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Optical fiber vibration sensing head and manufacturing method thereof
InactiveCN101608944AWide operating frequency rangeAggressive and obviously mass-producedSubsonic/sonic/ultrasonic wave measurementPhotomechanical apparatusFiberVibration acceleration
The invention discloses an optical fiber vibration sensing head, which consists of a vibration sensitive chip, a dual fiber collimator and an encapsulation shell, wherein the inside of the encapsulation shell under the dual fiber collimator is provided with a cavity, the vibration sensitive chip is arranged in the cavity and consists of micro light reflector, a silicon supporting frame and a substrate glass sheet; the silicon supporting frame is bonded with the substrate glass sheet; the micro light reflector is arranged in the silicon supporting frame; a damping air cavity is reserved between the micro light reflector and the substrate glass sheet; two sides of the micro light reflector is symmetrically provided with torsion shafts; and one end of each of the torsion shaft is connected with the silicon supporting frame. An MEMS process is used to integrate a MEMS vibration sensitive chip. Based on an asymmetric torsion micro light reflector structure, the MEMS vibration sensitive chip can be manufactured in batch. The torsion shafts are used as elastic elements, and the micro light reflector is used as a sensitive mass block to reflect vibration acceleration. The damping air cavity is used for controlling the damping characteristic of torsion. The invention has the advantages of batch production, low cost and high consistency.
Owner:上海前所光电科技有限公司
Photoelectric catalysis reactor taking photocatalysis fuel battery as power supply
InactiveCN102701316AHigh quantum yieldReduce usageWater/sewage treatment by irradiationQuantum yieldTio2 nanotube
The invention provides a photoelectric catalysis reactor taking a photocatalysis fuel battery as a power supply. The reactor consists of a photocatalysis fuel battery reactor A and a photoelectric catalysis reactor B which are connected by a conductor and a 10-ohm resistor. The reactor can reduce the use of additional electricity while increasing the quantum yield of TiO2. The photocatalysis fuelbattery reactor A takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and takes a platinum sheet as a cathode, and 0.01mol / L Na2SO4 as electrolyte. The photoelectric catalysis reactor B takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and is connected with the photocatalysis fuel battery by taking a platinum sheet as a cathode, and 0.05mol / L acetic acid and 0.01mol / L Na2SO4 as electrolyte. The reactor has the advantages of greatly improving the quantum yield of TiO2, thus further accelerating organic pollution degradation process of TiO2 photocatalysis by two times compared with the photocatalysis speed, being energy-saving, safe and efficient, and generating no harmful substances.
Owner:HOHAI UNIV
Array waveguide grating-based temperature sensing method and temperature sensor
ActiveCN101876573AEliminate the effects ofElimination of Polarization DependenceThermometers using physical/chemical changesGratingElectromagnetic interference
The invention belongs to the technical field of temperature measurement and discloses an array waveguide grating-based temperature sensor. A single wave-length laser is input into an array waveguide grating which serves as a temperature sensing and detecting element and is provided with at least two output passages, and the ambient temperature value of the array waveguide grating is obtained by monitoring the light intensities of the two output passages of the array waveguide grating, so that the aim of sensing temperature is fulfilled. The invention also provides a temperature sensing method implemented by using the sensor. Compared with other fiber optic sensors, the sensor is affected by the power fluctuation or frequency departure of a laser and has higher accuracy. The method and the sensor can be used for monitoring and controlling temperature or preventing fire in various environments with high electromagnetic interference and the like.
