313 results about "Induction time" patented technology

The oil or fat composition of the invention contains a monoacylglycerol and / or a diacylglycerol in a total amount of 5-100 wt. % and which exhibits an index of stability against oxidation (induction time as measured through a Rancimat test conducted at 100° C.) of 7 or higher, wherein the monoacylglycerol and / or the diacylglycerol contain, as fatty acid constituents, ω3 unsaturated fatty acids in amounts of 15-90 wt. %. Through ingestion thereof in a small amount without drastically changing the person's lifestyle, the highly harmless oil / fat composition of the present invention provides effects for reducing and preventing accumulation of body fat, for reducing and preventing accumulation of visceral fat, and for prevention and treatment of obesity; and exerts an excellent prevention and treatment effect on life-style related diseases through long-term ingestion. Thus, the composition of the present invention is useful for foods, pharmaceuticals and pet food or feed.

The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.

An efficient composite hydrate inhibitor is stable and economical. Salt or alcohol is added into dynamic inhibitor. It has less hydrate and longer generating time, wide applied range and no environmental pollution.

A composition of (a) a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer; and (b) a nonfluorinated catalyst composition that includes a compound having the general formula: {RA}(−){QR′k}(+) or in certain cases the precursors thereof, wherein R is hydrogen, an alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or aralkyl, A is an acid- or acid-derivative anion, Q is phosphorous, sulfur, nitrogen, arsenic, or antimony, and each R′ is hydrogen or an alkyl, aryl, aralkyl, or alkenyl group, k is the valence of Q; and optionally (c) an alcohol of the formula R2—OH, wherein R2 is an alkyl group which can be partially fluorinated. Also provided are a method of making a fluoropolymer, a method of increasing induction time, and fluoropolymer articles containing curable or cured fluoropolymer compositions.

The invention relates to the technical field of energy materials, and discloses a hydrate accelerator and an application thereof in preparing a high-gas-storage-density gas hydrate. The accelerant comprises amino acid and water, and is prepared by well mixing 100 parts by mass of water and 0.05-5 parts by mass of amino acid. The application comprises the specific steps that 100 parts by mass of water and 0.05-5 parts by mass of amino acid are well mixed, such that an accelerant water solution is obtained; the accelerant water solution is placed in an autoclave; high-pressure gas is delivered in under a low temperature; and a reaction is allowed for a period of time, such that the high-gas-storage-density solid gas hydrate is obtained. The accelerant provided by the invention is green and environment-friendly. With the accelerant, hydration induction time can be reduced, gas storage capacity can be increased, and gas storage density can be improved. The accelerant provided by the invention also has the advantages of low price, low dosage, and wide source. The accelerant is recyclable, and has no special requirement on temperature and pressure conditions. The method for preparing the high-gas-storage-density gas hydrate is fast, highly efficient, simple, and easy to realize.

The disclosure provides a method and apparatus for forming gas hydrates from a two-phase mixture of water and a hydrate forming gas. The two-phase mixture is created in a mixing zone which may be wholly included within the body of a spray nozzle. The two-phase mixture is subsequently sprayed into a reaction zone, where the reaction zone is under pressure and temperature conditions suitable for formation of the gas hydrate. The reaction zone pressure is less than the mixing zone pressure so that expansion of the hydrate-forming gas in the mixture provides a degree of cooling by the Joule-Thompson effect and provides more intimate mixing between the water and the hydrate-forming gas. The result of the process is the formation of gas hydrates continuously and with a greatly reduced induction time. An apparatus for conduct of the method is further provided.

The invention discloses a novel hydrate kinetic inhibitor and a preparation method and applications thereof. The preparation method comprises the following steps: dissolving a monomer into a solvent, adding an initiator to trigger the polymerization of a solution, to obtain a novel hydrate kinetic inhibitor, wherein the main component of the inhibitor is polyhydroxyl polymer; the monomer is prepared by reacting chlorophenol with N-vinyl caprolactam or N-vinnyl pyrrolidone. The inhibitor has an effect that other inhibitors are combined with alcohols for use, can bear low supercooled temperature, the formation and induction time of a hydrate can be prolonged, the inhibitor of the hydrate inhibitor can be improved, and the novel hydrate kinetic inhibitor is high in efficiency, low in dose, wide in applicability and the like.

