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34results about How to "Good alternative" patented technology

Agilawood tea cigarette and preparation method thereof

The invention belongs to the field of cigarettes, and particularly relates to agilawood tea cigarette and a preparation method thereof. The agilawood tea cigarette is prepared from the following ingredients in parts by weight: 80 to 100 parts of tea shred, 10 to 15 parts of agilawood powder, 5 to 7 parts of fructus momordicae silk pulp, 2 to 4 parts of ficus carica extractum, 3 to 5 parts of rhizoma anemarrhenae, 2 to 4 parts of crossostephium chinense, 1 to 3 parts of storax power, 1 to 3 parts of borneol, 2 to 4 parts of glycerinum, 1 to 3 parts of honey, 0.2 to 0.4 parts of benzoic acid, 0.1 to 0.3 part of citric acid and 0.3 to 0.5 part of methyl salicylate. The agilawood tea cigarette has the advantages that the agilawood tea cigarette is prepared from Yunnan large leaf variety arbor Pu'er tea as major raw materials and agilawood and the like as auxiliary materials; the addiction is avoided; the agilawood tea cigarette can be easily accepted by smokers, so that the smoking give-up effect is achieved; users do not need to change the use habit of the traditional cigarette smoking; through the specific proportion and a preparation method, the smoking feeling is fragrant, sweet and soft; no stimulation is generated on the oral cavity; the harm of second-hand smoking is avoided; the crudum sputhum and the cough of the long-period smokers can be effectively relieved.
Owner:昆明草本清戒烟品科技有限公司

Bone shaping instrument and method for using the same

ActiveUS7766913B2More kinematically correctLess invasive surgeriesJoint implantsNon-surgical orthopedic devicesReciprocating motionProsthesis
A bone resection tool for resecting an end of a bone along a surface having a curvature comprises a guide, a cutting tool and a track follower. The guide is configured to be removably attached in a fixed position to the end of the bone. The guide is configured to include a track exhibiting a curvature generally corresponding to the curvature of the surface to be resected in the bone. The cutting tool includes a cutting face. The track follower is configured to couple to the cutting tool and cooperate with the track to facilitate reciprocation of the cutting tool relative to the guide to induce the cutting face to resect the bone along the surface having the curvature. A method for cutting a bone along a curved surface conforming to the curvature of a curved surface of the underside of a prosthetic component comprises the steps of incising the tissue surrounding the surface of the bone, positioning a guide alongside the surface of a bone to be cut, affixing the guide to the bone, interconnecting a cutter having a cutting face with the guide, maintaining the cutting face generally parallel to the tangent of the curved surface and traversing the cutting face along the bone while guiding the cutter along the track. The tissue incision incises the tissue surrounding the surface of the bone to be cut in a minimally invasive fashion. The positioned guide includes a track configured to assimilate the curvature of the curved surface of the underside of the prosthetic component.
Owner:DEPUY PROD INC

Preparation method and application of enzymolysis lactoalbumin/xanthan gum composite gel

The invention discloses a preparation method and application of enzymolysis lactoalbumin / xanthan gum composite gel and belongs to the technical field of dairy products. The preparation method comprises the following steps of: performing restrictive enzymolysis on lactoalbumin serving as a raw material by using alkali protease; after deactivating enzyme, performing freeze drying to prepare enzymolysis lactoalbumin; adding xanthan gum; stirring uniformly to obtain an enzymolysis lactoalbumin / xanthan gum complex; and performing thermal gelling under a certain condition to prepare the enzymolysis lactoalbumin / xanthan gum composite gel with texture and mouthfeel similar to those of fat, wherein the enzymolysis lactoalbumin / xanthan gum composite gel is applied to production of low-fat cheese, low-fat yogurt and low-fat ice cream.
Owner:CHINA AGRI UNIV

Unmanned aerial vehicle remote sensing image collection system and method based on Android device

