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62 results about "Radioresistance" patented technology

Radioresistance is the level of ionizing radiation that organisms are able to withstand.

Method for preparing carbon microsphere adsorbent under catalysis of metal salt with low-temperature hydrothermal method

The invention discloses a method for preparing a carbon microsphere adsorbent under catalysis of metal salt with a low-temperature hydrothermal method. The method comprises steps as follows: (1) a biomass solution with the concentration being 2wt%-20wt% and a metal salt solution with the concentration being 0.5wt%-2wt% are prepared, then mixed in the mass ratio being (2-5):1 and stirred for 5-10 min, and a reaction solution is obtained; (2) the reaction solution is transferred to a stainless steel reaction kettle, the volume of the reaction solution accounts for 60%-80% of that of the reaction kettle, the reaction solution is heated to 100-160 DEG C at a certain heating speed, reacts at the constant temperature for 8-20 hours and is naturally cooled, separated and dried in vacuum, and hydrothermal carbon microspheres are obtained; (3) the hydrothermal carbon microspheres are calcined and carbonized at the air atmosphere, and the carbon microsphere adsorbent is obtained. The preparation process of the adsorbent is simple, energy consumption is low, the reaction time is shortened to be within 24 hours, and the adsorbent has high adsorption performance for part of positive ions, particularly, uranyl ions, has excellent radioresistance, thermal stability and acid stability and can be widely used for treatment of radioactive wastewater.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Infrared-ultraviolet multi-color detector and production process thereof

The invention discloses an infrared-ultraviolet multicolor detector and a preparation method thereof. The detector comprises a substrate, a multicolor detector table which is formed by orderly growing an AlN buffer layer, an n-type GaN / AlGaN emission layer, an undoped AlGaN barrier layer, an n-type AlGaN window contact layer, an undoped AlGaN absorbing layer, a p-type AlGaN limiting window layer and a p-type GaN contact layer on the substrate; an n-type bottom contact electrode is arranged on the n-type GaN / AlGaN emission layer, an n-type intermediate contact electrode is arranged on the n-type AlGaN window contact layer, and a p-type top contact electrode is arranged on the p-type GaN contact layer. The detector has the advantages of simple structure, easy growth, small volume, being capable of realizing triband response and the like. The detector simplifies the growth process and the processing technology of the device structure, improves the radioresistance capacity of the device, reduces the device volume and lowers the cost. The detector has significant application prospects in the fields of target imaging, alarming, monitoring and the like.
Owner:THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP

Overball inspection and external inspecting system for loading-unloading system of ball-bed piled fuel component

The ball bed piles the fuel element loading and unloading systematic ball examination method and outside installs the type examination system to belong to the ball bed type reactor fuel part examination area of technology. Is by installs has installed the type examination system outside ball pipeline outside, examines two examination coils using the distant field turbulent flow principle the voltage, and carries on the demodulation keleck and phase demodulation processing separately to this two examination coil voltage, obtains contains has had ball information demodulation keleck output voltage UOA and phase demodulation output voltage UOP, then carries on to this voltage UOA and UOP further analyzes and processing, thus judges in the ball pipeline whether has the ball process. This invention also proposed outside installs the type examination system. Uses this invention, the installment and the service does not need to destroy the ball pipeline, guaranteed installs the ex-denning pipeline the integrity and high-pressured gas tightness, reduces the radiation pollution; The sensor coil, the skeleton and other appendices with the radioactive fuel ball contact, are directly low to the entire examination sensor material radioresistance request, are advantageous in enhance the sensor the service life.
Owner:TSINGHUA UNIV

MN and hypoxia

The MN / CA IX protein is identified herein as a hypoxia marker. The MN / CA9 gene promoter is characterized, and the location of the HIF-1 binding site within the MN / CA9 promoter is identified. Further, the hypoxia inducibility of the MN / CA9 gene and the uses of such inducibility are disclosed. In one aspect, the invention provides diagnostic / prognostic tools for determining the presence of hypoxia in a tissue in a vertebrate, preferably a human, and for measuring the relative degree of hypoxia in said vertebrate. In another aspect, the invention provides methods using tumor biopsies to predict the radioresistance of a preneoplastic / neoplastic tissue in a vertebrate subject, preferably a human patient, for diseases in which MN / CA IX levels can be used to indicate radiobiologically relevant tumor hypoxia. Such predictive methods can be used as an aid in patient therapy selection.
Owner:BIOMEDICAL RES CENT OF THE SLOVAK ACADEMY OF SCI +1

