225results about How to "Inhibitory concentration" patented technology

The invention discloses an environment-friendly aluminum cleaning agent and a preparation method thereof. The cleaning agent is composed of the following components in percentage by weight: 20% to 25% of inorganic acid, 10% to 20% of organic acid, 10% to 18% of surfactant, 8% to 15% of osmotic agent, 6% to 18% of emulsifier, 2% to 8% of antifoaming agent, 5% to 8% of complexing agent, and 25% to 30% of water. In the provided cleaning agent, the using amount of hydrochloric acid, sulfuric acid, and nitric acid is reduced, the aluminum parts are washed by medium-strong acids and organic acids, and the cleaning agent has a very good oil stain and rust removing ability. The cleaning agent is acidic, the pH value of the cleaning agent is 2.1 to 5.6, and the cleaning agent can well remove the oxide scale on the aluminum surface. Because the acidity of the organic acids is weak, the over-corrosion on work tools and acid volatilization, which can harm the workers' health, are effectively avoided, and the cleaning effect is not influenced at the same time. Moreover the adopted organic acids are easy to decompose, and thus the cleaning agent is environment-friendly.

The present invention features that the waste organic gas recovering and treating apparatus includes also one rectifying and recovering system, which comprises rectifying tower between the outlet of analyzed gas and the condensator and solvent accepting trough between the rectifying tower and the condensator and is for recovering the organic solvent; and may includes also one analyzed gas by-pass cooling system and one gas distributing baffle. The method of recovering and treating waste organic gas may be alternate single stage adsorption-analysis-cooling and dehumidifying in two or three serially connected adsorbors, and through connection and arrangement of pipeline and valves, uninterrupted recovering and treating of waste organic gas is realized.

The invention discloses an organic electroluminescent device, comprising a substrate, an anode layer and a cathode layer, wherein the anode layer or the cathode layer is positioned on the surface of the substrate. The organic electroluminescent device also comprises organic functional layers between the anode layer and the cathode layer. The organic functional layers at least include a luminescent layer which emits light by being driven by an applied power source. The luminescent material combines the organic fluorescent dye with the matrix molecules by chemical bonds by way of chemical crosslinking, so that energy transfer of the luminescent material is improved, thus not only avoiding the complex process caused by doping, but also avoiding the dye from being separated in the matrix molecules, optimizing the device structure and improving the luminescent efficiency, brightness and stability of the device.

The invention provides a single-particle nano crystal with three-primary-color luminescence and a preparation method thereof. The single-particle nano crystal has a core-shell structure and sequentially comprises an inner core, a first shell, a second shell, a third shell and a fourth shell from inside to outside, wherein the inner core, the second shell and the fourth shell are luminous shells, and the first shell and the third shell are inert shells. The three luminous shells separately contain Yb<3+>/Tm<3+>, Er<3+> or Nd<3+>/Yb<3+>/Er<3+> ions, and the luminescent shells respectively radiate red, green and blue lights under the action of a laser. According to the invention, shell stock solutions with different components are continuously and thermally injected by adopting a one-pot method, and compared with a conventional batch thermal injection method, the one-pot method has the advantages that the time required for synthesizing nano particles with a multilayer core-shell structureis greatly saved. Through constructing a ''core-multi-shell'' structure, concentration quenching and luminescence color crosstalk are inhibited, and high-efficiency pure-color three-primary-color luminescence is realized. The nano crystal has a real-time color adjustment capability in full color gamut, and the adjustment method is simple and convenient.

The invention relates to a mineralization guided tissue regeneration membrane and a preparation method and application thereof, wherein the mineralization guided tissue regeneration membrane comprises: a loose layer formed by compositing type I collagen and nano hydroxyapatite; a compact layer positioned on the loose layer and formed from type collagen. The double-layer mineralization guided tissue regeneration membrane is constructed herein, wherein the loose layer is consistent to autogenous bone in terms of composition, and the membrane may be attached to diseased oral bone defect surface to induce the generation of new bones; the surface of the compact layer is smooth, a diseased area may be isolated from surrounding tissues by making good use of physical barrier function of the membrane, regenerating capacity of a specific tissue is given to maximum play, and the prepared mineralization guided tissue regeneration membrane has high tensile strength and elasticity.

