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1557results about How to "Improve use value" patented technology

Infrared camouflage paint as well as preparation method and application thereof

The invention relates to infrared camouflage paint as well as a preparation method and an application thereof. The paint comprises filler, a coating agent and an additive. The preparation method comprises the following steps: mixing and ball-milling 30-90 parts by weight of solvent, 1-30 parts by weight of wetting dispersant and 5-60 parts by weight of filler, so as to obtain lanthanum-based rare earth compound powder concentrated pulp, ball-milling the solvent and the coating agent so as to obtain the ball-milled coating agent, and ball-milling the solvent, the lanthanum-based rare earth compound powder concentrated pulp and the ball-milled coating agent so as to obtain the infrared camouflage paint. According to the application of the infrared camouflage agent, the infrared stealth coating is added to a substrate by using a dipping, coating or padding method. The invention provides a novel low-emissivity material, namely the infrared camouflage paint, not only are materials for the paint easy to obtain, but also the paint is simple to operate, relatively low in cost, capable of effectively pretending and shielding human bodies, glass, polymer films, military weapons and the like and reducing the possibility that the articles are detected by infrared detectors, and has a good application prospect.
Owner:DONGHUA UNIV

Emotion and fatigue detecting auxiliary driving system based on hybrid brain computer interface technology

The invention discloses an emotion and fatigue detecting auxiliary driving system based on hybrid brain computer interface technology. The system comprises the components of a brain electric signal acquisition part, a brain electric signal processing and analyzing part, a fatigue alarming and voice control on-vehicle electric appliance part. The brain electric signal acquisition part acquires an analog amount brain electric signal and outputs the signal to the brain electric signal processing part. The brain electric signal processing part performs processing on the brain electric signal, calculates a driver fatigue degree and further transmits a result to the fatigue alarming and voice control on-vehicle electric appliance part. The fatigue alarming and voice control on-vehicle electric appliance part performs corresponding alarming according to the obtained result and further transmits the alarm to an electric appliance/equipment control module for controlling on-vehicle electric appliance/equipment. The emotion and fatigue detecting auxiliary driving system performs detection on a fatigue and emotion condition of a driver in a driving process and eliminates a potential safety hazard which is generated by the driving fatigue and road rage driving, thereby reducing generation rate of traffic accidents, realizing auxiliary voice control on equipment such as air conditioner, multimedia equipment and sunroof, and improving driving safety.
Owner:YANSHAN UNIV

Method for preparing graphene oxide modified composite phase-change microcapsule

The invention discloses a method for preparing graphene oxide modified composite phase-change microcapsules. The method specifically comprises the following steps: preparing a graphene oxide solid from graphite powder, concentrated sulfuric acid, sodium nitrate, potassium permanganate and deionized water; mixing the obtained graphene oxide solid with absolute ethyl alcohol and a silane coupling agent, and performing a reaction so as to obtain a double-bond modified functional graphene oxide solid; uniformly mixing the obtained functional graphene oxide solid with a phase-change material, a reaction monomer, a cross-linking agent, a reactive emulsifier and deionized water, and performing ultrasonic dispersion so as to form an oil-in-water type pre-emulsion; and putting the obtained oil-in-water type pre-emulsion into a hot water bath, continuously stirring, further adding an initiator solution, and performing a heat-preservation reaction, thereby obtaining the graphene oxide modified composite phase-change microcapsules. By adopting the method disclosed by the invention, composite phase-change microcapsules which are high in encapsulation efficiency, stable in property, good in heat conductivity, appropriate in phase-change temperature and relatively high in phase-change latent heat enthalpy can be prepared.
Owner:SHAANXI UNIV OF SCI & TECH

Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof

The invention relates to a wood fiber reinforced flame retardant foam composite plate and a preparation method thereof. The external layer of the composite plate is a wood panel, and the foam core plate in the internal layer is a wood fiber reinforced phenol formaldehyde foam material or a melamine modified formaldehyde foam material. The wood fiber is treated by a coupling agent. The invention further relates to a manufacturing method of the plate. The wood panel is adhered to the external layer panel of the foam core plate. The plate can be manufactured by performing lamination thermal composition on the materials by using an adhesive, and also can be manufactured by directly foaming between fixed dual-layer panels. The foam core plate uses wood fiber reinforced phenol formaldehyde foam or melamine modified formaldehyde foam material. The flame retardant performance can accord with the specified standard. The foam core plate is flame retardant and small in smoke amount, generates no harmful gas, and meets requirement of environmental friendliness, so that the composite plate has excellent sound absorption and heat insulation properties. The fiber reinforced foam base material has an excellent mechanical property.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Wide-range broadband current sensor base on tunnel magnetic resistance effect