Owner:GUANGXUN SCI & TECH WUHAN +1
Counterfeit planar 3D false target and device and method for counterfeiting the counterfeit planar 3D false target
ActiveCN103292636ASuperiorMass-producedDuplicating/marking methodsCamouflage devicesImaging processingComputer graphics (images)
The invention relates to the technical field of civil-defense target camouflage and discloses a counterfeit planar 3D false target and a device and method for counterfeiting the counterfeit planar 3D false target, which are applicable to the civil-defense target camouflage. The device adopted by the method for counterfeiting the counterfeit planar 3D false target comprises a scene collection device, an image processing device and a spray-painting device, wherein the electrical signals of the scene collection device are transmitted to the image processing device and the spray-painting device through cables. The device provided by the invention can simulate the mode of the 3D false target of various scenes and counterfeit the damaged scenes which are difficult to simulate for a traditional false target and various complex targets, has the characteristics of simple structure and quickness in counterfeiting, and can perform lot production. The counterfeit planar 3D false target comprises a 3D false target main body and anchoring devices, which are connected, is convenient to unfold and pack up, and can meet the requirements of quickly creating a false impression.
Owner:UNIT 61489 OF PLA
A flexible and transparent gas sensor based on semiconducting single-walled carbon nanotubes
ActiveCN104677879BHigh detection sensitivityQuick responseRaman scatteringPtru catalystCarbon nanotube
The invention relates to the field of flexible and transparent gas sensors, in particular to a flexible and transparent gas sensor based on semiconducting single-wall carbon nanotubes and a preparation method thereof, and uses semiconducting single-wall carbon nanotube flexible transparent films to construct a high-performance flexible gas sensor . Using semiconducting single-walled carbon nanotubes as gas-sensing materials, using floating catalyst chemical vapor deposition to prepare and collect semiconducting single-walled carbon nanotube films, and prepare semiconducting single-walled carbon nanotubes loaded on flexible transparent substrates by hot-press transfer or spraying process The flexible and transparent film of single-walled carbon nanotubes is connected to the external output device by using silver glue or electroplating connecting wires to complete the assembly of flexible and transparent gas sensor elements of semiconducting single-walled carbon nanotubes. The invention realizes the preparation of small, light, flexible, transparent, bendable, and high-performance gas sensors, and breaks through the limitations of current metal oxide gas sensors in terms of flexibility, transparency, bendability, and weight.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Preparation method for silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane
InactiveCN104928851ASimple processMass-producedHeating/cooling textile fabricsNon-woven fabricsPolymer dissolutionFunctional monomer
The invention discloses a preparation method for a silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane. The method comprises the steps that temperature stimuli responsiveness monomers and functional monomers with heat reactivity groups are copolymerized to form a polymer with the temperature stimuli responsiveness by adopting a free radical polymerization method; the polymer is dissolved in deionized water at room temperature, proper silver nitrate is added into the deionized water with the polymer, the mixture is mixed evenly, and the silver ions in the mixture are reduced to silver nanoparticles through ultraviolet light irradiation; electrostatic spinning is conducted on a polymer aqueous solution with the silver nanoparticles, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane is obtained. According to the preparation method for the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane, the hybrid nanofiber membrane is prepared by adopting an electrostatic spinning method, in the preparation process, water is adopted to serve as the solution, mild conditions are achieved, and harmful and poisonous products are not produced; the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be stored in the water stably, dissociation does not occur, the temperature stimuli responsiveness is achieved, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be used for catalytic reaction or a substrate with the surface-enhanced Raman spectrum or antiseptic dressing.
Owner:DONGHUA UNIV
Environment-friendly brass alloy for casting and manufacturing method thereof
ActiveCN107385273AMeet the requirements of the amount of precipitationComply with lead-free regulationsManganeseAlloy
The invention provides an environment-friendly brass alloy capable of meeting the lead-free requirement and different from bismuth brass, silicon brass and arsenic brass and a preparation method thereof. The elements of selenium, tellurium, antimony, phosphorus, magnesium and manganese are not contained in the brass alloy. The alloy is composed of the following components, by weight, of 58-61.5% of Cu, 0.25% or less of Pb, 0.5-0.8% of Al, less than 0.1% of Sn, less than 0.1% of Ni, 0.02-0.15% of Fe and 5-12 ppm of B and the balance Zn and inevitable impurities. The alloy is excellent in polishing property and thermal cracking resistance property, meanwhile has the good comprehensive property and is suitable for casting-forming bathroom plumbing parts.
