Patents
Literature
501results about How to "Stable storage" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Liquid storage type micro-fluidic chip and working method thereof
ActiveCN119657250AImprove sealingavoid cross contaminationMicrobiological testing/measurementLaboratory glasswaresPathogenic microorganismExperimental laboratory
The invention discloses a liquid storage type micro-fluidic chip and a working method thereof. The chip comprises a chip body, a sealing film and gum, the sealing film and the back adhesive are respectively bonded on the front surface and the back surface of the chip body; a plurality of solution storage cavities are formed in the chip body, outflow runners at the bottoms of the solution storage cavities are connected with corresponding first runners, sealing partition pieces are arranged on the first runners, the outflow runners and the corresponding first runners are blocked through the sealing partition pieces, and the first runners are communicated with second runners through corresponding gum runners. The whole experiment process does not need to be externally connected with a reagent bottle, the purposes of instant detection, preparation and sample separation of the micro-fluidic chip can be achieved, the detection time is greatly shortened, and the experiment steps are simplified. Waste liquid generated in the experiment process flows into the waste liquid cavity, and cross contamination of a laboratory is avoided. The chip provided by the invention can be used for identifying the species of pathogenic microorganisms.
Owner:ZHIMEI TIMES BIOLOGICAL INTELLIGENT TECH (BEIJING) CO LTD +1
Photoelectric wafer defect detection method
InactiveCN119650451AImprove stabilityAccurate detectionSemiconductor/solid-state device testing/measurementOptically investigating flaws/contaminationMicron scaleWafer
The invention discloses a photoelectric wafer defect detection method, and belongs to the technical field of semiconductors. The detection method comprises the steps that the surface of a photoelectric wafer is covered with a quantum dot precursor solution, annealing is carried out, after a quantum dot film is formed, irradiation is carried out under ultraviolet light, a displayed fluorescence signal can mark defects on the surface of the photoelectric wafer, and the purpose of detecting the defects of the photoelectric wafer is achieved. The quantum dots used in the invention have excellent fluorescence efficiency and stability, and can provide a high-contrast marking effect in an SEM image. Therefore, the detection of micron-scale and nano-scale defects is more accurate, and the details are clearer. A traditional fluorescence labeling solution is limited in infiltration capacity in nanoscale defects and can only cover the surface. The quantum dots can penetrate into the defect to form a mark with the depth ratio as high as 1: 3. The depth marking capability is helpful for comprehensively knowing the internal structure of the defect and the defect extension condition. In addition, the quantum dots have excellent adaptability and multifunctionality, and show good stability and coupling effect under different types of wafer conditions.
Owner:BEIJING INST OF TECH
Compressed carbon dioxide energy storage system for double-liquid storage
PendingCN119531975AStable storagestable outputHeat storage plantsEvaporators/condensersLiquid storage tankEnergy storage efficiency
The invention relates to the technical field of compressed carbon dioxide energy storage, and provides a double-liquid-state storage compressed carbon dioxide energy storage system, which comprises a heat pump loop, a first multi-stream heat regenerator, a compressor, a cooler and a first turbine, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator and a second turbine, and the power generation loop comprises a high-pressure CO2 liquid storage tank, a high-pressure working medium pump, a second multi-stream heat regenerator, a heater, a second turbine, a precooler and a condenser. CO2 flows in the heat pump loop and the power generation loop to serve as a working medium, and low-pressure CO2 liquid and high-pressure CO2 liquid are stored in the low-pressure CO2 liquid storage tank and the high-pressure CO2 liquid storage tank and used for the heat pump loop and the power generation loop respectively. By using the CO2 liquid, the pressure in the tank can be maintained during release, the output flow is ensured, and the output of the system is stable. And meanwhile, CO2 liquid can be output through the high-pressure working medium pump, pressure loss caused by throttling is avoided, and the energy storage efficiency is improved. And through liquid storage tank storage, the storage tank volume can be reduced, and the energy storage cost is reduced.