The invention provides a wide-range broadband current sensor base on a tunnel magnetic resistance effect, and belongs to the field of sensing measurement. The sensor comprises an open magnet ring, current sensing chips, a compensation coil, a sampling resistor, an instrument amplifier, a zeroing circuit, a current output module and a power supply module; the current sensing chips include a high-sensitivity TMR sensing chip and a low-sensitivity TMR sensing chip, and are provided with two current measuring output points; the open magnet ring sleeves a current carrying lead, so that the current carrying lead penetrates through an inner hole of the open magnet ring; the compensation coil is wound around the open magnet ring; the high-sensitivity TMR sensing chip is arranged in an open air gap position of the open magnet ring; the low-sensitivity TMR sensing chip is arranged outside the open magnet ring; the high-sensitivity TMR sensing chip with other composition parts forms a closed loop structure; and the low-sensitivity TMR sensing chip, the instrument amplifier and the zeroing circuit form an open loop structure. The current sensor has the advantages of being wide in measuring range, wide in frequency band, small in size, high in precision, low in cost, free of intrusion and convenient to install and maintain.
Owner:TSINGHUA UNIV

Method for recycling phosphorus and fluorine in defluorination residues

The invention discloses a method for recycling phosphorus and fluorine in defluorination residues. The method comprises the following steps of: returning sulfuric acid and a certain amount of phosphoric acid to decompose the defluorination residues, extracting the phosphorus and the fluorine in the defluorination residues to generate bi-water or semi-water calcium sulfate crystals and a dilute phosphoric acid solution, performing solid-liquid separation, and thus obtaining dilute phosphoric acid and a byproduct, namely ardealite; concentrating the dilute phosphoric acid to obtain concentratedphosphoric acid, recycling overflow fluorine-containing gas in the phosphoric acid concentrating process and the acid preparing process to obtain fluorides such as fluosilicic acid and the like, or adding a defluorination agent into the dilute phosphoric acid, and recycling fluorine resources in a mode of the fluorides such as sodium fluosilicate and the like; and processing the obtained concentrated phosphoric acid by the conventional method, and thus obtaining phosphate products such as ammonium phosphate and the like. By the method, phosphorus and fluorine resources in the defluorination residues can be effectively recycled, wastes are made profitable, and the recycling value of the phosphorus and the fluorine in the defluorination residues is improved.
Owner:WENGFU (GRP) CO LTD

Silicon pressure transducer chip and method based on silicon-silicon linking and silicon-on-insulating layer

The invention relates to a pressure sensor chip based on silicon direction bonding and silicon on insulator and a manufacturing method thereof, and belongs to the field of sensor chips. The invention is characterized in that a shallow slot and a gas port on a supporting silicon wafer are formed through anisotropy corrosion, and appropriate shallow slot depth obtained by controlling the corrosion time can realize over pressure protection of parts. A silicon direct bonding technology bonds the supporting wafer and a reversed SOI wafer, realizes a beam-membrane structure on the SOI after lapping and polishing to improve the sensitivity and linearity of the parts; manufactures force sensing resistance elements on the processed beam; adopts the oxidation buried layer of the SOI to solve insulation and isolation of the sensing elements and elastic elements; and improves the long-termed reliability and adaptability under high temperature of the parts. The SOP high-sensitivity pressure sensor chip based on the bonding technology has the advantages of controllable process, excellent repeatability and high finished product rate.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Preparation method of nano zero-valent iron loaded hydrophilic porous biochar composite material

The invention discloses a preparation method of a nano zero-valent iron loaded hydrophilic porous biochar composite material, relates to preparation methods of hydrophilic porous biochar composite materials, and aims to solve the problems that an existing matrix loading metal particles is high cost, and nano zero-valent iron is unstable and prone to agglomeration and is low in performance when being applied to heavy metal adsorption. The method includes the steps of firstly, subjecting biomass to pyrolysis and molten salt activation; secondly, preparing a hydrophilic porous biochar material; thirdly, loading the nano zero-valent iron to obtain the nano zero-valent iron loaded hydrophilic porous biochar composite material. The specific surface area of the prepared nano zero-valent iron loaded hydrophilic porous biochar composite material can reach 603.4m<2>*g<-1>. Due to the fact that corn straw is agricultural waste which is low in cost and wide in source, the cost of the preparation method is lowered by using the pyrolysis product of the corn straw as the matrix material. The prepared nano zero-valent iron loaded hydrophilic porous biochar composite material is applicable to the field of environmental pollution remediation.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Natural high-iron albumen powder and preparation method thereof

