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99results about How to "Improve friendliness" patented technology

Power equipment intelligent diagnosis and maintenance system and method based on knowledge graph

The invention belongs to but not limited to the technical field of fault diagnosis and maintenance of power equipment, and discloses an intelligent diagnosis and maintenance system and method for power equipment based on a knowledge graph. A data acquisition and preprocessing module acquires real-time operation data and historical data of the power equipment; the knowledge graph construction module associates various kinds of information of the power equipment to construct a knowledge graph; the intelligent diagnosis module performs association analysis on power equipment faults based on a knowledge graph and a machine learning algorithm, identifies fault modes and potential faults, and predicts possible faults of the equipment; the maintenance suggestion module automatically generates a detailed maintenance scheme according to the diagnosis result; the operation and maintenance visualization module provides visual fault diagnosis results and maintenance suggestions, supports multi-level data display, and helps operation and maintenance personnel to clearly understand the equipment state. The operation safety of the power equipment is improved, the operation and maintenance cost is remarkably reduced, and the overall efficiency of equipment management in an intelligent power grid environment is improved.
Owner:夏斯韵

Multi-agent cooperation system

The invention provides a multi-agent cooperation system, which comprises a multi-agent cooperation engine module, a task decomposition and distribution module and a tool calling normal form module, and is characterized in that the task decomposition and distribution module is used for decomposing tasks and distributing decomposed sub-tasks to agents; the multi-agent cooperation engine module is used for managing cooperation and communication between agents; and the tool calling module enables the intelligent agent to dynamically call different tools. According to the multi-agent collaboration system, the collaboration efficiency among the agents, the flexibility of task decomposition, the adaptivity of tool calling and the intelligent level of user interaction are remarkably improved, and remarkable technical advantages and effects are shown in complex task processing and dynamic environment processing.
Owner:BAIXIONG ZHISHU (BEIJING) TECHNOLOGY CO LTD

Intelligent photovoltaic power generation control device

The invention relates to an intelligent photovoltaic power generation control device which integrates a photovoltaic power generation panel, a series connection base, a supporting assembly, a water collection groove, a rainwater collection assembly, a cleaning assembly and a control assembly. A series base and a series interface are arranged below the photovoltaic panel, so that modular installation is facilitated; the supporting assembly comprises two supporting rods, the light following function is achieved, and the photovoltaic panel is automatically adjusted to face the sun. A water collecting groove above the photovoltaic panel and a rainwater collecting assembly at the bottom of the photovoltaic panel can collect and store rainwater; the cleaning assembly comprises a spraying unit and a cleaning brush and is used for automatically cleaning the surface of the photovoltaic panel; the control assembly monitors operation of the system and adjusts the posture of the photovoltaic panel and work of the cleaning assembly. Redundant electricity generated by the photovoltaic power generation panel in sunny days is stored for the system to use, and the light following function is not started in cloudy days, so that electric energy is saved; through the design, the efficiency and sustainability of photovoltaic power generation are improved; the energy conversion efficiency can be improved, the reliability and automation level of the system are enhanced, and the utilization and environmental friendliness of rainwater are improved.
Owner:HUNAN ARCHITECTURAL DESIGN INST

Method and device for calculating pipeline leakage flow based on pressure change

The invention provides a method and device for calculating pipeline leakage flow based on pressure change, and belongs to the technical field of gas leakage detection. The method for calculating the pipeline leakage flow based on the pressure change comprises the following steps that S1, a pressure simulation model is established, a pipeline is simulated according to the pressure simulation model, and pressure change data, changing along with time, in the pipeline is obtained; s2, the leakage opening area value and the total gas volume value corresponding to the gas meter and the pipeline are obtained; and S3, establishing a leakage rate calculation model, and inputting the gas total volume value, the leakage port area value and the pressure change data into the leakage rate calculation model to calculate and obtain a leakage flow rate value. The pressure simulation model simulates the pipeline to obtain the pressure change data, the gas leakage flow can be accurately calculated by comprehensively considering the pressure change, the leakage opening area and the gas volume, the method can be widely applied to household and industrial gas pipelines, gas waste is reduced, and environmental pollution is reduced.
Owner:ZHEJIANG WEIXING INTELLIGENT METER STOCK

