75results about How to "Wide range of security" patented technology

A fluid control valve includes a cylindrical housing with at least one opening through a housing wall, a cylindrical main valve axially movably arranged inside the housing for controlling a fluid flow through the at least one opening and a main valve spring member acting on the main valve. The main valve includes a base wall defining a fluid control volume and fluid main volume in the cylindrical housing. The base wall includes an opening for fluidly connecting the fluid control volume with the fluid main volume. The fluid control valve further includes a pilot valve positioned at the base wall opening, which pilot valve is moveably arranged for controlling a fluid flow through the base wall opening, and an electro-mechanical actuator configured to act on the pilot valve for controlling the main valve via the pilot valve. A method for adjusting the axial position of a cylindrical main valve of a fluid control valve is also provided.

The invention discloses a fireproof door with a triple fireproof function. The fireproof door comprises a fire-resisting door frame and a main fireproof door body; water tanks are arranged at the twoends of the upper portion of the fire-resisting door frame, and firefighting spraying heads are mounted below the water tanks; door spindles are sequentially fixed to the inner side of the fire-resisting door frame, fireproof shells are arranged at the front end and the rear end of the main fireproof door body, rolling wheels are fixed to the upper end and the lower end of the interior of each fireproof shell, and sliding fire-resisting doors are arranged between the rolling wheels; and the sliding fire-resisting doors are stored in the fireproof shells, anti-collision protruding blocks are mounted on the outer surfaces of the fireproof shells, pulling handles are arranged on the outer sides of the sliding fire-resisting doors, and a fire-resisting plate is arranged in the main fireproof door body. According to the fireproof door with the triple fireproof function, a three-layer fireproof structure is formed by the mounted main fireproof door body and the fireproof shells at the frontend and the rear end of the main fireproof door body, erosion of the fire behavior on the main fireproof door body can be weakened under blocking of the fireproof shells, and thus the fire-resisting performance of the fireproof door with the triple fireproof function is improved.

The invention relates to a traditional Chinese medicinal preparation, and especially relates to a qi tonifying and pulse restoring preparation. The preparation is prepared through an improved method. The method comprises the following steps: 1, extracting Radix Ginseng Rubra by ethanol; 2, extracting Radix Ophiopogonis and Chinese magnoliavine by water, and precipitating twice by ethanol; 3, mixing a Radix Ginseng Rubra extract liquid obtained in step 1, and a Radix Ophiopogonis extract liquid and a Chinese magnoliavine extract liquid obtained in step 2 to obtain a mixed liquid, allowing the mixed liquid to pass through a D392 resin column, receiving the eluant when glucose flows out, concentrating, and drying to obtain extract products; and 4, using the extract products as medicinal active components to prepare the medicinal preparation.

Provided is a novel use of formaldehyde in preparing pharmaceuticals for prevention and cure of animal diseases caused by pathogenic microorganisms through infection of digestive canal by means of digestive tract administration, wherein formaldehyde can deactivate pathogenic microorganisms and their toxins, make it lose pathogenicity while keeping the antigenicity. The invention realizes the advantages of broad spectrum, quick and sure effects, small dosage, less administration, lower price and removal of drug resistance and medicinal residual produced by the application of antibiotics.

The invention provides a multi-target tacrine derivative and a preparation method and application thereof. The compound has the structure shown in a formula (I) (please see the specification in the formula (I)), wherein n is a natural number greater than 1; m is 1 or 2; p is 0 or 1; R1 is H or halogen; and Y is selected from the following structures (please see the specification for the structures) or, a pharmaceutically acceptable salt of a compound in a formula (X). According to the compound, activity of histone deacetylase (HDACs), acetylcholinesterase (AChE) or butyryl cholinesterase (BChE) can be effectively inhibited.

A cow-bezoar microbolus for clearing away heat of the upper part of the body, an improvement on cow-bezoar bolus for higher curative effect, features that is contains the promoter chosen from microcrystalline cellulose, superfine silica gel powder, polyvidone, cross-linking polyvidone and compressible starch beside the components said cow-bezoar bolus has. Its preparing process is also disclosed.

The invention discloses a recombinant lamprey lysin protein as well as a preparation method and application thereof in preparing an antithrombotic medicament. The recombinant lamprey lysin protein is a product which is obtained through the following steps: constructing a lamprey protein lysin gene on a pET28a (+) vector; and carrying out efficient induction expression on the gene in Escherichia coli. The lamprey lysin cDNA (complementary deoxyribonucleic acid) sequence 351bp is long, and the protein consists of 117 amino acids, can perform specific binding with glycoprotein GpIIb/IIIa on a blood platelet cell membrane, competitively antagonizes the binding of fibrinogen and blood platelets, prevents the activation of the blood platelets and variation of GpIIb/IIIa receptor conformation and blocks the binding of the receptor and various ligand, so as to inhibit the final common passageway for blood platelet aggregation so as to block thrombosis. The recombinant lamprey lysin has an obvious antithrombotic effect.

