69results about How to "Low preparation cost" patented technology

The present invention relates to a vegetable soft capsule composition not comprising chemical metal salts and, more particularly, to a vegetable soft capsule composition which comprises only 6 wt % or less of iota-carrageenan, which is an expensive vegetable gelling agent, such that, even without using chemical metal salts such as sodium salts or potassium salts, a capsule has no disintegration problem and a soft capsule can be adhered only by means of pressure and not heating. According to the present invention, preparation cost for a soft capsule is reduced by minimizing the amount of carrageenan, which is 10-20 times more expensive than starch (starch or modified starch), sodium (salts), which are a chemically synthesized product that causes adult diseases such as hypertension and heart diseases, are not used, and heat is not applied during adhesion (sealing), thereby preventing heat denaturation of active ingredients contained in the contents of the soft capsule.

The invention provides a method for preparing a titanium dioxide nano tip array film for field emission, mainly comprising the following steps of: firstly, performing primary anodic oxidation on a swing-cleaned titanium sheet, and then removing the titanium dioxide nano-tube film attached to the titanium sheet through ultrasound; and next, loading the titanium sheet into the electrode again and performing secondary anodic oxidation, and then taking out the titanium sheet for cleaning through swinging to finally obtain the titanium dioxide nano tip array film. The method provided by the invention realizes the preparation of the titanium dioxide nano tip array film suitable for field emission. Compared with the traditional microelectronic field emission tip array, the method provided by the invention is simple, and preparation parameters are easy to control; and the tip of the array is sharp, which is advantageous for gaining field emission. Furthermore, the titanium dioxide nano tip array film annealed at high temperature previously has lower opening and threshold field intensity; and particularly, the sample annealed at 450 DEG C has the minimum opening and threshold field intensity and is obviously improved in field emission performance.

The present invention provides a process for producing a tea extract, which comprises adding a protease, a tannase and an enzyme preparation having a polygalacturonase activity of 20000 U / g or more to a tea raw material and extracting the desired tea extract from the mixture. According to this process, a tea-leaf-derived cell wall component that cannot be decomposed or extracted by conventional enzymatic tea leaf extraction techniques can be extracted, and a protein of which the extraction becomes possible through the success of the decomposition of the cell wall component can be further decomposed into an amino acid. As a result, it becomes possible to produce a tea extract which contains an amino acid in abundance and is rich in sweet flavor, robust flavor and "umami" (tasty) flavor in high yield.

A three-dimensional exercise device for a simulator achieves three-dimensional motion with a simple structure, improves stability and safety and prevents random rotary motion due to external force. The three-dimensional exercise device can be effectively applied to a chair for a three-dimensional movie theater. The three-dimensional exercise device comprises a motion base, a plurality of actuators, a slip prevention device, and a controller. The motion base is arranged in a position spaced from an installation surface. The plurality of actuators is installed between the motion base and installation surface and induces three-dimensional motion of the motion base. The slip prevention device is installed between the motion base and installation surface and restrains the degree of freedom of the motion base. The controller controls the actuator.

The present invention relates to a method for preparing a polyimide using water as a dispersion medium for reaction and, more particularly, to a method for preparing a polyimide by dispersing a dianhydride compound and a diamine compound in water and reacting the compounds in a pressurized state within a sealed pressure vessel under temperature conditions of 5 degrees or above. The present invention also provides a method for recovering water by discharging vapor generated during the preparation of the polyamide and cooling and condensing the vapor. By using water as a dispersion medium, the method according the present invention does not generate organic-based waste fluid and is thus environmentally-friendly, reduces production costs, minimizes residual solvents after drying and thus does not have a problem that physical properties are degraded due to the residual solvents, and is advantageous in that the reaction temperature is lower, reaction steps are reduced, and the reaction time is shortened compared to conventional methods. Since water can be recovered after the reaction is completed, the method also allows recycling of water and is thus economical and very environmentally-friendly. In addition, the polyimide prepared by the method according to the present invention has the advantage of increasing thermal stability and molecular weight compared to polyimides prepared by conventional synthesis methods.

