59 results about "Gut morphology" patented technology

The invention relates to a fitting device for a special-shaped curved-surface cover plate and a flexible screen. The fitting device comprises a fitting body for pressing a flexible screen, a support body and a tensioning mechanism for elastically connecting the two ends of the flexible screen to the bottom of the support body or the joint body; the fitting body is provided with an air bag shell and an elastic partition wall which is positioned on the inner side; the air bag shell is provided with a flat wall and a curved wall which are used for at least pressing a flat area or an end of an archook area of the special-shaped curved surface cover plate; the flat wall and the curved wall form a flat air cavity and a bending air cavity respectively with the elastic partition wall. The fittingdevice is provided with a flat air cavity and a bending air cavity, and the air cavity can be controlled respectively, on the one hand, the fitting device can effectively control the strength of thewhole fitting body in the non-inflatable state, maintain a good shape, and effectively control the deformation of the fitting body in the inflatable state, which is more conducive to the control of the fitting strength, so as to be more favorable for controlling the bonding force; on the other hand, the different areas of the flexible screen can be attached by step, so that the bonding effect is further improved. The invention also provides a fitting method.

A solid catalyst component for preparing alpha-olefin homopolymer or copolymer with high catalytic activity is prepared through reacting between C2-C4 alcohol and Mg powder under existance of halomethane to obtain Mg matches solution, reacting on inorganic carrier, drying to obtain Mg carrier, and reacting on Ti(OR)nCl4-n in inertial hydrocarbon solvent, where R is C2-C8 alkyl and n=0-4.

The invention provides a polynuclear nickel(II) acenaphthenequinonediimine catalyst for synthesizing branched polyethylene, comprising a main catalyst and a co-catalyst, characterized in that: the main catalyst is formed by loading the polynuclear nickel bromide acenaphthenequinonediimine complexes on the MgCl2/AlRm(OEt)[3-m] carrier formed by aluminium trialkyl modified MgCl2-C2H5OH complexes; the co co-catalyst is the AlEt2Cl and the catalyst for synthesizing branched polyethylene by ethane polymerization is formed by the main catalyst and the co-catalyst, and the mol ratio is that: Ni[(n+1)]L[(n)]Br[2(n+1)]:AlEt[2]Cl is 1:100-1000. The advantages of the invention are that: the prepared catalyst only uses general AlEt[2]Cl as co-catalyst without using expensive MAO or boron compounds, and the catalysis for ethylene polymerization is high active, thus the branched high branching degree and low density polyethylene plastomer and lower density elastomer is prepared; the carrier uses the modified MgCl2-C2H5OH complexes, thus the prepared polyethylene product has good form. The catalyst is suitable for being generalized and used in industrial production with notable advantage.

The invention discloses a method for sequential culture of human umbilical cord blood mesenchymal stem cells by using two culture media. A lymphocyte separation medium density gradient centrifugation method is used for separating umbilical cord blood mononuclear cells, a dulbecco modified eagle medium (DMEM)/F12 is used for primary culture of the mesenchymal stem cells of the human umbilical cord blood, and the method increases adherence of the cells, reduces growth of osteoclast like cells remarkably, facilitates formation of human umbilical cord blood-mesenchymal stem cells (hUCB-MSCs) colonies, and greatly improves successful rate of culture of the hUCB-MSCs. The DMEM/F12 is used continuously for subculturing to a P2 generation, the method is combined by a using enzymatic digestion and differential velocity adherent method simultaneously, and the method facilitates purification of P1-P2 generation cells remarkably. A P3 generation and the following generations are cultured by using an Oricell human umbilical cord mesenchymal stem cell culture medium, marker proteins and good morphological characteristics and growth characteristics of the hUCB-MSCs are maintained, and multilineage differentiation potential of the hUCB-MSCs is maintained. In addition, costs of the culture media adopted by the method are reduced remarkably.

