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245results about How to "Rough surface" patented technology

Device for filtering various water sources into direct drinking water

The invention discloses a device for filtering various water sources into direct drinking water. A primary biological-purification combined filter core water purifying module is added in front of conventional water purifying treatment equipment according to a water body purifying principle; and the steps of ozone pre-oxidation and chlorine sterilization are not needed, and pollutants in water, which are harmful to human bodies, are removed by relying on the metabolism effect of clustered microorganisms in the water. The device has the advantages of compact structure, small occupied area, low water making cost and large application range; the made purified water can be afforded by vast numbers of rural population and urban population. The invention is implemented through the following technical scheme: the disclosed biological-purification combined filter core water purifying module and the conventional water purifying treatment unit thereof are designed and manufactured into standard combined filter core modules; the combined filter core modules are buckled with each other from up to down to form a tower-shaped water purifying device according to the sequence of a water purifying treatment process; as for different water resources and different customer requirements, all that is needed is to replace the combined filter core modules in different processes according to the local water quality situation; and various water sources can be filtered into the direct drinking water.
Owner:郑高宽

Physical structure for use in a physical unclonable

The invention relates to a semiconductor device comprising a physical structure (50) for use in a physical unclonable function, wherein the physical structure (50) comprises a lead-zirconium titanate layer (25), and a silicon-comprising dielectric layer (27) deposited on the lead-zirconium-titanate layer (25), wherein the silicon-comprising dielectric layer (27) has a rough surface (SR), the physical structure (50) further comprising a conductive layer (30) provided on the rough surface (SR) of the silicon-comprising dielectric layer (27). The invention further relates to a method of manufacturing such semiconductor device. The invention also relates to a card, such as a smartcard, and to a RFID tag comprising such semiconductor device. The inventors have found that depositing of a silicon- comprising dielectric layer (27) on a lead-zirconium titanate layer (25) using vapor deposition results in a silicon-comprising dielectric layer (27) having a rough surface (SR). This rough surface (SR) can be used in a PUF to make a resistor (R) with a variable random value by depositing a conductive layer (30) on the rough surface (SR). Alternatively, the combination of both layers (25, 27) can be used in a PUF as composite dielectric to make a capacitor (C) with a variable random capacitance value.
Owner:NXP BV

Processing method of whole grain vermicelli

The invention discloses a processing method of whole grain vermicelli. The processing method comprises the following steps of carrying out drying, cleaning, grading, stone removal and milling processes on whole grain, carrying out ultramicro-crushing to obtain whole grain superfine powder having fineness less than 74 micrometers, carrying out adjustment on water content of the whole grain superfine powder until the water content is in a range of 10 to 50%, feeding the whole grain superfine powder with water content of 10 to 50% into an extruder for one-step pasting extrusion noodle forming, setting extrusion conditions, wherein a first zone temperature is in a range of 40 to 60 DEG C; a second zone temperature is in a range of 60 to 80 DEG C; a third zone temperature is in a range of 80 to 120 DEG C; a forth zone temperature of 80 to 120 DEG C; a fifth zone temperature is in a range of 120 to 150 DEG C; and a sixth zone temperature is in a range of 70 to 90 DEG C, carrying out extrusion, and carrying out hang drying, cooling, cutting and packaging processes on extruded whole grain noodles to obtain whole grain vermicelli products. The processing method adopts a superfine powder crushing technology and a twin-screw boiling-extrusion physical modification vacuum degassing one-step forming technology to produce the whole grain vermicelli products so that various original nutrientcomponents of natural grain are retained; storage time is prolonged; and whole grain food processing quality and whole grain food edible quality are improved.
Owner:ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION

Method for preparing bamboo shoot shell-based activated carbon for super capacitor

The invention discloses a method for preparing bamboo shoot shell-based activated carbon for a super capacitor. The method comprises the following steps of firstly carrying out pretreatment processes such as washing and drying on raw material bamboo shoot shells; then carbonizing the bamboo shoot shells at high temperature, treating by acid to remove trace metal elements, washing by using distilled water and drying; finally, activating, washing and drying to obtain bamboo shoot shell-based activated carbon. The bamboo shoot shell-based activated carbon is tubular in microstructure, the micropore structure is developed, the specific surface area is as high as 3162m<2>/g, and the specific capacitance is as high as 308Fg<-1> when the electric current density is 1Ag<-1>; when the electric current density is 2Ag<-1>, the specific capacitance has no attenuation basically and is as high as 271Fg<-1> after 10000 times of circulation, and thus the cycle performance is excellent, so that the bamboo shoot shell-based activated carbon has good application prospects in the fields of super capacitors and energy storage. In addition, according to the invention, the bamboo shoot shells are taken as raw materials, so that the comprehensive utilization of the wastes is realized.
Owner:XIANGTAN UNIV

Cobalt-nickel-double-metal-hydroxide-nanosheet/carbon-nitride-coated nitrogen-doped hollow graphene sphere composite material and preparation method thereof and application

The invention discloses a cobalt-nickel-double-metal-hydroxide-nanosheet/carbon-nitride-coated nitrogen-doped hollow graphene sphere composite material and a preparation method thereof, and application as a supercapacitor electrode material. The composite material comprises a cobalt-nickel-double-metal-hydroxide-nanosheet/carbon-nitride-coated nitrogen-doped hollow graphene sphere has a 3D spherical appearance; and the specific surface area is 100 to 1000m<2>/g and the average pore diameter of 1 to 200mm. In addition, the preparation method includes the following steps: preparing a small polystyrene sphere; preparing a polyaniline-coated graphene sphere; preparing a carbon-nitride-coated nitrogen-doped hollow graphene sphere; and preparing a cobalt-nickel-double-metal-hydroxide-nanosheet/carbon-nitride-coated nitrogen-doped hollow graphene sphere composite material. Therefore, a problem of series agglomeration of the cobalt-nickel double-metal hydroxide unit structure during the traditional preparation technology process is solved effectively; and a novel method is provided for preparing an electrode material with advantages of large specific surface area, high flexibility, high electric capacity, and high stability.
Owner:ZHEJIANG SCI-TECH UNIV

Double-sided photo-thermal conversion material and solar seawater evaporation device constructed by same

The invention relates to a double-sided photo-thermal conversion material and a solar seawater evaporation device constructed by the same. The double-sided photo-thermal conversion material has a composite layer (more than two layers) structure, and the upper and lower layers are hydrophilic photo-thermal conversion materials. The device is composed of the double-sided photo-thermal conversion material (with a three-layer composite structure, the lower layer is completely immersed in seawater, and the upper layer is located above the water surface), a water tank (containing seawater), a waterlevel adjusting mechanism (capable of adjusting the height of the water surface) and a turnover mechanism (capable of intermittently driving the double-sided material to turn over up and down). Alternatively, the device is composed of a conveyor belt (which is a hydrophilic photo-thermal conversion material with a double-layer composite structure and is distributed into three parts, namely, a partbelow the water surface, a part above the water surface and a part outside the water tank), a water tank, a water level adjusting mechanism, a supporting mechanism (capable of supporting the conveyorbelt) and a driving mechanism (capable of continuously driving the conveyor belt to work). The problems that in the prior art, salt particles separated out of the surface of a hot layer are not removed in time, consumed time is long, and cost is high are effectively solved.
Owner:DONGHUA UNIV
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