37results about How to "No existence" patented technology

The invention discloses a processing method for preparing purely natural health-caring black sesame oil by using black sesame as the raw material. The method of the invention comprises the steps as follows: colour selecting of the black sesame, washing by clean water, centrifugal dewatering, drying, smoking and dedusting, grinding, stirring with water, separating, depositing, sterilizing and bottle filling; as the stone grinding process is adopted, no high temperature is generated during the grinding process of the invention, thus completely preserving the nutrition composition of the black sesame, generating no glutin or little glutin and generating more oil correspondingly; during the deposition process, diatomite is not added, the black sesame is statically put hermetically under normal temperature; the temperature preservation disposal is not required and the energy resource is not wasted; in the whole processing, no matters are added, thus preserving the unique fragrance and the nutrition composition of the black sesame oil. Compared with the prior art, the processing method of the invention has high yield, the produced black sesame oil can preserve the nutrition composition and the unique fragrance of the black sesame to the utmost extent and has no poor impurities and wastes no energy resource.

The invention discloses a preparation method of a three-dimensional-ordered macroporous (3 DOM) titanyl 'lithium ion sieve'. In the method, a polymethacrylic acid methyl ester colloid crystal template is synthesized; precursor solution of lithium salt and titanium salt is used to fill in the colloid crystal template; after sucking filtration, drying, two stage constant temperature calcination, acid pickling and re-drying, the 3 DOM titanyl 'lithium ion sieve' is obtained. The invention has the following beneficial effects that: 1, by the 3 DOM structure control of a material, the proportion of the activated adsorbed phase of the material of the ion sieve is improved obviously, thereby strengthening inner diffusibility in ion transferring, and being a double pore canal function material simultaneously having a macropore and a micropore; 2, the adsorption quantity of the lithium ion is high; the maximum adsorption quantity is over 40 mg/g and larger than the prior documentary adsorptive value, when the pH value of the solution is equal 8; 3, the structure of the titanyl 'lithium ion sieve' is stable; due to the absence of the trivalent titanium ion, an adsorption-desorption process is free of solution loss, thereby being better than a manganese oxide 'lithium ion sieve'; 4, a colloid crystal template method and a sol-gel method are combined, thereby being a novel method for preparing the material of the titanyl 'lithium ion sieve'.

The invention relates to a novel optical electrolytic cell structure, and particularly relates to an improvement on the basis of a three-electrode system, with a membrane electrode assembly being applied therein and an intermediate membrane layer being a solid polymer alkaline membranes. The device can directly perform on-line separation on hydrogen and oxygen produced by photoelectrocatalysis of water, prevents after-treatment processes of a conventional separation device for the hydrogen and oxygen, increases security of a system and greatly saves energy consumption. Besides, the structure has good stability. The novel optical electrolytic cell structure is compact in structure and compared with the three-electrode system, size is greatly reduced under the same illumination area.

The invention relates to an African swine fever virus detection reagent kit for environment samples and a detection method, and belongs to the technical field of biology. The African swine fever virusdetection reagent kit for environment samples provided by the invention comprises specific primers AP72-F ( SEQ ID NO:1 ) and AP72-R ( SEQ ID NO:2 ), and a TaqMan probe AP72-P ( SEQ ID NO:3 ), wherein 5' end marked report fluorescent dye of the probe is FAM, and a 3' end marked fluorescent quenching group is BHQ-1. The African swine fever virus detection reagent kit for environment samples and the detection method provided by the invention can be widely used for detecting various environment samples in breeding environment, the limitation for detecting a single environment sample is broken, the sensitivity of the detection method reaches 10copise/[mu]l, the detection of African swine fever viruses of the environment samples does not have a cross reaction with various viruses, and the African swine fever virus detection reagent kit for environment samples and the detection method can be widely suitable for real-time monitoring of rehabilitation and breeding of pigs suffering from African swine fever.

The invention discloses a method for biologically synthesizing gamma-aminobutyric acid, which uses the pediococcus pentosaceus as the strain, and converts the externally added glutamic acid or monosodium glutamate through fermentation engineering technology, cell transformation method and enzyme engineering technology to produce high content gamma-aminobutyric acid (conversion liquid gamma-aminobutyric acid content reaches 1-30%). The method belongs to the biological technical field, doesn't need high temperature, high pressure reaction condition or toxic harmful raw materials, has the advantages of high maneuverability and little by-product, and the pediococcus pentosaceus is a food grade microorganism with high safety, thus applying to industries such as chemical industry, food, forage or medicine after purifying.

The invention relates to a formaldehyde-free building adhesive and a preparation process thereof, and belongs to the field of adhesives. The adhesive comprises the following components by weight: 100g of polyvinyl alcohol (PVA) and 5 to 35g of dialdehyde, wherein the PVA has the polymerization degree of more than 1,700 and the hydrolysis degree of over 98 percent, and is one of PVA-1799, PVA-2099, PVA-2499 and PVA-2699. The molecular weight is improved, the viscosity is increased, adhesion to a base material is improved, the water resistance is improved, free formaldehyde does not exists, and the adhesive is nontoxic to environment and has certain bactericidal effect.