The present invention provides a method for preparing a carbon nanotube film which can be wet-etched. The method for preparing a carbon nanotube film, according to the present invention, comprises the steps of: forming a base binder layer including a material which can be wet-etched, on a substrate; forming a CNT coating layer including carbon nanotube, on the upper surface of the base binder layer; forming a top binder layer including a material which can be wet-etched, on the upper surface of the CNT coating layer; and removing the regions to be etched of the CNT coating layer, the top binder layer, and the base binder layer through wet-etching.

The invention relates to a nanowire semiconductor gas sensitive material based on a GaN-Ga2O3 core-shell structure, belonging to the technical field of electron gas sensitive devices. The nanowire semiconductor gas sensitive material is characterized in that the surface layer of a GaN nanowire with diameter of 50-500nm is oxidized at high temperature into a layer of Ga2O3 with the thickness of 5-20nm, so that a nanowire semiconductor gas sensitive material with the GaN-Ga2O3 core-shell structure is obtained, and the nanowire semiconductor gas sensitive material with the GaN-Ga2O3 core-shell structure can be used for detecting gases with harmful neuron, such as oxygen, heavy hydrogen, hydrogen sulfurous gas, nitric oxide, various hydrocarbon gases and ammonia. The nanowire semiconductor gas sensitive material has the beneficial effects that the size of a carrier nanowire is easy to manufacture, the thickness of the Ga2O3 sensitive material obtained through oxidation is 5-20nm, which approximates to the size of a debye depletion layer, so that response of high sensitivity to the gas is obtained, the problem of direction preparation of Ga2O3 nanowire with diameter of 5-20nm is solved, the preparation cost is further lowered, and the cost is saved.

The invention discloses a Fe-doped Nb2Ox nano porous material with an oxygen deficiency structure. The specific surface area of the material is 30m<2> / g to 70m<2> / g, the aperture is not less than 5nm, and the distance between two adjacent holes is not less than 3nm; x in the Fe-doped Nb2Ox nano porous material with the oxygen deficiency structure is more than or equal to 4 and less than 5, and the content of Fe is 0.5 to 3 percent of the total weight of the Fe and Nb. In addition, the invention also discloses a preparation method and application of the material. The Fe-doped Nb2Ox nano porous material with the oxygen deficiency structure is excellent in optical performance, strong in ultraviolet and visible light absorption capacity and applicable to the fields such as a gas sensor, a catalyst, and a dye sensitized solar battery. The reversible capacitance of an electrode prepared by the material is 190 to 210 mA.h.g<-1> after being cycled for 500 times and about 93 to 96 percent of that of the electrode in the primary running.

The invention relates to a wastewater biochemical treatment activated sludge conditioner and a preparation method thereof. The wastewater biochemical treatment activated sludge conditioner is prepared from the following raw materials: molasses, a nitrogen source, ammonium sulphate, magnesium sulfate heptahydrate, saccharomycete fluid, glucanase, protease, poly-ferric aluminium sulphate and water. The preparation method of the wastewater biochemical treatment activated sludge conditioner comprises the following steps: firstly fermenting by utilizing the nutrient substances, culturing saccharomycetes in the saccharomycete fluid, then digesting by virtue of the glucanase and protease, and adding poly-ferric aluminium sulphate, so that the wastewater biochemical treatment activated sludge conditioner is obtained. The prepared wastewater biochemical treatment activated sludge conditioner has the advantages that proliferation of microorganisms in activated sludge can be quickly stimulated, and activated sludge treatment efficiency is improved; an impacted or filamentously expanded biochemical system can restore 7-15 earlier if the conditioner is used, effluent parameters are obviously better than those of a biochemical system without the conditioner, and usage amount of the conditioner is low, cost is low, and microorganism growth can be obviously promoted.

