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29results about How to "Widely used value" patented technology

Special anti-fogery printing ink and production thereof

InactiveCN1613922AWidely used valueBig progressInksSolventMarking Ink
The invention is about a method of marking ink which is only used to defend fake. The composition of it is: lipidol or lipid, surface active agent, integration agent, water, buffering agent. Their mass percents are: 1,2-hexylene glycol: 5%-15%, butanol: 1-5%, DH-1: 5-10%, EDTA: 0.1-0.5%, MS-1: 0.1-1%, water: the rest. The process is: a. dissolving the colorant in water, b. put the correct percent of 1,2-hexylene glycol and butanol into the solvent, then dropping the MS-1 and EDTA solution when mixing the solvent for 30-50 min, c. put the rest precent of water into the printing ink box. The picture and word would be shown red fluorescence in the UV but blank in the usual light.
Owner:邱华生

Waste plastic grading carbonization device and waste plastic treatment method

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.
Owner:GANTRY LAB

Ore crushing and grinding process capable of preventing over-grinding of easily-argillized ore

PendingCN121797470AWidely used valuesimple processGrain treatmentsMining engineeringSlurry
The invention discloses an anti-over-grinding crushing and grinding process for easy-to-argillization ore, which mainly comprises the following steps of: crushing raw ore and transferring the crushed raw ore into a surge bin; ore in the surge bin is transferred to a first double-layer vibrating screen for wet type pre-screening, oversize and intermediate products enter the semi-autogenous mill, and undersize products are pumped to the ore discharge end of the semi-autogenous mill. Ore discharged by the semi-autogenous mill and undersize products enter a second double-layer vibrating screen to be classified, oversize products are subjected to hard rock crushing and then return to an ore feeding belt of the semi-autogenous mill, intermediate products enter a lattice type ball mill, and ore grinding products and undersize products of the second double-layer vibrating screen are combined and pumped into a cyclone to be classified. And underflow of the cyclone is classified by a high-frequency sieve, oversize return to a ball mill for regrinding, and overflow and undersize products of the high-frequency sieve are combined into finished ore pulp to be fed into a sorting process. The process flow is simple, one-stage crushing and ore washing and screening before grinding are adopted, and forced discharging equipment such as a semi-autogenous mill is matched, so that over-grinding can be effectively prevented, and the ore grinding energy consumption is reduced.
Owner:CITIC HEAVY INDUSTRIES CO LTD

Infrared small target detection method based on enhanced dynamic deformable convolution

The invention relates to the technical field of computer vision, and particularly discloses an infrared small target detection method based on enhanced dynamic deformable convolution, which comprises the following steps of: constructing an encoder-decoder reference network, replacing standard convolution with the enhanced dynamic deformable convolution in an encoder, fusing multi-scale features through a dynamic routing mechanism, and detecting a small target based on the enhanced dynamic deformable convolution. And a direction perception offset enhancement module is utilized to guide a convolution sampling point to accurately position a small target, and background noise is effectively suppressed. In addition, a semantic refinement module is introduced in an encoder-decoder transition stage, and deep semantics are enhanced through multi-scale deep convolution and channel shuffling and are focused on a small target. Experiments show that compared with the prior art, the method achieves higher detection precision and lower false alarm rate on a plurality of public data sets, and is especially suitable for infrared small target accurate detection under a complex background.
Owner:HENAN UNIV OF SCI & TECH

Underwater wireless optical communication assembly adapted to existing connectors

