5582results about How to "Easy transfer" patented technology

The invention relates to the technical field of sensor detection, and discloses a detection method and device based on a multi-mode gas sensor, and the method comprises the following steps: carrying out blending processing on a metal oxide semiconductor and a conductive material to obtain a bimodal nano composite material, and creating a multi-mode gas detection module, the preprocessed multi-mode signal data is acquired and obtained; acquiring and analyzing data of the temperature sensor and the humidity sensor to obtain environmental factor compensation parameters; performing adaptive calibration processing on the preprocessed multi-modal signal data according to the environmental factor compensation parameters to obtain calibrated multi-modal signal data; constructing a multi-input neural network model based on the calibrated multi-modal signal data, and training to obtain a gas recognition model; multi-mode signals collected and calibrated in real time are analyzed and judged based on the gas recognition model, gas type and concentration information is obtained, and high-precision and high-reliability gas detection is achieved.

The invention belongs to the technical field of battery electrolytes, and particularly relates to a gel polymer electrolyte as well as a preparation method and application thereof. The gel polymer electrolyte is prepared through in-situ polymerization, and the electrolyte is composed of a monomer, a cross-linking agent, an initiator, an organic solvent and a lithium salt. The monomer is selected from fluorine-containing monomers such as trifluoroethyl acrylate, 2, 2, 3, 3-tetrafluoropropyl methacrylate and the like, and the cross-linking agent is selected from NH-containing cross-linking agents such as N, N '-methylene bisacrylamide, hexamethylene bisacrylamide and the like, so that a polymer side chain fluorine-containing functional group is formed in situ and interacts with lithium ions, and lithium ion transmission is promoted; and the NH functional group on the main chain limits the migration of anions, so that the ion migration number is increased. Therefore, the copolymerized fluorine-containing monomer and nitrogen-containing cross-linking agent gel polymer electrolyte enables the battery to show good specific discharge capacity and cycling stability under high current density.

The invention discloses a distribution network line fault early warning and accurate positioning system, and relates to the technical field of distribution network line monitoring. In order to solve the problems that in actual operation, due to the complexity of a power grid, the situation of false alarm or missing alarm may exist, and in actual application, accurate fault positioning is crucial for quickly recovering power supply and reducing power failure time, and the accuracy of fault position positioning is low. Distribution network line data and traveling wave signals are accurately acquired in real time through the data acquisition unit, abnormal changes in a distribution network can be found in time through the fault early warning unit, the fault type can be rapidly identified, the fault occurrence position can be accurately calculated through the fault positioning unit, the rod fixing data of a fault point can be determined, and the fault positioning accuracy can be improved. According to the invention, the time of troubleshooting by operation and maintenance personnel is reduced, the fault processing efficiency is improved, the operation and maintenance personnel can remotely monitor the operation state of the power distribution network, the convenience and efficiency of operation and maintenance are improved, intelligent monitoring and management of the power distribution network are realized, and the operation and maintenance cost is reduced.

The invention discloses a multi-modal data fusion student mental health early warning method and system. The method relates to the technical field of property detection, and comprises the following steps: collecting student psychological health data, analyzing the student psychological health data, and comprehensively analyzing, optimizing and adjusting the student psychological health early warning method. The student psychological health data is acquired and processed, the student psychological health data is analyzed, the student psychological health data image quality evaluation index and the student psychological health data fusion network volatility evaluation index are obtained, and the student psychological health early warning method is comprehensively analyzed, optimized and adjusted. The accuracy of the student psychological health early warning data quality is improved, and the problem that the accuracy of the student psychological health early warning data quality is insufficient in the prior art is solved.

The invention discloses a life cycle visual management method based on data, and relates to the technical field of data management. The method comprises the following steps: 1, data acquisition and identification; 2, classifying and dividing data life cycle stages; 3, data state monitoring and updating; 4, recording and associating data operation; step 5, constructing a data life cycle visual framework; step 6, data life cycle decision analysis optimization; 7, performing data archiving and deletion management; according to the invention, fine management of the whole life cycle of the data is realized, and the systematic method not only improves the efficiency of data processing, but also enhances the transparency of data management, so that managers can monitor the data state in real time, quickly respond to the data problem, optimize the data circulation process and improve the overall operation efficiency. Through application of a data visualization technology, complex data information is displayed in a visual and understandable form, and managers are helped to better understand data dynamics.

