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40results about How to "Quick restore" patented technology

Deep rock mass excavation water inrush disaster testing device

The invention discloses a deep rock mass excavation water inrush disaster testing device which comprises a testing box body, a pressurizing device arranged on the upper side of the testing box body, a simulation surrounding rock arranged in the testing box body, an excavation channel arranged on the lower portion of the simulation surrounding rock, a rigid protection pipe arranged in the simulation surrounding rock, and through grooves formed in the inner arc face of the rigid protection pipe at intervals. A test water pipe is arranged in the rigid protection pipe, at least two partition plates are embedded in the simulated surrounding rock, and a crushing device is arranged between the two partition plates. The simulation surrounding rock is filled in the test box body, the excavation channel is arranged, the partition plate is arranged at the corresponding position of the excavation channel, the test area is defined, and the water inrush test can be carried out in different areas; after the test is completed, the simulated surrounding rock at the water inrush position is broken and dismantled and then is refilled, poured and filled, so that a test scene can be quickly restored, the test can be performed again after test parameters are changed, and the test efficiency is improved.
Owner:HUAQIAO UNIVERSITY

Flash and top blowing coupled molten pool tin smelting device and method

The invention discloses a flash and top blowing coupled molten pool tin smelting device and method, and belongs to the technical field of pyrogenic smelting of crude tin. Tin concentrate, fuming enriched tin middling and powdery tin smoke dust are subjected to ore blending with a flux and then are smelted; adding a carbonaceous reducing agent into the molten pool, and reducing to form a CO reducing atmosphere layer at the upper part of the slag layer; and blowing fluidized bed furnace roasting dry powder to the upper part of the CO reducing atmosphere layer, carrying out flash reduction smelting on the fluidized bed furnace roasting dry powder, enabling the fluidized bed furnace roasting dry powder which is not subjected to flash reduction smelting to enter a molten pool, and continuing to carry out a reduction stage in top-blowing molten pool smelting, so that flash and top-blowing coupling is realized, and crude tin is prepared. According to the invention, flash melting pool smelting and top-blowing melting pool smelting are effectively coupled together, fuel consumption can be reduced by about 20%, and the bed capacity is obviously improved.
Owner:YUNNAN TIN CO LTD TIN BRANCH +1

Multichannel video signal automatic switching method and device based on director switching station

The invention relates to the technical field of video signal switching, and discloses a multi-channel video signal automatic switching method and device based on a director switching table. The method comprises the following steps: carrying out preprocessing and feature calculation on a plurality of video signal channels, generating a signal feature vector set and a signal quality index, and constructing a dynamic weight matrix; executing self-adaptive frame rate control and energy optimization to obtain an optimized hardware working state and a pre-heating cache state; generating scene change mapping; executing an intelligent switching decision and signal fusion to obtain a video signal and a switching log after transition processing; performing data compression and transmission optimization, and generating a compressed data stream and a transmission control parameter; according to the multi-channel video signal processing and switching method and the multi-channel video signal processing and switching device, full-process automation from video signal preprocessing to final output is realized, the multi-channel video signal processing and switching efficiency is greatly improved, and intervention of manual operation and possible errors are reduced.
Owner:ZHONGYI INSTECH TECH CO LTD

Zinc-containing dust fluidization hydrogen group reduction comprehensive utilization method

PendingCN119614896Aquick restoreComplete restorationFluidised-bed furnacesProcess efficiency improvementNitrogen gasZinc
A zinc-containing dust fluidization hydrogen group reduction comprehensive utilization method belongs to the technical field of zinc-containing dust treatment, and comprises the following steps: screening and crushing collected zinc-containing dust, and then drying to obtain pretreated zinc-containing dust; nitrogen is introduced into the fluidization reaction device, the zinc-containing dust is added for heating, and after the temperature is stable, hydrogen is introduced to reduce the flow of the nitrogen; when the hydrogen flow reaches a specified value, the hydrogen channel is kept open, the nitrogen channel is closed, and fluidized hydrogen group reduction roasting is carried out by controlling the temperature; after gaseous zinc is formed, the gaseous zinc enters a condensation system with inert gas along with hydrogen flow to be condensed into metal zinc particles, the metal zinc particles are collected and recycled, and solid metal iron is reserved at the bottom of the reaction device; and the roasted gas enters a tail gas treatment system and is recycled after being purified. Hydrogen reduction adopted by the method has lower environmental influence, the rapid and thorough reduction process can be achieved under the high-temperature condition, and the current requirements of green metallurgy and low-carbon economy are met.
Owner:NORTHEASTERN UNIV CHINA