The invention relates to a molecular sieve film and a preparation method thereof, in particular to an aligned nano laminar AFI or CHA type molecular sieve film and an in-situ preparation method thereof based on layer-by-layer film coating and vapor-phase transfer. The molecular sieve film is composed of nano laminar AFI or CHA type molecular sieve crystals in aligned arrangement. The method comprises the following steps: successively coating two film-coating liquids on a glass sheet support, and then carrying out in-situ crystallization by vapor-phase transfer. The layer-by-layer film-coating preparation method does not need the introduction of crystal seeds or the aging of a synthesis liquid, has the advantages of convenient operation and high film-forming repeatability and can realize the industrial expanded production easily. By simultaneously combining vapor-phase transfer to carry out crystallization, the invention greatly reduces the preparation cost of the molecular sieve film and is beneficial to the cyclic utilization of the template agent.

The present invention discloses a phosphorus diffusion method of a crystalline silicon solar cell. The method comprises the steps of (1) entering into a boat, (2) adjusting temperature to be below 800 DEG C, introducing nitrogen carrying phosphorus source and dry oxygen, and forming a silicon dioxide layer containing phosphorus, (3) carrying out low temperature diffusion, (4) raising the temperature in a furnace and pushing with the rise of the temperature, (5) carrying out first time of high temperature diffusion, (6) raising the temperature in the furnace and pushing with the rise of the temperature, (7) carrying out second time of high temperature diffusion, (8) reducing the temperature in the furnace and pushing with the decrease of the temperature, and (9) reducing the temperature and going out of the boat, and completing a diffusion process. According to the method, an oxidation gettering effect is enhanced and the concentration gradient of the phosphorus doping is controlled, the separation and collection of carriers are facilitated, the open circuit voltage is raised, the temperature difference in a cooling process is controlled, and a crystal boundary gettering effect is enhanced.

An image forming apparatus that is capable of forming an appropriate image even on a special transfer sheet, such as a thick and rigid transfer sheet (e.g., a cardboard and an envelope) and a long transfer sheet, etc. In the image forming apparatus, when the thick and rigid transfer sheet is used, a transfer bias applied to first and second transfer devices is increased by about 10 to 30% compared to that applied when a normal transfer sheet is used, and a temperature of fixing rollers is increased by about 10 to 30% compared to that when the normal transfer sheet is used. When the long transfer sheet that is longer than a circumferential length of a second image bearing member is used, an image transfer onto the second image bearing member is prohibited. In addition, the temperature of the fixing rollers is increased by about 10 to 30% compared to that when the normal transfer sheet is used.

The invention relates to a method for producing sulfate radical free radicals to oxidize pollutants through in-situ electrocatalysis. The method comprises the steps: sulfate in wastewater is activatedin situ by an anode material with high oxygen evolution potential to generate persulfate radicals, the generated persulfate radicals are catalyzed into sulfate radical free radicals at a cathode material with electrocatalytic activity, pollutants in the wastewater are oxidized by the sulfate radical free radicals and the sulfate radical free radicals are converted into sulfate at the same time, the sulfate are activated at the anode material again, and the processes are repeated. Compared with the prior art, the method has the advantages that sulfate ions in the water body are used for generating the sulfate radical free radicals in situ to oxidize and remove the pollutants, oxidants (such as peroxymonosulfate and peroxydisulfate) do not need to be added, and the salt concentration of thewater body cannot be increased; the water pollution control technology is high in removal efficiency and small in secondary pollution, and has the characteristic of easiness in automation.