Composition containing biological source insecticide and application thereof

The invention belongs to the field of pesticides, and relates to a composition containing a biological source pesticide. The composition contains an active component A and an active component B, the component A is selected from a compound I-72, and the component B is selected from biological source insecticides and acaricides; the weight part ratio of the component A to the component B is (1: 99)-(99: 1); wherein the structural formula of the compound I-72 is shown in the specification, and the composition disclosed by the invention has an obvious synergistic effect and can be used for preventing and treating various pests and pest mites. # imgabs0 #
Owner:SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD +2

Pollution source online monitoring and analyzing system and method

The invention relates to the technical field of environment monitoring, in particular to a pollution source online monitoring and analysis system and method, and the system comprises a map building unit which is used for carrying out the three-dimensional map modeling of a target monitoring area; the man-machine interaction unit is used for issuing a monitoring control command; the acquisition monitoring unit is used for calculating data sampling density and acquiring environment data; the threshold value early warning unit is used for comparing data to judge whether the pollution source is a suspected pollution source or not; the pollution confirmation unit is used for setting an identification framework for the received environmental data of the suspected pollution source so as to judge whether the suspected pollution source is a real pollution source or not; and the diffusion analysis unit is used for matching the environmental data of the real pollution source with the pollutant diffusion model to obtain the diffusion range of the real pollution source. According to the invention, through environment data acquisition of the unmanned ground vehicle, multiple environment data of a water area and soil can be obtained in real time in a target monitoring area, so that pollution conditions can be found and responded in time, and potential hazards caused by environment pollution are reduced.
Owner:WENZHOU HUANKE ENVIRONMENTAL PROTECTION TECH CO LTD

Self-adaptive calibration method and system for brain-computer interface earphone

The invention relates to the technical field of brain-computer interfaces, in particular to a self-adaptive calibration method and system for a brain-computer interface earphone, and the method comprises the following steps: obtaining electroencephalogram data; based on the electroencephalogram data, constructing an initial model through federal learning; selecting a user specific sample by using an active learning strategy; performing dynamic parameter optimization on the initial model; based on the result of the dynamic parameter optimization, adaptive personalized calibration is executed; performing anomaly detection and correction on the result of the self-adaptive personalized calibration; performance evaluation is carried out on the result obtained after anomaly detection and correction, the evaluation result is fed back to the previous steps, and the steps form a closed-loop optimization process; through the combination of federal learning and active learning, the calibration time is shortened from 45 minutes of a traditional method to about 5 minutes, and the efficiency is improved by nearly 9 times; the accuracy rate of the method reaches 95.8% and is improved by 8.6% compared with that of a traditional method.
Owner:COSONIC INTELLIGENT TECH CO LTD

Hydrogenation catalyst and preparation method thereof, and hydrogenation method of organic hydrogen storage material

The present invention relates to the technical field of catalysts, and discloses a hydrogenation catalyst and a preparation method thereof, and a hydrogenation method of an organic hydrogen storage material, the method comprises: (1) mixing an active metal component precursor, a dispersion component precursor, an auxiliary agent metal precursor, an Al salt and a solvent to obtain a salt solution; wherein the active metal component is selected from Ni and / or Co, the dispersion component is selected from Zn and / or Mg, and the auxiliary metal is selected from at least one of rare earth metal, VIIB group metal, IVB group metal and VIB group metal; (2) contacting the porous carbon with acid under a stirring condition to obtain acid-treated porous carbon; (3) mixing the acid-treated porous carbon, a salt solution, a surfactant and alkali, and carrying out precipitation reaction; and (4) roasting the product obtained in the step (3) in an inert atmosphere. The hydrogenation catalyst prepared by the method shows extremely high activity in the hydrogenation process of a hydrogen storage medium.
Owner:BEIJING HYWIN HYDROGEN ENERGY TECHNOLOGY CO LTD