The invention discloses a manufacturing method of a whole-bean bean product. The method comprises the following steps of: using high-quality soybeans as raw material, cleaning, removing impurity, soaking for 8-10h at room temperature, removing hard beans and incompletely soaked beans with crimped surface, draining, blanching for 1-50min, pulping with high speed in order to form a whole-bean bean product slurry with an average grain size of lower than 40micro m, homogenizing with pressure of 20MPa to 70MPa, cooking for 2-20min at 70 DEG C-100 DEG C, rapidly cooling to 0 DEG C-20 DEG C, adding a compound coagulator, mixing uniformly, keeping temperature and standing for 30-200min at 20 DEG C-95 DEG C, so as to obtain the whole-bean bean curd. With the adoption of the manufacturing method, no bean dregs is generated in the soybean milk and bean curd production processes; the nutritive materials such as proteins, fats, dietary fibers and vitamins are remained furthest in the manufactured whole-bean bean product, and the products further has excellent shape and mouth feel.

The invention belongs to the technical field of porous ceramic materials, and discloses a porous ceramic material with a high water absorption rate and a high water retention rate and a preparation method and application thereof. The method comprises the following steps: (1) mixing kaolin, diatomite, talc, starch and feldspar uniformly, performing ball milling, performing drying, and performing sieving to obtain initial powder; (2) grinding a binder and the initial powder obtained in the step (1), and performing sieving to obtain secondary powder; and (3) performing dry pressing molding on thesecondary powder obtained in the step (2), and performing sintering to obtain the porous ceramic material with the high water absorption rate and the high water retention rate. The ceramic material provided by the invention has the advantages of the high water absorption rate, the high water retention rate, good bending resistant strength, and a stable release speed and good morphological stability in absorption and release processes; and the preparation method provided by the invention is simple and high-efficiency, the energy consumption is less, and the ceramic material is suitable for industrialized production.

The invention relates to a preparation method of anti-acarien crease resistant fabric, including the steps of crease resistant finishing of fabric, drying, tentering and sizing, anti-acarien antibiotic solution soaking and secondary drying. Preparation process is simple and feasible and application range is wide. The prepared fabric has favourable shape memory and crease resistant non-ironing functions, can effectively and rapidly expel acarien, and degradation of physical performance like strength is less and no flaring is produced. Besides, the fabric is used for making bedding and has favourable smooth texture and absorbency to skin.

The invention provides a preparation method for a China-hemp antibacterial fiber material. The preparation method comprises the following steps: (1) reacting China-hemp fibrils with a base to obtain alkalized China-hemp fibers; (2) oxidizing the alkalized China-hemp fibers with an oxidizing agent to obtain oxidized China-hemp fibers; (3) reacting the oxidized China-hemp fibers with triethylenetetramine to obtain aminated China-hemp fibers; and (4) reacting the aminated China-hemp fibers with glycidyl trimethylammonium halide to obtain the China-hemp antibacterial fiber material containing a quaternary ammonium anti-bacterial functional group. According to the invention, the quaternary ammonium anti-bacterial functional group is covalently grafted into a China-hemp fiber skeleton structure,so the China-hemp antibacterial fibers are allowed to contain the quaternary ammonium antibacterial functional group and have excellent antibacterial properties, no toxicity to human beings, long-lasting antibacterial action and stable performance. The preparation method of the invention is simple in process, easy to opera and control, and friendly to environment. At the same time, the fibers obtained after the reactions are free of pungent amine smell, have good shape and mechanical strength, and can be applied to the development of various antibacterial functional textiles and the sterilization of industrial and domestic water.

The invention relates to the field of biology and medicines, and especially relates to an adipose-derived stem cell preparation and a preparation method thereof. The adipose-derived stem cell preparation comprises adipose-derived stem cells, hyaluronic acid, alhumin and normal saline. The adipose-derived stem cells can maintain good survival rate and activity, and do not differentiate under the protection of hyaluronic acid, alhumin and normal saline in the adipose-derived stem cell preparation. The preparation method of the adipose-derived stem cell preparation provided by the invention can avoid damages of the adipose-derived stem cells, and improves the survival rate of the adipose-derived stem cells in the preparation. Experiments show that the adipose-derived stem cell preparation can maintain the survival rate of the adipose-derived stem cells above 99%, and allows the cells to have uniform size and shuttle-shaped form. After the adipose-derived stem cells are preserved at 0-4DEG C for 72h, the cells still maintain good form and have no volume enlargement or other abnormal phenomena, the survival rate still maintains above 95%, and the adipose-derived stem cells still maintain the characteristics of stem cells, and do not differentiate.