The invention relates to a dental prosthetic material for promoting dentin remineralization. The dental prosthetic material for promoting dentin remineralization contains a polypeptide solution and a nanometer amorphous calcium phosphate suspension which are successively applied to the surface of a dentin surface, wherein the polypeptide solution and the nanometer amorphous calcium phosphate suspension are physically isolated before use; the polypeptide solution contains polypeptide and water, wherein the polypeptide has functions of adsorbing calcium ions and binding to type I collagen, and the polypeptide has a concentration of 0.5 to 0. 8 mg/ml; the nanometer amorphous calcium phosphate suspension contains nanometer amorphous calcium phosphate and water, wherein the concentration of nanometer amorphous calcium phosphate is 0.2 to 0.3 g/ml. The parental function polypeptide is combined with the nanometer amorphous calcium phosphate to be used, and the nanometer amorphous calcium phosphate can effectively realize the in situ remineralization on the dentin, with high degree of mineralization and bionic degree by setting the appropriate concentration ratio.

The invention discloses a preparation method of crystal II-shaped branched chain ammonium polyphosphate, which comprises the following steps: selecting refined phosphoric acid as main raw material, as well as carbamide, trimeric cyanamide, melam, melem or a mixture thereof as a condensing agent; reacting for half an hour at the temperature of 150 to 320 DEG C; introducing ammonia; and obtaining the crystal II-shaped branched chain ammonium polyphosphate after the ammonia is aminated, cured, crystallized and crushed. The product the apparent viscosity which is greatly larger than that of the prior industrial product with the average polymerization degree up to 1000 and the thermal decomposition temperature which is larger than 300 DEG C, and can be used as a flame retardant with high efficiency, low mammalian toxicity and non-drip. The invention has the advantages of simplicity, good reliability and high accuracy rate.

A cloth bonding apparatus 1 includes a nozzle 45 through which an adhesive is dischargeable onto a cloth. A plate-shaped covering member 51 is positioned between the nozzle 45 and a worker, thereby preventing gas from directly flowing from the nozzle 45 toward a worker side. The covering member 51 includes first and second gas sensors 53, 54. A bed portion 11 includes a blower fan 56 that takes in air from the worker side through an opening 55 and blows the air through an opening 57 toward the nozzle 45. A CPU increases an output power of the blower fan 56, if at least one of gas concentrations detected by the first and second gas sensors 53, 54 is equal to or more than a predetermined value. Therefore, the cloth bonding apparatus 1 can efficiently remove the gas generated from the adhesive discharged from the nozzle 45.

The invention discloses a high-temperature loose coal-induced inflammable and explosive gas explosion coupling test apparatus and a method thereof. The apparatus comprises a coal reactor, a heating temperature control subsystem, a gas distribution subsystem, a data acquisition subsystem and a host computer. The method comprises the following steps: 1, charging experimental coal particles, and examining the air tightness of the coal reactor; 2, determining the vacuum state of a vacuum gas bottle; 3, carrying out high temperature heating and high temperature monitoring on loose coal; 4, proportioning high-temperature loose coal, and adjusting the pressure balance of the coal reactor; 5, acquiring and transmitting high-temperature loose coal-induced inflammable and explosive gas explosion coupling data; and 6, analyzing and storing the high-temperature loose coal-induced inflammable and explosive gas explosion coupling data. The apparatus and the method can be used to accurately test the mutual promotion relationship between the inflammable and explosive gas and the explosion of the high-temperature loose coal, can be reused to determine the evolution rules of all parameters under various conditions, and are of great significance to the prevention and control of mine coal fire thermo-motive disasters.

The invention provides an officinal composite containing zolpidem tartrate, and the weight of the active ingredients of the officinal composite is between 1mg and 20mg. The invention is characterized in that the officinal composite is a controlled-release pellet which mainly consists of a pill core and a controlled-release layer with a controlled-release function or consists of a faster-working quick-release outer layer part, a controlled-release layer maintaining slow release and a pill core. The preparation prepared by the invention can prolong drug release time by 6h and play roles in reducing blood concentration fluctuation and prolonging drug action time.