The invention relates to the technical field of video compression, in particular to a video monitoring data compression and transmission method and system, and the method comprises the following steps: analyzing the texture features of a video frame, calculating the gray gradient of each pixel, obtaining the texture change rate, detecting edge information, calculating the distribution density of edge pixels, and extracting a color histogram. And calculating the dispersion degree of color distribution. In the invention, a dynamic coding parameter adjustment mechanism based on content is introduced to analyze the video frame, a compression strategy is adjusted according to the content complexity, and the coding process can accurately meet the requirements of different video contents through comprehensive analysis on the texture change rate, the edge density and the color dispersion degree; according to the scheme, the coding parameters can be dynamically adjusted by monitoring the coded video quality in real time and comparing the coded video quality with the preset quality threshold value, and the storage and transmission of data are further optimized while the video quality is ensured.

The invention discloses a software query information management method and system, and belongs to the technical field of software information security, and the method specifically comprises the following steps: after a query request of a user is received, creating a dynamic topology network architecture according to semantic features of query contents; creating a virtual query container corresponding to the dynamic topological network in the isolated memory space, wherein the virtual query container generates a dynamic encryption channel bound with the current topological structure; dynamically embedding user permission labels into topological network nodes through an attribute-based encryption algorithm, and establishing a mapping relation between permission characteristics and network paths; when distributed query is executed in the virtual query container, the topological node connection weight is dynamically adjusted according to the real-time network load; before a query result is fed back to a user, data elements are recombined based on a reverse entropy value of an original topology network architecture; and when an abnormal access feature is detected, triggering a topological network structure dynamic failure mechanism.

The invention provides a low-cost preparation method of high-performance titanium-doped iron phosphate, and relates to the technical field of batteries. The low-cost preparation method comprises the following steps: S1, respectively preparing a phosphoric acid solution, a hydrogen peroxide solution, a phosphorus salt solution and a ferrite solution; s2, adding titanium sulfate into the ferrite solution to obtain an iron-titanium mixed solution; s3, directly adding ammonia water and a hydrogen peroxide solution into the phosphorus salt solution to obtain a phosphorus-oxygen mixed solution; s4, the iron-titanium mixed solution is heated, the phosphorus-oxygen mixed solution is put into the iron-titanium mixed solution, and slurry A is obtained; s5, obtaining a filter cake A; s6, adding pure water and a phosphoric acid solution, and heating to obtain slurry B; s7, obtaining anhydrous iron phosphate; the synthesized iron phosphate is compact and compact in morphology, internal pore channels of primary particles are still rich, the compaction density of the lithium iron phosphate material obtained through grinding and sintering reaches 2.613 g / cc, the 0.1 C discharge capacity can still reach 156.35 mAh / g, and the 1C discharge capacity reaches 131.47 mAh / g.

The invention relates to a rolling bearing intelligent fault diagnosis method based on digital twinning and partial domain self-adaption, and the method comprises the following steps: building a bearing high-fidelity digital twinning model based on a geometric model, a physical model, a behavior model and a rule model according to the specific model of a target bearing; based on the constructed digital twinborn model, vibration simulation responses of the bearing under different preset faults are obtained; under the driving of an attention mechanism, in combination with a residual convolutional network of an improved CBAM module, domain discrimination features are extracted from the time-frequency image converted from the vibration simulation signal; based on a weight mechanism of a two-stage domain discriminator, adaptively measuring contribution of each source sample, and giving a lower weight to an outlier sample; a confrontation transfer strategy is introduced to reduce the distribution difference between different domains, and effective migration of fault diagnosis knowledge from a virtual space to a physical space is realized. According to the method, the problems of fault sample insufficiency and data label missing are effectively solved through a digital twin technology, and the problem of low fault diagnosis precision caused by poor generalization ability of a digital twin model and inconsistency of data distribution and data labels is solved through partial domain self-adaption.

