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417results about How to "Wide range of usability" patented technology

Peach gum polysaccharide, its extractive, preparation method and application thereof

The invention discloses a peach gum polysaccharide, comprising 70-98 wt% of neutral total sugar and no nucileic acid, protein, tannin, dextrin, starch and other impurities, wherein, the content of glucuronic acid in the neutral total sugar accounts for 5-30 % of the content of the peach gum polysaccharide, the average molecular weight of the peach gum polysaccharide is more than 3000 dalton, and an aqueous solution of the peach gum polysaccharide has a dynmaic viscosity of 0.5-4.0 pa. s, a pH value of 4.0-6.5, and a specific rotation defined in the description. The invention also provides an extractive of the peach gum polysaccharide, and a preparation method of the peach gum polysaccharide and the extractive, and an application as a stabilizing agent. The preparation method of the peach gum polysaccharide and the extractive can ensure that various physicochemical properties of the peach gum polysaccharide satisfy the requirements of use in food, medicines, cosmetics, and light industry field, keeps natural state of the peach gum polysaccharide, has no effluence on the product properties of the peach gum polysaccharide, ensures the safety, stability, validity and controllability of the product, and has a wide commercial prospect and application future.
Owner:SHANGHAI HUIWEN BIO TECH

Method for preparing braided tube/polymer composite hollow fibrous membrane by thermal induced method

ActiveCN102553463AReduce binding resistanceExtended service lifeSemi-permeable membranesFiberHigh flux
The invention discloses a method for preparing braided tube / polymer composite hollow fibrous membrane by a thermal induced method. The method comprises the following steps of: preparing membrane-casting liquid 1 and membrane-casting liquid 2; dipping a polyethylene glycol terephthalate (PET) braided tube in a boiling NaOH solution with certain concentration to remove oil stains remained on the braided tube; modifying the braided tube of a supporting layer with a modifier; coating the high-molecular polymer membrane-casting liquid 1 onto the filament surface of the braided tube by a one-time dipping and one-time rolling method, thermoforming the round tube, and curing the tube in a gel bath; uniformly coating the membrane-casting liquid 2 on the outer surface of the membrane-laminated fibrous braided tube with spinning equipment, and curing composite filaments in cooling liquid; and displacing a diluent from a formed membrane with an extracting agent, and rinsing the membrane filamentsto obtain the braided tube / polymer composite hollow fibrous membrane. The braided tube / polymer composite hollow fibrous membrane prepared by the method has the characteristics of high flux, strength and interception and high-pressure backwash resistance; and moreover, the supporting layer and the coating layer are difficult to separate.
Owner:SUZHOU CNPT SOURCETECH ENVIRONMENTAL TECH

Evaporative cooling and traditional refrigeration combined air conditioning device and air conditioning method thereof

The invention relates to the technical field of heating ventilation air conditionings and energy conservation and provides an evaporative cooling and traditional refrigeration combined air conditioning device and an air conditioning method thereof. The air conditioning device comprises an evaporative cooling device and an air handling device, wherein the evaporative cooling device comprises a cooling device housing, a direct evaporation refrigeration filler and a surface type heat exchange device; an air inlet end and an air exhaust outlet end are arranged on the cooling device housing; the direct evaporation refrigeration filler is internally mounted in the cooling device housing; a sprinkling device is arranged above the direct evaporation refrigeration filler. The air conditioning device provided by the invention is reasonable in structure and convenient to use; since the evaporative cooling device and the air handling device are adopted to collaboratively treat indoor air return, the problem of difficulty in air filtration is solved and the solution of the ventilation air-conditioning system under climatic conditions throughout the year is achieved; as the air conditioning device can operate and treat indoor air all through the year in the region under any climatic condition, the applied range and field of employment become wider; the air-conditioning device has the characteristics of safety, environmental protection, simplicity, convenience and efficiency.
Owner:新疆绿色使者干空气能源有限公司

Method for determining lignocelluloses component content of plant straw

The invention provides a method for determining the lignocelluloses component content of plant straw, and relates to the field of agronomy. The method particularly comprises the following steps: firstly, selecting the plant straw of a tested material for pretreatment; then carrying out two-step acidolysis respectively by adopting 72% concentrated sulfuric acid and 4% dilute sulfuric acid, and degrading and separating a lignocelluloses component in the plant straw; then accurately determining the content of cellulose and semi-cellulose by adopting an HPLC method, determining the content of acid-soluble lignin in a degraded liquid by adopting a UV method, and determining the content of acid-insoluble lignin by adopting a firing method. The method remedies the defects of insufficient pretreatment, extensive treatment process and inaccurate quantitative determination method caused by adopting a traditional method, gets a new breakthrough of determining the content of semi-fibers of lignin of the plant straw by adopting the HPLC method, can be used for accurately measuring the content of the lignocelluloses component in various plant straw, is accurate and reliable in result, and has wide reference and use values in the fields of agricultural crop production, biochemical analysis, biomass novel energy utilization and the like.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Wet desulfurization wastewater zero emission process and device thereof