Owner:JIAXING RES INST ZHEJIANG UNIV +2
Genetically engineered exosome as well as slow release method and application thereof
PendingCN119391645Aguaranteed functionefficient deliveryOrganic active ingredientsSkeletal/connective tissue cellsDiseaseAURKA Gene
The invention discloses a gene engineering exosome and a slow release method and application thereof, the gene engineering exosome is derived from human adipose-derived stem cells, si-tgfbr2 is loaded in the gene engineering exosome, the si-tgfbr2 is specific siRNA aiming at a Tgfbr2 gene, and the gene engineering exosome can regulate and control proliferation of VSMCs, inhibit transformation of the VSMCs from a contraction phenotype to a synthetic phenotype when the VSMCs are stimulated, and inhibit the growth of the VSMCs. According to the present invention, the gene engineering exosome can be used to maintain the normal structure and the function of the blood vessel, and the sustained release effect of the content in the gene engineering exosome can be achieved by wrapping the gene engineering exosome in the PHA biodegradable material, such that the local treatment concentration can be easily stabilized, the drug administration frequency can be easily reduced, the lasting time of the treatment effect can be easily prolonged, and the treatment gene can be effectively delivered to the target cell; the treatment effect is improved; when being used for modifying a small-caliber artificial blood vessel, the small-caliber artificial blood vessel can be improved in biocompatibility and functionality, and can be prevented from being implanted into the blood vessel for remodeling unbenign hyperplasia stenosis; the invention not only provides a new thought and method for the treatment of vascular diseases, but also has important clinical application value and popularization prospect.
Owner:FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
Liquid titanium catalyst as well as preparation method and application thereof
The invention discloses a liquid titanium catalyst as well as a preparation method and application thereof. The liquid titanium catalyst is prepared by reacting tetraisopropyl titanate, organic estersil, hydroxy carboxylic acid, an anti-hydrolysis agent, an antioxidant, phosphate and metal acetate in an alcohol solvent system. The catalyst is prepared by taking a titanium element as a main catalyst to react with hydroxy carboxylic acid in an alcohol solvent, adding organic estersil to introduce a silicon element at the same time, adding an antioxidant, phosphate and another metal acetate into the obtained reaction intermediate to further react, and heating to remove small molecules. The catalyst can be added into a raw material for synthesizing biodegradable polyester directly or after being diluted and dissolved in BDO to be used as a biodegradable polyester catalyst, and a biodegradable polyester product with various excellent performances can be prepared.
Owner:RUITUOFENG HI TECH CO LTD
Bacillus subtilis and application thereof in corn disease control
PendingCN119552780AStrong stress resistanceStable storageBiocidePlant growth regulatorsBiotechnologyMicrobial agent
The invention belongs to the technical field of biological prevention and control of plant diseases, and provides bacillus subtilis and application thereof in prevention and control of corn diseases. The preservation number of the bacillus subtilis SEB-34 is CGMCC (China General Microbiological Culture Collection Center) No. 26419. The invention also provides a microbial agent produced by using the SEB-34 strain, and the microbial agent can be used for preventing and treating plant diseases caused by fusarium graminearum or pelamys maydis. The bacillus subtilis provided by the invention is applied through seed treatment before sowing or root drip irrigation after seedling emergence, has the effects of preventing diseases, promoting growth and increasing yield, and can effectively reduce the occurrence of corn southern leaf blight and basal stem rot. The microbial agent provided by the invention is in a semi-dormant state, has relatively strong stress resistance, is more stable to store, ensures the effect, and effectively reduces the production and transportation cost at the same time. The invention also provides beneficial microbial resources for green prevention and control of corn diseases, and has good application prospect and high application value.
Owner:SHANDONG ACADEMY OF AGRICULTURAL SCIENCES
Dry and comfortable antibacterial menstrual period trousers and preparation method thereof
InactiveCN119499427Aincrease elasticityblock deliveryLiquid surface applicatorsAdhesive articlesSophocarpidineMedicine
The invention discloses dry and comfortable antibacterial menstrual period pants and a preparation method thereof, and belongs to the technical field of female hygienic products, and the preparation method comprises the following steps: beta-cyclodextrin and sophocarpidine are utilized to form a superfine capsular inclusion compound, the superfine capsular inclusion compound is adsorbed on the surface of macroporous super absorbent resin to form antibacterial composite resin powder, and the antibacterial composite resin powder is sprayed on the surface of a composite aerogel sheet; when meeting blood, the affinity of water molecules to external hydroxyl groups of cyclodextrin is enhanced, so that the binding force of matrine and beta-cyclodextrin is weakened, and matrine is released; the antibacterial composite resin powder expands when encountering water, compresses and promotes the release of the nano antibacterial inclusion compound loaded on the surface, so that the release of the matrine contained in the antibacterial composite resin powder is accelerated, and a rapid and highly-targeted antibacterial effect is realized; the composite aerogel sheet can improve the resilience force of the menstrual period trousers, has an extremely high specific surface area, a nanoscale hole structure and an extremely low heat conductivity coefficient, and can effectively prevent heat transfer and improve air permeability.