The invention provides lithium sulfide as well as a preparation method and application thereof. The preparation method of the lithium sulfide comprises the following steps: providing a mixed solution containing a lithium-containing compound and liquid sulfur which are uniformly mixed, and enabling the mixed solution to be in contact with a reducing gas so as to carry out a lithium sulfide synthesis reaction, after the synthesis reaction of the lithium sulfide is finished, at least removing part of sulfur in the obtained reaction mixture to obtain a crude finished product; and calcining the crude finished product to convert lithium polysulfide in the crude finished product into lithium sulfide to obtain a lithium sulfide product. According to the preparation method provided by the invention, the high-purity lithium sulfide is prepared by a one-pot method, the liquid sulfur is used as a reaction raw material and a reaction solvent, and the whole reaction process does not need to use an organic solvent; according to the method, the lithium salt conversion rate can reach 99% or above, and the purity of the obtained lithium sulfide can reach 99.99% or above; compared with the prior art, the reaction temperature is lower, and low energy consumption and high conversion rate are both considered.

The invention belongs to the technical field of magnesium battery electrolytes, and discloses a magnesium battery electrolyte containing an insoluble additive and an application of the magnesium battery electrolyte, the insoluble indium additive is added into the magnesium electrolyte, such as In2O3 nano-particles, In2 (SO4) 3 nano-particles and nano In powder, and the insoluble indium additive is added into the magnesium electrolyte. The non-functionalized sites on the nano-particle cores interact with anions in the magnesium electrolyte to generate a synergistic effect, so that the anions in the electrolyte are fixed, the migration number of Mg < 2 + > and the ion utilization rate are increased, and transmission of magnesium ions is accelerated. The magnesium battery suspension electrolyte is simple in preparation process, low in viscosity and good in stability, the internal resistance of the battery is reduced, the performance of the battery is improved, and the cycle life of the battery is prolonged.

The invention relates to the technical field of roller machining, and provides a roller forming device and method.The roller forming device comprises a base which serves as a basic mounting part and is used for providing a basic mounting face and providing space for treatment of metal chippings; the fixing frame is fixedly connected to the top end of the base and used for providing a machining platform for forming treatment of the roller; the compression mechanism is arranged in the base and used for compressing and quantitatively transferring the concentrated metal chippings; the blowing mechanism is arranged in the middle of the top end of the base and used for assisting in collection of metal scraps; and the fixing mechanism is arranged in the fixing frame and used for supporting and fixing the roller. Through the arrangement of the fixing mechanism, the swing amplitude of the roller can be limited, the situation that the roller cannot be effectively fixed or collides with other parts due to swing is prevented, meanwhile, the position of the roller can be actively adjusted when the roller deviates to one side, the working process is simplified, and the placing and fixing efficiency is improved.

The invention discloses an automatic three-layer mulberry leaf picking device from top to bottom. The automatic three-layer mulberry leaf picking device comprises a transverse moving mechanism, a collecting mechanism, a picking mechanism and a clamping mechanism. The collecting mechanism, the picking mechanism and the clamping mechanism are each provided with a first lifting platform, a second lifting platform and a third lifting platform, the two sides of each lifting platform are each provided with a gear and rack mechanism, and the three lifting platforms are completely the same in structure and all connected with a lifting guide rail to achieve lifting. A collecting frame is mounted on a left lower rod piece and a right lower rod piece of the collecting mechanism, so that the mulberry leaves can be collected; when the three rod pieces of the picking mechanism are closed, the single-side steel needle plate and the double-side steel needle plate are matched with each other to form a plurality of cylindrical picking channels; a spring is arranged on a clamping assembly of the clamping mechanism, so that the clamping mechanism can clamp mulberry twigs of different shapes and sizes; the mulberry leaf picking equipment can realize picking and collection of full mulberry leaves of a single mulberry, and has a certain protection effect on mulberry branches.

