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2251results about How to "Improve radiation resistance" patented technology

Reconfigurable data path processor

A reconfigurable data path processor comprises a plurality of independent processing elements. Each of the processing elements advantageously comprising an identical architecture. Each processing element comprises a plurality of data processing means for generating a potential output. Each processor is also capable of through-putting an input as a potential output with little or no processing. Each processing element comprises a conditional multiplexer having a first conditional multiplexer input, a second conditional multiplexer input and a conditional multiplexer output. A first potential output value is transmitted to the first conditional multiplexer input, and a second potential output value is transmitted to the second conditional multiplexer output. The conditional multiplexer couples either the first conditional multiplexer input or the second conditional multiplexer input to the conditional multiplexer output, according to an output control command. The output control command is generated by processing a set of arithmetic status-bits through a logical mask. The conditional multiplexer output is coupled to a first processing element output. A first set of arithmetic bits are generated according to the processing of the first processable value. A second set of arithmetic bits may be generated from a second processing operation. The selection of the arithmetic status-bits is performed by an arithmetic-status bit multiplexer selects the desired set of arithmetic status bits from among the first and second set of arithmetic status bits. The conditional multiplexer evaluates the select arithmetic status bits according to logical mask defining an algorithm for evaluating the arithmetic status bits.
Owner:STC UNM +1

Aroniamelanocarpa fruit wine and brewing method thereof

The invention relates to an aroniamelanocarpa fruit wine and a brewing method thereof. The fruit of aroniamelanocarpa is taken as raw material and is made into fruit juice, fruit wine microzyme is selected for use and put into the fruit juice according to the proportion being 5-10% of the weight of the fruit juice, and the aroniamelanocarpa fruit wine is brewed with the alcohol content of 5-13% (v/v) and the total sugar content of 4.0-80.0g/L. The brewing technique of the invention comprises preparing the fruit juice, inoculation and fermentation, aging and store maturity, purifying wine body as well as filtration and sterilization, and the most advanced fermenting and purifying technique can be adopted by the production. The product of the invention has unique flavor, slightly acerbic and fresh taste, mellow mouthfeel, pleasing aroma and wide applicable people. The fruit wine contains multiple nutritional functional components such as anthocyanin, flavone, polyphenol active substance, vitamins antioxidant, mineral composition, polyoses, organic acid and the like which are rich in the fruit of aroniamelanocarpa, and has good effects of oxidation resistance, ageing prevention, blood pressure regulation, vessel relaxing, blood-fat reduction, anti-inflammation and detoxification, radiation resistance, etc.
Owner:辽宁省干旱地区造林研究所

Halogen-free flame retardant sheath material for nuclear cable, cable sheath, preparation method and application

The invention discloses a halogen-free flame retardant sheath material for a nuclear cable, a cable sheath, and a preparation method and an application of the cable sheath. The halogen-free flame retardant sheath material for the nuclear cable comprises the following raw materials: 100 parts of a polymer base material comprising ethylene vinyl acetate copolymer and ethylene methyl methacrylate copolymer, 100-140 parts of an inorganic fire retardant comprising magnesium oxide, 15-25 parts of phenoxycycloposphazene; 15-30 parts of nitrogen fire retardant comprising melamine cyanurate, 4-8 parts of a compound antioxidant comprising a main antioxidant, an auxiliary antioxidant and an ultraviolet light absorber, 5-15 parts of an anti-radiation agent comprising high phenyl siloxane rubber and an anti-radiation agent A, and 6-12 parts of a processing aid comprising a cross-linking sensitizing agent and a lubricant, wherein the anti-radiation agent A is boron carbide and/or boron nitride. The halogen-free sheath material for the nuclear cable disclosed by the invention is good in superior performance, good fire retardant performance, and stable anti-radiation performance, electrical performance and mechanical performance.
Owner:青岛中科汉缆高分子材料有限公司

Flame-retardant heat-resistance polyurethane resin and preparation method of aqueous emulsion of polyurethane resin

