34results about How to "Long-term effectiveness" patented technology

The present invention belongs to the technical field of soil heavy metal remediation, specifically discloses a method for preparing the iron-based biochar material, the iron-based biochar material prepared there from and a method for controlling the heavy metal pollution in soil using the iron-based biochar material. For the iron-based biochar material of the present invention, by using a method of high-temperature carbonization, a biomass is used as a raw material and an iron-containing compound is add in the process of preparing biochar, wherein iron is incorporated in a specific ratio, to form the iron-based biochar material with a special structure and function. The material has a simple preparation process, low cost and a short production period; the prepared iron-based biochar material has an unique effect on the arsenic-cadmium combined pollution soil remediation, can effectively reduce the bioavailability of arsenic and cadmium in the soil, significantly reduces the arsenic and cadmium contents in the agricultural products planted in the arsenic-cadmium combined pollution soil, and has no toxic and side effects on the crops, is safe to apply and can be applied to the control of arsenic-cadmium combined pollution soil in a large scale.

The invention discloses a copper cleaning agent and a preparation method thereof. The copper cleaning agent disclosed by the invention consists of an inorganic acid, an organic acid, a surfactant, a penetrating agent, an emulsifier, a defoaming agent, a complexing agent and water. The inorganic acid and the organic acid are compounded, the hazards to health of cleaning workers caused by individual use of the inorganic acid in the traditional cleaning agent are avoided, over etching of a copper workpiece is also avoided, the copper cleaning agent is an environmental-friendly cleaning agent and has a certain oiliness, an effect of cleaning dirt such as oil attached to the surface of a copper part is improved by using the cleaning agent, the cleaning agent solution is acidic, and the oxide skin on the surface of the copper part can be well removed. The cleaning agent prepared by the invention is simple in using method, the copper part only needs to be soaked at normal temperature for 2-5 minutes so as to be cleaned, no greasy dirt residue is left on the cleaned copper part, the color of the surface of the copper part is the copper base color, and the cleaning effect is obvious. The copper cleaning agent disclosed by the invention is simple in preparation method, low in cost and obvious in effect and is suitable for industrial production and application.

The invention relates to a drying-box door, which comprises a door frame and a rolling track, wherein the door frame is arranged in a box-body opening, the rolling track is installed on the door frame, a box door is fixedly arranged on the rolling track through a pulley, a lifting iron chain is installed at the upper end of the box door and is connected with a minor crane, the minor crane is installed at the upper part of the box body, heat-preserving cotton beyond the edge of the box body is arranged on the inner wall of the box body, compacting devices are installed on the box body at the periphery of the box door, and lugs are positioned at positions where the framework of the box door and the compacting devices are buckled, and are positioned on the box door. Differing from a traditional drying-box door, an up-down stretching-type structure and the compacting device are adopted by the drying-box door disclosed by the invention; compared with a traditional door opening-closing type drying-box door, better sealing and heat-preserving effects are achieved. The heat-preserving cotton is adopted on a sealing surface, so that the sealing effect can not be influenced due to stretching for many times. Since the structure that the box door is stretched through the crane is adopted, manpower is saved, so that the design is applicable to large and small drying boxes.

The invention discloses application of a phosphorus base charcoal material to remediation of lead contaminated soil. According to the phosphorus base charcoal material, microorganisms are used as raw materials; and a phosphorus base material with a specific ratio is doped to form the phosphorus base charcoal material with special structure and functions through anaerobic high-temperature carbonization. The material is simple in preparation process, lower in cost, biodegradable and free of secondary pollution; and the obtained phosphorus base charcoal material has a better effect on remediation of the lead contaminated soil, and the bioavailability of lead in the soil can be effectively reduced. The synthesized phosphorus base charcoal material is uniformly mixed with soil by a certain ratio; and after fixation by 7 days, available lead in the soil is reduced by 33.0-59.8%, so that the phosphorus base charcoal material has a better remediation effect compared with a pure phosphorus base material.

The invention provides a horizontal well film-coated proppant staged fracturing yield testing method. The method comprises the steps that a tracer is synthesized into nanocrystals through colloid by adopting a quantum dot technology, then the nanocrystals are marked in a polymer, the polymer is adsorbed on the surface of a proppant to form a polymer coating, a fracturing fluid is utilized to carrya quantum dot polymer coating proppant to be added into a stratum during horizontal well staged fracturing, a combination of quantum dot tracer markers is judged by using laser to irradiate particlesin a liquid flow through stratum fluid sampling after production, and the oil production and water production contributions of all layer sections are accurately calculated. The service validity period of the quantum dot tracer markers is as long as 2 years. The polymer comprises a water-soluble polymer and an oil-soluble polymer at the same time, when the polymer encounters a stratum fluid, the quantum dot tracer markers marked on the oil-soluble polymer exist in an oil phase, the quantum dot tracer markers marked on the water-soluble polymer exist in a water phase, and the oil-water phase distribution coefficient is stable.

