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58results about How to "Strong expandability" patented technology

Low-density high-filled spc flooring and method for manufacturing the same

ActiveCN115926236BImprove melt strengthStrong expandabilityPolymer scienceFoaming agent
This invention discloses a method for preparing low-density, high-filler SPC flooring. The method is characterized by a raw material formulation comprising the following components in the indicated weight proportions: 100 parts graft-modified PVC resin, 300-350 parts filler, 9-12 parts heat stabilizer, 3-5 parts melt processing modifier, 3-5 parts reinforcing and toughening modifier, 1-2 parts external lubricant, 1-2 parts internal lubricant, 2-5 parts chemical foaming agent, and 2-5 parts foaming aid. The graft-modified PVC resin is prepared by replacing the chlorine atoms in PVC with p-aminothiophenol, followed by an amidation reaction between a diacid or polyacid and an amino group. Its advantages are: 1) It improves the melt strength and expandability of the PVC resin, ensuring foaming performance under high filler content. Compared with ordinary SPC flooring, the flooring product has lower density and lighter weight, higher hardness, and lower overall formulation cost compared to ordinary low-density SPC flooring. 2) The process is simple, and the product has high controllability.
Owner:YIBIN TIANYI NEW MATERIALS TECH CO LTD

An environment recognition and tracing method and system based on multi-modal collaboration and a medium

PendingCN122506118ASolve the technical problem of lack of global spatial positioningincrease diversity
The present application relates to a gas tracing method, in particular to a kind of environmental identification and tracing method, system and medium based on multi-modal cooperation, method includes: collection contains gas plume visual image and contains gas response signal olfactory signal;Visual image is preprocessed and visual feature is extracted, and visual depth feature vector is obtained;Olfactory signal is preprocessed and olfactory feature is extracted, and olfactory feature vector is obtained;Cross-modal fusion obtains fusion feature vector;Physical constraint loss function is constructed, and physical consistency correction is carried out, and modified fusion feature vector is obtained;Output gas concentration space-time distribution result.Compared with prior art, the present application solves the problem that prior art cannot realize high-precision online monitoring and tracing of multi-component gas.The scheme improves the identification accuracy of gas component, the multi-component distinguishing ability and real-time response performance in complex environment through the integration of visual monitoring and olfactory monitoring, combined with multi-modal fusion algorithm and physical consistency correction.
Owner:SHANGHAI JIAOTONG UNIV

A bundle type device fault response method and system based on graph network optimization

The application belongs to the technical field of equipment fault processing, and relates to a cluster type equipment fault response method and system based on graph network optimization, comprising the following steps: collecting a processing state of a cluster type equipment; if a certain equipment fails, determining a dynamic characteristic f d and a static characteristic f s of the equipment according to the processing state; corresponding the equipment to a node in a graph model according to the dynamic characteristic f d and the static characteristic f s of the equipment, and marking the node; inputting the graph model with the marked node into a pre-trained strategy model to generate a fault response strategy; and controlling the cluster type equipment based on the fault response strategy to achieve a response to the fault. The application can respond to the fault in the scheduling process of the cluster type equipment, can obtain a fault response strategy with high quality, and is more suitable for different operation modes of the cluster type equipment.
Owner:TSINGHUA UNIVERSITY +1

Liquid cooling system for data center

According to the liquid cooling system for the data center provided by the utility model, Freon is adopted as a heat exchange medium of the liquid cooling system, and a mechanical compression refrigeration direct expansion type air conditioning system (fluorine pump system) is combined with the liquid cooling system, so that the unification of an air cooling part and a liquid cooling part is realized, the pipeline is simple, the manufacturing cost is low, and the overall operation efficiency and the maintenance convenience are higher. The system has good expansibility and can be flexibly adjusted according to the outdoor temperature or the tail end load condition, and the refrigerating capacity of the cold source is correspondingly increased or reduced. The compressor is not directly connected with the evaporator and the CDU plate heat exchanger, but indirectly exchanges heat through the plate heat exchanger, so that the flow of a mechanical compression refrigeration loop is reduced, lubricating oil of the compressor is not easy to accumulate in the condenser I and the loop, the problem of unsmooth oil return of the compressor is avoided, and the service life of the compressor is prolonged. And the design support system is connected in parallel with the expansion mechanical refrigeration module, and the cold source can be flexibly adjusted according to the tail end load.
Owner:NANJING CANATAL DATA CENT ENVIRONMENTAL TECH CO LTD