Owner:XIAMEN LOTA INT CO LTD +1
Production method of colorful bone sample
ActiveCN105973663ANo pollution in the processPollution does not bringPreparing sample for investigationAlcoholIndividual animal
The invention discloses a production method of a colorful bone sample. The method comprises the steps of drawing a material, fixing the material, dyeing the fixed material, vitrifying the dyed material, and carrying out microscopic treatment, wherein a re-fixing step is arranged after the fixing step and before the dyeing step, and the re-fixing step is characterized in that an obtained animal sample is immersed and fixed in 60-95 V% alcohol at 0-4DEG C for 1-3d. The colorful bone sample produced in the invention has the advantages of beautiful profile, high transparence, high fidelity, short production period and realization of batch production.
Owner:马征来
High aspect ratio ultramicro tungsten electrode array and preparation method thereof
A high aspect ratio ultramicro tungsten electrode array and a preparation method thereof. The preparation method comprises steps of: first manufacturing copper splints, front baffles, side baffles and a pedestal; fixing the front baffles, the copper splints and the pedestal together; threading tungsten filaments through the front baffles respectively, placing two ends of each tungsten filament in grooves of the copper splints, and binding and fixing the tungsten filaments in the grooves at backs of the copper splints; fixing the copper splints respectively and repeatedly to prepare an m*n tungsten filament array; fixing the side baffles and the pedestal to form a cavity with the front baffles; casting epoxy resin into the cavity, solidifying and trimming the tungsten filaments; and dismounting the side baffles, the copper splints, the front baffles and the pedestal successively to obtain the high aspect ratio m*n ultramicro tungsten electrode array. Compared with other tungsten electrode arrays prepared by other methods, the ultramicro tungsten electrode array prepared by the method of the invention has characteristics of high aspect ratio, high precision, adjustable array, low costs and suitability for batch production.
Owner:XI AN JIAOTONG UNIV
Method for processing solar cell piece
ActiveCN109599459AMass-producedSimple processFinal product manufacturePhotovoltaic energy generationEtchingSilicon thin film
The invention discloses a method for processing a solar cell piece, comprising the following steps: S1, providing a solar cell piece, wherein the solar cell piece comprises a silicon substrate, a first silicon thin film layer formed on a first main surface of the silicon substrate, and a second silicon thin film layer formed on partial surface of a second main surface of the silicon substrate andthe side surface of the silicon substrate; S2, using a chemical oxidation process to form a first protection layer on the first silicon thin film layer and to form a second protection layer on the surface of the second silicon thin film layer and on the surface, not forming the second silicon thin film layer, of the second main surface; S3, using a first etching solution to remove the second protection layer; S4, using a second etching solution to remove the second silicon thin film layer; and S5, using the first etching solution to remove the first protection layer so as to form a solar cellpiece with a silicon thin film on a single face. According to the method, a pure chemical method is adopted to realize single-side etching of the silicon thin film of a winding surface, and the process is simple and is not limited by the thickness of the silicon thin film.