Water-based radon-proof interior wall coating

The invention discloses a water-based radon-proof interior wall coating, which consists of a component A and a component B. The component A comprises 12 to 20 mass parts of water, 20 to 25 mass parts of pigment, 50 to 60 mass parts of water-based epoxy resin emulsion and 0 to 2 mass parts of water-based color paste; and the component B comprises 20 to 30 mass parts of water-based curing agent, 50 to 60 mass parts of filler and 15 to 25 mass parts of water. The water-based radon-proof interior wall coating can form a dense physical paint film. The paint film has high radioresistance, and can effectively avoid the harm of radon in the wall to human bodies. The coating has the advantages of scrub resistance and stain resistance. Various colors of the coatings can be obtained by adding different color paste and adjusting the using amount of raw materials; and decorative effects such as highlighting, mercerizing, mattifying and the like can be obtained as required to meet different requirements of interior decoration. The coating can be stably stored for a long time so as to reduce the influence of transportation and storage on product quality and ensure the reliability of the product quality.
Owner:GUANGZHOU LEOBO PAINT TECH

Multifunctional nano energy particles

The invention relates to a daily health care product, namely multifunctional nano energy particles. The invention is characterized in that nano materials, natural mineral materials and carbon powder are added to high molecular materials, and the high molecular materials are compounded by a high performance and functionalizing nano technology and are combined with germanium particles and magnetic stripes. Therefore, the obtained nano energy particles are a daily health care product which skillfully combines eight functions of far infrared emission, antibiosis, negative ion release, magnetotherapy, radioresistance, antistatic behavior, air purification and beautification together. The multifunctional nano energy particles can be put and sewed on a pillow, a waist support, a knee shield, a wrist bandage, a mattress and other home textile products, clothes, commodities and the like, and the products can be worn and placed according to different health conditions of individuals combined with human body point therapy in the traditional Chinese medicine, thus having the characteristics of simplicity, convenience, flexibility, high efficiency, safety, wide applicable range of people and the like. The products can achieve the effects on changing microcirculation of a human body, adjusting internal secretion and nervous system, dredging the channels, promoting blood circulation and eliminating blood stasis, diminishing inflammation and alleviating pain, allaying tiredness, improving sleeping, improving the immunity of a human body, beautifying skin, supplementing magnetism, supplementing energy and preventing disease, and have an acupuncture and moxibustion effect without using a needle.
Owner:NINGBO FREE TRADE ZONE LONGHAO NEW MATERIAL TECH

SOI pressure-sensitive chip based on sacrificial layer technology, and manufacturing method thereof

The invention discloses an SOI pressure-sensitive chip based on a sacrificial layer technology, and a manufacturing method thereof. The chip is manufactured by use of a monocrystalline silicon thin film (SOI) material on an insulation layer and comprises a monocrystalline silicon substrate of SOI, a cavity formed by taking an SOI silicon dioxide insulation layer as a sacrificial layer, four strain resistors formed by etching isolation grooves in the monocrystalline silicon thin film, and a metal lead wire. The silicon nitride insulation protective layer on and under the metal lead wire, an outermost polysilicon structure layer and the monocrystalline silicon thin film form a sensitive chip pressure-sensing film, and eight square holes are etched at the edge of the pressure-sensing film for corroding the silicon dioxide sacrificial layer. The four strain resistors are connected to form a Wheatstone bridge through the metal lead wire for converting pressure signals into voltage signals for output. The prepared SOI pressure-sensitive chip based on the sacrificial layer technology has the advantages of high sensing sensitivity, good repeatability and stability, high reliability, high-temperature resistance, radioresistance, compatibility between a manufacturing technology and an integrated circuit technology, and the like.
Owner:SHENYANG POLYTECHNIC UNIV

CMOS Device for Reducing Charge Sharing Effect and Fabrication Method Thereof

The present invention discloses a CMOS device of reducing charge sharing effect and a fabrication method thereof. The present invention has an additional isolation for trapping carriers disposed right below an isolation region. the material of the additional isolation region is porous silicon. Since porous silicon is a functional material of spongy structure by electrochemistry anodic oxidizing monocrystalline silicon wafer, there are a large number of microvoids and dangling bonds on the surface layer of the porous silicon. These defects may form defect states in a center of forbidden band of the porous silicon, the defect states may trap carriers so as to cause an increased resistance. And with an increase of density of corrosion current, porosity increases, and defects in the porous silicon increase. The present invention can reduce the charge sharing effect due to heavy ions by using a feature that the defect states in the porous silicon trap carriers, the formation of a shallow trench isolation (STI) region and a isolation region underneath only needs one time photolithography, and the process is simple, so that radioresistance performance of an integrated circuit may be greatly increased.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