The invention discloses a polyolefin composite insulating material with the high thermal-oxidative stability and a preparation method thereof. The polyolefin composite insulating material is prepared from, by mass, 98%-99.5% of a polyolefin polymer matrix and 0.5%-2% of modified graphene oxide packing, wherein antioxidant-functionalized graphene oxide coated with polydopamine is adopted as the modified graphene oxide; through a grafted antioxidant, the thermal-oxidative stability of the material can be improved, and the graphene oxide can play a role in inhibiting migration of the antioxidant. By adopting the modified graphene oxide, not only can the interface bonding force between the polymer matrix and the packing be enhanced, but also the graphene oxide can be prevented from being deep reduced in the preparation process of the composite insulating material, and therefore the composite material keeps the good insulating property. The prepared polyolefin composite insulating material with the high thermal-oxidative stability has the advantages of being long in oxidation induction time, low in dielectric constant and dielectric loss and the like and is suitable for electric wire and cable insulating materials.

The invention discloses a pixel circuit, an organic electroluminescent display panel and a display device. The pixel circuit is characterized in that a first node is initialized in the initializing time periods of a touch control phase and a display phase; the voltage of the first node is regulated in the touch control induction time period; a driving module is enabled to output a corresponding touch control signal under the control of the voltage of the first node in the touch control reading time period for realizing a touch control function; data writing is performed on the first node in the compensation and data writing time period of the display phase; the driving module is enabled to drive a light emitting device in a light emitting module to emit light in a light emitting time period for realizing the normal light emitting function of the light emitting device. Thus, compared with a traditional pixel circuit, the pixel circuit provided by the embodiment of the invention integrates the touch control function and a display function, so that the manufacturing cost of respectively arranging a display driving circuit and a touch control circuit can be reduced; the circuit structure is simplified; and the thickness of the display panel can also be reduced.

The invention relates to a culture method for inducing adipose tissue-derived stromal cells to differentiate to chondrocyte, and aims to solve the problem that the prior art is low in differentiation rate. The culture method comprises the following steps: 1) performing separation of primary cells of adipose tissue-derived stromal cells; 2) performing amplification and passage of the adipose tissue-derived stromal cells; and 3) performing differentiation culture on P5-generation adipose-derived stem cells to chondrocyte, namely, adding the adipose tissue-derived stromal cells into a condition culture medium, namely, an adipose tissue-derived stromal cell chondrocyte differentiation culture medium, after P5 generation of passage, performing chondrocyte differentiation culture, replacing the medium of the cells every 3 days, observing the morphological change of the cells, and after 16 days of induction, performing Alcian blue dyeing, and identifying the chondrocyte differentiation situation of the adipose tissue-derived stromal cells. The result of Alcian blue dyeing identification shows that the chondrocyte can be formed, and the Alcian blue dyeing is positive. The culture method has the characteristics of being simple and feasible, short in induction time as the induction culture medium is a serum-free culture system, good in test repeatability and high in osteoblast differentiation rate.

A method for preparing nanoparticle-enhanced refrigerant hydrate phase-change cold storage refrigerants, using the solubilization effect of compound surfactants, dissolving refrigerants in water to prepare thermodynamically stable refrigerant microemulsions, and then dispersing nanoparticles In the refrigerant microemulsion, a refrigerant hydrate phase-change cold storage working substance strengthened by nanoparticles is prepared. By stably dispersing nanoparticles in the refrigerant microemulsion system to enhance heat and mass transfer, increase the reaction interface, and induce heterogeneous nucleation, thereby significantly reducing the induction time and subcooling degree of hydrate formation, effectively achieving crystallization effect. The product of the invention can be widely used in fields such as peak shifting of electric power, building energy saving, cold storage air conditioner, refrigeration and preservation of agricultural products and biological products, high and low temperature cold storage and refrigerated logistics, etc., and can achieve the purpose of effective cold storage and release of cold and rational use of energy.