Owner:JA SOLAR TECH YANGZHOU
Electrostatic driving MEMS deformable mirror based on lever amplification principle
The invention discloses an MEMS deformable mirror based on lever amplification principle, comprising at least two lever amplification electrostatic drivers, at least two articulated beams, at least one supporting structure and a mirror surface; the lever amplification electrostatic drivers are connected with the supporting structure via the articulated beam, the supporting structure is connected with the mirror surface via a connector, and the lever amplification electrostatic drivers are composed of an anchor point, a cantilever beam, an upper pole plate and a lower pole plate, the long arm thereof is connected with the articulated beam, the short arm thereof acts on the upper pole plate, and the anchor point and the lower pole plate are fixed on the same plane. The electrostatic drivingMEMS deformable mirror based on lever amplification in the invention not only has the advantages of common MEMS apparatuses, which has small volume and light weight, has no hysteresis effect, and canrealize array and mass production, but also reduces the influence of electrostatic drawing-in phenomenon by lever amplification, improves stroke and can be widely used in the field of adaptive optics.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Blood pressure reducing electuary, and preparation method and application thereof
InactiveCN106038743AGood treatment effectGood effectPowder deliveryGinkgophyta medical ingredientsTreatment effectSide effect
The invention relates to the field of traditional Chinese medicinal preparations, and concretely provides a blood pressure reducing electuary, and a preparation method and an application thereof. The blood pressure reducing electuary comprises, by weight, 30-45 parts of celery, 20-25 parts of lavender, 10-15 parts of hawthorn fruits, 5-10 parts of Medicago sativa Linn and 10-15 parts of chrysanthemum flowers. The blood pressure reducing electuary prepared through reasonable compatibility of above raw medicines has the advantages of good medicine effects, short treatment period, difficulty in rebounding, and no side effects, can be used for treating hypertension and secondary hypertension, also has a very good treatment effect on coronary heart disease, diabetes, arteriosclerosis, hepatopathy and other hypertension complications, and also has the efficacy of clearing heat and discharging internal heat, relaxing muscles and tendons and stimulating blood circulation, invigorating brains and tranquillizing mind, improving immunity, and clearing heart heat and improving eyesight. The raw materials perform respective efficacy, further enhance the curative effects, and have a better hypertension treatment effect than present medicines.
Owner:银川加梅兰葡萄酒业有限公司
Silicon-based quartz MEMS resonant torque sensor for micro-nano-scale material
ActiveCN110095210AHigh precisionMass-producedForce measurement by measuring frquency variationsMicro nanoTuning fork
The invention relates to a silicon-based quartz MEMS resonant torque sensor for a micro-nano-scale material. The sensor comprises a monocrystalline silicon substrate layer; a silicon dioxide insulating layer is grown on the monocrystalline silicon substrate layer; the silicon dioxide insulating layer is provided with a monocrystalline silicon structural layer; the monocrystalline silicon structural layer comprises a key slot of a linear micro-nano material clamping mechanism; two sides of the key slot are connected with an output beam and the top end of a V-shaped actuating beam; the V-shapedactuating beam is fixed on an anchoring point; the output beam is fixed on the anchoring point through a limiting beam; the two ends of the output beam are connected with the input end of a second-order amplification beam; the second-order amplification beam is fixed on the anchoring point through a fulcrum beam; the output end of the second-order amplification beam is connected with a suspensionplatform; the suspension platform is connected with one end of a quartz double-end fixed tuning fork; the other end of the quartz double-end fixed tuning fork is fixed on the anchoring point; all structures except the anchoring point are in suspended states; a control voltage is applied to the V-shaped actuating beam; and the V-shaped actuating beam moves due to thermal stress, so as to clamp a spline at one end of a linear micro-nano material. The method has the advantages of high precision, low cost and the like.
Owner:XI AN JIAOTONG UNIV
Optical fiber vibration sensing head and manufacturing method thereof
InactiveCN101608944BWide operating frequency rangeAggressive and obviously mass-producedSubsonic/sonic/ultrasonic wave measurementPhotomechanical apparatusFiberVibration acceleration
The invention discloses an optical fiber vibration sensing head, which consists of a vibration sensitive chip, a dual fiber collimator and an encapsulation shell, wherein the inside of the encapsulation shell under the dual fiber collimator is provided with a cavity, the vibration sensitive chip is arranged in the cavity and consists of micro light reflector, a silicon supporting frame and a substrate glass sheet; the silicon supporting frame is bonded with the substrate glass sheet; the micro light reflector is arranged in the silicon supporting frame; a damping air cavity is reserved between the micro light reflector and the substrate glass sheet; two sides of the micro light reflector is symmetrically provided with torsion shafts; and one end of each of the torsion shaft is connected with the silicon supporting frame. An MEMS process is used to integrate a MEMS vibration sensitive chip. Based on an asymmetric torsion micro light reflector structure, the MEMS vibration sensitive chip can be manufactured in batch. The torsion shafts are used as elastic elements, and the micro light reflector is used as a sensitive mass block to reflect vibration acceleration. The damping air cavity is used for controlling the damping characteristic of torsion. The invention has the advantages of batch production, low cost and high consistency.
