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4687results about How to "Extended storage time" patented technology

Ultra-long-term freshness preserving system

The invention relates to an ultra-long-term freshness preserving system which can be applied to a refrigerator and installed in a refrigerating chamber of the refrigerator. The system comprises a freshness preserving box, an oxygen enriching membrane, a vacuum pump, a pressure sensor, a control plate and gas delivering pipes, wherein the oxygen enriching membrane is fixed in the freshness preserving box and connected with a gas sucking opening of the vacuum pump by the first gas delivering pipe penetrating through the wall of the freshness preserving box; an exhaust opening of the vacuum pump is led outside a box body for mounting the ultra-long-term freshness preserving system by the second gas delivering pipe; the pressure sensor is fixed to the first gas delivering pipe to sense the pressure in the freshness preserving box, and a signal line is connected with the control plate; and the control plate is connected with and controls the vacuum pump. The invention has ultrastrong freshness preserving function and can effectively improve the storing time of food stored in the refrigerator by being applied to the refrigerator; compared with the refrigeration of a common refrigerator, the invention is expected to be improved by 2-3 times. In addition, the invention can provide high-concentration oxygen for a room, has a plurality of advantages and practical values, and greatly improves the practicability and the healthy performance of the refrigerator.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD

Environment protection type silicon solar cell back electric field aluminum pulp and producing method thereof

The invention relates to a manufacturing method of environment-friendly aluminum paste for a silicon solar battery back electric field. The aluminum paste comprises the following components and contents (weight percentage): 50 to 80 percent of aluminum conducting powder, 1 to 10 percent of crown glass binding agent, 0.05 to 5 percent of trivalent metal organic compound, 2 to 15 percent of organic resin, 10 to 25 percent of solvent and 2 to 10 percent of additive. The manufacturing method of the environment-friendly aluminum paste comprises the preparation of a glass binding agent, the preparation of an organic carrier, the formulation of aluminum paste stock and the processing technique of paste stock. The paste stock researched by the invention can not increase or generate substances which are harmful to human bodies and pollute the environment during the production and processing; the lead content of the paste stock is less than 100 ppm; and the contents of other hazardous substances such as Hg, Cd and the like can satisfy the environmental protection requirements. The aluminum past is applied to electrodes in the silicon solar battery back electric field; and the aluminum past has strong adhesion, good ohmic contact, and high conversion efficiency of a battery through the quick heat treatment in a continuous tunnel furnace.
Owner:WUHAN SUPERNANO OPTOELEC TECH CO LTD

Polycrystal high-nickel positive electrode material used for lithium ion battery and preparation method for polycrystal high-nickel positive electrode material

Disclosed is a polycrystal high-nickel positive electrode material used for a lithium ion battery. The polycrystal high-nickel positive electrode material comprises a base material with a layered structure and a coating layer which is arranged outside the base material and has a spinel structure; the general formula of the base material is LiNi<1-x-y>Co<x>M<y>O<2>, wherein M is at least one kind of Mn and Al; the coating layer is lithium manganese oxide; the mass percentage of the total impurity lithium on the surface of the base material is less than 0.085% based on the total mass percentage of the base material; the preparation method for the positive electrode material comprises the following steps of weighing Ni<1-x-y>Co<x>M<y>(OH)<2>, and mixing with a lithium source, then carrying out thermal treatment, cooling, crushing and sieving to obtain the base material; measuring the content of the residual impurity Li<2>CO<3> and LiOH on the surface of the base material, adding into the metal Mn compound according to the measurement result, and carrying out low-temperature thermal treatment in an oxygen atmosphere to obtain the polycrystal high-nickel positive electrode material used for the lithium ion battery. The polycrystal high-nickel positive electrode material provided by the invention has the advantages of low material alkalinity, low inflatable degree, excellent processing property and cycling performance, and the like.
Owner:HUNAN SHANSHAN NEW ENERGY CO LTD

Water-soluble plant growth nutrient solution and preparation method

The invention relates to a water-soluble plant growth nutrient solution and a preparation method. In the plant growth nutrient solution, the content of small molecular weight water-soluble chitosan accounts for 8-120g/L, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 60g/L, the sum of the content of medium trace elements accounts for 3-30g/L, the content of organic matter accounts for 30-200g/L, the content of plant growth regulator accounts for 0.01-5g/L, and the content of spread penetrating agents is larger than or equal to 0.2g/L; the small molecular weight water-soluble chitosan is obtained through the preparation steps that chitosan is firstly subjected to alkalization of strong base, then subjected to carboxyl chemical modification, degraded through strong oxidant after carboxyl chemical modification and finally neutralized through acid. The water-soluble plant growth nutrient solution integrates the effects of nutritional complement, growth promotion, antibiosis, virus resistance, stress tolerance and the like and has multiple functions and effects of improving soil, preventing hardening, increasing ground temperature, resisting to disease, being tolerant to stress, resisting to continuous cropping, supplementing nutrition rapidly, raising the yield and improving fruit quality and the like.
Owner:诺贝丰(陕西)农业有限公司

High temperature self-repairing conductive silver adhesive and preparation method thereof

The invention provides a high temperature self-repairing conductive silver adhesive. The high temperature self-repairing conductive silver adhesive is prepared from the following raw constituents by parts: 100 parts of epoxy resin, 10-30 parts of curing agent, 10-40 parts of epoxy diluent, 240-990 parts of silver pieces, 3-20 parts of coupling agent and 5-20 parts of self-repairing microcapsule; wherein the self-repairing microcapsule is composed of the following raw constituents by parts: 100 parts of epoxy resin, 8-20 parts of latent curing agent, 30-60 parts of diluents, 0.5-2.5 parts of emulsifying agent, 500-800 parts of nano silver wires, 5-16 parts of coupling agent, 60-120 parts of capsule wall material, 0.5-2 parts of antifoaming agent and 150-900 parts of deionized water. The invention also provides a preparation method of the high temperature self-repairing conductive silver adhesive. The high temperature self-repairing conductive silver adhesive has the positive effects that the repairing efficiency is high, the repairing effect is expanded on the basis of the original conductive network, crack-conductive network double repairing is realized, and the long-term using effect of the conductive adhesive is guaranteed, the cost is saved, and the reliability and service life of the conductive adhesive in high temperature working environment are improved.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Pharmaceutical formulations with the raw material containing panax, ophiopogon root and schisandra fruit, processes for their preparation, the raw material and the quality control method for the prepa

The present invention relates to a medicine preparation with raw material comprising gen-seng, RADIX OPHIOPOGONIS and schizan drin and relates to the methods of preparing and quality control of the invention as well as relates to the quality control method of the raw material comprising gen-seng, radix ophiopogonis and schizan drin. The present invention comprises saponins content of gen-seng, amylase content of gen-seng, saponins content of radix ophiopogonis and neolignan content of schizan drin. Each unit dosage of preparation comprises Rg1 and Re for 0.08 mg-12 mg, polysaccharide of gen-seng for 1mg-460mg, general saponins for 5 mg-800 mg and Schisandrin for 0.036mg-6mg. a medicine functioning as cooperation can be or can not be added in the present invention which can be any acceptable medicine preparation type comprising oral taking solid preparation, oral taking semi-solid preparation, oral taking liquid preparation and injection. The present invention also provides the quality control method of gen-seng, RADIX OPHIOPOGONIS and schizan drin as well as the quality control method of the present invention.
Owner:天津市轩宏医药技术有限公司 +1
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