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496results about How to "Quick conversion" patented technology

Query system, method and equipment based on conversion from natural language to SQL (Structured Query Language) and medium

The invention discloses a query system, method and equipment based on conversion from a natural language to an SQL (Structured Query Language) and a medium. The query system comprises a data access layer used for receiving a natural language query request of a user; the preprocessing module is used for preprocessing the natural language input by the user to obtain the preprocessed natural language; the deep learning model is used for converting the preprocessed natural language into an SQL (Structured Query Language) statement; the optimization module is used for optimizing the SQL statement to obtain an optimized SQL statement; the database interface module is used for executing the optimized SQL statements and returning query results corresponding to the optimized SQL statements; and the application layer is used for displaying the query result. It can be seen that a large amount of manual data annotation is not needed, the system development and maintenance cost is reduced, the accurate SQL statement is rapidly generated through multi-step processing and the optimization algorithm, and the efficiency of converting natural language query into the SQL statement can be improved.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Large-model-based data large-screen visualization method, apparatus and device, and medium

The invention discloses a data large screen visualization method and device based on a large model, equipment and a medium, and relates to the technical field of data large screens, and the method comprises the steps: obtaining externally input user voice data, carrying out the intention analysis of the user voice data, and determining a query prompt word representing the intention from the user voice data; inputting the query prompt word into a preset large model for analysis, and generating target data corresponding to the query prompt word and a target chart template matched with the query prompt word; and mapping the target data to the target chart template, determining a target chart, and visualizing the target chart. According to the method, the large-screen data display efficiency can be improved.
Owner:ZHONGDIAN DATA IND CO LTD

Smart home scene generation method and device, equipment and storage medium

PendingCN119359976ASimplify the creation processeasy to operateComputer controlImage data processingText entryUser input
The embodiment of the invention provides a smart home scene generation method and device, equipment and a storage medium, and the method comprises the steps: obtaining text input information, and extracting key information from the text input information; at least one sub-scene is obtained through matching according to the key information; and combining the at least one sub-scene to obtain a smart home scene. Through the natural voice processing technology, the natural language text input by the user is analyzed, the smart home scene corresponding to the corresponding smart home control instruction is automatically generated, the operation process of the user is simplified, the creation process of the smart home scene is simplified, and the user experience is improved. The natural language requirement of the user can be quickly and accurately converted into the specific equipment control instruction, the intelligent degree is high, and the user experience is improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI +1

L-threonine aldolase mutant and application of L-threonine aldolase mutant in catalytic synthesis of p-methylsulfonylphenylserine

The invention provides an L-threonine aldolase mutant and application of the L-threonine aldolase mutant in catalytic synthesis of p-methylsulfonylphenylserine, the L-threonine aldolase mutant is derived from pseudomonas, threonine and p-methylsulfonylbenzaldehyde can be used as substrates, and the L-threonine aldolase mutant can be synthesized by using a one-step method. According to the present invention, L-threonine aldolase is adopted as a raw material, pyridoxal phosphate and reduced nicotinamide adenine dinucleotide are adopted as coenzymes, the synthesis of florfenicol intermediate product p-methylsulfonyl phenyl serine is obtained through catalysis, and compared with the wild type L-threonine aldolase, the mutant enzyme has high activity, can effectively improve the conversion efficiency, and can shorten the conversion time; the enzyme and the technical method provided by the invention have the advantages of mild reaction conditions and less pollution, and have good industrial prospects in the production of florfenicol synthesis intermediates.
Owner:WUHAN UNIV

Photocuring 3D printing metal slurry and preparation method thereof

The invention discloses photocuring 3D printing metal slurry and a preparation method thereof.The photocuring 3D printing metal slurry is prepared from, by mass, 30%-77% of organic monomers, 0.001%-20% of dispersing agents, 0.1%-6% of photoinitiators and 10%-67% of composite powder; the composite powder comprises an organic shell and a metal core. The compatibility of an organic matter shell and an organic monomer of the composite powder in the slurry is better, and the chemical interaction force of the surface is larger, so that the dispersion of the composite powder in an organic monomer solution is promoted, and good stability is provided for the photocuring slurry; the refractive index of the organic matter serving as the shell is close to the refractive index of the organic monomer solution, the refractive index difference between the powder and the organic monomer solution is reduced, the curing thickness of the slurry is greatly increased, and the stable photopolymerization slurry with the good curing characteristic is obtained.
Owner:XI AN JIAOTONG UNIV