Owner:上海前所光电科技有限公司
Silicon-based gas sensitive chip with integrated temperature and humidity sensor and manufacturing method thereof
InactiveCN105928567BLow selectivityReduce power consumptionMaterial resistanceWorking temperatureTemperature sensitive
Owner:NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
Surface-mounted piezoelectric micropump and manufacturing method thereof
ActiveCN110985359AEasy to customizeEasy to batchPositive displacement pump componentsFlexible member pumpsEngineeringMicropump
The invention discloses a surface-mounted piezoelectric micropump and a manufacturing method thereof. The manufacturing method comprises the following steps that firstly, five substrates are prepared,and the substrate one to the substrate five are sequentially arranged from top to bottom; ducts and cavities of the five substrates are designed and machined according to the structural characteristics of the micropump; the first substrate forms a top cover, and the second substrate to the fifth substrate are stacked and bonded together to form a pump body; a metal seed layer is deposited on theinner wall of a metal through hole of the pump body, and the corresponding metal is deposited through an electroplating process to fill the metal through hole to form a conductive channel; required patterned metal layers are manufactured on the bottom surface of the top cover and the top surface and the bottom surface of the pump body correspondingly; a piezoelectric vibrator, a top electrode andan insulating layer are sequentially formed on the top surface of the pump body; and finally, the top cover and the pump body are welded together. The method is simple in machining, easy to realize, high in machining precision and capable of being produced in batches at low cost, and the prepared piezoelectric micropump has the characteristics of small volume, light weight, integrated packaging interfaces and large output flow, and is suitable for closed fluid circuits.
Owner:CHINA ELECTRONICS TECH GRP NO 26 RES INST
Preparation method of artificial skin
PendingCN114516175AHigh emulationWide applicabilityAdditive manufacturing apparatus3D object support structuresSynthetic materialsPhotoinitiator
The invention provides a preparation method of artificial skin. The preparation method comprises the following steps: preparing a synthetic material; and a step of three-dimensional printing, wherein in the step of preparing the synthetic material, the synthetic material comprises hydrogel and a photoinitiator, and the volume ratio of the hydrogel to the photoinitiator is 7.5: 1; in the three-dimensional printing step, the synthetic material is prepared into the artificial skin through a three-dimensional printing device, or a mold for preparing the artificial skin is prepared through the three-dimensional printing device; moreover, the surface of the artificial skin prepared by the preparation method is provided with a plurality of textures, and the distribution of the plurality of textures simulates the texture of the epidermis of a human body.
Owner:EAST CHINA UNIV OF SCI & TECH
A temperature sensing method and temperature sensor based on arrayed waveguide grating
ActiveCN101876573BEliminate the effects ofElimination of Polarization DependenceThermometers using physical/chemical changesLaser arrayFire prevention
The invention belongs to the technical field of temperature measurement, and discloses a temperature sensor based on an arrayed waveguide grating. In the invention, a single-wavelength laser is input to an arrayed waveguide grating with at least two output channels as a temperature sensing element, and the The light intensity of the two output channels of the arrayed waveguide grating is monitored to obtain the temperature value of its environment, so as to realize the purpose of temperature sensing. The present invention also provides a temperature sensing method realized by using the above sensor. Compared with other optical fiber sensors, the present invention is not affected by laser power fluctuation or frequency drift, and has relatively high precision. The invention can be used for temperature monitoring, monitoring or fire prevention in various environments such as strong electromagnetic interference.
