286results about How to "Dissolve completely" patented technology

The invention discloses an aluminium nitride ceramic material and a preparation method thereof. The method is to add nano-alumina to raw materials in the prior preparation method for preparation according to the prior preparation process. In-situ growing nano-alumina can be obtained directly through adding the nano-alumina, or indirectly through adding organic aluminum, such as aluminium secondary butylate, aluminium isopropoxide or aluminium acetylacetonate, and by means of low-temperature decomposition of the organic alumina. The method can be applied to dry pressing and tape casting shaping, can obtain slurry with good dispersing characteristic and even mixing of the aluminium nitride and the nano-alumina by the ceramic preparation process, such as normal pressure, hot pressed sintering or the like, and is favorable for the improvement of sintering activity of materials, the reduction of sintering temperature, the improvement of luster uniformity, planeness and roughness for a ceramic substrate, and the reduction of production cost. The aluminium nitride ceramic material and the preparation method thereof can be widely applied to the field of aluminium nitride ceramic production.

A monomeric adhesive composition includes a polymerizable monomer, such as a 1,1-disubstituted monomer such as a cyanoacrylate, and an antimicrobial agent, wherein the antimicrobial agent is a phenolic active compound. Examples of suitable phenolic active compounds include halogenated phenol compounds such as chlorinated phenol compounds (such as triclosan) and brominated phenol compounds.

Disclosed is a washing machine control panel base (2) with the function of automatically adding detergent, wherein at least one chamber (4) for adding solid detergent, at least one container (5) for holding liquid detergent, and an automatic detergent adding device (6) communicated with the chamber (4) and the container (5) are arranged in the control panel base (2); at least two detergent adding ports (7) are formed on an upper end face (21) of the control panel base (2), and the detergent adding ports (7) are in communication with the chamber (4) and the container (5) in a one-to-one corresponding mode; and an accommodation space (26) is arranged below the control panel base (2) and is formed by an outer circumferential wall (22), the upper end face (21) connected to the outer circumferential wall (22), and an inner circumferential wall (23) serving as a clothes adding port (24), with the chamber (4), the container (5) and the automatic detergent adding device (6) all being arranged in the accommodation space (26). According to the design, the internal space of the washing machine control panel base (2) is fully utilized, and the brand new arrangement is convenient for users; and the structure of the chamber (4) for adding solid detergent is integrally formed and is simple.

The invention relates to a preparation process for extracting crude sodium heparin from pig lungs, which comprises the following steps: mincing fresh pig lungs into slurry, carrying out heat insulation and enzymolysis to obtain an enzymolysis liquid, filtering the enzymolysis liquid to collect filtrate, carrying out ion exchange adsorption treatment on the filtrate, washing and eluting resin, precipitating sodium heparin, and drying to obtain crude sodium heparin. The enzymolysis method employed by the invention can thoroughly dissolve pig lung slurry and effectively improve and stabilize the quality of the product and the yield of sodium heparin; and simultaneously, the obtained crude sodium heparin has low impurity content and high titer.

The invention discloses an anionic polyacrylamide water-in-water emulsion water shutoff profile control agent, and a preparation method and a using method thereof. The anionic polyacrylamide water-in-water emulsion water shutoff profile control agent consists of an anionic polyacrylamide water-in-water emulsion and a cross-linking agent. The preparation method comprises the following steps: adding deionized water, a stabilizing agent, part inorganic salts, nonionic monomers, anionic monomers, a chelating agent and (a chain transfer agent) into a reaction container, stirring uniformly, adjusting the pH value to a suitable range, introducing nitrogen to remove oxygen, adding an initiator to initiate a reaction, adding the remaining part inorganic salts in a reaction process, preserving heat, and discharging materials to obtain the anionic polyacrylamide water-in-water emulsion. The using method of the anionic polyacrylamide water-in-water emulsion serving as a water shutoff profile control agent comprises the following steps: diluting the water-in-water emulsion on situ or on line to prepare a uniform aqueous solution with a certain concentration, adding a certain amount of the cross-linking agent under the condition of stirring, stirring uniformly and injecting the aqueous solution into a stratum to realize the purpose of improving crude oil recovery rate.

