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Drilling grabbing shovel type combined sampler device for planetoid detection and use method of drilling grabbing shovel type combined sampler device
The invention discloses a drilling grabbing shovel type combined sampler device for planetoid detection and a use method of the drilling grabbing shovel type combined sampler device. The device comprises a feeding mechanism, a drilling mechanism, a grabbing shovel mechanism and a mounting plate. The use method comprises the following steps of (1) resetting a motor; (2) checking the motor; (3) performing sampling by a grabbing shovel motor; (4) detecting a shovel; (5) rotating a drilling rod to downwards move; (6) checking the drilling rod; (7) lifting the drilling rod; (8) checking the drilling rod; (9) performing sampling; (10) checking a sampling pipe; (11) enabling the drilling mechanism to upwards move; (12) checking a micro switch contact; (13) stopping a feeding motor; (14) checking a sampler; (15) arranging samples; (16) checking the shovel; (17) arranging the samples; (18) checking the sampling pipe; and (19) performing resetting. According to the drilling grabbing shovel type combined sampler device for planetoid detection and the use method of the drilling grabbing shovel type combined sampler device, sample collection can be realized on the surface of a planetoid, and deep sampling can be executed; bedding information of the samples can be kept; the device has the advantages of large sampling amount, various sample types, retention of original appearances of the samples and the like.
Owner:BEIHANG UNIV
Broadband radar target simulation method and system
InactiveCN111183741BMeet the requirements of far-field testingImplement full functional testingWave based measurement systemsDigital dataWideband radar
The present invention relates to a broadband radar target simulation method and system, characterized in that: the received radar radiation signal enters the broadband down-converter of the simulation system through an attenuator and a low-noise amplifier to perform conversion from radio frequency to intermediate frequency, and the down-conversion output IF 70MHz band-pass signal, 70MHz IF modulation signal is low-pass filtered and then band-pass samples the input analog modulation signal, and the output digital data is digitally down-converted in the FPGA, demodulated to the digital baseband signal and delayed; the delayed The data is output to the IQ data processing circuit of the FPGA, and finally the target simulation in the microwave frequency band is radiated to the radar through the signal output by the DAC. The invention adopts space coherent reception, which can fully meet the requirements of radar far-field testing.
Owner:CNGC INST NO 206 OF CHINA ARMS IND GRP
Inferior land green vegetation ecological reconstruction system
ActiveCN104255108AEcologically goodThe renovation plan is reasonableWatering devicesDirect liquid fertiliser deliveryWater storageAlkali soil
An inferior land green vegetation ecological reconstruction system comprises a water storage pond, an organic nutrient solution pond, a water supply and discharge pipe network, a soil fertility improving pipe network and a tree variety transplantation protection device; the tree variety transplantation protection device is arranged inside grids of the water supply and discharging pipe network; nodes of the soil fertility improving pipe network are arranged inside grids of the water supply and discharging pipe network. The inferior land green vegetation ecological reconstruction system has the advantages of being reasonable in structure and reliable in performance and achieving water resource recycling due to recycle washing of the saline-alkali soil through water feeding and discharging of the system, overcoming disadvantages of other discharging pipes, improving the soil, reducing salt and alkali performance and being outstanding in zoology vegetation construction of salt and alkali areas and large in market capacity, wide in prospect and having great market and social values.
Owner:湖北天蓝地绿生态科技股份有限公司
Microwave darkroom test system based on wireless control and wireless control method
InactiveCN105353241ALow costSolve five-dimensional motion problemsElectrical testingDarkroom testSerial port
The invention relates to a microwave darkroom test system based on wireless control and a wireless control method. A host computer communicates with an emission radio station via a 485 serial port, motion control instructions of axial motors are transmitted to an emission antenna reception radio station, a three-axis holder reception radio station and a reception radio station of a reception antenna scanning rack via a radio station, and the emission antenna reception radio station, the three-axis holder reception radio station and the reception radio station of the reception antenna scanning rack convert the control instructions into a system five-dimensional motion control instruction via decoders, and controls motion of the motors via encoders of themselves. Five-dimension, including horizontal, vertical, oriented, pitching and polarized, movement of the reception antenna as well as the polarized movement of the emission antenna can be completed, and requirements for microwave darkroom test can be met.
