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Preparation method of ultralight and hydrophobic nano fibrillated cellulose aerogel with high oil absorption
InactiveCN103756006ASolve the defect of strong hydrophilicityLow densityCoatingsEnvironmental resistanceCellulose
The invention discloses a preparation method of an ultralight and hydrophobic nano fibrillated cellulose aerogel with high oil absorption, and relates to a preparation method of cellulose aerogel. The method disclosed by the invention aims to solve the problem that existing cellulose aerogel which is lower in oil absorption multiplying power and strong in hydrophilicity is not suitable for oil-water separating materials. The method comprises the following steps: I, preparing cellulose aqueous liquor; II, preparing a nano fibrillated cellulose aqueous dispersion liquid; III, preparing a strongly gelatinous nano fibrillated cellulose aqueous dispersion liquid; IV, freezing and drying; and V, carrying out hydrophobic modification to obtain the ultralight and hydrophobic nano fibrillated cellulose aerogel with high oil absorption. The preparation method of the ultralight and hydrophobic nano fibrillated cellulose aerogel with high oil absorption is simple in preparation process, wide in source of raw materials, low in cost and environment-friendly and green. The invention relates to the preparation method of the ultralight and hydrophobic nano fibrillated cellulose aerogel with high oil absorption.
Owner:NORTHEAST FORESTRY UNIVERSITY
Thermosetting epoxy asphalt material, preparation method and its dedicated compatibilizer
InactiveCN1952012AEasy to operateLow costWorking-up pitch/asphalt/bitumen by meltingBuilding insulationsTarCarbon chain
The invention discloses a heat-solidity epoxy tar material, preparing method and specific dissolving-reinforcing agent, which comprises the following steps: allocating the raw material with 100% tar, 20-40% epoxy resin, 20-40% hardener and 20-60% heat-solidity epoxy tar; blending evenly; heating to 80-90 deg.c; stirring evenly; solidifying under 100-120 deg.c for 0.5-7h; obtaining the product. The invention provides a specific dissolving-reinforcing agent of heat-solidity epoxy tar material, which contains weak-polarity high-grade fat carbon chain and strong-polarity Mannish alkaline or compound of epoxy resin and polyol.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
Self-balancing pressure-resistant casing device
ActiveCN105197183AMaintain balanceMaintain stabilityWaterborne vesselsUnderwater vesselsControl systemAgricultural engineering
Owner:JIANGSU UNIV OF SCI & TECH
Management system of power battery for mixed-power automobile
InactiveCN1896892AHigh precisionHigh speedSpeed controllerBatteries circuit arrangementsElectrical batteryData memory
This invention puts forward a kind of power battery's management system of mixed power vehicle. It is comprised by two subsystems: picking circuit board and master circuit board. The picking circuit board's single unit cell voltage picking module picking circuit board and total cell voltage / electric current picking module are connected with CPU's I / O after multicircuit switch and the A / D conversion chips. The picking circuit board and the master circuit board carry on communication through the CAN total line communication module. The address port and the data port of the master circuit board's not volatility data memory module have the conjunction with CPU's I / O. The reading port and writing port connect with CPU's reading port and writing port. And CPU's I / O separately connects with CA of strong electricity protection module, temperature control module and malfunction alarm module. This invention can improve the system's voltage picking accuracy and speed. It can improve the stability of data sending in complicated actual work condition. Furthermore, it improves the accuracy of single unit cell voltage collect and the anti- interference in the process of voltage collect.
Owner:CHONGQING UNIV +1
Porcelain polished tile and production method thereof
The invention discloses a porcelain polished tile and a production method of the porcelain polished tile. The production method comprises the steps of: (1) preparing a porcelain polished tile blank body powder material by a conventional method; (2) preparing a porcelain polished tile slurry; (3) preparing a porcelain polished tile blank body; (4) drying; (5) applying the slurry; (6) drying and sintering; (7) edging and polishing; and (8) sorting, packaging and warehousing. The porcelain polished tile and the production method have the beneficial effect of solving the technical problems of higher requirements of the traditional porcelain polished tile on a material and more waste, and provides a more environment-friendly and economic production method of the porcelain polished tile.