The invention discloses an unmanned aerial vehicle remote sensing image collection system based on an Android device, which is characterized by comprising an unmanned aerial vehicle terminal, a ground terminal device and a wireless communication device placed in a field, wherein the Android device, an external image collection device, a GPS device and an integrated sensor are mounted on the unmanned aerial vehicle terminal, when at work, the external image collection device, the GPS device and the integrated sensor respectively transmit collected information to the ground terminal device through the wireless communication device, and a control instruction of the ground terminal device is transmitted by the wireless communication device to the Android device. According to the image collection system and method disclosed by the invention, the requirements on the professional skills of an operator are relatively low, the Android device is low in cost and is easy to replace, so that the development and use costs of the entire system are reduced.
Owner:SOUTH CHINA AGRI UNIV

Method for producing graphene/polyimide copolymerized heat-conduction membrane

InactiveCN106083046APrepare fewer layersSimple processComposite filmHigh energy
The invention discloses a method for producing a graphene / polyimide copolymerized heat-conduction membrane. The method overcomes the problem of high cost due to high energy consumption, graphene can be better dispersed in a matrix, compatibility between graphene and the matrix is increased, thermal resistance influence between interfaces is reduced, and the heat-conduction membrane is in favor of heat conduction of the composite film materials.
Owner:斯迪克新型材料(江苏)有限公司

Electronic remote control lock head with emergency unlocking function

ActiveCN104533172ARealize emergency manual openingTurn on smoothlyNon-mechanical controlsCylinder locksRemote controlElectric machinery
The invention discloses an electronic remote control lock head with an emergency unlocking function, and belongs to the field of electronic locks. The electronic remote control lock head comprises a lock shell, a motor, a dial wheel, a dial wheel driving piece, an unlocking rod, an unlocking pinball, an unlocking matching spring and a lock cylinder. The motor, the dial wheel driving piece and the unlocking rod are sequentially mounted in the lock shell, a pinball containing groove is formed in the end, matched with the dial wheel driving piece, of the unlocking rod, and a stopping block is arranged in the pinball containing groove. One end of the dial wheel driving piece is connected with the motor, and the other end of the dial wheel driving piece is provided with a boss which is located in the pinball containing groove and is free of rotating interference with the stopping block. The dial wheel is fixed on the dial wheel driving piece, the unlocking pinball and the unlocking matching spring are sequentially arranged on the lower portion of the pinball containing groove, the lower end of the unlocking matching spring is matched with the lock cylinder, and the lock cylinder rotates to enable the unlocking pinball to enter or exit from the pinball containing groove. The electronic remote control lock head can be unlocked by an emergency key in emergency circumstances, and the trouble and loss of overall dismounting of the electronic lock are avoided; the concealment of an emergency key hole is good, and the safety is high.
Owner:陈京杰

Additive composition used for piglet feed, compound premix and antibiotic-free piglet feed

The invention provides an additive composition used for a piglet feed. The additive composition comprises tannic acid, sanguinarine and an epimedium herb extract, wherein the mass ratio of the tannic acid, the sanguinarine and the epimedium herb extract is (750-1300):50:(300-800). The invention also provides a compound premix containing the additive composition and an antibiotic-free piglet feed containing the additive composition. The additive composition, and the compound premix prepared from the additive composition, and the antibiotic-free piglet feed prepared from the additive composition have a plurality of functions of improving intestinal microflora balance of piglets, raising immunity, and resisting diarrhea. No antibiotic is added, so that the feed has high safety and accords with an ideal amino acid mode. Coordination on the aspects of electrolyte balance and mineral balance is carried out, so that the feed can comprehensively meet nutrient and health demands of piglets, and price performance ratio is taken into account at the same time so as to greatly raise benefits of pig farms.
Owner:SHENZHEN JINXINNONG FEED +3

Modified dioscorea opposita thunb starch prepolymer and degradable polyurethane foam material prepared from prepolymer

