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Environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants
ActiveCN103207268AInsulate the influenceAccurate measurementIndividual particle analysisFine particulateEngineering
The invention relates to the field of air quality monitoring, in particular to an environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants. The environmental simulation test box comprises a closable box body, a PM2.5 generator, a PM2.5 measuring device, a constant-temperature constant-humidity device, a lighting simulating device, a raining simulating device and a wind simulating device, wherein the PM2.5 generator and the PM2.5 measuring device are communicated with the box body, and the constant-temperature constant-humidity device, the lighting simulating device, the raining simulating device and the wind simulating device are disposed in the box body. By the structure, influences of natural environments can be isolated, environmental parameters can be simulated quantitatively, and accordingly PM2.5 absorbing capability of plants can be measured accurately, and scientific and effective basis is provided for quantifying PM2.5 absorbing capability of various plants and forest planting selection.
Owner:BEIJING FORESTRY UNIVERSITY
Double-cavity excitation enhanced microwave plasma torch generation device
PendingCN107087339AIncrease maximum powerStanding wave enhancementPlasma techniqueSurface modificationMicrowave plasma torch
The invention relates to a double-cavity excitation enhanced microwave plasma torch generation device, and belongs to the technical field of microwave plasma. The device comprises a microwave magnetron, a circulator, a directional coupler, a microwave plasma coupling waveguide, a cylindrical waveguide, an igniter and a discharge tube. After the microwave magnetron, the circulator and the directional coupler are sequentially connected in series, the directional coupler is connected with the microwave plasma coupling waveguide. The cylindrical waveguide chamber is additionally arranged in the axial direction of the discharge tube perpendicular to a compression rectangular waveguide; a thermal resistance waveguide in the microwave plasma coupling waveguide effectively isolates the influence of thermal release of plasma discharge on a whole system; the igniter makes the whole system operated by a single person to complete a series of processes of ignition, excitation and maintenance, and the ignition success rate is close to 100% under the condition that the no-load output of a microwave source is low. Plasma torch afterglow with a larger volume action area can be obtained by increasing the maximum power of a plasma torch, so that the device can operate stably and reliably for a long time, and can be used in various relevant fields such as combustion assistance, nano material synthesis, waste gas treatment and high-temperature-resistant material surface modification.
Owner:李容毅
Stable simvastatin oral tablet and preparation method thereof
InactiveCN102091050AEffective isolationGood film formingOrganic active ingredientsMetabolism disorderMedicineAntioxidant
The invention provides a stable simvastatin oral tablet which is prepared from the following components in percentage by weight: 10-20% of simvastatin, 0.01-0.04% of antioxidant, 0.5-2.0% of acidifier, 70-80% of filler, 5-10% of disintegrant, 1-1.2% of lubricant and 0.5-2% of binder. The invention also provides a method for preparing the stable simvastatin oral tablet. By strictly controlling the moisture of a finished product, the doses of the antioxidant and acidifier in the components are obviously reduced, the product stability is better, and the safety is higher.
Owner:CHONGQING KERUI PHARMA GRP
A charge pump circuit
InactiveCN101488710AIncrease resistanceInsulate the influencePulse automatic controlApparatus without intermediate ac conversionCascode current mirrorEngineering
The invention discloses a charge pump circuit which comprises an input high swing amplitude cascode current mirror, an output high swing amplitude cascode current mirror and a suppression charge shared circuit, wherein, a pull-up and a pull-down circuits are formed by a pull-up output cascode current mirror and a pull-down output cascode current mirror in the output high swing amplitude cascode current mirror as well as the suppression charge shared circuit, a pull-up switch pipe and a pull-down switch pipe. The cascode current mirror structure is adopted by output, so that the resistance of the output current mirror is increased, the influence of the change of the output voltage on the electric current is reduced, and the noise of a switching tube is avoided affecting the output voltage. Meanwhile, the sharing effect and the coupling effect of the charge can be inhibited.
