450results about How to "Increase concentration" patented technology

A method for manufacturing a field-effect transistor includes the steps of forming a source electrode and a drain electrode each containing hydrogen or deuterium; forming an oxide semiconductor layer in which the electrical resistance is decreased if hydrogen or deuterium is added; and, causing hydrogen or deuterium to diffuse from the source electrode and the drain electrode to the oxide semiconductor layer.

A self-healing cement system includes cement, water and at least one additive that swells in contact with water from reservoir or from formation in the case of a structural failure in the set cement to provide a physical barrier in the zone of failure. Examples of such material include particles of super-absorbent polymer. These additives have the effect of making the cement self-healing in the event of physical failure or damage such as micro-annuli. The self healing property is produced by the contact of the water itself, the potential repair mechanism is thus activated if and when needed in case of start of loss of zonal isolation. Several super-absorbent polymers have been identified such as polyacrylamide, modified crosslinked poly(meth)acrylate and non-solute acrylic polymers.

A photovoltaic (PV) laminate backplane assembly includes an insulative substrate and a metal foil bonded to the insulative substrate on a first surface and is electrically receptive for mounting a solar cell on a second surface opposite the first surface. The metal foil includes a light concentrator disposed at exposed regions on the second surface of the metal foil and is configured to reflect incident light thereon to the solar cell to increase a concentration of light on the solar cell in a range of about 1.5× to about 4×.

A preservative and flavoring system for tea based beverages. The system contains a tea extract, an antimicrobially active amount of cinnamic acid or an acidic derivative thereof and an acidulant in an amount that maintains the pH of the beverage below pH 4.5. The system preferably includes an additional preservative such as a weak acid preservative. It can be used to prepare an ambient-stable tea based beverage and is suitable for cold filling.

Compositions are provided, derived from chemical treatment of carbonaceous fiber felt forms or other carbonaceous substrates, that exhibit both high efficiency and capacity for mercury capture from flue gases and the like. These compositions are superior to known compositions, particularly with regard to their performance under severely deactivating conditions. The compositions result from the pyrolysis of certain specific sulfur bearing compounds while in contact with activated carbon powders, activated carbon fibers, or with other carbonized forms. Precursor compounds to these novel mercury-binding compositions contain structural moieties that may be represented as:

where X, Y are individual atoms or are functional groups consisting of several atoms, such that the atom bonding to sulfur is not hydrogen. X and Y can be linked in cyclic structures, either directly or through other atoms.

The invention discloses a universal white master batch and a preparation method thereof. The color master batch of the invention is characterized by high dispersion, impact resistance, high concentration and strong universality in different materials and consists the following components by weight percentage: 15 percent to 20 percent of carrier resin, 40 percent to 80 percent of pigment, 5 percent to 10 percent of dispersant, 0 percent to 5 percent of processing aid, 0 percent to 2 percent of heat stabilizer and 0 percent to 40 percent of filler. All the components are mixed according to proportion, premixed at low speed for 0 minute to 10 minutes in a mixer, then mixed at high speed for 5 minutes to 25 minutes; melt blending is carried out by adopting a screw extruder, with the temperature controlled between 190 DEG C to 220 DEG C and the screw rotational speed of 80r/min to 400r/min; by the shearing and mixing of the screw, the pigment is dispersed evenly in the carrier resin and the color master batch of the invention is obtained after granulation, drying and packaging. The preparation method of the color master batch of the invention is simple and economical and has a wide application prospect.

The invention relates to an ozone / photocatalysis oxidation-membrane separation integrated method for advanced wastewater treatment. First, an ozone / oxygen gas mixture is dissolved in the wastewater through a gas-liquid mixer to generate high-concentration dissolvable ozone and oxygen; the ozone and oxygen enter into a photocatalytic reactor and produce a large number of strong oxidizing agents such as hydroxyl radicals under the combined action of dual band ultraviolet (185nm + 254nm) radiation and a suspension nano TiO2 catalyst, and the strong oxidizing agents, dissolved oxygen and dissolved ozone cooperatively oxidize and remove removal toxic and harmful substances, odor smell, chroma, virus and bacteria in the water; and a three-phase fluid of wastewater, catalyst and gas passes through a ceramic membrane filter, the wastewater permeating through the ceramic membrane reaches the standard and is discharged, and the concentrated water with suspended catalyst failing to permeating through the ceramic membrane is returned to a backwater bin for further participation in the gas-liquid mixing and ozone / photocatalytic reaction. The process and device involved in the invention have the advantages of high wastewater treatment efficiency, high recovery rate of catalyst, high utilization efficiency of ozone and long service life of membrane.