Valve mechanism for realizing backflow type cylinder deactivation of engine and engine

The utility model discloses a valve mechanism for realizing reverse-flow type cylinder deactivation of an engine and the engine, which can realize switching between a normal working mode and a reverse-flow cylinder deactivation mode of a valve and can realize quick switching between the two working modes according to the working condition of the engine. The main structure comprises an air distribution cam, a hydraulic tappet part, a control valve part, a hydraulic piston driving part, a hydraulic system and the like. By adjusting the control valve component, the protrusion of the gas distribution cam is in the closing period or the oil drainage period of the control valve component, an exhaust valve is normally opened in the exhaust stroke and is opened again in the air inlet stroke, an air inlet valve is closed in the air inlet stroke, backflow cylinder deactivation work of an engine is achieved, fuel economy under the low-speed small-load working condition is improved, and the service life of the engine is prolonged. And the method also plays an important role in exhaust heat management.
Owner:SHANDONG UNIV

Bicontinuous network composite aerogel with large length-diameter ratio shell-core structure in-situ embedded porous silicon carbide foam and preparation method of bicontinuous network composite aerogel

Belonging to the technical field of high temperature resistant composite aerogel, the invention provides a bicontinuous network composite aerogel with large length-diameter ratio shell-core structure in-situ embedded porous silicon carbide foam, which comprises a shell-core structure and a skeleton, the shell-core structure comprises an inner core and a shell layer, the shell layer is of a ceramic silicone rubber layer structure, and the inner core is a SiC nanowire of a continuous network structure; the framework is porous silicon carbide foam with a continuous network structure; wherein the core-shell structure is embedded on the skeleton structure in situ to form an interspersed bicontinuous network composite structure. The invention also provides a preparation method, according to the method, by precisely designing the mechanical distribution of the nanowires, the ceramic skeleton and the porous structure on the coupling characteristic, the multifunctionality, energy absorption and high temperature resistance of the composite aerogel are synergistically optimized, and the composite aerogel has remarkable advantages in the aspects of regulation and control of sound waves, electromagnetic waves and light waves, high-temperature oxidation resistance and vibration resistance. Therefore, the composite material has wide application potential in the fields of aerospace, military protection, electronic equipment, building shock insulation and the like.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Self-adaptive multilingual inter-translation system

The invention discloses a self-adaptive multi-language inter-translation system, and relates to the technical field of multi-language inter-translation, and the self-adaptive multi-language inter-translation system comprises a voice acquisition module, a language analysis module, a semantic recognition module, a bidirectional translation module and a self-adaptive learning module. The translation process is continuously optimized by analyzing the user feedback and the translation result, so that the translation quality can be continuously improved along with time and data accumulation, meanwhile, the forward and reverse translation function provided by the bidirectional translation module ensures that the user can be well supported whether inputting or receiving information, and the user experience is improved. A user can switch languages at any time according to needs, so that communication is smoother, and free flow of information and communication of multi-culture are promoted.
Owner:山东现代学院

Method for positioning pile number of highway mileage pile

The invention relates to the technical field of highway mileage pile number positioning, in particular to a highway mileage pile number positioning method.The highway mileage pile positioning system comprises a laser radar, an industrial camera, satellite positioning equipment, an IMU and an industrial personal computer, the IMU and the industrial personal computer are installed at the central position of the vehicle, and the laser radar and the industrial camera are used for joint calibration to obtain laser point cloud data. According to the invention, rapid, accurate and automatic matching of the highway stake number and the geodetic coordinate is realized. A laser point cloud and vision technology is applied, GPS positioning, IMU inertial navigation, computer image processing and other technologies are fused, the one-to-one correspondence relation between the highway mileage pile and geodetic coordinates is obtained, rapid conversion between the longitude and latitude of the mileage pile and the mileage pile number is achieved, the positioning precision reaches the decimeter level, and a convenient, accurate and efficient information identification method is provided for road maintenance management.
Owner:FUJIAN EXPRESSWAY TECH INNOVATION RES INST CO LTD +1