The present disclosure relates to a transplantation implant that includes stem cells having an ability of secreting a cytokine that having a hair-growing function.

The invention discloses a selenium-rich bullfrog-tadpole feed. The selenium-rich bullfrog-tadpole feed is prepared from selenium-rich corn, selenium-rich wheat, selenium-rich soybeans, edible mushroom leftovers, fish and shrimp leftovers, konjac flour, selenium-rich malt, selenomethionine, soybean oligosaccharide, wine yeast agent, bifidobacterium agent, salt, animal complex vitamins, animal complex minerals, glucosinolates, cordycepin, rutin and rosmarinic acid. The nutrients of the product are rich, the requirement for equipment is low, and the selenium-rich bullfrog-tadpole feed is suitable for industrial production; organic selenium is rich, various vitamins and various minerals are added, absorption and use are promoted, the content of selenium of bullfrogs is increased, the health-caring function is improved, oxidation resistance, aging resistance and cancer resistance can be achieved, immunity can be improved, and heart and cerebral vessels can be protected; after fermentation and puffing, nutrients are rich, absorption is rapid, palatability is good, the weight is rapidly increased, domestication is smoothly completed, and the survival rate of tadpoles is increased; due to various plant extractants, the antisepsis and anti-inflammation effects and the antiviral effect are achieved, resistance is enhanced, the yield of bullfrogs is increased, the quality of bullfrogs is improved, and cultivation income is increased.

A metal-based battery includes at least one metal electrode immersed within an electrolyte that includes: (1) an aprotic solvent; (2) a simple halogen containing material; and (3) optionally a metal salt that includes a complex halogen containing anion. The simple halogen containing material may include a metal halide salt that includes a metal cation selected from the group including but not limited to lithium and sodium metal cations. The metal halide salt may also include a halide anion selected from the group consisting of fluoride, chloride, bromide and iodide halide anions. The use of the metal halide salt within the metal-based battery provides enhanced cycling ability within the metal-based battery. Also contemplated are additional simple halogen containing material additives that may enhance cycling performance of a metal-based battery.

The invention belongs to the technical field of sewage treatment, in particular to the technical field of a preparation method of a hydroxyapatite nanocomposite material. The removal mechanism of Cd2+, Cu2+, and Zn2+ in hydroxyapatite nanocomposites is firstly the rapid complexation of heavy metal ions on the surface of hydroxyapatite, and then the heavy metal ions diffuse into the particles and exchange with Ca2+ to form a complex containing heavy metal ions. Ionic hydroxyapatite. For Pb2+, in addition to the adsorption of fixed cations, the dissolution of hydroxyapatite and the precipitation of Pb10(PO4)6(OH)2 contributed most of the removal of Pb2+, and heavy metal ions such as Cd2+, Cu2+, Zn2+ were absorbed by hydroxyapatite It is adsorbed by stone nanocomposite material. The performance of this material is stable. The nano-scale hydroxyapatite powder wrapped by zeolite releases slowly, which can maintain long-term effectiveness, and the release of phosphorus is not large, which will not cause eutrophication of water body.

Provided is a novel ivermectin derivative and compositions for the treatment or prophylaxis of parasite infestations in mammals or birds which comprise: (A) a pharmaceutically effective amount of a 1-N-phenylpyrazole compound; (B) a pharmaceutically effective amount of an ivermectin derivative of formula (II) wherein: R14 represents -(CH2)S-O-Z wherein, s is 1 or 2; Y represents -CH(OR, 15)-, -C(=O)- or -C(=NOR 15); R15 represents hydrogen, alkyl or phenyl; and R16 represents -CH3 or -CH2CH3; Z is alkyl, alkenyl, alkynyl, acyl, alkylalkoxy, aryl, alkanoyloxy, alkoxycarbonyl, alkenoyl, alkynoyl, or aroyl.