There is disclosed a process for modifying fats and oils by an interesterification reaction to efficiently increase concentrations of the desired triglycerides. In the process, a step for subjecting a fat or oil to an interesterification reaction with a fatty acid or its lower alcohol ester in the presence of an enzyme catalyst and then a step for removing the fatty acid or its lower alcohol ester by distillation are repeated in multiple stages. The process is characterized by leaving the fat or oil and a feedstock fatty acid or its ester selectively in the distillation steps preceding the one in the final stage. According to this process, the amount of the fatty acid or its ester to be used can be reduced and the formation of by-products can be inhibited, thereby enabling to increase concentrations of the desired triglycerides more efficiently than conventional multistage interesterification processes.

We have developed an improved vapor-phase deposition method and apparatus for the application of organic films/coatings containing a variety of functional groups on substrates. Most substrates can be coated using the method of the invention. The substrate surface is halogenated using a vaporous halogen-containing compound, followed by a reaction with at least one organic molecule containing at least one nucleophilic functional group capable of reacting with a halogenated substrate surface. The halogenation of the substrate surface and the subsequent reaction with the organic molecule nucleophilic functional group are carried out in the same process chamber in a manner such that the halogenated substrate surface does not lose its functionality prior to reaction with the nucleophilic functional group(s) on the organic molecule. Typically the process chamber is operated under a pressure ranging from about 1 mTorr to about 10 Torr.

A terminal-crosslinkable polyamic acid oligomer having 1) heat resistance indicated by Tg of 300° C. or more and a pyrolysis temperature of 500° C. or more, 2) toughness, and 3) capability of allowing an increase in concentration. The polyamic acid oligomer is obtained by reacting an aromatic tetracarboxylic dianhydride including 2,2′,3,3′-biphenyltetracarboxylic dianhydride, an aromatic diamine compound, and a reactive crosslinking agent including an amino group or acid anhydride group and a crosslinkable group in the molecule, and includes a crosslinkable group at the molecular terminal.

The instant invention provides for proteins, polypeptides, nucleic acid sequences, constructs, expression vectors, host cells, pharmaceutical compositions of, and methods for using human placental bikunin, serine protease inhibitor domains, and fragments thereof

Universal tandem solid-phases based immunoassay (UTSIA) is a sandwich-ELISA equivalent assay for low abundance antigen determination that overcomes limitations of sandwich-ELISA (antibody inactivation by solid phase and strict requirement of a pair of primary and secondary antibodies) by using an affinity binding solid phase to capture antigen specifically from a fluid sample, sequentially dissociating the antigen, transferring, and coating the antigen to a non-affinity binding solid phase for specific antigen determination. Cell-based UTSIA is a cell-based ELISA equivalent assay that overcomes limitations of image method for determining an antigen in the cells or tissue immobilized on a solid phase by dissociating and transferring the detection antibody bound on the antigen of the cells or tissue immobilized on the solid phase to a second solid phase and immobilizing the detection antibody there for specific detection of the antigen via the detection of the detection antibody.

