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86results about How to "Achieve long-term storage" patented technology

Multi-energy complement combined heat and power generation system and work method based on fuel cell

The invention relates to a multi-energy complement combined heat and power generation system and a work method based on fuel cells; the system comprises a fuel cell combined heat and power generation device with an inlet connected with natural gas and air, a heat energy outlet is connected with a heat energy transmission and distribution control management system, and an electric energy outlet is connected with an electric energy transmission and distribution control management system; the heat energy transmission and distribution control management system heat energy inlet is connected with a solar energy photo-thermal device, a heat energy outlet is connected with a heat energy load, and a hot oil heat storage device is connected with the heat energy transmission and distribution control management system; the electric energy transmission and distribution control management system electric energy inlet is connected with a solar energy photovoltaic generating device and a wind power generation device, an electric energy outlet is connected with a proton exchange membrane electrolytic water hydrogen production device and a heat energy load, and a cell energy storage device is connected with the electric energy transmission and distribution control management system; the proton exchange membrane electrolytic water hydrogen production device hydrogen outlet is connected with a hydrogen storage tank inlet, and the hydrogen storage tank outlet is connected with a fuel cell combined heat and power generation device hydrogen inlet; the invention also discloses the work method of the system; the method and system can operate under a fixing heat based on power mode or a fixing power based on heat mode, thus satisfying user demands on electric energy and heat energy.
Owner:HUANENG CLEAN ENERGY RES INST

Energy conversion system used in intensified geothermal system with CO2 as working medium

The invention relates to an energy conversion system used in an intensified geothermal system with CO2 as a working medium. The energy conversion system is characterized by comprising a ultrahigh-voltage CO2 thermal power generation system and an organic rankine thermal power generation system, wherein endothermic CO2 in a geothermal reservoir is taken as the working medium for the ultrahigh-voltage CO2 thermal power generation system, and heat energy is converted into electric energy through turbine expansion working; and a rankine cycle working medium in the organic rankine thermal power generation system exchanges heat with CO2 subjected to working doing, and the heat energy is converted into the electric energy through a rankine cycle. According to the invention, because the ultrahigh-voltage CO2 thermal power generation system and the organic rankine thermal power generation system are combined in use, the conversion efficiency in converting the heat energy into the electric energy is effectively increased; meanwhile, the heat utilization rate of the geothermal system is increased, long-term sequestration of partial CO2 can be realized, and the emission of the CO2 to the atmosphere is reduced. The energy conversion system disclosed by the invention can be widely applied to the technical field of geothermal power generation.
Owner:TSINGHUA UNIV

Intelligent movable gas pumping station for mine

ActiveCN101749044ARealize on-site display and real-time monitoring functionAchieve long-term storageGas removalCouplingThree phase asynchronous motor
An intelligent movable gas pumping station for mine belongs to the technical field of mine device, in particular relates to a movable gas pumping station for mine. The gas pumping station is characterized in that the station is provided with an intelligent monitoring substation and a softening water device (14); the intelligent monitoring substation comprises a processor (6), a pressure difference sensor (1) for mine, a pressure senor (3) for mine, a temperature sensor (4) for mine and a pipeline methane consistency sensor (5); an exploding insulating three-phase asynchronous motor (8) is connected with a water ring vacuum pump (10) through a shaft joint; the inlet of the water ring vacuum pump (10) is connected with a gas pumping pipeline (15), and the outlet of the water ring vacuum pump (10) is connected with a constant water level gas-water separating device (16). Making use of the intelligent movable gas pumping station for mine, the parameters can be displayed on site and monitored in real time, such as flow rate, consistency, temperature and negative pressure of gas; the station can be linked with the computer of the ground central station to remotely monitor and control and store each parameter in long time.
Owner:ZIBO WATER RING VACUUM PUMP FACTORY

DC600V main line on-line insulation monitoring device

The invention relates to a DC600V main line on-line insulation monitoring device, which comprises a voltage sensor for monitoring the voltage of at least one power supply main line, and a voltage sensor for monitoring the voltage to ground of a positive line of at least one power supply main line, wherein the voltage signals monitored by the voltage sensors are transmitted to a PLC control system, the PLC control system is used for processing the monitored information, and the result is displayed on a display. The on-line test can be carried out to the service voltage and insulation of the DC600V line, and when the DC600V main line on-line insulation monitoring device works in a train garage, the insulation resistance of the main line can be detected through a ground power supply to ensure the out-garage state of the train, so as to provide support for ensuring driving safety; whether the train is insulated can be judged after a locomotive is used, and meanwhile, the power supply quality of the locomotive can be detected; all the data can be checked in real time and replayed, also can be dumped via a CF card, and read and printed through a groundbased computer; and the data can be stored for a long term (first in and first out, 30 days) without frequent downloading.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