Method, device and equipment for collecting MODBUS equipment data based on Internet of Things platform and medium

The invention provides a method, system and device for collecting MODBUS device data based on an Internet of Things platform and a medium, and belongs to the technical field of data conversion, and the method comprises the following steps: obtaining point table information of a target MODBUS device, MODBUS channel information for data collection of the target MODBUS device, and point position information configuration; creating a product model, a device model and an object model for the target MODBUS device on the Internet of Things platform, and carrying out mapping relation binding with point location information of data acquisition of the target MODBUS device; reading data from the target MODBUS equipment according to the bound mapping relation, and storing the data according to a preset storage strategy; and converting the read target MODBUS equipment data into standard data which can be identified by the Internet of Things platform. The MODBUS equipment data is efficiently converted into the Internet of Things standard data, the cost period is shortened, and the method is compatible with a multi-equipment platform.
Owner:山东浪潮智能生产技术有限公司

Preparation method and application of two-dimensional composite material

The invention discloses a preparation method and application of a two-dimensional composite material. The preparation method comprises the following steps: adding MXene into formamide, carrying out ultrasonic dispersion to obtain an MXene formamide dispersion liquid, then adding MgAl LDH into the MXene formamide dispersion liquid, carrying out magnetic stirring, washing with absolute ethyl alcohol, and carrying out vacuum drying to obtain a two-dimensional composite material which is marked as MgAl LDH / MXene. The two-dimensional composite material is used for a lithium-sulfur battery diaphragm barrier layer so as to inhibit the shuttle effect of polysulfide. The preparation method is simple and environment-friendly, and the prepared MgAl LDH / MXene two-dimensional composite material is high in specific surface area, has strong affinity to polysulfide, can promote rapid transmission of lithium ions, can provide an instant electron conduction way for adsorbed polysulfide, is applied to a diaphragm barrier layer of a lithium-sulfur battery, and has a good application prospect. The wettability of the electrolyte on the diaphragm and the conversion of polysulfide are enhanced, the problem of volume expansion in the cycle process of the lithium-sulfur battery is relieved, and the redox reaction kinetics is accelerated.
Owner:GUIZHOU UNIV

Multistage formaldehyde removing device based on photocatalyst

The utility model relates to the technical field of formaldehyde removal, and discloses a photocatalyst-based multi-stage formaldehyde removal device which comprises a treatment box, a filter window is arranged on one side of the treatment box, a filter screen is mounted in the treatment box, two sliding columns are fixedly connected to the upper portions of the two sides of the filter screen, springs are mounted on the outer walls of the sliding columns, and the outer walls of the sliding columns are fixedly connected with the filter screen. One ends of the springs are fixedly connected to the upper portions of the two sides of the filter screen, and mounting blocks are mounted on the upper portions of the two sides of the filter screen. According to the utility model, the pushing block is pushed to enable the mounting block to slide on the sliding column, the spring is compressed, and the two fixing blocks are driven to be close to each other, so that the fixing blocks can be separated from the first mounting groove, and the fixing blocks can be reset to enter the first mounting groove under the action of the spring when the pushing block is loosened; therefore, the filter screen can be quickly disassembled and assembled, the filter screen can be conveniently cleaned, and the working efficiency and the performance stability of device operation are effectively improved.
Owner:SUZHOU DAFENG NANO TECH CO LTD

Flat and urgent combined air handling unit

The utility model relates to the technical field of air treatment, in particular to a flat and urgent combined air treatment unit which comprises an air supply box body, an air inlet end of the air supply box body is communicated with the outside, an air feeder is arranged at an air outlet end of the air supply box body, and an air supply outlet of the air feeder is communicated with the inside; a return fan, a return air valve, an exhaust valve and at least one first filter are arranged in the air return and exhaust box body, the air inlet end of the air return and exhaust box body is communicated with the indoor space, the first filter is detachably arranged between the return fan and the air inlet end of the air return and exhaust box body, and the air return and exhaust box body is provided with a return air inlet and an exhaust outlet; the air return port communicates with the air inlet end of the air supply box through an air return valve, and the air exhaust port communicates with the outside through an air exhaust valve. The ordinary-emergency combined air handling unit can be switched between the ordinary working condition and the emergency working condition, the ordinary comfortable air conditioning function can be achieved, and meanwhile the emergency public health event can be dealt with.
Owner:SHANGHAI ARCHITECTURAL DESIGN & RES INST