Cross-micro-grid power transaction method based on cross-chain of block chain

The invention provides a cross-micro-grid power transaction method based on cross-chain of a block chain, and comprises a cross-micro-grid power transaction method based on a cross-chain technology of the block chain. Comprising the steps of transaction demand and quotation submission, cross-chain information synchronization and summarization, expected transaction set generation, transaction matching calculation, transaction result verification, smart contract transaction execution, reputation index adjustment and unmatched transaction processing. The micro-grids share power supply or demand and quotation information through the cross-chain technology, and the relay chain technology broadcasts information to ensure information synchronization. The micro-grids form an expected transaction set, and transaction matching is calculated and synchronized through a cross-chain technology. And after verification succeeds, the smart contract automatically executes a transaction and records a result, the reputation index is updated, and unmatched transactions can be transacted with the public power grid. According to the invention, the transaction efficiency and reliability can be improved, the reputation index is dynamically adjusted, a multi-dimensional evaluation system is adopted, and the fairness and environmental friendliness of the transaction are enhanced.
Owner:HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS

Method, system, equipment and medium for realizing online viewing of original style of Excel file

The invention provides a method, a system, equipment and a medium for realizing online viewing of an original style of an Excel file, and belongs to the technical field of online file processing, the method comprises the following steps: a front-end Web page receives the Excel file uploaded by a user, stores the Excel file in a rear-end server and records stored file information; the Excel file is read, an xlsx.js library and an excel.js library are used for analysis, and analysis results are integrated; missing cell filling and style information conversion are carried out on the analyzed Excel file, cells with merging attributes in the Excel file are marked, and a format capable of being recognized by a data grid editor is obtained; and rendering a table consistent with the style of the original Excel file on a front-end Web page based on a format which can be identified by the data grid editor. The problem that a traditional online Excel viewing tool cannot completely reserve original file style information is solved, and the user experience is improved.
Owner:DIGITAL INTELLIGENCE CLOUD ALLIANCE (SHANDONG) DIGITAL TECHNOLOGY CO LTD

Method for guiding construction by means of distance measuring device

The invention relates to a method for performing construction guidance by means of a distance measuring device. The method comprises the following steps: acquiring template data associated with a to-be-constructed site; acquiring field data of a to-be-constructed field; determining construction data based on the template data and the field data; and marking the to-be-constructed site according to the construction data by means of the distance measuring device so as to guide the construction of the to-be-constructed site. By means of the method for conducting construction guidance by means of the distance measuring device, the site to be constructed can be similarly achieved by means of the desirable construction sample site, and the desirable sample site is re-engraved. Specifically, the construction data is determined based on the template data and the field data by means of the method for performing construction guidance by means of the distance measuring device provided by the invention, so that the to-be-constructed site can be marked according to the construction data by means of the distance measuring device so as to guide the construction of the to-be-constructed site.
Owner:NORTHWEST TECHNOLOGIES (KUNSHAN) CO LTD

Visualization method, device and equipment for drivable area of automatic parking and storage medium

The invention discloses a driving area visualization method, device and equipment for automatic parking and a storage medium, and relates to the technical field of parking, and the driving area visualization method for automatic parking comprises the following steps: obtaining vehicle-mounted camera data, radar point cloud data, vehicle size and safety distance, a target obstacle recognition model based on an encoder-decoder and a self-attention module is used for analyzing camera data, and the initial position, size and type of an obstacle are determined. Then, the positions are adjusted through radar data to obtain accurate real-time obstacle positions, and a drivable area is constructed in combination with the vehicle size and the safe distance. And finally, the system sends camera data, radar data and drivable area information to a vehicle controller, the vehicle controller reconstructs an automatic parking scene by using a scene restoration model, and a result is transmitted to a vehicle display to present an automatic parking view. According to the invention, the automatic parking scene view can be displayed, the driving area can be displayed, and the collision risk is reduced.
Owner:VOYAH AUTOMOBILE TECH CO LTD

Carboxymethyl chitin composite material for articular cavity and preparation method thereof