ActiveCN117913583BWidely used valuereduce volume
The application relates to an underwater wireless optical communication assembly which is adapted to an existing connector, and the existing connector comprises a plug and a socket which are front-end matched, the communication assembly comprises a transmitting end and a receiving end, the transmitting end and the receiving end each comprise a cylindrical outer shell body, the outer shell bodies of the transmitting end and the receiving end are fixed on the front end faces of plug flanges and socket flanges respectively, light source transmitting systems and detector receiving systems are fixed in the outer shell bodies, the light source transmitting systems are provided with a plurality of light sources which are annularly distributed around the central axes of the outer shell bodies, the detector receiving systems are provided with detectors which are located on the same circumferences as the light sources, and deep water sealing connectors are further connected to the tail parts of the outer shell bodies, and are used for realizing the interaction of the transmitting end or the receiving end with user end information. The application can be used in cooperation with the existing connector, realizes fast installation and fixing, does not need to be angle-adjusted and aligned, and does not need to additionally open holes on the equipment.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

Food processing device

ActiveCN224597538UWidely used valueAchieve the purpose of automatic loading and palletizing
The utility model relates to a kind of food processing device, it includes successively arranged forming machine, water sprayer, powder wrapping machine and tray loader, the forming machine has multiple discharge mechanisms of side-by-side arrangement, each discharge mechanism is connected with the first transmission chain of water sprayer by a chute, and the center of each chute outlet is opposite with the center of corresponding groove in the upper tray box of tray loader, so that blank that is exported by the chute outlet can smoothly fall into the groove of the tray box of tray loader after water sprayer and powder wrapping machine. The utility model adds chute at the discharge mechanism of forming machine, makes the blank sent by chute and the groove in the tray box at tray loader corresponding, and then make the blank after each processing step processing can smoothly enter the groove in the tray box, realize the purpose of automatic loading.
Owner:LUOYANG BAILUNSHI AUTOMATION TECH CO LTD

Energy storage deicing building block brick based on industrial waste

PendingCN121992694AWidely used valueImprove the level of comprehensive utilizationMultiple fixed capacitorsSingle unit pavingsBrickStructural engineering
The invention belongs to the technical field of functional building materials, and particularly relates to an industrial waste-based energy storage and deicing building block brick, which comprises a cavity brick body, a brick cover arranged at the top of the cavity brick body, and a capacitor array arranged in a cavity of the cavity brick body, the cavity brick body is of a cuboid hollow structure, the top of the cavity brick body is open, the brick cover is a rectangular cover plate matched with the cavity brick body, the capacitor array comprises a plurality of capacitor monomers which are connected in series, and a separation diaphragm is arranged between every two adjacent capacitor monomers; each capacitor monomer comprises an anode electrode, an anode electrolyte, a diaphragm, a cathode electrolyte and a cathode electrode which are connected in sequence. The capacitor array is used as an energy storage unit to be integrated in the cavity of the cavity brick body, synchronous construction of energy storage and building block brick components is achieved through the cavity brick body-capacitor array-brick cover integrated structure, the system integration degree is high, the structure is compact, road paving and subsequent modular replacement and maintenance are facilitated, and the integrated energy storage and building block brick is suitable for application and popularization.
Owner:HENAN SITONG ENG TESTING CO LTD +1

Flow electrolysis unit for enhanced carbon dioxide mass transfer and its application

ActiveCN119913536BOvercoming Mass Transfer Limiting ProblemsIncrease current densityCellsElectrodesElectrolytic agentHigh current density
This invention relates to a flow-type electrolysis device for enhancing carbon dioxide mass transfer and its application, comprising: a clamping assembly including a first clamping plate and a second clamping plate; at least one set of electrode assemblies, each including a cathode plate and an anode plate, the cathode plate being connected to the first clamping plate and the anode plate being connected to the second clamping plate, the cathode plate having a cathode medium outlet and a cathode medium inlet, and the anode plate having an anode medium outlet and an anode medium inlet; and a bipolar plate located between the cathode plate and the anode plate; wherein the diameter of the bipolar plate outlet is smaller than the diameter of the bipolar plate inlet. This invention utilizes the electrolyte flow characteristics to solve the problems of difficult water management and poor stability caused by salt deposition in traditional membrane reactors, ultimately achieving both high current density and stability in the electrocatalytic reduction of carbon dioxide. This enhances the carbon dioxide mass transfer process.
Owner:CHINA PETROLEUM & CHEMICAL CORP +4