The invention discloses a catalyst for hydrogen production from steam reforming of methanol. The catalyst is composed of Cu and ZrO2. ZrO2 is enriched on surface of the catalyst and dispersed in a copper component, wherein the mole percentage of Cu is 69.6-88.9%; the mole percentage of ZrO2 is 11.1-30.4%. The invention also provides a preparation method of the catalyst for hydrogen production from steam reforming of methanol. A cupric nitrate solution and a sodium carbonate solution are parallelly and dropwise added for precipitation, a zirconium oxychloride solution and a sodium carbonate solution are parallelly and dropwise added for precipitation, and the catalyst for hydrogen production from steam reforming of methanol is obtained. After the prepared catalyst for hydrogen production from steam reforming of methanol is activated by H2 / He gas, high catalytic activity and stability of the catalyst are shown, and the content of by-product CO is lower than 0.3%.

The invention relates to the field of medical appliances, particularly a collecting device for collecting the body fluid. The fluid extractor for closed body fluid retention devices comprises an annular side wall and a channel assembly, wherein the annular side wall forms a channel; the channel assembly is arranged in the channel and positioned on the lower part of the channel; the channel assembly and annular side wall form a split fit; the channel assembly is provided with a through hole; the upper part of the channel is used for collecting the fluid; and the lower part of the channel is matched and connected with the channel assembly. The fluid extractor is capable of lowering the cost and enhancing the production efficiency; and when the excess fluid is poured out of the fluid extractor, the fluid in the test tube can be prevented from being poured out from the diversion channel or exhaust channel.

A layered oxide material, a preparation method, an electrode, a secondary battery and use are disclosed. The layered oxide material has a general chemical formula NaxCuiFejMnkMyO2+β, in which M is an element that is doped for replacing the transition metals; x, y, i, j, k, and β are respectively the molar ratios of respective elements, provided that x, y, i, j, k, and β satisfy the relations: y+i++j+k=1, and x+my+2i+3j+4k=2(2+β), where 0.8≦x≦1, 0<i≦0.3, 0<j≦0.5, 0<k≦0.5, 0.02≦β≦0.02, and m is the valence of M. The layered oxide material has a space group of R3m.

The invention discloses a bimetallic composite wire cross section transmission sample preparation method, which comprises the following steps: cutting double metal wires along the direction perpendicular to drawing direction into 0.5mm circular slices; using waterproof abrasive paper for grinding the circular slices, and mechanically polishing the circular slices to mirror surface; in order to ensure the normal ion thinning, sticking a slice sample with a copper layer to a molybdenum ring with the diameter Phi of 3mm; putting the TEM sample with a pitted interface on a Gatan691 ion thinning apparatus for final processing; and using a Single ion gun mode for r thinning processing, and adjusting the angle of an ion gun. The bimetallic composite wire cross section transmission sample preparation method has the advantages of simple overall technology, mature equipment and technology, great reducing of cost of test sample preparation, and reducing of dependence on imported equipment, and the obtained sample has no pollution and no deformation, and has strong practicability.

The invention relates to a preparation method of a sewage purification treatment material and a device thereof. The method comprises the steps of feeding powdered coke with small particle size into the device, and heating. The device comprises a roller positioned inside a heating chamber; one end of the roller is connected with a discharge pipe via a conical end; the other end of the roller is connected with a feed pipe; a plurality of rows of material turning over plates and material guide plates are fixed on the inner wall of the roller, each row of the material turning over plates and material guide plates are composed of a plurality of material turning over plates and a plurality of material guide plates that are alternately installed, and expansion gaps are arranged among the material turning over plates and material guide plates in the same row; spaces are left between every two rows of the turning over plates and material guide plates; each material guide plate is a triangular component composed of a flat surface and an inclined surface, the flat surface is arranged flush with the material turning over plates, and the tip ends of the material guide plates face the discharge pipe; a space is left between the middle part of the each material turning over plate and the inner wall of the roller; the discharge pipe is hermetically connected with a discharge chamber, and a vapor inlet port is arranged on the discharge chamber; the feed pipe is hermetically connected with a gas collection chamber; and a driving device is connected with the external part of the discharge pipe to drive the roller to rotate.