Adjustable belt conveyor and using method thereof

The invention relates to the technical field of belt conveyors, and discloses an adjustable belt conveyor and a using method thereof.The adjustable belt conveyor comprises a belt, two supporting plates are arranged on the outer side of the belt, rotating rollers are rotationally connected between the two supporting plates through bearings, and a second belt pulley is installed at one end of one rotating roller; a first motor located on the inner side of the belt is installed on one side of the supporting plate. A first belt wheel is fixed to the output shaft end of the first motor. An adjusting assembly used for adjusting the conveying angle of the belt is arranged on the lower side of the supporting plate. A lifting assembly used for adjusting the conveying height of the belt is arranged on the lower side of the adjusting assembly. A second motor is controlled to drive a first lead screw to rotate, the position of a limiting rod can be flexibly adjusted, a first limiting block and a connecting rod rotate around a hinge point, a fixing block and a second limiting block also rotate around the hinge point, then the conveying angle of a belt is changed, and different height differences and conveying requirements can be met; and the use flexibility of the conveyor is improved.
Owner:SUZHOU INNAVITT PRECISION CO LTD

Pyrite-coated WS2 heterogeneous Fenton composite catalyst as well as preparation method and application thereof

The invention provides a pyrite-coated WS2 heterogeneous Fenton composite catalyst as well as a preparation method and application thereof, and belongs to the technical field of organic dye sewage treatment. The method comprises the following steps: carrying out mechanochemical ball milling on nano WS2 and pretreated pyrite to prepare pyrite coated WS2; wherein the mechanochemical ball milling technology can improve the industrial wastewater treatment efficiency and reduce secondary pollution. By controlling the contrast, pollutant concentration and pH value of the catalyst, the prepared composite catalyst shows excellent catalytic activity and stability. The invention provides an effective strategy for solving the self-repairing and recycling problems of the traditional Fenton catalyst in practical application, is expected to be widely applied to the field of industrial wastewater treatment, and promotes the development of an environment treatment technology.
Owner:GUANGXI UNIV FOR NATITIES +1

Nitrogen and phosphorus co-doped hollow carbon microspheres as well as preparation method and application thereof

The invention discloses nitrogen and phosphorus co-doped hollow carbon microspheres as well as a preparation method and application thereof. The preparation method of the nitrogen and phosphorus co-doped hollow carbon microspheres comprises the following steps: 1) preparing carboxylated polystyrene microspheres; (2) preparing a ZIF-8 coated carboxylated polystyrene microsphere; (3) preparing nitrogen-doped hollow carbon microspheres; 4) preparing phosphoric acid modified nitrogen-doped hollow carbon microspheres; and 5) sintering the phosphoric acid modified nitrogen-doped hollow carbon microspheres. The nitrogen and phosphorus co-doped hollow carbon microspheres can well adapt to sulfur volume expansion, provide adsorption sites of polysulfide and promote rapid conversion of the polysulfide, and the preparation method is simple, low in production cost and suitable for industrial production. The room-temperature sodium-sulfur battery which is assembled after the cathode material is prepared by compounding the cathode material with sublimed sulfur has excellent cycling stability and rate capability, and is suitable for large-scale industrial production and application.
Owner:SOUTH CHINA UNIV OF TECH

