828results about How to "Simplify production steps" patented technology

An electronic device having mounted thereon an MEMS element or other functional elements, in which a device body and lid define an element-carrying space, the element-carrying space is sealed air-tight by an ultrasonic bonded part bonding the device body and the lid, and the element-carrying space having arranged inside it a system element secured to the device body and / or the lid by flip-chip connection.

The invention relates to a side light type LED backlight module. The backlight module comprises a light guiding plate made of a transparent material, an LED light source, a fluorescent film, and a transparent heat conducting material. At least one side of the light guiding plate is connected with support bars; and an accommodating space is formed between the light guiding plate and the support bars. The LED light source comprises a circuit board and a plurality of LED chips connected with the circuit board. The fluorescent film is arranged between the LED chips and the light guiding plate, and mixes the light rays emitted by the LED chips so as to produce white backlight or other required color backlights; and the LED light source and the fluorescent film are positioned inside the accommodating space. The transparent heat conducting material is filled in the accommodating space between the light guiding plate and the support bars. The LED backlight module integrally encapsulates a plurality of LED chips, thereby solving the problems of low light source density and insufficient brightness caused by the separately encapsulated LED chips in array. Consequently, the side light type backlight module is applied to large-scale ultra thin type LCD devices.

The invention discloses an antibacterial biaxially-oriented polylactic acid (BOPLA) film and a preparation method thereof. The polylactic acid film comprises the following components in parts by weight: 100 parts of a material special for a biaxially-oriented polylactic acid film and 0.4-3 parts of an antibacterial agent, wherein the film is prepared with a biaxial orientation method, and is 10-100 mum in thickness; the antibacterial agent is a poly-guanidine / polysilicate compound antibacterial agent, and is prepared by mixing a water-soluble poly-guanidine inorganic acid salt or an aqueous solution of an organic acid salt and an aqueous solution of water-soluble silicate, and adding an aqueous solution of a water-soluble metal salt; the molar ratio of the water-soluble poly-guanidine inorganic acid salt or the organic acid salt to the water-soluble silicate is 10:1-1:50; and the molar ratio of the water-soluble silicate to the water-soluble metal salt is 5:1-1:3. The antibacterial BOPLA film has the characteristics of high antibacterial efficiency, small using amount, good antibacterial effect and high water stability, and has a wide application prospect.

A preparation method of lithium bis(oxalato)borate relates to a preparation method of lithium bis(oxalato)borate for electrolyte of electrochemical equipment such as lithium ion batteries, comprising the following steps of: (1) uniformly mixing lithium salt and oxalate according to stoichiometric ratio, heating at 40-70 DEG C for 1-4h, adding a boron source into a mixture, thoroughly and uniformly mixing various kinds of materials; and (2) carrying out dry-pressing molding on the mixture at the pressure of 0.1MPa-10MPa, followed by heating reaction to obtain the lithium bis(oxalato)borate product.

A cascaded organic electroluminescent device includes an anode and a cathode. The device also includes a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer, an electron-transporting layer, and an electroluminescent zone formed between the hole-transporting layer and the electron-transporting layer wherein the physical spacing between adjacent electroluminescent zones is more than 90 nm; and a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer and a p-type doped organic layer forming a transparent p-n junction structure wherein the resistivity of each of the doped layers is higher than 10 OMEGA -cm.

The invention provides a method for forming nano carbon fibers, comprising providing polyacrylonitrile solution; spinning the polyacrylonitrile solution for forming a plurality of nano fibers, wherein the nano fibers are overlapped together to form a net shape; carrying out thermal oxidation on the nano fibers for forming a plurality of nano-oxygen fibers; and carbonizing the nano-oxygen fibers for forming the plurality of nano carbon fibers, wherein the nano carbon fibers are overlapped together to form a net shape. The nano fiber has high conductivity and can further improve the performance of a fuel cell.

The invention relates to the fields of animal medicine and veterinary medicines and in particular relates to a traditional Chinese medicine composition for treating pig trotter diseases and a method for preparing traditional Chinese medicine injection thereof. The traditional Chinese medicine composition for treating pig trotter diseases consists of 2-5 parts of honeysuckle, 2-5 parts of isatis root, 1-4 parts of Chinese angelica, 2-5 parts of radix scrophulariae, 2-5 parts of fructus forsythiae, 1-3 parts of safflower, 1-3 parts of ligusticum wallichii and 1-3 parts of liquorice. The preparation method comprises the following steps: mixing and crushing medicinal materials, adding purified water, heating and performing reflux extraction; concentrating the extracting solution, and adding ethanol for performing alcohol precipitation; concentrating the alcohol precipitation supernatant containing active ingredients for concentrating and recovering ethanol, and performing adsorption bleaching treatment on the concentrated solution; regulating the pH value of the adsorption bleaching treatment solution, sequentially adding Tween-80 and benzyl alcohol, uniformly mixing and filtering; and adding water for injection so as to regulate the content of active ingredients of the liquid medicine, carrying out split charging and sterilizing. The traditional Chinese medicine injection can be used for treating pig trotter swelling pain, contusion, bubbles, fester, sand crack, leg feet deformation and the like caused by various etiological factors.

