45results about How to "Small batch variance" patented technology

The invention discloses a method for preparing super-microporous flexible carbon cloth.Carbon cloth serves as a raw material and is calcined at high temperature in activators, and the super-microporous flexible carbon cloth is obtained.The calcination temperature is 400-1,500 DEG C, and calcination time is 1-24 h.The activators are nitrogen and oxygen, and the volume ratio of nitrogen to oxygen is 100:(0.5-2).The invention further discloses the super-microporous flexible carbon cloth and application of the super-microporous flexible carbon cloth to a flexible all-solid-state capacitor and water electrolysis hydrogen making.According to the technical scheme, a calcination method is utilized for the first time, no reagent is needed, and the synthesis method is simple, environmentally friendly and beneficial for large-scale production; the prepared super-microporous flexible carbon cloth has a large specific area, high-proportion micropores, good electric conductivity and good flexibility and super hydrophilicity.

A preparing method of N,S-codoped graphene/MoSe2/CoFe-LDH aerogel is provided. The method is characterized by including S1) separately preparing a graphene oxide sheet dispersion, a MoSe2 nanosheet dispersion and a layered CoFe-LDH nanosheet dispersion; S2) mixing the graphene oxide sheet dispersion and the MoSe2 nanosheet dispersion, adding a reductant and a crosslinking agent, fully mixing the mixture, reacting the mixture to obtain N,S-codoped graphene/MoSe2 hydrogel, freeze-drying the hydrogel to obtain N,S-codoped graphene/MoSe2 aerogel; and S3) soaking the N,S-codoped graphene/MoSe2 aerogel in the layered CoFe-LDH nanosheet dispersion to obtain N,S-codoped graphene/MoSe2/CoFe-LDH hydrogel, and freeze-drying the hydrogel to obtain the N,S-codoped graphene/MoSe2/CoFe-LDH aerogel. The prepared ternary N,S-codoped graphene/MoSe2/CoFe-LDH aerogel has more excellent hydrogen evolution and oxygen evolution properties under alkaline conditions.

The invention discloses a preparation method and application of a functional carbon nanotube loaded Pd catalyst. The preparation method comprises the following steps: carrying out in-situ introductionof carbon quantum dots through low temperature pyrolysis of citric acid and carrying out surface modification on carbon nanotubes; meanwhile, introducing nitrogen elements for co-modification; in addition, preparing a carbon-based catalyst with a metallic state Pd content as high as 76 percent by adopting simple processes such as equal-volume impregnation and hydrogen reduction. The catalyst hasobvious catalytic oxidation activity on benzyl alcohol (and derivatives thereof) and fatty alcohols; besides, the performance can be optimized by regulating synthesis conditions, so that the catalyticoxidation conversion rate of the benzyl alcohol can reach 92 percent.

The invention discloses a preparation method of a phosphorus-doped cobalt telluride nano material, which comprises the following steps: preparing cobalt hydroxide by using cobalt nitrate and urea as raw materials through a hydrothermal method, calcining to obtain Co3O4 nanosheets, grinding and mixing the Co3O4 nanosheets and tellurium powder, and calcining in an Ar atmosphere to obtain CoTe2 nanosheets; and finally, grinding and mixing the CoTe2 nanosheets and sodium hypophosphite, and calcining in Ar gas to obtain the phosphorus-doped CoTe2 nanoparticle material. According to the invention, phosphorus is doped, so electron cloud density of surrounding CoTe2 is changed, and favorable synergistic effect is generated to improve HER activity; the prepared P-CoTe2 nano-particle is of a porousstructure, is high in specific surface area and high in electrical conductivity, has stable and efficient catalytic hydrogen evolution performance in acidic and alkaline environments, and can be usedas an electrocatalyst for hydrogen evolution reaction by hydrolysis.

The invention belongs to the field of metal materials and particularly relates to an Al-P intermediate alloy which is used to refine primary crystal silicon in the Al-Si alloy and Mg2Si in the Mg-Si alloy, and a preparation method thereof. The Al-P intermediate alloy contains two elements, namely Al and P. The Al-P intermediate alloy is characterized in that the alloy comprises the following components by weight percent: 92.5-98.5% of Al, 1.5-7.5% of P and less than 0.8% of impurities. The preparation method of the Al-P intermediate alloy comprises the following steps of: mixing aluminum powder and black phosphorus powder evenly, drying, briquetting with a press machine, placing the obtained blocks in an electric furnace with the inert atmosphere or other heating devices, heating to 600-750 DEG C, keeping the temperature for 45-120 minutes, stopping heating, and cooling along with the furnace to obtain the blocky Al-P intermediate alloy or extruding the sintered blocks into wires. The Al-P intermediate alloy has a good refinement effect on the Al-Si alloy and the Mg-Si alloy.

The invention provides a making technology of low-salt flavored fermented bean curd, and relates to the technical field of food processing. The making technology comprises the following steps of pretreating raw materials; performing grinding to obtain pulp, and cooking the pulp; making semi-finished products; performing inoculation with bacteria and performing fermentation; rubbing hair and performing pickling; and performing later-stage fermentation. Through the adoption of the making technology, the amount of pickling salt is reduced; and vacuum pickling is adopted, so that on one hand, permeation of the salt can be well promoted, and on the other hand, the situations that bacteria are increased and the low-salt flavored fermented bean curd is putrid and deteriorated due to reduction ofsalt content can be avoided. Mucor and rhizopus oligosporus are mixed to be made into yeast, and two kinds of strain systems are relatively stable. In the later-stage fermentation process, an antioxidant and a flavoring agent are added. The made fermented bean curd is low in salt content, unique in flavor and fragrant and rich in taste, and has health-care effects; and besides, formation of whitespots is reduced, and taste of the fermented bean curd is improved.