The invention belongs to the technical field of biomedical materials, and particularly relates to a carboxymethyl chitin composite material for an articular cavity and a preparation method of the carboxymethyl chitin composite material. The carboxymethyl chitin composite material for the articular cavity is prepared by selecting carboxymethyl chitin, hyaluronic acid, sodium alginate and chitosan which are good in biocompatibility as raw materials and performing functional modification treatment respectively, and through the synergistic effect of all the components, the elasticity modulus of the composite material is effectively improved, the swelling rate is reduced, and the joint cavity is more stable. And meanwhile, the composite material also has proper viscosity and degradation performance, and can meet application requirements.
Owner:YANTAI WANLI MEDICAL EQUIP CO LTD

Pollution prevention and treatment equipment for soil

The invention relates to the technical field of soil pollution prevention and treatment, in particular to soil pollution prevention and treatment equipment which comprises a main machine frame, an auxiliary frame is installed at the bottom of the main machine frame, wheel shafts are rotationally installed at the bottoms of the two side ends of the main machine frame, and a hub is installed at one end of each wheel shaft. A cutter shaft is rotatably installed at the position, close to the wheel shaft, of the side end face of the auxiliary frame, a plurality of bent cutters are evenly installed on the outer curved surface of the cutter shaft at equal intervals, and a material box is installed in the middle of the top end of the auxiliary frame. The compatibility of equipment advancing work, soil crushing work and treating agent feeding work is improved, the effectiveness of the soil crushing work is enhanced, the soil crushing work is more balanced, the soil crushing blind area is avoided, synchronous injection and spraying of the treating agent are achieved, the permeation combination efficiency of the treating agent and soil is enhanced, and the treatment effect is improved. The effective utilization rate of the treating agent is improved.
Owner:HUANGHUAI UNIV

Maintenance equipment for concrete pouring

The utility model belongs to the technical field of concrete curing, and particularly relates to a curing device for concrete pouring, walking wheels and universal wheels enable the curing device not to be limited by site areas when watering and curing concrete, a cross rod and a spray head can enlarge the single-time concrete watering area of the curing device, the watering efficiency and uniformity are improved, and the maintenance efficiency is improved. Meanwhile, the valve assembly and the rotating cross rod can adjust the water flow width during operation of the maintenance equipment, the flexibility is improved, the pressurizing assembly can increase the pressure in the water storage tank so that the flow speed of the water spraying head can be increased, and therefore the working efficiency is further improved; the valve assembly is simple in structure and easy to operate, the use convenience is improved, the inflator and the walking wheels are linked through the connecting rod, the interior of the water conveying pipe can be automatically pressurized when a worker pushes the cart, extra power does not need to be provided, energy is saved, and meanwhile the use cost is reduced.
Owner:GUANGDONG NO 11 CONSTR CO LTD

An optimized deployment system and method based on a MAD-GAN algorithm

ActiveCN118333111BIncrease training speedGuaranteed alternating operation mode
The application provides an optimization deployment system and method based on a MAD-GAN algorithm, and belongs to the technical field of artificial intelligence.The system comprises a bus control unit, a discriminator and a generator; demand generation samples are divided into k modes, and the system is set to a default state; the generator monitors the bus state in real time, generates a random noise vector to obtain sample data; the sample data is written into a half-duplex generator data bus; the discriminator monitors the bus state in real time, reads the data in the half-duplex generator data bus, and reads the comparator parameters and the softmax parameters to obtain an evaluation value and a perception value of the generated sample; after gradient operation on the evaluation value, the evaluation value is cached, and the perception value of the generated sample is written into a half-duplex gradient data bus; after updating the discriminator parameters, the next cycle period is entered.The application can significantly accelerate the training speed of the MAD-GAN algorithm, has a higher requirement for storage capacity, and improves the model friendliness.
Owner:SHANDONG INSPUR SCI RES INST CO LTD

A series-parallel hybrid cotton picker and a control method thereof

This invention provides a hybrid-type cotton harvester and its control method, including a hybrid-type hybrid system. The hybrid-type hybrid system includes an engine, a gearbox, a coupling device, a differential, a generator, a battery, a main controller, a travel motor controller, a picking motor controller, a fan motor controller, a baling motor controller, a cotton collecting motor controller, and a conveying motor controller. The engine transmits power to the coupling device via the gearbox, the coupling device couples the power of the engine and the travel motor, and then transmits the power to the wheels via the differential. This invention achieves mechanical decoupling between the various working systems of the cotton harvester through distributed electric drive, solving the problems of numerous components, long paths, and inability to adjust operating parameters in real time in traditional cotton harvester transmission systems. It results in low fuel consumption, low pollution, and high energy efficiency, balancing the machine's range and energy saving, and enabling switching between different modes, thus improving the overall fuel economy and dynamic performance of the vehicle.
Owner:JIANGSU UNIV

A method, device, and equipment for handling takeover of an autonomous vehicle.