Owner:HANGZHOU NABEL CERAMIC +2
Preparation and application of amphiphilic albumin derivative and pharmaceutical composition thereof
InactiveCN101543630AEvade captureHigh drug loadingPharmaceutical delivery mechanismMacromolecular non-active ingredientsCholic acidWater insoluble
The invention relates to a biodegradable amphiphilic albumin derivative and a pharmaceutical composition thereof. In the biodegradable amphiphilic albumin derivative, hydrophilic long-chain polyethyleneglycol and alkyl (acyl) group or (deoxidized) cholic acid are led to an albumin skeleton so that the amphiphilic albumin derivative is amphipathic and is self-assembled in water to form nano-micelle. The biodegradable amphiphilic albumin derivative is characterized in that medicament can be encapsulated through the double actions of a hydrophobic group and an albumin molecule chain with the medicament, and the capacity of the albumin encapsulating the medicament is markedly improved; in addition, a hydrophilic long-chain can reduce the immunogenicity of the albumin and improve the nano-micelle surface hydrophilicity so that the stability of the nano-micelle in aqueous medium can be improved and the nano-micelle has long-circulation characteristics in a body. The pharmaceutical composition of the biodegradable amphiphilic albumin derivative can be used as the carrier of organic medicament, water-insoluble or insoluble medicament and amphiphilic medicament, can be used for intravascular administration, intramuscular injection administration, oral administration, cavitary administration or external administration. The invention can be prepared with simple method and mature process and is suitable of large-scale continuous production.
Owner:CHINA PHARM UNIV
SAAS application deployment method and system for PAAS platform under cloud computing environment
ActiveCN103716403ARapid deploymentDeployment can be customizedProgram loading/initiatingTransmissionThird partyEngineering
The invention discloses an SAAS application deployment method for a PAAS platform under a cloud computing environment. The method comprises the steps that a developed application installation package is uploaded to the PAAS platform, and a background deployment module carries out application installation deployment operation on the application installation package. According to the technical scheme, fast and customizable deployment of SAAS applications on the PAAS platform can be achieved. In addition, a third party developer does not need to pay attention to specific platform resources, and only needs to pay attention to basic development and design of own applications, development can also be carried out according to an API of the PAAS platform, developed applications thereof can all be deployed normally by adopting the method, and therefore the technology option range is broadened.
Owner:DAWNING CLOUD COMPUTING TECH CO LTD
Applications of andrographolide derivatives and 3,19 esterified compounds thereof in preparation of anti-hepatic fibrosis medicines
ActiveCN106946821ADefinitive anti-hepatic fibrosis activityInhibit migrationOrganic active ingredientsOrganic chemistryCell-Extracellular MatrixHepatic stellate cell activation
The invention belongs to the technical field of medicines, discloses applications of andrographolide derivatives in preparation of medicines preventing and treating hepatic fibrosis, and relates to 15-benzylidene-14-deoxy-11,12-dehydroandrographolide derivatives and 3,19 esterified compounds thereof. Experiments prove that the compounds significantly inhibit human hepatic stellate cell LX-2 metastasis and activation, significantly reduce the fibrosis level of hepatic tissues of rats affected with hepatic fibrosis, reduce contents of extracellular matrix protein (ECM) related components, significantly reduce the level of immune inflammation correlation factors of rats affected with hepatic fibrosis, effectively inhibit immuno-inflammatory responses, inhibit hepatic stellate cell activation in hepatic tissues, and promote collagen degradation. The compounds are used as active components for preparing the anti-hepatic fibrosis medicines, and are efficient and low in toxicity, thus providing a novel medicine route for hepatic fibrosis treatment and prevention, and expanding the optional range of clinical medicine application. The compounds and the applications have good development prospects.
