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Authority management method and device, mobile terminal and storage medium
ActiveCN108712561AAvoid using directlyImprove performanceComputer security arrangementsSubstation equipmentRights managementComputer terminal
The embodiment of the present application discloses an authority management method and device, a mobile terminal and a storage medium, and relates to the technical field of mobile terminals. The method comprises the following steps: after device management authority of an application is activated, an acquisition request for the device management authority is monitored; when the acquisition requestfor a target authority is monitored, the authority level of the target authority is obtained, and it is judged whether the authority level is high than a preset level, wherein the target authority isan authority in the device management authority; when the authority level is higher than the preset level, prompt information whether to allow an operation corresponding to the target authority is displayed; when the instruction allowing to execute the target authority is received, the operation corresponding to the target authority is run. The authority management method and device, the mobile terminal and the storage medium provided by the embodiment of the present application increase the prompt information according to the authority level, thereby preventing the malicious program from directly using the device management authority, and improving system performance and stability.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Composite cheese liver flavor attractant and preparation method thereof
The invention discloses a composite cheese liver flavor attractant and a preparation method of the composite cheese liver flavor attractant. The composite cheese liver flavor attractant comprises the following raw materials in parts by weight: 1-15 parts of natural cream zymolyte, 30-60 parts of fresh pork liver zymolyte, 0.5-3.5 parts of yeast extract, 0.5-4 parts of xylose, 0-2 parts of cysteine hydrochloride, 0-2 parts of vitamin B1, 0-3.5 parts of glutamic acid, 0-30 parts of dextrin and 15-30 parts of water. The composite cheese liver flavor attractant and the preparation method of the composite cheese liver flavor attractant reasonably utilize waste resources, such as animal livers, as alternative products of meat flavor essence or primary liver products in the pet feed and the special animal feed. The composite cheese liver flavor attractant and the preparation method of the composite cheese liver flavor attractant can ensure the intensity of the liver flavor and the meat flavor of the finished product, efficiently reduce the direct usage of the liver, and ensure the body health of pets and carnivores. The cheese flavor and the liver flavor are properly coordinated. The composite cheese liver flavor attractant has the advantages that the composite cheese liver flavor attractant is rich, heavy, natural, lasting and soft in flavor, and favorable in the animal attracting effect, and the composite cheese liver flavor attractant has favorable high temperature resistance. The composite cheese liver flavor attractant meets national edible standards, and the composite cheese liver flavor attractant is safe and reliable when being used as an attractant.
Owner:成都大帝汉克生物科技有限公司
Device for residents to take water on reservoir dam
ActiveCN107675750AEasy to drinkPrevent backflowPressure pumpsMultistage water/sewage treatmentWater qualityEngineering
The invention relates to a water taking device, in particular to a device for residents to take water on a reservoir dam and aims at providing a device used for residents to take water on a reservoirdam and capable of quickly pumping water in a reservoir, filtering silt and comprehensively and effectively eliminating peculiar smell in the water. For solving the technical problem, the device for residents to take water on the reservoir dam comprises an impounding frame, an L-shaped baffle, a filtering device, a second L-shaped water pipe, supporting rods, a water pumping device and the like. The impounding frame is arranged on the right side of the top of the ground, the L-shaped baffle is arranged on the left in the impounding frame, the filtering device is arranged on the left side of the bottom in the impounding frame, the left side of the filtering device is in contact with the lower portion of the right side of the L-shaped baffle, and the second L-shaped water pipe is connected to the left side of the top of the filtering device. The device prevents water from flowing back through a one-way valve, the working efficiency of the device is improved, water on the right in the impounding frame is pumped out through a second piston, the phenomenon can be avoided that residents directly use utensils to take water from the impounding frame, and water cleanliness is effectively ensured.
