41results about How to "Alleviating deprivation" patented technology

The invention relates to a chloride ion penetration-resistant concrete doped with waste glass. The chloride ion penetration-resistant concrete doped with the waste glass comprises the following raw materials: 10-30 wt% of a cementing material (cement, glass micropowder and silica fume), 3-8 wt% of fine glass aggregate, 25-40 wt% of natural sand, 35-50 wt% of gravel, 5-15 wt% of water, and an admixture, based on the total mass of 100%, wherein based on the total mass of 100%, the cementing material (cement, glass micropowder and silica fume) comprises 70-85 wt% of cement, 10-20 wt% of glass micropowder and 5-10 wt% of silica fume. The chloride ion penetration-resistant concrete doped with the waste glass is prepared by the following steps: dosing the prepared glass micropowder, fine glass aggregate, gravel, cement and silica fume in proportion, adding into a mixer, and premixing for more than 20 s; adding the weighed admixture which is 0.5-1.5 wt% of the total mass of the cementing material, and water into the premix in a water-binder ratio of 0.38-0.55, and mixing for more than 120 s. The fine glass aggregate and the glass micropowder are prepared from the waste glass.

The invention provides an assisted teaching system for musical instrument playing. The assisted teaching system for musical instrument playing comprises an acquisition subsystem, a central processing subsystem and a feedback subsystem. The acquisition subsystem is used for collecting sounds and changes of chords or keys of a musical instrument as well as limb actions of a user. The central processing subsystem is used for comparing the collected sounds and changes of the chords or the keys of the musical instrument as well as the collected limb actions of the user with standard values respectively so as to obtain feedback strength. The feedback subsystem is used for feeding back corresponding force to the limbs of the user according to the feedback strength. By means of the assisted teaching system for musical instrument playing, the problem of insufficient teachers is solved, a leaner can adjust learning time at any time at will, the learning time is flexible, and the assisted teaching system is suitable for people at different ages or with different educational backgrounds, easy and convenient to operate, and capable of correcting musical instrument playing actions in time.

The invention provides a composition A, a composition B and a water-washed sandstone treating agent. The composition A comprises the following components by weight percentage: 0.1-20% of inorganic salt, 0.1-10% of polyethylene glycol represented by a formula (I): HO(CH2CH2O)nH (I), and 0-10% of a polyol represented by a formula (II): HO-R1-Y-R2-OH (II), wherein n is an integer of 3 or more. The composition B comprises the following components in percentage by weight: 0-15% of metal salt, 2-10% of dispersing agent, 1-10% of composite alcohol amine, 2-15% of retarder, 0-2% of air entraining agent, 0-1% of thickening agent, 0-5% of nanocrystalline core early strength agent, and water. The water-washed sandstone treating agent comprises the composition A or comprises the composition A and thecomposition B. According to the prepared treating agent, the finished product is low in toxicity and pollution, the slump and compressive strength of the water-washed sandstone concrete can be remarkably improved through matching of the composition A and the composition B, and the negative performance influence of 70-100% water-washed sandstone concrete can be remarkably reduced.

The invention relates to a comprehensive recovery method of gravity separation tailings of tin oxide. The comprehensive recovery method comprises the following steps: grinding tailings in a wet type, filtering, performing kiln type drying, mixing ferric chloride, magnesium chloride, calcium chloride, ammonium chloride and coking coal ash with the tailings by virtue of a cylinder, curing and performing high-temperature chlorination and reducing roasting in a kiln to produce magnetic iron ore powder and smoke, performing wet type magnetic separation for recovering iron ore powder containing 60% of iron and silicate tailings, performing water-cooling and absorption and separation on volatilized smoke to recover metal semi-finished product materials rich in tin, copper, silver, molybdenum, indium and the like, evaporating and concentrating circulating liquid to obtain calcium chloride, mixing and recovering. The grade of the iron ore concentrate is 62.08-64.3%, the recovery rate of ferrous and precious metals is 86.5%-96.6%, and the comprehensive recovery method has obvious practical significance.