The invention discloses a modified dioscorea opposita thunb starch prepolymer and a degradable polyurethane foam material prepared from the prepolymer. A preparation method of the modified dioscorea opposita thunb prepolymer comprises the following steps: (1) putting polyisocyanate and polycaprolactone, the molar ratio of which is 2: 1, into a container, reacting at the temperature of 80+ / -2 DEG C for 3-5 hours, and then degrassing under a negative pressure till bubbles do not exist, thus obtaining a polycaprolactone prepolymer; and (2) dissolving modified dioscorea opposita thunb starch and the polycaprolactone prepolymer in a dimethylsulfoxide solution at the temperature of 60-70 DEG C, then adding a catalyst NaCNBH3, reacting for 2-3 days under a stirring condition, after ending reaction, cooling obtained mixed liquid to a room temperature, then dropwise adding the mixed liquid to methyl alcohol under a stirring condition so as to form precipitates, filtering to obtain the precipitates, and drying under reduced pressure so as to obtain the modified dioscorea opposita thunb starch prepolymer.
Owner:JIANGSU WELLCARE HOUSEHOLD ARTICLES

Preparation method of veterinary follicle-stimulating hormone analogue

The invention provides a veterinary follicle-stimulating hormone analogue and a preparation method thereof. A connecting sequence is designed according to length, foldability, hydrophobicity and charge effect of a connecting sequence between an alpha peptide chain and a beta peptide chain, the corresponding nucleotide sequence of the connecting sequence is any one of SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO:16, SEQ ID NO:17, SEQ ID NO:18, SEQ ID NO:19 and SEQ ID NO:20, and respective expression quantity and biological activity are compared by virtue of the study. A fused protein of the prepared veterinary follicle-stimulating hormone analogue is similar to the known fused protein in term of biological functions, the expression quantity of multiple fused proteins is obviously increased, the veterinary follicle-stimulating hormone analogue can be used for replacing natural ovarian-stimulating hormone, has great commercial value and is worthy of wide-range popularization.
Owner:林静静 +1

Diarrhea-preventing feed additive for pigs and preparation method and application thereof

The present invention relates to a diarrhea-preventing feed additive for pigs and a preparation method and an application thereof. The feed additive comprises a macleaya cordata extract, quercitrin, potassium diformate, lauric acid monoglyceride, composite probiotic powder and peptidoglycan. Compared with the prior art, the diarrhea-preventing feed additive can inhibit and kill micro-organisms, maintains intestines and barrier functions, prevents and treats diarrhea, improves immunity, increases feed intake, daily weight gain and feed conversion rate, promotes growth, and achieves a stable andgood replacement effect of antibiotics.
Owner:FUJIAN AONONG BIOLOGICAL TECH GRP CO LTD +3

Non-noble metal composite oxide honeycomb catalyst for low-carbon hydrocarbon catalytic combustion

The invention discloses a non-noble metal composite oxide honeycomb catalyst for low-carbon hydrocarbon catalytic combustion. The catalyst is obtained by coating cordierite honeycomb ceramic, used asa matrix, with a CuMn2CexOdelta composite oxide coating, wherein x is 1-5, and the CuMn2CexOdelta composite oxide coating accounts for 5-15% of the mass of the catalyst. The active component CuMn2CexOdelta composite oxide in the catalyst is prepared through a hydrothermal method by taking ethylenediamine as a hydrothermal guide precipitant, and then the CuMn2CexOdelta composite oxide is subjectedto pulping, dip-coating, drying and calcination to prepare the composite oxide honeycomb catalyst. The catalyst has the advantages of simple preparation method, easily available raw materials and lowin cost, has a good catalytic combustion activity on low-carbon hydrocarbons such as methane, ethane, propane, ethylene, propylene and n-hexane, can replace a noble metal catalyst, and has good practical values.
Owner:XIAN CATALYST NEW MATERIALS CO LTD

Wild trametes orientalis Imaz domestication cultivation technology

InactiveCN103503692AGood medicinal and health valueGood alternativeHorticultureTrametes orientalisSucrose
The invention relates to a cultivation domestication technology of funguses, and belongs to the field of microorganism and microorganism application. A wild trametes orientalis Imaz domestication cultivation technology comprises the steps that wild trametes orientalis Imaz is collected from the wild, tissue and matrix separation, mycelium purification cultivation and domestication are conducted, and wood flour of banyans, bran, corn flour, saccharose, Ca(OH)2, MgSO4 and KH2PO4 are processed and mixed to form culture media according to the weight ratio of 100:20-25:6-8:6-8:0.6-0.8:1-2:0.2-0.4:0.3-0.6; in the hypha growing step, cultivation temperature, water content of the culture media, space humidity and pH values are controlled; illumination intensity and CO2 concentration in the environment are used for domestication and cultivation of the wild trametes orientalis Imaz. By means of the cultivation domestication technology, the cultivated trametes orientalis Imaz has good officinal and health-care value, can replace wild resources better, and has high development and popularization value.
Owner:TANGYIN EDIBLE FUNGUS RES INST