Owner:AIFU (SHANGHAI) BIOTECHNOLOGY CO LTD
Substitute matrix for detecting folic acid and 5-methyltetrahydrofolic acid and application of substitute matrix
PendingCN119510783AStable storagePreparing sample for investigationBiological testingWhole blood unitsPreservative
The invention relates to the technical field of analysis and detection, in particular to a substitute matrix for detecting folic acid and 5-methyltetrahydrofolic acid and application of the substitute matrix. The alternative substrate comprises a preservative and a rabbit whole blood diluent; the rabbit whole blood diluent comprises rabbit whole blood and normal saline; the rabbit whole blood accounts for 25%-75% of the volume of the rabbit whole blood diluent. The invention provides a substitute matrix for detecting folic acid and 5-methyltetrahydrofolic acid, which not only can meet the matrix effect requirement, but also can be stably stored for a long time, can be applied to the production and use of folic acid detection reagents or kits, and has important significance on the market-oriented popularization and application of whole blood folic acid detection kits.
Owner:北京豪思生物科技股份有限公司 +3
Dual-control storage server based on domestic processor, data processing method and computer program product
InactiveCN119473984AImprove fault toleranceensure safetyElectric digital data processingInformation processingSoftware engineering
The invention discloses a dual-control storage server based on a domestic processor, a data processing method and a computer program product. The server comprises a pair of node controller assemblies, a hard disk module and a backboard, controllers are mutually independent and can process external requests in parallel, the backboard is provided with at least 24 interfaces, and the hard disk module comprises at least 24 disk positions. Two independent controllers are arranged, when one controller breaks down, the other controller immediately takes over work of the controller, and it is ensured that the server operates uninterruptedly. The redundancy design greatly enhances the fault-tolerant capability of the server, and meanwhile, the 24 disk positions can support the large-scale storage requirement and the hot plug function of a large enterprise. According to the data processing method, the autonomous system architecture of a domestic processor and the research and development achievement of domestic software are fused, the two controllers are synchronized, data load balancing is achieved, the safety and stability of data are enhanced, and efficient and reliable information processing and data storage services are achieved for users.
Owner:SHANGHAI HUACHENG JINRUI INFORMATION TECH CO LTD
Fabric winding device
The utility model discloses a fabric winding device which comprises a base, a first connecting end, a second connecting end, an air swelling shaft and a winding motor, a first connecting shaft is rotationally connected to the first connecting end, a first connecting arm is fixed to the first connecting shaft, and the winding motor is installed at the end, away from the first connecting shaft, of the first connecting arm. A first turnover motor is arranged on the first connecting end, a second connecting shaft is arranged on the second connecting end, a second connecting arm is arranged on the second connecting shaft, a sliding sleeve is arranged at one end of the second connecting arm, a key groove is formed in the inner wall of the circumferential side of the sliding sleeve, and a positioning key embedded in the key groove is arranged on the outer wall of the second connecting shaft; a sliding air cylinder is arranged on the second connecting shaft, a supporting sleeve is arranged at the end, away from the second connecting shaft, of the second connecting arm, a movable seat is further arranged on one side of the base, a supporting plate for supporting a fabric barrel is arranged on the upper side of the movable seat, a vertical plate is arranged at one end of the movable seat, and an arc-shaped groove for embedding of an air expansion shaft is formed in the vertical plate.