Owner:孟如苗
A method for preparation of 2-amino-5-chloro-pyridine
The invention provides a method for preparation of 2-amino-5-chloro-pyridine and belongs to the technical field of fine organic synthesis. 2-amino-5-chloro-pyridine is prepared by adopting 2-aminopyridine as a raw material and using hydrochloric acid and sodium hypochlorite for an oxidative chlorination reaction. The method mainly includes the following steps: at 10 DEG C, slowly and dropwise adding a certain amount of concentrated hydrochloric acid in a mixed solution of 2-aminopyridine and NaClO, conducting a reaction at constant temperature for 2 hours, increasing the temperature to 25 DEG C for continuing the reaction for 4 hours, regulating the pH of a reaction product, extracting the reaction product with dichloroethane, and conducting separation to obtain 2-amino-5-chloro-pyridine. The yield of 2-amino-5-chloro-pyridine is up to 72%. The method has the advantages that the cheap NaClO solution generated by chlorination of tail gas by chlorine gas and hydrochloric acid are used as chlorinating agents, the cost is thus reduced, and the comprehensive utilization of resources is achieved; the reaction conditions are mild, direct use of chlorine gas is avoided, safety is high, and pollution is little.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Authority management method, authority management device, mobile terminal and storage medium
InactiveCN108632460AAvoid using directlyImprove performanceSubstation equipmentComputer terminalDatabase
The embodiment of the invention discloses an authority management method, an authority management device, a mobile terminal and a storage medium, which relate to the technical field of the mobile terminals. The method comprises the following steps: when an equipment management authority of an application is activated, monitoring an acquisition request of the equipment management authority, when the acquisition request of a target authority is monitored, displaying prompt information of whether to allow execution of an operation corresponding to the target authority, wherein the target authority is the authority in the equipment management authority, and when an instruction of allowing execution of the target authority is received, running the operation corresponding to the target authority. According to the authority management method, the authority management device, the mobile terminal and the storage medium provided by the embodiment of the invention, by adding the prompt information, directly using the equipment management authority by a malicious program is avoided, and system performance and stability are promoted.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Metal-modified molecular sieve-based diesel oxidation catalyst and preparation and use methods thereof
ActiveCN111841622AImprove thermal stabilityImprove oxygen storage capacityMolecular sieve catalystsHeterogenous catalyst chemical elementsChemistryMolecular sieve
The invention discloses a metal-modified molecular sieve-based diesel oxidation catalyst which is prepared by taking a V / Mo / K ternary metal modified ZSM-5 type molecular sieve and Ag2O as main catalytic active components, CeO2 and ZrO2 as cocatalysts, and gamma-Al2O3 and SiO2 as coating base materials. The catalyst is coated in DOC, and PM, HC and CO in diesel engine exhaust can be efficiently purified. The main catalytic active component composed of a ternary metal modified molecular sieve and Ag2O is used for replacing precious metal in a traditional DOC catalyst, the raw material cost of the DOC catalyst is reduced, the sulfur resistance and thermal stability of the DOC catalyst are improved, and the purification performance of the novel DOC catalyst on carbonaceous components in PM isenhanced. The application of the ternary metal modified molecular sieve reduces the particle size of catalyst particles, increases the surface catalytic active sites of the catalyst per unit mass, andreduces the use amount of metal oxides.
Owner:HEFEI SHENZHOU CATALSIS PURIFIER CO LTD
Nervonic acid chemosynthesis method
ActiveCN103396304AHigh yieldMild reaction conditionsCarboxylic preparation by ozone oxidationMalonic acidNervonic acid
The invention discloses a nervonic acid chemosynthesis method and belongs to the technical field of chemosynthesis. The nervonic acid chemosynthesis method is characterized in that methyl cis-13-docosenoate(erucate) as a raw material is subjected to reduction, chlorination, diethyl malonate condensation and microwave decarboxylation to produce nervonic acid. The nervonic acid chemosynthesis method has the advantages of simple operation, high yield and good product quality.