Drive device of vehicle and vehicle comprising same

ActiveCN116394743BAchieve high integrationWidely used value
The application provides a driving device of a vehicle and a vehicle comprising the same, wherein the driving device of the vehicle comprises: a shell configured with a cavity; an inner sleeve configured as a cylindrical structure matched with the cavity and arranged in the cavity to place a stator and a rotor of a motor, an outer wall of the inner sleeve towards one side of the shell is provided with a plurality of circumferential ribs, and the plurality of circumferential ribs are arranged along the circumference of the inner sleeve; a cooling liquid channel is formed between each adjacent two circumferential ribs, and each of the plurality of cooling liquid channels has a water inlet end and a water outlet end. The application solves the problem of poor cooling efficiency of the motor controller and the motor of the vehicle, which causes excessive waste of stored electric energy and leads to the decrease of the vehicle's cruising range.
Owner:XPT EDS (HEFEI) CO LTD

An absorbent device for an activity check test and a system thereof

ActiveCN224585637UAchieve continuous usestable concentration
The utility model relates to an absorption device and system for activity test, and the absorption device for activity test includes: absorption device body for being connected with activity test device, absorption device body includes at least two groups of absorption unit, and the adjacent two groups of absorption units are provided with the baffle, one end of baffle is connected with the top of absorption unit, and the other end has the clearance with the bottom of absorption unit, and the adjacent two groups of absorption units are communicated through the clearance, and the gas control part is provided on every absorption unit, and the gas control part is used for controlling the gas inlet and outlet of sulfur dioxide, the utility model discloses can effectively utilize the dilute sulfuric acid produced by drying and the fuming sulfuric acid produced by absorption, realizes the sustained use of sulfuric acid, reduces the dangerous waste production, sulfuric acid is strong acid material, and there is danger, and the absorption device for activity test provided by the utility model embodiment need not frequently replace sulfuric acid, reduces the personnel operation, reduces the potential safety hazard.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Chip design reorganization system based on display interface

ActiveCN117272428BQuite technologically progressiveQuite practicalGeometric CADCAD circuit designComputer hardwareComputer architecture
The present application relates to a chip design reorganization system based on a display interface, which is applied to the reorganization process of chip logic interconnection to physical interconnection, the system constructs chip logic interconnection relationship based on interface description reconfiguration library and logic interconnection database, then further constructs physical interconnection database, displays physical layout diagram on the display interface based on the physical database, the physical layout diagram includes K1 group display areas, K2 atomic unit display areas, K3 buses, each atomic unit display area is located in the corresponding group area, the ith bus is arranged between the atomic unit display area of A ib and the atomic unit display area of B ib . The present application can display based on the display interface and can visually adjust physical reorganization and delay adjustment, improves the efficiency of physical reorganization and delay adjustment, thereby improves the efficiency of chip design.
Owner:沐曦科技(成都)有限公司

Cooperative control method for card sliver nep impurities of carding machine

The invention discloses a cooperative control method for card sliver nep impurities of a carding machine. Optimal control is achieved through linkage of three stages of source prevention, process cooperation and dynamic feedback. In the first stage, refined cotton grabbing is carried out in the opening and picking process, the weight of cotton bundles is 20-30 mg / block, and the impurity removal efficiency of a single-axial-flow cotton opener is 25%-35%; in the second stage, a licker-in and cover plate grading impurity removal system is constructed in the carding machine, the licker-in impurity removal efficiency ranges from 50% to 60%, the cover plate impurity removal efficiency ranges from 3% to 10%, the cylinder-cover plate gauge is gradually reduced from 0.25 mm to 0.15 mm, the workshop relative humidity ranges from 55% to 60%, and matched card clothing is cooperatively combined; and in the third stage, a quality sensor monitors in real time and feeds back to the central controller, and process parameters are dynamically and finely adjusted to form a closed loop. According to the method, the impurity content of card slivers is lower than 0.08%, the short fiber growth rate is lower than 3%, the total amount of nep impurities is reduced by 20% or above, the yield is increased by 2%-3%, and the adaptability of high-impurity-content raw materials is remarkably enhanced.
Owner:TUMUSHUKE CITY EAST LAKE XING TEXTILE CO LTD