Energy-saving lamp

The invention discloses an energy-saving lamp, which comprises a lamp head, an upper shade, a lower shade, an electronic driving circuit and a helical energy-saving lamp tube. The energy-saving lamp is characterized in that the lower shade is provided with an insequent connector matched with the end of the helical energy-saving lamp tube; the middle part of the lower shade is provided with a shell which is protruded downward and is used for mounting the electronic driving circuit; and the center of the helical energy-saving lamp tube is provided with a cavity, and the shell is inserted into the cavity. The energy-saving lamp has the advantage that the space of the cavity in the center of the helical energy-saving lamp tube is utilized for the shell to insert into the cavity, so that the volume of the upper shade and the lower shade can be smaller, the volume of the whole energy-saving lamp is more compact, and is easier to be matched with lamps; in addition, a lamp tube at the top end of the helical energy-saving lamp tube is of a snail shape, so that the whole lamp tube forms a shape of a lamp shade which conceals the shell for mounting the electronic driving circuit in the whole lamp tube, the appearance of the energy-saving lamp is beautiful; and a luminous dark area on the top of the lamp tube is eliminated when the lamp tube is lightened; and the illumination effect of the energy-saving lamp approaches that of the common light bulb, so the replacement effect is more ideal.
Owner:ZHEJIANG YANKON GROUP

An prepared method for a graphene composite and its preparation method for heat dissipation

The invention discloses a graphene composite film for heat dissipation and a preparation method thereof. Surfaces of multiply layers of polymer films are coated with graphene slurry in advance, the coated polymer films are placed in a stacked manner for baking, and the graphene composite film with high heat dissipation efficiency is prepared while carbonization and graphitization temperatures and time are reduced by the aid of high-temperature carbonization and graphitization under the nucleation induction action of the graphene in the carbonization and graphitization process. Compared with similar heat-dissipation graphite film materials in the market, the graphene composite film prepared with the method has the advantages that the preparation temperature is lower, the forming time is shorter, the energy consumption is lower, and the graphene composite film can be well applied to electronic devices, LED lamps and liquid crystal display products with high heat quantity and can well replace existing heat-dissipation film materials.
Owner:ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL

System and method for providing preferential service to mobile terminal

The invention discloses a system and method for providing a preferential service to a mobile terminal. The method comprises the steps of selecting one or more preferential cells for a user in a cell covered by a service area registered by the user according to the frequency of using each cell as an endpoint cell in a cell switching process of the user, wherein the endpoint cell is a source cell or a target cell in the cell switching process; and obtaining the preferential cell of the user from a preferential cell calculating platform and providing a preferential charging to the service registered by the user while the user is within the preferential cell. In a cell preferential service scheme proposed in the invention, a mobile network system determines one or more preferential cells for the user according to the frequency of using each cell as the endpoint cell in the cell switching process of the user after the user opens the cell preferential service and registers the service area, and provides the preferential charging to the service registered for the user while the user is in the preferential cell.
Owner:ZTE CORP

Vegetable seedling culture substrate obtained based on waste utilization and preparation method of vegetable seedling culture substrate

The invention relates to the technical field of agricultural seedling culture, and particularly discloses a vegetable seedling culture substrate obtained based on waste utilization and a preparation method of the vegetable seedling culture substrate. The vegetable seedling culture substrate is prepared from the following components in parts by mass: 5 to 15 parts of herbivorous animal manure, 5 to 10 parts of wormcast, 1 to 5 parts of gramineous straw, 0.5 to 1 part of phosphate fertilizer, 0.5 to 2 parts of rice husk, 25 to 35 parts of rice ash and / or 10 to 20 parts of peanut dust, 10 to 20 parts of edible mushroom residue and 10 to 20 parts of traditional Chinese medicine residue. The materials are fully mixed, composted and fermented, and the prepared vegetable seedling culture substrate has the remarkable effects of waste utilization, no turf, low cost, rich nutritional ingredients, balanced and long fertilizer efficiency, high universality and good seedling culture effect.
Owner:江西芳芽农业发展有限公司