Owner:广东固升医药科技有限公司
Composite electrolyte for pre-lithiation of lithium battery and application of composite electrolyte
The invention discloses a composite electrolyte for pre-lithiation of a lithium battery and an application of the composite electrolyte. The composite electrolyte comprises an electrolyte; an additiveis added into the electrolyte; and the additive can be decomposed into lithium ions, electrons and gas under a voltage condition of 1-3V. After a battery cell is formed, the lithium ions generated bydecomposition of the additive can be used for supplementing lithium ions consumed for generating an SEI film in a battery system, meanwhile the gas generated by decomposition can be exhausted by a normal exhaust process after formation, and the battery cell is not influenced, so that the purpose of the pre-lithiation of the battery is achieved. The direct use of lithium metal is avoided, and thepotential safety hazards caused by the lithium metal are reduced. In addition, the added lithium ions are generated by the decomposition of the additive dissolved in the system and can be fully dispersed in the electrolyte, and the pre-lithiation amount can be accurately controlled through the usage amount of the additive, so that the purpose of accurate and uniform pre-lithiation can be achieved,and the cycling performance and the first coulombic efficiency of the battery can be obviously improved.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY
Medical-service reservation method and device, storage medium and computer equipment
ActiveCN107798405AAvoid using directlyImprove the efficiency of medical service appointmentsReservationsHealthcare resources and facilitiesComputer equipmentThird party
The invention relates to a medical-service reservation method. The method includes: receiving a medical-service buying identifier which is sent by a terminal and corresponds to a medical service; receiving a medical-service reservation request if the medical-service buying identifier is consistent with a pre-stored medical-service buying identifier, which corresponds to the medical service, according to comparison, wherein the medical-service reservation request carries reservation application information of the medical service; sending the reservation application information to a third-partyservice platform to enable the third-party service platform to execute reservation application; and acquiring a reservation application result of the third-party service platform, and sending the reservation application result to the terminal. By adopting the method, medical-service reservation efficiency can be improved. In addition, the invention also provides a medical-service reservation device, a storage medium and computer equipment.
Owner:PING AN TECH (SHENZHEN) CO LTD
Method for preparing dimethylfuran through electrocatalytic hydrogenation of 5-hydroxymethylfurfural in proton exchange membrane reactor
InactiveCN108660477AReduce manufacturing costAvoid using directlyCellsElectrolytic organic productionElectrolysisOxygen
The invention discloses a method for preparing dimethylfuran through electrocatalytic hydrogenation of 5-hydroxymethylfurfural in a proton exchange membrane reactor. According to the method, a protonexchange membrane (PEM) electrolytic tank is adopted as the reactor for carrying out catalytic hydrogenation on HMF to form DMF, protons, electrons and oxygen are generated in anode electrolysis water, and the protons reach a cathode through a PEM; and in the cathode, the HMF is electrochemically reduced into the DMF by being combined with the protons generated from the anode electrolysis water. The method can be carried out under the conditions of the room temperature and barometric pressure and the condition of being free of outside hydrogen supply. Compared with a traditional DMF preparation method, the method is low in energy consumption and cost and high in productivity and has high practicality and good industrialization prospects.
Owner:HUANENG CLEAN ENERGY RES INST
Container capable of utilizing solar energy for power generation
ActiveCN102635253AAvoid using directlySolve supply problemsRoof covering using slabs/sheetsRoof covering using tiles/slatesElectricityElectrical battery
The invention provides a container capable of utilizing solar energy for power generation. The container comprises a container body and a first solar battery assembly, wherein the container body is provided with an inlet and outlet which is used for working personnel to enter and exit the container; the first solar battery assembly is connected with the container body and can be arranged at the outer side of the container body. In the container capable of utilizing solar energy for power generation, the inlet and outlet is arranged on the container body, and the interior of the container can be used as an office area; in addition, the first solar battery assembly is arranged at the outer side of the container body so as to receive solar energy for power generation and provide electricity for the container, thus avoiding direct use of electricity and automobile fuels, being used as an office area at construction factory areas where the energy supply is inconvenient, and further solving the energy supply problem at the office area.