Production process and application of low-twist high-strength woven yarn

PendingCN121951757ABreaking through the technical bottleneck of "low twist requires low strength"Reduced kinksContinuous wound-up machinesWoven fabricsFiberPolymer science
The invention relates to a production process and application of low-twist high-strength woven yarn, and belongs to the field of textile engineering. According to the technology, a multi-stage false twisting device is arranged between a front roller and a yarn guide hook of a traditional ring spinning frame, and by controlling the contact angle between a false twister and yarn, the false twisting speed ratio and tension distribution, the strength of the single yarn is remarkably improved under the low-twist condition (the twist coefficient is reduced by 20%-35% compared with the conventional twist coefficient). The double-zone control technology of front false twisting and rear tension balance is adopted, the dynamic strength of a spinning triangular zone is enhanced by more than 30%, and meanwhile, a yarn internal structure with a non-coaxial special-shaped spiral structure is formed by optimizing a fiber transfer path. The breaking strength of the obtained woven yarn reaches 95% or above of that of conventional ring spun yarn of the same specification, the residual torque is reduced by 40%-60%, the method is suitable for weaving of warp yarn and weft yarn of high-density woven fabric, and the technical problems that low-twist yarn is prone to breaking and uneven in cloth cover in the weaving process can be solved.
Owner:XINJIANG JIATAI NEW MATERIALS CO LTD

High-efficiency continuous separation and purification device and process for crude adipic acid process

PendingCN122499544AWidely used valueincrease profit
The application discloses a kind of high-efficiency continuous separation and purification device and process of crude adipic acid process, belong to chemical separation technical field.The process aims at solving the problems of low efficiency, discontinuity, high moisture content of product, impurities, large wastewater discharge and other problems existing in traditional segmented separation process.The core of this process is to use a set of sedimentation, filtration, washing function in one of the sedimentation filter centrifuge, and the crude adipic acid slurry is continuously and integrally processed, and low-moisture, low-impurity filter cake is directly obtained.Meanwhile, the separated mother liquor and washing water are innovatively introduced into a monobasic acid removal tower in parallel, and after removing impurities such as monobasic acid, the purified liquid is returned to the system for recycling.The application realizes the great simplification of process flow, the continuous automation of production process, the significant improvement of product quality and the internal circulation of resources, and is especially suitable for large-scale industrial application of adipic acid production.
Owner:HENAN SHENMA NYLON CHEM CO LTD

Ga2O3 as the light absorption layer npn-type solar-blind ultraviolet detector and its preparation method

PendingCN122094198AWidely used valuehigh absorption coefficientUltraviolet lightsUltraviolet absorption
This invention relates to an npn-type solar-blind ultraviolet detector using Ga2O3 as the light-absorbing layer and its fabrication method. The detector, from bottom to top, comprises a GaN substrate, a CuI hole transport layer, a Ga2O3 solar-blind ultraviolet absorption layer, a Ti electrode layer, and an Au electrode layer. An In electrode layer is disposed on one side of the CuI hole transport layer on the GaN substrate. This invention uses n-GaN, which has high electron mobility, good thermal stability, and a mature fabrication process, as the bottom substrate; p-CuI, with high hole concentration, high mobility, and excellent p-type conductivity, and good energy level matching with n-GaN and subsequent materials, as the hole transport layer; and n-Ga2O3, with an ultrawide bandgap, high chemical stability, and a high absorption coefficient for solar-blind ultraviolet light, as the light-absorbing layer. Combining the low contact resistance of the bottom In electrode with the high contact area of ​​the top Ti / Au interdigitated electrode improves carrier collection efficiency.
Owner:HENAN UNIV OF SCI & TECH