A heterojunction composite catalyst and its preparation method and application

The invention discloses a heterojunction composite catalyst and a preparation method and application thereof. The heterojunction composite catalyst of the invention comprises the following steps: melamine is calcined multiple times to obtain graphite-like carbon nitride nanosheets; copper salt, indium salt and thioacetamide are dissolved in water, and then graphite-like carbon nitride nanosheets are added, and the heterojunction composite catalyst is obtained after sufficient reaction at 80°C to 120°C. The heterojunction composite catalyst of the invention is a graphite-like carbon nitride main material obtained by multiple calcinations, and the copper indium sulfur compound is loaded on the graphite-like carbon nitride by in-situ deposition. The catalyst is a two-dimensional trapezoidal heterojunction catalyst, which has the advantages of high efficiency, good activity, good stability, environmental friendliness and low production cost in photocatalytic production of H2O2, and is suitable for actual production and application.
Owner:INST OF CHEM ENG GUANGDONG ACAD OF SCI

Fuel cell recovery method

The embodiment of the invention discloses a fuel cell recovery method, and the method comprises the steps: controlling a fuel cell to operate for a first preset time under a first preset current density and a first preset voltage through obtaining a reference voltage of the fuel cell, and reducing a cathode stoichiometric ratio to a preset cathode stoichiometric ratio to reach an oxygen-deficient state, operating for a second preset time under a second preset current density and an oxygen-deficient state, and measuring a target voltage after the fuel cell operates for the second preset time; and comparing the reference voltage with the target voltage to generate a recovery result of the fuel cell. According to the fuel cell recovery method provided by the invention, various reversible attenuation of the fuel cell can be recovered by using available reactants in the fuel cell system under the condition of no additional pipeline control system or inert gas.
Owner:CHINA AUTOMOTIVE INNOVATION CORP

System for preparing novel furnace charge by adopting super-thick material layer

The utility model belongs to the technical field of annular furnace smelting, and relates to a system for preparing a novel furnace material by adopting an ultra-thick material layer, which comprises an annular heating furnace and a flue gas circulation subsystem, and the annular heating furnace is sequentially divided into a forced air drying section, an air draft preheating section, a reaction section, a first-stage cooling section, a second-stage cooling section and a discharging section according to the rotating direction; the flue gas circulation subsystem comprises a drying section fan cover, a preheating section fan cover, a reaction section fan cover, a cooling section fan cover, a drying section flue gas dust collection bin and a preheating section flue gas dust collection bin installed below the air draft preheating section. The reaction section flue gas dust collecting bin is mounted below the reaction section; the cooling section flue gas dust collecting bin is mounted below the primary cooling section and the secondary cooling section; a cooling medium conveying pipeline is connected to the bottom of the cooling section flue gas dust collecting bin, the cooling section fan cover is connected with the drying section flue gas dust collecting bin, the reaction section flue gas dust collecting bin is connected with the preheating section fan cover and the reaction section fan cover, and the drying section fan cover and the preheating section flue gas dust collecting bin are connected with a chimney.
Owner:CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD

Oxygen vacancy-rich cobalt oxide / ferroferric oxide composite catalyst and preparation method and application thereof

The invention discloses an oxygen-vacancy-rich cobalt oxide / ferroferric oxide composite catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: mixing Co3O4 nanoparticles with polyol, adding ferric salt, dissolving, adding a chelating agent for a coordination reaction, adding a pH regulator for a solvothermal reaction, filtering, washing, and drying to obtain the oxygen-vacancy-rich cobalt oxide / ferroferric oxide composite catalyst. The oxygen vacancy-enriched cobalt oxide / ferroferric oxide composite catalyst is obtained. The composite catalyst disclosed by the invention has the characteristic of being rich in oxygen vacancies, can enhance the adsorption and activation capability on nitrate, can realize efficient electrocatalytic reduction of nitrate, also has very excellent stability, and has important application value in the aspects of nitrate wastewater treatment, ammonia synthesis and the like. According to the invention, the oxygen-vacancy-rich cobalt oxide / ferroferric oxide composite catalyst is prepared into a catalytic electrode, and the catalytic electrode is used as a working electrode for constructing an electro-catalysis device, so that efficient electro-catalysis of nitrate can be realized, and the nitrate can be rapidly reduced into ammonia.
Owner:HUNAN AGRI UNIV