A controlling method for touching induction garbage container with standby-opening function is provided. It provides a standby-opening working mode managed by a timing unit provided in a microcontroller. The timing unit times the triggering time of the microswitch foot pedal. As a user has touched the microswitch foot pedal for more than an induction time, setting as “t” seconds, the microcontroller will be switched to the standby-opening working mode. The microcontroller will be switched back to a regular working mode if the microswitch foot pedal is being touched again. The present invention provides a technical solution of a practical combination of a regular working mode and a standby-opening working mode, which is fully ergonomic and easy to utilize while ensuring service life spans of the driving mechanism and apparatus, increasing service life span of the battery and enhancing the power-saving performance of the touching induction garbage container.

The invention discloses an induction time-delay faucet. The induction time-delay faucet is characterized in that the induction time-delay faucet comprises a 12V direct-current power supply, a microwave induction and detecting circuit and a monostable time-delay and electronic control faucet driving circuit; the model of a microwave induction controller IC2 in the microwave induction and detecting circuit is TX982; the monostable time-delay and electronic control faucet driving circuit is composed of a time-base circuit IC1, a resistor R1, a timing capacitor C1 and an electronic control faucet, and the model of the time-base circuit IC1 is NE555. According to the induction time-delay faucet, a new path is found; the induction time-delay faucet is made of common electronic components completely; the induction time-delay faucet has the advantages of being simple in structure, low in manufacturing cost, capable of withstanding voltage and convenient to repair, and being convenient to operate, sanitary and low in power consumption and the like in the aspect of usage; the faucet is suitable for the occasions such as hotels, office buildings, hospitals, passenger stations and airports.

A composition for preparing polyethylene pipe with superhigh molecular weight and a preparation method thereof are disclosed. The composition is prepared by the following raw materials by weight percentage: polyethylene with superhigh molecular weight: fluoropolymer processing agent: polyethylene wax: calcium stearate / zinc stearate compound: complex antioxidant: carbon black is equal to 100 parts: 0.01-0.1: 1-8:0.1-1.0:0.1-0.5:0.5-3. The preparation method comprises the steps of: putting the polyethylene resin with superhigh molecular weight, starting a mixer, putting the calcium stearate / zinc stearate compound into the mixer to mix for 1-2 hours, then adding the complex antioxidant, polyethylene wax, fluoropolymer processing agent and carbon black to mix for 2-3 hours; and detecting the bulk density according to GB / T1636 and sealing and packaging. The polyethylene pipe composition with superhigh molecular weight prepared by the method has excellent heat-resisting and anti-aging performance with oxidation induction time at 200 DEGC longer than 30 minutes. The polyethylene pipe composition with superhigh molecular weight further has excellent mechanical, wear-resisting, corrosion resisting, heat-resisting and anti-aging properties and extrusion process performance.

The invention discloses a sign-in system based on an NFC terminal. The system comprises the NFC terminal, a service logic module, a check-in module, a registration module and the like. According to the invention, a user registers terminal NFC data and user data on the system; the system is bound with the user, the terminal and NFC identification codes; in a sign-in scene, the user holds the NFC terminal operating in a card mode, an NFC reader is used as an induction part of the system, and when the terminal is sensed, terminal data and corresponding bound user data, induction time and place, etc. are queried and recorded as sign-in data. Through combination of identification characteristics of the terminal based on NFC and the a conference sign-in system, the sign-in system based on the NFC terminal provided in the invention is simple and fast.