The invention relates to the field of lithium ion batteries, in particular to a fluorine-containing soluble polyimide adhesive special for a lithium battery and a preparation method and application of the fluorine-containing soluble polyimide adhesive. The fluorine-containing polyimide is prepared by reacting dianhydride and diamine, the dianhydride comprises 4, 4 '-hexafluoroisopropyl phthalic anhydride (6FDA), the diamine comprises 4, 4'-diaminodiphenylamine (NDA), and the structural formula of the fluorine-containing polyimide (6FDA-NDA) is # imgabs0 #. The electrode material prepared from the adhesive material obtained by the invention has the characteristics of low impedance and high adhesion, the assembled lithium battery shows higher magnification, and the adhesive material shows excellent magnification performance and adhesion performance when being applied to the lithium ion battery, especially a silicon-containing negative electrode lithium ion battery, and has a good industrial prospect.

The invention discloses a radar and video information fusion coding method for vehicle over-limit early warning. The method comprises the following steps: acquiring three-dimensional point cloud data through a radar module; measuring three-dimensional sizes of length, width and height of the target vehicle in real time; a video information acquisition module is used for acquiring vehicle image data, and the video data identifies license plate numbers and vehicle appearance features through an improved YOLO deep learning algorithm to assist in judging whether a vehicle exceeds a limit or not; the vehicle three-dimensional size measured by the radar is compared with the standard size in the database through the data processing module, whether the vehicle exceeds the limit or not is judged through a threshold value method, radar data and video data are effectively fused through an algorithm, and the fused data are compressed. The radar and video information fusion technology is utilized, an efficient coding scheme is combined, the high-precision and high-efficiency vehicle over-limit early warning function can be achieved, and the method is suitable for complex road environments and variable traffic scenes.

The invention discloses a chromium group metal doped platinum alloy catalyst as well as a preparation method and application thereof, and relates to a platinum alloy catalyst as well as a preparation method and application thereof. The technical problem that an existing alloy catalyst formed by Pt and transition metal is poor in catalytic activity and durability is solved. According to the catalyst, PtM alloy nano-particles doped with a chromium group element X are uniformly supported on a carbon carrier; in the PtM alloy doped with the chromium group element X, X exists in the form of a simple substance, and the mass percentage content of X is 5%-10%; the X-PtM / C is marked as X-PtM / C, and X is Cr, Mo or W; m is Fe, Co or Ni. The preparation method comprises the following steps: carrying out secondary reduction and high-temperature heat treatment by taking Pt / C as a precursor to obtain the catalyst. The mass activities of Cr-PtNi / C, Mo-PtNi / C and Cr-PtCo / C are respectively 0.419 A / mgPt, 0.254 A / mgPt and 0.314 A / mgPt, and are 5.0 to 8.1 times of that of Pt / C. And after the Cr-PtNi / C is aged for 30000 circles, the potential is not attenuated. The invention can be used in fuel cell field.

The invention discloses a method and equipment for improving data nonstop efficiency based on a large model, and a medium, belongs to the technical field of large models and data processing, and aims to solve the technical problem of how to reduce time delay of data transmission and processing in a large data processing process, ensure integrity and consistency of data, and improve data nonstop efficiency. According to the technical scheme, the method comprises the steps that multi-source data collection and processing are conducted, specifically, real-time data streams are integrated and synchronized in batches, data are efficiently collected from a database, an API, a file and Internet of Things equipment through a data source adapter, then preprocessing and optimization preprocessing are conducted on the data, and an original data set is obtained; feature engineering: performing feature extraction and feature conversion on the original data set to obtain a pre-training data set; training and optimizing a large model; model deployment and integration: the trained model is exported as a SavedModel format of deployable TensorFlow or a TorchScript format of PyTorch, and real-time data pushing is realized through an API (Application Program Interface) according to a data direct requirement; and a real-time analysis engine.