The invention belongs to the field of high molecular materials and in particular relates to flame-retardant heat-resistance polyurethane resin. The resin structure contains a residue structure obtained after reaction of heterocyclic polyol A, flame-retardant polyol and polyisocyanate, and the resin is obtained by adding heterocyclic polyol B as a crosslinking agent at the post phase of polyurethane synthesis. The flame-retardant heat-resistance polyurethane resin and an aqueous emulsion thereof are prepared by carrying out a reaction on heterocyclic polyol, polyester or polyester polyol, flame-retardant polyol, polyisocyanate and the like. As the heterocyclic structure is introduced in a polyurethane molecule chain, except for the characteristics of the common polyurethane paint coating, the flame-retardant heat-resistant polyurethane resin further has excellent heat resistance, corrosion resistance and high mechanical strength and mechanism performance and is high-grade flame-retardant polyurethane aqueous resin. The defects of the existing polyurethane coating in terms of heat resistance and mechanical property are overcome; and the prepared flame-retardant heat-resistance polyurethane resin has the advantages of intrinsic flame retardance, high heat resistance, large hardness, excellent mechanical property and high cost performance, is convenient to use and can be dried at low temperature.
Owner:DALIAN UNIV OF TECH

Hollow photonic crystal fiber gyroscope

The invention relates to a hollow photonic crystal optical fiber gyro, which is characterized in that a hollow optical fiber resonant ring coiled by hollow photonic crystal optical fibers is adopted; laser light emitted by a tunable narrow linewidth laser is divided into two equal parts by an integrated optical modulator; the two parts enter an optical coupling module respectively through two polarization-maintaining fiber couplers, then are output from the optical coupling module and injected into the hollow optical fiber resonant ring; a convex spherical mirror adopted by the optical coupling module has high reflectivity and transmissivity, and a resonant cavity for the gyro is formed between the optical coupling module and the hollow optical fiber resonant ring to realize input and output of light; a small part of harmonic light penetrates the resonant cavity and returns to two detectors respectively through two polarization-maintaining fiber couplers, frequency difference of the harmonic light in the clockwise / anticlockwise direction is measured according to signals detected by the two detectors, and the angular speed of a carrier can be obtained through a testing circuit, so as to realize the function of a gyroscopic instrument. The optical fiber gyro has the advantages of small volume, convenient realization, high reliability, high radiation-resistant capacity and suitability of space application.
Owner:BEIHANG UNIV

1E-level K1-type shrinkable tube used in nuclear power station and preparation method thereof

The invention relates to a 1E-level K1-type shrinkable tube used in a nuclear power station, which comprises the following components by weight: 40 to 60 parts of base resin, 40 to 60 parts of hexyl-propyl rubber, 30 to 60 parts of flame retardant, 5 to 20 parts of antiradiation agent, 4 to 12 parts of antioxidizer, 2 to 5 parts of lubricant, and 3 to 8 parts of color masterbatch. The preparationmethod of the 1E-level K1-type shrinkable tube used in the nuclear power station comprises the following steps of: taking all the components by weight, carrying out mixed granulation by banburying ormixed granulation by a parallel double-screw extruder, then using a single-screw extruder for extrusion to form the tube, and carrying out radiation cross linking of cobalt 60 or electron accelerator50-180KGy to the tube, wherein the tube after the radiation cross linking expands by 2 to 6 times at the temperature of 90 to 150 DEG C. The shrinkable tube reaches and far exceeds the performance requirement of the 1E-level K1-type shrinkable tube used in the nuclear power station. The 1E-level K1-type shrinkable tube used in the nuclear power station has good flame retardant properties, can passV W-1 combustion test; has excellent heat-proof aging property, with the tensile strength and elongation at break of the product far stronger than the performance requirement; and outstanding intenseradiation-resistant function, and can pass AC withstand voltage test.
Owner:CHANGYUAN ELECTRONICS DONGGUAN +1

Metal and plastic composite self-lubricating material and preparation method thereof

The invention discloses a metal and plastic composite self-lubricating material and a preparation method thereof. The metal and plastic composite self-lubricating material comprises a metal layer, a plastic binding layer and a plastic working layer, wherein the plastic binding layer binds the metal layer and the plastic working layer together through a chemical bond of a molecule; one part of theplastic working layer is embedded in a drop pit of the metal layer; the plastic working layer includes the material components according to the mass percent as follows: 60-90 of polyether-ether-ketone, 5-20 of polyfluortetraethylene, 7 of graphite, 1 of MoS2 and 5-10 of aluminium oxide; and the plastic binding layer includes the material components according to the mass percent as follows: 70-90 of polyether-ether-ketone, 5-20 of polyphenyl thioether and 5-10 of aluminium oxide. By adding the plastic binding layer between the metal layer and the plastic working layer, the invention further improves the binding strength of metal and plastic, has favorable heat resistance and resistance to chemical corrosion, no environment pollution, low noise and energy saving; in addition, the usage temperature is -60 DEG C to 250 DEG C, the friction coefficient is 0.08-0.32 and the wear rate is 0.8-3.5*10<-6>mm<3>/N. m.
Owner:JIANGSU UNIV