The invention discloses to a method used for simultaneous preparation of phospholipid microtubule and vesicle using point-plane electrode electric field. The method is used for solving a problem that existing method is not capable of realizing simultaneous preparation of phospholipid microtubule and vesicle. The method comprises following steps: step 1, electrode cleaning; step 2, preparation of phospholipid dry membrane; step 3, assembling of a sealed preparation apparatus; and step 4, preparation of the phospholipid microtubule and vesicle, and obtaining of the phospholipid microtubule and vesicle. Advantages of the method are that: firstly, the method is capable of realizing simultaneous preparation of the phospholipid microtubule and vesicle using point-plane electrode electric field in a same system, form of the obtained phospholipid microtubule is good, yield is high, and phospholipid microtubule size is relatively large and uniform; and secondly, the length of the obtained phospholipid microtubule ranges from 200 to 1300 mum, and diameter ranges from 1 to 2 mum; and diameter of the obtained phospholipid vesicle ranges from 15 to 120 mum. The method is used for simultaneous preparation of the phospholipid microtubule and vesicle using point-plane electrode electric field.

The invention relates to a sewage processing agent, which comprises the following raw materials in parts by weight: 4 to 7 parts of bentonite, 2 to 4 parts of alum, 1 to 2 parts of aluminum sulfate, 5 to 10 parts of lithopone, 10 to 15 parts of sodium chloride, 0.3 to 1 part of lime, 10 to 20 parts of adsorbate, 0.5 to 1 part of sodium carbonate, 6 to 10 parts of iron chloride, and 40 to 50 parts of water. By controlling and changing the addition sequence of inorganic polymer and organic polymer with different functional groups and the conditions, under which reactions will or will not happen during the compounding process, the components can maintain good morphology distribution and stability before addition; after addition, the morphology of the components quickly changes, and the components carry out flocculation efficiently.

The invention relates to a novel sewage treatment agent. The novel sewage treatment agent is prepared from, by weight, 20-30 parts of polyacrylamide, 12-15 parts of polyethylene imine, 20-25 parts of activated carbon, 2-5 parts of titanium dioxide and 5-10 parts of sodium dodecyl sulfate. By controlling and changing the addition sequence of inorganic polymer and organic polymer substances with different functional groups and the conditions under which reactions happen or not happen in the compounding process, good form distribution and stability of the components are kept before the components are added, and very quick form transformation and efficient coagulation and flocculation are achieved after the components are added.

The invention relates to the field of biomedicine, in particular to a menstrual blood source stem cell preparation and a preparation method and application thereof. The menstrual blood source stem cell preparation comprises menstrual blood source stem cells, albumin and normal saline. The experiment indicates that the menstrual blood source stem cell preparation can keep the survival rate of the menstrual blood source stem cells at 99% or above, the cells are uniform in size, and the cells are each in a shuttle shape. After being preserved for 1 month at the temperature of 0-4 DEG C, the cells are still kept in good forms, the abnormal phenomenon such as increase of the size does not appear, the survival rate is still kept at 95% or above, and through surface antigen detection, the menstrual blood source stem cells still keep the characteristics of stem cells, no differentiation is generated, and good activity is achieved. The menstrual blood source stem cell preparation can achieve a good treatment effect when used for treating premature ovarian failure, and after the menstrual blood source stem cell preparation is used for a week, the number of follicles of a mouse is obviously increased.

The invention firstly discloses an amphiphilic small-molecule prodrug in combination of photothermal therapy and chemotherapy as well as a nano-particle preparation method and application thereof. Thepreparation method of the small-molecule prodrug comprises the following steps: selecting a hydrophilic near infrared dye molecule IR820 and a hydrophobic chemotherapy drug PTX, modifying, forming ester bonds between IR820-COOH and PTX so as to be bonded, thereby obtaining the small-molecule prodrug of an amphiphilic small-molecule prodrug IR820-PTX. By virtue of a simple dialysis method, the prodrug can be self-assembled in water to form nano-particles, and has good morphology and particle size distribution. Distribution in mice and antitumor tests show that the prodrug nano-particle preparation can be passively targeted to tumor tissues and greatly accumulated at tumor sites, has an excellent tumor inhibition effect, is safe, low in toxicity and small in side effects, and provides an effective scheme for combined treatment of the photothermal therapy and chemotherapy.