The invention discloses an irrigation system for greenhouse water and fertilizer integration. The system comprises a blending box, a rotating rod is fixedly arranged at the output end of a rotating motor, an EC sensor and a PH sensor are fixedly arranged on the side wall of an inner cavity of the blending box, a water and fertilizer filter screen is fixedly arranged at the joint of a communicatingpipe and the blending box, and brushes are arranged on stirring blades close to the EC sensor, the PH sensor and the water and fertilizer filter screen. A fertilizer box is arranged above the blending box, and an impact ball is fixedly arranged at the end part of an extension rod. A three-way pipe is arranged on the blending box in a communicating mode, a first branch pipe is communicated with aninner cavity of the blending box, a second branch pipe is communicated with a rainwater collecting box, and a third branch pipe is communicated with a water inlet pipe. According to the irrigation system for greenhouse water and fertilizer integration, the rotating rod in the irrigation system can clean the EC sensor, the PH sensor and the water and fertilizer filter screen while stirring water and fertilizer mixed liquid, measurement is accurate, blockage is avoided, and the use is convenient.

The invention discloses an LID-PEG-PLGA controlled-release nano microsphere and a preparation method thereof. The microsphere is the controlled-release microsphere which contains medicinal lidocaine and a degradable carrier. The degradable carrier contains polylactic-glycolic acid and PEG-2000. The mass percentage of the lidocaine in the controlled-release microsphere is 30 to 35 percent. The preparation method comprises the following steps of: preparing the carrier into matrix solution; dispersing the lidocaine into the matrix solution and preparing the lidocaine into an oil phase; mixing the oil phase and the aqueous solution of polyvinyl alcohol, and performing ultrasonic emulsification on the mixture under a water bath condition to obtain W / O-type protogala; mixing the W / O-type protogala and the aqueous solution of polyvinyl alcohol again, and further emulsifying the mixture into W / O / W-type complex emulsion; volatilizing the emulsion by reducing pressure at the normal temperature to obtain cured lidocaine-carried nano microsphere; and scattering, blending, packaging, freezing, sterilizing and the like. The medicament loading rate of the controlled-release nano microsphere can be up to 15 to 22 percent; the entrapment rate can be up to 68 to 78 percent; and the half-life period can be prolonged to 3 to 4 days. Therefore, the microsphere has relatively good effect of burst in the first day after the microsphere is taken and good effect of slow release in later days.

The invention is about a kind of magnetotactic bacterium which is separated from the mud sample in the iron-affluent watershed. The bacterium is preserved in the Chinese typical culture collection center. The preserving code is CCTCC NO:M205105 while the classified name is Magnetotactic bacterium MB-TZ. The bacterium is facultative anoxybiontic bacterium and the state of the thallus is circular staff. A thallus can produce 3-20 circular magnetic globules which are mainly comprised by iron, calcium, fosforus, oxygen and magnesium. The bacterium has many advantages such as short producing cycle, easy to cultivate and easy to be produced in factories. During the extracting and purifying of the magnetic globules, the invention adopts the treating method of repeating freeze thawing combining with supersonics, so it can dissolve the thallus more thoroughly and increase the yield of magnetic globules.

The invention relates to a cefuroxime axetil odor-masking pellet and a preparation method thereof. The cefuroxime axetil odor-masking pellet consists of an uncoated pellet containing the cefuroxime axetil and an odor-masking layer coating outside the uncoated pellet. The cefuroxime axetil odor-masking pellet overcomes the defect of bitter taste of the prior cefuroxime axetil tablets, and provides a novel cefuroxime axetil preparation which masks bitter taste, releases medicament rapidly and has stable quality.

The invention discloses a Coomassie Brilliant Blue G250 staining liquid, which contains the following components: CBB G-250 with a mass volume concentration of 0.1-0.2%, ammonium sulfate with a mass volume concentration of 5-15%, and a volume percentage of 3 -8% phosphoric acid, 20-40% ethanol by volume, and 5-20% methanol by volume. The staining solution integrates the fixative solution, the sensitizing solution and the staining solution, the background of the dyed gel is lighter, and the dyeing sensitivity is high; a method for dyeing by using the above-mentioned Coomassie Brilliant Blue G250 staining solution is also disclosed. In addition to high repeatability and low staining background, this detection method is fast and sensitive, and the number of detected protein spots is relatively large; it has good mass spectrometry compatibility and can reduce protein modification in vitro; it has a wide range of applications. At the same time, the application of the above method in the qualitative and / or quantitative detection of proteins is disclosed.