Owner:GUANGXUN SCI & TECH WUHAN +1
Preparation method of temperature-stimuli-responsive hybrid nanofibrous membrane loaded with silver nanoparticles
InactiveCN104928851BSimple processMass-producedHeating/cooling textile fabricsNon-woven fabricsPolymer dissolutionFunctional monomer
The invention discloses a preparation method for a silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane. The method comprises the steps that temperature stimuli responsiveness monomers and functional monomers with heat reactivity groups are copolymerized to form a polymer with the temperature stimuli responsiveness by adopting a free radical polymerization method; the polymer is dissolved in deionized water at room temperature, proper silver nitrate is added into the deionized water with the polymer, the mixture is mixed evenly, and the silver ions in the mixture are reduced to silver nanoparticles through ultraviolet light irradiation; electrostatic spinning is conducted on a polymer aqueous solution with the silver nanoparticles, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane is obtained. According to the preparation method for the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane, the hybrid nanofiber membrane is prepared by adopting an electrostatic spinning method, in the preparation process, water is adopted to serve as the solution, mild conditions are achieved, and harmful and poisonous products are not produced; the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be stored in the water stably, dissociation does not occur, the temperature stimuli responsiveness is achieved, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be used for catalytic reaction or a substrate with the surface-enhanced Raman spectrum or antiseptic dressing.
Owner:DONGHUA UNIV
A kind of environment-friendly brass alloy for casting and its manufacturing method
ActiveCN107385273BMeet the requirements of the amount of precipitationComply with lead-free regulationsManganeseAlloy
Disclosed are an environmentally friendly brass alloy for casting and a manufacturing method therefor. The brass alloy is free of the elements selenium, tellurium, antimony, phosphorus, magnesium and manganese, and the components thereof are: 58-61.5 wt.% of Cu, ≤ 0.25 wt.% of Pb, 0.5-0.8 wt.% of Al, < 0.1 wt.% of Sn, < 0.1 wt.% of Ni, 0.02-0.15 wt.% of Fe, and 5-12 ppm of B, with the balance being Zn and inevitable impurities. In addition to excellent polishing performance and hot tearing resistance performance, the brass alloy has good comprehensive performance, and is suitable for casting formed bathroom plumbing parts.
Owner:XIAMEN LOTA INT CO LTD +1
Construction tool and method for preparing concrete stair anti-slippery stripes
InactiveCN106703379AImprove rigiditySimple structureBuilding constructionsArchitectural engineeringRidge
The invention relates to a construction tool and method for preparing concrete stair anti-slippery stripes. The tool comprises a body and a baffle plate. The body is a rectangular structure. The rear end surface of the body is integrally provided with the baffle plate perpendicularly arranged on the body. The upper end surface of the body is integrally and horizontally provided with one or several convex ridge / ridges, the lower end of the body corresponding to the convex ridge is provided with an arc-shaped through groove. The tool is integrally produced, the integral rigidity is good, the structure is simple, the production is easy, and the cost is low. The construction tool has the advantages of being fixed in design, flexible to use, capable of mass production and repeated use and the like, effectively enhancing the consistency of the stair anti-slippery stripes, the construction efficiency and the visual appeal of the anti-slippery stripes, and therefore the construction tool has a broad publicizing and application value.