The invention provides a preparation method of low-salt fermented bean curd, and belongs to the technical field of food processing. The preparation method comprises following steps: raw material pretreatment, pulp grinding, pulp cooking, soy cheese pehtze preparation, inoculation and fermentation, pressing of hypha and salting, and later fermentation. The preparation method is capable of reducingsalt using amount in the step of salting, and vacuum salting is adopted, so that on one hand, penetration of salt is promoted, and on the other hand, increasing of bacteria and corruption deterioration caused by low salt content are avoided. According to the preparation method, mucor and rhizopus oligosporus are mixed for starter propagation, and the two mould systems are relatively stable; an anti-oxidant is added in later fermentation. The obtained low-salt fermented bean curd is low in salt content, the whole taste of the low-salt fermented bean curd is not influenced, formation of white spots is reduced, and fermented bean curd taste is improved.

The invention provides a method for visually representing an electrolyte seepage effect. The method comprises the following steps of providing an electrolyte and a coloring agent; mixing the electrolyte and the coloring agent to form a coloring electrolyte, wherein the volume ratio of the electrolyte to the coloring agent is (60-100) to 1; and filling the electrolyte into a battery, then disassembling the battery, and observing the color distribution and the reflective degree of a separator and a negative electrode plate so as to determine the electrolyte seepage effect.

The invention discloses a reversible temperature change erasable neutral ink composition and its manufacturing method. The composition comprises the following components by weight: (a) 30-50 parts of a reversible temperature change pigment; (b) 2-5 parts of a shear thinning viscosity conditioning agent; (c) 0-5 parts of a viscosity stabilizer; (d) 5-20 parts of a moisturizing wetting agent; (e) 0.05-0.5 part of an antiseptic antimildew agent; and (f) 14.5-72.95 parts of deionized water. The total weight of the components (a)-(f) accounts for 95-100% of the total weight of the composition. The neutral ink provided in the invention has excellent writing performance, instantaneous erasability, long time erasability as well as excellent rewriting performance.

The invention relates to a method for producing oxytetracycline calcium premix by streptomyces rimosus fermentation, and belongs to the technical field of veterinary drug. In the method, the technicalconditions of a seed preparation process are optimized, so that the prepared seed has the characteristics of stable metabolism, small batch difference, high hypha concentration, small protein content, less heat-source matters and the like. Meanwhile, according to the method, culture medium ingredients are optimized, the culture medium is used for culturing the seeds so as to be favorable for thesynthesis of an oxytetracycline special structure and the improvement of the yield of the oxytetracycline calcium premix and also be favorable for subsequently separating and purifying the oxytetracycline calcium premix. A high-pressure diaphragm sheet frame machine is adopted to filter, and a flash evaporation dryer is used for drying. Compared with the traditional production method for the oxytetracycline calcium premix, the method disclosed by the invention is characterized in that a fermentation unit and yield can be effectively improved, production cost is lowered, meanwhile, the use of chemical organic solvent is avoided, pollution caused by the organic solvent for the oxytetracycline is avoided, and harm on animals is avoided.

The invention discloses a solid dispersion, a preparation, a preparation method and application thereof. The solid dispersion comprises a carrier and an active component, wherein the active component is a compound shown as a formula (I) and/or a pharmaceutically acceptable salt thereof; the carrier is a homopolymer and a copolymer of N-vinyl lactam and/or a pH dependent cellulose derivative. The preparation comprises the solid dispersion, a filling agent and a disintegrating agent. The solid dispersion disclosed by the invention has good dissolution rate, the solubility of effective components is remarkably improved, the bioavailability of the Bcl-2 inhibitor can be effectively improved, the solid dispersion has good dissolution rate and stability, and the medication safety can be improved.

The invention provides a nano-platform for overcoming the vector epitope inhibition effect of a vaccine. Albumins used as a raw material are reduced, thermopolymerizied, oxidized and concentrated, andthen are externally linked with an antigen epitope to obtain a target vaccine vector, wherein the reduction is carried out to reduce disulfide bonds in the albumins into sulfhydryl groups; the thermopolymerization is carried out to obtain nano-particles formed in an albumin self-assembling manner; and the oxidation is carried out to oxidize the sulfhydryl groups into the disulfide bonds. The nano-platform is a nano-vaccine vector having the advantages of completeness in inhibiting the production of vector protein antibodies, green and simple synthesis process, no involving of toxic chemicalsor complicated processes, low cost, small batch difference and great clinical transformation prospect.

The invention discloses a continuous production method of BHK21 cells by carrying out suspension culture, preservation and resuscitation in a bioreactor as well as application of the BHK21 cells, andbelongs to the field of cell preservation in biological pharmacy. According to the continuous production method of the BHK21 cells by carrying out suspension culture, preservation and resuscitation inthe bioreactor provided by the invention, BHK21 cells in the bioreactor can be preserved for up to 15 days or above by adjusting low-temperature preservation conditions in the bioreactor and/or repeating low-temperature preservation and resuscitation; and moreover, the BHK21 cells meeting cell density and cell vitality requirements for production can be continuously obtained. In addition, the obtained BHK21 cells are small in batch difference, so that product quality stability can be ensured so as to have production efficiency improved.