The invention discloses a wet desulfurization wastewater zero emission process and a device thereof; desulfurization wastewater behind a gypsum dewatering device is collected and enters a flocculation reactor, the desulfurization wastewater is softened, flocculated and clarified, and sludge is sent to a sludge processing device for dewatering; the clarified water after separation is desalted, the desalted water is reused in a desulfurization system, concentrated water is sent to an evaporation crystallization device, waste heat of a boiler flue gas is used for evaporation crystallization, and high-quality water steam is obtained after evaporation; an evaporated crystallized substance and the water steam are subjected to gas-solid separation, the high-quality water steam is sent into a desulfurization absorption tower for recycling, and the crystallized substance is discharged together with fly ash. The high-quality water steam can be completely recycled in the desulfurization adsorption tower; suspended solids, dissolved solids, heavy metals, high salt, and Ca<2+>, Mg<2+>, Cl<+> and F<-> ions and other substances are cured, separated and collected, the purpose of complete recycling of the desulfurization wastewater is achieved, and zero emissions of the desulfurization wastewater can be achieved. In addition, the method has no effect on other systems of a power plant, and has the advantages of high practicability, low investment, and wide popularization and use value.
Owner:王辛平

Novel orthogonal-polarization dual-wavelength laser

ActiveCN102195229ABalanced orthogonally polarized dual-wavelength laser outputReduce volumeActive medium materialOptical polarizationDual wavelength laser
The invention discloses a novel orthogonal-polarization dual-wavelength laser which belongs to a novel laser and is a dual-wavelength continuous pulse laser or a dual-wavelength repetition-rate pulse laser realizing mutual orthogonality of a horizontal polarized wavelength 1 and a vertical polarized wavelength 2 in polarization directions by adopting an anisotropic neodymium-doped laser crystal with a multichannel transition property. The laser device comprises the anisotropic neodymium-doped laser crystal, such as Nd:YAlO3, Nd:YVO4, Nd:YLF or Nd:GdVO4 and other crystals, a pumping system and an optical resonant cavity, wherein the pumping system is used for pumping the laser crystal to enable active ions (Nd<3+> ions) in the laser crystal to form distribution for population inversion; the optical resonant cavity is used for the resonation of dual-wavelength radiation of the horizontal polarized wavelength 1 and the vertical polarized wavelength 2 of the active ions in transmission emission; and finally, orthogonal-polarization dual-wavelength laser of the horizontal polarized wavelength 1 and the vertical polarized wavelength 2 are simultaneously outputted in the same light path both by the same output coupling mirror. The orthogonal-polarization dual-wavelength laser provides a novel laser source and a novel technical approach to acquisition of high-power, high-coherence or difference-frequency (THz radiation waves) laser, can broaden the application of dual-wavelength laser, and has a broad application prospect and use values in the fields of non-linearity frequency conversion, fiber-optic communication and the like.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Adhesive solid lubricating coating and preparation method thereof as well as self-lubricating joint bearing and preparation method thereof

The invention discloses an adhesive solid lubricating coating and a preparation method thereof as well as a self-lubricating joint bearing and a preparation method thereof, and belongs to the technical field of solid lubricants. The coating consists of epoxy resin, a curing agent, polytetrafluoroethylene, molybdenum disulfide and a fluorocarbon surfactant by compounding, wherein the adopted fluorocarbon surfactant is a non-ionic surfactant, has excellent wetting property and leveling property, and can efficiently reduce the surface tension of the coating to greatly improve the cohesive property of the coating; and the epoxy resin with excellent adhesive strength and mechanical strength is adopted as a bonding agent to ensure that mixed powder of molybdenum disulfide and polytetrafluoroethylene is firmly adhered to a friction surface to form a solid lubricating coating layer which has good wear resistance, corrosion resistance, self-lubricating property and high temperature resistance. The self-lubricating joint bearing prepared by the method disclosed by the invention is relatively low in friction coefficient, wearing capacity and friction temperature, so that the tribological property of the joint bearing is greatly improved. The preparation methods disclosed by the invention are simple to operate, low in cost and suitable for large-scale industrial production.
Owner:HENAN UNIV OF SCI & TECH

Preparation method of efficient calcium-based sepiolite phosphorus adsorbent and application thereof

The invention relates to a preparation method of an efficient calcium-based sepiolite phosphorus adsorbent. The preparation method comprises the following steps of mechanically pulverizing natural calcium-enriched sepiolite ore into powder, drying the powder at constant temperature, and then directly heating and modifying the powder to obtain the calcium-based sepiolite phosphorus adsorbent. According to the preparation method provided by the invention, inertia calcium in the natural calcium-enriched sepiolite is activated through a heating and modification method, a part of active calcium enters into a sepiolite lattice system, and the alcium-based sepiolite adsorbent having high absorption capacity to phosphorus is generated by the original ore through recombination and reaction. The calcium-based sepiolite phosphorus adsorbent provided by the invention is used for eliminating phosphorus in polluted water or bottom sediment, and is capable of efficiently and rapidly eliminating phosphate in the water and efficiently translating labile phosphorus in the polluted bottom sediment into inert calcium phosphorus, thereby achieving the aim of controlling nutrition enrichment of lakes. The calcium-based sepiolite phosphorus adsorbent prepared by the preparation method has the advantages of wide raw material distribution, low cost, simple preparation process, obvious phosphorus fixation effect, and wide application prospect and use value.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY

Method for detecting clogging of subsurface flow constructed wetland

The invention discloses a method for detecting clogging of a subsurface flow constructed wetland, and is mainly used for detecting clogging of a subsurface flow constructed wetland. In the invention, based on the characteristic that deposits contained in a subsurface flow wetland clogged region can enhance the water retention capability, by means of the characteristics that after the moisture of a subsurface flow wetland is drained, the water content of a wetland bed increases with the increase of the clogging degree and the apparent resistivity of the wetland bed accordingly decreases with the increase of the clogging degree, the apparent resistivity of a determined region is measured and calculated by a Wenner method resistivity measurement technology; the clogged region is positioned and the clogging degree is judged according to the magnitude of the apparent resistivity. According to the invention, the clogged region can be accurately positioned, and the relative clogging degree of the clogged region can be judged, thereby providing technical support for sustainable operation of the subsurface flow constructed wetland. The method disclosed by the invention has the advantages of high precision, low damage, simple operation, low implementation cost and the like.
Owner:SHANDONG UNIV

Zirconia honeycomb ceramic body

The invention discloses a zirconia honeycomb ceramic body which comprises the raw materials as follows: ceramic raw material, alpha-Al2O3 powder, clay, Mgo, organic cellulose, a binder and ZrO2 powder. The raw materials are mixed evenly by weight percentage and then the binder and moderate amount of water are added, and ball milling, mixed milling and staleness are carried out to prepare pug; the pug is put into a vacuum pugmill for pug milling, and then extrusion molding wet honeycomb ceramic body is put into a far-infrared kiln for drying and shaping into a dry blank; the honeycomb ceramic body is calcined at 1500 DEG C to 1700 DEG C and then cooled and taken out from the kiln. The zirconia honeycomb ceramic body is not only applicable to be used under high temperature environment being over 1500 DEG C in a heating kiln; besides, the heat exchange of the heating kiln is fast and even, thus saving the fuel of the regenerative heating kiln by about 40 percent to 70 percent, promoting yield by more than 15 percent, reducing the emission of NOX gas to be lower than 100ppm and resulting in lower than 150 DEG C gas emission temperature; therefore, the zirconia honeycomb ceramic body greatly improves the burning effect of the regenerative heating kiln, saves fuel and energy, reduces the emission of harmful gases, prolongs the service life of the regenerative heating kiln, improves environment and promotes both economic and social benefits.
Owner:朱根源

Main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device

The invention discloses a main-mirror and three-mirror integrated coaxial three-reflector infrared optical imaging device, and belongs to the technical field of infrared optical imaging. The device solves technical problems that a conventional spatial infrared reflecting-type optical device is large in size and weight. A reflecting main mirror and three reflectors of the device are of an integrated structure, and are installed in a main mirror seat through a main mirror core shaft. A secondary mirror seat is fixedly connected with the main mirror seat through a truss assembly, and a reflectingsecondary mirror is fixed on the secondary mirror seat through a secondary mirror core shaft. A secondary mirror shading cover is embedded in the truss assembly. A lens cone is connected with the main mirror seat, and a detector support is connected to an outer side of the main mirror seat. The image plane of a detector is installed on the detector support. The device employs a main-mirror and three-mirror integrated optical integrated imaging system design, and forms a super-compact coaxial three-reflector infrared optical imaging device. The device reduces the size, weight and cost of a spatial infrared optical system under the same focal length, increases the optimization variables of the system, and can achieve the better correction of aberration.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Method, device and system of server fan speed regulation

The invention provides a method, device and a system of server fan speed regulation.The method comprising the following steps that parameters of server fan speed regulation of a server is acquired andinitialized; a test is started, and the log data of the speed regulation control of a fan is acquired and storedaccording to a preset time interval; according to the log data, the rotation speed change of the fan and the temperature change of acontrolled device on the server are calculated; and according to the rotation speed change of the fan, if the temperature change of the controlled device isdetected to be larger than atarget threshold value, the data values corresponding to the parameters are adjusted according to the sensitivity, the log data and the parameters output in the last timeuntil the temperature change of the controlled device is smaller than or equal to the target threshold value. The problem that a traditional PID setting process depends on experience is solved, automatic analysis and high-efficiency treatment of PID fan speed regulation are realized, and the setting process is present in informational and graphical modes, the visual performance of thePID fan speedregulation setting is improved, so that the setting efficiency is improved, the method, the device and the system can be adapted to different servers, and havewide usability.
Owner:XIAN YIPU COMM TECH
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