Owner:YINGLI ENERGY CHINA
Digital currency encryption payment method and system
ActiveCN113393225ARealize completely anonymous transactionsAvoid using directlyPayment circuitsProtocol authorisationDigital currencyRing signature
The invention discloses a digital currency encryption payment method, and the method comprises the following steps: associating a user client to deploy a trusted node and a verification node, creating a distributed digital currency account book, establishing an SGX trusted execution environment and forming a block chain network, responding to a transaction payment request of a first client, creating a transaction request transaction by the trusted node, generating a public key, and carrying out ring signature on the transaction request transaction; enabling the second client side to be associated with the verification node to verify the ring signature, obtaining the transaction request transaction, executing the payment transaction and transmitting the corresponding payment transaction transaction to the public key address; and enabling the trusted node to analyze the payment transaction and obtain the corresponding digital currency; by using the method, completely anonymous encryption payment of the digital currency is realized, and the problems of privacy protection and double spam in the circulation process of the digital currency are really solved.
Owner:杭州链网科技有限公司
Method for preparing acetate by using clay-based solid acid
InactiveCN110801847AExtended service lifeReduce equipment costsOrganic compound preparationCarboxylic acid esters preparationEnvironmental chemistrySulfuric acid
The invention relates to a method for preparing an acetate by using a clay-based solid acid. The solid acid is prepared by using natural clay halloysite as a base material. Halloysite and tin tetrachloride are used to form a colloid, the colloid is subjected to aging and then acidification with sulfuric acid, an acetate solid catalyst with a large specific surface area is obtained, the prepared catalyst is added into a reactor, then acetic acid and an alcohol are continuously added, and a reaction is continuously carried out at 90-120 DEG C to obtain the acetate. The solid acid catalyst has excellent esterification reaction catalytic activity, higher efficiency, low preparation and use cost, low corrosion to equipment, and easy recovery and utilization, and the environmental protection andcost problems of industrial production of acetate products can be greatly reduced.
Owner:JINJIANG TAIXING CHEM IND CO LTD
Micro-fluorine glass etching and polishing method
The invention discloses a micro-fluorine glass etching and polishing method comprising the following steps: respectively grinding sodium fluoride and sodium sulfate, and then, mixing sodium fluoride, sodium sulfate, sodium dihydrogen phosphate, water and an active agent at a weight ratio of 10:(7-8):1:(5-6):5 to prepare an etching solution, and etching. Compared with the prior art, the micro-fluorine glass etching and polishing method has the advantages that firstly, a great deal of hydrofluoric acid is prevented from being directly used, and the used medicines are simple in recovery and can be completely recycled; secondly, the micro-fluorine glass etching and polishing method is high in etching speed, large in etching depth, good in etching uniformity, high in safety and capable of meeting the production and application requirements; thirdly, the environment protection and sustainable development concepts are achieved, the requirement for clean production is met, and the wastewater treatment method designed for the technology is used for ensuring that the treated wastewater can be up to the natural discharge standard.
Owner:陈锋
Single-image three-dimensional reconstruction method based on deep learning video supervision
PendingCN111950404AContinuityAvoid using directlyForecastingCharacter and pattern recognitionPattern recognitionPoint cloud
The invention provides a single-image three-dimensional reconstruction method based on deep learning video supervision. The single-image three-dimensional reconstruction method comprises the followingsteps: 1) constructing an object pose prediction module, wherein the position of camera shooting relative to an object can be obtained according to the object in an input image; 2) constructing an object three-dimensional shape estimation module: obtaining a three-dimensional point cloud of an input single object image through iterative optimization loss prediction; 3) constructing a multi-frameshape fusion module: inputting a video graph line sequence into the above two modules in parallel to obtain single-frame camera pose and three-dimensional shape prediction, and obtaining more accurateprediction through multi-frame weight fusion, consistency constraint and smoothness constraint; and 4) arranging an overall training framework which comprises three stages of data preprocessing, model framework training and testing. End-to-end three-dimensional reconstruction is realized, training can be performed by using a video sequence, and the three-dimensional point cloud can be predicted only by using a single image in a test stage.