Owner:CNGC INST NO 206 OF CHINA ARMS IND GRP
Shelf satellite borne transponder
The invention discloses a shelf satellite borne transponder. The shelf satellite borne transponder comprises a radio frequency transceiver module, an intermediate frequency processing module, a secondary power supply module, a duplexer, a relay receiving filter; wherein the radio frequency transceiver module is used for receiving and transmitting radio frequency signals to the ground or to the relay; the intermediate frequency processing module is used for the A / D conversion of received signals, the D / A conversion of reference signals, the acquisition and tracking of pseudo codes and carriers,and the signal processing of channels; the secondary power supply module is used for power supply filter, voltage conversion and transponder switch execution; the diplexer is used for the filtering processing of ground measurement and control radio frequency receiving signals and radio frequency transmitting signals; and the relay receiving filter is used for preselected filtering of relay measurement and control radio frequency receiving signals. According to the shelf satellite borne transponder disclosed by the invention, a unified hardware platform is adopted; and the purposes of general-purpose design, mass production without considering the models and shelf supply can be achieved through changing different software settings and replacing the diplexer and relay receiving filter withdifferent frequency points.
Owner:SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
Ultra wide wave band near-infrared electromagnetic wave absorber
InactiveCN102928898AEasy to processLow costOptical elementsElectromagnetic wave absorberElectromagnetic electron wave
The invention discloses an ultra wide wave band near-infrared electromagnetic wave absorber which comprises a substrate, a first metal film, a second metal film and monolayer medium ball arrays. The first metal film is deposited on the substrate with the thickness of more than 100 nanometers and the monolayer medium ball arrays of different sizes and / or different materials are mixed and arranged on the first metal film. The second metal film is deposited on the monolayer medium ball arrays. The ultra wide wave band near-infrared electromagnetic wave absorber has a perfect absorption effect on ultra wide wave band near-infrared electromagnetic waves of large incidence and is not sensitive to polarization of the near-infrared electromagnetic waves. The ultra wide wave band near-infrared electromagnetic wave absorber has the advantages of being simple in craft, low in cost, high in repetition and capable of mass production and being possessed with wide application prospect in fields such as electromagnetic probing, absorbing and transforming.
Owner:NANJING UNIV
Multifunctional fancy yarn and spinning method thereof
InactiveCN101377033AGood hygroscopicity and wearing comfortAvoid easy pilling and snaggingAdhesivesYarnPolyesterYarn
The invention relates to multi-functional fancy yarn and a spinning method thereof; the fancy yarn comprises core yarn, decorative yarn and fixed yarn; the core yarn is polyester fiber with infrared functional nano powder, the decorative yarn is polyester fiber with nano bamboo charcoal, and the fixed yarn is viscose fiber with pearl nano powder. The spinning steps of the fancy yarn are as follows: (1) the raw material fiber of the core yarn, the decorative yarn and the fixed yarn are respectively processed into roved yarn; (2) the roved yarn of the decorative yarn and the fixed yarn are fed on a special spinning machine at the same time to prepare bobbin yarn after drafting, twisting and packaging by roved yarn blending, and prepare into cone yarn 1 through a winding procedure; (3) the roved yarn of the core yarn is separately spun into spun yarn in the spinning machine, and prepared into cone yarn 2; (4) the cone yarn 1 and the cone yarn 2 are fasciated together to prepare the fancy yarn, and the fasciating method is adjusted according to product purposes to obtain fancy yarn in different types.