Owner:绍兴通盛印染有限公司
Composite current collector, preparation method thereof and secondary battery
ActiveCN119297293AImprove mechanical propertiesImprove structural stabilityElectrode carriers/collectorsSecondary cellsFoaming agentElectrical battery
The invention relates to the technical field of secondary batteries, in particular to a composite current collector, a preparation method thereof and a secondary battery. The composite current collector comprises a supporting layer, a safety coating, a protective coating and a conductive layer which are stacked in sequence, the supporting layer comprises a polymer material and a two-dimensional nanobelt material; the safety coating comprises a binder and an inorganic foaming agent, and the thermal decomposition temperature of the inorganic foaming agent is 80-130 DEG C; and the protective coating comprises a high-entropy alloy material. The composite current collector provided by the invention is good in conductivity, high in structural stability and excellent in safety performance, the probability of thermal runaway of the battery at a high temperature can be reduced, and the cycle performance of the battery under a normal working condition can be improved.
Owner:SHENZHEN HANKE NEW MATERIAL TECH CO LTD
Microfluidic electrochemical aptamer sensor and microfluidic electrochemical analysis system
PendingCN119290991AQuick checkrapid diagnosisLaboratory glasswaresMaterial electrochemical variablesAdenosineElectrochemistry
The invention relates to a microfluidic electrochemical aptamer sensor and a microfluidic electrochemical analysis system. According to the invention, a series of important biomarkers such as adenosine, homocysteine and the like in a blood sample of an organism can be rapidly and accurately quantitatively detected, so that the health condition of the organism can be judged for subsequent treatment. In addition to instant and rapid detection, the device is moderate in size and weight, convenient to carry and suitable for detecting the body health condition in various environments such as hospitals, families and fields, and the obtained physiological parameters are used for giving an early warning to the health condition of people.
Owner:EAST CHINA UNIV OF SCI & TECH +2
A distributed intelligent control system
ActiveCN115202419BStable storageImprove the environmentEfficient regulation technologiesTotal factory controlEnvironmental regulationLight guide
The invention discloses a distributed intelligent control system, which belongs to the technical field of temperature and humidity control. It can implement targeted control measures according to environmental monitoring results, actively control the preservation environment of cultural relics, improve the collection and preservation capacity of cultural relics and the level of environmental control; open up the path between the environmental monitoring system and the environmental control equipment, realize the stable environment of the museum, and change the short-term periodic fluctuation of temperature and humidity caused by the frequent switching of the constant temperature and humidity unit system and the inaccurate real-time temperature and humidity feedback through uninterrupted intelligent control, so as to provide a relatively stable preservation environment for cultural relics; in addition, through the setting of the air-inducing light-guiding tube, the air outlet of the air duct is effectively monitored, and the influence of the abnormal air outlet of the air duct on the control efficiency of the temperature and humidity in the cultural relics storage compartment is effectively avoided, and the staff can be reminded in time to intervene in the abnormal situation, thereby greatly reducing the influence of the abnormal situation on the temperature and humidity change amplitude of the storage environment.
Owner:西安元智系统技术有限责任公司
Portable multi-parameter water quality detection and analysis combined device
ActiveCN222618541USimple structureeasy to carryMaterial analysis by electric/magnetic meansColor/spectral properties measurementsWater qualityEngineering
The utility model discloses a portable multi-parameter water quality detection and analysis combined device which comprises a box body, a box cover is hinged to one side of the box body, a clamping mechanism is installed on the other side of the box body and matched with the box cover, a water quality detector body is installed in the box body, and a water quality detector is installed in the box body. A test tube fixing area, a reagent bottle storage area, a printing area, a detection area, a colorimetric area and a display area are arranged on the water quality detector main body, a plurality of fixing assemblies are arranged on the test tube fixing area, each fixing assembly comprises a fixing disc and a rotating disc rotationally connected with the fixing disc, and a fixing block for fixing a test tube is hinged to the rotating disc; a residual chlorine detection electrode, a pH detection electrode, a conductivity detection electrode and a dissolved oxygen detection electrode are arranged in the detection area, a plurality of uniformly distributed colorimetric grooves are arranged in the colorimetric area, and colorimetric tubes are arranged in the colorimetric grooves. The portable multi-parameter water quality detection and analysis combined device is simple in structure, convenient to carry, diversified in function and capable of detecting various parameters of water quality.
