsystem and a business data access permission is stored in a memory of each node; the data access subsystem is used for receiving an access request for target data sent by a first client and sending an authentication request for judging whether a first user corresponding to the first client has the permission to access the target data to the first node through the micro service; the first node is used for sending an authentication request to the second node so as to obtain a result whether the first user has the permission to access the target data; and the data access subsystem is also used for sending the ...

VERTICAL TURNING-MILLING COMPLEX MACHINING CENTER

A vertical turning-milling complex machining center comprises a horizontally-arranged bed body (6) and a vertically-arranged column (7). The bed body (6) is provided with an X-axis lateral supporting linear track (2) and an X-axis guide screw (5). The bed body (6) is also provided with a uniaxial rotating table (1) which can reciprocate and is driven directly by a first external rotor torque motor. The column (7) is vertically provided with a Z-axis lateral supporting linear track (10), a Z-axis guide screw (9) and a crossbeam (11) that reciprocates up and down. The crossbeam (11) is provided with a transverse Y-axis linear track (13), a Y-axis guide screw (12) and a single-pendulum milling head seat frame that can reciprocate along the Y-axis guide screw (12). The single-pendulum milling head is driven directly by a second external rotor torque motor. The vertical turning-milling complex machining center uses direct-drive technology applied to a B-axis and a C-axis, the motor torque is ...

ALUMINUM ALLOY AND PREPARATION METHOD AND APPLICATION THEREOF

Disclosed are a die-casting aluminum alloy and a preparation method and application thereof. On the basis of the total weight of the aluminum alloy, it comprising: 8-11% by weight of Si, 2.5-5% by weight of Cu, 0.5-1.5% by weight of Mg, 0.1-0.3% by weight of Ni, 0.6-1.2% by weight of Fe, 0.1-0.3% by weight of Cr, 0.03-0.05% by weight of Sr, 0-0.3% by weight of Er, 80.25-88.1% by weight of Al and 0.1% by weight or less of impurities.

CONNECTING ASSEMBLY AND MANUFACTURING METHOD THEREFOR, SEAT AND VEHICLE

A connecting assembly and a manufacturing method therefor, a seat and a vehicle. The connecting assembly comprises: a connecting tube (1), a nut (2) being embedded on the inner wall of at least one end of the connecting tube, the nut being arranged coaxially with the connecting tube; a connecting plate (3), a fixing hole being disposed in the connecting plate; a fastening member (4), the fastening member passing through the fixing hole and having a threaded fit to the nut; the connecting tube is a lightweight alloy component, and the connecting plate is a steel component. By means of the connecting tube being a lightweight alloy component and a nut being embedded on the inner wall of at least one end of the connecting tube, the present connecting assembly enables the fastening member to pass through the fixing hole in the steel connecting plate and have a threaded fit to the nut positioned at one end of the connecting tube, thus achieving a connection between the steel connecting plate ...

Bud ware is got to hand

... 本实用新型一种手压式取芽器，包括内部中空的机身和连接杆，所述机身底部连接底座，所述底座上设置有刀刃向上的下刀片，所述机身顶部竖直固定连接有内部中空的套筒；所述连接杆竖直穿过套筒和机身，所述连接杆的底部安装有刀刃向下的上刀片，所述连接杆的顶部水平设置有手柄。本实用新型双刀片的设置可以同时切断芽两端的茎秆，切断效果好，效率高，速度快，安全性高，且经久耐用，使用期间磨损小、使用寿命长，手柄外部设置有一层橡胶套，可以防止刀柄打滑，并起保温的作用。 ...

Speed limit reminding method and device, electronic equipment and readable storage medium

The invention provides a speed limit reminding method and device, electronic equipment and a readable storage medium, and is applied to an intelligent driving system.The speed limit reminding method comprises the steps that it is determined that the distance between a target vehicle and a speed limit collection device in front of a driving road is lower than a preset threshold value; in response to the fact that the distance between the target vehicle and a speed limiting collecting device in front of the driving road is smaller than a preset threshold value, outputting prompt to a driver according to speed limiting information of the speed limiting collecting device, and after the target vehicle passes through the speed limiting collecting device, outputting prompt information of the speed limiting collecting device to the driver; and recovering the speed limit information of the output prompt to the speed limit information of the driving road. A driver can quickly adjust the vehicle speed ...