Owner:ZHENGZHOU UNIV
Organosilicon material, preparation method thereof, and application method thereof in 3D printing
The invention discloses an organosilicon material. The organosilicon material comprises: a component A comprising, by weight, 80-200 parts of organopolysiloxane, 20-60 parts of a reinforcing filler, 0-20 parts of silicon resin, 50-80 parts of a heat conduction filler, 2-20 parts of a structurized control agent, and 0.05-0.8 parts of a reaction catalyst; and a component B comprising, by weight, 80-200 parts of organopolysiloxane, 0.5-10 parts of organic hydrogen-containing polysiloxane, 20-60 parts of the reinforcing filler, 0-20 parts of silicon resin, 50-80 parts of the heat conduction filler, 2-20 parts of the structurized control agent, and 0.05-0.4 parts of a reaction inhibitor, wherein a weight ratio of the component A to the component B is 1:1. The invention also discloses a preparation method of the organosilicon material, and a method for applying the organosilicon material in 3D printing. The organosilicon material has the advantages of superior performances, safety and non-toxicity; the preparation method of the organosilicon material is simple and is easy to carry out; and application of the organosilicon material in 3D printing is maneuverable.
Owner:GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
Use of 15-methano-substituted-andrographolide derivative in preparing anti-hepatitis B medicine
ActiveCN101416958AExpand the range of optionsTo clarify the anti-HBV activity in vitroOrganic active ingredientsDigestive systemHepatitis B virus core AntigenMedicine
The invention discloses the medical application of a 15-methylene replaced andrographolide derivant as shown in general formula 1, more particularly relates to the application thereof in preparing anti-hepatitis B virus drugs, pertaining to the pharmaceutical chemistry field. HepG2.2.15 cells are used for detecting the secretory volumes of HBsAg and HBeAg and the HBV DNA level related to viral particles in the supernatant liquid of a nutrient solution, and the result shows that the 15-methylene replaced andrographolide derivant has good in-vitro anti-HBV effect. The 15-methylene replaced andrographolide derivant has better development and application prospect by being applied in preparing drugs used for treating and preventing Hepatitis B.
Owner:ZHENGZHOU UNIV
Portable and wearable ultrasonic physiotherapy instrument
The invention discloses a portable and wearable ultrasonic physiotherapy instrument which comprises a power supply module (1), a man-machine interaction module (2), a main control module (3), a DDS module (4), a power amplification module (5), a therapy head module (6) and a frequency tracking module (7). The power supply module comprises a rechargeable polymer battery. The therapy head module (6) of the instrument is provided with multiple therapy heads and adsorption structures, an adsorption part of each therapy head is a cone-similar adsorption cover, the effective radiation area of each ultrasonic therapy head ranges from 3 cm<2> to 9 cm<2>, and the effective output sound intensity is smaller than or equal to 3 W / cm<2>. According to the portable and wearable ultrasonic physiotherapy instrument, ultrasonic waves with multiple center frequencies can be outputted and can be continuously adjusted within the range of 0.5 MHz to 3.5 MHz, and the instrument is used for treating patients suffering from the organic cardiovascular disease and patients suffering from sports injuries. The portable and wearable ultrasonic physiotherapy instrument has the advantages of being simple in structure, capable of automatically conducting tracking through frequencies, high in stability, diversified in frequency, high in output power, easy to operate and the like, and can be widely used for in vitro physical treatment for the patients suffering from the organic cardiovascular disease and the patients suffering from sports injuries.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
Medicinal application of 15-benzyl subunit-1 4-deoxy-11,12-dehydrogenation andrographolide derivative
ActiveCN101972247ADefined antitumor activityExpand the range of optionsOrganic active ingredientsOrganic chemistryCancer cellAnti neoplastic
The invention belongs to the technical field of medicine, discloses the application of andrographolide derivative in preparation antineoplastic agents, and relates to 15-benzyl subunit -14-deoxy-11,12-dehydrogenation andrographolide derivative and 3,19 esters thereof. The experience shows that the chemical compounds have the remarkable effects of restraining cancer cell cloning and forming and resisting migration of cancer cell and human vascular endothelial; and the chemical compounds show stronger effects of restraining tumor growth, antimetastasis and antiangiogenic in a mice transplanting tumour animal model. The chemical compounds are used as activity components for preparing antineoplastic agents, have the advantages of high efficient and low toxicity. the invention provides a new drug way for curing and preventing transfer of the tumour, expands selection range of clinical pharmacy, and is significant to taking full advantage of plant resources of the common andrographis herb.