The invention provides an anti-aging essence composition and a preparation method thereof. The composition comprises the following component A and component B in percentage by weight: in component A, 80 to 85 percent of plant water, 2 to 8 percent glycerol, 0.01 to 0.2 percent of hyaluronic acid, and 2 to 5 percent of beta-glucan; and in component B, 2 to 5 percent of organic cotton thistle extract, 2 to 5 percent of organic beech extract, 2 to 5 percent of organic apple extract, and 0.3 to 0.7 percent of 1,2hexanediol and caprylyl glycol mixture. The method comprises the following steps: 1) heating the component A to 80-85 DEG C, and stirring so as to completely dissolve the component A; 2) cooling to 40-45 DEG C, and adding the component B; and 3) discharging to prepare the organic anti-aging essence. The invention has the beneficial effects that the essence has the functions of enhancing the skin elasticity and resisting aging; and the whole process of processing, producing and packaging is in accordance with the environmentally-friendly and healthy principle, and the anti-aging product is safer and environmentally-friendly.

The invention discloses an excavator bucket tooth and a preparation method thereof. The excavator bucket tooth solves the problem that the existing bucket tooth fractures or cracks easily and has a short service life. The excavator bucket tooth contains: by mass, 0.26 to 0.29% of C, 1.30 to 1.50% of Mn, 1.20 to 1.40% of Si, 1.40 to 1.60% of Cr, 0.15 to 0.25% of Mo, 0.20 to 0.30% of Ni and the balance Fe. The preparation method of the excavator bucket tooth comprises a casting process and a heat treatment process. The excavator bucket tooth has the advantages of good mechanical properties, high hardness, high toughness, high wear resistance, high tensile strength and long service life.

An aqueous vulcanizable adhesive composition, which comprises a phenol resin emulsion prepared from a water-insoluble phenol resin solution in methyl ethyl ketone and an aqueous water-soluble polymeric substance solution, and a curing agent for phenol resin, uses a partially water-miscible methyl ethyl ketone in place of a completely water-miscible organic solvent, where an amount of methyl ethyl ketone is considerably reduced. PVA, preferably aceto-acetyl-modified PVA, is used as the water-soluble polymeric substance, and the aqueous vulcanizable adhesive composition is suitably used for vulcanization bonding of a metal to (hydrogenated) NBR or acrylic rubber.

A cathode of an all-solid-state lithium ion battery is prepared by applying a slurry, in which an active material, a conductive material, a sulfide-based solid electrolyte, and a binder are mixed, to a substrate. The binder is a hydrogenated nitrile butadiene rubber (HNBR) having a residual double bond, an amount thereof is more than 0% and equal to or less than 5.5%.

The invention discloses an environment-friendly flocculating agent for lowering the COD and a preparation method and application thereof. The environment-friendly flocculating agent is prepared from, by mass, 1%-5% of cationic starch, 1%-3% of chitosan, 1%-3% of sepiolite, 1%-5% of sodium chloride, 0.2%-1% of rectorite, 1%-3% of glacial acetic acid and 80%-94.8% of water. The preparation method comprises the steps that the water is added into a reactor, heated and stirred; the cationic starch is added into the reactor, the glacial acetic acid and the chitosan are added when the starch is completely dissolved, the sodium chloride, the sepiolite and the rectorite are added when the chitosan is completely dissolved, fully stirring is performed, when the materials are completely dissolved, the mixed liquid is cooled to the room temperature, and then the environment-friendly flocculating agent is prepared. The environment-friendly flocculating agent is natural, degradable and friendly to environment and cannot cause secondary pollution; paint slag agglomeration can be improved, the paint slag water content can be increased, and the COD removing rate of painting workshop circulating water is about 90 percent.