The invention belongs to the field of lignocellulose biomass pretreatment and application thereof, and particularly relates to a method for preparing a fermentation carbon source by hydrolysis and acidification of biomass raw materials and application thereof. In the conventional methods for biotransformation by using active sludge, the active sludge is directly adopted for anaerobic digestion, but the organic substance content of the active sludge is low, so the concentration of the acidified organic acid is too low, then the fermentation efficiency is low, and the organic acid is difficultly used as an effective carbon source. The domesticated active sludge is used as seed sludge in the method, and the method comprises the following steps of: mixing proper pretreated lignocellulose raw materials and the active sludge uniformly in a certain mass ratio in a reactor, regulating the solid-liquid ratio and the pH value by adding water, then introducing nitrogen into the reactor, performing anaerobic acidification, and separating the acidified solution to obtain the fermentation carbon source. The method can realize clean and efficient utilization of the lignocellulose raw materials, and has the advantages of high hydrolyzed and acidified organic acid concentration, short domestication time, reduction of production cost of the microbial fermentation carbon source and the like.

Novel prodrugs of amino ceramide-like compounds are provided which inhibit glucosyl ceramide (GlcCer) formation by inhibiting the enzyme GlcCer synthase, thereby lowering the level of glycosphingolipids. The compounds of the present invention have improved GlcCer synthase inhibition activity and are therefore highly useful in therapeutic methods for treating various conditions and diseases associated with altered glycosphingolipid levels.

A method for fabricating a field effect transistor with fin structure includes the following steps. A substrate having an ion well with a first conductivity type is provided, wherein the ion well has a first doping concentration. At least a fin structure disposed on the substrate is formed. At least a first ion implantation is performed to form an anti-punch doped region with first conductivity type between the substrate and the channel layer, wherein the anti-punch doped region has a third doping concentration higher than the first doping concentration. At least a channel layer disposed along at least one surface of the fin structure is formed after the first ion implantation is performed. A gate covering part of the fin structure is formed. A source and a drain disposed in the fin structure beside the gate are formed, wherein the source and the drain have a second conductivity type.

An improved method for treating lignocellulosic material, including a prehydrolysis-mass transfer process, which produces a concentrated hydrolysate volume during the time required for the hydrolysis itself. The improved process comprises the heating of the digester and chip content by direct steam to the required hydrolysis temperature, starting a flow of hot, stored hydrolysate to the top of the chip bed in order to create a trickle-bed type down-flow of hydrolysate, collecting a first fraction of the trickled-down hydrolysate as a product fraction, adding extraction liquid and continuing the trickle flow to collect a second hydrolysate fraction, which will be discharged from the digester to a hot hydrolysate storage tank to be used as the first trickle flow liquid in the next batch.

The invention relates to a clean fracturing fluid and the application thereof, and the fracturing fluid comprises the components based on the parts by mass: 50-80 parts of thickening agent, 10-35 parts of salicylate and 2-5 parts of gel breaker. The clean fracturing fluid is used for fracturing oil field; in the application site, the components are mixed according to the parts by mass to prepare aqueous solution with the mass percent of 2-6% and evenly stirred, and then is thrown into an oil well together fracturing propping agent. The fracturing propping agent of the clean fracturing fluid is even in dispersion and thorough in gelout.

The invention discloses a method for simultaneously preparing 1,3-propylene glycol and 2,3-butylene glycol from glycerol by using microbe employing prior-stage anaerobic and later-stage aerobic two-stage fermentation process, which belongs to the field of the bio-chemical engineering technology. In the fermentation process, the seed liquid is added in the primary fermentation medium containing industrial glycerol or glycerol fermentation liquid, after 3-5 hours, the mixed liquid of glycerol and glucose is added in the form of the flow. The product concentrations of 1,3-propylene glycol and 2,3-butylene glycol are controlled by adjusting the air flow in the two-stage fermentation process and controlling the fermentation temperature. When the fermentation process is over, 1,3-propylene glycol and 2,3-butylene glycol are separated and purified by desalting, distilling, and vacuum rectification. The preparing method can improve the fermentation concentration and the yield of 1,3-propylene glycol and the production intensity, at the same time, 2,3-butylene glycol with higher concentration can be obtained with high raw material availability and low cost.