Owner:ZHENGZHOU UNIV
Zinc-based dual-ion battery and preparation method thereof
ActiveCN108242560AImproved capacity and cycle stability performanceExcellent electrochemical performanceCell electrodesFinal product manufactureMetal foilCurrent collector
The invention provides a zinc-based dual-ion battery which comprises a positive electrode, a negative electrode, a diaphragm arranged between the positive electrode and the negative electrode, and electrolyte, wherein the electrolyte is non-water zinc salt electrolyte; the positive electrode comprises a positive electrode current collector and a positive electrode material combined with the surface of the positive electrode current collector; the positive electrode material contains a positive electrode active material, and the positive electrode active material is a layered material enablingthe negative ions forming the zinc salt to be reversibly embedded and separated; the negative electrode is a metal foil; the metal foil serves as a negative electrode current collector as well as a negative electrode active material; and the metal foil enables reversible deposition and dissolution of zinc ions or reversible alloying reaction with zinc.
Owner:SHENZHEN INST OF ADVANCED TECH
Method for selecting frequency control parameters of doubly-fed fan in microgrid
InactiveCN107681689AExpand the range of optionsImprove FM capabilitySingle network parallel feeding arrangementsPower oscillations reduction/preventionFrequency oscillationAnalysis models
The invention relates to a method for selecting frequency control parameters of a doubly-fed fan in a microgrid. The method comprises the steps of determining that a wind turbine generator and a diesel engine participate in a microgrid frequency control strategy in an island mode in common and building a small signal analysis model; and researching characteristic value change trajectories of the microgrid when parameters of a speed regulator of the diesel engine change, finding out a group of typical characteristic roots of reflecting dynamic frequency response characteristics of the microgrid, analyzing the change trajectory rule of obtained typical characteristic values when over-speed control and virtual inertia control parameters of a DFIG change, judging a frequency stability change of the microgrid according to the characteristic value trajectories, obtaining reasonable ranges of over-speed control and virtual inertia control coefficient values of the DFIG and improving PI control parameters. Therefore, the frequency oscillation phenomenon when the over-speed control and virtual inertia control coefficient values exceed the range can be avoided, the ranges of the over-speed control and virtual inertia control coefficient values are expanded, that is to say, a stability margin of the microgrid is increased, and the small interference stability of the microgrid is further strengthened.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
Application of andrographolide C15 substituted series derivatives to preparation of medicine for resisting hepatitis B
ActiveCN102302487AClear anti-HBV activityExpand the range of optionsOrganic active ingredientsOrganic chemistryBULK ACTIVE INGREDIENTViral hepatitis b
The invention belongs to the technical field of medicinal chemistry, and discloses application of andrographolide C15 substituted series derivatives to the preparation of a medicine for resisting hepatitis B. HepG2.2.15 cells are used for detecting the secretion amount of hepatitis B surface antigen (HBsAg) in culture solution supernatant, a large number of andrographolide derivative compounds are screened, and compounds which have high hepatitis B virus (HBV) resistance are optimally selected and have a structure shown in a general formula 1; and the compounds have high HBV-resistant activity, high efficiency and low toxicity and are taken as active ingredients to be used for preparing a medicine for resisting viral hepatitis B, and a new medicine is provided for treating hepatitis, so that the selectable range of clinical medicines is expanded.