The invention discloses a thiol acrylic fiber material and a synthesis method thereof and belongs to the technical field of high polymer materials. The method comprises the following steps: taking an acrylic fiber as a raw material fiber, introducing a thiol through a chemical grafting reaction between the acrylic fiber and an organic compound (comprising cysteine, mercaptoethylamine, o-amido thiophenol and the like) containing amido and thiol, so as to obtain a novel functional fiber material. The functional fiber material is high in group content, keeps good form and strength and has application prospects in aspects such as functional textiles, water and air purification, chemical substance separation and extraction and the like. The synthesis method is simple in process, mild in conditions and easy to control, the used chemical raw materials are non-toxic or low-toxic, the raw material consumption is low in reaction process, no toxic by-product is generated, and the method is an environment-friendly synthesis method.

Conducting polymers based on renewable resource materials are very attractive because of their wide availability and lower cost compared to petroleum based products. Here we developed a novel dopant for electrically conducting polyaniline from renewable resource cardanol, the main component of cashew nut shell liquid (CNSL). The novel dopant 2-ω-unsaturated-4-hydroxy-4′-sulfinic acid azo benzene or otherwise known as cardanol azo sulfonic acid (1) is synthesized by reaction of diazotized sulphanilic acid (4-aminophenylsulfonicacid) with cardanol under the basic condition. The new cardanol azo sulfonic acid (1) has a long alkyl chains at the 2 positions, which increases the solubility of the dopant as well as polyaniline doped materials in common solvents for many applications. The present invention essentially comprises of three steps; (a) synthesis of cardanol azo sulfonic acid dopant 1 from cardanol (b) synthesis of electrically conducting polyaniline using 1 as dopant both doping the polyaniline emeraldine base in solution and melt and in-situ polymerization of aniline in presence of 1 in various organic and aqueous combination in the interfacial, emulsion and dispersion routes (c) preparation of polyaniline/dopant 1/thermoplastics blends in solution and melt process and controlling the particle size while maintaining the good morphology. The dopant (1) consisting polyaniline emeraldine salt and its thermoplastic blends are potential materials for various applications in opto-electronic industry.

The invention relates to instant rana japonica oil and radix polygonati officinalis tin. The instant rana japonica oil and radix polygonati officinalis tin is prepared from rana japonica oil, radix polygonati officinalis, rock candies, honey and fermented vinegar. Every 1kg of instant rana japonica oil and radix polygonati officinalis tin comprises 330-370g of rana japonica oil, 40-55g of radix polygonati officinalis, 40-55g of rock candies, 30-50g of honey and 12-18 ml of fermented vinegar, and the balance of water. A fermentation method for the rana japonica oil has the advantages that: through the fermentation of an edible alcohol solution with certain concentration, the fermentation effect of the rana japonica oil can be achieved; meanwhile, alcohol in the solution can moderately denature proteins in the rana japonica oil to achieve a solidifying effect for proteins in the fermented rana japonica oil; the fermented rana japonica oil is not broken, and has an inherent curved complete shape of the rana japonica oil; the product has good shape and appearance and has effects of improving the inherent fishy smell and odor of the rana japonica oil, and improving the flavor of the product. The mass of the fermented rana japonica oil is controlled to be 20-25 times that of the original rana japonica oil.

The invention relates to a sewage treating solvent. The sewage treating solvent is prepared from, by weight, 10-30 parts of diszolidinyl urea, 5-15 parts of methylisothiazolinone, 10-15 parts of medical stone particles, 20-30 parts of sodium lignin sulfonate, 10-20 parts of chitosan, 10-20 parts of polyvinylpyrrolidone, 10-20 parts of polymeric aluminum sulfate-silicate, 10-20 parts of diacetone acrylamide, 10-20 parts of phosphonate, 10-20 parts of ethylenediamine tetra methylenephosphonic acid and 50-100 parts of deionized water. By controlling and changing the adding sequence of inorganic polymer matter and organic polymer matter with different functional groups and reaction occurrence and nonoccurrence conditions in the recombination process, the purposes of good form distribution and stability of the components before feeding and rapid form conversion and efficient coagulation and flocculability of the components after feeding are achieved.

The invention discloses a deep processing method for fresh flowers. The deep processing method comprises the following steps of trimming and pre-moisturizing the fresh flowers; dehydrating; softeningand bleaching; shaping; filling a medium, dyeing and color fixing, specifically, using a solution containing PEG 200, PEG 400, PPG 600, ethanol, benzoic acid, food pigment, peregal o-25 leveling agentand formaldehyde-free color fixing agent TS-102 to carry out filling the medium, dyeing and color fixing on the fresh flowers after shaping; and washing, drying and packaging. The method provided bythe invention is suitable for the deep processing of 85% or above of fresh leaves, 75% of the fresh flowers and 25% of fruits in the nature; and according to the processing method provided by the invention, the storage time of the fresh flowers can be prolonged, and the good shape and the glossiness of the fresh flowers can be kept.