Owner:NANJING UNIV
Blueberry pigment biscuit
The invention provides blueberry pigment biscuit, which is prepared from 100 to 150 parts of flour, 4 to 8 parts of floral blueberry powder, 60 to 100 parts of butter, 20 to 40 parts of egg and 30 to 60 parts of berry sugar. Fresh floral substances are extracted from blueberry fruit raw materials by a modern essence extraction technology; the trouble of problems of single flavor, the use of flavoring additive and the like of conventional biscuit is avoided. By using a heating flavoring mode, the people group naturally allergic to pollen can eat the blueberry pigment biscuit. The use range of the blueberry pigment can be expanded; the fresh flower and blueberry industry can be favorably combined for health development. The biscuit has the intense rose fragrance and antioxidant pigments; the color and the fragrance of the biscuit can be effectively improved. Compared with conventional biscuit, the biscuit has the advantages that the biscuit can realize natural red and uniform color and luster; the fresh flowers and the blueberries are combined, so that the effect of improving the quality of the conventional biscuit is achieved; the natural and health concept can be given to a product.
Owner:HUNAN XINGCHENG MINGYUE ECOLOGY AGRI TECH DEV CO LTD
Method for preparing furfuryl alcohol by catalyzing transfer hydrogenation of furfural through non-noble metal-loaded nitrogen-doped carbon
ActiveCN111087370ASynthetic raw materials are cheapSimple preparation processOrganic chemistryCatalyst activation/preparationPtru catalystAlcohol
The invention belongs to the technical field of furfuryl alcohol preparation, and discloses a method for preparing furfuryl alcohol by catalyzing transfer hydrogenation of furfural through non-noble metal-loaded nitrogen-doped carbon. According to the method, a cobalt oxide-loaded nitrogen-doped carbon catalyst is used for catalyzing furfural to prepare furfuryl alcohol, wherein nitrogen-doped carbon in the catalyst is a carrier, and cobalt oxide in the catalyst is an active component. According to the method, a nitrogen-doped carbon material loaded by cobalt oxide is used as the catalyst, organic alcohol is used as a solvent and a hydrogen donor, and transfer hydrodeoxygenation of furfural is catalyzed to synthesize furfuryl alcohol; the method is simple in the whole process, easy to operate and low in cost; a reaction system is green; the catalyst is high in activity; the furfuryl alcohol is high in selectivity and yield; and the method has wide industrial application prospects. H2 is prevented from being directly used, and the organic alcohol serves as the hydrogen donor, so storage and use are convenient, the requirement of a reaction solvent on hydrogen solubility is lowered,and hydrogenation effect is good.
Owner:SOUTH CHINA UNIV OF TECH
Special-shaped tooth dual labyrinth seal structure and special-shaped tooth impeller ring seal structure for nuclear main pump and with locating function
The invention belongs to the technical field of fluid machinery and clearance seals, and particularly relates to a special-shaped tooth dual labyrinth seal structure and a special-shaped tooth impeller ring seal structure for a nuclear main pump and with a locating function. Seal teeth of the special-shaped tooth dual labyrinth seal structure incline towards the fluid inlet side, an inwards-concave arc structure is adopted by the leeside, a small seal cavity of a parallelogram structure is formed on the upper portion of a large seal cavity of a parallelogram-like structure, and a dual labyrinth seal is formed. An impeller ring and the outer edge of an impeller water inlet and the impeller ring and the inner wall of the front edge of a guide vane are sealed through the special-shaped toothdual labyrinth seal structure. A seal gasket is arranged between the impeller ring and a pump case for axial locating, and liquid backflow is avoided. A special-shaped tooth shape correction coefficient constraint function is obtained through calculation based on bulk analysis, the optimal design key size can be determined within a short time, and the adverse effect of clearance leaking of the impeller ring to the nuclear main pump is reduced.