Owner:ZHENGZHOU UNIV
Minitype jet pump and preparation method
The invention provides a kind of mini-type jet pump and its preparation method. The pump body includes drive structure and suck structure. The drive structure is made up of ejector nozzle, drive chamber connected to the ejector nozzle; the drive chamber is installed drive liquid inlet hole. The suck structure includes suck entrance end, suck interval channel, and diffusion exit. The ejector nozzle is installed at the diffusion exit; the suck interval channel is installed at the both sides of the ejector nozzle. The high pressure driving gas or liquid is entranced into drive chamber by the drive liquid inlet hole, and jetted with high speed at the exit of the ejector nozzle; as well as, the vortex is appeared at its boundary, the liquid in the suck interval channel is sucked by the vortex scroll to jet; the mixed liquid with the two different flow rate mixed liquid are both flowed into the diffusion exit. The preparation of the mini-type jet pump adopts MEMS technology design to realize by two piece photo etching plate; the selection range of the pump body material is large; and it is easy to integrate with most micro flow system.
Owner:PEKING UNIV
Preparation method of compatibilizer for epoxy resin modified asphalt
The invention relates to a method for preparing a bulking agent of epoxy resin modified asphalt. Epoxy resin modified asphalt material is applicable to pavement of a high-grade road, pavement of steel bridge deck and the like. The method for preparing the bulking agent of the epoxy resin modified asphalt is characterized by comprising the following steps of: 1) selecting the following raw materials in parts by weight: 100 parts of fatty acid, 150-250 parts of epoxy resin, 3-4 parts of catalyst and 580-610 parts of organic solvent for spare use; and 2) dispersing the fatty acid and the epoxy resin into the organic solvent, and adding the catalyst, and heating for 3-5 hours at the temperature of 100-150 DEG C so as to obtain the bulking agent of the epoxy resin modified asphalt. The bulkingagent prepared by the method provided by the invention can cause mixing of asphalt and the epoxy resin to be more uniform.
Owner:WUHAN INSTITUTE OF TECHNOLOGY
Thermosetting epoxy asphalt material and preparation method thereof
The invention relates to a thermosetting epoxy asphalt material and a preparation method thereof, which are mainly used in field of buildings. The thermosetting epoxy asphalt material is characterized by being prepared from the following raw materials in part by weight: 100 parts of asphalt, 20 to 40 parts of epoxy resin, 20 to 40 parts of vulcanizer, 20 to 40 parts of curing agent, 0.3 to 1.2 parts of curing accelerator and 20 to 60 parts of oleoylchloride thermosetting epoxy asphalt compatibilizer. In the thermosetting epoxy asphalt material prepared by the method, the asphalt and the epoxy resin are uniformly mixed.
Owner:湖北永阳材料股份有限公司
Wine making method using live Mao bamboos as base body
The invention discloses a wine making method using live Mao bamboos as a base body. The wine making method comprises the following steps of: preparation, wine growing, wine making, wine collection and detection. During wine growing, live Mao bamboos are adopted so that bamboo fragrance and nutrients in the bamboos can be gradually infused into the wine along with the growth of the bamboos. During the entire wine making process, the wine in the bamboo cavities is completely sealed and healthy grows to mature under aseptic conditions isolated from outside air. The finished wine contains various nutrient substances beneficial to human bodies, and the alcoholic strength in the raw wine liquid is well controlled. The wine has good taste, high nutrients and obvious health preserving action. The grown wine has wind selectivity range, wide wine seed application scope and low processing requirement. The Mao bamboos are adopted as a base body for processing the wine, so that the use of raw material is quick, the operation is friendly to the environment, and no pollution occurs.
Owner:王科路
Earphone interface circuit and electronic device provided with the same
ActiveCN102457793AExpand the range of optionsConvenient for daily useEarpiece/earphone attachmentsTransducer circuitsEngineeringHeadphones
The invention provides an earphone interface circuit and an electronic device provided with the earphone interface circuit. The earphone interface circuit comprises an earphone jack socket and a shift switch, wherein the shift switch comprises a first switch and a second switch, one end of a stationary contact of the first switch is connected to a second switching spring piece, and the other end of the stationary contact of the first switch is grounded; a movable contact of the first switch is connected to a first power supply, and a node is formed; stationary contacts of the second switch are respectively connected to a first switching spring piece and the node, and a movable contact of the second switch is grounded; when earphones are inserted, a left sound channel spring piece, a right sound channel spring piece, the first switching spring piece and the second switching spring piece are respectively connected to corresponding connection points on the earphones. Types of the earphones can be judged by means of detecting a voltage of the node, and switching of the shift switch can be correspondingly controlled.