Quick plug structure and plug

The application relates to a quick plug-in structure and a plug, which comprises a plug and a socket, the plug shell has a pin mounting hole and a pin contact, the socket shell has a socket mounting hole and a socket; the pin contact comprises a front-end pin capable of axially reciprocating relative to the plug shell, the tail of the front-end pin is further connected with an elastic member; the front-end pin is further provided with a moving part capable of reciprocating along the radial direction of the front-end pin; when the socket is combined, the end face of the socket mounting hole stops and limits the moving part, and the elastic member is compressed; when the moving part is radially extruded and enters the release groove on the side wall of the socket mounting hole, and the front-end pin is axially moved and quickly combined under the pushing of the elastic member; when the socket is separated, the front end of the release groove stops and limits the moving part, the elastic member is stretched, the sliding part keeps contact with the socket; the moving part is separated from the release groove under the radial extrusion, and the front-end pin is quickly separated from the socket. The application shortens the plug-in time and weakens the burning influence of the electric arc.
Owner:AVIC OPTOELECTRONICS (GUANGDONG) CO LTD

A reaction process for synthesizing cyclohexyl acetate by esterification of cyclohexene with acetic acid

PendingCN122277394AWidely used valueEasy to processAcetic acidPtru catalyst
This invention discloses a reaction process for synthesizing cyclohexene acetate by esterification of cyclohexene and acetic acid. The process comprises a two-stage synthesis of cyclohexene acetate from cyclohexene and acetic acid via a moving bed pre-reaction and catalytic reactive distillation. In this two-stage process, the pre-reactor and the catalytic reactive distillation column are filled with the same macroporous resin solid acid catalyst, simplifying catalyst processing, use, and waste catalyst disposal. Furthermore, the pre-reactor utilizes a moving bed reactor, allowing for flexible adjustment of the raw material processing load and product yield within a certain range while ensuring the quality of the cyclohexene acetate product. It is also applicable to a wider range of cyclohexene content in the reaction feedstock; thus, this process offers the advantages of a wide applicable range of cyclohexene content in the feedstock and a broad range of adjustable processing loads.
Owner:HENAN SHENMA NYLON CHEM CO LTD

Modular assembly type closed air cooling machine cabinet

ActiveCN224383643UWidely used valueEasy to installDigital data processing details
This utility model relates to a modular, enclosed, air-cooled chassis, comprising a fan unit, a heat sink, and a functional unit. The fan unit includes a fan unit housing and a cover plate. The fan unit housing houses a power module, a cooling fan, and a circuit board. The heat sink includes a structural frame and a heat dissipation structure. The functional unit includes a functional unit housing, within which a functional circuit board is housed. The functional circuit board contains functional devices and an internal adapter connector, which also connects to an external interface connector located on the functional unit housing. The fan unit housing and the functional unit housing are detachably mounted on opposite sides of the structural frame. At least one side of the structural frame, distributed circumferentially, has an air inlet, and the cover plate has an air outlet. This utility model employs a modular assembly structure, facilitating installation and disassembly. It allows for independent maintenance of the fan unit and functional unit without requiring complete disassembly, simplifying maintenance operations and shortening maintenance time.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

A polyvinyl chloride electromagnetic shielding foam material and a method for preparing the same