ActiveCN117508225Btake over securityimprove accuracy
This application provides a takeover handling method, device, and equipment for autonomous vehicles, relating to the field of autonomous driving technology. The method includes: acquiring data to be filtered based on the driver's physiological and eye-tracking data within the current time window; filtering and calculating the data to be filtered according to multiple preset data indicators and data types to obtain data to be predicted; obtaining the driver's takeover recovery time based on the data to be predicted using a trained time prediction model; and upon confirmation that a warning time has arrived, acquiring a warning level matching a preset warning execution rule and executing a corresponding takeover request warning strategy to achieve a takeover warning reminder for the vehicle. This application's method obtains more accurate and representative data to be predicted by filtering and calculating physiological and eye-tracking data, obtains a more accurate takeover recovery time using a trained time prediction model, and issues a warning reminder, thereby improving driving safety.
Owner:SINO TRUK JINAN POWER CO LTD

Old-age suitable carport for old residential community

This utility model provides an age-friendly bicycle shed suitable for older residential communities, comprising a floor, a fence, and a roof. The floor has an entrance / exit ramp and a parking loop connecting the ramp. Parking areas are located on both sides of the parking loop, and entrance / exit points are formed at the locations corresponding to the ramps on both sides. The parking areas inside the parking loop enclose a waiting area in the center of the floor, which includes a pedestrian walkway. The fence has double-leaf gates corresponding to the ramps, with three states: a first state of closed ramps, a second state of open ramps and closed entrance / exit points, and a third state of open ramps and entrance / exit points. The roof is fixedly connected to the top of the fence and covers the floor. This age-friendly bicycle shed for older residential communities provides convenient parking, allows for the closure of the double-leaf gates for theft prevention, and provides a waiting area for elderly people to rest and wait, thus improving the age-friendly functionality of the bicycle shed.
Owner:NORTHERN ENG DESIGN & RES INST CO LTD

Monitoring device of sewage reaction tank

The utility model relates to the technical field of sewage monitoring, in particular to a monitoring device for a sewage reaction tank, which comprises a reaction tank body, a reaction tank arranged at the top of the reaction tank body, a top tank arranged at the top of the reaction tank body and positioned on one side of the reaction tank, a detection device fixedly connected inside the top tank, and a sleeve fixedly connected on one side of the inner wall of the top tank, a piston is slidably connected into the sleeve, a connecting rod is rotatably connected to the top of the piston, and a cam shaft is rotatably connected into the top groove. The device has the beneficial effects that any treatment deviation can be found in time through real-time monitoring, so that measures can be quickly taken for correction, the treated water quality is ensured to meet the specified discharge standard or reutilization requirement, and sewage treatment and discharge are ensured to meet related environmental protection regulations and standards through continuous monitoring; and legal responsibility and economic loss caused by illegal discharge are avoided, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.
Owner:NANJING SUCHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Preparation method of nicardipine hydrochloride

The invention relates to a preparation method of nicardipine hydrochloride, and belongs to the technical field of medicines. Different from the previous reported reaction under an alkaline condition in the synthesis of nicardipine, the method disclosed by the invention has the advantages that the reaction is carried out under an acidic condition, the reaction is milder, the rate is higher, and the nicardipine solid with higher purity can be obtained through post-treatment. The nicardipine hydrochloride with high purity can be obtained by reacting nicardipine with hydrochloric acid to form salt and crystallizing, and the method is suitable for industrial production.
Owner:GUANGZHOU TONGHUI PHARM CO LTD