Immunochromatography detection result reading method and device based on solid quantum enhancement

The invention provides an immunochromatography detection result reading method and device based on solid quantum enhancement, and relates to the technical field of immunochromatography detection. The immunochromatography detection result reading method comprises the following steps: emitting exciting light to a standard substance to excite the standard substance to generate a fluorescence signal for detection; microwaves are output to a standard substance, so that the standard substance generates spin resonance, and the intensity change of a fluorescence signal is caused; collecting the fluorescence signal after intensity change to obtain an optical detection magnetic resonance ODMR reference spectral line; determining a corresponding microwave calibration frequency according to the optical detection magnetic resonance ODMR reference spectral line; exciting light and microwaves which are calibrated according to the microwave calibration frequency and are subjected to amplitude or frequency modulation are emitted to a tested sample; and respectively detecting the fluorescence intensity variation of the quality control line and the detection line to obtain an immunochromatography detection result of the detected sample. The microwave frequency is calibrated by using the standard substance, the interference of background fluorescence is effectively shielded, and the detection sensitivity and accuracy are improved.
Owner:BEIJING ACAD OF QUANTUM INFORMATION SCI

Intelligent logistics transfer device

ActiveCN224146842UAbility to operate in both directionsRealize automatic transfer operationsStorage devicesLogistics managementControl engineering
The utility model relates to the technical field of intelligent logistics and cooperative scheduling control, and particularly provides an intelligent logistics transfer device. The device comprises a transferring device, a swing arm structure, a grabbing mechanism and an intelligent cooperative scheduling module. The system integrally supports task state feedback, path obstacle avoidance and cluster scheduling execution, is suitable for flexible storage, intelligent carrying and multi-target material circulation scenes, and has the remarkable technical advantages of intelligent control, path optimization, task collaboration and the like.
Owner:LANGFANG LIKE LOGISTICS CO LTD

A positioning tool for positioning a column center distance assembly

The utility model relates to glass steel product assembly technical field, concretely relates to a kind of positioning tool for positioning column center distance assembly, the positioning column at least two, the parallel arrangement between the positioning column, the positioning tool includes connecting sleeve head and connecting rod, the connecting sleeve head one end is matched with positioning column, and the other end is provided with connecting rod;The clearance fit between the connecting sleeve head and positioning column, the positioning column includes column stem, protruding portion and column head from below to above in order, the width of protruding portion is greater than the width of column head, and the width of column head is greater than the width of column stem;The bottom of connecting sleeve head is provided with positioning slot, and the positioning slot is matched with column head, and at least two connecting sleeve heads are provided on the connecting rod.The utility model is convenient and fast, and positioning accuracy is high, reduces random error, improves assembly efficiency and assembly qualification rate, meets the requirement of product batch consistency, with remarkable engineering application value.
Owner:HE NAN JIANG HE JI XIE YOU XIAN ZE REN GONG SI

A method for preparing a single-layer molybdenum disulfide by dual sulfur source chemical vapor deposition

PendingCN122279524AUniform sulfur atmosphere environmentReasonable distribution of sulfur chemical potentialSemiconductor materialsPhysical chemistry
This application relates to the field of two-dimensional semiconductor material preparation technology, specifically to a method for preparing monolayer molybdenum disulfide by dual-sulfur source chemical vapor deposition, comprising the following steps: Step 1, providing a chemical vapor deposition reaction chamber having an upstream region, a growth region, and a downstream region; Step 2, arranging a molybdenum-containing precursor in the growth region, and arranging a substrate above or opposite to the molybdenum-containing precursor; Step 3, arranging a first sulfur-containing precursor in the upstream region and a second sulfur-containing precursor in the downstream region; Step 4, introducing a carrier gas into the reaction chamber and heating it to cause the first sulfur-containing precursor, the second sulfur-containing precursor, and the molybdenum-containing precursor to volatilize and undergo a chemical vapor deposition reaction on the substrate surface to form a monolayer molybdenum disulfide. This invention employs a dual-sulfur source strategy, achieving large-size, uniform, and low-defect preparation of monolayer MoS2, facilitating widespread application.
Owner:YUNNAN NORMAL UNIV