The invention discloses a preparation method of an amphipathic comb-shaped polymer phase change energy storage material. The preparation method comprises the following steps: (1) reacting poly(oxyethylene) alkyl ether or a hydroxyl-containing compound with acyl chloride and an acid-binding catalyst to obtain an acyl active group-containing compound; (2) adding a thioacetate of active metal into an ethanol solution of the acyl active group-containing compound to obtain a crude substitution product, washing the crude substitution product and drying to obtain a substitution product; (3) adding the substitution product into an ethanol solution of sodium ethylate to have a reaction to obtain a sulfhydrylated product; (4) adding the sulfhydrylated product into a polyepichlorohydrin solution to obtain a reaction product, cooling the reaction product, and washing and dialyzing to obtain the amphipathic comb-shaped polymer phase change energy storage material. The preparation method is simple in polymerization process; the prepared amphipathic comb-shaped polymer phase change energy storage material has phase change property and controllable amphipathicity, is relatively high in yield and purity, and does not contain micromolecular matters.

The invention relates to a method for preparing a fine-crystalline and high-strength magnesia alumina spinel transparent ceramic. The method comprises the following steps of (1), uniformly mixing magnesia alumina spinel powder and a sintering additive, so as to obtain raw material powder, wherein the sintering additive is RE2O3 and/or a precursor which can be decomposed to obtain the RE2O3, wherein RE is selected from at least one of rare earth elements; (2), subjecting the obtained raw material powder to compression molding, so as to obtain a ceramic biscuit; (3), biscuiting the obtained ceramic biscuit for 2 to 10 hours at 600 to 1,100 DEG C, then carrying out pre-sintering treatment for 4 to 8 hours at 1,350 to 1,650 DEG C, and finally carrying out hot isostatic pressing sintering for 1 to 6 hours under 120 to 200MPa and at 1,450 to 1,900 DEG C, so as to obtain the magnesia alumina spinel transparent ceramic.

The invention discloses a method for producing gamma-aminobutyric acid. The method is to crush the bacterium capable of expressing glutamic acid decarboxylase, immobilize it with sodium alginate to form immobilized glutamic acid decarboxylase, and make the immobilized glutamic acid decarboxylase and glutamic acid or glutamine The acid salt is subjected to an enzyme-catalyzed reaction in the reaction column to obtain γ-aminobutyric acid. The method of the invention utilizes biologically active enzymes, only needs to provide suitable buffer conditions, less substances in the conversion system, less by-products, no harmful substances, and is safe and reliable as raw materials for food and medicine. The entire technological process consumes less material and energy, generates less waste, and is conducive to environmental protection.

The invention discloses a method for utilizing a thermally induced phase separation technology to prepare porous ceramic. The method comprises the following steps of: utilizing easily-volatilized benzoic acid BA as a pore forming agent; dissolving the pore forming agent into absolute ethyl alcohol; utilizing the thermally induced phase separation technology to control the quantity and the shape of the pore forming agent; and utilizing a traditional slip casting molding method to prepare a ceramic blank. According to the method disclosed by the invention, a phase separation temperature, a temperature reduction speed and a solution viscosity are controlled to control the quantity, the size and the shape of the phase separation pore forming agent, so that the size of the porosity and the pore shape of the porous ceramic are controlled; and the method has the advantages of controlling the shape of an air pore and the size of the air pore, and can carry out low-temperature hole formation.

The invention relates to a decoloration and deodorization method of marine active collagen peptide enzymatic hydrolysate. According to the method, medicinal and edible auxiliaries such as ginger, fennel, anise, pepper, orange peel, longan and the like are added to well-prepared marine organism collagen peptide enzymatic hydrolysate, and a mixture is heated to 50-55 DEG C and dissolved for 3-4 h, pH of the enzymatic hydrolysate is adjusted by a NaOH solution with concentration of 0.05mol/L to range from 5 to 6, powdery activated carbon accounting for 0.3%-0.6% of the volume of the enzymatic hydrolysate is added while stirred, the mixture is absorbed for 40-45 min at the temperature of 50-55 DEG C and subjected to centrifugation for 20-40 min by a disk centrifuge at the speed of 5,000-6,000 rpm after decoloration and deodorization, activated carbon is removed, and supernatant is taken. According to the method, the process is simple, the operation is easy to implement, the treatment process is mild, the safety is high, and economy and practicability are realized; treated enzymatic hydrolysate has better color, luster and smell, the protein loss ratio is 4.2%, and the enzymatic hydrolysate can be widely applied to the industries of health care foods or medicine and the like.