Tailing thickening system and using method thereof

The invention relates to the technical field of mine tailing filling, in particular to a tailing thickening system and a using method thereof. The tailing thickening system provided by the invention comprises a containing device, a feeding device, a stirring rake device, a driving device, a fluidized slurrying device and a discharging device; during thickening and dewatering of whole tailings, thestirring rake device of the tailing thickening system starts to run, and compression and drainage are achieved through shearing of tailing floccules; meanwhile, the mud height can be further improvedthrough stopping of operation of the stirring rake device, and the concentration efficiency and the underflow density are improved obviously; thus, when filling is not required or shutdown is required due to other reasons, the stirring rake device can be stopped, and long-time storage of tailing slurry can be achieved, so that the mining and filling balance adjustment is achieved.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

Hydrogen-rich water generating device

The invention relates to the technical field of domestic water treatment and particularly relates to a hydrogen-rich water generating device. The device comprises a purifying system, a mineralizing activating system, a magnetizing system, a hydrogen water electrolysis system and a hydrogen dissolving system which are connected with each other in turn; the hydrogen dissolving system comprises an ultrasonic gas explosion hole fuser; a plurality of 35K60W transduction vibrators are arranged at the bottom of the tank body of the ultrasonic gas explosion hole fuser; an ultrasonic generator is arranged at the top; the ultrasonic frequency is 38KHz-45KHz; the hydrogen dissolving system further comprises an electric field treatment water storage device; the electric field treatment water storage device comprises a metal tank, a pole plate and a high voltage power supply. The device is capable of generating the hydrogen-rich water in the manner of purifying, mineralizing, activating, magnetizing and electrolyzing water; an acoustic hole technique is adopted for achieving the saturated dissolved hydrogen concentration in water; the speed of the hydrogen molecule for escaping to the outside air is reduced under the effect of high voltage electric field to the hydrogen-rich water; the long-term storage of the hydrogen-rich water under a natural sealing condition is realized.
Owner:临汾市康宜派饮品有限公司

Method for prolonging refrigerated storage period of mackerels

The invention discloses a method for prolonging the refrigerated storage period of mackerels. The method is characterized by comprising the following steps: (I) removing internal organs of a fresh mackerel before the mackerel is rigid, and cleaning the fresh mackerel with clear water; (II) soaking the mackerel obtained from the step I in soaking liquid consisting of sodium chloride, citric acid, butyl hydroxy anisd and water, and then removing the water on the mackerel; (III) smearing the surface of the mackerel obtained from the step II with surface treatment liquid consisting of vegetable oil, ethanol and mixed plant powder; and (IV) wrapping the mackerel obtained from the step III with a fresh-retaining film, refrigerating and storing in a refrigeration house. The treated mackerel is soaked with the soaking liquid, the surface of the treated mackerel is smeared with the treating liquid, therefore, the mackerel can be stored for a long time, radiation treatment is not required, and the mackerel tastes good. The method is reasonable in process and feasible in operation.
Owner:SHANDONG HOMEY AQUATIC DEV

Processing method of freeze-dried fresh fructus lycii

The invention discloses a processing method of freeze-dried fresh fructus lycii. The freeze-dried fresh fructus lycii is obtained by enabling fresh fructus lycii to be at a frozen state in a freeze-drying process all the time through a freeze-drying technology so as to realize sublimation and dehydration purposes under the conditions that any additive is not added, the fructus lycii does not need to be dewaxed and an initial state of the fresh fructus lycii is kept, and packaging without the need of nitrogen gas. The method disclosed by the invention comprises the following steps: treating raw materials, washing and draining, quickly freezing, freezing in vacuum and drying, and packaging a finished product. The processing method disclosed by the invention has the beneficial effects that (1) an initial natural state of the fresh fructus lycii is kept, and nutrient components and active substances are kept completely; color and luster, apparent shapes and re-watered appearance and taste keeping basically consistent with those of fresh fruits; (2) long-time storage of the fresh fructus lycii is realized and the shelf life is prolonged; the sublimation and freeze-drying time of moisture is relatively short, the production cost is reduced and the energy consumption is greatly reduced; (3) any additive is not added so that the freeze-dried fresh fructus lycii is safe and reliable to eat and the product has long-time stability in marketing sale.
Owner:青铜峡市青绿食品有限公司