The invention relates to a continuous preparation method for spray strengthening hydrate. Some water is compensated in reactor so that decompressed steam enters into the reactor and water is atomized and enters into the reactor after water is compressed. The temperature in hydrate preparation process is controlled in the combination of inner cooling and outer cooling. The continuous preparation device for spray strengthening hydrate comprises air supply system, water flow atomization system and refrigeration system, reactor with partition cooling channel and chilled water circulating system. Air source is connected with buffering tank, filter, decompressed controlling valve, pressure gauge and air inlet on the reactor by valve. A vacuum pump is set between the controlling valve and the air inlet. Water source is connected with pressing pump, outer cooler, pressure gauge, thermometer and atomizing nozzle. The outer cooler is connected with the refrigeration system. Refrigerant compensation and refrigeration system and refrigerant circulating pump are connected with chilled water inlet on the reactor. The system can realize continuous and quick preparation for hydrate and shorten induction time for hydration reaction.

The present invention related to a method of manufacturing a polycarbonate including the process of copolymerizing epoxide compound and CO2 using cobalt(III) or chromium(III), where the ligands contains at least 3 ammonium cations, central metal has formal −1 charge, and conjugated anions of the two cationic ammonium groups are acid-base homoconjugation, as catalyst.According to the present invention, the initial induction time can be reduced when the said polycarbonate is manufactured and it is possible to improve the activity of the catalyst and the molecular weight of the obtained polymer.

The invention discloses a fuel battery low-temperature starting grading preheating control method. According to the fuel battery low-temperature starting grading preheating control method, an electric pile, a sensor for measuring the temperature of the electric pile, a fuel supply system, an oxidizing agent supply system, a cooling medium circulating medium, an electric pile power output circuit, an external heat source heating system, an internal heat source heating system and a total control system are provided, wherein the external heat source heating system utilizes a mode of directly heating the electric pile by an electric heating wire, or a mode of circularly heating the electric pile after a cooling medium is heated or a mode of heating the electric pile after the air is heated; and the internal heat source heating system utilizes heat generated by electrochemical reaction of the electric pile or heat generated by catalytic combustion in the electric pile. According to the method, the preheating mode of the electric pile is determined based on a change relation between supercooling degree and the induction time of liquid water icing influenced by a porous medium material component and a microporous structure and according to the environment temperature of fuel batter low-temperature starting, safe, rapid and efficient starting of the electric pile is guaranteed, and the durability of the electric pile is improved.

The invention discloses an intelligent sensing system for running exercise. The system comprises a wireless identity recognizer with an RFID electronic label embedded therein, a background server and a plurality of motion detection piles arranged at intervals, wherein each motion detection pile comprises a master control card, and a power supply, an RFID reader-writer, a wireless communication module, a display screen, a speaker and an LED lamp which are connected with the master control card, the RFID reader-writers receive identity identification information of the RFID electronic label, and the master control cards record the identity identification information of the RFID electronic label, time points of induction time of the RFID reader-writers and the RFID electronic label and position information of the motion detection piles at the time for uploading recorded information to the background server through the wireless communication module, obtain running exercise data through calculation processing by the background server and send the exercise data needing to be displayed to a mobile phone and a display screen through wireless communication. According to the invention, the system and method can accurately obtain the running exercise data of multiple persons and have the advantage of high positioning precision, thereby being widely applied to running training of athletes, jogging of the public and physical tests.

The invention belongs to the technical field of preparation of chemical reagents, particularly relates to a polycyclic polymerized natural gas hydrate dynamic inhibitor and a preparation method. N-vinyl pyrrolidone (NVP), N-vinyl caprolactam (NVCL), acrylamide (AM) and acrylonitrile (AN) are used as synthesizing monomers, ammonium persulfate and sodium bisulfite are used as initiators, free radical solution polymerization reaction is performed in a solvent to obtain the hydrate inhibitor, wherein the monomers include, by mass, NVP 40-70%, NVCL 10-40%, AM 5-20% and AN 5-10%, the initiators account for 0.3% of the total mass of the monomers, and the mass ratio of the two initiators is 1 to 1. The mass ratio of the synthesized hydrate inhibitor to ethylene glycol is 1.5:80 to 2:80, and the best inhibition performance is obtained through compatibility. The synthesized inhibitor reduces the hydrate generation temperature to a greater degree, prolongs the induction time and is suitable for recovery and delivery of oil and gas fields. The polycyclic polymerized natural gas hydrate dynamic inhibitor is quick and convenient to synthesize, low in cost, easy to biodegrade and wide in application prospect.