Owner:东莞市桔外人电子有限公司
Display device and display method
The invention provides a display device and a display method. The display device comprises an upper electrode layer, a base electrode layer, a lower electrode layer and a plurality of light emitting units, wherein the base electrode layer is connected to the upper part of the upper electrode layer and comprises a plurality of variable-focus liquid lens cavities; oily liquid and conducting liquid are arranged in the cavities from bottom to top; an insulating hydrophobic membrane is arranged on the surface of the inner wall of each of the cavities; a plurality of discrete metal electrodes are arranged between the surface of the inner wall of each of the cavities and the insulating hydrophobic membrane for changing the optical axis inclination and the imaging focus length of a liquid lens, sothat the display device can present a two-dimensional or three-dimensional display mode; the lower electrode layer is connected to the lower part of the base electrode layer; and the plurality of light emitting units are arranged below the lower electrode layer and correspond to the positions of the variable-focus liquid lens cavities. The display device can freely switch between a 2D display mode and a 3D display mode, and can automatically and continuously change focus to relieve the eye fatigue of an observer; and the manufacturing of the liquid lens can be fused with the current industrial tablet display technology.
Owner:上海酷聚科技有限公司
Substrate cooling device based on directional solidification characteristic for promoting laser additive reproduction
PendingCN108637254AEnables Direct Directional CoolingRaise the temperature gradientAdditive manufacturing apparatusIncreasing energy efficiencyEngineeringDirectional solidification
The invention relates to a substrate cooling device based on the directional solidification characteristic of promoting laser additive reproduction. The substrate cooling device comprises a tank body.The top surface of the tank body is recessed downward to form a water tank with an upward opening. An inlet for inputting a cooling medium into the water tank is formed in one side of the tank body.An outlet for draining the cooling medium in the water tank is formed in the other side of the tank body. Both the inlet and the outlet are communicated with the water tank. A ring of sealing groove is formed in the portion, around the opening of the water tank, of the top surface of the tank body, and a sealing ring is arranged in the sealing groove. The cooling device further comprises a cover plate sheet for locking the edge of a substrate laid on the water tank onto the tank body, the cover plate sheet and the top surface of the tank body are detachably connected through a connecting partto clamp the substrate to the position between the tank body and the cover plate sheet, and the substrate covers the sealing groove. A window for exposing the upper surface of the substrate is formedin the cover plate sheet.
Owner:ZHEJIANG UNIV OF TECH
Pressurized borrowing method and device and storage medium
PendingCN109409886AReduce riskExpand the range of optionsProtocol authorisationBlockchainComputer science
The invention provides a pledge borrowing method, pledge borrowing equipment and a storage medium. The method comprises the following steps: receiving pledge borrowing requests sent by a plurality ofborrower terminals and lending requests sent by a plurality of lender terminals respectively, wherein the pledge borrowing request comprises evidence storage information of a quality object requestedto be quality, and the evidence storage information is recorded on a first block chain; matching each pledge borrowing request with each lending request, generating a pledge borrowing transaction according to the matched pledge borrowing request and lending request after the matching is successful, and sending the pledge borrowing transaction to a node of the first block chain so as to record thepledge borrowing transaction on the first block chain; Hanging and selling the pleated and borrowed goods, and recording hanging and selling information to the first block chain; and if the hanging and selling information is sold successfully, generating a borrowing compensation transaction and sending the borrowing compensation transaction to the node of the first block chain to record the borrowing compensation transaction to the first block chain. The invention provides a pledge scheme for reducing the derogatory risk of a quality substance.