The invention discloses a ZnFeP-particle gradient abrasion-resistant chemical composite coating and a preparation method of the ZnFeP-particle gradient abrasion-resistant chemical composite coating. The ZnFeP-particle gradient abrasion-resistant chemical composite coating is divided into a passivation layer, a low-iron ZnFeP-particle chemical composite coating and a high-iron ZnFeP-particle chemical composite coating from outside to inside, and a gradient coating with the corrosion potential from low to high is formed; the content of iron in the low-iron ZnFeP-particle chemical composite coating ranges from 0.03 wt% to 1.0 wt%, the thickness of the low-iron ZnFeP-particle chemical composite coating ranges from 8 micrometers to 18 micrometers, and the hardness of the low-iron ZnFeP-particle chemical composite coating ranges from 150 HV to 300 HV. The content of iron in the high-iron ZnFeP-particle chemical composite coating ranges from 5 wt% to 30 wt%, the thickness ranges from 8 micrometers to 18 micrometers, and the hardness ranges from 500 HV to 650 HV. By means of the ZnFeP-particle gradient abrasion-resistant chemical composite coating, a metal component can be resistant to abrasion and corrosion, and therefore the service capacity of the metal component such as electric power fittings in the abrasion working condition is obviously improved.

The invention discloses a preparation method of a controllable silk fibroin extracellular skeleton gel material for injection. The composite filler is prepared from the following raw materials in parts by mass: 5-50 parts of silk fibroin, 0.01-5 parts of cellulose and 0.7-10 parts of hyaluronate. The preparation method comprises the following steps: (1) preparation of silk fibroin microfiber gel: adding cellulose into a silk fibroin aqueous solution to prepare gel, crushing and sieving to obtain the silk fibroin microfiber gel; and (2) preparation of an extracellular skeleton gel material: mixing hyaluronate with the silk fibroin microfiber gel, and carrying out physical crosslinking to form the silk fibroin extracellular skeleton gel material. After the modified silk fibroin hydrogel prepared by the method is injected, in-situ tissue regeneration can be promoted, the molecular weight is controllable, the crosslinking degree is controllable, the structure of the modified silk fibroin hydrogel is similar to that of an extracellular matrix (ECM), the degradation process is matched with the in-situ tissue regeneration process, and the modified silk fibroin hydrogel is well improved in the aspects of mechanical property, degradation performance, biocompatibility and the like and has good application prospects. No chemical cross-linking agent is used, and the injection has injectability, and has a very good application prospect in the field of medical beauty injection.

The invention relates to a product final inspection machine. The machine comprises a rack; the external detection module comprises a transfer mechanism, and a mixed material detection mechanism, an over-spline detection mechanism, an outer diameter detection mechanism, a length detection mechanism and a helical tooth detection mechanism which are arranged in sequence, and the transfer mechanism transfers parts in a previous process to a next process; the internal detection module comprises a turntable conveying mechanism, and an inner hole detection mechanism, a thread detection mechanism and an inner diameter detection mechanism which are arranged in sequence, and the turntable conveying mechanism conveys parts and enables the parts to pass through the inner hole detection mechanism, the thread detection mechanism and the inner diameter detection mechanism in sequence; and the robot is used for transferring the to-be-detected parts from the charging tray into the mixed material detection mechanism, transferring the parts in the helical tooth detection mechanism into the turntable conveying mechanism and taking down the parts in the turntable conveying mechanism. According to the device, detection work of all parameters of parts can be completed, feeding, discharging and transferring work of the parts can be automatically carried out, detection work of multiple parts can be carried out at the same time, and detection work of batch parts can be rapidly completed.

The invention discloses a composite solid electrolyte diaphragm which comprises a bacterial cellulose membrane, fluorinated metal modified PEO electrolyte particles and functional group modified particles, and the fluorinated metal modified PEO electrolyte particles and the functional group modified particles are loaded in a three-dimensional network structure of the bacterial cellulose membrane. The functional group modified particles are functional group modified silicon dioxide particles and functional group modified LATP particles, the functional group modified silicon dioxide particles uniformly wrap the functional group modified LATP particles, and fluorinated metal of the fluorinated metal modified PEO electrolyte particles is combined with functional groups of the functional group modified particles through coordinate bonds. The invention also discloses a preparation method of the electrolyte diaphragm and a battery with the electrolyte diaphragm. The ionic conductivity of the electrolyte diaphragm is improved.