Disclosed is a method of manufacturing a composite anode material for a lithium secondary battery containing nano-sized silicon and a carbonaceous material through a single process, the method including mixing a carbonaceous material and solid silicon and performing carbothermal shock for rapidly heating the carbonaceous material so that the solid silicon is melted using the heated carbonaceous material and is dispersed and attached in the form of particles to the surface of the carbonaceous material, the size of the silicon particles, which grow on the surface of the carbonaceous material, being adjusted during the carbothermal shock. Accordingly, processing costs can be lower than conventional methods of manufacturing silicon nanoparticles, and manufacturing costs can be further reducedby simultaneously performing formation of the silicon nanoparticles and compounding with the carbonaceous material.

The invention belongs to the field of bioengineering, and discloses an agaricus bisporus protoplast and a preparation method thereof. The preparation method comprises the following steps of: pretreating agaricus bisporus hyphae of which the cell ages are 6-9 days with a permeation pressure stabilizing agent prepared by mixing 0.6 mol / L of KCl and 0.6 mol / L of mannitol in the volume ratio of 1:1; performing enzymolysis by using a mixed enzyme solution containing 7.6 percent by mass of cellulase and 4 percent by mass of helicase at the temperature of 28-30 DEG C for 2-3 hours; and centrifugally separating to obtain the agaricus bisporus protoplast, wherein the release quantity of the protoplast is 9.9*106 / mL, and the regeneration rate in a regeneration culture medium is up to 2.11 percent. Cellulase and helicase are taken as a mixed enzyme system of which the price is lower than single lywallzyme by over a half, the preparation cost of the agaricus bisporus protoplast in scientific research is reduced, and a foundation is laid for agaricus bisporus breeding with a protoplast technology.

A vessel cap comprises a body mounted at a vessel inlet through which a liquid material stored in a vessel is discharged outwardly and having a certain space therein, a pressing plate disposed in the body to be movable in upperand lower directions, a cutter formed at an edge of a lower surface of the pressing plate in a circumferential direction for penetrating a sealing member when the pressing plate is pressed and cutting the sealing member when the body is rotated, a hooking member downwardly protruding at the lower surface of the pressing plate for storing the sealing member cut by the cutter in the body, and a connection portion formed between an outer circumferential surface of the pressing plate and an inner circumferential surface of the body for guiding the pressing plate to be moved in upper and lower directions. When the vessel cap is opened, the sealing member is automatically removed by a sealing member removing unit integrally formed at the vessel cap. Accordingly, a user's convenience is enhanced without additionally removing the sealing member. Furthermore, the vessel cap is manufactured by a single molding thereby to reduce a production cost.

The invention discloses a method for preparing a pitcher plant imitated super-lubricative surface by using a flame spraying technology. A nano ceramic coating is constructed on the surface of a substrate by using a flame spraying technology, and then the nano ceramic coating is sequentially modified by a low-surface-energy substance and covered with lubricating oil to obtain the pitcher plant imitated super-lubricative surface. The invention provides a method for preparing a pitcher plant imitated super-lubricative surface, which is convenient and simple, has good repeatability and is suitablefor large-area preparation and industrial application. The prepared pitcher plant imitated super-lubricative surface can effectively prevent the existence of water drops on the surface of a material.