A deep rock excavation water inrush disaster testing device

ActiveCN119124861Bquick restoreEasy to change test parametersMaterial strength using tensile/compressive forcesEarth material testing
The present invention discloses a deep rock excavation water inrush disaster testing device, comprising a test box, a pressurizing device arranged on the upper side of the test box, a simulated surrounding rock arranged in the test box, an excavation channel arranged at the lower part of the simulated surrounding rock, a rigid protective pipe arranged inside the simulated surrounding rock, through grooves arranged at intervals on the arc surface of the rigid protective pipe, a test water pipe arranged inside the rigid protective pipe, at least two partitions buried in the simulated surrounding rock, and a crushing device arranged between the two partitions. The present invention can perform water inrush tests in different areas by filling simulated surrounding rock in the test box, setting an excavation channel, and setting partitions at corresponding positions of the excavation channel to delimit the test area; after the test is completed, the simulated surrounding rock at the water inrush position is crushed and removed, and then refilled and poured to fill, so that the test scene can be quickly restored, which is convenient for retesting after changing the test parameters, thereby improving the test efficiency.
Owner:HUAQIAO UNIVERSITY

Image processing device and method thereof

PendingCN119135816AReduce image processingquick restoreTelevision system detailsColor television detailsImaging processingComposite film
The invention discloses an image processing device and a method thereof. The device comprises a first camera, a second camera and an image processing circuit. The first camera shoots a first film in a visible light mode, the second camera shoots a second film in a visual detection mode, and event data is output according to the movement change of a moving object in the second film. The image processing circuit respectively controls the first camera and the second camera to synchronously shoot the target area. When the second camera shoots that the moving object in the target area moves and changes, the second camera outputs event data to the image processing circuit, and the image processing circuit compensates a blurred image in a first film corresponding to the shooting position in the first camera according to the event data to obtain a clear image. And covering the display position where the fuzzy image appears in the first film with the clear image to form a composite film and outputting the composite film. According to the invention, image processing is only carried out on fuzzy images, and the image processing amount is reduced.
Owner:YAOFA INTERNET OF THINGS TECHNOLOGY (SHENZHEN) CO LTD

Nanoscale zero-valent iron for electro-reduction of nitrate to ammonia and preparation method and application thereof

ActiveCN121087528BPrecise control of crystal structurePrecise control of electron transfer capabilities
The application discloses a kind of nanometer zero-valent iron for electric reduction of nitrate synthesis ammonia and its preparation method and application.The catalyst is nanometer zero-valent iron material for electric reduction of nitrate synthesis ammonia, using one-step method and by regulating and controlling cobalt reagent dosing amount, nanometer zero-valent iron for electric reduction of nitrate synthesis ammonia with different cobalt content is prepared.The application includes using the catalyst as cathode, in the double-chamber electrolytic cell and direct current power supply double-chamber flow electrolytic cell system equipped with three electrodes, ammonia is prepared by electrocatalytic reduction of nitrate, and ammonia is recovered by acid absorption liquid device.The catalyst delays the problems of easy passivation of nanometer zero-valent iron and serious hydrogen evolution side reaction in the process of electrochemical reduction of nitrate, accelerates the reduction rate of nitrate, improves the ammonia selectivity and faraday efficiency of nitrate, and shows stable application performance in the process of actual wastewater electrocatalytic long-term treatment.
Owner:ZHEJIANG UNIV

Electro-catalytic reduction membrane for high-selectivity electro-catalysis low-concentration nitrate water reductive denitrification and preparation method of electro-catalytic reduction membrane