It is an object to provide a method for manufacturing a semiconductor substrate in which contamination of a semiconductor layer due to an impurity is prevented and the bonding strength between a support substrate and the semiconductor layer can be increased. An oxide film containing first halogen is formed on a surface of a semiconductor substrate, and the semiconductor substrate is irradiated with ions of second halogen, whereby a separation layer is formed and the second halogen is contained in a semiconductor substrate. Then, heat treatment is performed in a state in which the semiconductor substrate and the support substrate are superposed with an insulating surface containing hydrogen interposed therebetween, whereby part of the semiconductor substrate is separated along the separation layer, so that a semiconductor layer containing the second halogen is provided over the support substrate.

A composition for the treatment of sensitive teeth comprising a suitable carrier and a desensitizing amount of: a) at least one tubule blocking agent preferably a combination of two such agents; and b) a nerve desensitizing agent selected from the group consisting of at least one potassium salt at least one strontium salt and mixtures thereof wherein the tubule blocking agent deposits or swells upon the dentinal surface and/or precipitates within the dentinal tubules retaining a higher concentration of the nerve desensitizing agent at the exposed dentinal surface and within the dentinal tubules The compositions may further contain a source of physiologically acceptable fluoride ion such as stannous fluoride Also disclosed are methods of using the subject compositions in the treatment of sensitive teeth.

The invention relates to a subcritical hydrothermal treatment-based efficient recycling treatment process for sludge. According to the treatment process, sludge with the solid content of 10 to 25 percent of a sewage treatment plant is placed into a hydrothermal reaction kettle for 5 to 30 minutes at the subcritical high temperature of 200 to 300 DEG C and under the high pressure of 1.6 to 8.6 MPa, so that intracellular substances in sludge are fully dissolved, solid organic matters are fully dissolved and hydrolyzed and are partially decomposed; the release of bound water and surface water in the sludge facilitates improvement on the dehydration performance of the sludge. The sludge which is subjected to hydrothermal modification is dehydrated to enable the solid content of the dehydrated sludge to be not higher than 60 percent, and then aerobic composting stabilizing treatment is performed. The filtrate which is rich in dissolved organic matters and is obtained by dehydrating the sludge enters a high-speed anaerobic digestion system for fully recovering methane. According to the technology, the hygienization, the recycling and the stabilization of the sludge are realized effectively; the subcritical/supercritical reaction speed is high, the subsequent efficient anaerobic digestion hydraulic retention time is short, and the solid residues generated after hydrothermal modification dehydration are few, so that large-scale urban sludge treatment capacity can be realized by adopting small-capacity reactors in a hydrothermal link, an anaerobic link and an aerobic link of the treatment process.

The invention discloses a method for preparation of high-activity titanium oxide sol with industrial metatitanic acid as raw material, which is characterized in that it contains sequentially the following steps: (1) adding alkali to wash out sulfate ion, (2) adding acid to peptize, (3) proceeding dispergation with (a), (b) or (c) mode; when preparing transient metal or rare-earth metal loading-type (doping) sol, firstly preparing quantitative transient metal salt or rare-earth salt solution and adding into the metatitanic acid slurry without washing with alkali, then filtering and washing out to no sulfate ion; and when preparing noble metal-doping sol, adding noble-metal salt solution into the prepared pure sol, and placing under the irradiation of ultraviolet light for 0.5-10 hours and mixing at the same time. The merit of the invention is characterized in that: the raw material is cheap, the pollution is little, the dispersion degree and crystallization degree of prepared sol is good, and the visible light activity is highly improved by doping technique; and the sol property is improved by the microwave and supersonic after-treatment technique. The grain diameter of sol is very small, belonging to nanometer material.

The invention relates to a clothes disinfection cabinet. Wherein, it is characterized in that: the base has circulate gas pump, whose input is connected to sealed chamber and another end is connected to ozone generator; when in application, the gas of sealed chamber via circulate gas pump enters into ozone generator, to generate ozone gas to be fed into chamber via tube, to disinfect the clothes and materials; via switching electromagnetic valve, the gas pump can vacuum, and the ozone can be decomposed and discharged. The invention has simple operation without pollution.

An automated solution maker is provided. The automated solution maker mixes a chemical with a solvent to a desired concentration. The concentration of the solution is monitored by measuring the conductivity of the solution. Based upon this measurement, the concentration of the solution may be adjusted.