The invention discloses a black titanium dioxide catalytic ozonation catalyst which is prepared by calcining under an oxygen deficient condition. Compared with commercial titanium dioxide, the catalyst is calcined under the oxygen deficient condition, so that the catalyst has relatively more black oxygen vacancies. The hydroxyl adsorption is facilitated by the oxygen vacancies; hydroxyl on the oxygen vacancies is good for recombination of ozone to generate free radicals capable of directly oxidizing NO into nitric acid, so that the conversion rate of the NO in catalytic ozonation denitration is improved; the NO has low water solubility so that alkali is not easy to absorb. By adopting the black titanium dioxide catalytic ozonation catalyst disclosed by the invention, the problems in a catalytic ozonation denitration process that the consumption amount of the ozone is too great and the operation cost is high are solved; the black titanium dioxide catalytic ozonation catalyst is suitablefor middle-size and small-size coal-fired boilers in catalytic ozonation treatment.

The invention discloses a high-conductivity film phase change material for a thermal battery in the technical field of thermal batteries. Raw materials comprise: a soluble inorganic salt, a conductiveagent and an adhesive, wherein the soluble inorganic salt comprises at least two of NaCl, Na2SO4, Na2CO3, KCl, K2SO4, K2CO3, LiCl, Li2SO4, Li2CO3, MgCl2 and MgSO4, and the conductive agent comprisesone of expanded graphite, carbon nanotubes, graphene and activated carbon. The preparation method comprises the following steps: dissolving the easily soluble inorganic salt in water by using the principle that the easily soluble inorganic salt is soluble in water, fully stirring and mixing the components, mixing the conductive agent and the soluble inorganic salt together by using the adhesive toform slurry, and coating the slurry to form the thin film phase change material. Firstly, phase change is utilized to slow down thermal shock and prolong the working time of the electrolyte; secondly, the conductive agent plays a conductive role, electrons can be transmitted through the high-conductivity thin film phase change material, and then the service life of the thermal battery is prolonged.

The invention discloses a preparation method of a CuBiMgSi catalyst for synthesizing butynediol and belongs to the technical field of catalyst preparation. The catalyst is a complex of oxides of Cu, Bi, Si and Mg and is prepared by using a step-by-step precipitation method. The catalyst disclosed by the invention is used for an ethynylation reaction of formaldehyde and acetylene to synthesize 1,4-butanediol, is high in catalytic activity and high stability and leads to a formaldehyde conversion ratio of 97.5% or above, a 1,4-butanediol selectivity of 98.9% or above and a 1,4-butanediol yield of 96.5%.

The invention relates to a medical device, and especially relates to a device used for collecting a body fluid. The device is a fluid sampling member for a closed body fluid storage device, and comprises an annular sidewall A and an annular sidewall B; a flow guiding channel is formed by the annular sidewall A, and an air discharge channel is formed by the annular sidewall B; the upper portion of the annular sidewall B is not connected with the annular sidewall A, the minimum sectional area of the flow guiding channel is more than or equal to 3 mm<2> and less than or equal to 15 mm<2>; and the minimum sectional area of the air discharge channel is more than or equal to 3 mm<2> and less than or equal to 15 mm<2>. The device has the advantages of simplicity in processing, production cost reduction, high production efficiency, and prevention of backflow.

The invention relates to a traditional Chinese medicine composition for treating chronic gastritis and gastric precancerous lesions. The traditional Chinese medicine composition is prepared from the raw materials: cablin potchouli herb, coptidis rhizoma, bran-stir-fried macrocephalae rhizoma, fructus amomi rotundus, scutellariae barbatae herba, herba hedyotidis, angelicae sinensis radix, chuanxiong rhizoma, notoginseng radix et rhizoma, poria, stir-fried radix paeoniae alba, bulbus oculi, bran-stir-fried aurantii fructus immaturus, prepared cyperus rotundus, aucklandiae radix, fructus amomi, scorpio and prepared corydalis rhizoma. The composition is prepared into pharmaceutically acceptable dosage forms by being added with pharmaceutically conventional auxiliary materials according to a pharmaceutically conventional process. The traditional Chinese medicine composition has a definite curative effect on chronic gastritis, chronic atrophic gastritis and gastric precancerous lesions (suchas intestinal metaplasia and intraepithelial neoplasia) in clinical symptoms, histopathology and molecular level, and is convenient to take, carry and store and low in cost.