The invention relates to a novel dissolving agent for octadecylamine, and belongs to a dissolving agent. The dissolving agent consists of following raw materials in parts by volume: 95-97 parts of water, 0.9-1.1 parts of glacial acetic acid, 0.9-1.1 parts of ethanol and 1.8-2.2 parts of sulfated oil. The dissolving agent has the advantages that: the dissolving agent has high dissolving property for the octadecylamine; a stirring motor is not used in a dissolving process; and the dissolved liquid is milk white, has high flowability, has no granular substances, is easy to store and does not demix.

The invention relates to EVA resin fouling chemical decomposition scavenging agent A and B liquid and a using method thereof. The A liquid is prepared from 5-10 percent of potassium permanganate, 2-5 percent of trichloroisocyanuric acid, 5-10 percent of sodium hydroxide, 0.5-1 percent of heterogeneous alcohol ether, 0.5-1 percent of fatty alcohol polyoxyethylene ether and 73-87 percent of water. The B liquid is prepared from 30-40 percent of trichloroethylene, 20-40 percent of methanol, 3-5 percent of a water-in-oil emulsifier and 15-47 percent of water. When the EVA resin fouling chemical decomposition scavenging agent A and B liquid is used, the A liquid is used firstly, and then the B liquid is used, wherein the A liquid mainly has the action of oxidative decomposition, the B liquid mainly has the action of dissolution scavenging, the two of the A liquid and the B liquid are mutually matched to effectively lower the viscosity and the toughness of fouling, and the purpose of lightly and rapidly scavenging the fouling is achieved; and in addition, the decomposition scavenging agent is safe in use, simple to use and operate and high in washing cleanliness.

The invention relates to the field of spatial light transmission equipment, in particular to a laser-based space optical communication device. The laser-based space optical communication device comprises a light emission module, a light receiving module and a light transmission module, the light emission module comprises an amplification driving circuit, a light power monitor, a direct current bias and a light emitter. The light emitter is connected with the amplification driving circuit, the light power monitor and the direct current bias; the light transmission module comprises an optical conversion module and an optical detection module. The light receiving module comprises a light receiving assembly, a bias voltage circuit, a signal detection circuit and an amplification circuit. Thelight receiving assembly is connected with the bias voltage circuit, the signal detection circuit and the amplification circuit. Due to the fact that the one-way transmission performance of the laseris visual and visible, no hidden reverse link exists, and due to the fact that a laser is good in electromagnetic compatibility, high in strong electromagnetic interference resistance and the like, the spatial light communication module based on the laser has very high safety.

The invention discloses a process for preparing fingered citron wine with no bitterness and astringent, which comprises Buddha's hand, edible wine with concentration of 35-65%, food grade beta-cyclodextrin or beta-cyclodextrin series derivatives and polyethylene glycol 6000.

Aiming at the technical problem that aqueous solution of HF, serving as etching solution, cannot etch a bismuth-based thin film material, nor ensure the accuracy of patterns, the invention provides etching solution for use in the wet etching of bismuth-based thin films, belongs to the technical field of materials and relates to micro machining technology, in particular to etching solution for use in a photoetching process. The etching solution is mixed solution comprising HF serving as an etching agent, NH4F serving as a complexing agent and H2O serving as a diluting agent in a molar ratio of 1: (0.5-1.5): (1.26-5.5). To enhance the etching effect of the etching solution on the bismuth-based thin film material and increase etching speed, HNO3 serving as an assistant can be added into the etching solution, wherein the ratio of the HF to the NH4F to the HNO3 to the H2O is 1: (0.5-1.5): (0.36-1.6): (1.26-5.5). The wet etching of the bismuth-based thin film material by the etching solution has the advantages of clean etched surface, clear patterns, high precision and no residual precipitate. After the HNO3 assistant is added, the speed of the wet etching of the bismuth-based thin films is increased, and the etching process and the pattern precision can be controlled effectively.

The invention relates to a method for synthetizing a DSD acid (4,4'-diamino-2,2'-stilbenedisulfonic acid) oxidation intermediate by a water phase pressurization method. The method comprises the following steps that (1) raw materials of nitrotoluene o-sulfonate and catalysts are added into a reaction kettle according to a mass ratio of 1 to (0.001 to 0.01); water with the weight being 5 to 6 times of that of the raw materials is added; then, alkali is added, so that the concentration of the alkali in the reaction kettle reaches 1.2 to 2.0mol/L; oxygen gas, air or mixed gas of oxygen gas and nitrogen gas is introduced, so that the pressure reaches 0.01 to 0.5MPa; (2) water with the weight being 10 to 12 times of that of the raw materials is added; the alkali is added, so that the concentration of the alkali in the kettle reaches 0.5 to 1.0 mol/L; then, the temperature is raised to 75 to 85 DEG C; a double-bond compound is synthetized through oxidation. The method has the advantages that a step-by-step method is used; firstly, a single-bond compound is synthetized at low temperature; then, the single-bond compound is dehydrogenized to synthetize the double-bond compound; the possibility of by-product formation due to bond breaking of the double-bond compound in a high-temperature state for a long time is reduced.