The invention relates to the technical field of nano catalytic materials, in particular to a preparation method and application of a nano bowl-shaped molybdenum-doped metal cobalt phosphide catalyst. The preparation method comprises the following steps: S1, preparing CoMo-MOF; S2, preparing Mo-CoP; according to the application method, the nanometer bowl-shaped molybdenum-doped metal cobalt phosphide catalyst is applied to the process of catalyzing water electrolysis hydrogen absorption and oxygen absorption reaction. According to the preparation method, the Mo-doped metal organic framework is adopted as a precursor, the target catalyst is prepared through phosphating and calcining, due to the fact that the valence state of Co in cobalt phosphide is improved through molybdenum doping, the intrinsic catalytic activity of the catalyst is improved, and electrolysis of water can be effectively catalyzed.

The invention discloses a high-current-density long-term stable electrocatalytic oxygen evolution catalyst as well as a preparation method and application thereof, and particularly relates to the field of catalysts. Comprising the following steps: mixing a salt template, ruthenium salt powder and chromium salt powder to obtain mixed powder, and grinding the mixed powder to obtain a precursor; placing the precursor in a reaction container for a molten salt reaction, and cooling a reaction product with water to obtain a catalyst precursor; and adding the catalyst precursor into an acid solution for etching to obtain the high-current-density long-term stable electro-catalytic oxygen evolution catalyst. The electron transmission capability and Ru-O covalence of the catalyst are continuously regulated and controlled at the same time through continuous doping of chromium, the doping amounts of chromium in the catalyst located at the poles of the two are the same, the catalyst has high catalytic activity due to the optimal electron transmission capability and Ru-O covalence, dissolution of ruthenium dioxide in the electrooxidation reaction process is effectively hindered, and the catalytic activity of the catalyst is improved. The stability of the catalyst in an acidic oxygen evolution reaction is greatly improved.

The invention discloses a preparation method and application of a polyamide composite nanofiltration membrane containing a graphdiyne middle layer, and belongs to the technical field of membrane separation. Comprising a porous substrate, a graphdiyne middle layer and a polyamide layer. The graphdiyne is selected from graphdiyne, graphdiyne, hydrogen-substituted graphdiyne and other graphdiyne derivatives. The specific preparation method comprises the following steps: carrying out suction filtration on graphdiyne dispersion liquid to a porous substrate, respectively dipping the graphdiyne dispersion liquid in a water phase and an oil phase, carrying out interfacial polymerization to generate a polyamide membrane, and finally, drying the membrane in a constant-temperature and constant-humidity drying oven to obtain the polyamide composite nanofiltration membrane containing the graphdiyne middle layer. The preparation method disclosed by the invention is simple and efficient, and the prepared composite membrane can effectively intercept divalent salt and organic matters in water and has excellent water permeability, ion separation and antibiotic desalination effects.

The invention discloses a cooling device for cable manufacturing, and relates to the technical field of cable processing. The device comprises a base, a water storage tank is fixed to the middle of the top face of the base, guide rollers are rotationally installed on the left side and the right side of the top of the base through supports, and an air cooling fan is arranged on the right side of the top of the inner wall of the water storage tank; the water cooling device comprises a water pump, a U-shaped water pipe, a spraying pipe, two sleeve plates, a cross rod, a plurality of slapping plates and a plurality of through hole blades, the water pump is fixed to the bottom of the inner wall of the water storage tank, one end of the U-shaped water pipe is fixed to the water outlet end of the water pump, and the spraying pipe is fixed to the other end of the U-shaped water pipe. Through the arrangement of the water cooling device, cooling liquid sprayed by the spraying pipe can be dispersed through the through holes of the through hole blades, so that the dispersed cooling liquid is in uniform and effective contact with the outer surface of the cable, and the cooling effect of the cooling liquid on the cable is improved.

The invention discloses an axial flow fan convenient for filtering air impurities. The axial flow fan comprises an arranged fan body, and the interior of the fan body is connected with a motor through a supporting seat; a rotating assembly is installed on the outer side of the rotating shaft and comprises a cleaning plate installed on the outer side of the rotating shaft, a brush is arranged on the cleaning plate, a first magnetic block is arranged on the cleaning plate, the cleaning plate is connected with a filter screen through a spring seat, and a second magnetic block is installed on the surface of the filter screen. The cleaning plate of the rotating assembly rotates to drive the brush to rotate on the surface of the filter screen. According to the axial flow fan capable of conveniently filtering the air impurities, a brush on a cleaning plate can conveniently clean the surface of a filter screen through a rotating assembly, the problem that the impurity filtering efficiency is reduced due to the fact that much dust is attached to the surface of the filter screen is solved, and a first magnetic block and a second magnetic block are matched, so that the filter screen is shaken to be clean; and the problem that the working efficiency is reduced due to shutdown treatment is reduced.