Owner:江阴市茂达棉纺厂有限公司
Roadbed settlement monitoring device based on fiber Bragg grating
InactiveCN110631549ALarge measuring rangeImprove monitoring accuracyUsing optical meansHydrostatic levellingFiberGrating
The invention discloses a roadbed settlement monitoring device based on a fiber Bragg grating. The roadbed settlement monitoring device based on the fiber Bragg grating comprises at least two fiber Bragg grating liquid level sensors mounted on a monitoring surface; each fiber Bragg grating liquid level sensor comprises a cylindrical shell, and the bottom of each shell is mounted on a base; a rectangular cantilever beam, a cylindrical floating block and antifreezing solution are arranged inside each shell; the upper side and the lower side of each rectangular cantilever beam are respectively embedded into a fiber Bragg grating sensor, each floating block is suspended in the corresponding antifreezing solution, and each floating block is hinged with the free end of the corresponding rectangular cantilever beam; and the fiber Bragg grating sensors are welded and in serial connection with an optical cable, the optical cable is connected with a fiber Bragg grating demodulation instrument, strains of the rectangular cantilever beams when liquid levels in the shells are changed are acquired by virtue of the fiber Bragg grating demoulation instrument, adjacent upper sections of the shellsof the fiber Bragg grating liquid level sensors are communicated via a breather pipe, adjacent lower sections of the shells of the fiber Bragg grating liquid level sensors are communicated via a liquid flowing-through pipe, so as to enable the rectangular cantilever beams to produce bending deformation, and the liquid flowing-through pipe is connected with an automatic liquid level controller.
Owner:广州万构建造数字技术有限公司
Dual-band micro-strip grid array antenna
InactiveCN109462038AReduce physical sizeWith integrationParticular array feeding systemsSimultaneous aerial operationsDielectric substrateGround plane
The invention provides a dual-band micro-strip grid array antenna. The antenna comprises an antenna radiation body, a dielectric substrate and a ground plane; the radiation body is arranged on the upper surface of the dielectric substrate in parallel; and the ground plane is arranged on the lower surface of the dielectric substrate in parallel. On the basis of an original grid array antenna, the position of a feed point is changed, and two working modes can be stimulated, so that dual bands are realize; and the radiation body of the antenna also has the advantages of being small in physical size, integrated and the like.
Owner:SHANGHAI JIAO TONG UNIV
A drilling and grabbing shovel compound sampler device for asteroid exploration and its application method
ActiveCN104034557BGreat research valueA large amountWithdrawing sample devicesElectric machineryEngineering
Owner:BEIHANG UNIV
Pedicel removing and slicing machine for kiwifruit
InactiveCN106903741ASimple structureReduce volumeMetal working apparatusFood treatmentActinidiaBiochemical engineering
The invention relates to a pedicel removing and slicing machine for kiwifruit. The pedicel removing and slicing machine comprises a rack, wherein a rotary fixing seat, a compaction device, a slicing device and a pedicel removing device are arranged on the rack; the rotary fixing seat is arranged at the lower part of the rack, and comprises a pin group and a motor; the pin group is vertically arranged on an output shaft of the motor; the compaction device is arranged at the upper part of the rack, and comprises a compaction air cylinder and a compaction column; the compaction column is arranged right above the pin group; the slicing device is arranged on the side part of the rack, and comprises a slicing air cylinder and a knife blade group; the knife blade group is arranged on one side of the compaction column; the pedicel removing device is arranged at the bottom of the rack, and comprises a pedicel removing air cylinder and a pedicel removing knife; and the pedicel removing knife is arranged below the pin group. The pedicel removing and slicing machine provided by the invention is simple in structure, small in size and low in manufacturing cost, has the advantages that the degree of integration and the degree of automaton are high, and can further be applied to the processing operation on other fruits; when the pedicel removing and slicing machine is applied to the processing of fruit preserves, the processing cost of the fruit preserves can be greatly reduced; and both the production speed and the processing efficiency are high.
Owner:XIAN TECHNOLOGICAL UNIV
Intelligent assembly detection workbench trolley and use method thereof
PendingCN109732553AReduce labor intensityAchieve integrationWork tools storageOther workshop equipmentProduction lineDisplay device
The invention discloses an intelligent assembly detection workbench trolley. The intelligent assembly detection workbench trolley comprises a stored program control module, an induction module, a datatransmission module, an indication module, a power supply module and a workbench trolley body. According to the intelligent assembly detection workbench trolley and a use method thereof, a vehicle-mounted bamboo joint lamp is controlled by an industrial control computer and a programmable relay controller to detect the running state of a production line and display whether the detection results are correct or not, LED indication lamps on drawers are controlled and illumed by the programmable relay controller to guide users to select corresponding intelligent tools, data interaction with the intelligent tools related within the project range is realized through the intelligent tool data transmission module, each vehicle-mounted intelligent tool is fixedly provided with an RFID electronic label, and when the tools are taken away from a tool trolley, the induction module can automatically detect the picked-up equipment information and display the results on a displayer. By means of the intelligent assembly detection workbench trolley and the use method thereof, station standardized management can be realized in coordination with a station metronomic production mode, intelligent toolintegration is realized, data collection is finished automatically, human errors are avoided, quality item points are automatically detected, and the product quality is guaranteed.