The invention belongs to the technical field of high-molecular materials, and provides a reinforcing and toughening filling master batch with a compatibilization performance and a preparation method therefor. The master batch comprises the following ingredients, by weight, 10-50 parts of an elastomer, 0.001-0.2 part of an initiator, 0.5-5 parts of a compatibilization functional monomer, 0.5-3 parts of a filling material surface treatment monomer, 40-70 parts of silicon calcium powder, 0.2-1 part of an anti-oxidant and 2-5 parts of a lubricant. The filling master batch has good reinforcing and toughening performances, and has an excellent compatibilization performance. The preparation method is advantaged by simple flows, reasonable and controllable technology conditions, simple processing technology and low cost, and is suitable for industrial production.

The invention discloses PVC plastic with a self-antibacterial property and a preparation method thereof. According to the raw material formula, the PVC plastic is prepared from the components in partsby mass: 60-70 parts of polyvinyl chloride, 5-15 parts of chlorinated polyethylene, 10-20 parts of inorganic nonmetallic nanometer filler, 3-6 parts of a heat stabilizer, 9-12 parts of a coupling agent, 2-5 parts of acrylate copolymer, 0.5-0.8 part of calcium stearate, and 0.3-0.6 part of paraffin. A bactericidal substance of the PVC plastic is an inorganic nonmetallic nanomaterial with high safety, the bactericidal substance uniformly disperses in a PVC matrix material without adding additional bactericidal substances, use of the bactericidal substance is more convenient, long-term effectiveness is achieved, the bactericidal substance of the PVC plastic has no selectivity to bacterial species, and has a wide antibacterial spectrum; and a PVC plastic sheet has the advantages of being non-toxic, being non-irritating, being non-corrosive, long acting time, repeated use and being environmental-friendly, the preparation process is simple, and operation is easy.

The invention belongs to the field of antibacterial plastics and discloses inorganic nano antibacterial hard PVC (polyvinyl chloride) and a preparation method thereof. The preparation method comprisesthe following steps: adding an inorganic non-metallic nano-filler into water so as to obtain slurry, adding a coupling agent, performing a stirring reaction, performing suction filtration, drying, crushing and screening on the slurry after the reaction, and further performing ball milling by using a ball mill so as to obtain an inorganic nano antibacterial agent; and mixing rigid polyvinyl chloride, the inorganic nano antibacterial agent and an additive, and performing extraction molding, so as to obtain the inorganic nano antibacterial hard PVC. The antibacterial agent is prepared from the inorganic non-metallic nano filler through a special treatment process, the antibacterial ability of the antibacterial agent can be improved, the antibacterial agent can be uniformly dispersed into PVCwhile the nano dimension is maintained, and the inorganic nano antibacterial agent is not liable to migrate, so that the antiseptic antibacterial ability of the hard PVC can be ensured, the hard PVCis simple and convenient to use and has long-term effectiveness, and in addition, the impact resistance of the hard PVC can be improved.

This invention relates to formulations for treating or reducing dentine hypersensitivity that causes pain arising from exposed dentine in the oral cavity. The present invention seeks to provide formulations for physical blockage of dentinal tubules that have long term effectiveness and cause minimal irritation (if any at all) to the tissues of the oral cavity. Preferred formulations should be easy to apply, be immediately effective and maintain dentinal tubule occlusion under normal teeth cleaning regimes that include regular tooth brushing. The invention provides a formulation for reducing dentine sensitivity in the oral cavity, which incorporates at least one physical desensitising agent in form of a light curable monomer that forms a resilient polymer gel upon curing.

The invention discloses a mirror surface-level high-precision metal working oil suitable for high-light processing technology. The metal working oil is characterized in that: the raw materials includethe following components by weight: 80-90 parts of electric spark machine oil, 0.3-2 parts of polyisobutylene, 0.2-5 parts of graphene, 0.5-3 parts of a purification dispersant, 0.5-3 parts of an alkali retention agent, 0.2-1.5 parts of phosphate, and 6.2-13 parts of a surfactant; the raw materials are easily available, the preparation process is simple and easy to operate, all the components form stable chemical equilibrium through synergistic effect, and the working oil can have more stable performance. The working oil can reduce the activation energy of material surface, decrease surface tension, reduce the suspension of fine dust-like chips produced in the metal working process, and accelerate the settlement of fine dust-like chips, at the same time can improve the filterability of working fluid and ensure the cleanliness of oil products, prevents the vibration mark and scratching during high-light processing, improves the brightness of high-light processing products, and greatlyimproves the mirror surface effect.