The invention discloses silk fibroin freeze-dried powder with large molecular weight. The silk fibroin freeze-dried powder is characterized in that the freeze-dried powder is powder obtained by performing degumming, lithium bromide-dissolving, dialyzing, centrifuging, high-temperature and high-pressure sterilizing and freeze-drying onto silks. The freeze-dried powder comprises stable nano-particles consisting of random coils and alpha-helixes. The silk fibroin freeze-dried powder disclosed by the invention has beneficial effects as follows: random coil molecular structure of the silk fibroin is kept in a freezing and drying process, so that the silk fibroin is not transformed towards a beta-folding direction or degree of the transformation is controlled, and therefore, silk fibroin molecules are prevented from interaction and accumulative crystallization. The silk fibroin freeze-dried powder disclosed by the invention is the silk fibroin freeze-dried powder with large molecular weight, which can be quickly and completely dissolved in water, and is applicable to a plurality of biomedical and clinical fields.

An assembly for transient and continuous testing of an open portion of a well bore arranged in a lower part of a drill string includes at least two packers fixed outside of the drill string, which are expandable for isolating a reservoir interval. The assembly includes a down-hole pump, sample chamber, sensors, closing valve, sensors and telemetry for measuring and realtime transmission of flow rate, pressure and temperature of fluid flow from the reservoir interval, from the down-hole pump, in the drill string and in an annulus above the packers, a mud driven turbine or electric cable, and a circulation unit. The circulation unit, independent of the circulation rate for mud to the annulus, can feed formation fluid from the reservoir interval into the annulus, so that at any time a well can be kept in over balance and the mud can solve the formation fluid from the reservoir interval.

The invention provides a bio-adsorbent for treating dye wastewater and a preparation method therefor and application thereof and belongs to the technical field of dye wastewater treatment. The bio-adsorbent contains the raw materials in parts by weight: 35-40 parts of edible fungus waste, 22-30 parts of bamboo shoot waste, 20-25 parts of pomelo peel and 5-12 parts of tea leaves. The preparation method comprises the steps of pretreating the raw materials, then, adding aqueous alkali into the pretreated raw materials, carrying out stirring, washing an activated product with water until the activated product is neutral, drying the washed activated product, then, adding a citric acid solution to soak the activated product, carrying out heating stirring, washing a modified product with water until the modified product is neutral, drying the modified product, then, adding an alcoholic solution to soak the modified product, carrying out ultrasonic wave assisted treatment, washing a product with water until the product is neutral, and drying and crushing the product, thereby obtaining the bio-adsorbent for treating the dye wastewater. According to the application of the bio-adsorbent in the treatment of the dye wastewater, the bio-adsorbent is added into a dye aqueous solution for oscillatory reaction, and filtering separation is carried out, so as to complete adsorption removal for the dye aqueous solution. According to the bio-adsorbent for treating the dye wastewater and the preparation method therefor and the application thereof, the problem of environmental pollution is solved, the resourcing of the wastes is realized, and the aim of treating wastes with wastes is achieved.

The invention relates to a sandwich candy floss with donkey hide glue and a preparation method thereof. The candy floss comprises the following ingredients according to parts by weight: 0.3-0.5 parts of donkey hide glue, 2-3 parts of modified starch, 35-40 parts of white granulated sugar, 2-4 parts of gelatin, 0.3-0.5 parts of pectin, 55-60 parts of water, 0.1-0.2 parts of vitamin C and 0.1-0.2 parts of vitamin E. Based on the traditional candy floss formula, the sandwich candy floss is added with the donkey hide glue and the pectin, the water using amount is increased, the using amounts of the modified starch and the gelatin are reduced, the added pectin can retain water completely, so that the cost is lowered, simultaneously, the candy floss body is good in elasticity, and is softer, can be dissolved upon entry into the mouth, and has the same health protection function as that of the donkey hide glue, which can nourish blood and beautify a human body. The preparation method of the sandwich candy floss has the advantages of low cost and high production efficiency.

The invention discloses a dissolving and adding system for permanganate composite medicament, and relates to a dissolving and adding system. The dissolving and adding system aims at solving the problem that in the existing medicament dissolving tank, the medicament dissolving effect is poor, which results in inaccurate medicament batching, thus directly affecting water treatment effect. In the invention, a material inlet part is arranged on a grid, a material transmission part is arranged in a dissolving tank, an outer-circulation hydraulic-power stirring device is arranged at the left side of the dissolving tank, a first flow guiding device and a second flow guiding device are both arranged in the dissolving tank obliquely, the inner part of the dissolving tank is divided into three dissolving cavities, the blades of a direct-blade layer are arranged on the stirring shaft of a first dissolving cavity, two wing-shaped blades are respectively arranged on stirring shafts in a second dissolving cavity and a third dissolving cavity, three ultrasonic generators are respectively arranged on the inner walls of dissolving tanks in the three dissolving cavities, slag discharging pipes are arranged at the bottom ends of the dissolving tanks in a penetrating manner, and slag discharging pipe valves are arranged on the slag discharging pipes. The dissolving and adding system is used for dissolving and processing process.