Micro-indentation tooth plate

The invention discloses a micro-indentation tooth plate and a preparation method thereof. The micro-indentation tooth plate structurally comprises a tooth plate base body and a hard alloy coating; andthe hard alloy coating is welded on the surface of the base body through brazing. The hard alloy coating is composed of hard alloy particles and brazing solder, the middles and the bottoms of the hard alloy particles are embedded in the brazing solder, and the tops of the hard alloy particles are exposed; and the heights of the outer surfaces of the hard alloy particles are equal, and the error does not exceed + / -0.2 mm. The hard alloy surface of the micro-indentation tooth plate is clean, free of solder coating, good in sharpness, good in tooth plate equal-height performance, small in holding force stress on an oil casing pipe, and consistent and fine in indentation; and the damage to the surface of the pipe is smaller after screwing and unscrewing, cost can be saved, investment is reduced, and economic benefits are remarkable.
Owner:江苏韦尔博新材料科技有限公司

Helical energy saving lamp tube

This invention discloses a spiral energy-saving light tube, which comprises a main body light tube and a top light tube which is connected with the main body light tube into a whole body. The main body light tube is a three-dimensional spiral, and the spiral energy-saving light tube is characterized in that the top light tube is a planar spiral, and the distance from the lowest point of the top light tube to the lower end of the main body light tube is smaller than half of the tube diameter of the light tube; the spiral energy-saving light tube has the advantages that the top light tube is the planar spiral, so that the whole light tube forms a shape of a lamp cover, the lighting dark space at the top part of the light tube is eliminated when the light tube is turned on, and compared with the illuminating effect of a common bulb, the substitution effect is more ideal; moreover, the distance from the lowest point of the top light tube to the lower end of the main body light tube is smaller than half of the tube diameter of the light tube, so that the height of the whole light tube is shortened, the volume is smaller under identical output power, and the whole light tube seems smaller and brighter.
Owner:ZHEJIANG YANKON GROUP

A kind of preparation method of veterinary follicle stimulating hormone analogue

The invention provides a veterinary follicle-stimulating hormone analogue and a preparation method thereof. A connecting sequence is designed according to length, foldability, hydrophobicity and charge effect of a connecting sequence between an alpha peptide chain and a beta peptide chain, the corresponding nucleotide sequence of the connecting sequence is any one of SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO:16, SEQ ID NO:17, SEQ ID NO:18, SEQ ID NO:19 and SEQ ID NO:20, and respective expression quantity and biological activity are compared by virtue of the study. A fused protein of the prepared veterinary follicle-stimulating hormone analogue is similar to the known fused protein in term of biological functions, the expression quantity of multiple fused proteins is obviously increased, the veterinary follicle-stimulating hormone analogue can be used for replacing natural ovarian-stimulating hormone, has great commercial value and is worthy of wide-range popularization.
Owner:林静静 +1

Preparation method of hydroxyapatite composite material for producing bone porcelain

The invention provides a preparation method of a droxyapatite composite material for producing bone porcelain. The preparation method comprises the following production steps: (1) mixing and stirring calcium oxide and water to form mixed liquid, sieving to remove iron, adding nano-slicon and nano-zirconium, and spraying phosphoric acid to react; and (2) carrying out centrifugal dewatering on the mixed liquid to obtain powder, drying the powder, crushing the powder, and firing the powder in a kiln, so as to obtain the droxyapatite composite material. The droxyapatite composite material prepared by virtue of the preparation method can be used for producing excellent functional ceramics, has good compatibility with living organisms and moreover achieves high strength and good alternative, the production process performance of traditional bone porcelain and the physicochemical indexes of products are greatly improved, and particularly, the material quality and use performance of the bone porcelain are improved to new levels; and the compressive strength of the bone porcelain produced from the droxyapatite composite material can reach 650MPa, and the tensile strength can reach 250MPa.
Owner:广东金鹿陶瓷实业有限公司