Water tank waste heat recovery heat pump water heater system with adsorption type heat storage device

The invention relates to a water tank waste heat recovery heat pump water heater system with an adsorption type heat storage device. The water tank waste heat recovery heat pump water heater system comprises a water-refrigerant heat exchanger, a water tank, a four-way reversing valve, a compressor, an air-refrigerant heat exchanger, a fan, the heat storage device and a throttling device, wherein the water-refrigerant heat exchanger and the heat storage device can be connected in series or in parallel. Compared with the prior art, the water tank waste heat recovery heat pump water heater systemwith the adsorption type heat storage device can well solve the problem of waste heat of a water tank of a heat pump water heater. The structure of a heat pump system is improved, reverse refrigeration is carried out by converting the flow direction of a refrigerant, waste heat in the water tank of the heat pump water heater is stored in the adsorption type heat storage device, the system structure is simple, and long-time temperature storage of heat can be achieved.
Owner:TONGJI UNIV

Method for preparing high-quality pork feed by using feed mulberry

The invention discloses a method for preparing high-quality pork feed by using feed mulberry. According to the invention, the method comprises the steps of harvesting feed mulberry in a mowing period,conducting smashing directly by a pulverizer to obtain particles of 0.5 cm, adjusting the moisture content of the particles, then uniformly mixing the particles with a special fermentation preparation, conducting compacting and sealing, then conducting anaerobic fresh storage, and after 2 weeks and anaerobic fermentation is stable, mixing the fermented material with other feeds for direct feeding. The stored feed mulberry of the invention overcomes the problem of poor palatability of feed mulberry after silage, improves the palatability of the pig, and increases the feed intake. The technology is simple in preparation, and is less affected by external environmental conditions, and all farms can separately produce the feed mulberry of the invention. The fermented feed mulberry does not require secondary processing, and does not require additional storage steps, thereby solving the problem of feed mulberry storage, achieving annual supply and reducing nutrient loss during storage.
Owner:INST OF ANIMAL SCI & VETERINARY MEDICINE SHANDONG ACADEMY OF AGRI SCI +1

Fruit and vegetable fresh-keeping and refrigeration processing process

The invention discloses a fruit and vegetable fresh-keeping and refrigeration processing process. The process comprises the following steps: (1) harvesting and selecting fruits and vegetables; (2) washing and keeping clean; (3) pre-cooling; (4) carrying out ultraviolet radiation; (5) decompressing refrigerating; and (6) gradually increasing temperature. The process is reasonable and simple; the fresh degree of the fruits and vegetables is guaranteed and the storage period of the fruits and vegetables is prolonged; the process mainly has the characteristics of high cooling speed, rapid oxygen reduction, efficient sterilization and residue elimination; the fruits and vegetables can be stored for a long period, and green and healthy safety guarantees are realized; and the process is suitable for being popularized and applied in the fresh-keeping and refrigeration industry.
Owner:GUANGXI UNIV

Wasabi barbecue sauce and preparation method thereof

The invention provides wasabi barbecue sauce. The wasabi barbecue sauce is prepared from, by mass, 51.33-53.23% of wasabi, 6.96-8.02% of sugar, 5.24-6.42% of rapeseed oil, 4.69-5.18% of salt, 2.81-3.01% of vinegar, 0.68-0.72% of thickener, 0.13-0.15% of spice, 0.12-0.15% of sour agent, 0.01-0.02% of coloring agent and 25.02-26.11% of water. According to the wasabi barbecue sauce, wasabi is used and compounded with all kinds of seasoning, so that the wasabi barbecue sauce has a special barbecue flavor and has the advantages of removing grease, strengthening the spleen and stomach, promoting digestion and being more delicious in taste. The invention further provides a preparation method of the wasabi barbecue sauce. The preparation method of the wasabi barbecue sauce is easy to operate, makes storage easy and is convenient to use.
Owner:YUNNAN JUNQINGKANG BIOENG CO LTD

