31results about How to "Destroy well" patented technology

The invention relates to a method for reducing contact resistance based on low-melting-point metal and an oxide thereof. By coating the low-melting-point metal and the oxide thereof between electric terminals connected with machinery, the contact resistance between the mechanical electric terminals is reduced effectively. The invention further relates to a conductive paste composing of the low-melting-point metal and the oxide thereof. The oxide takes 0.05% to 50% of the total weight of the conductive paste. The low-melting-point metal is one type or a combination of any two types selected from sodium, potassium, lithium, rubidium, cesium, gallium, indium, mercury, lead bismuth alloy, gallium-base binary alloy, gallium-base complex alloy, indium-base alloy, bismuth-base alloy, mercury-base alloy and sodium-potassium alloy which are lower than 200 DEG C in melting point. With the compound of the low-melting-point metal and the oxide thereof as the conducting medium, the method for reducing contact resistance can effectively reduce the contact resistance between the electric terminals connected with the machinery, significantly reduce the contact resistance heat effect, improve transmission efficiency of electric energy and prolong the service life of the machinery. The method for reducing contact resistance based on the low-melting-point metal and the oxide thereof can be widely applied to the technical fields of electric power and energy.

The invention relates to a method for extracting oil from microalgae by utilizing ionic liquid, which comprises the following steps of: 1) preparing functionalized ionic liquid; 2) adding a certain quantity of microalgae into the ionic liquid and magnetically agitating through heating to dissolve the microalgae; 3) extracting oil in an ionic liquid mixture by using an organic solvent; and 4) adding a certain quantity of water into an ionic liquid phase after the oil is extracted, removing a water phase through evaporation, realizing the regeneration of the ionic liquid and reusing the ionic liquid. According to the method, the ionic liquid is utilized to dissolve the microalgae so as to extract the oil, almost has no vapor pressure and has the characteristics of greenness, environment friendliness and the designability; the cell wall of a microalgae can be remarkably damaged to release oil in a microalgae cell or on the cell wall; the oil is easily separated from the ionic liquid, so that the extraction rate of the oil can be remarkably improved; and the ionic liquid can be recycled through a water dilution method. The method can become a new process for microalgae oil extraction.

The method of aseptically treating containers in accordance with the invention comprises the step of subjecting the containers while held upside-down in a heat treatment station to steam at 140° C. for 2 s to 20 s and then in subjecting the containers in a station to a disinfectant mixture comprising peracetic acid, hydrogen peroxide, acetic acid, and water raised to a maximum temperature of 60° C.

A medicine used as the bactericidal of vagina is prepared from 5 Chinese-medicinal materials including cnidium fruit, argyi leaf, isatis root, flavescent sophora root, etc through extracting their active components, complexing with polyvinyl pyrrolidone as organic carrier, and complexing with povidone iodine. Its advantages are high penetrability and surface activity, broad spectrum, high effect, quickly taking its effect, and no toxic by-effect.

The invention discloses an imaging model in small animal living bodies with echinococcus granulosus and a construction method thereof. The construction method comprises the steps of: feeding CF-1 male mice; carrying out in vitro culture and drug treatment on protoscolex; carrying out in vitro fluorescence imaging and fluorescence gradient analysis; pretreating mice with depilatory paste for experimental animals, injecting the abdominal cavity of each mouse with chloral hydrate anesthetic, implanting three groups of stained scoleces under Glisson capsules by injection, dividing the mice into three groups according to different groups of injected protoscolex; in a control group, injecting the livers of mice with protoscolex on which drug treatment is not carried out, collecting images every 12 hours after injection, carrying out fluorescence intensity analysis on the ROIs region, putting into a polyethylene cage after imaging, and carrying out in vitro fluorescence gradient detection in the positive control group. The construction method constructs a mouse model with echinococcus granulosus which can express luciferase, provides a platform for drug sensitive tests in living bodies with echinococcosis, and can monitor the growth and transfer of hydatid in the living model dynamically in a long term.