Oxide dispersion strengthened (ODS) steel preparing method and martensitic steel

The invention provides an oxide dispersion strengthened (ODS) steel preparing method and martensitic steel. The oxide dispersion strengthened steel preparing method includes the steps that iron oxides are added into a casting mould, a proper number of rare earth elements are added into a fully deoxidized molten steel, the mixture is rapidly cast into the casting mould, and the ODS steel is obtained through the reaction between the rare earth elements and the iron oxides. The martensitic steel is obtained by performing hot forging, hot rolling, hot machining and hot treatment on the ODS steel prepared through the method. The ODS steel prepared through the method is high in hardenability, the residual austenitic content is very low, and a full martensite structure can be obtained. W, V and Ta are strong carbide forming elements and have a remarkable strengthening effect, and the mechanical property is obviously higher than that of steel prepared through a traditional smelting technology. Meanwhile, the ductile-brittle transition temperature (DBTT) value is minus 80 DEG C and minus 90 DEG C, the good toughness of the traditional smelting technology is well inherited, and meanwhile good anti-radiation performance is achieved. By means of the ODS steel preparing method, the demands for preparing ODS steel in batches with stability, short process and low cost can be met.
Owner:UNIV OF SCI & TECH BEIJING

Non-punch-through deep trench IGBT with field stop structure and manufacturing method thereof

The invention discloses a non-punch-through deep trench IGBT with a field stop structure and a manufacturing method thereof. The IGBT is equivalent to one NMOS field-effect tube driving one PNP bipolar transistor or one PMOS field-effect tube driving one NPN bipolar transistor. The NMOS tube or the PMOS tube in the invention realizes a vertical gate and a vertical trench through a deep trench technology and a high voltage-resistant trench gate technology is adopted; the NMOS tube or the PMOS tube and the PNP tube or the NPN tube are directly manufactured on a polished wafer to form a non-punch-through IGBT structure; and a field stop layer with the same doping type as a base region and with doping concentration higher than the base region is formed in the base region of the PNP tube or the NPN tube at a position close to a collector region through ion implantation or diffusion. The invention has the advantages that the cost of the manufacturing method is low and the implementation is easy; and the area of the manufactured IGBT is small, the switching loss is small, the short-circuit tolerance is high, the anti-electromagnetic interference capacity and the radiation resistance are enhanced and the like. Thereby, the demand of the market on the high quality of IGBT products is satisfied.
Owner:TIANJIN HUANXIN TECH DEV

Preparation method for tungsten trioxide nanowire electrochromic film

The invention discloses a preparation method for a tungsten trioxide nanowire electrochromic film, which includes the following steps: (Step 1) tungstic acid and hydrogen peroxide solution are mixed, and after water is added for dilution, stirring is carried out for aging, so that sol is obtained; (Step 2) the sol is applied on a conductive glass, and after annealing treatment, a conductive glass with a WO3 seed crystal layer is obtained; (Step 3) tungstate and water are mixed, pH is regulated to strong acidity, ammonium sulfate and alcohol are then added, and after stirring, tungsten precursor solution is obtained; (Step 4) the conductive glass with the WO3 seed crystal layer in the step 2 is immersed in the tungsten precursor solution in step 3 to carry out hydrothermal reaction, and thereby the tungsten trioxide nanowire electrochromic film is obtained. The prepared WO3 nanowire electrochromic film has an supramaximal optical modulation range and a high electrochromic rate; when applied as an electrochromic smart window, the tungsten trioxide nanowire electrochromic film can greatly reduce solar radiation, and can also play the role of saving energy and regulating temperature; moreover, the process is simple and controllable, the cost is low, and the preparation method is suitable for industrialized application.
Owner:ZHEJIANG UNIV
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