Owner:南京华剑兵科工程技术有限公司
Method for preparing diamond vacuum window with self-supporting frame by virtue of mask method
InactiveCN106367727ACorrosion resistanceProtectiveChemical vapor deposition coatingDiaphragm valveImpurity
The invention relates to the field of diamond self-supporting windows. A method for preparing a diamond vacuum window with a self-supporting frame by virtue of a mask method is characterized by comprising the following steps: step 1, removing surface impurities through ultrasonic cleaning; step 2, placing a molybdenum sheet cleaned in the step 1 at the centre of a nano-diamond film to obtain a sample; and then placing the sample on a substrate table in a reaction cavity of a microwave plasma chemical vapour deposition device; step 3, charging hydrogen after a vacuum degree is lowered to a standard vacuum degree; step 4, turning on a microwave power supply, increasing a microwave power, closing a diaphragm valve after glow discharge is started in a reaction chamber, charging a carbon source gas, adjusting a power and a gas pressure, and stabilizing a plasma state; and step 5, corroding after the completion of deposition, so as to obtain the diamond vacuum window with the self-supporting frame. The method is capable of remarkably improving the capacity of adapting to environmental changes of the diamond self-supporting film, thus facilitating later-period welding of the diamond vacuum window with a metal flange.
Owner:WUHAN INSTITUTE OF TECHNOLOGY
Induction welding equipment and method for thermoplastic resin matrix composite with internal electromagnetic material
The invention provides induction welding equipment and method for a thermoplastic resin matrix composite with an internal electromagnetic material, belongs to the field of material forming and manufacturing and solves the problems about induction welding materials and equipment. Innovations are as follows: in terms of the material, a lamination forming process is adopted for producing the thermoplastic resin matrix composite, an iron-based ferromagnetic material is added in a lamination process, and a composite welding piece is formed; in terms of the welding equipment, the induction welding equipment is improved, axial application of pressure is realized, the distance with a joint is controlled as required, and efficient induction welding is realized. The welding method comprises the steps as follows: firstly, pre-pressure is applied to a to-be-welded composite by pressurizing equipment, then an induction coil is connected, and an electromagnetic field is produced to heat the internalelectromagnetic material. The induction welding equipment and method have the advantages that the requirement of induction welding for size of a to-be-welded object is reduced, welding quality and efficiency are improved, energy consumption is reduced, the welding equipment is simplified, and one-time investment of the equipment and production cost are reduced.
Owner:HARBIN INST OF TECH AT WEIHAI
Preparation method of film temperature sensor for liquid floated gyroscope
InactiveCN102607732AHigh dielectric strengthHigh coefficient of thermal expansionThermometers using electric/magnetic elementsUsing electrical meansIonMicro arc oxidation
The invention provides a preparation method of a film temperature sensor for a liquid floated gyroscope. The preparation method comprises the following steps of: machining an aluminums alloy circular ring; drying after carrying out mechanical polishing, oil removing, alkali washing, acid washing and de-ionized water cleaning; carrying out micro-arc oxidation in a mixed electrolyte of KOH and Na2SiO3 by using a micro-arc oxidation method, so as to obtain an Al-based Al2O3 test piece; mechanically polishing and ultrasonically cleaning the test piece in alcohol; preparing a Cu film by using a physical deposition method, so as to obtain an Al-based Al2O3 / Cu film test piece; carrying out thermal treatment in a vacuum condition; etching to obtain a copper wire strip with an assigned resistance value, the width of 20-100 microns and flat edges; welding a lead wire by using a thick film welding technology; and packaging by using silicon rubber so as to form an Al-Al2O3-Cu-Al2O3-Al film temperature sensor. The preparation method provided by the invention prepares the film temperature sensor for the liquid floated gyroscope with the characteristics of resistance of soaking fluorocarbon oil and bromine oil, miniaturization, integration, short response time and firm structure through key steps, such as a preparation technology of a high-insulating compact medium isolating layer, a controllable generation technology of a plasma closed field temperature sensitive Cu film, and a resistance strip etching technology. The preparation method of the aluminum base film temperature sensor formed by the preparation method provided by the invention can be applied to manufacturing other temperature sensitive elements.
