70results about How to "High economic and practical value" patented technology

Photocatalyst preparation method for glass fiber net carried TiO2 fixed membrane belongs to degradation pollution technique field. Use flexible glass fiber net after heat treatment as carrier; take butyl titanate, alcohol, water and nitric acid as volume share of 1:3~12:0.02~0.2:0.01~0.1 to prepare sol-gal liquid; use soakage-pulling method to make hard coat; after airing, finish hydrolysis and polycondensation; finally, bake to remove organic and make TiO2 fastness; repeat process and obtain TiO2 fixed membrane with determined thickness. It is easy to operate and produce in large scale; the product has high purity and can be used repeatedly; the TiO2 fixed membrane photocatalyst of this invention has high activity, good durability, and large specific surface; the membrane module is convenient to assemble, with cheap price and wide application both for drink water advanced treatment, pretreatment and terminal treatment for toxic harmful high content hard-degradation organic waste water, and treatment for polluted air.

The invention discloses a new technique for synthesizing Leuprorelin by the combination of a solid phase method and a liquid phase method, which comprises the following steps of: 1) using Fmoc-Pro-OH and HMPB-AM resin as starting material, and obtaining Fmoc-Pro-HMPB-AM resin; 2) coupling in sequence and synthesizing Leuprorelin precursor peptide-HMPB-AM resin with full protective lateral chains; 3) cutting the resin and obtaining Leuprorelin precursor peptide with full protective lateral chains; 4) processing the Leuprorelin precursor peptide with full protective lateral chains with methylamine, and obtaining Leuprorelin with full protective lateral chains; 5) removing the protective groups of the lateral chains of Leuprorelin with full protective lateral chains, and obtaining the crude product of Leuprorelin; and 6) conducting separation and purification and freeze drying to the crude product of Leuprorelin, and obtaining refined Leuprorelin peptide. The technology has the capability of large-scale production, easy operation, stable technique, low production cost and total yield of more than 50 percent, and has considerable economical and practical value and wide application prospect.

The invention relates to a method for preparing Nesiritide. In the method, HMPB-AM resin is taken as an initial raw material, amino acids with Fmoc blocking groups are sequentially connected in a solid phase synthesis way under the action of condensing agent and transpeptidase reagent to obtain side chain full-protection linear Nesiritide HMPB-AM resin; linear Nesiritide raw peptides are obtained by schizolysis, Nesiritide raw peptides are obtained by liquid phase oxidation, and Nesiritide fine peptides are obtained by purification, salt transfer and freeze drying. The invention has the advantages of simple operation, easy post treatment, few raw materials, low cost, high yield coefficient, and the like, thereby having considerable economy and utility value and also having extensive application prospect in the polypeptide drug design synthesis field.

The invention provides an insulation shielding cover for electric power detection. The insulation shielding cover is used for shielding a cross arm for live working and comprises a cross arm cover body, two wire fixing mechanisms, an insulation baffle plate and a detection device, wherein the cross arm cover body includes a first body and a second body; the two wire fixing mechanisms are respectively, oppositely and fixedly disposed on an outer wall of the first body; the insulation baffle plate includes two fan-shaped plate bodies which are located on the same plane; and the detection device includes an alarm, a voltage acquisition module which is disposed inside a groove, and a controller which is electrically connected with the alarm and the voltage acquisition module. According to the insulation shielding cover, a second body is slidably disposed in the first body in a sleeved manner, the second body can be stretched out and drawn back in the first body, the length of the shielding cover is adjusted according to the length of the cross arm so that a single shielding cover can be suitable for cross arms of various sizes; meanwhile as the detection device is disposed, the magnitude of voltage borne by the cross arm is detected at any time; and when the magnitude of voltage exceeds the safety value borne by a human body, an alarm device gives an alarm in time, thereby improving the safety of the shielding cover.

The invention provides an electric heating air filtration element and a low-energy-consumption high-temperature disinfection and sterilization device for air. The electric heating air filtration element comprises high-temperature-resistant primary filter cotton, a metal aluminum net, an insulating electric heating wire and a high-temperature-resistant efficient air filtration element, wherein themetal aluminum net is mounted at an air inlet of the high-temperature-resistant efficient air filtration element and is attached to an aluminum-foil paper partition plate of the air filtration element; the insulating electric heating wire is fixed on the metal aluminum net, and the primary high-temperature-resistant filter cotton covers the surface of the metal aluminum net; and two ends of the insulating heating wire are connected with a working power supply. The insulating electric heating wire in the electric heating air filtration element can heat the primary filter cotton and the high-temperature-resistant efficient air filtration element at the same time in a power-on stage, and bacteria and viruses attached to the primary filter cotton and the high-temperature-resistant efficient air filtration element are subjected to high-temperature disinfection and sterilization; and the sterilization device achieves low-energy-consumption high-efficiency air sterilization and purification effects through filtering and sterilization control at different time periods.