A method for removing ionic species from a desalination unit, comprises: (a) circulating a wash stream in a closed loop comprising a desalination unit and a precipitation unit, the wash stream flowing at a linear velocity of at least 5 cm/second through the desalination unit, the wash stream becoming more saline after passage through the desalination unit; and (b) removing a portion of calcium sulfate from the wash stream by precipitation in the precipitation unit to obtain a supersaturation degree of calcium sulfate in the wash stream entering the desalination unit in a range of from about 1.0 to about 3.0.

The invention discloses a high-quality inorganic perovskite film, a preparation method thereof and an application of the high-quality inorganic perovskite film as an absorbing layer to solar cells. A good solvent of an inorganic perovskite precursor and a mixed solvent of an organic solvent with volatility slower than that of the good solvent and capacity of increasing solubility of the precursor are introduced in the preparation process of the high-quality inorganic perovskite film; the uniform, dense and continuous inorganic perovskite film can be obtained by adjusting a ratio of the two solvents according to the characteristics that the mixed solvent is slower to volatilize and can increase the solubility of the precursor, the concentration of an inorganic perovskite material precursor solution can be remarkably increased by the mixed solvent, and the short-circuit current density of the inorganic perovskite solar cells prepared from the inorganic perovskite film is increased. The preparation method has the advantages of adopting mild preparation conditions and simple preparation steps, being convenient to operate, low in cost, low in energy consumption and the like, and the preparation method is suitable for industrial production.

Provided is a polymerizable quantum dot. The surface of the quantum dot is modified with ligands, and at least one part of the ligands comprise polymerizable groups which can be subjected to copolymerization with other monomers or prepolymers. According to the polymerizable quantum dot, more quantum dots can be dissolved in a high polymer material, the concentration of the quantum dots in the high polymer material can be increased, a better optical property is achieved, and application of the quantum dots is promoted. The invention further provides a quantum dot dispersoid, a quantum dot packaging body, a backlight module, a lighting device and a preparation method of the quantum dot packaging body.

The invention relates to a method for producing D-lactic acid and the special bacterial strain, in particular to a method for producing D-lactic acid and the special Sporolactobacillus. The Sporolactobacillus of the invention is Sporolactobacillus inulinus CASD and the preserved number is CGMCC NO2185. The method for producing D-lactic acid utilizes Sporolactobacillus inulinus CASD CGMCC NO2185 to produce D-lactic acid by fermenting hemicontinuously. The concentration of the D-lactic acid obtained by the invention can reach 162 g/L, the percent conversion can reach 94.7 to 96.0 percent and the optical purity can reach above 98.0 percent, further, the optical purity can still keep 98 percent after circular fermentation repeatedly and the pollution of impurity can be avoided. The invention has the advantages of enabling to be used for producing D-lactic acid, saving the cost, improving productivity efficiency, therefore being suitable for application in manufacturing production.

The invention provides a surface treatment method of metal oxide semiconductor and a preparation method of a thin film transistor, wherein the surface treatment method of the metal oxide comprises the following steps that: plasmas are utilized for carrying out surface treatment on a device to be treated; and the plasmas comprise mixed gas of F-base gas and O2, and the device to be treated is a metal oxide semiconductor product or a product plated with the metal oxide semiconductor. In the embodiment provided by the invention, the plasmas obtained by using the mixed gas of F base gas and O2 are used for treating the metal oxide for enhancing the oxygen vacancy concentration in the metal oxide, reducing the contact resistance between the metal oxide and other electrodes and improving the ohm contact effect of the metal oxide.

An alcohol fermentation process and composition that includes production of alcohol esters by esterification of product alcohol in a fermentation medium with a carboxylic acid (e.g., fatty acid) and a catalyst (e.g., lipase) capable of esterifying the product alcohol, such as butanol, with the carboxylic acid to form the alcohol esters. The alcohol esters can be extracted from the fermentation medium, and the product alcohol recovered from the alcohol esters. The carboxylic acid can also serve as an extractant for removal of the alcohol esters from the fermentation medium.