Owner:HARBIN ENG UNIV
Device conducting composite manufacturing on basis of laser technology
PendingCN111992712AImprove mechanical propertiesImprove the finishAdditive manufacturing apparatusIncreasing energy efficiencyLaser technologyEngineering
The invention discloses a device conducting composite manufacturing on the basis of a laser technology. The device comprises a sealed forming chamber, an inert protective gas source and a machining forming platform. The inert protective gas source is connected with the sealed forming chamber. The machining forming platform is arranged in the sealed forming chamber, and a light path selection system is arranged over the machining forming platform. A machining station is arranged on the machining forming platform, and the machining forming platform is arranged on a guide rail and can slide forwards and backwards through the guide rail. The light path selection system comprises a shock reinforcing independent laser light path, an additive independent laser light path and a subtractive independent laser light path. The light paths are arranged in the direction of the guide rail, and all the independent laser light paths do not share equipment and are arranged over the machining forming platform. According to the device, the laser shock reinforcing technology and the laser additive and subtractive technology are integrated, the forming precision, the surface quality, the organization performance and the residual stress state of a complex fine additive workpiece are improved, and one-stop high-efficiency high-precision and high-performance additive workpiece preparation is achieved.
Owner:SHANGHAI UNIV OF ENG SCI
Mobile power distribution network intelligent integrated power supply vehicle
ActiveCN105470838AMeet job requirementsEasy to storeVehicular energy storageSwitchgearLow voltageTransformer
Owner:国网山东阳谷县供电公司
Anatomical locked hook plate with memory alloy
The invention relates to an anatomical locked hook plate with memory alloy. The anatomical locked hook plate comprises nail hooks with protruding near ends, a locking plate and a far end embracing device. The head of the hook plate is in a semiarc shape, and the long nail hooks of 0.5 cm are arranged on part of a protrusion (2), and can be directly fixed in the sclerotin. The near end of the hook plate is in a sector shape capable of completely embracing the greater trochanter, and five to seven locking screw holes and four to six conch type needle holes are formed. The far end embracing device is a memory alloy embracing device, semicircular fixed clamping rings are arranged in the far end embracing device, sharp protruding clamping grooves are formed in the clamping rings, and the hook plate can be closely combined with the sclerotin. A fixed shaft is arranged outside the far end embracing device and connected with the locking plate into a whole, locking holes are formed in the fixed shaft, and locking screws can be fixed when necessary. The anatomical locked hook plate with the memory alloy combines the advantages of the memory alloy embracing device, an anatomical steel plate, the locking steel plate and a tension belt, and has the advantages of being integrated, easy to operate, firm in fixing and the like.
Owner:王维山
Bypass device and network optical interface module comprising same
ActiveCN111147132AWith miniaturizationWith integrationFibre transmissionHigh concentrationOptical Module
The invention provides a bypass device and a network optical interface module comprising the same, the bypass device is used for the network optical interface module, and the network optical interfacemodule is provided with a plurality of external interfaces. The bypass device comprises: optical modules used for photoelectric conversion and electro-optical conversion and corresponding to the plurality of external interfaces; and an optical switch which is arranged between the plurality of optical modules and the plurality of external interfaces, is connected with the plurality of optical modules and the plurality of external interfaces through optical fibers, and is used for forming optical links among the different external interfaces. The external interfaces of the network optical interface module are respectively connected with the optical switch through the optical fibers; the bypass device is integrated in the network optical interface module, and the outer end of the network optical interface module only needs to be connected with an optical fiber, so that operation is convenient, the network optical interface module has the advantages of miniaturization, integration, high concentration and the like, and the compactness of the device and the convenience of assembly and production are improved.