Owner:ZHEJIANG UNIV
Method for recycling aluminum ash as steelmaking deoxidation slag former
InactiveCN113234891AStable ingredient rangeQuality improvementProcess efficiency improvementSteelmakingAluminium electrolysis
The invention discloses a method for recycling aluminum ash as a steelmaking deoxidation slag former. The aluminum ash is scum generated in an aluminum electrolysis process, the air-dried aluminum ash is added with limestone and then ground into fine particles, the fine particles are uniformly stirred with a binder and water, and the deoxidation slag former is prepared after extrusion forming by using a mold and drying treatment. In the tapping process, a deoxidizing slag former is added in batches, slag is formed quickly by utilizing dynamic conditions during tapping, and the oxygen content in steel is reduced. According to the method, molten steel is deoxidized and slagging is performed by using metal aluminum and oxides thereof in the aluminum ash so that the burden of the aluminum manufacturing industry can be reduced, the economic benefit of a steel mill can be improved, the ecological environment can be improved, and the method has important practical significance.
Owner:INST OF RES OF IRON & STEEL JIANGSU PROVINCE +1
Epoxy resin manhole cover prepared by utilizing waste glass fibers and preparation method of manhole cover
InactiveCN110527250AIncrease usageReduce usageArtificial islandsUnderwater structuresScrapFlame resistance
The invention discloses an epoxy resin manhole cover prepared by utilizing waste glass fibers and a preparation method of the manhole cover. The manhole cover comprises the following components, in percentages by mass: 86-92.5% of an epoxy resin glass cloth, 6-12% of active calcium, and 1.5-2.8% of a curing agent, wherein the epoxy resin glass cloth comprises the following materials, in percentages by mass: 60-80% of a glass fiber cloth and 20-40% of epoxy resin coating the glass fiber cloth. According to the manhole cover and the preparation method of the manhole cover provided by the invention, the manhole cover comprises the following components, in percentages by mass: 86-92.5% of the epoxy resin glass cloth, 6-12% of the active calcium, and 1.5-2.8% of the curing agent, direct use offormaldehyde is avoided, and compared with the prior art, the method provided by the invention has the beneficial effects of recycling the glass fiber waste, turning the waste into treasure, improvingthe use amount of the waste glass fibers and reducing the use amount of the epoxy resin, thereby reducing the industrial costs; and the produced manhole cover has high strength, abrasion resistance,acid resistance, alkali resistance, flame resistance, insulation, good comprehensive mechanical properties, and long service life, and more importantly, the formaldehyde is not used, so that the manhole cover is green and environmentally friendly.
Owner:王小军
Nervonic acid chemosynthesis method
ActiveCN103396304BHigh yieldMild reaction conditionsCarboxylic preparation by ozone oxidationMalonic acidNervonic acid
Owner:广东固升医药科技有限公司
Method for preparing sevoflurane
ActiveCN101337863AIncrease profitHigh yieldEther preparation by organic exchangeStrong acidsDimethoxymethane
The invention relates to a method for preparing sevoflurane [fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl) ethyl ether], which comprises the following steps: reacting hexafluoroisopropanol with dimethoxymethane in the presence of a catalyst to obtain methoxymethylene hexafluoroisopropyl ether, and reacting methoxymethylene hexafluoroisopropyl ether with a fluoride in the presence of a strong acid to obtain the sevoflurane.
Owner:JIANGSU HENGRUI MEDICINE CO LTD +2
Blind hole circuit board and manufacturing method thereof
ActiveCN109413891AAvoid the problem of excessive plate thicknessEasy to control copper thicknessMultilayer circuit manufacturePrinted element electric connection formationSolder maskCopper foil
Owner:广东依顿电子科技股份有限公司
A kind of method for preparing antibacterial mildew-proof textile
InactiveCN104594024BImprove antibacterial propertiesEnhanced inhibitory effectVegetal fibresAir filtrationPolymer science
Owner:浙江汇千高飞新材料有限公司
Slice routing rule tamper-proofing method, terminal, network element and medium
ActiveCN113038477APrevent theftPrevent tamperingSecurity arrangementTamper resistanceTheoretical computer science
The invention provides a slice routing rule tamper-proofing method, a terminal, a network element and a medium. The method comprises the following steps: defining a description identifier used for describing an application identifier in a slice routing rule; establishing a relation mapping table between the description identifier of each application program and the respective application identifier of each application program; receiving a routing rule and a slice identification rule returned by the core network; judging whether the first application identifier and a description identifier mapped by the first application identifier exist in the relation mapping table or not; if the first application identifier and the description identifier mapped by the first application identifier exist, matching the corresponding first application program with the routing rule and the slice identifier rule based on the first application identifier and the description identifier mapped by the first application identifier. According to the embodiment of the invention, at least the security of the URSP rule can be effectively improved, and an unauthorized application program is prevented from illegally using the slicing service.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD
Method for preparing sevoflurane
The invention relates to a method for preparing sevoflurane [fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl) ethyl ether], which comprises the following steps: reacting hexafluoroisopropanol with dimethoxymethane in the presence of a catalyst to obtain methoxymethylene hexafluoroisopropyl ether, and reacting methoxymethylene hexafluoroisopropyl ether with a fluoride in the presence of a strong acid to obtain the sevoflurane.