The invention discloses a solid dissolving and injecting system with the circular flushing and accurate dissolution control functions. The solid dissolving and injecting system comprises a spray flushing and dissolving pond with the upper portion opened, a spray head is correspondingly arranged above an opening of the spray flushing and dissolving pond and is connected with a spray water supply pipeline, and a spray tank filtering net is laid in the spray flushing and dissolving pond and divides the spray flushing and dissolving pond into an upper spray flushing and dissolving pond body and a lower spray flushing and dissolving pond body; a dissolving solution collecting pond is arranged below the spray flushing and dissolving pond and is connected with a dissolving solution injecting pipeline, a spray flushing and dissolving pond outlet is formed in the bottom of the lower spray flushing and dissolving pond body, and the dissolving solution collecting pond is connected with the spray flushing and dissolving pond outlet. By means of the own hydrodynamic force of the head of an irrigation system, solid fertilizer (pesticide) is dissolved and injected, circular flushing and accurate control are achieved, and it is ensured that being dissolved thoroughly, the solid fertilizer or pesticide does not block a drip irrigation pipe.

The invention discloses a temporary plugging diverting agent as well as a preparation method and application thereof. The temporary plugging diverting agent is prepared from the following raw materials: polyglycolic acid with a first weight-average molecular weight and polyglycolic acid with a second weight-average molecular weight, wherein the difference between the second weight-average molecular weight and the first weight-average molecular weight is not less than 10,000 and not greater than 290,000; the polyglycolic acid is a homopolymer of glycolic acid, and / or a copolymer taking glycolicacid as a main repeating unit. The temporary plugging diverting agent can be used for temporary plugging diversion fracturing of oil and gas wells.

The invention belongs to the field of natural high polymer materials, and relates to a method for preparation and wet spinning of a regenerative keratin solution. The method comprises the following steps of: degreasing raw materials of coarse animal hairs, wools and waste wool textiles by using a non-ionic surface active agent, wherein the coarse animal hairs include pig hairs, sheep wools, rabbit hairs, camel hairs, yak hairs and the like, and the wools and waste wool textiles do not have spinning and weaving utility values; grinding the raw materials into nano-scale superfine powder by using a superfine grinding technology; fully swelling the keratin superfine powder by using a mixed solution of ZnCl2 and urea, wherein the mixed solution has a swelling function; and dissolving the fully-swelled keratin superfine powder by using an ionic liquid of 1-butyl-3-methylimidazole chloride or 1-ethyl-3-methylimidazole diethyl phosphate to obtain a regenerative keratin spinning solution which has the characteristics of high keratin concentration, complete dissolution and high molecular weight, and regenerative keratin fibers can be obtained by adopting wet spinning. By adopting the method, waste resources are recycled, so that the method has broad prospects and application values, and accords with the current research concept and direction of environmental protection.

A solid reagent dissolving device including a flexible layer; an upper plate disposed on the flexible layer; and a lower plate disposed under the flexible layer, wherein the upper plate comprises a plurality of minute channels, a dissolution chamber connected with the plurality of minute channels, and a protrusion for limiting a flow of a fluid flowing through one of the plurality of minute channels, the lower plate comprises a plurality of penetration holes that correspond to the protrusion and the dissolution chamber, respectively, and one side of each of the plurality of penetration holes, the plurality of minute channels, and the dissolution chamber are covered with the flexible layer, and method of using same.

The invention belongs to the technical field of test of metallurgical materials, and particularly relates to a method for synchronously measuring various elements in the metallurgical sundries. The method for synchronously measuring various elements in the metallurgical sundries comprises the following steps: (1) processing a sample; (2) drawing a working curve; and (3) measuring the test sample. According to the method for synchronously measuring various elements in the metallurgical sundries, the proper sample processing method is selected, the substrates are flexibly matched, and the parameters of instruments are reasonably optimized, so that the accuracy in measurement of the various elements in the metallurgical sundries under different species and wide scope can be ensured.