Atmospheric trace nitrous acid and formaldehyde profile detection device carried by small aircraft and detection method

The invention relates to the field of atmospheric environment monitoring and high-altitude sampling, and discloses an atmospheric trace nitrous acid and formaldehyde profile detection device carried by a small aircraft and a detection method. The absorption liquid is fed into the double-channel miniature spiral trapping trap through a peristaltic pump to be mixed and contacted with the sample gas to form a sample solution; a liquid storage bottle is arranged on the automatic sample disc, and the top of the first liquid inlet needle is connected with a liquid outlet of the dual-channel miniature spiral trapping trap; a color developing solution in the color developing solution storage bottle is injected into the liquid storage bottle through a second liquid inlet needle, and the constant-temperature reaction kettle controls the color developing reaction temperature to form a sample solution to be detected; a to-be-detected sample solution is pumped into the absorption cell through the liquid pumping needle, and the liquid pumping needle is driven by the liquid pumping arm to move up and down; the absorption cell is connected with a detector, and the detector is used for detecting the component concentration of the sample solution to be detected; the automatic sampler and the rapid reaction detector comprise the same automatic sample disc to realize rapid sample transfer.
Owner:PEKING UNIV

A firmware version switching system, method and computer device

This invention discloses a firmware version switching system, method, and computer device, belonging to the field of electronic technology. The system includes a baseboard management controller, a basic input / output system (PIS), and a VR chip. The output terminal of the baseboard management controller is connected to the first input terminal of the PIS, and the output terminal of the PIS is connected to the input terminal of the VR chip. The technical solution of this invention can automatically and seamlessly complete the BIOS firmware version switching without affecting customer business operations, greatly meeting customer needs, improving operational efficiency, and is applicable to various types of servers.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Filtering devices suitable for mobile phone shielding

This invention discloses a filtering device suitable for mobile phone shielding, comprising a connector, a tube, a first conductive element, a second conductive element, and a tubular ceramic capacitor. The connector includes a metal housing and a conductive core disposed within it. The tube is also made of metal, with its front end connected to the rear end of the connector housing. The first conductive element passes through the tube axially from within it, without contacting the tube. The front end of the first conductive element is connected to the conductive core of the connector. The second conductive element is disposed outside the tube, with its front end connected to the connector housing. The tubular ceramic capacitors are connected in series with the first conductive element, with at least one of them sealing the rear end of the tube. The casing of the tubular ceramic capacitor includes a conductive portion connected to the tube. Compared with existing technologies, this filtering device not only performs better in high-frequency filtering and electromagnetic shielding, but its structural design is also simpler and more practical.
Owner:GUANGZHOU GUUB TECH

Integrated physical information graph neural network acceleration core and potential field regulation method thereof

PendingCN122655882ASolve the problem of energy extraction instabilityHigh potential energy capture efficiencyTopology mappingGraph neural networks
The application discloses an empty chip integrated with a physical information graph neural network acceleration core and a potential field regulation method thereof, and belongs to the technical field of quantum semiconductor integrated circuits and space field energy regulation. The empty chip comprises an electrode array layer, a quantum bit layer, a potential source topology mapping module, a GNN hardware acceleration core and a controller. The GNN hardware acceleration core is completely integrated in the chip and comprises a graph convolution operation unit, a physical constraint storage unit and a voltage mapping unit, and is used for hardwareizing GNN operation logic. The potential field regulation method comprises the following steps: the potential source topology mapping module constructs a potential source space topology graph; the GNN hardware acceleration core calls rules in the physical constraint storage unit, iteratively solves a global optimal energy distribution through hardware-level graph convolution operation, and converts the optimal energy value into a driving voltage loaded to the electrode array layer through the voltage mapping unit, so as to construct a dynamic adjustable nonlinear potential well. The application solidifies the neural network algorithm into a hardware IP core, avoids the risk of rejection of the intellectual activity rules of the Patent Law, realizes real-time self-adaptive closed-loop regulation of the space potential field, solves the energy instability problem caused by the space potential fluctuation, and is suitable for space passive energy acquisition and new propulsion scenarios.
Owner:赵泽利