Owner:JIANGSU HENGRUI MEDICINE CO LTD +2
A safe intelligent payment watch based on block chain technology
InactiveCN109241717AImprove comfortImprove securityTime-pieces with integrated devicesPayment architecturePaymentFingerprint
The invention relates to a safe intelligent payment watch based on block chain technology, including a main body, a first watch band, a second watch band, a buckle, a warmer and a screen, the main body is provided with a processor, a memory, a heating mechanism and an ejection mechanism, the ejection mechanism includes a protruding slot, a stop plate, a dust shield, two limit units and two returnunits. By The heat mechanism and the heating mechanism, the intelligent payment watch can heat up the heating plate, so that the temperature of the smart payment watch rises to the body temperature ofpeople, the comfort of the smart payment watch is improved, beside, the intelligent payment watch can enable people to eject the two-dimensional code after the fingerprint identification through thescreen when using the payment function through the pop-up mechanism, thereby preventing others from directly using the two-dimensional code, and improving the safety of the smart payment watch.
Owner:SHENZHEN LEILING GUANGTONG TECH DEV CO LTD
Composite cheese liver flavor attractant and preparation method thereof
Owner:成都大帝汉克生物科技有限公司
Modified bio-based high-performance water reducing agent and preparation method thereof
The invention discloses a modified bio-based high-performance water reducing agent and a preparation method thereof. The modified bio-based high-performance water reducing agent comprises the following components in parts by weight: 85-95% of a double-bond-activated lignin derivative, 2-8% of reducing sugar, 1-6% of unsaturated carboxylic acid, 0.8-1.5% of an initiator oxidation component, 0.2-0.5% of an initiator reduction component, 0.5-1.0% of a backing material chain transfer agent, 0.2-0.8% of a material A chain transfer agent and a catalyst with the final concentration of 2.5-10 ppm. The prepared water reducing agent has a certain comb-shaped structure and a large number of carboxyl adsorption groups and has a good adsorption and dispersion effect on cement particles under the condition of a low mixing amount, and concrete mixed with the high-performance water reducing agent has excellent fluidity and fluidity maintaining performance. Meanwhile, the preparation method provided by the invention can reduce the dependence of high-performance water reducing agent production on petrochemical products, and realizes high-value utilization of biomass industrial byproducts.
Owner:CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD
Synthesis method of 5-bromo-2-furaldehyde
The invention discloses a synthesis method of 5-bromo-2-furaldehyde, which comprises the following steps: preparation of brominating agent: reacting N-methylimidazole and bromo-n-butane to generate bromo-1-butyl-3-methylimidazole, and reacting with bromine to obtain the brominating agent ionic liquid tribromo-1-butyl-3-methylimidazole; and bromination: adding furaldehyde into the prepared brominating agent to carry out bromination reaction, thereby generating the target product 5-bromo-2-furaldehyde. The invention avoids directly using the bromine, thereby enhancing the reaction cleanness of the industrial preparation and reducing the environmental pollution. The method disclosed by the invention enhances the product yield and purity. The yield is enhanced by nearly 9% as compared with the existing industrial traditional method; and in the method disclosed by the invention, the total yield is up to 87.6%, the product purity exceeds 96%, and other indexes are also enhanced correspondingly.
Owner:HEFEI UNIV OF TECH
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