The invention discloses an electrocatalytic reduction membrane for high-selectivity electrocatalytic low-concentration nitrate water reductive denitrification and a preparation method of the electrocatalytic reduction membrane, and belongs to the technical field of water treatment. The method solves the problems that the removal efficiency of the low-concentration nitrate polluted water body is insufficient by adopting a conventional water treatment process, and the cost is high, the economical efficiency is poor and the environment is not protected when ammonia is directly recovered by adopting an electrocatalytic reduction method. The preparation method comprises the following steps: performing high-temperature pyrolysis on a copper-doped ZIF-8 material to obtain a Cu-CN / CB catalyst, mixing the Cu-CN / CB catalyst with PVDF and acidified CNT, and performing suction filtration to form the electrocatalytic reduction membrane. Carbon black is used as a core to grow copper-doped ZIF-8, the catalyst is obtained after carbonization, metal on the catalyst is uniformly distributed, catalytic sites are dense, and a conductive network is constructed by CNT; and by taking the reduction membrane as a cathode, optimizing the mass transfer efficiency of the catalyst and nitrate in a low-concentration nitrate water body through the CNT-Cu-CN / CB network, and fully completing nitrate adsorption-catalytic degradation in a confinement space.
Owner:HARBIN INST OF TECH

Preparation method and application of nano silicon carbide

The invention discloses a preparation method and application of nano silicon carbide, and the nano silicon carbide is prepared by taking petroleum-based hydrocarbon as a carbon source and nano silicon particles obtained by reducing a silicon-containing compound as a silicon source through a two-step method of combining low-temperature reduction with calcination. Specifically, a silicon-containing compound, hydride, molten salt and petroleum-based hydrocarbon are subjected to low-temperature heating reduction to obtain a carbon-silicon compound, and then the carbon-silicon compound is calcined in an argon environment to generate 3C crystal form silicon carbide particles with the particle size being 10-20 nm. When the prepared nanometer silicon carbide is used as a lithium ion battery negative electrode for testing, the nanometer silicon carbide shows relatively good cycle stability and rate capability. The nano silicon carbide is prepared by a simple method of combining low-temperature reduction with calcination, mechanical crushing is not needed, and the prepared nano silicon carbide is a lithium ion battery negative electrode material with high cycling stability and good electrochemical performance.
Owner:SUZHOU XINENG CARBON SILICON TECH CO LTD

Hierarchical operating system and method for CAD system reference

The invention relates to a hierarchical operating system referenced by a CAD (Computer Aided Design) system, which is characterized by comprising a first file comprising at least one first element; the second file comprises at least one second element; the at least one first element is copied and superposed into the second file; the at least one first element is associated with a first control point through which independent operation of the at least one first element can be achieved. According to the method, the problem that a nested content display mode is difficult to convert in an external reference mode in an existing CAD system is solved, a CAD user can conveniently and quickly select to display or hide quoted content, drawing reference / quotation is more convenient, and the working efficiency during CAD drawing collaborative design is improved.
Owner:SUZHOU CAD SOFTWARE CO LTD

Method for preparing duplex stainless steel powder through plasma rotating electrode atomization

The invention discloses a method for preparing duplex stainless steel powder through plasma rotating electrode atomization, and belongs to the technical field of metal powder preparation. The method comprises the steps that a duplex stainless steel consumable electrode is atomized in plasma rotating electrode atomization equipment under the argon-nitrogen-hydrogen ternary mixed atmosphere with the specific proportion and the micro-positive pressure condition, powder forming and in-situ nitriding are achieved in one step, and then obtained powder is subjected to vacuum dehydrogenation heat treatment. By accurately controlling parameters such as mixed gas proportion, dehydrogenation temperature and time and the like, based on the characteristics of plasma rotating electrode atomization, high nitrogen, low oxygen, high sphericity, uniform components and few impurities of the powder are realized, and the method is particularly suitable for high-end manufacturing fields such as hot isostatic pressing and additive manufacturing.
Owner:GRINM ADDITIVE MFG TECH CO LTD

Simulation cabin entertainment system, vehicle simulation test method and long mileage test method

The invention discloses a simulation cabin entertainment system, a vehicle simulation test method and a long mileage test method, and relates to the technical field of automatic test. The simulation cabin entertainment system comprises an industrial personal computer, a programmable power supply, a CAN board card and a relay board card. After a real vehicle CAN message is obtained, an industrial personal computer can be utilized to analyze the real vehicle CAN message to obtain target data, and according to the target data, a first control signal is sent to a programmable power supply, a second control signal is sent to a CAN board card, and a power supply mode signal and a third control signal are sent to a relay board card. The programmable power supply outputs a power supply waveform and a voltage value matched with the real vehicle CAN message according to the first control signal; the CAN board card outputs a simulation CAN message matched with the real vehicle CAN message according to the second control signal; and the relay board card controls the connection or disconnection of the relay according to the power supply mode signal and the third control signal.
Owner:SAIC MOTOR