Owner:CHENGDU CORPRO TECH CO LTD
Thermal Control Method for Attitudeless Satellite
ActiveCN105659752BSolve the problem of guaranteeing temperature levelsEnhanced radiation heat transferCosmonautic environmental control arrangementSystems designGallium arsenate
The thermal control method of the non-attitude satellite, paste or spray the high-emissivity thermal control coating on the equipment in the star, fill the thermal conductive filler between the equipment installed on the partition and the installation surface, and spray the high-emissivity thermal control coating on the inner surface of the rest of the structure star Floor. The inner surface of the cabin board is covered with multi-layer heat insulation components to reduce the impact of drastic changes in heat flow outside the outer orbit of the star. Except for the installation surface of the instrument and equipment, the structural star module is pasted with third-order gallium arsenide solar cells. From the perspective of top-level system design, the present invention is based on the whole star isothermal design idea, fully utilizes the whole star structure heat storage, and utilizes solar cells as energy supply equipment and temperature control means at the same time, and adopts three-dimensional direction 3D isothermal heat pipe combination and integration The 3D isothermal device composed of a metal frame solves the problem of ensuring the temperature level of the entire satellite when there is no attitude control.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Device and method for measuring oil consumption of engine
ActiveCN104614032AAvoid influenceGuaranteed accuracyRelative volume flow measurementsRelative variationFuel tank
The invention provides a device and method for measuring the oil consumption of an engine. The measuring device is composed of an oil filling tank, an observation window, an oil drain valve, an oil collecting tank, a vent pipe, a lifting platform, a camera, an electronic scale and the like. During measurement, when the working condition is in stable operation, the engine oil liquid level is relatively stable, and an oil level line which is flush with a valve opening in a visual oil level pipe is used as the basis reference. On the basis of the variation of the relative quality of engine oil added into the engine within a testing time period, the oil consumption of the engine within the testing time period is tested, and the relative variation of the oil weight is accurately measured through the accurate measurement and the zero clearing operation of the electronic scale. Meanwhile, measurement is conducted under the state that the engine is not stopped, the influence of operation condition difference of the engine and the oil storage amount difference of a filter under different working conditions on the oil consumption measurement result is avoided, and the measurement precision of the oil consumption of the engine is improved. In the testing process, it is guaranteed that the oil in the engine is placed above the normal operation liquid level, and the engine is prevented from being damaged.
Owner:CHERY AUTOMOBILE CO LTD
Sampling drilling tool with coring tube of multi-rod deep sampler
ActiveCN103837372AImplement Deep SamplingThe accuracy of the docking position is lowWithdrawing sample devicesButt jointSteel ball
The invention discloses a sampling drilling tool with a coring tube of a multi-rod deep sampler. The sampling drilling tool comprises a drill pipe, the coring tube and a drill tool butt joint component, wherein the drill tool butt joint component comprises a force transmission joint, a coring tube butt joint, a drill pipe butt joint and a butt joint spring, the coring tube is of a thin-wall cylindrical structure, the inner wall of the coring tube is a smooth equal diameter cylinder, anti-falling covers are respectively installed at the bottom and the top of the inner wall, samples enter from the anti-falling covers, the anti-falling covers prevent the samples from falling; the interior of the drill pipe is a cylindrical cavity, a cylindrical cavity is arranged at the lower end of the top end joint of the drill pipe, two symmetrical grooves are axially formed in the cavity, the upper section of the joint is conical, the top of the cone is a circular bead, two symmetrical bulges are arranged in the cylindrical cavity at the bottom end of the drill pipe and are matched with symmetrical grooves of the top joint of other drill pipe, and the bottom end of one drill pipe is locked together with the top end of other drill pipe through a steel ball. By adopting the manner of butt joint by multiple drilling tools, the sampling drilling tool realizes deep sampling, and each drilling tool can be reused.