Owner:HEBEI CONSTR GROUP INSTALLATION ENGCO +1
Bulk material hanging hopper for building construction
ActiveCN222312522Uensure safetyStable storageLoad-engaging elementsArchitectural engineeringMechanical engineering
The utility model relates to the field of hoisting hanging elements, in particular to a building construction bulk material hanging hopper which comprises a hanging cage frame and a bottom drawing rod, the hanging cage frame comprises a bottom cross rod, a top cross rod and a hanging cage stand column, the top cross rod is located at the top of the bottom cross rod, and the hanging cage stand column is located between the bottom cross rod and the top cross rod. The two ends of the cage stand column are fixedly installed on the bottom transverse rod and the top transverse rod respectively. The bulk material hanging hopper for building construction further comprises a hanging cage rib plate, the hanging cage rib plate is located between the bottom transverse rod and the top transverse rod, the two ends of the hanging cage rib plate are fixedly installed on the bottom transverse rod and the top transverse rod respectively, a rib plate drawing hole is formed in the hanging cage rib plate in a penetrating mode, and the rib plate drawing hole is located in the top of the bottom transverse rod. And the bottom drawing rod is arranged in the rib plate drawing hole in a penetrating manner. The bulk material lifting hopper for building construction has the effect of ensuring the safety of the bulk material lifting hopper for building construction.
Owner:GUANGZHOU PEARL RIVER CONSTR DEV CO LTD
Lactobacillus delbrueckii subsp. Bulgaricus and application thereof
ActiveCN119570690Aefficient decompositionnot perishableMilk preparationBacteriaBiotechnologyMicroorganism
The invention belongs to the technical field of microorganisms, and relates to lactobacillus delbrueckii subsp. Bulgaricus and application thereof. The invention provides a strain of Lactobacillus delbrueckii subsp. Bulgaricus, the strain of Lactobacillus delbrueckii subsp. Bulgaricus is named as Lactobacillus delbrueckii subsp. Bulgaricus, the Lactobacillus delbrueckii subsp. Bulgaricus is preserved in China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.32206. The invention also provides a preparation method of the Lactobacillus delbrueckii subsp. Bulgaricus. The method has the effects of enhancing the texture characteristics of the goat milk, reducing the goaty smell of the goat milk and the like, and has important significance on promoting the development of the goat milk industry.
Owner:SHENZHEN RESEARCH INSTITUTE OF NORTHWEST A & F UNIVERSITY
Epoxy modified room temperature self-crosslinking water-based acrylate dispersion as well as preparation method and application thereof
The invention discloses an epoxy modified room-temperature self-crosslinking water-based acrylate dispersion as well as a preparation method and application thereof, and belongs to the field of water-based acrylic resin. The dispersoid is obtained by extracting an organic solvent from an acrylate polymer, adjusting the pH value to 7.5-8.5, mixing with ionized water and binary hydrazide, dispersing and filtering. The acrylate polymer is obtained by carrying out solution polymerization on a mixed solution of a part of initiator, a hard monomer, a soft monomer, a first type of hydrophilic monomer, a second type of hydrophilic monomer, epoxy resin and a combined cross-linking monomer and a residual initiator dissolved in an organic solvent at 80-83 DEG C, wherein the mixed solution is prepared from the initiator, the hard monomer, the soft monomer, the first type of hydrophilic monomer, the second type of hydrophilic monomer, epoxy resin and the combined cross-linking monomer. The main solvent of the dispersion is water, the viscosity is low, and the content of the organic solvent is 1t; the water-based ink has the advantages of low content of VOCs (volatile organic compounds), multiple cross-linked network structure, high cross-linking degree (78-83%), excellent resolubility after being prepared into ink, good adhesive force on a plastic film, good water resistance, good storage stability and high glossiness.
Owner:SOUTH CHINA UNIV OF TECH
Preservation reagent, preservation method and detection method for fat-soluble vitamins D2, D3, A and E in peripheral blood
ActiveCN119470730AReduce the difficulty of operationGood precisionComponent separationBiotechnologyTriglyceride
The invention discloses a preservation reagent, a preservation method and a detection method for fat-soluble vitamins D2, D3, A and E in peripheral blood. The preservation reagent comprises the following components: 1-15% of a PBS (Phosphate Buffer Solution) (v / v), 80-95% of a sodium chloride solution (v / v), 0.5-2.5% of Tris-HCl (v / v) and 0.5-2.5% of a stabilizer (w / v). According to the preservation reagent and the preservation method, fat-soluble vitamins D2, D3, A and E in the human whole blood sample can be stably preserved for 28 days at the temperature of 2-8 DEG C under the dark condition, preservation and transportation of the human whole blood sample are facilitated, and detection of the fat-soluble vitamins is facilitated. The precision and accuracy of detection can be improved, and interference of triglyceride, bilirubin and the like on detection of fat-soluble vitamins can be avoided.