The invention relates to instant modified cellulose cross-linked clean fracturing fluid. The instant modified cellulose cross-linked clean fracturing fluid consists of the following components in parts by weight: 0.2-0.6 part of FAG-500 type modified cellulose, 0.1-0.5 part of FAZ-1 type tackifying initiator, 0.3-0.7 part of DL-16 type discharge aiding agent, 0.5-1.2 parts of FAJ-305 type cross-linking regulator, 0.2-0.7 part of FAC-201 type polar chelate type organic zirconium cross-linking agent, 0.002-0.07 part of NBA-102 type encapsulated gel breaker and 100 parts of water. The invention further provides a preparation method of the instant modified cellulose cross-linked clean fracturing fluid. The instant modified cellulose cross-linked clean fracturing fluid provided by the invention has performance better than that of a normal fracturing fluid system, has the advantages of being instant, temperature-resistant, shearing-resistant, easy in glue breaking, free of residue, and environment-friendly, can be used for the low-permeability oil gas filed, particularly in fracture mining of an easily-damaged storage layer.

The name of this invention is soluble dietary fiber of konjak, it belongs to soluble dietary fiber foods technology field. It mainly supports a soluble dietary fiber powder pouring boiling water for eating to give soluble dietary fiber of konjak function into full play, increas the scope of health function, strengthen the role of the cardiovascular system, and its health care action is superior to simple soluble dietary fiber of konjak. Its characteristic is that it is composed of the following materials according to the weight ratio: soluble dietary fiber of konjak 60 to 90; kudzu flavonoids 20 to 40; puerarin 20 to 40; california almond flour 10 to 30. The present invention has lipid-lowering, hypoglycemic, weight reduction and slimming thin, moistening the intestines and freeing the stool, poison eliminating and countenance preserving, lipid removing and blood cleaning, promoting enterogastric function etc. health care actions. The present invention is mainly used in soluble dietary fiber of konjak health food powder pouring boiling water for eating.

The invention relates to a spherical opposite-spraying type batched nanofiber yarn processing device and a using method thereof. The device comprises a body and a base. Crossed wedge grooves are formed in the middle of the base. The body is symmetrically arranged on the second wedge groove along the first wedge groove. The body comprises a liquid supply system, a separation electric field control system, a spherical brush type spinneret system, a nanofiber yarn forming system and a nanofiber yarn collecting system. The liquid supply system comprises an air cylinder, a spinning solution storage bottle, an oil bath groove and a liquid guiding pipe. The spinning solution storage bottle is arranged inside the oil bath groove. The spinning solution storage bottle, the liquid guiding pipe and a liquid brushing groove form a communicating vessel structure. The spinning solution storage bottle is connected with the air cylinder through an air pipe. A main valve and a pressure reduction valve are sequentially arranged at the portion, close to the air cylinder, of the air pipe. Due to the liquid supply system adopting the air pressure communicating vessel, automatic supply of a high polymer solution can be achieved, and the device is simple and easy to use, and convenient to operate.

The invention provides a drilling methane self-circulation blasting fracturing enhanced extraction method which is suitable for efficient extraction of coal mine underground gas. The method comprises the steps that firstly, a gas extraction drill hole, a blasting fracturing drill hole and a guide hole are constructed in a coal seam; then a gas extraction pipe and a gas injection pipe are placed into the gas extraction drill hole and the blasting fracturing drill hole correspondingly and sealed; extracted gas is premixed into mixed gas with the concentration being 9% to 10% through an extraction pump, a filtering device and a gas mixing chamber, and the mixed gas is injected into the blasting fracturing drill hole through the gas injection pipe after passing through a gas storage tank and a booster pump; an ignition device is started to induce methane blasting fracturing, high-temperature and high-pressure shock waves generated by blasting are guided to crack the coal seam to generate a directional fracture network, meanwhile, methane desorption is promoted through the high temperature, and the methane concentration of the gas extraction hole and the methane concentration of the blasting fracturing hole are both greatly increased; and finally, gas extraction is synchronously conducted on the gas extraction hole and the blasting fracturing hole. According to the method, the coal seam is utilized for in-situ methane desorption blasting to construct the three-dimensional fracture network, and the methane extraction efficiency can be remarkably improved.