Methods of controlling the degradation profile of a biodegradable stent scaffolding are disclosed. A bioabsorbable scaffold having a plurality of particles incorporated into the scaffolding that accelerate the absorption of the scaffolding after an induction time during degradation is disclosed.

The invention discloses application of amino acid as a hydrate accelerant and application of amino acid as the hydrate accelerant in capturing and sealing of carbon dioxide. The application of amino acid as the hydrate accelerant is particularly application of amino acid as a CO2 hydrate accelerant. The application of amino acid as the hydrate accelerant in the capturing and the sealing of carbon dioxide comprises the following steps: (1) uniformly mixing 100 parts by weight of water and 0.01-3 parts by weight of amino acid, so as to obtain an amino acid water solution; (2) injecting the amino acid water solution into a high-pressure reaction kettle; (3) introducing high-pressure CO2 gas into the high-pressure reaction kettle to react, so as to obtain solid CO2 hydrate with high air storage density, thereby realizing the efficient capturing and sealing of carbon dioxide. By utilizing amino acid as the CO2 hydrate accelerant, the application meets the scientific concept of ''environmental friendliness'' and economic and efficient, the hydration induction time can be greatly shortened, and the gas capturing capacity can be increased.

A sensor apparatus is disclosed that includes a testing chamber or testing chamber arrays configured to receive a sample of oil to be tested. A first embedded heater is coupled to the testing chamber or testing chamber arrays and configured to supply heat to the sample. An oxygen flux chamber is coupled to the testing chamber or testing chamber arrays and configured to provide a substantially stable oxygen flux to the testing chamber. A control module is coupled to the testing chamber, the first embedded heater, and the oxygen flux chamber. The control module is configured to monitor the temperature of the sample, direct the first embedded heater to supply heat to the sample, direct the oxygen flux chamber to provide oxygen flux to the testing chamber, measure an oxygen induction time (OIT), and evaluate the oxidation stability of the sample based on the OIT. A method for thermal analysis of oil oxidation stability is also disclosed.

The invention includes a composition comprising a vinyl sulfone monomer, a thiol monomer and an acrylate monomer. In one embodiment, the thiol monomer reacts with the vinyl sulfone monomer preferentially over the acrylate monomer, and this differential selectivity allows for the control of the architecture of crosslinking polymer network. The invention further includes a composition comprising an electrophilic monomer, a nucleophilic monomer, a nucleophilic catalyst and an acid, wherein the concentrations of the nucleophilic catalyst and acid are selected as to provide a specific induction time for the polymerization reaction of the composition.

A transducer used for measuring oxidation-stability of oil is prepared for arranging test chamber for receiving tested oil sample on said transducer, connecting embedded heater to test chamber for providing heat on said sample, connecting oxygen stream chamber to test chamber for providing stable oxygen stream to test chamber, connecting control module to test chamber and embedded heater as well as oxygen stream chamber for estimating out oxidation-stability of oil sample according to OIT. The heat-analyzing method of oil oxidation-stability is also disclosed.

The invention relates to the field of building materials, in particular to a doped organic indican concrete reinforcement corrosion inhibitor and application. The corrosion inhibitor disclosed by the invention is composed of the following components by weight percent: 5-15% of organic indicant, 5-10% of organic amine, 5-10% of organic alcohol, and 65-85% of water. When being used, the corrosion inhibitor disclosed by the invention is directly added into water to be dissolved according to the suggested amount of the corrosion inhibitor; simultaneously, the corresponding water amount is deducted according to the proportion of water in the components; the addition amount of the corrosion inhibitor disclosed by the invention is calculated according to the cement amount required for every cubic metre of concrete structure; the doped organic indican concrete reinforcement corrosion inhibitor disclosed by the invention is capable of effectively retarding corrosion of concrete reinforcements and prolonging the induction time of chloridion to locally corrode reinforcements and is free from obvious negative impacts in the structural performances of the concrete body; and the doped organic indican concrete reinforcement corrosion inhibitor disclosed by the invention can be widely applied to offshore, harbour, wharf, coastal and civil reinforced concrete buildings.