Owner:HANGZHOU FUZAMEI TECH CO LTD
Combustion presure data collecting and combustion analytic system for engine cylinder
InactiveCN1821907AShorten the development cycleStrong real-timeComputer controlProgramme control in sequence/logic controllersCombustion analysisAudio power amplifier
This invention relates to an automatic system used in collecting and analyzing the combustion pressure data in the cylinder of a lower-middle speed engine connected by a pressure sensor, a Hall sensor, an upper dead point gear disk, a signal amplifier, a terminal board, a data collection card and a PC, in which, said system amplifies the pressure signal in the cylinder collected by the pressure sensor by a signal amplifier and cuts in it together with the signal of the upper dead point collected by the Hall sensor to the terminal board then collects the signals into the PC set by a high speed collecting card and the software of the data collection and combustion analyzing system mounted in the PC set displays the collected signal waveforms to compute curves of combustion heat discharge rate, heating volume and the temperature in the cylinder.
Owner:BEIJING JIAOTONG UNIV
Multi-element premixed foaming device and method
The invention discloses a multi-element premixed foaming device and method. The multi-element premixed foaming device comprises a white material premixed system, a black material premixed system, a temperature controlling system and a foaming machine, wherein the white material premixed system comprises a polyhydric alcohols composite storage tank, a plurality of high boiling point foaming agent storage tanks, a white material premixed middle tank and a white material premixed working tank; the black material premixed system comprises an isocyanate storage tank, a plurality of low boiling point foaming agent storage tanks, a black material premixed middle tank and a black material premixed working tank; and the temperature controlling system comprises the white material premixed middle tank and a white material premixed working tank temperature controlling device, the black material premixed middle tank and a black material premixed working tank temperature controlling device. According to the multi-element premixed foaming device, a foaming agent with the high boil point is premixed into a white material, a foaming agent with the low boil point is premixed into a black material, the temperature of a white material premixed material and the temperature of a black material premixed material are controlled correspondingly, the performance of foaming agents with the different properties can be further advantageously developed, meanwhile, the selectable range of the foaming agents is widened, and prepared foam articles are better in performance.
Owner:HEFEI HUALING CO LTD +2
Near-field radio frequency identification (RFID) reader plane opening dual-ring antenna for ultra high frequency (UHF) band
InactiveCN102820535ASimple structureStructure miniaturizationRadiating elements structural formsAntenna earthingsFrequency spectrumResonance
The invention discloses a near-field radio frequency identification (RFID) reader plane opening dual-ring antenna for an ultra high frequency (UHF) band. The antenna is in a plane structure and comprises an antenna radiating unit, a dielectric substrate and a matching patch, wherein the antenna radiating unit is attached to one surface of the dielectric substrate and is a radiating body of the antenna, and the matching patch is attached to the other surface of the dielectric substrate and is a ground terminal of the antenna. The antenna is simple in structure and easy to produce. Frequency points and bandwidths of resonance frequency of the antenna can be changed within broad radio-wave spectrum through the adjustment of antenna structural parameters. The antenna can meet RFID system radio-wave spectrum which is regulated by different nations and is applied to near-field mobile terminal RFID application such as mobile payment and article anti-faking and tracing.