The invention belongs to the technical field of treatment of industrial waste residues and particularly relates to a device for extracting residual saline matters from the industrial waste residues. The device comprises a base, wherein a shell body is fixedly mounted at the top of the base, two crushing rollers are symmetrically and rotatably mounted in the shell body, one end of each crushing roller extends out of the shell body and is fixedly provided with a gear, a first motor is fixedly mounted at one side of the shell body, an output shaft of the first motor is fixedly connected with onegear, a screen supporting frame is rotatably mounted in the shell body, a screen is fixedly mounted on the screen supporting frame, a second motor is fixedly mounted in the shell body, a cam is fixedly mounted on an output shaft of the second motor and is in contact with the screen supporting frame, and a first spring is fixedly mounted in the shell body. The device is high in practicability and can be used for carrying out dissolving and filtering, and thus, the recovery cost is reduced; and meanwhile, the waste residues can be crushed, the dissolving is high in speed and is complete, and thus, the recovery rate is increased.

The invention belongs to the field of medical embolization devices, relates to a sodium alginate microsphere targeted vascular embolization agent containing an antineoplastic drug and a preparation method thereof. Alginic acid is taken as a pharmaceutical carrier, the antineoplastic drug etoposide is a pharmaceutical active ingredient, divalent metal cation or calcium ion solution is taken as a solidifying agent, and the sodium alginate encapsulates the etoposide to prepare ideal particle size-controllable sodium alginate microspheres comprising the etoposide, thus avoiding toxic side effect of traditional etoposide administration such as anaphylaxis and inconvenience. The vascular embolization agent changes the dosage form and route of administration way of the antineoplastic drug etoposide, has high efficacy and low toxicity, and is safely and effectively applied to clinical application. The vascular embolization agent has the advantages of mild preparation condition and simple and convenient operation, and is fit for large-scale production. The vascular embolization agent can be used for vascular embolization, local targeted tumor treatment, and treating small-cell carcinoma of the lung, oophoroma, carcinoma of testis, gastric cancer and liver cancer by administering the vascular embolization agent during operations.

The invention relates to freeze-dried molded articles containing magnesium ascorbyl phosphate and alginate as well as optionally one or more active substances and / or auxiliary substances. Furthermore, the invention relates to methods for manufacturing these freeze-dried molded articles, the combination of such freeze-dried molded articles in kit-of-parts arrangements together with aqueous solutions, as well as the use of the freeze-dried molded articles and the kit-of-parts combinations for pharmaceutical and cosmetic application.

The invention belongs to the technical field of dairy products, and relates to composite black grain fermented milk containing dietary fibers and probiotics and a preparation method. The composite black grain fermented milk and the preparation method thereof are characterized in that black grains comprise black sesame seed powder, black rice powder, black bean powder, black corn flour and coarse rice powder, and the specific formula of the composite black grain fermented milk comprises the following components in percentage by mass: 0.8-1.3% of the black sesame seed powder, 1-1.2% of the blackrice powder, 0.4-0.6% of the black bean powder, 0.8-1% of the black corn flour, 1-1.2% of the coarse rice powder, 80-85% of liquid milk, 6-8% of white granulated sugar, 1-1.5% of an emulsion stabilizer, 0.009-0.012% of species, 1% of polydextrose, 0.05-0.09% of an enzyme preparation and the balance of water. The composite black grain fermented milk is a compound protein fermented milk formula which is rich in flavor, and in which the content of dietary fibers is greater than 1.5.

The invention discloses a method for determining a content of pramipexole in pramipexole dihydrochloride sustained-release tablets by adopting high performance liquid chromatography, and belongs to the technical field of pharmaceutical analysis. The method comprises the following steps: dissolving a test sample by adopting two diluents, taking octadecylsilane chemically bonded silica as a chromatographic column, and taking a buffer solution formed by potassium dihydrogen phosphate and sodium octanesulfonate; and taking acetonitrile as a mobile phase to determine the content. Methodology verifies that the method can effectively determine the content of the test sample, and the method can completely extract the main drug in the sustained release tablets, and is simple to operate.