A Smart Contract Similarity Detection Method Integrating Global and Local Features

ActiveCN115617395BSolve the noise problemDetect reuse issues
This invention discloses a smart contract similarity detection method that integrates global and local features. It extracts bytecode function blocks using a contract function block extraction tool, encodes these function blocks into feature vectors using the SimHash algorithm, and calculates the similarity matrix of the function blocks using the Hamming distance algorithm, thus obtaining local similarity values. Next, it extracts the contract's program dependency graph by adding control flow and data flow analysis, and then encodes the program dependency graph into feature vectors using a graph embedding model encoder based on the Graph2vec algorithm. These feature vectors are used as input to a similarity calculation function to obtain the global similarity value of the contract. Finally, the similarity result of the contract is calculated by fusing global and local features. This invention's method of integrating global and local features considers multi-dimensional contract code features, achieving more accurate detection results and possessing good versatility and practical value.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Building management and control system and intelligent building

ActiveCN224203595UAll-round collectionRefined collectionProgramme controlComputer controlControl systemRemote control
The utility model relates to the technical field of Internet of Things, and discloses a building management and control system and an intelligent building, and the system comprises a control module, a plurality of control terminals, a sensor module, and a building management subsystem. The sensor module is used for gathering sensor data of the building management subsystem and transmitting the sensor data to the control module; the control terminal is used for monitoring the operation state of the building management subsystem and sending an equipment control instruction for controlling the building management subsystem to the control module; and the control module is used for receiving the sensor data of the building management subsystem acquired by the sensor module, and controlling the operation state of the building management subsystem based on the sensor data and the equipment control command sent by the control terminal. According to the utility model, the on-site or mobile terminal remote regulation and management function of the equipment in the building on the mobile terminal is realized, and the problem that the on-site or mobile terminal remote regulation and management function on the mobile terminal does not exist in the prior art is solved.
Owner:WUHAN OPTICS VALLEY ELECTRIC

Method for in-situ separation of cochlea related cells based on patch clamp system

The invention discloses a method for separating cochlea related cells in situ based on a patch clamp system. The method comprises the following steps: contacting an electrode with a target single cell under a microscope, and carrying out in-situ grabbing on the target single cell through negative pressure adsorption; the target single cell and surrounding cells are kept in a connection state before in-situ grabbing; before the electrode approaches the target single cell, positive pressure is continuously applied, and when the electrode is in contact with the surface of the target single cell, the positive pressure is instantly stopped and switched to negative pressure. According to the method provided by the invention, high-quality cochlea related cells can be obtained in situ for deep sequencing analysis, and the method can be used for basic research and accurate diagnosis and treatment of clinical hearing impairment, and has a good application prospect.
Owner:SHANGHAI TECH UNIV

Control assembly with communication module provided with multiple controllers and control system

ActiveCN224205110UQuickly adjust control quantitieseasy to operateData switching detailsControl systemControl engineering
The utility model discloses a control assembly and a control system with a communication module provided with a plurality of controllers, the control assembly comprises a communication module and a plurality of controllers, and the controller is provided with at least one output interface used for being connected with an external electric appliance. The communication module is in communication connection with the at least one controller in a manner that a connector is mutually inserted; when the plurality of controllers are sequentially arranged on the same side of the communication module, two adjacent controllers are also connected through a connector in a mutual insertion manner, and all the controllers are in communication connection with the communication module through conduction of at least one connector; according to the scheme, a user can quickly adjust the control number of the electric appliances according to actual field requirements, the system has the advantages of being easy to operate and high in expansibility, the cost is lower, and the installation space is saved.
Owner:GUANGDONG AOPUTE TECH CO LTD