An integrated safety recycling pen cap for insulin pen and method of use

PendingCN122251740ASatisfy the needs of safe useEliminate the risk of needle stick injuriesInfusion needlesNeedle punctureMechanical engineering
The application discloses an integrated safety recycling pen cap for an insulin pen and a use method, and aims to solve the problems of high risk of needle stick injury, poor universality and complicated operation in the process of disassembling and recycling the existing insulin needle. The application comprises a pen cap body, a guide piece and a force relieving piece coaxially arranged in the pen cap body, a pen top component with a top block slidingly connected to the cap top of the pen cap body, a telescopic piece with a reset function arranged between the pen top component and the guide piece, and a reinforcing piece penetrating through the circumference of the pen cap body. The guide piece is an outer equal-diameter cylindrical hole with an inner truncated conical hole structure, and the force relieving piece is an outer truncated conical rotary surface with an inner equal-diameter cylindrical hole structure with an axial anti-skid groove. The application can realize contactless disassembly and recycling of the insulin needle throughout the whole process, is suitable for different specifications of needles, has high structural integration and is easy to operate, and can completely avoid the risk of needle stick injury.
Owner:QINHUANGDAO MATERNAL & CHILD HEALTH HOSPITAL (QINHUANGDAO MATERNAL & CHILD HEALTH CENT)

A die-casting mold stripping and part-taking adaptive control system and method

This invention belongs to the field of die casting molding technology, specifically an adaptive control system and method for demolding and part removal in die casting molds. The system includes a die casting machine, a sensing module, a control center, an execution module, and an emergency stop button mounted on the surface of the die casting machine. The sensing module includes vision sensors, pressure sensors, temperature sensors, laser sensors, vibration sensors, and ultrasonic thickness sensors. The control center uses an industrial control computer running a real-time operating system, including the following functions: A3. Adaptive Algorithm: including PID control and a machine learning model. This adaptive control system and method for demolding and part removal in die casting molds, through an adaptive PID algorithm and a machine learning model, can dynamically adjust the spraying pressure, time, and amount of release agent in the demolding device based on the mold temperature, residue on the mold, and mold wear monitored in real time by the sensing module. This ensures optimal demolding results while saving resources and avoiding mold damage.
Owner:CHIZHOU ZHONGSHI AUTO PARTS CO LTD

An artificial intelligence-based fetal heart rate and uterine contraction dual monitoring system

The present application relates to the technical field of signal processing and analysis, and discloses a fetal heart rate and uterine contraction double monitoring system based on artificial intelligence, which comprises a signal decoupling module for constructing a signal decomposition network of multi-channel physiological signals; a signal feature extraction module for extracting a time domain feature set and a frequency domain feature set of a fetal heart rate signal sequence and extracting a time-varying nonlinear feature set of a uterine contraction signal sequence; a coupling relationship analysis module for constructing a heart rate-contraction joint space-time feature map of the time-varying nonlinear feature set, the time domain feature set and the frequency domain feature set, and determining a heart rate-contraction coupling relationship of a fetal heart rate state and a contraction intensity; an abnormal joint index analysis module for calculating a fetal hypoxia probability and a contraction frequency probability of a pregnant woman to determine an abnormal joint index of the pregnant woman; and a monitoring report generation module for generating a monitoring report of the pregnant woman. The present application can improve the accuracy and comprehensiveness of fetal heart rate and uterine contraction double monitoring.
Owner:THE THIRD AFFILIATED HOSPITAL OF ZHENGZHOU UNIVERSITY +1

Connection device, switching device having a connection device, and method for automatically connecting and automatically

The invention relates to a connection device (1) of a switching device, to a switching device having at least one connection device (1), to a method for automatically connecting a connection device (1), and to a method for automatically disconnecting a connection device (1). The invention relates to a connection device for a switchgear having at least one control line, comprising at least two parts (5, 6), one part (5) being connected to a fixed part (20) of a switchgear cabinet (19) of the switchgear and the second part (6) being connected to a movable part (21) of the switchgear cabinet (19) of the switchgear, the movable part (21) of the switchgear cabinet (19) being slidable, the second part (6) of the connecting device (1) can be connected to the first part (5) by sliding the movable part (21) of the switchgear cabinet (19), and wherein a connection to at least one control line of the switchgear cabinet can be automatically established by establishing a connection to the first part (5) by the second part (6) of the connecting device (1).
Owner:SIEMENS MOBILITY GMBH