Oral pharmaceutical compositions comprising dry extract of Euphorbia prostrata from about 0.1% to about 99% by weight wherein the effective average particle size of the dry extract of Euphorbia prostrata is not more than about 500 microns with pharmaceutically acceptable excipient(s) and process(s) for the preparation of such compositions useful for the treatment of anorectal disease and colonic diseases such as hemorrhoids, fissures, cracks, fistulas, abscesses, inflammatory bowel disease and the like are provided. Further, the pharmaceutical compositions of the present invention provides for the administration of a therapeutically and / or prophylactically effective amount of the Euphorbia prostrata wherein the compositions possess properties to control inflammation, prevent capillary bleeding and fragility in mammalians, particularly human beings. Furthermore, the compositions preferably provides a release of not less than about 50% of the dry extract of Euphorbia prostrata in first 15 minutes and not less than about 80% of dry extract of Euphorbia prostrata after total dissolution study of about 60 minutes when tested in accordance with the dissolution method described herein employing physiological pH range of about 2 to about 7.5 optionally with surfactant(s). Preferably the compositions of the present invention are in the form of tablets, minitablets, powders, capsules, pellets, granules, beads, compacts and the like. The present invention also provides and prophylactic and / or therapeutic methods of using such compositions for the treatment of anorectal diseases including hemorrhoids and colonic diseases.

Disclosed and methods for light-based treatment of skin disorders such as acne. Also disclosed are devices for providing said light-based treatments. These treatments can be used in conjunction with and augmented by topical formulations of health-associated bacteria.

The invention discloses an anti-winding clothes washing roller with a sterilizing effect. The anti-winding clothes washing roller comprises a left hemisphere, a right hemisphere and concave-convex anti-winding tooth pieces. The left hemisphere and the right hemisphere are connected to form a hollowed spheroid. Multiple micro-holes allowing water convection are formed in the surface of the hollowedspheroid. The concave-convex anti-winding tooth pieces are arranged on the outer surface of the hollowed spheroid in the long axis direction of the spheroid at intervals, and the concave-convex anti-winding tooth pieces are composed of multiple tooth piece bodies staggered high and low. The hollowed spheroid and the concave-convex anti-winding tooth pieces are prepared from, by mass, 75-80 partsof silicone rubber, 3-5 parts of an inorganic nonmetal nano material, 3-5 parts of a vulcanizing agent, 2-4 parts of a catalyst, 4-6 parts of a dispersing agent, 3-5 parts of a surface active agent and 2-5 parts of a surface treating agent. The anti-winding clothes washing roller with the sterilizing effect has the advantages that the durable sterilizing effect is achieved without replacing parts,a good anti-winding effect is achieved, and environmental friendliness is achieved.

Herbal pharmaceutical compositions for the treatment of ano-rectal diseases are provided. The compositions include C. molmol, Gardenia spp, T. erecta, M. ferrea, activated charcoal, probiotic, neem and / or curcumin, cloves, isabgol, pharmaceutical excipients, and optionally a therapeutic agent. The compositions possess properties to control inflammation by lowering levels of inflammatory cytokines and matrix metalloproteinases, prevent capillary bleeding and fragility in mammals, particularly human beings and have wound healing properties.

The invention discloses a novel automatic stroke unloading valve assembly, which includes a valve tube, a pressure spring and an unloading valve mechanism. The unloading valve mechanism includes a bushing seat, a limiting bushing and a valve stem. One end of the tube; one end of the central hole of the limit sleeve is provided with a tapered hole; the valve stem includes a long rod b and a matching shaft c, the matching shaft c is in the shape of a truncated cone, and its small diameter end is connected with one end of the long rod b. The conical side wall d is in contact with the tapered hole wall, and the other end of the long rod b passes through the center hole of the limit sleeve; there are two unloading valve mechanisms, which are respectively located at both ends of the valve tube, and the pressure spring is located at the two unloading valves. between the load mechanism and in a compressed state. The present invention separates the original detached structure for unloading from the rack piston to form an integral structure and an independent valve body, which improves the accuracy and reliability of the overall structure of the unloading component.

The present invention relates to novel herbal pharmaceutical compositions and method of preparing said herbal pharmaceutical compositions. Said novel composition along with therapeutic agents and pharmaceutically acceptable carriers, pharmaceutically acceptable bases or combinations thereof, is useful for the treatment of ano-rectal diseases, including hemorrhoids, anal fissures, fistula etc. The novel compositions possess properties to control inflammation by lowering levels of inflammatory cytokines and matrix metalloproteinases, prevent capillary bleeding and fragility in mammalians, particularly human beings and have wound healing properties.