Indoor storage and fresh-keeping method for ginger

The invention discloses an indoor storage and fresh-keeping method for ginger. The method comprises the following steps: building a storage room provided with a pit, partition wall building blocks, a thermal insulating layer and a plurality of air pipes in a vacant house, then selecting robust ginger blocks which are uniform in size, good in quality and free of diseases, sequentially stacking selected ginger blocks upwards in the storage room in a layering manner, and finally, covering the surfaces of the ginger blocks on the uppermost layer in the storage room with a soil covering layer and an insulating layer, so as to enable the temperature in the ginger block pile to be stabilized to be 13+ / - 1 DEG C. According to the invention, a reasonable and advanced storage technology is adopted, so that ginger is close to the ground and moisturized, the storage cost is effectively reduced, the preservation effect of ginger is good, the storage capacity is high, the ginger rotting rate is 3% or below, moisture and freshness of ginger are effectively maintained, original color, luster and quality of ginger are guaranteed, economic benefits of ginger farmers and commodity values of the ginger are increased and wide-range popularization and application are facilitated.
Owner:LUOPING GINGER TECH PROMOTION STATION

Portable nuclear instrument system signal detection and fault positioning device

The invention provides a portable nuclear instrument system signal detection and fault positioning device. The device comprises a shell, a power supply board, a main control board, a weak current signal acquisition board, a source range pulse signal acquisition board, a high voltage output board and a liquid crystal display board, wherein an accommodating cavity is formed in the shell; the power supply board, the main control board, the weak current signal acquisition board, the source range pulse signal acquisition board and the high voltage output board are all placed in the accommodating cavity; the liquid crystal display panel is fixed on the surface of the shell, and the power panel, the weak current signal acquisition board, the source range pulse signal acquisition board, the high voltage output board and the liquid crystal display panel are all electrically connected with the main control board; the weak current signal acquisition board, the source range pulse signal acquisition board and the high voltage output board are provided with corresponding HN terminals; and the HN terminal is arranged on the surface of the shell. According to the invention, when an abnormal signaloccurs, a fault section can be troubleshot through a segmentation test function of the device, so that troubleshooting and positioning are realized.
Owner:中广核工程有限公司 +2

Method and system in support of multichannel broadcast of camera video data and Homed system

ActiveCN106998441AStable broadcast functionMeet the needs of video playbackTelevision conference systemsClosed circuit television systemsComputer terminalComputer science
The invention discloses a method and system in support of multichannel broadcast of camera video data and a Homed system. The Homed system with a strong channel live broadcast function is introduced. Monitoring channels are established by taking video data of cameras as input sources according to monitoring channel establishment requests and camera address information; corresponding monitoring channel identifiers and broadcast addresses are set for the monitoring channels; the monitoring channel identifiers are sent to a video conference background; the video conference background can forward the monitoring channel identifiers to terminals; when video broadcast requests which are sent by the terminals through first preset interfaces and carry the monitoring channel identifiers are received, the broadcast addresses of the monitoring channels are sent to the terminals, so the terminals obtain video resources. The Homed system has the capability bearing ten-million user level access, so the number of the terminals participating in a video conference is no longer limited by the number of broadcast channels of the cameras.
Owner:SHENZHEN IPANEL TECH LTD

Digitalized carbon dioxide viewer for earthquake precursor monitoring

The invention relates to a digitalized carbon dioxide viewer for earthquake precursor monitoring. The digitalized carbon dioxide viewer comprises a server end, a power supply module and a carbon dioxide acquiring module, wherein the server end comprises a PC (Personal Computer) mainboard and a liquid crystal display screen connected with the PC mainboard. The digitalized carbon dioxide viewer adopts a modular design, facilitates failure recognition, and is easy to maintain. All modules can be individually updated without largely changing the whole system structure. The digitalized carbon dioxide viewer has a simple installing and arranging procedure which can be completed within 2-3 hours and is easy to master.
Owner:河北省地震局唐山中心台

Multifunctional bottle for achieving long-term preservation of seeds and using method