The invention aims at providing a method for separating and purifying sodium salts in arsenic alkali residue. The method can help separate high-purity sodium carbonate and sodium arsenate from antimony smelting arsenic alkali residue to achieve recycling of the sodium carbonate and sodium arsenate. The method comprises condensing a sodium arsenate composite salt solution at 60-70 DEG C to separate out most of Na2CO3 out of the solution, at the moment, all As is in the solution. Both magnetic fields and ultrasound can change the thermodynamic properties of chemical compounds and affect the solubility, the crystallization induction time, the width of the metastable region and the crystallization manner. A filter liquor a contains large amounts of Na+, under the coupling action of specific temperature and the magnetic field and ultrasound of the corresponding intensity, strong common-ion effects enable most of sodium arsenate to crystalize from the solution and other impurity components to stay in the solution. Meanwhile, by performing the pretreatment in the step 3) on the filter liquor a before the ultrasound and magnetic field treatment, the content of arsenic in crystalized sodium arsenate can be improved.

A preparation method of the Cap antigen of testing pig cirque virus two type antibody, the method includes steps as follow: (1)PCR clone coding gene of PCV2 ORF2; (2)designing and reforming the expression vector rCap; (3)in the culture medium of improved LB liquid, 37deg induction orderly and low temperature long-playing induction rCap expression; (4) sublimating rCap protein; of which the culture medium of improved LB liquid containing 6-9g / L peptone,6-9g / L sodium chloride and 2-4g / L yeast extract; taking the inductor IPTG to induce rCap expression, the finally thickness of it is 0.05-0.2 mol / L; the first inductive temperature of inducing the rCap expression is 37deg, the second inductive temperature of inducing the rCap expression is 16-20deg; the first inducing time is 3-6 hours for induction rCap expression, the first inducing time is 12-20 hours. The method accelerates rCap to bring solubility rCap proteinin the Escherichia coli, reducing the form of occlusion body, avoiding the process of the complicated denaturation and renaturation, at the same time, the biology activity of solubility rCap protein which gets by separating and sublimating is close to PCV2 virus native protein.

An automatic charging device and method of an automatically traveling cleaner are disclosed. Since a charging terminal unit is installed inside a traveling cleaner (30) and selectively drawn out, the traveling cleaner (30) is prevented from being damaged from collision with an object while being moved forwardly. In addition, because a power source terminal (111), a contact sensor unit (120) and a charging terminal unit (130) are formed in a shape of a circular arc, the entering angle of the traveling cleaner (30) widens, so that the charging induction time can be much reduced and the charging can be performed easily and quickly.

The invention relates to a high performance fat soluble anti-oxidant fat soluble tea polyphenol and a preparation method thereof. The content of the fat soluble tea polyphenol is 45-65, the content of the total esterified esters is 45-65, and the fat soluble tea polyphenol is obtained by reacting thionyl chloride and C12-C18 fatty acid to prepare fatty acyl chloride and then acylation the fatty acyl chloride with tea polyphenol. When the concentration of fat soluble tea polyphenol is 500ppm, inhibition ratio of AAPH can reach 98. 7; when the concentration is 50ppm, the inhibition ratio of DPPH is 90. 5; and when the temperature is 120 degree C and the concentration is 200ppm, the induction time is 280. 8min. The fat soluble tea polyphenol may not only be apply to the lipid products, but also be simple to prepare, and the preparation method is a method suitable for industrial production.