Owner:HANGZHOU DPTECH TECH
Polymer suspension emulsion for fracturing fluid and preparation method thereof
PendingCN112175208APromote dissolutionGood salt resistanceDrilling compositionAmmonium sulfateMineral oil
The invention discloses a polymer suspension emulsion for fracturing fluid. The polymer suspension emulsion comprises the following components in parts by weight: 350-450 parts of mineral oil, 16-20 parts of a suspending agent, 350-550 parts of polymer powder, 70-80 parts of inorganic potassium salt, 75-100 parts of alkyl ether ammonium sulfate, 35-60 parts of a demulsifying agent and 10 parts ofa wetting agent. The preparation method of the suspension emulsion comprises the following steps: (1) adding mineral oil into a production kettle, and starting stirring at the stirring frequency of 25Hz; (2) sequentially adding the suspending agent, the polymer powder and the sylvite into a production kettle; (3) adjusting the stirring frequency to 35Hz, opening a circulating valve of the production kettle, starting a primary circulating pump, and circularly stirring the materials for 30min; and (4) adding alkyl ether ammonium sulfate, the demulsifying agent and the wetting agent, closing theprimary circulating pump, starting the secondary circulating pump, and continuously and circularly stirring for 30 minutes to obtain the polymer suspension emulsion for the fracturing fluid. The suspension emulsion prepared by the invention has the advantages of rapid dissolution, good salt resistance, good stability and low cost, and meets the technical requirements of continuous blending large-displacement hydraulic fracturing construction.
Owner:江西富诚生态环境科技集团有限公司
Standardized high-throughput three-dimensional cell preparation device and application thereof
InactiveCN109097274ASolve the problems of difficult standardization of preparation and inconvenient operationWith integrationMicrobiological testing/measurementTissue/virus culture apparatusCell preparationOrifice plate
The invention provides a standardized high-throughput three-dimensional cell preparation device and application thereof, especially for the construction of a three-dimensional cell model. According tothe provided standardized high-throughput three-dimensional cell preparation device, a concave structure is arranged on the bottom of a commercialized orifice plate, after cells are inoculated, due to the bottom concave structure, the cells are aggregated into a three-dimensional cell cluster, and the device can be used for the cultivation of three-dimensional cells, drug evaluation and other research. The three-dimensional cells prepared by the device are controllable in size and convenient to use, and can be standardized for subsequent operation. The standardized high-throughput three-dimensional cell preparation device and the application thereof solve the problem that the preparation of the three-dimensional cells cannot be combined with the orifice plate capable of being operated conveniently and quickly, the standardization and high throughput are not easy, and the detection cannot be carried out rapidly, and facilitate the follow-up study.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Lampblack flue gas purification treatment material
InactiveCN109589972AMultifunctionalWith integrationGas treatmentDispersed particle separationLow noiseUltrasound attenuation
The invention discloses a lampblack flue gas purification treatment material. The flue gas purification treatment material is mainly prepared from a carbon-based component, an inorganic mineral adhesion component, an inorganic adsorption component, a noble metal catalyst component, a non-noble metal catalyst component and an auxiliary agent, wherein the content of each raw material is as follows in percentage by mass: 60 to 90 percent of the carbon-based component, 10 to 40 percent of the inorganic mineral adhesion component, 3 to 10 percent of the inorganic adsorption component, 0.02 to 0.12percent of the noble metal catalyst component, 0.5 to 20 percent of the non-noble metal catalyst component and 0.6 to 2.5 percent of the auxiliary agent. All the components are prepared into the multifunctional, efficient, long-effect, integrated, high-strength and low-attenuation lampblack flue gas purification treatment material according to a certain preparation technology. The composite material can be used for carrying out efficient and rapid absorption and catalytic decomposition on multi-component VOCs (Volatile Organic Compounds) with different types in lampblack flue gas generated ina kitchen. Meanwhile, the flue gas purification treatment material has the characteristics of low cost, low air resistance, low noise, low energy consumption and the like, and the blank of a current market that the purification efficiency on the lampblack flue gas VOCs of the kitchen is low is filled up.