Mobile monitoring robot capable of switching expressions

The utility model provides a mobile monitoring robot capable of switching expressions. The mobile monitoring robot comprises a shell; the abutting plate and the shell are integrally formed, the abutting plate is located in the shell, and an expression display area and a circuit board installation area are separated out of the abutting plate; the expression display screen is located in the expression display area and abuts against the abutting plate; the expression display screen is arranged in the circuit board mounting area, the expression integrated chip is electrically connected with the expression display screen and located in the circuit board mounting area, the expression integrated chip comprises multiple expression packages and is electrically connected with the expression display screen, the expression display screen is used for displaying any expression package, and the emotion expression ability is improved through the structure.
Owner:XINLINK TIMESTECHNOLOGY CO LTD

Metal phosphate catalyst, preparation method thereof and application of metal phosphate catalyst in Friedel-Crafts reaction

The invention discloses a metal phosphate catalyst as well as a preparation method and application thereof in Friedel-Crafts reaction. The catalyst is composed of transition metal ions and phosphate ions, the molar ratio of phosphorus to the transition metal elements is 1: (0.5-7), the total acid amount of the catalyst is in positive correlation with the catalytic activity, and the higher the total acid amount is, the better the reaction effect is. The preparation method comprises the following steps: dissolving a transition metal soluble salt in deionized water, adding a phosphate aqueous solution, stirring to generate a precipitate, dropwise adding nitric acid to dissolve the precipitate, adding urea to obtain a mixed solution, and carrying out hydrothermal reaction, washing, suction filtration and drying to obtain a finished product. During application, the catalyst, phenol and alcohol are put into an intermittent reaction kettle, nitrogen is introduced to maintain stable pressure, heating and stirring reaction are performed, and an alkylphenol product is directly obtained. The catalyst is excellent in catalytic performance, mild in reaction condition and convenient to operate, the alcohol conversion rate and the selectivity of target alkylphenol can be effectively increased, meanwhile, the high conversion rate of acyl chloride is achieved in the acylation process, the process economy is improved, and an efficient and feasible technical scheme is provided for the Friedel-Crafts reaction.
Owner:NANJING NORMAL UNIVERSITY

Electrolyte based on acidic ionic liquid and preparation method thereof

The invention discloses an electrolyte based on acidic ionic liquid and a preparation method of the electrolyte, particularly relates to the technical field of electrolytes, and relates to the electrolyte based on the acidic ionic liquid and the preparation method of the electrolyte. The electrolyte based on the acidic ionic liquid is prepared from 1-vinyl-3-(3-sulfopropyl) imidazole, concentrated sulfuric acid, dibenzoyl peroxide, titanium dioxide and zirconium oxide; by introducing metal oxide subjected to differentiated surface treatment, a biphase continuous interpenetrating network is constructed in a polymer matrix by virtue of electrostatic interaction and interface design, a rapid interface ion transmission channel and a firm mechanical supporting framework are synchronously provided, and the chemical corrosion resistance and physical deformation resistance of the material are remarkably enhanced; the electrolyte stability is improved.
Owner:SHANDONG JIULI IND & TRADE GRP CO LTD

A method and device for linking a supplier file with procurement behavior

This application provides a method and apparatus for linking supplier profiles with procurement activities. The method includes acquiring multi-source heterogeneous data related to a target supplier from multiple data sources. Upon detecting a change in any data point within this heterogeneous data set, the method triggers a real-time recalculation of the target supplier's health score to obtain a real-time health score. This real-time health score is then used to determine and execute the control strategy for the target supplier within the procurement transaction system, thereby achieving dynamic control over procurement activities involving the target supplier. This method enables real-time supplier status awareness, constructs a hierarchical and categorized differentiated control system, effectively solves the problems of limited control methods and delayed risk response, and significantly reduces compliance and financial risks.
Owner:BEIJING HESI HUIZHI INFORMATION TECHNOLOGY CO LTD