The invention belongs to a method for preparing water-soluble chitosan through a radiation process. Small molecular weight or water-soluble chitosan is obtained by carrying out radiation degradation on a refined solid or solution of high molecular weight chitosan by using 60Cogamma rays, and carrying out post-processing steps of a degradation product, such as dissolving, decolourizing and the like. The method is convenient to operate, rapid, simple, convenient, high in yield, good in repeatability, easy to control molecular weight, environment-friendly, low in pollution and low in cost. The method not only can be used for rapidly preparing a few water-soluble chitosan samples but also has further industrial possibility. The obtained chitosan is multifunctional and can be used as an agricultural output increasing agent, a food drying agent, a natural antibacterial material, a biomedical material and the like.

The invention belongs to the technical field of extraction of gold ore and gold containing gold tailings and in particular relates to a gold cyaniding leaching aided agent and application thereof in agold cyanide leaching process. The gold cyaniding leaching aided agent contains the following raw materials in parts by mass: 6-8 parts of ammonium fluoride, 1-3 parts of lead nitrate and 1-2 parts of hydrogen peroxide. During actual application, the ratio can be reasonably regulated according to ore properties. Aiming at the ore properties, the leaching aided agent is added in the gold cyanidingand leaching process, so that gangue minerals, sulfides or oxide films on surfaces of gold minerals can be effectively damaged, and exposure of the gold minerals is accelerated and enlarged. Therefore, the gold minerals can be efficiently combined with cyanides, and the leaching rate of the gold is increased.

The invention discloses a preparation method of wide interlayer spacing and easily-striping graphite oxide. The preparation method is carried out by performing low-temperature oxidization reaction for a long time, controlling oxidant to slowly add, and subsequently carrying out intermediate temperature oxidizing reaction and hydrolysis process; the preparation method does not need the high-temperature oxidizing process, and can effectively avoid the excessive damage to the surface mesh structure and material granularity of the graphite oxide; meanwhile, the interlayer space of the prepared graphite oxide reaches 1.2-1.6 nm, and thus it is good for the consequent treatment and application.

The invention relates to application of LamG3/4/5 of a laminin alpha2 functional region in preparation of a medicine for preventing male contraceptive induced testis injury, and belongs to the technical field of medicine preparation. An amino acid sequence of the LamG3/4/5 of the laminin alpha2 functional region is shown as SEQ ID NO. 1. Overexpression drugs of LamG3/4/5 of the laminin alpha 2 functional region can effectively prevent testis injury induced by male contraceptives, and can play an obvious role in preventing structural integrity damage of seminiferous epithelium of seminiferous tubules in a testis, lesion of the seminiferous tubules and cytoskeletal protein damage/destruction of the seminiferous epithelium of the seminiferous tubules in the testis which are caused by oral administration of Adjudin.

A hole-protecting drying method for a porous material relates to a porous material. The method comprises the steps: mixing a displacer, a hole protector and a water-containing porous material gel in a drying kettle; heating the drying kettle; raising the temperature till the mixture is boiled; dividing water by using a water konckout vessel; and after most of water in the water-containing porous material is to be dispalced, continuously heating the mixture to obtain a dried solid product. The used displacer is low in price, easy to recover, simple and easy to control process and relatively mild in operating condition; the prepared porous material is excellent in performance. Based on conventional low-boiling-point azeotropic distillation, a small amount of the pore protector is added to realize hole-protecting drying so as to efficiently and economically obtain high pore volume silicon dioxide and other porous materials.

The present invention discloses a construction method of a hyperglycemic animal model. SPF grade C57BL/6 mice are selected, the mice are intraperitoneally injected with (38-42) mg/kg BW streptozotocinsolution for 5 consecutive days, and fasting for 3-5 h is conducted before injection; fasting for 18-22 h is conducted after 3 days and then intraperitoneal injection of (95-105) mg/kg BW streptozotocin solution is conducted once; and on the 3rd day after all injections are completed, fasting blood glucose value is measured and the mice with the blood glucose value greater than 12 mmol/L are typeI hyperglycemic animals. The suitable streptozotocin solution injection method is designed, administrations in multiple times are conducted, different sizes of injection dose, time interval and fasting time are used, high-fat and high-sugar feed and STZ combined induction is not needed, animals are high in survival rate, modeling period is short, modeling success rate is high, and the animal model has a stable blood glucose value and relatively low cost, and can be used as a research model for hypoglycemic drugs and pathogenesis of diabetes.