A new energy mobile air compressor

This utility model discloses a new energy mobile air compressor, comprising a separate air compressor unit and a mobile battery unit. The air compressor unit mainly includes a mobile chassis, a screw air compressor, a drive motor, a motor controller, and various cooling systems. The air compressor unit is connected to the mobile battery unit via a pluggable integrated composite power supply cable. This cable integrates both high-voltage power supply cables and low-voltage control cables, enabling the transmission of high-voltage DC power and information communication and control between the devices. The mobile battery unit can be a dedicated mobile energy storage box or a new energy vehicle with external discharge capabilities. This design separates the power source from the main unit, improving the flexibility and convenience of equipment use.
Owner:XINYAN INTELLIGENT STORAGE (CHONGQING) TECHNOLOGY CO LTD

A fringe projection three-dimensional imaging system based on micro-led array

PendingCN122360344ASimplified volumeReduce size and weight3d shapes3d image
This invention discloses a stripe projection 3D imaging system based on a Micro-LED array. Its 3D information acquisition module consists of an integrated packaged Micro-LED driver board, a Micro-LED array, a micro-projection module, and a CCD camera. The 3D reconstruction module utilizes a computer. The micro-projection module is equipped with a plano-convex lens and a mechanical focusing damping structure, and is separately arranged in the front and rear optical paths of the Micro-LED array. The system's workflow is as follows: the driver board reads pre-stored stripe pattern data and timing-controls the Micro-LED array to output coded structured light stripes; the focusing structure adjusts the object distance in the optical path, focusing and scaling the stripes before projecting them onto the surface of the object being measured; the CCD camera simultaneously acquires a sequence of deformed images modulated by the object's shape and transmits it to the computer; the computer combines a multi-step phase-shifting algorithm and Gray code rules to complete phase calculation and unfolding, and, combined with a preset phase-height mapping relationship, reconstructs the 3D shape and point cloud data of the object being measured. This invention enables low-cost, miniaturized, and high-performance 3D shape measurement.
Owner:NANCHANG UNIV

A chassis folding type foldable wheelchair frame

ActiveCN224598349UCollapsiblelower the altitude
The chassis folding type foldable wheelchair frame provided by the utility model can form three four-link mechanisms, and can drive two chassis frames to stagger and shorten the length of the chassis when folding.
Owner:SUZHOU FLYER MEDICAL TECHNOLOGY CO LTD

A plastic particle integrated deodorization circulating homogenization system

PendingCN122584536ARegular routeeven distribution of feed
This invention discloses an integrated deodorization and circulation homogenization system for plastic granules. The system features a two-stage partition within the post-drying chamber, dividing the chamber into three independent cavities: an outer partition, a middle partition, and an inner partition. Two sets of coils enable differentiated airflow to each zone, creating a tiered temperature field. The middle partition contains multiple spiral tracks, which, along with the V-shaped guide channel and vertical discharge port at the bottom of the outer partition, direct the material flow. The first coil provides lateral airflow, propelling the granules spirally upwards along the tracks, enhancing VOC and odor removal in the high-temperature range near the softening point. The second coil provides tangential airflow along the conical second partition, creating a swirling flow that allows the granules to undergo tiered cooling and deep deodorization in the low-temperature range. This solution solves the problems of traditional equipment, such as single temperature control, uneven material heating, insufficient air-material contact, and easy agglomeration. It ensures orderly material flow, uniform deodorization, and high temperature control accuracy, guaranteeing product quality and production efficiency, and is suitable for large-scale continuous production of various types of plastic granules.
Owner:WUXI LINGOOD MACHINERY TECH