Control circuit of powder feeder for hypersonic flame spraying

The invention relates to a control circuit of powder feeder for hypersonic flame spraying, comprising a first potentiometer, a first speed control panel, a first voltmeter, a first power tube, a second potentiometer, a second voltmeter, a second motor, a second speed control panel, a second power tube, a first switch, a second switch, a first electromagnetic valve, a second electromagnetic valve, a transformer, a first motor and a power strip. The first motor and the second motor allows two feeding branches to be controlled; compared with the traditional single-channel feeding way, the feeding way using the two motors has the advantages that feeding efficiency is improved, the single device is used for two hypersonic flame spraying devices, the production cost is lowered, a replacement function is good, if one feeding branch has a control fault, the other feeding branch can be controlled instead, and smooth spraying is guaranteed.
Owner:WUHU DINGHENG MATERIAL TECH

Three-step aluminum alloy hub producing method and forging dies and spinning dies used by same

The invention discloses a three-step aluminum alloy hub producing method, which sequentially comprises the following steps of: cutting aluminum alloy bars into a blank, cleaning the blank to remove oil stain, heating and insulating the blank; roughly forging the blank: putting the blank into a forging die for rough forging in a press, and upsetting the blank into a spinning blank; spinning: putting the spinning blank into a spinning die on a spinning machine; and spinning the spinning blank into a rough hub; and performing precision forging: putting the rough hub into a forging die for precision forging in the press, and spinning the spinning blank into a hub. The method has the advantage of low requirement for the travel of the spinning machine on the premise that the quality of the hub is ensured and the cost is low. The invention also discloses the forging dies and the spinning dies which are used in the method.
Owner:宁波宝通轮业有限公司

A control circuit of a powder feeder for supersonic flame spraying

The invention relates to a control circuit of powder feeder for hypersonic flame spraying, comprising a first potentiometer, a first speed control panel, a first voltmeter, a first power tube, a second potentiometer, a second voltmeter, a second motor, a second speed control panel, a second power tube, a first switch, a second switch, a first electromagnetic valve, a second electromagnetic valve, a transformer, a first motor and a power strip. The first motor and the second motor allows two feeding branches to be controlled; compared with the traditional single-channel feeding way, the feeding way using the two motors has the advantages that feeding efficiency is improved, the single device is used for two hypersonic flame spraying devices, the production cost is lowered, a replacement function is good, if one feeding branch has a control fault, the other feeding branch can be controlled instead, and smooth spraying is guaranteed.
Owner:WUHU DINGHENG MATERIAL TECH

Modified Huai Potato Starch Prepolymer and Degradable Polyurethane Foam Material Prepared with the Prepolymer

The invention discloses a modified dioscorea opposita thunb starch prepolymer and a degradable polyurethane foam material prepared from the prepolymer. A preparation method of the modified dioscorea opposita thunb prepolymer comprises the following steps: (1) putting polyisocyanate and polycaprolactone, the molar ratio of which is 2: 1, into a container, reacting at the temperature of 80+ / -2 DEG C for 3-5 hours, and then degrassing under a negative pressure till bubbles do not exist, thus obtaining a polycaprolactone prepolymer; and (2) dissolving modified dioscorea opposita thunb starch and the polycaprolactone prepolymer in a dimethylsulfoxide solution at the temperature of 60-70 DEG C, then adding a catalyst NaCNBH3, reacting for 2-3 days under a stirring condition, after ending reaction, cooling obtained mixed liquid to a room temperature, then dropwise adding the mixed liquid to methyl alcohol under a stirring condition so as to form precipitates, filtering to obtain the precipitates, and drying under reduced pressure so as to obtain the modified dioscorea opposita thunb starch prepolymer.
Owner:JIANGSU WELLCARE HOUSEHOLD ARTICLES

Alternative model automatic selection method, storage medium and terminal for black-box attack