The invention provides a multifunctional bottle for achieving long-term preservation of seeds and a using method. The multifunctional bottle is used for achieving convenient fetching and storing of the seeds. The bottle comprises a seed fetching bottle body, a seed fetching bottle cap, a seed storing bottle body, a seed storing bottle cap and a fixed drum; the seed fetching bottle body is detachably connected with a seed storing cavity, the seed fetching bottle cap is detachably installed at the opened end of the seed fetching bottle body, a drying agent is arranged in the seed fetching bottle cap, the seed storing bottle cap is detachably installed at the opened end of the seed storing bottle body, and a vacuum valve is arranged on the seed storing bottle cap; the fixed drum is arranged on the outer wall of the seed fetching bottle body, a material discharging hole is formed in the top of the fixed drum, a front plate is arranged on one side of the fixed drum, a rear plate is arranged on the other side of the fixed drum, an outer shaft is rotatably installed between the front plate and the rear plate, a first movable plate is fixed on the outer wall of the outer shaft, an inner shaft is rotatably installed in an inner cavity of the outer shaft, and a second movable plate is arranged on the outer wall of the inner shaft. By means of the preservation bottle, long-term and short-term storage of the seeds can be achieved, quantitative weighing of the seeds can be achieved, and the quantity of weighed seeds can be adjusted according to needs.
Owner:SHANDONG CROP GERMPLASM CENT

Composition capable of preventing and treating respiratory system diseases like novel coronavirus infection and other diseases

The invention belongs to the technical field of formulas of medicament for preventing and treating physical diseases and particularly relates to composition capable of preventing and treating respiratory system diseases like novel coronavirus infection and other diseases. Alliin, alliinase and type II transmembrane serine protease inhibitor are taken as basic effective ingredients, the compositionis administered in a way of inhalation by the lung, can kill physical diseases caused by bacteria such as methicillin-resistant staphylococcus aureus, multidrug resistance type escherichia coli, multidrug resistance type pseudomonas aeruginosa, multidrug resistance type mycobacterium tuberculosis and the like, viruses such as SARS-CoV-2 and the like, fungi such as multidrug resistance type candida albicans and the like, parasites and the like in a respiratory system and also can prevent fat accumulation in blood vessels of a human body, reduce the blood pressure, the cholesterol level in blood and destroy cancer cells of multiple epithelial tumors of breast cancer, ovarian cancer, colon cancer, renal carcinoma, liver cancer, lung cancer, mesothelioma and prostatic cancer, and the composition has no any toxic or harmful functions and risks and has broad application prospects.
Owner:WUXI HONGRUI BIOMEDICAL TECH CO LTD

High-refraction-rate resin and application thereof

The invention relates to high-refraction-rate resin which has the following general formula (please see the general formula in the specification). The resin is high in refraction rate, the refraction rate reaches 1.58 or above, the resin can be used for a hardened coating of an optical thin-film material, and the refraction rate of a polyester film can be increased.
Owner:CHINA LUCKY FILM CORP

Paper document quality guarantee processing device

The invention belongs to the technical field of document preservation, and relates to a paper document quality guarantee processing device. A main structure of the paper document quality guarantee processing device comprises an atomizing chamber, an atomizer, a liquid storer, a power supply, an atomizing pump, document quality guarantee liquid, a document support clamp, a document, an air inlet, an air outlet, a liquid storer cover, an electrode, an atomizing nozzle and an atomizing chamber door; the processing device is used; the document quality guarantee liquid is atomized and attached on the document through spraying the atomized document quality guarantee liquid to the document in the atomizing chamber, and solvent thereof can be quickly cured to form a layer of document quality guarantee liquid film after evaporation, so that the document quality change and damage and the writing fading are effectively prevented, the insect corrosion resisting effect is achieved, the long-time document quality guarantee preservation is realized, and in particular, the writing on the document cannot fade or mutually bonded; and the device is simple in principle, reasonable in structure, excellent in use effect and long in quality guarantee period.
Owner:QINGDAO UNIV

Growth curve processing method, device and system facing blood bacterial culture

The present invention belongs to the technical field of computers and provides a growth curve processing method, device and system facing blood bacterial culture. The method comprises the steps of converting an obtained growth curve into a black and white image, identifying the black and white image according to the gray value of the black and white image, obtaining an image size, an instrument version, a bottle bar code or sample bar code, carrying out element extraction on the black and white image, obtaining image coordinates, an image change curve or blood bottle information, integrating an image background, a curve background, a button pattern, a curve title with adjusted sizes and the image coordinates, the image change curve and the blood bottle information, obtaining a color image, setting the bottle bar code or sample bar code as the name of the color image, and generating image files of different resolutions. According to the growth curve processing method, device and system facing blood bacterial culture, the growth curve in the blood bacterial culture can be quickly stored, the processing flexibility of the growth curve is improved, and the visual display of the growth curve is facilitated.
Owner:THE AFFILIATED HOSPITAL OF HANGZHOU NORMAL UNIV