The invention relates to a spirulina feed additive for livestock, poultry and aquatic livestock and a preparation method thereof, which belong to the field of biological agents. The mass ratio of compositions of raw materials of the spirulina feed additive is that spirulina to radix astragali to yellow beans to aloe to salvia miltiorrhiza to rhodiola rosea is 30-46: 1-2 : 5-10: 1-2:1-2: 1-2. The spirulina feed additive has efficacies of improving the survival rate of animals, strengthening immunologic functions, improving disease resistance capability, promoting growth nutrient, increasing eating amount, strengthening the constitution, increasing the weight, strengthening cellular immune functions, resisting the stress, protecting livers, quickly supplementing high-efficiency nutritional components needed by the animals and so on, to the livestock, the poultry, and the aquatic livestock. The spirulina feed additive is mixed with feed, and has the advantages of high absorption ratio, broad distribution, no residual medicine, no toxic side effect, and broad safety range. The preparation method has the advantages that the preparation method has simple process and convenient operation, can obtain high-concentration high-yield products, and has no pollution to the environment.

The invention discloses a fireproof door with triple protection functions. The fireproof door comprises a fireproof door frame and a main fireproof door. Water tanks are arranged at the two ends of the upper portion of the fireproof door frame, fire-fighting spraying heads are mounted below the water tanks; door shafts are sequentially fixed on the inner side of the fireproof door frame; fireproofshells are arranged at the front end and the rear end of the main fireproof door; rollers are fixed to the upper end and the lower end of the interior of each fireproof shell, a push-pull fire-retardant door is arranged between the rollers, the push-pull fire-retardant door is arranged in each fireproof shell, an anti-collision lug is arranged on the outer surface of each fireproof shell, a handle is arranged on the outer side of each push-pull fire-retardant door, and a flame-retardant plate is arranged in the main fireproof door. The main fireproof door installed on the fireproof door withtriple protection functions and the fireproof shells at the front end and the rear end of the main fireproof door form a three-layer fireproof structure, fire can that causes damage to the main fireproof door is weakened under blocking of the fireproof shells, and therefore the fire retardance of the fireproof door with triple protection functions is improved.

The invention discloses coix seed diet tea and a preparation method thereof. The coix seed diet tea consists of the following raw materials in parts by weight: 50-80 parts of coix seeds, 5-8 parts ofhoney, 2-5 parts of dandelion, 5-7 parts of Chinese yams, 5-10 parts of hawthorns, 5-10 parts of mint, 4-5 parts of rhizoma atractylodis, 2-5 parts of wild chrysanthemum flos, 10-15 parts of tea leaves, 6-8 parts of folium mori, 4-6 parts of peach flowers, 2-5 parts of roses, 5-8 parts of momordica grosvenori, 5-10 parts of konjaku flour, 5-10 parts of poria cocos, 5-8 parts of radix rehmanniae preparata, 6-7 parts of dogwood and 2-5 parts of a condiment. Due to adoption of the food material, namely the coix seeds with a great deal of dietary fibers, and various healthcare green food materialsand medicinal materials with high-quality proteins, vitamins and minerals, a diet food which is rich in nutrition, good in slimming effect, free of side effect, free of weight regain and good in taste is made.

The invention belongs to the medicine industry, in particular to application of cat's-foot or cat's-foot extract and a method for preparing the cat's-foot extract. A great deal of tests prove that the cat's-foot or the cat's-foot extract has the anticoagulation efficiency and the thrombolysis efficiency. In addition, the inventor also provides two methods for preparing the cat's-foot extract, wherein the method A comprises the following steps of: heating dried cat's-foot with alcohol for reflux, extracting and filtering; adding water to residual medicine dregs after the filtrate is discarded, heating for reflux, extracting and then refiltering; concentrating the filtrate into a paste to obtain the extract; the method B comprises the following steps of: heating the dried cat's-foot with water for reflux, extracting and filtering; concentrating the filtrate into a paste to obtain the extract. The invention has the advantages of simple and easy preparation process; the prepared extract has strong drug action, wide safety range, controllable quality and the like.