A process and a plant for the thermal abatement of foul air containing malodorous substances emitted by a purification system with energy recovery from said abatement are described, the process comprising the steps of: —feeding a flow of foul air containing malodorous substances emitted from a purification plant, as combustive air into the combustion chamber of a unit for production and recovery of energy, thus producing a flow of high-temperature exhaust gas; —feeding said flow of exhaust gas into a scrubber for the abatement of polluting substances, said scrubber using water for the washing of the flow of exhaust gas, thus producing a flow of low-temperature purified gas and a heated washing liquid; —conveying the heated washing liquid to at least one heating jacket of a storage tank for the biological treatment of sewage of the aforementioned purification plant; a method for revamping a pre-existing purification plant, so as to make the plant suitable for implementation of the process described above, is also described.

The invention provides a device for inactivating microorganisms in ship ballast water based on a photoelectrocatalysis principle, the ship ballast water enters a reaction tank through a water inlet, acathode plate, an anode plate and an ultraviolet light source are arranged in the reaction tank, the ship ballast water is inactivated through photoelectrocatalysis, and aeration is carried out in the reaction tank through an aeration device. Different groups of cathode and anode plates are separated from the electric magnetic stirring device through partition plates, a water through hole is formed between the cathode and anode plates for circulation, and treated ship ballast water is discharged through a water outlet. The device is simple in preparation, low in cost, capable of efficiently and quickly inactivating the microorganisms in the ballast water, low in treatment cost, small in occupied area, safe and reliable in equipment and operation, good in economic effect and wide in ship application prospect.

The invention discloses a construction method and application of an animal model of liver injury induced by tripterygium glycosides. The experiment shows that the liver tissue structure of zebrafish can be obviously injured when concentrations of the tripterygium glycosides are 42.5, 128 and 383 mu g/mL, and the ALT, AST and ALP content can be increased in the high dose group of the tripterygium glycosides (the concentration of the tripterygium glycosides is 383 mu g/mL), which indicates that the high dose of the tripterygium glycosides has the effect of liver injury. The animal model of the liver injury induced by the tripterygium glycosides is successfully constructed by treating the zebrafish with a tripterygium glycosides solution; the construction method has the advantages of reliability, rapidity, high efficiency, low cost, high cost performance and the like, opens a new way for subsequent researches to systematically study the hepatotoxicity characteristics and mechanism of thetripterygium glycosides, and provides a theoretical basis for screening hepatoprotective drugs and tripterygium glycosides detoxification drugs.

The invention relates to a preparation method for a SiC coated carbon fiber reinforced metal based composite material. The preparation method comprises the following steps: performing pyrolytic carbondeposition-silicon carbide deposition treatment on carbon fibers, coating the carbon fibers with phenolic resin, and ball-milling with a matrix metal ball to obtain uniformly mixed powder; and performing a pressing-sintering process to obtain the composite material. Wear resistance of the carbon fibers is remarkably improved through a pyrolytic carbon deposition-silicon carbide deposition treatment method, and the problems that the carbon fibers are easily wound, are unevenly dispersed in the material and are difficult to keep in a carbon fiber structure are successfully solved in combinationwith a phenolic resin coating and ball-milling process; moreover, the carbon fibers are coated with silicon carbide, so that the problems such as uncompact interface sintering due to poor intrinsic embrittlement of the CVD coated carbon fibers, and poor wettability with most of metals are solved, room-temperature and high-temperature mechanical properties of products are greatly improved while compact sintering is realized, and wear resistance of products is especially improved greatly.

The invention relates to a technical field of traditional Chinese Medicine decoction piece processing, and specifically relates to a processing method of a nontoxic high efficient leech decoction piece. The processing method comprises the following steps: taking pig blood as the blood source to feed leeches, delivering leeches to an illumination room, processing leeches in the illumination room, delivering the leeches to a vacuum refrigeration tank, freeze-drying leeches, filling obtained leeches into a bag, sealing the bag, covering leeches at a temperature of 28 to 30 DEG C for 24-26 hours in the absence of light, then laying out leeches, drying leeches in the air at a room temperature until the water content is 5 to 6%, and finally carrying out split charging. The provided leech decoction piece has a high dissolution rate and ultralow toxic substance content, and has the characteristics of high efficiency and low toxicity.