The invention relates to the technical field of medical diagnosis, in particular to a medical isolation diagnosis device and a diagnosis method. The medical isolation diagnosis device comprises a diagnosis room and a disinfection room, the right end of the diagnosis room is provided with a first electric door, the right side of the front end of the diagnosis room is provided with a second electric door, the left side of the top end of the diagnosis room is fixedly connected with a fixing plate, a first sliding groove is formed in the fixing plate, a sliding block is slidably arranged in the first sliding groove, a groove penetrating front and back is formed in the top end of the sliding block, a first motor is fixedly connected to the right side of the bottom end of the groove, the left end of the disinfection room is fixedly connected to the right end of the diagnosis room, and a third electric door is arranged at the right end of the disinfection room. A sterile diagnosis environment is provided, the hygiene of a patient during examination is guaranteed, the sense of safety of the patient is improved, the diagnosis mentality of the patient is improved, the accuracy of a diagnosis result is improved, and the use practicability of the device is improved.

The invention belongs to the field of building materials. A red sandstone aerated concrete is characterized by being prepared from dry materials and water, and the ratio of water to material is 0.50-0.64. The dry materials include, by weight, 8%-15% of cement, 50%-75% of red sandstone, 10%-20% of lime, 1%-5% of gypsum, 0.5%-3% of metakaolin, 0%-3% of calcined hydrotalcite, 0.02%-0.15% of aluminum powder paste, 0.2%-5% of water glass and 0.05%-2% of a modifier, wherein the water glass is calculated by the solid content, and the ratio of water to material calculates the water contained in the water glass. The invention utilizes the red sandstone to prepare the energy-saving insulation wall material in line with the standard requirements, improves utilization of red sandstone, and eases the problem of shortage of river sand resources.

The invention discloses a squalene synthase gene of Panax japonicus and application of the gene, and belongs to the technical field of biotechnology. The invention fills the blank that the squalene synthase gene has not been isolated or cloned from Panax japonicus as a traditional Chinese medicinal material. The squalene synthase gene provided by the invention has nucleotide sequences shown at 87th to 1352nd sites in SEQ ID No. 1 or homologous sequences in which one or more nucleotides are added, substituted, inserted or deleted, or alleles of the gene, or derivative nucleotide sequences. The squalene synthase gene provided by the invention can improve the content of saponin that is an essential active ingredient in ginseng by a genetic engineering technology, be applied to study and industrialization for improving the content of saponin via a transgenic technology, and facilitate quality improvement of ginseng medicinal material and relief of problem of deficient saponin medicinal resource, so that the gene has a good application prospect.

The invention discloses an application method of phytase in feed. The application method includes the steps that prepared liquid phytase is sprayed on bentonite in the mass ratio of 1:(8-15), enzyme-containing bentonite is prepared, the enzyme-containing bentonite and particle feed are evenly stirred during feeding, and the mass ratio of stirred materials is 1:(9,800-10,500); in the particle feed, the using amount of inorganic phosphorus accounts for 35% to 40% of the original using amount. According to the application method, the requirements of high-temperature prilling for the phytase are reduced, the special extracting process of enzymes is not required, collection of the enzymes at the normal temperature can also be guaranteed, the using ratio of phytate phosphorus in pig feed is increased by 20% to 40%, and the using ratio of phytate phosphorus in poultry feed is increased by 31% to 58%; mineral elements and nutrient substances combined with phytic acid are released, the production performance of poultry is improved, and the quality of egg poultry shells is improved; the discharging amount of phosphorus in animal faces is decreased, and environment pollution is reduced; insufficient phosphorus supplying is relieved; the addition amount of the phosphorus-containing feed is saved, and the feed cost is reduced.

The invention discloses a degradation device and method for landfill leachate based on a microbial fuel cell-Fenton system, wherein the degradation device comprises: a left side chamber and a right side chamber, which are separated by a proton exchange membrane, wherein the left side chamber is an anode chamber of an electro-Fenton system, the right side chamber is a cathode chamber of the electro-Fenton system, and the left side chamber is a cathode chamber of the electro-Fenton system, a microbial fuel cell is arranged in the left side chamber, and voltage is provided for the electro-Fentonsystem under the action of microorganisms; an anode electrode, which is arranged in the left side chamber; two groups of first cathode electrodes and the one group of second cathode electrodes, whichare arranged in the right side cavity at intervals, wherein one group of first cathode electrodes is connected with the anode electrodes through a first external circuit, and the other group of firstcathode electrodes is connected with the second cathode electrodes through a second external circuit; and afirst resistance box and a second resistance box. According to the invention, the microbial fuel cell and the electro-Fenton system are coupled, and the method has the characteristics of efficient degradation, energy saving and no secondary pollution.