Owner:江苏瑞丰科技实业有限公司
Method for preparing bifunctional polyether-ether-ketone by combining mussel derived peptide with biological orthogonal reaction and application of bifunctional polyether-ether-ketone
ActiveCN113354786ASpecificImprove mechanical propertiesTissue regenerationBulk chemical productionPoly ether ether ketoneStaphyloccocus aureus
The invention discloses a method for preparing bifunctional polyether-ether-ketone by combining mussel derived peptide with biological orthogonal reaction and application of the bifunctional polyether-ether-ketone. The preparation method comprises the following steps: a, synthesizing clickable mussel derived peptide; b, modifying polyether-ether-ketone by the clickable mussel derived peptide; c, preparing the DBCO-AMP and the DBCO-OGP; and d, preparing the bifunctional polyether-ether-ketone. The preparation method is simple and convenient, the preparation cost is relatively low, the prepared bifunctional polyether-ether-ketone (PEEK-AO) is excellent in performance, and an in-vitro cell experiment proves that the PEEK-AO has the effects of promoting adhesion, proliferation and osteogenic differentiation of BMSCs (bone mesenchymal stem cells) and has antibacterial performance on staphylococcus aureus and escherichia coli; in-vivo experiments prove that PEEK-AO promotes implant-bone interface integration by utilizing a rat distal femur implant rod model, has antibacterial ability and has a relatively good clinical application prospect.
Owner:THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV
Three-phase power cable connector
InactiveCN1885639ASmooth and reliable plugging and unpluggingGuaranteed integrationCoupling contact membersTwo-part coupling devicesPower cableElectrical devices
The provided small three-phase cable connector comprises a main body with at least independent three column channels every pre-buried metal plug and a fit bolt as screw form and pawl top opening, wherein the outside wall of connector is flange segmental column-form. This invention has well voltage endurance feature, and fit to wide application.
Owner:广东长牛电气股份有限公司
Projection system
ActiveCN110737069AWith integrationShorten the projection distanceProjectorsOptical elementsTelephoto lensLong-focus lens
A projection system comprises the following parts of a telephoto lens capable of independent imaging with a focal length of 70mm to 300mm; a short focus lens capable of independent imaging with a focal length of 3mm to 8mm, wherein the short focus lens is provided with an optical axis with the telephoto lens; and at least one reflective element that changes the direction of the optical axis; thereby, when the telephoto lens forms an image, the short focus lens forms an image to a predetermined position.
Owner:SUN YANG OPTICS DEV CO LTD +1
Bifunctional polarizer based on vanadium dioxide and Dirac semimetal composite metasurface
The invention relates to the technical field of terahertz functional devices. The invention provides a bifunctional polarizer based on a vanadium dioxide and Dirac semimetal composite metasurface. Thebifunctional polarizer is formed by periodically arranging a plurality of device structure units, each device structure unit comprises a silicon dioxide layer and a vanadium dioxide layer from top tobottom, two Dirac semimetal U-shaped structures are arranged above the silicon dioxide layer, and a wire grid is arranged below the vanadium dioxide layer. According to the invention, a transmissiontype linear polarization conversion function and a reflection type linear polarization conversion function are integrated, and switching between the two polarization conversion functions is realized through phase change switching between a vanadium dioxide insulation state and a metal state. Compared with an existing polarization converter, the bifunctional polarizer provided by the invention performs function integration, and has the advantages of ultrahigh polarization efficiency, ultrahigh working bandwidth and dual-excitation regulation and control.