The present application relates to the technical field of polyvinyl chloride foam material preparation, and particularly relates to a polyvinyl chloride electromagnetic shielding foam material and a preparation method thereof, wherein polyvinyl chloride resin, diisooctyl phthalate, magnesium hydroxide, copper-plated Mxene, light calcium carbonate, a heat stabilizer, a light-proof agent and a lubricant are uniformly mixed according to a certain weight ratio, and then are mixed by using a high-temperature mixing machine, and then are subjected to mold pressing to obtain a PVC composite material forming sample; the PVC composite material forming sample is added into a barrel of a conical twin-screw extruder, is subjected to extrusion forming, is subjected to pre-stretching, and then is subjected to foaming treatment to obtain the polyvinyl chloride electromagnetic shielding foam material. After the pre-stretching process, the polyvinyl chloride electromagnetic shielding foam material is obtained, the cell morphology in the polyvinyl chloride electromagnetic shielding foam material has a certain orientation along the stretching direction, the cell size is large, the specific surface area of the cells is increased, and the electromagnetic shielding performance of the material is improved.
Owner:LUOYANG INST OF SCI & TECH +1

Copper sulfate wastewater treatment system

The utility model relates to a copper sulfate wastewater treatment system, which comprises three stages of reaction kettles, the three stages of reaction kettles comprise at least three stages of gradient reaction kettles, the first gradient reaction kettle is a spiral guide plate, the second gradient reaction kettle is provided with a PH value detection module, and the PH value detection module is used for adjusting the injection rate of a catalyst according to the real-time PH value; the third gradient reaction kettle is provided with a PTFE (Polytetrafluoroethylene) composite membrane with gradient change aperture, and the first gradient reaction kettle, the second gradient reaction kettle and the third gradient reaction kettle are sequentially arranged from top to bottom along the reaction kettle; the double-pressure distillation tower is connected with the third-stage reaction kettle, the double-pressure distillation tower comprises a first pressure area and a second pressure area which are communicated with each other, and the pressure of the first pressure area is greater than that of the second pressure area; the centrifugal unit is connected with the double-pressure distillation tower, a diversion trench is arranged at an outlet of the centrifugal unit, and an electro-adsorption module is arranged in the diversion trench and used for adsorbing residual cationic polyacrylamide.
Owner:JIAOZUO GROUNDING GAS CHEMICAL TECHNOLOGY CO LTD

Porous wall-shaped tin sulfide micron material and preparation method thereof

PendingCN121948530AWidely used valueAvoid removing sexTin compoundsNanotechnologyMethyl groupMethylene blue
The invention belongs to the technical field of functional material preparation, and particularly relates to a porous wall-shaped tin sulfide micron material and a preparation method thereof.The preparation method comprises the steps that a tin source precursor is added into an alcohol solvent to be stirred at the room temperature, then a sulfur source is added, stirring continues to be conducted at the room temperature to be evenly mixed, the obtained precursor mixed solution is subjected to a hydrothermal reaction at the temperature of 120-180 DEG C, and the porous wall-shaped tin sulfide micron material is obtained. And carrying out centrifugal washing and vacuum drying on the product after reaction and cooling to obtain the product. The single-component porous wall-shaped tin sulfide micron material prepared by the method has the characteristics of high specific surface area, rich surface active sites, adjustable mass transfer channels and the like due to the unique porous wall-shaped structure, has efficient catalytic degradation performance on methylene blue, and has important research value in the field of porous materials.
Owner:HENAN UNIV OF SCI & TECH

A method for preparing and applying a cobalt-deficient cobalt selenide-anchored high-loading Pt single-atom catalyst