Owner:BEIHANG UNIV
Gas injection type rotary detonation ramjet combustion chamber
ActiveCN111664022AWiden the flight envelopeWork lessExplosive combustion chamberRam jet enginesRamjetCombustion chamber
The invention provides a gas injection type rotary detonation ramjet combustion chamber. The combustion chamber is a cavity defined by a shell and a center body arranged in the shell, wherein the shell is in a hollow cylinder shape, the two ends of the shell are open, the cavity comprises an air inlet channel, an isolation section channel, a mixing channel, an expansion channel, a combustion chamber cavity body, a combustion chamber throat and an exhaust nozzle which sequentially communicate, fuel nozzles are arranged at the expansion channel and / or the combustion chamber cavity body, and an annular rocket is arranged at the isolation section channel. According to the gas injection type rotary detonation ramjet combustion chamber, air is mixed and pressurized through the annular rocket, mixed airflow is converted into subsonic velocity from supersonic velocity in the expansion section, and a throttling section is formed, so that pulsating pressure generated in the combustion process ofthe combustion chamber is prevented from being transmitted to the upstream; and meanwhile, the annular rocket is adopted for ejection and pressurization, so that the combustion efficiency of the combustion chamber is improved, the flight envelope range of a rotary detonation ramjet is widened, an aircraft can normally work when the flight Mach number is low, and stable thrust is provided for theaircraft.
Owner:NAT UNIV OF DEFENSE TECH
Antiflaming arc prevention fabric
InactiveCN103085419AAnti-staticImprove flame retardant performanceSynthetic resin layered productsWoven fabricsPolyesterSurface layer
The invention discloses an antiflaming arc prevention fabric which comprises an anti-static antiflaming layer on the surface layer and a heat isolation comforting layer on the inner layer, wherein the anti-static antiflaming layer is mutually woven of warp yarns and weft yarns; the warp yarns are formed by blending polyaniline conductive fibers and aramid fibers; the weft yarns are formed by blending polypyrrole conductive fibers and polyester fibers; and the heat isolation comforting layer is woven of ramie and cotton blended fibers. Due to blending and weaving of the conductive fibers and the antiflaming insulating fabrics, the anti-static antiflaming fabric can be formed, is high in antiflaming property and can prevent static electricity; by the fabric woven of the high temperature resistant and high heat dissipation the ramie and cotton blended fibers, influence of high temperature on a human body can be avoided; and on the fabric, people feel cool, soft and comfortable.
Owner:苏州金尚豪纺织有限公司
Preparation method of bottom emitting top gate self-aligning thin film transistor
PendingCN107808826ASimple processReduce parasitic resistanceTransistorSolid-state devicesComposition processActive layer
The invention relates to the technical field of display, and discloses a preparation method of a bottom emitting top gate self-aligning thin film transistor. The preparation method comprises the stepsthat a light shading layer, a first buffer layer covering the light shading layer and a deposited active layer which are formed on an underlying substrate in turn. The preparation method also comprises the steps that a first metal layer is deposited on the active layer, and the active layer and the first metal layer are patterned by using a two-tone mask plate so that an active island and a metalbuffer layer are formed through the primary composition process; and source and drain electrodes are formed on the metal buffer layer. The active layer does not need to be conductive, the parasitic resistance between the channel region and the source and drain electrodes can also be effectively reduced, and the number of the mask plate is not increased so that the technological process of the device can be simplified, the production cost can be saved, the metal buffer layer and the light shading layer are cooperated to effectively prevent the influence of the light on the channel region and the LDD region, the illumination stability of the top gate device can be improved, the problem of appearing of the residual image in display can be avoided and the efficiency of the technological process and the product yield rate can be enhanced.
Owner:BOE TECH GRP CO LTD
Magnetic refrigeration material compound with high magnetic entropy change and its preparation method
InactiveCN102464972AImprove performanceHighlight inherent characteristicsMagnetic materialsHeat-exchange elementsManganeseMagnetic refrigeration
The invention discloses a magnetic refrigeration material compound with a high magnetic entropy change and its preparation method. With a chemical composition formula of (La0.7Ca0.2Tm0.1)Mn1-xMxO3, the magnetic refrigeration material compound in the invention employs the structural system of manganese perovskite LaMnO3 as a matrix, adopts Ca and Tm as matrix component ions, and takes M as a point defect controlled doping ion, wherein, the x is greater than 0 and smaller than or equal to 0.1. And the greatest magnetic entropy change of the compound is greater than or equal to 5.0J / kg.K under a 5T magnetic field. In the invention, doping of ions of different valences and atmosphere treatment are employed to regulate and control point defects. The magnetic refrigeration performance of the compound is improved by controlling electron transport in a crystal structure and interionic spinning electron coupling effect, thus obtaining a high Curie transition point and good material usage performance. Therefore, the magnetic entropy change value of the compound can be enhanced by about an order of magnitude, and the compound of the invention has the characteristics of high material stability, no toxic or side effect, simple operation process, and low cost, etc.