The invention relates to a multi-purpose flammable honeycomb briquette forming block, in particular to a high-efficiency, energy-saving and environmental protection flammable honeycomb briquette forming block for two-dimensional compact array and three-dimensional stack use, and larger-scale combustion operation. The multiple-purpose flammable honeycomb briquette forming block is set out to two aspects of combustion component and outline structure, overall improves the combustion performance of the honeycomb briquette, creates a novel honeycomb briquette forming block, and is characterized by easy combustion, light weight, high efficiency, environmental protection and the like. In addition, the multiple-purpose flammable honeycomb briquette forming block has the advantages of simple material drawing, convenient preparation, low manufacturing cost, wide application scope and market application prospects, and higher economic practical value.

The invention relates to the field of medicinal chemistry, and discloses a two-step method for preparing norathyriol. The method comprises steps that: 2-bromine-4,5-dimethoxybenzoic acid is added to 1,2-dichloroethane; thionyl chloride is added to the mixture, and the mixture is heated and refluxed for 1 hour; zinc chloride and 3,5-dimethyoxy phenyl hydroxide are added to the mixture, the mixtureis stirred, and are heated for 2 to 4 hours under a temperature of 40 to 80 DEG C; the 1,2-dichloroethane solvent is removed through reduced-pressure distillation; 10% to 30% of a sodium hydroxide solution by mass is added to the mixture, and the mixture is heated and refluxed for 2 to 3 hours, such that 1,3,6,7-xanthone tetramethoxide is produced; 1,3,6,7- xanthone tetramethoxide is added to an ethylene glycol solvent, and hydrochloric acid is added to the mixture; the mixture is heated and refluxed for 3 to 5 hours, such that norathyriol is obtained. Compared to prior arts, the preparation method provided by the invention has advantages of short synthetic route, less step, simple operation, and high yield. The raw materials adopted in the method are cheap and easy to obtain. The processes are safe, and bring low toxicity. The method is environment friendly, and is suitable for industrialized productions. The method provides high economical and practical values.

The present invention relates to a powdered nutritional food, and especially relates to a powdered nutritional food taking six plant fruits of purple rice, sesame, peanuts, black beans, lotus seeds, and Chinese chestnuts as main materials, taking five plant fresh leaves of tea, mint, bitter thorn core, stephania delavayi diels, and coriander herb as auxiliary materials, and being able to take account of two purposes of daily diet and brain health and body strength. According to the present invention, based on the traditional Chinese medicine theory, the product-related food materials are mixed and matched by reasonable proportion, rigorous processes and delicate operations to form three modules of dried fruits, tea vegetables and spices, thus each beneficial ingredient is fully played, and a new nutritional effect is formed. The resulting product is rich in a plurality of nutrients needed by human bodies, has effects of strengthening brain and body, conditioning spleen and stomach, and relaxing bowel, is a healthy food being convenient for diet and therapy and capable of being vegetable dish or meat dish, can be widely applied for daily foods of general population and diet recuperation needs of frail population, and has broad market prospects and high economic values.

The invention discloses a nanometer Ni-P conductive ink and a preparation method thereof, belongs to the field of nanometer materials. The conductive ink comprises one or more of amorphous nano Ni-P powder, water, ethanol and ethylene glycol, one or more of oleic acid, polyethylene glycol and OP-10 emulsifier; the mass content of the amorphous nano Ni-P powder is 10-30%; and the grain size is 30-85 nm. The preparation method orderly comprises the following steps of: preparing nickel salt and sodium hypophosphite into a water solution according to the molar ratio of 0.3; adding the prepared reaction mixing solution into a nucleation revulsant to trigger reaction and disperse; centrifuging, edulcorating and drying the reacted mixing solution to prepare the amorphous nano Ni-P powder; and preparing the conductive ink according to the ratio, wherein the nucleation revulsant is sodium borohydride and/or potassium borohydride. The invention provides the nano Ni-P conductive ink with low price and excellent performance, and the preparation method thereof.