The invention provides a comprehensive recovery method for reelected tailings of stannic oxide ore, and relates to a recovery method of metal waste residue. The method comprises the following steps of: carrying out wet type grinding, filtering and drying on the reelected tailings of stannic oxide ore to prepare calcium oxide and ammonium chloride, and carrying out oxidation reduction roasting in a roasting kiln after curing to obtain magnetic iron-containing mineral powder and smoke. The edible ore power can be obtained by means of magnetic concentration, and the nonferrous metals and the rare metals can be obtained by means of water-cold absorption. According to the method, the pollution can be treated, the waste material can be recycled, the pollution can be controlled, the mineral resource lack can be alleviated, and the safety risk of a tailings dam can be reduced, so that the comprehensive recovery method is obvious in economic meaning and social meaning.

The invention discloses an environment-friendly chemical fiber board, which is composed of the following components in parts by weight: 24 to 33 parts of waste and old chemical fiber clothes, 41 to 65 parts of calcium carbonate, 52 to 95 parts of PVC resin, 0.2 to 0.5 part of polyethylene wax, 6 to 9 parts of stabilizer, 1 to 1.2 parts of AC foaming agent, 0.4 to 1.2 parts of hydrotalcite, 2 to 4 parts of silicon dioxide, 0.3 to 0.6 part of polyvinyl acetate emulsion, and 0.1 to 0.3 part of oxidized starch. The chemical fiber board is used for architectural decoration and finishing. The provided chemical fiber board can relieve the burden on wood resources and also reduce the pollution caused by waste clothes to the environment.

The invention relates to a medical robot, a medical service method and a storage medium. According to the medical robot, a data collection module collects identification information of a patient and physical index data of the patient and transmits the identification information and the physical index data of the patient to a processing module; the processing module judges the physical health condition of the patient according to the identification information of the patient and the body index data of the patient which are transmitted by the data collection module and transmits a judgment result and the identification information of the patient to a human-computer interaction module; the human-computer interaction module notifies the patient of the judgment result transmitted by the processing module according to the identification information, transmitted by the processing module, of the patient. The medical robot can replace medical personnel to a certain extent to provide medical services for the patient so as to alleviate the shortage of medical personnel, and can also effectively reduce the frequency of night shifts of the medical personnel to improve the working mode of the medical personnel.

The invention discloses a pulping method of edible fungus residue. The method includes the steps of: (1) crushing an air-dried fungus residue rod into small pieces and removing debris; (2) performingpretreatment: at room temperature, soaking the crushed fungus residue in water in a mass ratio of 1:3-1:6 for 30-60min, and then raising the temperature of the fungus residue to 95-100DEG C, fully stirring the substances, and conducting heat preservation for 30-50min; (3) conducting pulp refining: subjecting the pretreated fungus residue to staged pulp refining, and controlling the pulp refining concentration at 15-30%; and (4) performing screening: after pulp refining, employing a slot pulp screen for screening treatment, and controlling the screening slotted opening width at 0.25-0.5mm, thusobtaining mechanical pulp meeting quality requirements. The pulping papermaking process is mature, the waste environmental protection treatment is stable and reliable, and the waste liquid, waste residue and the like produced by fungus residue pulping are easy to dispose. The prepared mechanical pulp is applicable to papermaking and agricultural aspects, and can be used for producing packaging corrugating medium and degradable agricultural seedling culture cups.

The invention discloses a preparation method of a flavane component extract in a lacquer tree. The method includes the steps of drying, crushing and sieving lacquer tree trunks, carrying out reflux extraction with ethanol, dispersing an obtained extract by adding water, sequentially extracting with petroleum ether, dichloromethane, ethyl acetate and n-butyl alcohol, carrying out gradient elution on an obtained ethyl acetate extract through silica gel column chromatography, merging fractions with consistent main spots, after polyamide column chromatography separation and purification, carrying out ethanol-water gradient elution, combining fractions with a large amount of main spots, carrying out gel column chromatography elution and high performance liquid, and obtaining the flavanoid component extract. The invention further discloses a product and application. According to the preparation method of the flavane component extract in the lacquer tree, flavane components in the lacquer tree are enriched, so that the obtained extract has the effect of repairing damaged nervous tissues and has a protective effect on oxidative damage of H2O2-induced SH-SY5Y cells and excitatory damage induced by NMDA. The method has great significance in relieving deficiency of nervous system disease treatment drugs, and meanwhile development and high-value utilization of lacquer tree resources are improved.