Owner:ZHONGTIAN CONSTR GROUP
Iron carbide composite titanium monoxide nanoparticle photo-thermal catalyst and preparation thereof
ActiveCN111589463AEnhanced light absorptionWide light absorption rangeHydrocarbon from carbon oxidesEnergy inputPtru catalystNanoparticle
The invention relates to an iron carbide composite titanium monoxide nanoparticle photo-thermal catalyst and preparation thereof. The preparation comprises the steps: firstly mixing P25, PAN, DMF andferric nitrate and drying and then calcining for 4 hours at the temperature of 800-850 DEG C in an ammonia atmosphere, and taking out the sample and grinding into powder to obtain the iron carbide composite titanium monoxide nanoparticle photo-thermal catalyst. The catalyst has a wide light absorption range, high methane yield, low resistivity, rapid carrier transfer capability, high photon-generated carrier separation capability, low carrier recombination rate, good carbon dioxide reduction high cycle stability and the like and is used for photothermal catalysis of carbon dioxide to reduce methane, and has a maximum rate of 37.67 [mu] mol.g <-1 >. H <-1 >. The preparation method is simple to operate and low in cost, and the used raw materials are non-toxic and accord with the production concept of environmental protection.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Ink printing preparation method and structure of light-assisted thermoelectric device
ActiveCN110289348BMass-producedLow costThermoelectric device manufacture/treatmentInksThermoelectric materialsLight energy
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Photoelectric catalysis reactor taking photocatalysis fuel battery as power supply
InactiveCN102701316BHigh quantum yieldReduce usageWater/sewage treatment by irradiationQuantum yieldTio2 nanotube
The invention provides a photoelectric catalysis reactor taking a photocatalysis fuel battery as a power supply. The reactor consists of a photocatalysis fuel battery reactor A and a photoelectric catalysis reactor B which are connected by a conductor and a 10-ohm resistor. The reactor can reduce the use of additional electricity while increasing the quantum yield of TiO2. The photocatalysis fuelbattery reactor A takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and takes a platinum sheet as a cathode, and 0.01mol / L Na2SO4 as electrolyte. The photoelectric catalysis reactor B takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and is connected with the photocatalysis fuel battery by taking a platinum sheet as a cathode, and 0.05mol / L acetic acid and 0.01mol / L Na2SO4 as electrolyte. The reactor has the advantages of greatly improving the quantum yield of TiO2, thus further accelerating organic pollution degradation process of TiO2 photocatalysis by two times compared with the photocatalysis speed, being energy-saving, safe and efficient, and generating no harmful substances.
Owner:HOHAI UNIV
Ink printing preparation method and structure of photo-assisted thermoelectric device
ActiveCN110289348AMass-producedLow costThermoelectric device manufacture/treatmentInksThermoelectric materialsPhoto assisted
The invention discloses an ink printing preparation method of a photo-assisted thermoelectric device. The method comprises the steps of mixing an adhesive, a diluent, an N-type or P-type thermoelectric material powder to obtain N-type thermoelectric ink and P-type thermoelectric ink; printing the N-type or P-type thermoelectric ink on a substrate, drying the N-type or P-type thermoelectric ink, and then printing P-type or N-type thermoelectric ink on the substrate; after the substrate with the printed thermoelectric ink is solidified, connecting the N-type thermoelectric ink and the P-type thermoelectric ink in series by a conductive material in order to form a thermoelectric generation unit; and covering the thermoelectric generation unit with two or more light-absorbing materials having different absorptivity to obtain the final photo-assisted thermoelectric device. The prepared photo-assisted thermoelectric device comprises a substrate, a thermoelectric generation unit covering the substrate, and a photo-thermal conversion unit covering the thermoelectric generation unit. The invention provides a photo-assisted thermoelectric device based on ink printing, which can simultaneously collect light energy and heat energy, can be subjected to mass production and has low cost.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Method for preparing products by corrugated board
InactiveCN102514241AImprove integrityCan be under pressure frequentlyPaper/cardboard articlesCardboardClassical mechanics
The invention relates to a method for preparing products by a corrugated board. The method comprises the following steps of: ensuring that the corrugating directions on a stress face (whatever sizes) are the same and are not parallel to the stress face according to whether the products to be prepared are frequently stressed or not; cutting the corrugated board into a plurality of corrugated boardslices which have the structural shape of the products or the structural shapes of parts and components of the products; forming corresponding positioning pin holes in each corrugated board slice, and forming corresponding locking holes as required; and assembling the products to be prepared by mutually positioning, adhering and locking short pins or long pins through the positioning pin holes and the locking holes or locking and adhering all the paperboard slices through locking plates and buckling and locking rods or directly locking the locking plates and the buckling and locking rods. Thecorrugated board stereoscopic products prepared by the method have the characteristics of high integrity, capability of frequently bearing pressure, high interchangeability, aesthetics and mass production.
