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144 results about "Chemical free" patented technology

Chemical free or chemical-free is a term used in marketing to imply that a product is safe, healthy or environmentally friendly because it only contains natural ingredients. From a chemist's perspective, the term is a misnomer, as all substances and objects are composed entirely of chemicals and energy. The term chemical is roughly a synonym for matter, and all substances, such as water and air, are chemicals.

Method for co-production of oligose and dietary fiber through wheat bran fermentation

The invention relates to application of a microbial fermentation method in co-production of wheat bran oligose and dietary fiber. The invention aims to developed and utilize the wheat bran comprehensively; an efficient biological process route is adopted to deeply processing wheat bran, and the microbial fermentation method is used to prepare wheat bran dietary fiber and functional oligose simultaneously. The microbe used in the method refers to a single strain, pullularia pullulans or mixed strains of aureobasidium pulluans and agrocybe aegerita; in fermentation of wheat bran, substances in the wheat bran, such as starch and protein, can be taken as nutritional ingredients for the growth of microbes, when digesting the substances, the microbes can generate xylanase so as to hydrolyze wheat bran hemicellulose to generate oligose and prepare dietary fiber simultaneously. According to the method, the research and development idea of developing a single product is broken through, the rate of multipurpose utilization of the resource is high, the production costs is low, chemical substance residual does not exist, the environment is not polluted, a new processing technology model of 'ecological, low-carbon and efficient circulating' is formed, and the additional value of the wheat bran product is increased.
Owner:YANCHENG INST OF TECH

Automatic chemical feeding system and method for plant protection unmanned aerial vehicle

ActiveCN106184758AAvoid situations where there is no medicineGuaranteed to workGround installationsLaunching weaponsUncrewed vehicleComputer module
The invention discloses an automatic chemical feeding system and device for a plant protection unmanned aerial vehicle. The system comprises an airborne subsystem of the plant protection unmanned aerial vehicle and a ground base station; the airborne subsystem comprises a liquid level detection module and a chemical feeding control module; the output end of the liquid level detection module is connected with the chemical feeding control module; the liquid level detection module is used for detecting the liquid level of a chemical box of the plant protection unmanned aerial vehicle, and the chemical feeding control module is used for controlling the plant protection unmanned aerial vehicle to return to the ground base station when the liquid level of the chemical box of the plant protection unmanned aerial vehicle is lower than a preset value; the ground base station comprises an unmanned aerial vehicle parking detection device, a base station control center and a chemical feeding device; the output end of the unmanned aerial vehicle parking detection device is connected with the base station control center, and the output end of the base station control center is connected with the chemical feeding device. According to the automatic chemical feeding system and device for the plant protection unmanned aerial vehicle, real-time detection on the liquid level of the chemical box of the plant protection unmanned aerial vehicle can be achieved, when the liquid level in the chemical box is lower than the preset threshold value, the unmanned aerial vehicle is controlled to return to the base station for automatic chemical feeding, and the situation of chemical-free operation of the plant protection unmanned aerial vehicle is avoided.
Owner:超农力浙江智能科技有限公司

Preparation method of novel biological deodorization bacterium agent

The invention discloses a preparation method of a novel biological deodorization bacterium agent. The preparation method comprises the following steps: a, selecting strains: selecting the following microorganism strains according to a weight ratio: saccharomycetes, bacillus subtilis, bacillus licheniformis, lactobacillus plantarum and bacillus megaterium; b, carrying out primary culture; c, carrying out secondary culture; d, uniformly mixing; e, freezing and drying in vacuum; f, selecting 300 to 320 parts of activated carbon, 250 to 280 parts of diatomite and 230 to 270 parts of zeolite according to a weight part ratio; crushing until the granularity is 26 to 35 meshes; sufficiently and uniformly mixing with solid-state bacterium powder to prepare the novel biological deodorization bacterium agent. The preparation method disclosed by the invention has the advantages that organic matters, which emit an undesirable odor, are composted and fermented through a microorganism strain, and substances, which emit the undesirable odor, are transformed into odorless substances, so that the source of the undesirable odor is solved radically and a very good deodorization and purification effectis realized; the novel biological deodorization bacterium agent has no pollution to the environment, no residues of chemical substances and is very environmentally friendly.
Owner:湖北吾尔利生物工程股份有限公司

Treatment method for jointly performing oxidation of trivalent arsenic and reduction of hexavalent chromium by using organic acid

The invention relates to the field of sewage treatment, and particularly relates to a treatment method for jointly performing oxidation of trivalent arsenic and reduction of hexavalent chromium by using an organic acid. The method comprises the following steps: adding micromolecular organic acid with a double-carboxyl structure to a to-be-treated water body containing trivalent arsenic As(III) and hexavalent chromium Cr(VI), and adjusting the pH value, so as to trigger oxidation of arsenic, reduction of chromium and transformation into carbon dioxide from organic acid in the water body. Synergistic treatment of toxic substances, namely the trivalent arsenic and the hexavalent chromium is achieved by using these micromolecular organic acids existing in the water body, finally the three harmful substances are transformed into the products which are smaller in toxicity, or completely harmless, self-cleaning of the water body is achieved, in addition, no chemical reducer or oxidant is added, the treatment method is free of input of an external energy source, free of adding of chemical substances, free of secondary pollution, free of sediments or sludge, environmental friendly, and free of harm.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Phase field analysis method for simulating phase change of [Gamma]-TiAl alloy under non-isothermal condition

The invention belongs to the technical field of phase field methods, and discloses a phase field analysis method for simulating the phase change of a [Gamma]-TiAl alloy under a non-isothermal condition. Through the thermodynamics and dynamics parameters of an alloy system, an initialization condition is determined; according to the crystal structure of an intermetallic compound in the alloy, a sublattice model is used for constructing a chemical free energy model; meanwhile, a gradient descent method is used for calculating a corresponding atomic occupancy ratio; a corrected potential well function is used for coupling of a relationship between the chemical free energy of each phase and a structure field variable [Eta]; meanwhile, elastic energy is added to construct a system free energy function; the constructed function is substituted into a phase field equation; the result values of the structure field variable and an ingredient field variable are calculated; and then, visualizationprocessing is carried out to obtain a corresponding organization evolution diagram, and the results are analyzed. By use of the method, grain evolution processes at different temperatures and tissueevolution rules under different cooling rates can be simulated, and a reference is provided for researching the phase change process of the intermetallic compound.
Owner:SOUTH CHINA UNIV OF TECH

Method of on-line quickly detecting total anti-oxidizing property of sample

The invention belongs to the technical field of detection and analysis and relates to a method of on-line quickly detecting total anti-oxidizing property of samples through high performance liquid chromatography (HPLC) and a free radical detection system. The high performance liquid chromatographic analyzer includes, in a successively connected manner, a sample injector, a quaternary gradient pump, a chromatographic analytic column, a column oven and a photodiode array detector. The free radical detection system includes a free radical reaction module, a temperature controlling box, a high-pressure pump and an ultraviolet visible light detector. The free radical reaction module is connected to the high performance liquid chromatography. The temperature controlling box is used for controlling the temperature of the free radical reaction module. The high-pressure pump is connected to the free radical reaction module. The free radical reaction module is connected to the ultraviolet visible light detector. A C18 reversed-phase chromatographic column is employed as a chromatographic analytic column and is 20*3.9 mm and 5 [mu]m in model. The free radical belongs to chemical free radicals. The method is complete and beautiful in peak pattern without trailing phenomenon, is accurate in test result, is quick, is high in selectivity and is high in sensitivity.
Owner:SOUTHWEST UNIVERSITY
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