This invention relates to a method for preparing and applying a cobalt-deficient cobalt selenide-anchored high-loading Pt single-atom catalyst. Selenium powder is mixed with sodium hydroxide solution to obtain material A. Cobalt salt is mixed with EDTA-2Na solution to obtain material B. Material B and material A are mixed and subjected to a hydrothermal reaction. The resulting product is centrifuged, dried, and dispersed in anhydrous ethanol. Potassium thiocyanate powder is then added, and the mixture is ultrasonically exfoliated, centrifuged, washed, dried, and calcined to obtain Co-deficient cobalt selenide. This cobalt selenide is uniformly dispersed in an ammonium hydroxide aqueous solution. Under alkaline conditions, an ammonia solution containing tetraammineplatinum nitrate is added, and the reaction is carried out at room temperature for 24 hours. After centrifugation, washing, drying, and calcination, the desired product is obtained. This invention provides a simple preparation method that enables rapid and low-cost preparation of Co-deficient cobalt selenide under mild conditions. The Co-deficient cobalt selenide can anchor high-loading Pt single atoms, improving the stability of the Pt single atoms and thus enhancing the catalytic activity and selectivity of the catalyst for oxygen reduction to H₂O₂.
Owner:BEIJING HYDRO ENERGY TECH CO LTD +1

Ring structure temperature compensated contact

The utility model relates to a kind of ring structure temperature compensation contact, it includes the insertion hole extending along the axial direction, the insertion hole front end is used to the contact hole side of the insertion needle of suitable end insertion and is equipped with split groove, the split groove extends along the axial direction of insertion hole and is connected with the inside and outside of contact hole, the outer periphery of the contact hole front end is equipped with ring groove, the ring piece of positioning assembly in the ring groove can provide the contact hole with the elastic force of its clamping suitable insertion needle.The insertion hole of the ring structure temperature compensation contact of the utility model is set with split groove on one side, so that it has radial deformation ability, it can be opened when suitable insertion needle is inserted, and the ring piece is provided outside the insertion hole, the radial holding force is provided for the insertion hole by the ring piece, so as to ensure the reliable contact of insertion needle and insertion hole.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

Intelligent precise water and fertilizer drip irrigation regulation and control method for cotton in saline-alkali soil

The invention relates to an intelligent water and fertilizer precise drip irrigation regulation and control method for cotton in saline-alkali soil, and belongs to the technical field of precise agriculture. According to the method, accurate regulation and control of the whole growth cycle of the cotton are achieved through three-in-one technology integration of accurate seedling erecting and population construction, water and fertilizer integrated collaborative management and informatization intelligent decision making. The core technology comprises wide-narrow row precision seeding and density optimization configuration based on soil fertility difference, a dynamic fertilization strategy of'front control, middle promotion and rear supplement ', intelligent drip irrigation control based on soil moisture content and a crop water demand model, and a growth and development monitoring and decision support system based on multi-source information fusion (unmanned aerial vehicle remote sensing and ground Internet of Things). According to the method, the problems of low water and fertilizer utilization rate, unreasonable group structure and management link splitting in traditional cotton field management are solved, water can be saved by 30%-40%, fertilizer can be saved by 20%-30%, the boll forming rate can be increased by 15% or above, the fiber quality is remarkably improved, and economic benefits and ecological benefits are in synergistic interaction.
Owner:KASHGAR JINSHA MANOR AGRICULTURAL SERVICE CO LTD

A method for rapidly preparing hafnium oxide ceramic fibers

The application belongs to the technical field of ceramic material preparation, and specifically relates to a method for rapidly preparing hafnium oxide ceramic fibers, which comprises the following steps: dissolving hafnium-containing organic precursors in an organic solvent, preparing organic precursor fibers through an electrostatic spinning process, performing solidification treatment on the organic precursor fibers, placing the organic precursor fibers in a reaction chamber of a microwave plasma device, introducing treatment gas, applying microwave power, performing plasma treatment on the organic precursor fibers to convert the organic precursor fibers into hafnium oxide ceramic fibers, turning off the microwave source after the treatment is completed, naturally cooling the obtained product to room temperature, and obtaining hafnium oxide ceramic fibers. The hafnium oxide ceramic fibers prepared by the method are prepared by using microwave-excited plasma, have excellent toughness and elasticity, and are not prone to brittle fracture when subjected to bending or tensile stress. The process flow of the method is short, and the energy consumption is low, so that the method provides a new technical path for the rapid preparation of high-performance hafnium oxide ceramic fibers.
Owner:LUOYANG IND TECHNOLOGY RESEARCH INSTITUTE OF ZHENGZHOU UNIVERSITY