Intelligent video analysis method and system based on AI

The invention relates to the technical field of video analysis, and particularly discloses an AI-based intelligent video analysis method and system, and the method comprises the steps: segmenting a to-be-recognized video, and obtaining audio information and an image sequence based on the same time axis; identifying the audio information, performing primary grouping on an image sequence, performing intra-group comparison on each group of images after primary grouping, and performing secondary grouping according to a comparison result to obtain a final image group; the image group is a set of images, and the image group contains a time label generated based on a time axis; and extracting at least one image from each image group, identifying the image, and generating an evaluation text. According to the method, part of the image is extracted from the video file, the image is analyzed by means of an AI-based fixed recognition scheme and a local model-based dynamic recognition scheme, and the video can be quickly converted into the text, so that a user can quickly know the content of the video.
Owner:SHANDONG HENGMAI INFORMATION & TECH

Endogenous safe isomer generation method and system based on large language model

An endogenous safe isomer generation method based on a large language model comprises the steps that 1, in the code generation process of the large language model, error types and repair schemes corresponding to the error types are obtained to form a plurality of question and answer pairs; establishing a layered guide instruction of each question and answer pair; adjusting the large language model based on the hierarchical guidance instruction to generate an error-repaired code; 2, isomer codes with errors in the compiling process are extracted and fed back to the large language model, and the isomer codes in the large language model are adjusted for the first time to generate parameters; generating a compiled isomer code by using the large language model adjusted for the first time; 3, isomer codes with inconsistent logic functions under different fuzzy test input information are extracted and fed back to the large language model adjusted for the first time, and the isomer codes in the large language model are adjusted for the second time to generate parameters; and generating an isomer code by using the large language model adjusted for the second time to serve as a safe isomer code.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO +4

Industrial design aided design method and system

The invention relates to an intelligent industrial design auxiliary system, and aims to realize intelligence and automation of an industrial design process by integrating advanced technical modules such as user interaction, intelligent generation, component decomposition and display, user modification and feedback, learning updating and the like. According to the intelligent industrial design auxiliary system provided by the invention, by integrating the user interaction module, the intelligent generation module, the component decomposition and display module, the user modification and feedback module, the learning updating module and the like, the intelligence and automation of the industrial design process are realized, and the design efficiency and the creative level are remarkably improved. According to the system, the design cost is reduced, the product marketing period is shortened, the practicability and market competitiveness of a design scheme are improved through continuous optimization, and revolutionary change is brought to the field of industrial design.
Owner:CHANGCHUN UNIV OF TECH

Reservoir flood control water level dynamic control and flood recycling method and system

The invention relates to the technical field of flood control dispatching, and discloses a reservoir flood control water level dynamic control and flood recycling method and system, and the method comprises the steps: obtaining a surface rainfall forecast value of a reservoir basin based on real-time rainwater condition data and numerical weather forecast; a hydrodynamics and hydrology coupled drainage basin runoff model is driven, and an in-reservoir flood hydrograph in a predicted period is generated; judging the flood scale and grade based on the hydrograph, and when the flood is medium and small flood, calculating the dynamic flood control storage capacity of a downstream flood control object by adopting an equivalent flood control effect algorithm taking into account the pre-discharge scheduling capability; according to the dynamic flood control storage capacity, a dynamic flood control water level control value is obtained through backstepping of a water level-storage capacity relation curve of the reservoir; and finally, generating and executing a reservoir dispatching instruction based on the control value, and storing the water level of the reservoir to not exceed the dynamic value. The problems that a fixed flood control water level method is low in water resource utilization rate and inflexible in dispatching are solved, and flood resource efficient utilization on the premise of flood control safety is achieved.
Owner:ZHENGZHOU UNIV

Device for preventing sulfur hexafluoride gas from being liquefied

The utility model discloses a device for preventing sulfur hexafluoride gas from being liquefied. The device comprises an outer cylinder, an upper cover is fixed at the top end of the outer cylinder and is connected with the gas receiving port; a bottom cover is fixed at the bottom end of the outer cylinder and is connected with the junction box; a gas storage tank is arranged in the outer cylinder, a heating device is arranged on the outer side of the gas storage tank in a sleeving manner, and a stirring device is arranged in the gas storage tank; a control circuit and a display module are arranged in the outer cylinder; according to the utility model, the silica gel heating plate is arranged around the gas storage tank, so that the problem that the sulfur hexafluoride gas of the sulfur hexafluoride high-voltage electrical equipment is easy to liquefy at low temperature is solved.
Owner:INNER MONGOLIA HAIYI ELECTRIC POWER TECH CO LTD