Owner:广东金丰彩印包装有限公司
Tubular stent as well as preparation method and application thereof
ActiveCN114767931AGood mechanical propertiesEasy to prepareTissue regenerationProsthesisBiomedical engineeringEngineering
The invention discloses a tubular stent and a preparation method and application thereof. The tubular stent comprises a hollow gelatin inner layer and a poly-L-lactic acid layer wrapping the outer surface of the gelatin inner layer. The poly-L-lactic acid layer comprises 2 to 7 poly-L-lactic acid sub-layers. The tubular stent provided by the invention has a bionic structure and excellent mechanical properties, the inner layer and outer layer structures of the tubular stent are similar to the epithelial layer and smooth muscle layer of a natural urethra, and the tubular stent shows J-shaped mechanical reaction characteristics and radial elasticity of the urethra of a young male life body; the gelatin inner layer of the tubular stent is prepared by adopting a solution blow-molding spinning method, and then the poly-L-lactic acid layer of the tubular stent is prepared by adopting a dipping spinning method, so that the preparation method is simple and efficient, and has the advantage of batch production; the tubular stent can be widely applied to preparation of materials for treating urethral injury diseases of young males.
Owner:GUANGZHOU WOMEN AND CHILDRENS MEDICAL CENTER
High aspect ratio ultramicro tungsten electrode array and preparation method thereof
A high aspect ratio ultramicro tungsten electrode array and a preparation method thereof. The preparation method comprises steps of: first manufacturing copper splints, front baffles, side baffles and a pedestal; fixing the front baffles, the copper splints and the pedestal together; threading tungsten filaments through the front baffles respectively, placing two ends of each tungsten filament in grooves of the copper splints, and binding and fixing the tungsten filaments in the grooves at backs of the copper splints; fixing the copper splints respectively and repeatedly to prepare an m*n tungsten filament array; fixing the side baffles and the pedestal to form a cavity with the front baffles; casting epoxy resin into the cavity, solidifying and trimming the tungsten filaments; and dismounting the side baffles, the copper splints, the front baffles and the pedestal successively to obtain the high aspect ratio m*n ultramicro tungsten electrode array. Compared with other tungsten electrode arrays prepared by other methods, the ultramicro tungsten electrode array prepared by the method of the invention has characteristics of high aspect ratio, high precision, adjustable array, low costs and suitability for batch production.
Owner:XI AN JIAOTONG UNIV
Method for preparing products by corrugated board
InactiveCN102514241BImprove integrityCan be under pressure frequentlyPaper/cardboard articlesCardboardClassical mechanics
The invention relates to a method for preparing products by a corrugated board. The method comprises the following steps of: ensuring that the corrugating directions on a stress face (whatever sizes) are the same and are not parallel to the stress face according to whether the products to be prepared are frequently stressed or not; cutting the corrugated board into a plurality of corrugated boardslices which have the structural shape of the products or the structural shapes of parts and components of the products; forming corresponding positioning pin holes in each corrugated board slice, and forming corresponding locking holes as required; and assembling the products to be prepared by mutually positioning, adhering and locking short pins or long pins through the positioning pin holes and the locking holes or locking and adhering all the paperboard slices through locking plates and buckling and locking rods or directly locking the locking plates and the buckling and locking rods. Thecorrugated board stereoscopic products prepared by the method have the characteristics of high integrity, capability of frequently bearing pressure, high interchangeability, aesthetics and mass production.
Owner:广东金丰彩印包装有限公司
A kind of preparation method of colorful skeleton specimen
ActiveCN105973663BNo pollution in the processPollution does not bringPreparing sample for investigationBone specimenHigh fidelity
The invention discloses a production method of a colorful bone sample. The method comprises the steps of drawing a material, fixing the material, dyeing the fixed material, vitrifying the dyed material, and carrying out microscopic treatment, wherein a re-fixing step is arranged after the fixing step and before the dyeing step, and the re-fixing step is characterized in that an obtained animal sample is immersed and fixed in 60-95 V% alcohol at 0-4DEG C for 1-3d. The colorful bone sample produced in the invention has the advantages of beautiful profile, high transparence, high fidelity, short production period and realization of batch production.
Owner:马征来
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