The invention relates to a method for preparing calcium carbonate whiskers. The method comprises the following steps: preparing a sodium carbonate solution and a calcium chloride solution at a certain concentration, wherein the concentration of the calcium chloride solution is slightly more than that of the sodium carbonate solution; heating the sodium carbonate solution and keeping the temperature between 81 DEG C and 84 DEG C, adding an isopyknic calcium chloride solution into the sodium carbonate solution, stirring the solutions to prepare a mixed solution A and reacting until the pH value of the mixed solution is lower than 8.2, wherein the stirring speed is controlled between 80r/min (revolutions per minute) and 120r/min; and pumping carbon dioxide to the mixed solution A, adding sodium hydroxide particles, stirring the mixture to prepare a mixed solution B, carrying out stirring and maintaining the pH value of the mixed solution B between 8.2 and 8.5, wherein the temperature is continuously maintained between 81 DEG C and 84 DEG C; the stirring speed is controlled between 120r/min and 180r/min; and the reaction time is controlled between 20min and 100min. The method is simple, dispenses with excessive complex operations, is low in cost and can be used for overcoming the problems that the reactant concentration is too high and the acid reaction environment restricts preparation of the calcium carbonate whiskers and the like; and the prepared calcium carbonate whiskers have high length-diameter ratio, good smoothness and high purity.

The invention provides a GaAs tunnel junction and a preparation method thereof. Excellent tunneling performance and a high peak current are achieved, the requirement for a high-power optically-focused multi-junction battery can be well met, and photoelectric conversion efficiency of the battery is promoted. The GaAs tunnel junction comprises a barrier layer, a first doped layer and a second doped layer, wherein the barrier layer, the first doped layer and the second doped layer are arranged on the surface of a GaAs substrate in sequence, and the GaAs substrate, the barrier layer and the first doped layer have the same conduction type. The GaAs tunnel junction is characterized in that if the first doped layer is in an n type and the first adulterant is Te, the second doped layer is in a p type, and the second adulterant is Mg; if the first doped layer is in a p type and the first adulterant is Mg, the second doped layer is in an n type, and the second adulterant is Te.

The invention discloses a resourceful treatment system and process for high-concentration phenolic resin wastewater, and belongs to the technical field of industrial wastewater treatment. The device mainly comprises a wastewater temporary storage tank, a heat exchanger, a reactor, a flow buffer element, a gas-liquid separator, a recycled water temporary storage tank and an intelligent control element. The high-concentration phenolic resin wastewater enters the reactor after multi-stage heat exchange, organic matters in the wastewater can be decomposed and reformed to generate high-added-valueproducts such as CH4 in only 10-15 minutes under the action of the catalyst, the COD removal rate is up to 99.5% or above, and the CH4 yield is up to 98%. In conclusion, the new system and the new process for resourceful treatment of high-concentration phenolic resin wastewate have the advantages of good treatment effect, safety, reliability, high automation degree, energy and water conservation,high resourceful degree and the like, and have good industrial application prospects.

The invention relates to tiny algae cultivating field, especially the high density cultivating method of Tama Alexander algae. In the initial stages, static laying and mildness whisking would be adopted to make the carbon source and other alimentation in the culture medium proliferate for a period of time. Taking aerate after the cell density reaching a certain extent, thus, injure of cell would be avoid. The gas could have a certain ratio CO2 to supply carbon source that the algae cell needs for growing. And a certain PH value would be sustained. At the initial stages, suitable N, P consistence would be supplied to make the cell grow fast. And at the late stages, N, P should be added to relief the lack of N, P, and achieve high cell density.

The invention discloses a catalyst waste water zero discharge method and device. The problems are solved that concentrations of suspensions and ammonia nitrogen in catalyst waste water are high, the content of silicon dioxide fluctuates greatly and addition dosage is hard to control. The catalyst waste water zero discharge device comprises a primary settling unit, an adjusting unit, a silicon removal unit, an ammonia nitrogen processing unit, a softening unit, a filtering unit, a reverse osmosis unit and an evaporation crystallization unit. The beneficial effects are that the problems are solved effectively that the content of silicon dioxide in catalyst waste water fluctuates greatly and the addition dosage is hard to control; in addition, ammonia nitrogen in waste water is recovered, zero discharge of catalyst waste water and resource utilization are achieved, the whole system has a strong impact-resistant load capability, the technology steps are simple, and the problem of environment pollution of catalyst waste water is solved.