Owner:SHANDONG UNIV OF SCI & TECH
Modification method of graphite negative plate of lithium ion battery
PendingCN114005963AGuaranteed stabilityWith integrationNegative electrodesSecondary cellsLaser probeElectrical battery
The invention provides a method for modifying a graphite negative plate by laser etching for a lithium ion battery. The prepared graphite negative electrode plate which is not treated is placed under a laser probe, and laser parameters are adjusted. And under the condition that the overall structure of the graphite negative plate is not damaged, the surface of the graphite negative plate is subjected to laser etching, so that gullies and defects are formed, and a final product is obtained. The problems that in the prior art, traditional heat treatment, chemical etching, mechanical activation and other procedures are complex, the environment is polluted, and energy consumption is large are solved. The electrochemical performance of the graphite electrode after laser etching is remarkably improved, the graphite electrode shows the specific discharge capacity of 300-450 mAh / g under the current density of 50 mA / g, still has the capacity of 120-350 mA / g after 300 cycles under the current density of 1 A / g, and has high specific discharge capacity and good cycle stability. The method provides a simple, green and universal strategy for structural modification and performance improvement of the graphite negative plate.
Owner:BEIJING UNIV OF CHEM TECH
Internal electricity generation system for gas pipeline and automatic control method
ActiveCN105003306AWith integrationImprove recycling efficiencyBatteries circuit arrangementsMachines/enginesAutomatic controlEngineering
The invention relates to an internal electricity generation system for a gas pipeline. The internal electricity generation system comprises a branch pipeline connected with a main gas delivery pipeline, an electricity generation device detachably arranged on the branch pipeline, and a power output device connected with the power output end of the electricity generation device. The electricity generation device comprises a sectional tube type housing, an electric generator fixed in the housing and a flow guide hood arranged at the power input end of the electric generator. The flow guide hood is composed of an inner hood body and an outer hood body and is of a double-layered gathering type flow guide structure. A hollow-out baffle plate is arranged on the end face of an inlet of the flow guide hood and comprises multiple baffle plate sheets in central symmetry. Each baffle plate sheet is provided with two opposite inclined planes which are located in the inner hood body and the space between the inner hood body and the outer hood body respectively. By means of the flow guide hood of the internal electricity generation system for the gas pipeline, a fluid channel can be made smaller, pressure is increased, and kinetic energy recovery efficiency is improved.
Owner:BEIJING GAS GRP +1
Heat supply pipeline remote monitoring system
PendingCN111140689AWith integrationDigitizedOperating means/releasing devices for valvesPipeline systemsData displayAviation
The invention relates to the field of valves, in particular to a heat supply pipeline remote monitoring system. The heat supply pipeline remote monitoring system comprises a valve, sensors arranged ona pipeline and an upper computer, wherein an executing mechanism and an electric switch are arranged on the valve, the executing mechanism is connected to the upper computer in an RS485 / GPRS / LORA communication mode, sensor interfaces adopt pluggable aviation plugs, the sensors are connected to the upper computer in a wireless communication mode, broadband signal transformation is conducted by theupper computer through flux, the upper computer receives signals transmitted by an intelligent valve, and then transmits the processed signals to the intelligent valve, and the sensors comprise a temperature sensor, a differential pressure sensor and a flux sensor. According to the heat supply pipeline remote monitoring system, the fluid temperature is transmitted to the upper computer through the temperature sensor, data are displayed on a displayer of the upper computer, the upper computer uploads opening data and control temperature in a remote communication mode, and temperature control can be achieved by directly adjusting an electric switch key.
Owner:JIANGSU WELDV VALVE
Mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as preparation and application thereof
ActiveCN113462181AMildew-proofAnti-mildew, flame retardant and wear-resistantPolymer sciencePlant fibre
The invention provides a mildew-proof, flame-retardant and wear-resistant integrated odorless plant fiber reinforced thermoplastic polymer composite material as well as a preparation method and application thereof, and belongs to the technical field of automotive interior materials. Plant fibers are subjected to interface modification treatment, so that the interface compatibility of the plant fibers and a thermoplastic polymer is improved. The thermoplastic polymer is modified by using auxiliaries, so that the composite material has mildew-proof, flame-retardant, wear-resistant and odor-adsorbing properties, and meanwhile, the interface compatibility with the plant fibers is enhanced. The plant fiber reinforced thermoplastic polymer composite material prepared by the invention integrates mildew resistance, flame retardance, wear resistance and odorlessness, and can be used for automotive trim.
Owner:INT CENT FOR BAMBOO & RATTAN
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