Fnerenone intermediate as well as preparation method and application thereof

The invention discloses a fenerenone intermediate II with a brand new structure or an optical isomer IIa of the fenerenone intermediate II and a preparation method of the fenerenone intermediate II, compared with a reaction taking 3-oxobutyric acid-2-cyanoethyl ester as a starting material, the reaction yield is improved; the invention further discloses a fenerenone intermediate III with a brand new structure or an optical isomer IIIa thereof and a preparation method thereof. The fenerenone intermediate III or the optical isomer IIIa has ester bond reduction reaction activity. Besides, the invention further discloses application of the Fnerenone intermediate II or the optical isomer IIa thereof and the intermediate III or the optical isomer IIIa thereof in preparation of Fnerenone, reduction can be achieved under the action of reducing agents such as zinc powder, expensive catalysts such as palladium carbon are not needed, the technical effect of rapid reaction under mild reaction conditions is achieved, and the method is not only suitable for small-scale tests, but also suitable for industrial production. The method is more suitable for industrial large-scale production.
Owner:HANGZHOU BIO SINCERITY PHARMA TECH CO LTD

Method for removing hexavalent chromium in laterite-nickel ore high-pressure acid leaching process

PendingCN119120933ADoes not affect the high-pressure acid leaching processquick restoreLateriteReducing agent
The invention provides a method for removing hexavalent chromium in a laterite-nickel ore high-pressure acid leaching process. According to the method, after a CCD countercurrent washing step, CCD overflow liquid is obtained; whether hexavalent chromium ions exist or not is judged according to the b value of the LAB color mode of the CCD overflow liquid, and the concentration of the hexavalent chromium ions in the CCD overflow liquid is detected according to the potential value of the CCD overflow liquid; secondly, adding a reducing agent into the CCD overflow liquid, and enabling the CCD overflow liquid added with the reducing agent to enter a first-stage iron and aluminum removal step; optionally, after the first-stage iron and aluminum removal step, whether hexavalent chromium ions exist or not is judged according to the b value of the LAB color mode of the liquid obtained after first-stage iron and aluminum removal, if yes, the concentration of the hexavalent chromium ions in the liquid is detected according to the potential value of the liquid obtained after first-stage iron and aluminum removal, and a reducing agent continues to be added into the liquid obtained after first-stage iron and aluminum removal. The problems that in the laterite-nickel ore high-pressure acid leaching process, the chromium content is not detected in time, the using amount of a reducing agent for removing hexavalent chromium is large, and efficiency is low are solved.
Owner:CHINA ENFI ENG CORP +1

A fast and accurate restoration method for dynamic files based on NFS

The present invention belongs to the field of data processing technology, and discloses a fast and accurate restoration processing method for dynamic files based on NFS. The specific operation steps are as follows: the first step is to input the data to be processed into a database to be processed; the second step is to then distribute the data system in the database to be processed to various hierarchical processing programs. The present invention pre-blocks the file data, then sets the corresponding limit value, and adopts a staged file processing method to effectively avoid the traditional centralized processing situation. This patent implements the NFS protocol based on the flow of file restoration process, does not need to cache a large number of files, and is pre-set with multiple docking devices to divide the huge data files into multiple files, and simultaneously speed up its work efficiency. Finally, when the corresponding summary program is set, the pre-processed partial files will be spliced ​​together, and the final output is a complete and effective restoration file.
Owner:NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT

Process for the preparation of a hydrogenated aldehyde-ketone resin free of free formaldehyde

The application discloses a preparation method of hydrogenated aldehyde ketone resin without free formaldehyde, belongs to the technical field of aldehyde ketone resin synthesis, and aims to solve the technical problems of high free formaldehyde content, and further improved hydroxyl value stability and transparency in the hydrogenated aldehyde ketone resin in the prior art, and specifically comprises the following steps: under the protection of an inert gas atmosphere, phenylacetone, polyformaldehyde and a solvent are mixed and stirred, the reaction system is heated to 60-75 DEG C, and an inorganic alkali is added into the reaction system. The application is characterized in that the basic aldehyde ketone resin solution prepared by condensation of polyformaldehyde and phenylacetone in a water-free environment with a nickel catalyst is catalytically hydrogenated, not only the hydrogenated aldehyde ketone resin with stable hydroxyl value and extremely low colority is effectively obtained, but also the free formaldehyde content in the hydrogenated aldehyde ketone resin is effectively reduced, and the wide applicability of the hydrogenated aldehyde ketone resin in high-end coatings, adhesives and electronic materials is improved.
Owner:ANHUI ROOKIE CHEM CO LTD