Gas dilution and mixing system

In order to solve the problems that existing gas mixing equipment is unable to prepare special fumigation gas meeting the requirements of simulating atmospheric pollution of the environment for toxicity, corrosivity, low concentration, simplicity and rapidness, and low cost in fumigation test, the invention provides a gas dilution and mixing system. A gas mixing bottle is arranged in a cone box, each air inlet hole is provided with a seal plug, a sleeve is arranged in the bottle neck, a threaded pipe is arranged in the sleeve and is in threaded connection with the sleeve, the lower end of the threaded pipe is located in the gas mixing bottle, the upper end is located in a round box and is connected to the inner ring of a connecting piece, the outer ring of the connecting piece is in connection with a first diluent gas delivery pipe, the first diluent gas delivery pipe is connected to a first diluent gas steel cylinder, a flow channel is arranged below a guide plate, an air inlet pipe is connected to a second diluent gas steel cylinder, a gas temporary storage box is arranged at the top of a round box and is connected to a three-way valve through a connecting pipe, and the three-way valve is in connection with a gas absorption pipe, a user adapter pipe and a storage. The gas dilution and mixing system provided by the invention is used for diluting or mixing gas.
Owner:NORTHEAST FORESTRY UNIVERSITY

High voltage switchgear partial discharging state data storage system

The invention discloses a high voltage switchgear partial discharging state data storage system. The high voltage switchgear partial discharging state data storage system comprises a ZigBee sensing node and a storage module. The ZigBee sensing node comprises an ultrasonic sensor module, an ultrasonic signal modulation module, an ultrahigh frequency sensor module, an ultrahigh frequency signal modulation signal, an ultraviolet ray sensing and conditioning module and a processor. The ultrahigh frequency signal modulation unit comprises an amplification circuit, a filtering circuit and an A / D converting circuit. The ultraviolet ray sensing and conditioning module comprises an UV photoelectric conversion unit, a high voltage driving unit, an I / U converting unit, a pulse amplification unit anda pulse discrimination unit. The storage module comprises a DSP processing module, a power supply module, an interface module, a data management control module, an SD memory card, a CAN communicationmodule, an upper computer detection module, a display screen, a resetting module and a button. The high voltage switchgear partial discharging state data storage system can realize comprehensive and real-time data storage on the state of the switchgear and is strong in data processing, big in memory space, high in reliability and good in stability.
Owner:WUXI 720 DEGREE TECH CO LTD

Long-term storage method of grain dreg type feed

The invention discloses a long-term storage method of a grain dreg type feed. The storage method is realized by adding feed-grade ammonium chloride (NH4Cl) into the grain dreg type feed according to a certain proportion. To ensure the storage effect, the ammonium chloride accounts for 0.2-0.5% of the fresh weight of the grain dreg, generally 0.3-0.4%. The method can be applied to grain dreg type feeds of which the water contents are within 20-95%, the storage period can be more than 1 year, and remarkable anti-fly effects are achieved; and the grain dregs stored by using the method are suitable for being used as feeds for ruminants such as cows and sheep. The long-term storage method is simple to operate and low in cost, and has a good application prospect.
Owner:CHINA AGRI UNIV

Solid oral preparation and preparation method thereof

The present invention provides a stable solid oral preparation. By controlling the water content within a specific range, the solid oral preparation has the characteristics of high storage stability, which is more in line with industrialization than the preparations disclosed in the prior art. production and clinical use.
Owner:麦丽芳

Preparation method of freeze-dried powder soluble microneedle

The invention relates to the technical field of microneedles, in particular to a preparation method of a freeze-dried powder soluble microneedle. The preparation method of the microneedle comprises a freeze-dried powder filling step, before the freeze-dried powder filling step, an oil-soluble protective layer is prepared on the surface of the soluble hollow needle body, then the soluble hollow needle body is filled with a freeze-dried powder raw material aqueous solution in the freeze-dried powder filling step, and the microneedle is prepared through a freeze-drying process. The freeze-dried powder raw material water solution becomes freeze-dried powder in the inner cavity of the soluble hollow needle body, and the freeze-dried powder filling step is completed. The freeze-dried powder needle has the beneficial effects that the freeze-dried powder raw material is filled in the form of a solution, the filling operability is high, and then the freeze-dried powder raw material is freeze-dried in the soluble hollow needle body, so that the freeze-dried powder raw material is not wasted. When a freeze-dried powder raw material aqueous solution is filled, the oil-soluble protective layer can protect the soluble hollow needle body from being dissolved, and meanwhile, the oil-soluble protective layer can be dissolved under the action of oily components of skin tissues without residues.
Owner:厦门薇针医药科技有限公司