The invention discloses a method for preparing activated carbon from semi-coke and a device used in the method. The method comprises the following steps of: taking semi-coke of which the volatile matter is greater than 5% and the thermal stability is greater than 70%, screening and feeding the semi-coke of which the granularity is 5-20mm into a rake-type activating furnace (8) to be subjected to activation treatment to generate the activated carbon; discharging the activated carbon from the rake-type activating furnace (8), cooling at a helix cooling machine (6) and conveying through a belt conveyer (7); and finally entering an activated carbon packaging period to be selected and packaged. According to the method, the structural characteristics of organic matter components and micro-pores of a semi-coke product are sufficiently utilized, and with the combination of the operation control principle of the domestic activation furnace, a novel process control method is innovated, and the activation process of the rake-type furnace is applied to the production process of the semi-coke-made activated carbon, so that the activation process control precision of a product is greatly improved, activated carbon products of higher quality are produced, the additional value of a semi-coke product is greatly increased, the application space of the semi-coke is widened, and the market requirements of the activated carbon are met.

Disclosed is a near-field photocatalyst using a ZnO (ZnO) nanowire. The photocatalyst is advantageous in that low-priced zinc is used instead of titanium, conventionally used as a photocatalyst to reduce expenses, and that it is possible to obtain overvoltage which is sufficient to generate hydrogen using an optical near field formed around an end of a ZnO nanowire without the application of additional extenal voltage, thus the use of a costly electrode, such as platinum, is avoided and a process is simplified.

The invention discloses an antibacterial regenerated cellulose fiber and a preparation method thereof, and the antibacterial cellulose fiber contains 0.5 ~ 10wt% of chitosan quaternary ammonium salt, the preparation method comprises the following steps: (1) preparing the chitosan quaternary ammonium salt with deionized water and sodium hydroxide into an antibacterial solution; (2) using cellulose pulp as a raw material to prepare spinning viscose; (3) adding the antibacterial solution to a viscose solution of any step from the yellowing step to before spinning, with the adding amount of the chitosan quaternary ammonium salt being 0.5 ~ 10% of the weight of alpha cellulose in the viscose solution, to obtain an antibacterial spinning viscose solution; and (4) obtaining the antibacterial regenerated cellulose fiber by coagulating bath spinning and drawing molding of the antibacterial spinning viscose solution, and then refining and drying. The antibacterial regenerated cellulose fiber simultaneously has biodegradability, biocompatibility, safety and antibacterial property and other excellent properties, and has better moisture absorption and moisture preservation, crease resistance and softness.

The invention provides a 3-ketosteroid-delta 1-dehydrogenase gene, cholesterol oxidase coded by the same, an expression vector containing a gene sequence of the 3-sterone-delta 1-dehydrogenase gene, a gene engineering recombinant strain containing the expression vector and a method for preparing 3-sterone-delta 1-dehydrogenase. The 3-sterone-delta 1-dehydrogenase provided by the invention is new 3-sterone-delta 1-dehydrogenase. The recombinant strain provided by the invention can be used for transforming 3-keto steroids, wherein the optimized recombinant strain can also be used for transforming androstane-4-alkenyl-3,17-diketone into boldenone, the expressed target protein is a soluble protein, the bottleneck of membrane protein in the traditional industrial production is broken through, and the recombinant strain has great significance in the industrial production of KSDD (3-ketosteroid -delta 1-dehydrogenase). Steroids are produced through microbial transformation, the production efficiency and the product quality of a steroid medicine production system are improved, and the production cost is reduced.

The invention discloses a solid-phase synthesis method of human relaxin-2, which comprises the following steps of: 1) solid-phase synthesis of a single-ring chain A; 2) solid-phase synthesis of a chain B; and 3) chemical synthesis of the human relaxin-2. By using the method to produce the human relaxin-2, the yield is high and can be up to 74-82%. The method disclosed by the invention has the advantages of convenient production steps and no impurity production in the production process, and effectively solves the problems that the solid-phase synthesis of the chain B of the human relaxin-2 isdifficult to complete by the Fmoc strategy and the synthesis process is too complicated.

The invention discloses a preparation method for sheet aluminium oxide. Aluminium hydroxide powder with a certain granularity is added into a surface active agent and water for grinding until being uniform, dried and fired, so as to obtain gamma- aluminium oxide; then seed crystal, a mineralizing agent and water are added into the gamma- aluminium oxide for mixing evenly, after continuous grinding, drying can be performed again, and through final burning, hexagonal sheet gamma- aluminium oxide with the granularity ranging from 20 to 100 mum is obtained.