7results about How to "Simple production method" patented technology

The utility model discloses an integrated disinfection plate and a disinfection cabinet with the same, the disinfection plate comprises a mounting plate, the mounting plate is provided with an air passing channel and an air outlet channel, an air inlet part is integrally formed on the mounting plate, the air inlet part is provided with an air inlet channel, and the air outlet end of the air inlet channel is communicated with the air inlet end of the air passing channel. The utility model has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects of reducing the production cost and improving the production efficiency and the drying performance.

The present application relates to a kind of binding agent, solder matrix and self-fusion diamond heat sink heat conducting sheet and preparation method, the raw material composition of binding agent is 15-40wt% polyvinylpyrrolidone, 0.5-7wt% BTA, 0-5wt% PG, 1-8wt% xanthan gum, 1-10wt% methyl cellulose, 0.5-12wt% polyamide wax and 0.1-1wt% polydimethylsiloxane, the rest is glycerol. The composition of solder is 60-75wt% silver, 20-34wt% copper, 1-6wt% titanium and 0.5-1wt% chromium. The above-mentioned solder and binding agent are prepared into solder matrix according to the ratio of 85-93wt%:7-15wt% respectively. In the process of welding with diamond, the above-mentioned solder matrix can form a closely combined binding layer between diamond and copper, and greatly improve the thermal conductivity of material. The thermal conductivity of diamond copper composite material of the present application reaches 960W / (m·K) at most;Process stability, the performance index repeatability of finished product is very good;Process is simple, production mode is simple, no operation difficulty, not limited by equipment and site, process control and industrialization popularization are facilitated.

The application discloses a preparation method of a pyrrolidone derivative. Under the action of a non-precious bimetallic multifunctional catalyst, an acetylenic acid derivative shown in formula I is reacted with an amine, a nitro compound or a nitrile compound shown in formula II in a reaction solvent under the heating and stirring of hydrogen gas to prepare a pyrrolidone derivative shown in formula III, and a reaction formula is as follows: the non-precious bimetallic multifunctional catalyst is a nitrogen-doped carbon-based carrier NC derived from a metal-organic framework material ZIF-8 and an effective active ingredient embedded on the carrier NC; the effective active ingredient comprises two metals, one metal is Co, and the other metal is any one of Ni or Cu. The yield of the pyrrolidone derivative synthesized by the method can reach 77% to 100%. The method has the advantages of simple process, high selectivity of the target product, cleanness and environmental protection, small catalyst consumption, low cost, simple catalyst preparation, high catalytic stability and suitability for industrial production.

The invention relates to the field of biological pharmacy, in particular to fusion protein, a nano vaccine and application thereof. The fusion protein provided by the invention comprises a fusion protein 1 and / or a fusion protein 2; the fusion protein 1 is prepared from a SpyTag protein and an Rv1498A protein; and the fusion protein 2 comprises a SpyCatcher protein and a gp350 protein. A flavin binding protein Rv1498A in a mycobacterium tuberculosis dodecin-like family is used as a carrier protein, a distal membrane end and a proximal membrane end of an EB virus gp350 extracellular domain are respectively displayed on the surface of the Rv1498A by utilizing a SpyTag-SpyCatcher technology, two immunogenic compounds are obtained, high expression quantity is realized while correct modification and folding of an antigen are ensured, and the EB virus gp350 extracellular domain immunogenic protein Rv1498A can be used for preparing the EB virus gp350 extracellular domain immunogenic protein Rv1498A and the EB virus gp350 extracellular domain Rv1498A immunogenic protein Rv1498A and the EB virus gp350 extracellular domain Rv1498A. And the nano-particle vaccine prepared by the aid of an adjuvant is proved to have better immunogenicity in a mouse body.

The application belongs to the technical field of genetic engineering, and provides a method for promoting production of phenoxazine-1-carboxylic acid by limiting competition pathways of phenoxazine synthesis. The application takes high-yield strain QPCA-7 as a starting strain, limits the synthesis pathways of salicylic acid, siderophore and the like of phenoxazine, and realizes the improvement of the yield of phenoxazine-1-carboxylic acid of the strain. ycaC The application obtains an engineering strain by non-scarring knockout of the gene for limiting the synthesis of siderophore in Pseudomonas, and the strain is named QPCA-8, and the yield of phenoxazine-1-carboxylic acid of the strain is improved. pabC The application knocks out the gene for limiting the production of salicylic acid in Pseudomonas on the basis of QPCA-8, and the yield of phenoxazine-1-carboxylic acid of the strain is improved.

The invention discloses a phosphorus-silicon modified anhydride curing agent and a cured resin composition, and the phosphorus-silicon modified anhydride curing agent comprises the following raw materials in parts by mass: 80-90 parts of anhydride, 5-20 parts of hydroxyl-terminated silicone oil, 10-20 parts of a hydroxyl organic phosphorus compound and 0.1-2 parts of a catalyst. The curing agent has the following advantages: (1) the flame retardance of the epoxy resin curing agent is improved (the limit oxygen index of epoxy resin can reach 33.6%, and the vertical combustion (UL94) level can reach V-0 level), and meanwhile, the impact strength of the epoxy resin is remarkably improved; (2) the common defects of migration, moisture absorption and the like of additive flame retardants are prevented; and (3) the curing agent is used for preparing the epoxy composite material, so that the halogen-free flame retardance of the epoxy resin is realized, and the composite material is endowed with good heat resistance and flexibility.

The present application relates to a kind of fermentation medium of mupirocin and the production method of mupirocin.The present application improves fermentation medium and the production method of mupirocin, significantly improves the fermentation level of mupirocin, and when fermenting 5-7 days, the fermentation titer reaches 12000mg / L or more.The whole production process is cheap and easy to obtain, and the fermentation process is simple and easy to operate, which is beneficial to industrial production.