NFC-based continuous blood glucose testing instrument and testing method

InactiveCN110368000AKeep abreast of health conditionsRealize fast reading and establish connectionCo-operative working arrangementsCatheterSignal processing circuitsGlucose control
The invention belongs to the field of medical monitoring equipment and discloses a NFC-based continuous blood glucose testing instrument and a testing method. The NFC-based continuous blood glucose testing instrument comprises a blood glucose acquisition front end, and the blood glucose acquisition front end comprises an enzyme chemical biosensor, a constant-potential circuit, a signal processingcircuit, a microprocessor and NFC tags. An output end of the enzyme chemical biosensor is electrically connected with the microprocessor through the signal processing circuit, the constant-potential circuit is electrically connected with an input end of the enzyme chemical biosensor, and the NFC tags are integrated in the microprocessor. The NFC-based continuous blood glucose testing instrument and the testing method have advantages that on the one hand, advantages on the basis of the blood glucose testing method are realized, fast connection is realized, low power consumption is kept constantly in operation, and accordingly cost saving is realized; on the other hand, long-term measurement storage is realized, patients or monitoring personnel can check monitoring data at any time to timelyknow health conditions of the patients and realize effective blood glucose control.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Wireless command guidance rocket projectile for 40mm rocket tube

PendingCN111981917ASolve the problem of anti-high chamber pressureTroubleshoot Wiring ProblemsSelf-propelled projectilesGuidance controlControl system
The invention provides a wireless command guidance rocket projectile for a 40mm rocket tube. An execution mechanism, a wireless command receiving device, an on-projectile control module and a beacon module are additionally arranged, and peripheral equipment is a ground launching control device; the execution mechanism is arranged in a nose fairing of a rocket projectile, the beacon module is arranged at the tail of the rocket projectile, an uncontrolled counterweight beacon or a controlled infrared beacon is adopted, and a universal mechanical interface is arranged on the beacon module and iscapable of being switched between the two beacons; in the uncontrolled mode, the uncontrolled counterweight beacon works, and a guidance control system on the rocket projectile does not work and fliesin an uncontrolled manner; and in the controlled mode, the controlled infrared beacon works and infrared signals are emitted, the wireless command receiving device is in wireless communication with the on-projectile control module, the on-projectile control module forms a control command to be transmitted to the execution mechanism, and the rocket projectile is controlled to fly until a target isdestroyed. According to the wireless command guidance rocket projectile for the 40mm rocket tube, not only the hit precision of near-range engagement is guaranteed, but also the firepower hitting range of the 40mm rocket tube on static and moving targets is greatly improved.
Owner:北京恒星箭翔科技有限公司

Anti-attenuation low-melting-point polyester chip prepared by one-step spinning method and preparation method of anti-attenuation low-melting-point polyester chip

PendingCN112778509AImprove the uniformity of multi-component copolymerizationImprove spinning efficiencyMonocomponent copolyesters artificial filamentPolymer scienceSpinning
The invention discloses ananti-attenuation low-melting-point polyester chip prepared by a one-step spinning method and a preparation method of the anti-attenuation low-melting-point polyester chip. According to the method, terephthalic acid, isophthalic acid, ethylene glycol, diethylene glycol, polyethylene glycol, adipic acid and the like are used as raw materials, and the polyester chip is prepared through step-by-step esterification and step-by-step polymerization. Through formula improvement and innovation and technological process optimization, accurate regulation and control of a condensed state structure of a product are realized, rapid establishment of a local ordered state of a molecular chain in a one-step filament spinning process is met, a small quantity of oriented folded chain crystals are formed, strength attenuation of spun filaments within 72 hours is less than 10%, long-time storage can be realized, the hot-melt bonding temperature is 150-170 DEG C, the comprehensive use performance is excellent, and the use effect in the fields of 3D flyknit, hot melt bonding and the like is good.
Owner:ANHUI WANWEI UPDATED HIGH TECH MATERIAL CO LTD
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