Tea polyphenol pellet and method for preparing the same

The invention provides a tea polyphenols micro-pill that is prepared from tea polyphenols and pharmaceutical adjuvant, which is characterized in that the pharmaceutical adjuvant is an excipient and a bonding agent. The tea polyphenol micro-pill comprises (by weight percentage) that: tea polyphenols 20-80 percent, the excipient 15-79 percent and the bonding agent 1-5 percent. The tea polyphenols micro-pill can be made into sustained-release preparation or enteric-coated preparation. The pharmacological experiment indicates that the tea polyphenols micro-pill of the invention has good effect on radioresistance, anti-aging, etc.
Owner:JF PHARMALAND TECH DEV

Method for repairing thorium (IV)-polluted water body by employing facultative marine fungi living body

The invention relates to a method for repairing a thorium (IV)-polluted water body by employing a facultative marine fungi living body. The method comprises the following steps: adding a facultative marine fungi (i) Fusariumsp.#ZZF51 living body serving as a material to a polluted water body containing thorium (IV); fishing out the facultative marine fungi living body; and carrying out centralized treatment after a period of time, wherein the fungi material has strong salt tolerance and radioresistance, and strong thorium (IV) enriching ability; the removal rate can be up to 70-80% 2-8 hours after the facultative marine fungi living body is added; and fungal active mycelium floats on the surface of the water body, and can be easily fished out and subjected to centralized treatment. The method has the economic and technical advantages of being simple and convenient to operate and manage, low in cost, high in remediation efficiency, friendly to environment, free of secondary pollution and the like, and is suitable for after-treatment of various thorium-polluted water bodies from thorium mines and hydrometallurgical plants, as well as various spent ore and tailing leaching liquid.
Owner:NANHUA UNIV

Environment-friendly anti-radiation interior wall latex paint

The invention discloses environment-friendly anti-radiation interior wall latex paint. With an organosilicon modified acrylate emulsion as a main material, the paint has good flexibility, high-low temperature resistance, water resistance and weather fastness and low surface energy; under the mutual synergistic effect of modified hollow glass beads, jade powder and a polygonatum odoratum and grape leaf mixed extraction solution, the radioresistance, the reflective thermal insulation and the ultraviolet absorption ability are improved; a non-ionic emulsifier is intercalated in an ionic emulsifier, so that the distance between ion bonds of a reactive emulsifier on the surfaces of latex particles is increased, electrostatic tension of latex particle surfaces is reduced through electrostatic shielding of the non-ionic emulsifier, distribution of the reactive emulsifier on latex particles is increased, and accordingly, the latex paint has higher stability and good surface tension; by means of shell powder, the latex paint has fine texture and a full paint film, precipitation and good brushing property are avoided, and porosity is favorable for adsorbing harmful substances such as formaldehyde, metal ions and the like in air; with the deionized water as a solvent, the latex paint is safe, environment-friendly, high in solid content, low in content of VOC, high in adhesion force and excellent in water resistance, and the thickness of the paint film can be increased.
Owner:苏州振振好新型建材科技有限公司

Fire detection device and method under nuclear power station extreme environment condition

InactiveCN108564760AGood information interaction interfaceWith remote wireless alarmCharacter and pattern recognitionFire alarm smoke/gas actuationRadioresistanceWireless data
The invention discloses a fire detection device and method under the nuclear power station extreme environment condition. The fire detection device and method are applicable to video processing underthe fireproof region intrinsic special environment of a nuclear power plant, and a fire intelligent recognition model is formed. The fire detection device comprises a table trolley which comprises a display screen for displaying various data; a processing mainframe is in data connection with the display screen, and a software part and multiple driving programs are installed inside the processing mainframe; a power module supplies power to the table trolley; a data interface board is used for wired and wireless data connection between the interior and the exterior of the table trolley; a video,audio an remote wireless alarm device is used for supplying alarm information to an emergency system or other designated interfaces or providing images or short videos as needed; a plurality of radioresistance camera devices are distributed inside the fireproof region, and each radioresistance camera device comprises a support and a pan-tilt arranged on the support; a camera is arranged on the pan-tilt and has the heating function. The fire detection device is high in interference resistance, good in environmental suitability and stable in working performance.
Owner:GUANGXI FANGCHENGGANG NUCLEAR POWER +1
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