Owner:JIANGSU BIOPERFECTUS TECH CO LTD
Multi-new-energy combined power generation device
InactiveCN119288730ARealize diversified useImprove utilization efficiencyWind energy with electric storageWind motor supports/mountsNew energyElectric generator
The invention relates to the technical field of new energy power generation, and discloses a multi-new-energy combined power generation device which comprises a water channel and two power generators, a wind power driving mechanism used for converting wind power into kinetic energy is arranged at the upper end of the water channel, and a hydraulic power driving mechanism used for converting flowing water flow into kinetic energy is arranged in the water channel. According to the multi-new-energy combined power generation device, by combining two renewable energy sources of wind power and hydraulic power, diversified utilization of energy sources is achieved, the energy utilization efficiency is improved, meanwhile, the energy utilization efficiency is improved, and meanwhile, the energy utilization efficiency is improved. The arrangement of the speed change mechanism and the clutch mechanism enables the device to adjust power output according to actual needs, the flexibility and adaptability of the device are enhanced, in addition, the introduction of the power storage mechanism also ensures the stable supply and storage of electric energy, and a powerful guarantee is provided for the continuous operation of the device.
Owner:SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
Multi-layer glass storage sealing box
ActiveCN222512411UStable storageGuaranteed versatilityExternal fittingsInternal fittingsServoAutomation
The utility model relates to a multilayer glass storage sealing box, which comprises a box body (1), a door body (2) and a base (3), and is characterized in that an opening is arranged on one side surface of the box body (1), a plurality of layers of positioning surfaces (103) are arranged in the box body (1), the door body (2) is arranged at the opening of the box body, two fan filtering units (4) are arranged at the top of the box body (1), and the base (3) is arranged at the bottom of the box body (1). According to the sealing box, the whole sealing box has the advantage of high automation in the mode that the sealing box is driven by the servo motor and matched with the carrying robot AGV, meanwhile, the cleanliness of the internal environment of the sealing box is guaranteed through the arrangement of the fan filtering unit, and therefore the good dustproof effect is achieved.
Owner:MIRLE AUTOMATION TECHNOLOGY (SHANGHAI) CO LTD
Varicella-zoster virus gB protein mutant and application thereof
PendingCN119306808AStable storageImproving immunogenicityViral antigen ingredientsVirus peptidesChickenpoxHerpes zoster virus
The invention belongs to the field of biological medicine, and particularly relates to a varicella-zoster virus gB protein mutant and application thereof. According to the gB protein mutant of the varicella-zoster virus, provided by the invention, proline mutation, shearing of N-terminal and C-terminal structural domains, release of electrostatic repulsive force in the protein, mutation of a Frelin enzyme cutting site and the like are carried out in a process of converting a gB protein fusion precursor into a fusion afterbody conformation, so that the gB protein mutant of the varicella-zoster virus is obtained. The conformation before fusion can be stabilized, and the expression quantity and the stability of the antigen protein are improved. As a vaccine component, the mutant has good immunogenicity, activates autoimmunity of animals and plays a role in prevention or treatment of vaccines.
Owner:SUZHOU YUZHIBO BIOLOGICAL TECH CO LTD
PH responsive polymer nano-micelle as well as preparation method and application thereof
PendingCN119591806AStable storageImprove stabilityEssential-oils/perfumesDepolymerizationControl release
The invention relates to a pH responsive polymer nano-micelle as well as a preparation method and application thereof. The pH-responsive polymer nano-micelle based on a polyethylene glycol unit and a diisopropylamino unit forms a compact nano-micelle protection perfume in the storage process, fundamentally solves the problem of poor stability of the perfume, and when the pH value is lower than the critical pH value, the stability of the perfume is greatly improved due to the accurate switching performance in the use process. The effect of controlling the release of the perfume is achieved through the depolymerization of the compact nano-micelles; meanwhile, the perfuming agent has excellent universality, meets the requirement for precise release of different perfumes under different environmental conditions, and is suitable for various perfuming products such as hydrophilic daily cosmetics, cleaning products and indoor air fresheners. Compared with the prior art, the amphiphilic block polymer has the advantages that the stability and the selectivity of the amphiphilic block polymer are improved, and the high sensitivity and the precise controlled release performance of the amphiphilic block polymer as a nano-micelle are also improved.