Fulvic acid potassium-containing diamine fertilizer as well as preparation method and application thereof

The invention relates to fulvic acid potassium-containing diamine fertilizer as well as a preparation method and application thereof. The fulvic acid potassium-containing diamine fertilizer comprises the following components in parts by weight: 175-200 parts of urea; 600 to 640 parts by weight of monoammonium phosphate; 50-70 parts by weight of ammonium sulfate; 110 to 140 parts by weight of potassium sulfate; 5 to 10 parts by weight of fulvic acid; medium trace elements: 4.5 to 8.5 parts by weight; and 5.25-16.2 parts by weight of trace elements, wherein the trace elements comprise zinc, boron, iron, copper, manganese, chlorine and molybdenum. A thiourea process is adopted, and the product is slightly acidic and is more suitable for the land of Xinjiang. The product adopts a urea formaldehyde process and has a sustained and controlled release effect. The product is of a potassium sulfate type and is suitable for any crops. In addition to macroelements of nitrogen, phosphorus and potassium, fulvic acid is added, so that a better stress resistance effect can be achieved, the nutrition is more balanced, and the absorptivity is higher.
Owner:XINJIANG GUITIANHUA ECOLOGICAL AGRI CO LTD

Preparation method of copper powder with adjustable particle size

ActiveCN116604012BWidely used valueGood dispersionGlycerolReaction temperature
The application relates to a preparation method of copper powder with adjustable particle size, a certain amount of copper sulfate and functionalized ionic liquid are weighed and added into a certain volume of solvent I, stirring and dissolving to obtain solution A; a certain amount of a reducing agent is weighed and added into a certain volume of solvent II, stirring and dissolving to obtain solution B; solution A and solution B are mixed and stirred at a temperature of 70-90 DEG C for 2h; then centrifugal separation, washing and vacuum drying are carried out to obtain copper powder; the solvent I and the solvent II are the same and can be selected from one or more of distilled water, ethylene glycol, propylene glycol and glycerol. The application has the advantages of simple process, green environmental protection and easy amplification; the carboxyl functionalized ionic liquid is adopted, the oxidation resistance of the copper powder is improved; the particle size of the copper powder can be adjusted within 200nm to 5.2mu m by changing the type, concentration and reaction temperature of the ionic liquid, the prepared copper powder has uniform particle size distribution, good dispersity, high crystallinity, good conductivity and good oxidation resistance.
Owner:HENAN UNIV OF SCI & TECH

A multi-wire cutting angle reference measuring fixture and measuring method

This invention relates to a multi-line cutting angle reference measuring fixture and method. Two sets of glass blocks of the same size are symmetrically adhered to a material plate reference surface, parallel to the plate's surface. The horizontal distance between the center points of the two sets of glass blocks along their length is 170mm. The two sets of glass blocks are cut using a normal quartz wafer cutting process. Afterwards, the material plate, the glass cut surfaces, and the testing fixture are cleaned. The material plate is then placed on the base plate of the testing fixture, with the material plate reference surface tightly fitted to the testing fixture reference strip. The dial indicator pointer touches the midpoint A of the upper and lower cut surfaces of the first set of glass blocks. The zeroing button is pressed, and the dial indicator displays 0.000mm. The dial indicator pointer then touches the midpoint B of the upper and lower cut surfaces of the second set of glass blocks, and the dial indicator reading D is recorded. B According to the formula M=D B / 0.04946 Calculates the angle adjustment range. This invention uses a glass block instead of quartz rod cutting for angle reference measurement, which greatly saves cutting time and cost, while also reducing process steps and improving testing efficiency.
Owner:BEIJING CRYSTAL PHOTOELECTRIC SCI & TECH INC