Owner:CHINA JILIANG UNIV
Freshness preservation method of abalone
ActiveCN102150698ANo adverse effect on food safetyFood safety impactMeat/fish preservation by freezing/coolingMeat/fish preservation using chemicalsBiotechnologyEscherichia coli
The invention discloses a freshness preservation method of the abalone. The method comprises the following steps of: sequentially performing the sterilizing treatment by ozone, the monomer ice temperature treatment and the ice glaze plating treatment on the cleaned abalone. After the freshness preservation abalone prepared by the method is refrigerated, the population number of the volatile salt basic nitrogen and the escherichia coli are lower than the national standard, and the dehydration ratio is less than 1.0%; and a abalone soft body is high in elasticity, free of peculiar smell, and intact in tissue. After the invention is used, the freshness and the tenderness of the abalone are effectively preserved.
Owner:福州日兴水产食品有限公司
Electric power heat insulation type insulator insulation shielding cover
ActiveCN105356367AGuaranteed insulation effectEasy to installCoatingsApparatus for overhead lines/cablesWear resistantEngineering
The invention discloses an electric power heat insulation type insulator insulation shielding cover. The electric power heat insulation type insulator insulation shielding cover comprises an insulator shielding cover, a shielding cover covering plate, and a suspension clamp shielding cover, the insulator shielding cover is arranged in the U shape, edges of two side surfaces of the insulator shielding cover are provided with first fixing holes, the inner side of the lower part of the insulator shielding cover is provided with a base connecting groove, the insulator shielding cover is movably connected with the suspension clamp shielding cover via the base connecting groove, the shielding cover covering plate is arranged in the T shape, the shielding cover covering plate is provided with second fixing holes corresponding to the first fixing holes, the central part of the suspension clamp shielding cover is provided with a U-shaped metal shielding cover, the external surface of the metal shielding cover is provided with a U-shaped slipway, the inner part of the metal shielding cover is provided with wire clamp fixtures, and surfaces of the insulator shielding cover, the shielding cover covering plate, the suspension clamp shielding cover, and the metal shielding cover are all coated with high-temperature-resistant and wear-resistant insulation paints. According to the electric power heat insulation type insulator insulation shielding cover, the structure is simple, the operation is convenient, the shielding effect is good, and the safety factor is big.
Owner:国网河南省电力公司超高压公司 +1
Device and method for realizing online transaction asynchronous processing based on database
ActiveCN102096708AReduce resource usageReduce system resource usageSpecial data processing applicationsAsynchronous processingOnline transaction processing
The invention discloses a device for realizing online transaction asynchronous processing based on a database. The device comprises an internal gateway, a service processing device, a field retaining device, an information sending device, an information receiving device and an external gateway, wherein the field retaining device is connected with the internal gateway through the service processing device and is connected with the external gateway through the information sending device or the information receiving device; and the field retaining device stores scenes in an information sending stage and recovers the scenes in an information returning stage to realize the asynchronous processing of an online transaction. The invention also discloses a method for realizing the online transaction asynchronous processing based on the database. By using the device and the method, the influence on the online transaction processing system of a commercial mechanism is reduced when online transaction processing systems of other cooperation commercial mechanisms are abnormal; and the reliability and the service efficiency of the online transaction processing system of the commercial mechanism are improved.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA
An engine low-pressure simulation testing platform
InactiveCN103364197ASolve the problem that the engine test under the low pressure state cannot be simulatedNo need to spend moneyInternal-combustion engine testingDynamometerAtmospheric pressure
The invention discloses an engine low-pressure simulation testing platform. The engine low-pressure simulation testing platform comprises an airtight case body. A temperature adjusting device, an air pressure adjusting device, and an engine cooling device are disposed on the case body. A dynamometer, a dynamometer cooling device, and an engine oil supplying device are disposed in the case body. The engine low-pressure simulation testing platform is capable of simulating a low-atmospheric-pressure environment of a plateau at a low-altitude area and provides convenience for engine test.