Ball-milling mixed iron powder, its preparation method and application

The application discloses a ball-milling mixed iron powder and a preparation method and application thereof. The mixed iron powder is prepared from iron powder, a solid oxidizing agent and a phenolic compound as raw materials. In a ball-milling condition, different valence iron species are generated in situ through a pre-oxidation effect of the solid oxidizing agent, self-depassivation is realized, and the passivation phenomenon generated by zero-valent iron in water is overcome. The mixed iron powder has high reactivity and can be used for wastewater treatment containing oxidizing components.
Owner:ZHEJIANG UNIV OF TECH

Method for preparing nano-catalyst by dielectric barrier discharge low-temperature plasma and application of nano-catalyst

The invention discloses a method for preparing a nano-catalyst by dielectric barrier discharge low-temperature plasma and application. The preparation method comprises the following steps: (1) preparing hydroxyapatite; (2) dipping in a transition metal salt solution: placing the hydroxyapatite obtained in the step (1) in the transition metal salt solution, and drying to obtain a precursor I; (3) dipping in a noble metal salt solution: placing the precursor I obtained in the step (2) in the noble metal salt solution, and drying to obtain a precursor II; and (3) preparation of the catalyst: carrying out dielectric barrier discharge low-temperature plasma treatment on the precursor II to obtain a catalyst finished product. The particle size of the prepared catalyst is nanoscale, the obtained catalyst is small in particle size and good in dispersity, and the toluene catalytic oxidation activity is higher than that of a catalyst obtained through a traditional thermal preparation method.
Owner:SHENYANG NORMAL UNIV

Efficient cutting structure for stacked automobile seat fabric

The utility model provides an efficient cutting structure for stacked automobile seat fabric. The stacked type automobile seat fabric efficient cutting structure comprises a fabric stacking assembly, a cutting knife and a pressing head. The cutting knife is arranged on the pressing head in a protruding mode, the pressing head is used for pressing the stacked fabric assembly, and the cutting knife is used for cutting the stacked fabric assembly; the stacked fabric assembly comprises an oiled paper film, a plurality of fabric pieces and bottom punching paper which are sequentially stacked; the oil paper film faces the cutting knife, a plurality of vent holes are formed in the bottom punching paper, and the bottom punching paper is used for abutting against the workbench. A plurality of suction holes are further formed in the end, close to the cutting knife, of the pressing head, and all the suction holes face the fabric stacking assembly. According to the efficient cutting structure for the stacked type automobile seat fabric, negative pressure suction can be conducted on the fabric piece through the suction holes, so that the fabric piece can be rapidly restored after deformation, the problem that the cutting precision is low due to the deformation amount of the fabric piece is effectively solved, and finally the flatness of a tangent plane is improved.
Owner:MEIZHOU HONGYUAN AUTO PARTS CO LTD

Chip collecting device for lathe and lathe

The present invention relates to the field of machining chip collection, and specifically to a lathe chip collection device and a lathe, which can block the flying iron chips during lathe processing and are easy to collect, and can be quickly connected and disassembled. A lathe chip collection device, the device includes a side baffle plate, a top plate, a guide groove and a base, the side baffle plates are two and symmetrically arranged, the tops of the two side baffle plates are connected by the top plate, the guide groove is inclined, and is detachably connected to the lower part of the side baffle plate, and the base is fixedly connected to the side baffle plate. A lathe uses the above-mentioned lathe chip collection device.
Owner:CHENGXI SHIPYARD