The invention discloses a method, a storage medium and a terminal for automatically selecting an alternative model for black-box attack, belonging to the technical field of deep learning. The method includes: selecting an alternative model in a neural network model according to original sample attribute information, and / or, according to Attack Feedback Updates currently use alternative models. The present invention selects an alternative model with a high degree of matching with the current black-box model according to the original sample attribute information that is related to the complexity of the black-box model, and / or updates the currently used alternative model through attack feedback information, so as to ensure that after the selection or update The surrogate model can exert excellent surrogate performance, and the generated adversarial samples have a high attack success rate in black-box attacks, which is conducive to promoting the current research on neural network model security.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Novel LED key light modulation technology

Disclosed in the invention is a novel LED key light modulation technology comprising an integrated circuit. A clamping diode, an under-voltage protection module, an oscillator module, a time delay unit, a light modulation control module, and a power-on reset module are arranged inside the integrated circuit; and a bypass capacitor and an LED module group are connected outside the integrated circuit. The cost is low; and the light modulation technology can be integrated to the existing LED drive chip directly without any extra cost. The substitutability is high; a universal common switch on the existing market can be used as a light modulation key to realize the light modulation function.
Owner:CHONGQING ZEQINGJU SCI & TECH DEV

Novel LED key dimming technology

The invention discloses a novel LED key dimming technology. The novel LED key dimming technology is characterized by comprising an integrated circuit, wherein a clamping diode, an under-voltage protection module, an oscillator module, a delayer, a dimming control module and a power-on reset module are arranged in the integrated circuit, and the integrated circuit is externally connected to a bypass capacitor and an LED module.
Owner:钱志强

Enhanced air floatation-multistage downward flow biofilter treatment system and method for sulfur-containing produced water

The invention discloses an enhanced air floatation-multistage downward flow biofilter treatment system for sulfur-containing produced water. The enhanced air floatation multistage downward flow biofilter treatment system comprises a mixer, an air floatation tank, a multistage downward flow biofilter, a fine filter and a purified water tank which are connected in sequence, a water inlet of the mixer is connected with a water inlet pump, and a dosing tank is connected on the mixer; the multi-stage downward flow biofilter comprises at least two downward flow biofilters which are sequentially connected through an aeration pipe, and a water distributor, a ceramsite filter material layer and a filter material supporting layer are arranged in each downward flow biofilter from top to bottom; eachaeration pipe is connected with a pressurized dissolved air pump, and a water outlet of the multi-stage downward flow biofilter is connected with one side of the bottom of the fine filter through a sewage lifting pump; and a water outlet of the purified water tank is connected with a bactericide adding device. The invention also discloses a method for treating sulfur-containing produced water by using the system. The effluent has the characteristics of low contents of sulfide, petroleum hydrocarbon, dissolved oxygen and suspended solids and low corrosion rate.
Owner:SHAANXI YANCHANG PETROLEUM GRP

Reusable waterborne polyurethane shielding material and preparation method thereof

The invention relates to a reusable waterborne polyurethane shielding material and a preparation method thereof. The preparation method of the material comprises the steps that: 1, any one or a combination of two or more of polypropylene oxide glycol, polypropylene oxide triol, polytetrahydrofuran ether diol and 3001 polyester polyol, and a plasticizer, are weighed and placed in a reactor filled with nitrogen, stirring the materials at the temperature of 75-95 DEG C and reacting for 15-30 minutes; (2) adding toluene diisocynate, an emulsifier and a curing agent into the reactor, adjusting thewater bath temperature to 80-95 DEG C, and stirring for 30-50 minutes; (3) adding polyethylene glycol monomethyl ether, continuously reacting for 1-2h, dropwise adding a cross-linking agent and a chain extender, adding deionized water to adjust the solid content to 40-60%, continuously reacting for 1-2h, and performing cooling; and (4) adding talcum powder into the raw materials obtained in the step S3, and performing uniform stirring to obtain the waterborne polyurethane shielding material. The material is waterborne polyurethane, can realize good bonding and shielding effects, and has the advantages of high viscosity, reusability, simplicity in operation, no pollution in after-treatment and the like.
Owner:长春一汽富维东阳汽车塑料零部件有限公司
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