Owner:SHANGHAI INST OF TECH
Lead-free composite soldering paste with high spreading rate and preparation method
InactiveCN119525814AImprove wettabilityImprove printing effectWelding/cutting media/materialsSoldering mediaAcrylic resinActive agent
The invention belongs to the technical field of lead-free solder paste preparation, and discloses a lead-free composite solder paste with a high spreading rate and a preparation method. The lead-free composite soldering paste comprises soldering powder and soldering flux. The soldering flux is prepared from modified rosin, an activating agent, a surface active agent, a thixotropic agent, thermosetting resin, an antioxidant, a corrosion inhibitor and an organic solvent. The activating agent comprises hydroxy acrylic resin, terephthalic acid and ethylene bis stearamide. The prepared lead-free composite soldering paste is good in wettability, good in printability, low in corrosivity and less in residue, can effectively inhibit the occurrence of undesirable welding phenomena such as tin beads, dewetting and collapse, greatly reduces the reject ratio of printing, and improves the reliability of welding; the preparation method of the lead-free composite soldering paste is simple and easy to operate, raw materials are easy to obtain, and the lead-free composite soldering paste is suitable for industrial popularization.
Owner:深圳市华远金属有限公司
Preserving solution for preserving host and gram-negative bacterium nucleic acid in faeces sample
The invention provides a preserving fluid for preserving host and gram-negative bacterium nucleic acid in an excrement sample, and particularly discloses an excrement preserving fluid capable of effectively splitting and releasing host intestinal cast-off cell DNA and gram-negative bacterium DNA and splitting gram-positive bacterium DNA less. Therefore, the Gram-negative pathogenic bacteria can be used for screening various Gram-negative pathogenic bacteria and can also be used for primary screening and general survey of diseases such as colorectal cancer of a host, and interference of nucleic acid of Gram-positive bacteria on detection is remarkably reduced.
Owner:JIANGSU COWIN BIOTECH CO LTD +2
Rabies vaccine and preparation method thereof
PendingCN119488585ASimple processsafeSsRNA viruses negative-senseViral antigen ingredientsMutated proteinNucleotide
The invention discloses a rabies vaccine and a preparation method thereof. The rabies virus G truncated mutant protein comprises a circular RNA (Ribonucleic Acid) molecule for coding rabies virus G truncated mutant protein and a pharmaceutically acceptable carrier, wherein the amino acid sequence of the rabies virus G truncated mutant protein is as shown in SEQ ID No.13 or a degenerate sequence thereof, and the nucleotide sequence is as shown in SEQ ID No.14 or a degenerate sequence thereof; the nucleotide sequence of the circular RNA molecule is as shown in SEQ ID No. 20. At present, RNA vaccines for resisting rabies virus infection are not applied in batches, the optimized rabies virus G protein circular RNA molecules and the optimized lipid nanoparticles are used for preparing the vaccines, and the process can be industrially amplified. The animal can be induced to generate a high-level neutralizing antibody and a more lasting drug effect only by injecting a low-dose circular RNA vaccine (16 [mu] g / vaccine) once, the vaccine is good in safety and stability, and a basis is provided for industrial preparation and application of the vaccine.
Owner:SHANGHAI SHENRAY UNITED BIOMEDICAL CO LTD
Constant temperature module for multi-gas control cabinet
ActiveCN119414907AGuaranteed uptimeStable storageSimultaneous control of multiple variablesTemperature controlNitrogen gas
The invention relates to the technical field of temperature control, in particular to a constant temperature module for a multi-gas control cabinet, which comprises a low-pressure nitrogen tank, a high-pressure nitrogen tank, a pressure regulating valve, a heat exchanger, a booster pump, a temperature sensor and a gas leakage detection sensor, the low-pressure nitrogen tank and the high-pressure nitrogen tank are connected with the two input ends of the pressure regulating valve through pipelines respectively, and the two input ends are connected with a first electromagnetic valve and a second electromagnetic valve respectively. Compared with a traditional method, the technical scheme is combined with a high-low pressure nitrogen system, nitrogen in different pressure states is provided through the low-pressure nitrogen tank and the high-pressure nitrogen tank, and high-pressure nitrogen heat release or low-pressure nitrogen heat absorption can be flexibly selected to adjust the temperature according to the change of the temperature in the cabinet body. Compared with some traditional constant temperature devices which only adopt a single heating or cooling mode, the module can more accurately adapt to different temperature requirements, more accurate constant temperature control is achieved, and it is ensured that the interior of the cabinet body is always in a suitable temperature environment.