Owner:SOUTH CHINA UNIV OF TECH
Sulfolane based binary sodium ion electrolyte and preparation method thereof
InactiveCN105811001AImprove thermal stabilityWide electrochemical windowSecondary cellsElectrolytesSulfolaneElectrochemical window
The invention discloses a sulfolane based binary sodium ion electrolyte and a preparation method thereof, belonging to the technical field of a sodium ion battery. The binary sodium ion electrolyte comprises a binary mixed solvent and an electrolyte salt, wherein the binary mixed solvent comprises sulfolane and an ester additive or the sulfolane and an ionic liquid. The method comprises the following steps of uniformly mixing the sulfolane and the ester additive or the sulfolane and the ionic liquid in a certain environment to obtain the binary mixed solvent; and dissolving the electrolyte salt in the binary mixed solvent, and allowing the obtained mixture to stand to obtain the sulfolane based binary sodium ion electrolyte. The binary sodium ion electrolyte has the advantages of high thermal stability, wide electrochemical window and favorable room-temperature ionic conductivity, the selectable range of the current sodium ion battery electrolyte is expanded, and the sulfolane based binary sodium ion electrolyte is the sodium ion battery electrolyte with low cost and high safety and has wide application prospect in aspects such as the sodium ion battery and an energy storage sodium battery system.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Application of timosaponin AIII in anemarrhena to preparation of antitumor drugs
InactiveCN103599122ADefine broad-spectrum antitumor activityExpand the range of optionsOrganic active ingredientsAntineoplastic agentsIc50 valuesCytotoxicity
The invention discloses application of timosaponin AIII in anemarrhena to preparation of antitumor drugs, which belongs to the field of pharmacology. Pharmacological experiments prove that timosaponin AIII has broad-spectrum strong antineoplastic activity, especially strong and stable cytotoxicity on T475-S2 cells; timosaponin AIII has stronger capacity in killing T475-S2 cells compared with 5-Fu and paclitaxel; the IC50 value of timosaponin AIII is 6.97 +- 0.72 mu M after 24 h, the concentration of used timosaponin AIII is 6 mu M, timosaponin AIII can induce apoptosis and autophagy of T475-S2 cells, the effect of apoptosis is dominating, so timosaponin AIII can be used for preparing drugs for preventing and treating tumors.
Owner:SHENYANG PHARMA UNIVERSITY
Flip chip packaging structure and process, and camera module packaging structure
InactiveCN107968077AStable supportEffective protectionSemiconductor/solid-state device detailsSolid-state devicesPlastic packagingFlexible circuits
The invention discloses a flip chip packaging structure and a flip chip packaging process, and a camera module packaging structure. The flip chip packaging structure comprises a substrate, a sensor, aflexible circuit board and a plastic packaging layer, wherein a mounting groove is formed in the back surface of the substrate, the sensor is arranged in the mounting groove, the flexible circuit board is arranged on back surface of the substrate in a manner of completely or partially avoiding the mounting groove, the sensor and the flexible circuit board are electrically connected with the substrate, and the plastic packaging layer covers the mounting groove, the sensor and a connecting part of the flexible circuit board and the substrate. According to the flip chip packaging structure, theflexible circuit board completely or partially avoids the mounting groove, the plastic packaging layer is formed through injection molding into the mounting groove via a gap between the flexible circuit board and the mounting groove, effective support and protection are formed at the sensor and the joint of the flexible circuit board and the substrate by means of the plastic packaging layer, the reliability of the packaging structure is improved, and the installation difficulty is reduced, thus the substrate is no longer restricted to a ceramic substrate, thereby reducing cost of the packagingstructure, shortening the delivery cycle, and improving economic efficiency of an enterprise.
Owner:TRULY OPTO ELECTRONICS
Modified epoxy resin thermosetting epoxy asphalt bulking agent and preparation method thereof
InactiveCN101955675AHigh strengthIncrease stiffnessOrganic compound preparationCarboxylic acid esters preparationOleic Acid TriglycerideAsphalt
The invention relates to a bulking agent and a preparation method thereof. The preparation method of the modified epoxy resin thermosetting epoxy asphalt bulking agent is characterized by comprising the following steps of: selecting 80 parts of epoxy resin, 187 parts of trichloromethane, 100 parts of oleic acid and 0.01-0.1 part of stannic chloride by weight; dissolving the epoxy resin into the trichloromethane; adding the oleic acid; and dripping the stannic chloride at 40 DEG C-45 DEG C to react for 1-1.5 hours to obtain the modified epoxy resin thermosetting epoxy asphalt bulking agent. The bulking agent obtained in the method can ensure that the asphalt and the epoxy resin are mixed more uniformly.
Owner:湖北永阳材料股份有限公司
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