The invention belongs to the field of functional foods, and in particular relates to natural high-iron albumen powder and a preparation method thereof. The method comprises the steps of soybean milk grinding, heated centrifugation, salting precipitation, centrifugal settling and freeze drying. The process comprises the following steps: weighing dry beans, pulping the dry beans by using PBS damping liquid with the quality 1-2 times of that of the dry beans and the concentration of 50mM after soaking the dry beans for 8-12 hours, and filtering and removing bean dregs, wherein polyvinylpyrrolidone in the damping liquid is 0.5-10 grams/liter; heating the pulp for 10-15 minutes in warm bath at 50-60 DEG C, cooling the pulp to room temperature, centrifugalizing at 4500-8000rpm for 10-20 minutes, removing starch and doped protein and taking supernatant liquid; dissolving magnesium chloride, dissolving sodium citrate after 30-120min, evenly mixing and stirring for 8-12 hours at 4 DEG C, wherein the concentration of the magnesium chloride and the concentration of the sodium citrate are respectively 200-600mM and 300-700mM; centrifugalizing at 0-7 DEG C with more than 10000rpm for 20-40 minutes, removing the supernatant liquid and grease and taking deposit parts; and carrying out freeze drying on the deposit parts.
Owner:CHINA AGRI UNIV

A cut rolled stem processing procedure

The invention discloses a cut rolled stem processing procedure, comprising the following processes: increasing temperature and humidity of stem, cutting the stem; increasing temperature of the cut rolled stem; expanding the cut rolled stem; cutting the cut rolled stem; storing. Increasing temperature and humidity of stem employs an apparatus for increasing temperature and humidity of stem, to rise the temperature of the stem from normal temperature to 60 DEG C, and to rise water ratio of the stem from 33% to 34-40%. Cutting the stem employs a stem cutter to cut the stem into pieces having thickness of 0.12 to 0.3mm. Increasing temperature of the cut rolled stem employs an apparatus for increasing temperature of the cut rolled stem, to rise the temperature of the cut pieces to 70 to 90 DEG C. Expanding the cut rolled stem is to rapidly dehydrate the pieces and enlarge volume at high temperature from 150 to 170 DEG C. Cutting the cut rolled stem is to cut the expanded pieces into the cut rolled stem having thickness of 0.8 to 1.2 mm. The cut rolled stem produced according to the invention has small fluctuation of quality and prominent improved quality stability. On the basis of maintaining steady aesthetic quality, the cut rolled stem is changed from piece shape into filament shape, which enhances useful value of the cut rolled stem, lessens formulation cost of product and offers efficient means for coking reduction of the product.
Owner:SHANGHAI TOBACCO GRP CO LTD

Comprehensive utilization method of abodominal organs of grass carp

The invention relates to a comprehensive utilization method for grass carp harslet, which belongs to the technical field of aquatic product processing. The method mainly comprises the following steps: the grass carp harslet is washed to be clean, subjected to deordorization treatment by mixed solution of acetic acid, sodium chloride and sodium sulfite, smashed, subjected to trypsin enzymolysis and centrifugation, and separated to obtain upper coarse fish oil; refined fish oil can be prepared by refining coarse fish oil; and lower enzymatic hydrolysate is subjected to vacuum filtration, secondary debitterizing and deordorization by active carbon, and spray drying to obtain fish protein polypeptide powder and amino acid powder, wherein the polypeptide powder mainly contains dipeptide and tripeptide, is rich in a plurality of mineral elements, is easy to be digested and absorbed by the intestinal tract, and is high-quality nutriment; and the amino acid powder contains complete varieties of amino acid, and can be an additive of various amino acid nutrition-enriching products. The comprehensive utilization method has mild technological conditions, has extraction efficiency as high as 90 to 95 percent, fully utilizes harslet waste during processing grass carp, changes waste into valuable, and greatly improves economic benefit.
Owner:JIANGNAN UNIV +1

System and method for sharing cross-regional medical image information

The invention discloses a system and method for sharing cross-regional medical image information. The system is mainly composed of three major components as follows: a regional medical image sharing platform, a short message authentication system and a medical image information storage device, wherein the regional medical image information sharing platform is composed of a document registration library, a distributed document storage library, a patient cross-indexing manager, an audit trail and node verification manager and a current medical mechanism PACS (Picture Archiving and Communication System) all of which are built in a special network; and an agent server is used for the calling outside the region. The medical image information storage device mainly comprises shared document submission collections, shared documents, key images, a shared document editor, a digital certificate and an image browsing software. The short message authentication system is used for guaranteeing legality of reading the medical image information outside the region. The system and method for sharing cross-regional medical image information, disclosed by the invention, have the advantages of avoiding printing of check reports and photographic films, saving examination cost for patients and avoiding repeated examination as the medical image information can be carried by a patient per se to be used in other medical mechanisms.
Owner:HANGZHOU DIANZI UNIV
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