Owner:ANHUI JANUARY TECH CO LTD
Foldable dish rack
Owner:GUANGDONG WIREKING HOUSEWARES&HARDWARE CO LTD
Preservation device for microorganism sampling
ActiveCN222512455Uavoid enteringprevent spoilageRemovable lids/coversSealingBiotechnologyMicroorganism
The utility model relates to the technical field of preservation devices, in particular to a preservation device for microorganism sampling. The technical problems that according to an existing preservation device, due to the fact that preservation conditions and types of different microorganisms are different, mutual isolation between samples stored in glass bottles is poor, cross contamination is likely to happen when bottle caps are opened and closed for storage, meanwhile, air and other pollutants are likely to enter the bottles when the bottle caps are frequently opened for storing the samples, and the storage time is shortened are solved. The sample is polluted, and the preservation quality of the sample is influenced. According to the technical scheme, the preservation device for microorganism sampling comprises a storage tank, a sealing assembly, a storage assembly and a control assembly; the sealing cover is combined with the sealing strip to be buckled and sealed with the storage tank, so that air and external pollutants are effectively prevented from entering the storage tank, microorganism samples in the storage tank are protected from being influenced by external factors, meanwhile, the situation that the samples in the storage tank are leaked or volatilized to cause deterioration of the samples is avoided, and the storage stability of the microorganism samples is improved.
Owner:GUANGDONG HUANLIAN TESTING TECH CO LTD
Scheduling optimization method, system and equipment of off-grid wind power AWE system and medium
PendingCN119558614Acarbon reductionreduce economyForecastingDesign optimisation/simulationControl engineeringSystems simulation
The invention belongs to the technical field of energy utilization optimization, and discloses an off-grid wind power AWE system scheduling optimization method, system, device and medium, and the method comprises the steps: constructing an off-grid wind power AWE system simulation model which comprises a wind power generation simulation model and a to-be-scheduled electrolytic cell simulation model; constructing an IES system scheduling framework, introducing a stepped carbon transaction mechanism into the IES system scheduling framework, and combining the off-grid wind power AWE system simulation model to construct an IES optimization operation model considering the stepped carbon transaction mechanism and electric hydrogen production; and solving the IES optimization operation model by taking the minimum total operation cost as a target to obtain an operation optimization strategy of the off-grid wind power AWE system. According to the technical scheme, the low carbon and economical efficiency of the IES are improved, and the operation optimization strategy of the off-grid wind power AWE system is optimized.
Owner:NORTH CHINA ELECTRIC POWER UNIV +1
A high performance liquid chromatography tandem mass spectrometry all-in-one machine
The application relates to the technical field of liquid chromatography tandem mass spectrometry all-in-one machines, in particular to a high-performance liquid chromatography tandem mass spectrometry all-in-one machine which comprises a bottle box, the top of the bottle box is used for placing a solvent bottle, a fixing clamping plate for limiting the solvent bottle is arranged on the bottle box, a side edge buckle slot is formed in the side edge of the bottle box, a refrigeration box is arranged in the side edge cooling box, an intelligent control screen is mounted on the surface of the refrigeration box, a pull-out box is connected to the side edge cooling box through a pull-out slot, and a box handle is arranged on the pull-out box. On the sample management, the refrigeration box in the side edge cooling box cooperates with the intelligent control screen to realize intelligent temperature control, the influence of manual operation on the refrigeration environment is avoided, the arc-shaped clamping groove, the rubber pad and the compression spring structure in the pull-out box can stably clamp a test tube, the sample pollution risk is reduced, the detection precision is improved, and meanwhile, the detachable connection design of the fixing clamping plate enhances the use flexibility of the equipment.
Owner:GUANGZHOU TAIPUSI TECHNOLOGY CO LTD