Vehicle intelligent welcome control method and system

The invention provides a vehicle intelligent welcome control method and system, and the method comprises the steps: responding to different welcome control signals based on the position distance between a passenger and a vehicle, and generating a corresponding welcome starting instruction; obtaining different weather environment information based on the corresponding welcome starting instruction, and starting welcome modes under different weather conditions; and executing corresponding welcome actions based on the welcome modes under different weathers. The problems that in the prior art, only a fixed greeting mode can be used, the function is single, service content cannot be customized in a personalized mode, and reliable greeting service cannot be provided in the face of a complex environment are solved. According to the invention, the environment information is identified, different greeting strategies are executed for different environments, and reliable greeting service is provided.
Owner:SUNGIANT AUTOMOTIVE ELECTRONICS CO LTD

Rotary double-station annular workpiece clamping device

The utility model discloses a rotary type double-station annular workpiece clamping device, which relates to the technical field of clamping devices, and comprises a mounting plate and a movable plate, two groups of clamping mechanisms are arranged at the upper end of the movable plate, a rotating mechanism is arranged at the lower end of the mounting plate, each clamping mechanism comprises a concave seat, five groups of arc-shaped push blocks and a fixed round seat, an air cylinder is fixedly installed in the concave base, a protective shell is fixedly installed at the upper end of the concave base, L-shaped arc supporting plates are fixedly installed at one ends of the five sets of arc-shaped pushing blocks, six sets of vertical holes are formed in the upper end of the fixed round base in a penetrating mode, and a long pushing frame base is fixedly installed at the extending end of the air cylinder. And connecting pieces are rotationally mounted on five protruding parts at the upper end of the long push frame seat. According to the annular workpiece clamping device, the annular workpiece can be fixed, the phenomenon of unstable clamping is prevented, it is guaranteed that the annular workpiece cannot deviate, and then the machining precision and efficiency cannot be affected.
Owner:SUZHOU CARSKE INTELLIGENT TECHNOLOGY CO LTD

Movable building construction waste treatment device

The invention discloses a movable building construction waste treatment device which comprises a frame, rollers are rotatably mounted on the lower surface of the frame, a brake mechanism is rotatably mounted on one side of the frame, a first U-shaped frame and a second U-shaped frame are fixedly mounted on the two sides of the frame respectively, and a dust collection mechanism is fixedly mounted in the first U-shaped frame; the dust collection end of the dust collection mechanism is installed on the upper surface of the crushing bin, and a feeding mechanism is rotationally installed in the second U-shaped frame. Through the design of the dust collection mechanism and the feeding mechanism, the dust collection mechanism pushes or pulls the vehicle frame to a construction waste accumulation position, so that the equipment can quickly reach a waste generation place, the carrying distance of the construction waste can be reduced through the flexible moving mode, the treatment efficiency is improved, and through the folding design of the feeding mechanism, the construction waste can be conveniently and rapidly transported. In the construction waste treatment process at different places, the construction waste treatment device can be quickly converted from a transportation state to a working state through the folding and unfolding functions.
Owner:YANCHENG HANZHAO CONSTRUCTION ENGINEERING CO LTD

Table processing method and apparatus, and computer program product

The embodiment of the invention provides a table processing method and device and a computer program product. The table processing method comprises the steps that in response to a trigger operation on a table conversion function, a first page is displayed, and the first page displays a first control corresponding to a table type and at least one sub-control associated with the first control; in response to a trigger operation on a scanning function, identifying a first object including table content on the first page based on a first sub-control corresponding to the table conversion function; and converting the first object to obtain a first table. According to the method and the device, a user does not need to search for an entrance to execute a corresponding function, table conversion can be quickly performed, switching of different table processing functions can be realized on the first page, the user does not need to return to a main page to re-enter, and the operation process is simplified.
Owner:GUANGZHOU KINGSOFT MOBILE TECH +3