An ion detector with spatial resolution

PendingCN122567819AAchieve real-time resolutionSimple structure
This invention discloses an ion detector with spatial resolution. The device is fabricated using printed circuit board (PCB) technology, with one side featuring detection electrodes of specific shapes and spacing. These electrodes are independent of each other and are used to adsorb charged particles. The distribution of ions arriving at different locations on the detector within the same time frame is distinguished based on the number of charged particles reaching the electrodes. This invention, combined with a spatially resolved ion mobility analyzer, enables real-time and effective ion differentiation and detection. Its simple structure, low cost, and strong scalability significantly reduce the time-dimension scanning rate requirements during ion detection, offering unique advantages for both commercialization and scientific research.
Owner:HUNAN UNIV

Spacecraft confrontation intention recognition method with interpretability

PendingCN121880973AStrong timing modeling capabilitiesImprove recognition accuracyNeural learning methodsEngineeringIntent recognition
The invention relates to a spacecraft confrontation intention recognition method with interpretability, which adopts a mode of combining deep learning and data mining to recognize the confrontation intention of a spacecraft and realize the tracing of the confrontation intention, and specifically comprises the following steps of: firstly, collecting time sequence state data of the spacecraft through a space-based or foundation remote sensing system; performing data processing on the original data, and performing association rule mining on historical confrontation data of the spacecraft through an association rule mining algorithm to obtain an association rule of state, action, moment-intention; meanwhile, a depth model is constructed and trained for intention recognition, and final spacecraft confrontation intention probability distribution is output. The result of the association rule mining algorithm is used for screening in adversarial intention recognition, so that the intention recognition precision is improved; and traceability of the recognition result of the confrontation intention is realized, the source of the confrontation intention is analyzed, an auxiliary decision is provided for a decision maker, and interpretability is enhanced.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Adjustable mounting system for electric motor

ActiveCN224481579UImprove assembly firmnessGood shock protectionAnnular arrayPhysics
The application discloses a motor with adjustable installation mode, and relates to the technical field of motor installation structure. The motor comprises a motor body and a protection frame sleeved outside the motor body, and the protection frame mainly comprises an installation base, a sliding limiting base, an axial protection sleeve, a limiting clamping jaw, a fixed clamping piece and an outer extended extension clamping groove. The motor horizontal position is adjusted through the sliding limiting base, and the limiting clamping jaw is locked in the circumferential direction in cooperation with the fixed clamping piece. The threaded column of the fixed clamping piece is screwed into the positioning holes of the motor body which are arranged in an annular array, thereby supporting multi-angle installation. The outer extended extension clamping groove is internally provided with a spring type compression block and a detachable shock absorbing pad plate, is adapted to an external interface and buffers vibration. The heat dissipation sleeves on both sides of the installation base and the pad plate heat dissipation grooves are cooperated to improve the heat dissipation efficiency. The utility model solves the problems of the traditional motor installation position being not adjustable and poor anti-vibration performance, and realizes three-dimensional rapid adjustment, anti-loosening shock absorption and high efficient heat dissipation.
Owner:SHANDONG DONGPU PERMANENT MAGNETIC MOTOR CO LTD

Glue uniformizing roller assembly with limiting scraping structure

The utility model discloses a glue uniformizing roller assembly with a limiting scraping structure, which comprises a working outer frame, an anti-slip mat is arranged on the surface of the bottom of the working outer frame, and the bottom of the inner wall of the working outer frame is rotatably connected with a glue uniformizing roller; one side of the limiting scraping assembly is fixedly connected with one side of the surface of the working outer frame, and the limiting scraping assembly is used for directly scraping excessive glue or slurry on the surface; and one side of the transfer roller assembly is fixedly connected with the surface of the working outer frame. According to the glue uniformizing roller assembly with the limiting scraping structure, redundant glue or slurry on the surface of a glue uniformizing roller can be directly scraped when the glue uniformizing roller works through the arrangement of the limiting scraping assembly and the arrangement of a scraper, the position of the scraper is effectively limited, the scraper can be directly changed by rotating a screw rod, adjustment by workers is facilitated, and the working efficiency is improved. The cleanness and the stability of the equipment are kept.
Owner:CHANGZHOU WUJIN HAILI ROLL MFG CO LTD