Owner:GUANGXI YUCHAI MASCH CO LTD
Wire feeding mechanism for fused deposition additive manufacturing of flexible wires
ActiveCN106515006AImprove job stabilityPrecise wire feedingAdditive manufacturing apparatus3D object support structuresEngineeringMaterial storage
Owner:HARBIN UNIV OF SCI & TECH
Noise insulating cover of power system
ActiveCN104033247AGuaranteed uptimeInsulate the influenceMachines/enginesEngine componentsElectrical and Electronics engineering
A noise insulating cover of a power system comprises a body used for sealing the power system, and side-opening doors arranged on the side face of the body. The noise insulating cover is characterized in that a ventilating system and an air renewal system are arranged on the body, a movable noise insulating device matched with the side face of the body is arranged, and power ports are arranged on the movable noise insulating device. The noise insulating cover has the advantages that the noise insulating cover is good in noise reducing effect, simple in structure, convenient to mount and good in heat radiating effect.
Owner:四机赛瓦石油钻采设备有限公司
Flexible organic electroluminescence display (OELD) and manufacture method thereof
InactiveCN102709492AGood flexibilityImprove conductivitySolid-state devicesSemiconductor/solid-state device manufacturingHigh volume manufacturingWater vapor
The invention discloses a manufacture method of a flexible organic electroluminescence display (OELD). The manufacture method comprises the following steps of: (1) taking an FPC (Flexible Printed Circuit) base material comprising a first Cu layer, a PI layer and a second Cu layer, and photoetching the second Cu layer to obtain a required first electrode pattern; (1) processing the first electrode pattern to obtain a substrate; (3) evaporating an organic electroluminescence material and a second electrode on the substrate in sequence; (4) packaging to form a device; and (5) binding IC (Integrated Circuit) to obtain the flexible OELD. According to the manufacture method of the flexible OELD, disclosed by the invention, FPC in COF (Chip on Flex) is used as the base material to manufacture the flexible OELD, is good in flexibility and strong in electroconductivity, and can be used to completely isolate the influence of water vapor to OELD, so that the advantages of a plastic thin film and a stainless sheet are combined, the permeation of the water vapor and oxygen on the surface of the base material can be isolated completely, and by adoption of a process of etching one Cu layer in the FPC, the manufacture method is suitable for mass production.
Owner:TRULY SEMICON
Kitchen sewage oil and water separation treatment device convenient to clean
InactiveCN107857385AWon't flow outReduce pollutionFatty/oily/floating substances removal devicesSpecific water treatment objectivesSewageOil water
The invention discloses a kitchen sewage oil-water separation treatment device for convenient cleaning in the technical field of water treatment, comprising an oil-water separation box and a sealing end cover, the sealing end cover is arranged on the top of the oil-water separation box, and the oil-water separation box The left and right sides of the bottom are provided with shock-absorbing and stable seats, and the inner cavity of the oil-water separation box is respectively provided with a primary filter screen, a limit partition, a diversion partition, and an oil-water separation plate from left to right. The structure of the present invention is simple. The production cost is low, reducing the cost of domestic sewage treatment, which is conducive to popularization. Through the cooperation of the sealing end cover and the oil-water separation box, the sewage inside the oil-water separation box will not flow out, and the influence of internal pollution on the outside will be isolated. The mutual cooperation of the filter screen and the limit block facilitates the cleaning of the sundries filtered by the first-stage filter screen, and reduces the breeding of germs caused by the accumulation of sundries on the first-stage filter screen.