The invention relates to a dietotherapy product, especially to a simple dietotherapy product able to radically cure human body damp-heat. Based on traditional Chinese medicinal theories, the product of the invention carefully chooses 12 food materials of red bean, Coix seed, longan, jujube, granulated sugar, lotus seed, lily, ginger, brown sugar, black soya bean, Gorgon fruit and refined salt. By means of strict proportion and scientific technology, two large parts: a main module and an optional module, can be formed in a manner of evolving new things from the old, and a simple dietotherapy product with strong pertinence and for radical cure of damp-heat can be generated through reasonable collocation. The product of the invention has the advantages of substantial effect and convenient eating, and has obvious functions of nourishing blood and the middle-jiao, promoting urination and clearing damp, as well as regulating the spleen and stomach, looseing the bowel to relieve constipation, promoting blood circulation, etc. Long-term eating of the product in the invention can reach the effects of radically curing damp-heat, building up body and prolonging life span, so that the product is widely suitable for diet recuperation of the elderly, the weak, women and children. Besides, characterized by easily available raw materials, simple preparation and low cost, etc., the product provided in the invention has broad market prospects and extremely high economic value.

The invention relates to a pretreatment strengthening method of recycled aggregate and a preparation method of recycled concrete. The pretreatment strengthening method comprises the following steps: firstly, washing the recycled aggregate with low-pressure water, naturally airing the material, soaking in an aggregate strengthening solution for 6-12 h, taking out the material, and naturally airing the material to obtain the strengthened recycled aggregate; the preparation method of the recycled concrete comprises the following steps: sequentially standing, precipitating and filtering a washing solution obtained after washing to obtain a regenerated solution; and stirring the regenerated liquid, cement, EVA rubber powder, a polycarboxylate superplasticizer and reinforced regenerated aggregate to obtain the regenerated concrete. Compared with the prior art, the strength of the recycled aggregate can be improved, the performance of the prepared recycled aggregate concrete can be effectively improved, and the application range of the recycled aggregate can be expanded.

The invention relates to a method for microwave-ultrasonic-assistant hydrolysis extraction of Caesalpinia spiosa pod gallic acid. The method comprises adding deionized water into Caesalpinia spiosa pod powder as a raw material, carrying out reflux condensation, carrying out filtration to obtain a filtrate, adding an ion exchange resin catalyst and an antioxidation reagent into the filtrate and carrying out microwave-ultrasonic-assistant heating extraction to obtain gallic acid, wherein in heating, under the action of ionic liquid catalysis, tannic acid is decomposed to form gallic acid so that a gallic acid yield is effectively improved. The ion exchange resin is convenient for recovery, can be recycled, is economic and environmentally friendly, is suitable for large scale production and has high economic and practical value.

The invention provides an intelligent efficient vegetable irrigation system. The system comprises a water pump, a water storage system, a water pipe, vertical columns and nozzles mounted on the vertical columns. The water pump is connected with the water storage system and the vertical columns through the water pipe, the water pump is connected with a relay for controlling on and off of the water pump, and the relay is connected with a control unit. The intelligent control based intelligent efficient vegetable irrigation system has advantages of high irrigation efficiency, safety and reliability in use and effectiveness in cost saving. By an intelligent control mode of the irrigation system, working pressure is greatly relieved for workers, production cost is saved, and great economic and practical values are achieved.

The invention discloses a mobile terminal, which comprises a front shell and a rear shell, wherein the front shell is provided with an electromagnetic buckling device, and the rear shell is provided with a buckling slot; when the electromagnetic buckling device is switched between a power-on state and a power-off state, the electromagnetic buckling device changes between a locking position and an unlocking position; at the locking position, the electromagnetic buckling device is buckled in the buckling slot, so as to fix the front shell and the rear shell; and at the unlocking position, the electromagnetic buckling device is detached from the buckling slot. The mobile terminal can easily realize the disassembly of the front shell and the rear shell, has high disassembly efficiency, can save the disassembly time, can reduce the risk of components being damaged when in need of maintenance, reduces the maintenance cost, and has high economic and practical values.

The invention discloses a nut cracker. The nut cracker comprises a first solid hemispherical shell and a second solid hemispherical shell, wherein the first hemispherical shell comprises a handle, a first groove and a plurality of second grooves, and the first groove and the plurality of second grooves are partially overlapped to form an incomplete sphere; the second hemispherical shell comprises a third groove, fourth grooves and a pressure applying device, wherein a first through hole is formed in the middle of an arc-shaped surface of the third groove; the pressure applying device comprises an inner rod, an outer rod and a rotation shaft, a plurality of connecting bars are rotatably connected to the outer wall of the outer rod, and downward extend out of the rotation shaft slantwise and form an included angle of 20-70 degrees with the outer rod, pressure heads are arranged on the other ends of the connecting bars, the surfaces of the sides, provided with metal teeth, of the pressure heads face the containing space of nuts, and the nuts are squeezed under the downward movement of the outer rod, so that the shells of the nuts are squeezed to be broken. The nut cracker can break shells of a plurality of nuts, and has the advantages of being simple in structure, safe and convenient, and high in work efficiency.