HIV-1 virus load detection performance evaluation method and system

The invention discloses an HIV-1 virus load detection performance evaluation method and system. For each pair of data points (xi, yi) in the data set D, the slope a and the intercept b of a straight line between all possible two points are calculated; the estimated value of the slope a is the median of all the slopes. The estimation of the intercept b is obtained by calculating the residual error of each data point and finding the median of the residual errors; the invention relates to the technical field of virus load detection. According to the invention, through multi-dimensional analysis including correlation, consistency, classification accuracy, chi-square test, Bland-Altman consistency analysis, Kappa coefficient and the like, a comprehensive performance evaluation framework is provided for the virus load detection kit. The comprehensive evaluation is helpful for ensuring that the kit can provide reliable results in various application scenarios. Through strict experimental design and data analysis, possible problems of the kit can be found and corrected in time, so that the detection accuracy and reliability of the kit are improved.
Owner:贵州中医药大学第二附属医院

Folding stool

ActiveCN224612211UMeet individual needs for comfortRealize stepless adjustment
This utility model discloses a folding stool, including a seat frame, a backrest, and legs. The backrest is rotatably mounted to the seat frame via a first pivot, and the legs are hinged to the seat frame via a first adjustment assembly. The first adjustment assembly has a limit hole, and the seat frame has a positioning hole corresponding to the limit hole. A rotating pin is inserted into the limit hole and the positioning hole. A second adjustment assembly is provided between the backrest and the seat frame. By providing a second adjustment assembly consisting of a pull plate, a toothed plate, a gear, and a spring, the user can easily adjust the backrest angle by holding the pull plate with one hand to separate the toothed plate from the gear. After releasing the pull plate, the spring automatically resets, causing the toothed plate to re-engage with the gear for quick locking. This structure is not only easy to operate but also achieves stepless adjustment, meeting the user's personalized comfort needs and overcoming the shortcomings of traditional pin-type adjustment which has a fixed angle, is laborious to operate, and is prone to wear.
Owner:HANGZHOU TWIN WORLD INTELLIGENT TECHNOLOGY CO LTD

Electric multilayer lifting platform

The invention relates to the technical field of lifting platforms, and discloses an electric multi-layer lifting platform which comprises a base and a plurality of single-layer platforms, two symmetrically-distributed limiting rods are installed on each of the two sides of the base, a top plate is installed at the top ends of the limiting rods, and a transmission box is installed on the top plate; the two sides of the single-layer platform are each provided with two limiting grooves in sliding connection with the corresponding limiting rod. The two ends of the single-layer platform are clamped and fixed through the clamping component, the stability of the single-layer platform during lifting is improved, and when the clamping component completes clamping, the locking component can be automatically separated from the locking groove under the action of the control component and the magnetic component, so that the lifting component conveniently lifts the single-layer platform, and the working efficiency is improved. And after lifting of the single-layer platform is completed, when clamping of the clamping component on the single-layer platform is relieved, the locking component can automatically complete limiting and locking of the single-layer platform, and therefore the single-layer platform needing to be lifted can be rapidly switched, and the overall use efficiency of the lifting platform is improved.
Owner:SHANDONG CHANGSONG CONSTR MASCH CO LTD

A shale oil system three-dimensional fracturing complex fracture network design method and system

ActiveCN119333090BStrong universalityReduce parameter requirementsGeometric CADMaterial analysis by optical means
This invention provides a method and system for designing complex fracture networks in three-dimensional fracturing of shale oil systems. The method includes: first, identifying the original three-dimensional seepage paths of reservoir samples, including natural fractures and pores, using core observation and microscopic identification. Then, using CT and NMR techniques, the number and morphology of fractures are quantitatively characterized and delineated, forming digital characterization units of the pore-fracture network structure. Next, appropriate fracturing processes are selected based on different original fracture matching relationships, including controlled near-to-far expansion, broadband expansion, and pressurized expansion processes. A CO2-based pre-fracturing acid initiation process is added. Finally, based on optimized and reasonable three-dimensional fracturing parameters for the well group, a refined three-dimensional geological model, a geostress model, and a numerical simulation model of the actual well group are established. This three-dimensional fracturing network design method has advantages such as high accuracy, comprehensive parameters, convenience, and ease of operation.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1