Owner:李晓燕
Medical portable refrigerator
InactiveCN106185054AGuaranteed temperatureGuaranteed refrigeration effectDomestic cooling apparatusLighting and heating apparatusRefrigerator carInsulation layer
The invention belongs to the field of medical apparatus and instruments and discloses a medical portable refrigerator comprising a refrigerator body, a refrigerator cover, a biological ice box, a test tube fixing plate and fixed strips; the upper surface of the refrigerator body is in contact with the lower surface of the refrigerator cover; the edge of the refrigerator body is connected with the edge of the refrigerator cover through a zipper; the biological ice box is vertically distributed inside the refrigerator body in a way of keeping to the side; the test tube fixing plate is arranged in a space defined by the biological ice box; the refrigerator body is sequentially composed of a insulation layer and a vacuum layer from outside to inside; the plurality of fixed strips are arranged in the refrigerator body; a plurality of guide slots are formed in the surface of the biological ice box; and the left and right sides of the test tube fixing plate are at least provided with two marbles. Due to the adoption of a double-layer insulation design of the insulation layer and the vacuum layer, the medical portable refrigerator can be used as a short-term refrigerator for drugs, vaccines and test tube reagents; and the medical portable refrigerator is simple in structural design, low in manufacturing cost, particularly suitable for medical personnel in the countryside and also convenient to use in the open.
Owner:宁芳
Ultrahigh-precision scanning, film-coating, positioning and photo-etching device
ActiveCN103698984AAvoid interferenceReduced Thrust DemandPhotomechanical exposure apparatusMicrolithography exposure apparatusNumerical controlContinuous scanning
Owner:JIAXING HUALING MECHATRONICS CO LTD
Isolation process repairing method for ecological repairing of red mud stock yard
InactiveCN111108841AEnsure survival basis and growth effectSolve ecological restorationSoil-working methodsCapillary TubingVegetation
The invention discloses an isolation process repairing method for ecological repairing of a red mud stock yard. The method comprises the following steps: turning, digging and flattening red mud at thered mud stock yard so as to form a loosening layer, applying an acid substance to the surface of the red mud, neutralizing alkalinity of the red mud so as to form a neutral layer, laying graded broken stone or a geotechnique material on the surface of the neutral layer so as to form a capillary tube isolation layer, laying a medium essential for plants to grow on the surface of the capillary tubeisolation layer so as to form a medium layer, and planting plants on the medium layer so as to form a vegetational community layer. By adopting the isolation process repairing method for ecological repairing of the red mud stock yard, the effective capillary tube isolation layer is constructed on the surface of the red mud, so that the influence of high salt and alkalinity of the red mud upon plants planted on the surface of the red mud can be fundamentally avoided, living bases and growth effects of the planted plants can be ensured, and furthermore, problems of ecological repairing of the red mud stock yard can be effectively solved.
Owner:芷兰生态环境建设有限公司
Optical fiber ring packaging structure
PendingCN110514195AAvoid Cantilever ConnectionsImprove connection strengthSagnac effect gyrometersMountingsThermal controlOptical fiber
The invention relates to an optical fiber ring packaging structure. The optical fiber ring packaging structure comprises a magnetic shielding layer 1, a thermal control layer 2, bonding layers 3 and an optical fiber ring 5; the optical fiber ring 5 is of an annular body structure; the thermal control layer 2 is of a hollow annular body structure; the optical fiber ring 5 is arranged in the hollowannular body of the thermal control layer 2; the upper side surface and lower side surface of the optical fiber ring 5 are fixedly connected with the inner surface of the thermal control layer 2 through the bonding layers 3; the magnetic shielding layer 1 is of a hollow annular body structure; and the thermal control layer 2 and the optical fiber ring 5 are arranged in the hollow annular body of the magnetic shielding layer 1. With the optical fiber ring packaging structure adopted, an optical fiber ring packaging problem under a complex environmental condition in engineering practice is solved, and the environmental adaptability of an optical fiber gyroscope is improved.