The invention relates to a bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material and application thereof. The bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material is prepared by the following preparation method: preparing Ni-CoTCPP; the preparation method comprises the following steps: preparing a bimetallic porphyrin solution, immersing TiO2NTs into the porphyrin solution, stirring, taking out a titanium foil, and drying at room temperature to prepare Ni-CoTCPP / TiO2NTs; and soaking the Ni-CoTCPP / TiO2NTs into the suspension of GO, stirring, taking out the titanium foil, and drying at room temperature to obtain the Ni-CoTCPP / GO / TiO2NTs. The bimetallic porphyrin / GO / TiO2NTs ternary composite material is constructed through the action of porphyrin in photosynthesis, various targets in the field of photocatalytic CO2 reduction are achieved, and selectivity of products can be controlled while photocatalytic activity is improved.

The invention provides a full-platform detection system and an identification method, and relates to the field of data detection systems, and the full-platform detection system and the identification method comprise a USB interface module, an analysis and judgment module, a dynamic adjustment module, a driving adaptation module, a data management module, a data interaction module and a security encryption module. By means of the technology, full-process automatic processing from device insertion to final data transmission is achieved, by means of the technology, the storage device can be comprehensively compatible with Windows, Android, iOS, Mac OS and Linux systems, iOS and Mac OS of apple ecology or Windows, Android and Linux of non-apple ecology can easily deal with the conditions, data safe storage and transfer become convenient, and the method is suitable for large-scale popularization and application. The universality and convenience of the storage device are improved, the operation steps of a user are simplified, the interoperability and safety between the device and different operation systems are improved, and the method is suitable for wide application scenes, so that the requirements of the user for backing up and transferring data between different platforms are met.

The invention relates to the technical field of electrode materials, in particular to a negative active material and a preparation method thereof, a negative pole piece, a secondary battery or capacitor and an electric energy storage system. The negative electrode active material provided by the invention comprises supported molybdenum disulfide and a carbon nanotube, the supported molybdenum disulfide comprises a reduced graphene oxide carrier and modified molybdenum disulfide loaded on the reduced graphene oxide carrier, the modified molybdenum disulfide comprises molybdenum disulfide and nitrogen-doped carbon, the molybdenum disulfide has a layered structure, and the nitrogen-doped carbon is inserted between layers of the molybdenum disulfide; wherein carbon nanotubes are filled between lamellas of at least part of the supported molybdenum disulfide; the reduced graphene oxide carrier and the carbon nanotubes are provided with etched holes. The negative electrode active material provided by the invention can effectively relieve the problems of volume change and structural collapse of the electrode material in the charge-discharge process, and improve the structural stability and conductivity, so that the capacity and cycle performance of the secondary battery can be effectively improved.

The invention provides an electrode plate, a preparation method thereof and a lithium ion battery, and belongs to the technical field of battery materials. The electrode pole piece comprises a current collector and an active layer arranged on the surface of at least one side of the current collector, materials of the active layer comprise an active material, a conductive agent, a fibration binder and a pore forming agent, and the pore forming agent is at least partially dispersed in micropores of the fibration binder; and the pore forming agent comprises LiFSi and / or LiPO2F2. The introduced pore-forming agent can occupy space in the active layer, at least part of the pore-forming agent can enter micropores of the fibration binder, entering of the conductive agent is reduced, more conductive agent makes contact with the active particles, when the electrode plate is wound into a roll core and then injected, the pore-forming agent can be dissolved in electrolyte, micropores are formed in the original positions, and the pore-forming agent can be dissolved in the electrolyte. The porosity of the electrode plate is increased, the infiltration of electrolyte and the transmission of lithium ions are facilitated, and the cycle and fast charge performance of the battery can be improved.