The invention relates to a method for preparing an immunity regulatory agent for cattle, poultry and aquatic livestock, which belongs to the biological agent field. The method for preparing aloe vaccine pulvis and oral liquid is characterized in that the aloe and the sheep gall are taken as raw materials and are mixed according to the mass ratio of 10 to 15: 1 to 2; the aloe vaccine pulvis and the oral liquid can clear away heat and toxic material, cooperate with counteracting toxic substance, reduce fire, clear up endotoxin, antisepsis and anti-inflammation, remove blood stasis and detumescence, expel bile, be beneficial to larynx, inhibit and killing virus, control the state of an illness, avoid accompanying infection, and improve the immunity of the organism on cattle, poultry and aquatic livestock; moreover, the water and drug administration is convenient, the absorption rate is high, the range of distribution is wide, no medicine is left, no side effect exists, and the safe range is wide. The preparation method has simple process and convenient operation, can obtain a product with high concentration and high productive rate and does not pollute the environment.

The present invention relates to a Chinese medicine extract, its preparation method and application. In the concrete, it relates to a peucedanum praeruptorum total coumarin extract, its preparation method and application in preparation of medicine for curing hypertension. Said peucedanum praeruptorum total coumarin extract is obtained by using Chinese medicinal material peucedanum praeruptorum through the processes of extraction and separation.

The invention relates to the medicine field, particularly relating to a drug for treating arrhythmia, in particular to an application of Zacopride in preparing a drug for treating the arrhythmia. The invention aims at solving the problems that the present antiarrhythmic drugs have the effect of causing arrhythmia, and IK1 selective agonist has not been discovered at home and abroad so far. The Zacopride is an IK1 selective agonist which is discovered at present for the first time and is used on an antiarrhythmic drug. Used as a drug for treating ischemia-reperfusion arrhythmia, the Zacopride has the similar effect to that of lidocaine, takes effect stably and does not obviously affect the rhythm with wide safety range. In the experiments of arrhythmia induced by ischemia-reperfusion, lidocaine can make the rhythm slower, while the Zacopride has no obvious effect; and when the dosage of the lidocaine is increased by one-third, the antiarrhythmic effect is obviously weakened, while such phenomenon occurs when the Zacopride reaches one hundred times of effective concentration.

The invention belongs to the technical field of cosmetics, and relates to compound ligustrazine ferulate whitening cream and a preparation method and application thereof. In the whitening cream of the invention, plant extracts capable of effectively inhibiting tyrosinase activity, namely ferulic acid and ligustrazine, are served as a whitening agent in preparing the cosmetics. The raw material composition of the moisturizing and whitening cream taking the ferulic acid and the ligustrazine as the whitening agent consists of the following raw materials: emulsifier, grease, TranscutolP, hyaluronic acid, glycerol, the ferulic acid, the ligustrazine, thickener, antiseptic and water. The preparation method comprises the following steps: mixing the emulsifier, the grease, enhancer with the ferulic acid, and melting the mixture through water bath at temperature of 80 DEG C to obtain an oil phase A; dissolving moisturizer, the ligustrazine and the antiantiseptic in the water through hot water bath to obtain a water phase B; adding solution A into solution B, and homogenizing to obtain solution C; and adding the thickener into the solution C after the solution C is cooled to room temperature, and stirring to obtain the whitening cream.

The invention relates to a preparation method of traditional Chinese medicinal material rhizoma polygonati decoction pieces. The preparation method comprises the steps of roughing, washing and moistening, cutting, stir-frying with wine, medicine moistening, drying, screening and packaging. According to the rhizoma polygonati decoction pieces prepared by the method, by adding nutritional juice, theprepared rhizoma polygonati decoction pieces have the effects of tonifying kidney, benefiting blood, moistening lung and engendering liquid, so that the greasiness of rhizoma polygonati is restricted, and the rhizoma polygonati decoction pieces are more beneficial to absorption of a human body; and besides, drying treatment is carried out after steaming, so that the drying time is shortened, theproduction efficiency is further improved, meanwhile the yield is high, the preparation method is suitable for large-scale industrial production, and the prepared rhizoma polygonati decoction pieces are wider in medication safety range and can effectively meet the requirements on the rhizoma polygonati decoction pieces.

The invention discloses PLA microbubbles compounded with Fe3O4-GO-ASA and a preparation method thereof, and belongs to the field of biomedicine. A multi-functional contrast agent integrated targeted radiography and auxiliary thrombus-inhibiting functions and a preparation method thereof are provided. The microbubbles are composed of PLA microbubbles and shells formed by adhering PVA on the surfaces of the PLA microbubbles; the PLA microbubbles are microbubble walls formed by PLA films; Fe3O4-GO-ASA compounds are embedded in the PLA films and on the inner walls of the PLA films; the PLA microbubbles are filled with inactive gas; and the Fe3O4-GO-ASA compounds are obtained by depositing Fe3O4 on the surface of GO and using pi-pi to adsorb and load ASA. The prepared PLA microbubbles can effectively prolong clotting time and prevent thrombus from forming, so that assistant treatment effects of anticoagulation can be achieved.