Owner:XIAN FLIGHT SELF CONTROL INST OF AVIC
Mounting and locking mechanism of automatic vending machine sealing door
ActiveCN103489258AInsulate the influenceEnsure stabilityCoin-freed apparatus detailsApparatus for dispensing discrete articlesCold airLocking mechanism
The invention relates to a mounting and locking mechanism of an automatic vending machine sealing door. An open hole is formed at the lower end of the front end face of each goods bin, a hook is mounted on the inner side of a valve opposite to each open hole in position, and enters the corresponding open hole to be closely connected with a swinging, rotating, tensioning and closing device mounted at the bottom of the corresponding goods bin, each swinging, rotating, tensioning and closing device can enable the corresponding valve to be closely connected on the front end face of the corresponding goods bin in an abutted manner, a trigging connecting rod is mounted on the inner side of each valve, and a switch is mounted in the side wall, opposite to the corresponding triggering connection rod in position, of each goods bin, and connected with a control module. The valves and the goods bins are matched with each other, and the valves have excellent heat insulating performance, so that hot air or cold air in the goods bins is enabled to be less prone to leaking, and safe storage of articles in the goods bins is guaranteed; a connecting structure between each valve and the corresponding goods bin is simple and convenient to operate, simple in structure and low in manufacturing and mounting cost; the valves and the goods bins are in close fit, so that further heat insulation effect is realized, and the integral structure is enabled to be more safe.
Owner:TIANJIN LEIYUNFENG TECH
Simulation method used for satellite high-precision load ground weightlessness
ActiveCN106441826AImprove versatilityRealize self-balancing suspensionMachine part testingVibration testingWeightlessnessVibration isolation
The present invention discloses a simulation method used for satellite high-precision load ground weightlessness. The method comprises the steps of 1 adjusting the attitude of a satellite; 2 unlocking a vibration isolation device; 3 unloading the head of a load photoelectric precision machine; 4 suspending the satellite flexibly; 5 adjusting the satellite horizontally; 6 statically placing the satellite; 7 readjusting the satellite horizontally; 8 readjusting the unloading force of the head of the load photoelectric precision machine.
Owner:SHANGHAI INST OF SATELLITE EQUIP
Nitrogen filling vacuum pressure impregnation equipment and method
ActiveCN106040527AInsulate the influenceReduce water moleculesNitrogen purification/separationLiquid surface applicatorsSolventVacuum pressure
The invention discloses nitrogen filling vacuum pressure impregnation equipment and method. The equipment comprises a nitrogen preparation device, a paint impregnating vessel, a vacuum unit, a paint storage tank and an exhausting and recovering system. The nitrogen preparation device is connected with the paint impregnating vessel through a pressurizing pipe, and a pressurizing valve is arranged on the pressurizing pipe. The paint impregnating vessel is connected with the vacuum unit through a vacuum pipe, and a vacuum valve is arranged on the vacuum pipe. The bottom of the paint impregnating vessel is connected with the bottom of the paint storage tank through a paint conveying pipe, and a paint conveying valve is arranged on the paint conveying pipe. The paint impregnating vessel is connected with the exhausting and recovering system through an exhausting pipe, and an exhausting valve is arranged on the exhausting pipe. The technical problems that existing vacuum pressure impregnation processes are not good in impregnation effect and high in using cost, output pressure is not easy to control, and solvent waste and environment pollution are liable to occur are solved.
Owner:襄阳中车电机技术有限公司
Efficient silicon solar module
InactiveCN105140323AReduce the chance of occurrenceDelay agingPhotovoltaic energy generationSemiconductor devicesHigh transmittanceEthylene-vinyl acetate
The invention discloses an efficient silicon solar module, which comprises a tempered glass layer, an ethylene-vinyl-acetate (EVA) layer I, a silicon layer, an EVA layer II and a back plate, wherein at least one antireflection film also coats the outer surface of the tempered glass layer; the thickness of each antireflection film is d; d=(n+0.25)lambda; lambda is 400-760nm; the exposed surface of the EVA layer I is a high-transmittance modified EVA plastic layer coated with an oxygen barrier layer; the exposed surface of the EVA layer II is a thermally stably modified high-heat dissipation EVA plastic layer coated with the oxygen barrier layer; and the back plate is in a multi-layer structure. The efficient silicon solar module has the advantages of stable structure, high solar utilization efficiency and high generation efficiency, and simultaneously has good heat dissipation property.