High-purity rhenium powder and method for producing the same

PendingCN122441966AEfficient cleaning preparationAvoid introducingMetal powderHigh activity
The application belongs to the technical field of metal powder preparation, and particularly relates to high-purity rhenium powder and a preparation method thereof. The high volatility of rhenium oxide is utilized, efficient volatilization of rhenium oxide is realized under vacuum conditions, and the high activity of hydrogen radio frequency plasma is utilized to rapidly and completely reduce the rhenium oxide vapor into high-purity rhenium powder, so that the reduction reaction efficiency is significantly improved, efficient and clean preparation of rhenium powder is realized, the problem of impurity introduction in the traditional reduction method can be avoided, and the product purity and particle size can meet the application requirement of high-end fields.
Owner:ANHUI FENGLU TECHNOLOGY CO LTD

Laser curing type conductive silver ink for electronic components and preparation method of laser curing type conductive silver ink

The invention discloses laser curing type conductive silver ink for electronic components and a preparation method of the laser curing type conductive silver ink. The laser curing type conductive silver ink comprises a silver precursor, an amine complexing agent, a non-polar organic solvent and an additive, a silver precursor and an amine complexing agent form a uniform and stable silver-amine complex solution in a non-polar organic solvent. The preparation method comprises the following steps: uniformly mixing a non-polar organic solvent, an amine complexing agent and an additive, then adding a silver precursor, stirring until the silver precursor is completely dissolved, and filtering to obtain the conductive silver ink with excellent conductivity, stability and printing performance. The invention also provides a method for preparing a conductive film on a substrate by using the conductive silver ink through a laser sintering process. According to the conductive silver ink, the light absorption characteristic of the silver-amine complex is regulated and controlled through the non-polar solvent, so that the conductive silver ink perfectly adapts to a laser sintering process, and the conductive silver ink has the advantages of being low in curing energy consumption, short in curing time, free of thermal damage to a flexible base material, high in conductivity of a formed silver film, high in adhesive force and the like, and is suitable for the fields of flexible electronics, printed circuits and the like.
Owner:FUZHOU UNIV +1

Structural image restoration method, device, electronic device, medium and program product

The present invention discloses a structural image restoration method, device, electronic device and readable storage medium, the method comprising: receiving a restoration request for an original structural image; responding to the restoration request, performing text recognition on the original structural image to obtain the original text; responding to the restoration request, performing node recognition and line recognition on the original structural image to obtain structural information, the structural information comprising multiple hierarchical nodes and logical lines between the hierarchical nodes; responding to the restoration request, determining the position information between the original text and the hierarchical nodes and the logical lines in the original structural image; restoring the original structural image according to the original text, the structural information and the determined position information to obtain a restored structural diagram. The above scheme can realize the rapid restoration of the original structural image.
Owner:BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD

A data compression and restoration transmission method, system and storage medium of a laser radar

ActiveCN116455398Bquick restoreCompressed transfer memory sizeCode conversionTransmission format adaptationData compressionOriginal data
The application discloses a kind of data compression of laser radar and restores transmission method, system and storage medium, wherein the method comprises: obtaining laser radar original data information;Laser radar original data is deburred and fitted, and filtered laser radar data information is obtained;The filtered laser radar data is compressed and packet processing, and the data information of compression processing is obtained;Compressed data is sent to receiving end;Receiving end sends compressed data to preset restoration algorithm, and obtains laser radar restoration data.The application is compressed by special compression processing algorithm, not only the smooth operation of radar original data, and greatly compressed the transmission memory size of data, improve transmission efficiency, reduce the transmission load of controller.
Owner:GUANGDONG SONGSHAN POLYTECHNIC COLLEGE

Data compression and reconstruction method and system for thermal power plant

The invention discloses a data compression and reconstruction method and system for a thermal power plant, and belongs to the field of data management, and the method comprises the steps: determining thermal equipment of the thermal power plant, obtaining the historical data of the thermal equipment, and constructing a VAE model based on the historical data; interacting the thermal equipment, acquiring real-time data of the thermal equipment, inputting the real-time data into the VAE model for data compression, acquiring compressed data, and storing the compressed data into a database; and when the data of the thermal equipment needs to be checked, reading the compressed data from the database, and inputting the compressed data into the VAE model for data reconstruction to obtain reconstructed data. According to the method, the technical problems of high cost and low efficiency of mass data storage of the thermal equipment of the thermal power plant in the prior art are solved, and the technical effects of effectively compressing the data of the thermal equipment of the thermal power plant, reducing the storage cost and conveniently reconstructing and checking the data are achieved while the data quality is ensured.
Owner:HUNAN DATANG XIANYI TECH CO LTD