The invention relates to a preparation method of a novel sewage processing agent, which comprises the following components in parts by weight: 20 to 30 parts of polyacrylamide, 12 to 15 parts of polyethyleneimine, 20 to 25 parts of active carbon, 2 to 5 parts of titanium dioxide, and 5 to 10 parts of sodium lauryl sulfate. By controlling and changing the addition sequence of inorganic polymer and organic polymer with different functional groups and the conditions, under which reactions will or will not happen during the compounding process, the components can maintain good morphology distribution and stability before addition; after addition, the morphology of the components quickly changes, and the components carry out flocculation efficiently.

The invention relates to novel metal ion tolerance keratinase and application thereof, and provides keratinase based on metagenome technology excavation and an application method of the keratinase, belonging to the field of industrial biotechnology. The overall length of the keratinase is 1,149bp, and 382 amino acids are encoded; take B.subtilis WB600 as an example, the heterologous expression ofa keratinase gene is successfully realized. The method for obtaining the keratinase gene is convenient and feasible, the gene is subjected to recombined expression, a constructed recombination straincan realize secretory expression of recombined keratinase, the recombined keratinase has relatively good tolerance to metal ions and a surface active agent, and the stability of enzyme is relatively good. Recombinant bacteria are short in fermentation period and suitable for industrial production in large scale. In addition, the enzyme has good reducing capacity and can be applied to research in which a biological method is used for preparing nano-silver particles, and the prepared nano-silver particles have good forms and relatively good bacteriostatic activity.

The invention relates to a sewage treatment agent which is prepared from the following ingredients in parts by weight: 20-30 parts of polyacrylamide, 12-15 parts of polyethylene imine, 20-25 parts of activated carbon, 5-10 parts of lithopone, 10-15 parts of sodium chloride, 0.3-1 part of lime, 10-20 parts of adsorbate, 0.5-1 part of sodium carbonate, 6-10 parts of ferric chloride and 40-50 parts of water. Through controlling and changing the addition sequence of inorganic macromolecule substances and organic macromolecule substances of different functional groups and conditions for generating reaction or not generating reaction during a recombination process, such ingredients are kept in favorable shape distribution and stability before being fed, and such ingredients have rapid shape conversion and efficient coagulation and flocculation properties after being fed.

The invention discloses a building 3D printing type rapid prototyping composite material. The composite material is prepared from the following raw materials in parts by weight: 300-450 parts of cement, 80-125 parts of superfine slag powder, 460-540 parts of aggregate, 0.2-0.8 part of a water reducer, 1.0-1.9 parts of a composite retarder and 45-63 parts of a volume stabilizer, wherein the composite retarder is prepared from a coagulant and a retarder body, the weight ratio of the coagulant to the retarder body is (0.4-0.8) part to (0.6-1.1) parts, and the volume stabilizer is prepared from, in parts by weight, (25-35) parts of high-calcium fly ash and (20-28) parts of a CSA expanding agent. According to the composite material, a printing material prepared from the composite material is good in cohesiveness property and high in stability and has good morphology retention capability and cohesiveness performance, so that a printed building has good morphology and volume stability.

The invention discloses a PP-ST-DVB-based cation exchange fiber and a synthesis method thereof, and belongs to the technical field of polymer materials. A PP-ST-DVB fiber is taken as a raw material fiber, a benzene ring on the PP-ST-DVB fiber and an organic compound containing an intramolecular acid anhydride group are subjected to a reaction under the action of a catalyst, carboxyl is introduced,and the fiber material containing carboxyl is obtained. The fiber material has high carboxyl content, maintains good shape, elasticity and strength, and has application prospect in functional textiles, water and air purification, chemical substance separation and extraction, and the like. According to the synthesis method, carboxyl is introduced into the polypropylene fiber grafted with styrene with a one-step method, so that the use of carcinogens such as chloromethyl ether in the traditional synthesis method is avoided, and the synthesis method is simple in process, mild in condition and easy to control.