Owner:宁波贝达新能源科技有限公司
Marine flat-bulb steel squirrel-cage type induction heating device and marine flat-bulb steel squirrel-cage type induction heating process
ActiveCN110791626AAchieve continuous quenchingReasonable temperature distributionIncreasing energy efficiencyFurnace typesEngineeringHeating effect
The invention relates to a marine flat-bulb steel squirrel-cage type induction heating device and a marine flat-bulb steel squirrel-cage type induction heating process and belongs to the technical field of metallurgical thermal treatment processes. Continuous quenching is achieved by way of preheating and heating the marine flat-bulb steel by using copy coils of a preheating coil group and a heating coil group as the marine flat-bulb steel is driven by a roller conveyor belt to move at a uniform speed. A reasonable temperature distribution is obtained on the surface of a workpiece by means ofheat conduction, and an ideal heating effect is obtained by way of secondary heating. The surface temperature of the preheated marine flat-bulb steel is detected in real time through an infrared temperature measuring camera and the copy coils are matched with different shape parameters of the marine flat-bulb steel on line in the heating process, so that a phenomenon of an excessive local temperature difference caused by a sharp corner effect is reduced and the performance of the marine flat-bulb steel after induction heating quenching and the uniformity of a hardening layer are improved.
Owner:YANSHAN UNIV
Broadband semi-elliptical slot antenna array in millimeter wave antenna level packaging and design method
ActiveCN111525250ASmall change in impedanceAchieving a resonance effectAntenna arraysRadiating elements structural formsCoplanar waveguideDielectric substrate
The invention discloses a broadband coplanar waveguide semi-elliptical slot antenna array structure in millimeter wave antenna level packaging, relates to the technical field of antenna arrays, and solves the problem of how to design an antenna array which is large in array bandwidth, high in gain, easy to integrate and suitable for a narrow, long and straight scene. The antenna comprises an antenna array radiation assembly, an antenna array feed assembly and a GCPW-to-CPW transition structure. The antenna array feed assembly excites a corresponding antenna unit through a GCPW-to-CPW transition structure and a rectangular CPW feed line. The antenna unit comprises an etched semi-elliptical gap of a first metal grounding plate on the upper surface of a microwave dielectric substrate and an open-circuit fan-shaped branch knot. The semi-elliptical gap is a gap etched by the fan-shaped outer edge of the fan-shaped branch knot and the first metal grounding plate; the distance between the midpoint of the chord corresponding to the fan-shaped arc of the open-circuit fan-shaped branch knot and the surrounding first metal grounding plate is gradually changed according to a semi-ellipse, andcompared with a traditional circular and elliptical slot structure, the slot width is reduced, the array radiation effect is improved, and the array bandwidth and gain are larger.
Owner:ANHUI UNIVERSITY
Method for preparing, storing, using and repairing battery or capacitor under negative pressure
InactiveCN102255104ARealize researchInsulate the influenceElectrolytic capacitorsFinal product manufactureCapacitanceControl system
The invention discloses a method for preparing, storing, using and repairing a battery or a capacitor under a negative pressure. The method is implemented by adopting the technical scheme that: external connection devices of the battery or the capacitor are arranged at one even more positions of a battery or capacitor cavity, and comprise pipelines, valves, meters and the like, and the valves are operated to fulfill the aims of preparing, storing, using and repairing the battery or the capacitor under the negative pressure; the battery or the capacitor and the external connection devices thereof are arranged in an environmental control system of the battery or the capacitor, and are operated to fulfill the aims of preparing, storing, using and repairing the battery or the capacitor under the negative pressure; and the battery or the capacitor is used when the cavity thereof is internally in a negative pressure state. The method is particularly suitable for injecting electrolyte in situ to activate the battery or the capacitor in occasions, such as a using occasion, except a manufacturing plant of the battery or the capacitor into which the electrolyte is not injected to avoid the performance degradation, explosion risks and inconvenience of the battery or the capacitor in transportation and storage.
Owner:广州捷力新能源科技有限公司
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