Modular equalization circuit and method of controlling the same

ActiveCN117543768BReduce voltage stresslow costElectrical batteryTransformer
The application discloses a modular equalization circuit and a control method thereof. The modular equalization circuit comprises a power supply, a converter, a selection switch, a transformer, a rectifier circuit, a filter and a battery equalization circuit which are connected in sequence. The number of modules is N, the number of energy storage units in each module is M, and the number of the rectifier circuit, the transformer, the filter and the battery equalization circuit is N. The number of the selection switch is N+1. Two output ends of the converter are marked as A and B respectively, i represents the i-th module, when i is odd, the one end of the switch S i is connected with A, the other end of the switch S i is connected with the same name end of the primary side of the transformer T i . When i is even, the one end of the switch S i+1 is connected with B, the other end of the switch S i+1 is connected with the different name end of the primary side of the transformer T i . When i is even, the one end of the switch S i is connected with B, the other end of the switch S i+1 is connected with A. The application significantly shortens the equalization path, improves the equalization efficiency and has strong expansibility.
Owner:HEBEI UNIV OF TECH

A coal seam lithium-rich seam detection method based on well logging curve and statistical analysis

The application discloses a coal seam lithium-rich layer detection method based on well logging curves and statistical analysis, and belongs to the technical field of mineral resource exploration. The method comprises the following steps: selecting a series of representative coal seam positions for systematic sampling, and preparing the samples into piston samples and powder samples; determining the kaolinite and lithium content of the powder samples, and distinguishing lithium-rich and ordinary coal samples; systematically determining various geophysical response parameters of the piston samples, such as density, resistivity and wave velocity, and screening out sensitive discrimination indexes for lithium enrichment; setting a window size, calculating the moving statistical value curves of the density, resistivity, wave velocity and other well logging curves sensitive to the lithium-rich layer, calculating principal components, and using the selected principal components and a support micro machine to train a prediction model, so as to predict the lithium-rich layer in the coal seam. The application combines geophysical logging, statistical analysis, principal component analysis and a support vector machine, and provides a fast, economical and non-destructive means for lithium resource exploration in coal.
Owner:CHINA UNIV OF MINING & TECH

Joint regulation and control method for flexibility resources in Saggob area based on wavelet decomposition

The invention relates to the technical field of power system regulation and control, and discloses a Sagomean area flexibility resource joint regulation and control method based on wavelet decomposition, which comprises the following steps: acquiring power system net load time sequence data, and performing discrete wavelet transform and decomposition on the power system net load time sequence data to obtain an approximation coefficient and a detail coefficient under each scale; reconstructing based on the approximation coefficient and the detail coefficient to obtain a high-frequency component, an intermediate-frequency component and a low-frequency component; constructing a power confidence interval by each frequency band component; constructing an energy storage system model, a demand response resource model and a thermal power generating unit model; the method comprises the following steps of: constructing a joint optimization scheduling model considering input uncertainty, performing deterministic conversion on chance constraints, and solving the joint optimization scheduling model by adopting a mixed integer linear programming solver, and has the advantages of being capable of effectively adapting to uncertainty of new energy output and load fluctuation, and being high in practicability. And the flexibility, the stability and the economical efficiency of a power system in the Sagomean region are improved.
Owner:BAIYIN POWER SUPPLY COMPANY STATE GRID GANSU ELECTRIC POWER

A fabric composite stiffness matrix calculation method, device, equipment and medium

The present application relates to the technical field of composite materials, and discloses a fabric composite material stiffness matrix calculation method, device, equipment and medium. The method comprises the following steps: obtaining a standard sample of a fabric composite material; determining the in-plane weaving angle alpha and the out-of-plane fluctuation angle beta of the fabric based on the standard sample; obtaining the corresponding basic mechanical parameters of the fabric composite material and the fabric layup parameters of a target component; and constructing a cross-scale numerical calculation model based on the in-plane weaving angle alpha, the out-of-plane fluctuation angle beta, the basic mechanical parameters and the fabric layup parameters, and calculating the complete stiffness matrix of the fabric composite material. The present application is suitable for various single glass fiber or carbon fiber reinforced fabric composite materials, can adjust the structure characteristic measurement points and model parameters according to different fabric types, and has good universality and expandability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS