160results about How to "Rapid concentration" patented technology

In a liquid-cooled semiconductor unit having one or more semiconductor modules and a plurality of cooling tubes arrayed in parallel, with each semiconductor module sandwiched between a pair of cooling tubes, a coolant supply header for supplying a flow of liquid coolant through respective flow passages in the cooling tubes and a coolant discharge header for discharging the liquid coolant from these coolant flow passages, each of the cooling tubes is disposed with an outlet end aperture portion thereof located at a higher elevation than an intake end aperture portion thereof.

The present invention discloses a filling device and filling process, wherein the filling device includes: a deep cone thickener used for storing and concentrating tailing paste; a cementing material storehouse used for store cementing material; a stirring device used to receive concentrated tailing paste and cementing material from the deep cone thickener and the cementing material storehouse to mix them and stir to obtain filling paste; and a conveyer used for receiving filling paste from the stirring device and conveying the filling paste to mine goaf. By using deep cone thickener, the filling device through the invention has better concentrating efficiency, higher concentrating degree without using a filter for moisture abstraction operation to concentrated tail paste, hence the device is simple and cost low.

The invention relates pseudomonas, use thereof and a method for removing cadmium pollution to the environment. The pseudomonas class is named pseudomonas putidaHN103 and the collection number in a collection center is CCTCCNo.M2011184; and the shape and characteristics of the pseudomonas putidaHN103 comprise: 1) on a culture medium, a bacterial colony which used to be colorless and transparent turns white, smooth and convex-like with irregular edges; and 2) according to the result of bacterial microscopic examination, pseudomonas belongs to brevibacterium and is gram negative. The use of the bacteria is the use of the bacteria as a biological repair material for removing cadmium pollution. The method for removing cadmium pollution to the environment comprises the following steps: 1) regulating the cadmium ion concentration in sewage to a range in which pseudomonas can grow normally; 2) placing pseudomonas; 3) keeping the pseudomonas in the sewage for a certain time period; and 4) removing bacterial absorbing cadmium ions. The pseudomonas requires small investment, is low in cost, high in adaptability and capable of effectively removing cadmium, can quickly and obviously lower the concentration of cadmium ions in the environment and is suitable for biological remediation environments polluted by cadmium.

The invention discloses a technique for preparing antimicrobial peptide by using Bacillus subtilis, belonging to the technical field of bioengineering. By using Bacillus subtilis BRT39 capable of generating broad-spectrum high-efficiency antimicrobial peptide as a production strain, liquid seed preparation, fermentation liquid preparation, fermentation liquid pretreatment, antimicrobial peptide extraction and refinement, antimicrobial peptide dry powder preparation and other techniques are carried out to prepare the high-purity antimicrobial peptide finished product, wherein the activity recovery rate is up to higher than 43.5%. The invention has the advantages of simple technique, high yield of antimicrobial peptide, and high purity; the prepared antimicrobial peptide dry powder belongs to a natural antimicrobial agent and has no toxic or side effect, and thus, can be used as a food preservative, feed additive, agricultural biological control agent or animal disease preventing agent; and the antimicrobial peptide has the advantages of no toxicity, no residue, no drug resistance and high safety.

A micro vapor chamber includes a first plate and a second plate. The first plate has a condensing region constituted of a plurality of protrusions. The second plate has a plurality of liquid-collecting regions and an evaporating region. The condensing region is located to correspond to the liquid-collecting regions and the evaporating region. The first plate is arranged to cover the second plate. The condensed working fluid are quickly collected on the protrusions to flow back to the evaporating region, thereby improving the liquid-vapor phase circulation of the working fluid in the micro vapor chamber greatly.

This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and / or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

The invention discloses a deep cone thickener, which comprises a main body, a stirrer device, a drive set, and a circulating system. The main body comprises an upper cylinder part, a cone part which is positioned below the upper cylinder part, and a lower cylinder part which is positioned below the cone part; the stirrer device is arranged in the main body; the drive set drives the stirrer device to rotate so as to stir a ground paste in the main body; and the circulating system is arranged outside of the main body, and makes the lower part of the lower cylinder part be communicated with the upper part of the lower cylinder part and the upper cylinder part respectively, so as to convey the ground paste to the upper cylinder part and / or the upper part of the lower cylinder part from the lower part of the lower cylinder part. The deep cone thickener has an upper and lower dual circulating system, has an arch breaking effect to prevent raker holding when in the upper circulating, and can accelerate sedimentation of the ground paste in the cone part when in the lower circulating, so as to achieve the effect of fast concentration and improve thickening efficiency.

The invention provides a process for ore pulp desliming and ore slurry dehydration, which relates to a mineral processing process. The process comprises the steps of: a, removing large dreg of ore pulp raw materials by using a dreg separation sieve; b, removing impurities of the ore pulp raw materials without the large dreg by adopting a sorting filter and enabling the ore pulp raw materials to enter a sorting machine to be subjected to desliming and selection to obtain deslimed ore pulp and ore slurry; c, enabling the deslimed ore pulp to enter a floating selection procedure; after removing the impurities of the ore slurry with a dehydrating filter, enabling the ore slurry to enter a dehydrating machine to be concentrated and dehydrated so as to obtain concentrated ore slurry and reusable process pure water. The process is simple and reliable; the concentration and the grade of the ore slurry are improved and the desliming is complete; rapid concentration and dehydration of the ore slurry are realized; the process has important effects in the aspects of improving the stability of selection work and the grade and the recovery rate of ore concentrates, reducing the use amounts of a floating selection medicament and pure water and the like.

A dishwasher includes a tub defining a washing chamber, and a door rotatably connected to the tub. The door includes a door cover and a door liner connected to a rear side of the door cover. A condenser is disposed between the door cover and the door liner to condense stream, and a fan assembly sucks steam inside the tub and supplies the sucked steam to the condenser.

A dishwasher includes a tub defining a washing chamber, a door for opening / closing the tub, a condenser provided inside the door to condense steam discharged from the tub, a fan assembly connected to the condenser, and an outside air guide for supplying outside air to the fan assembly. The fan assembly includes a discharge opening through which steam from inside the tub is discharged into the condenser.

Apparatus and method for mass producing a unique dining experience for each individual diner within a group of patrons includes computers, applications software, models and databases. Through various alternative input mechanisms, each individual patron's preferences will be surveyed, and the results of the surveys are stored within the database. Staff and management of an establishment are also surveyed regarding various personal and facilities capabilities and assets. The preference surveys may be quite basic in nature, but with more detailed surveys a more elaborate model may be generated. Based upon the preference survey results, a dining event is developed that groups patrons according to areas of agreement among surveys, while simultaneously tailoring unique events or decor based upon the preference survey results that are not common among the patrons. The dining event is prepared for, including training of staff and management, and the dining event is then staged. During the event, an off-site person will most preferably provide monitor and provide feedback to the staff and management, and subsequent to the event further evaluation will occur. Based upon the event results and evaluation, the database and model may be updated. Electronic devices may form a part of the apparatus, and in this case will most preferably be controlled by computerized components to perform appropriately according to the stored model of the event. As a result of the differences in preferences, skills and assets of all participants, no two dining events will be identical. However, each dining event is designed and prepared according to pre-established models to fulfill each of the needs and expectations of each individual patron while simultaneously capitalizing on the strengths and talents of a staff and facility. Simultaneously, the managerial burden of maintaining a single atmosphere within an establishment is relieved, and patrons are offered unexpected, but consistently high-quality, dining experiences.

A test method for the concentration of organic additive in electroplating solution comprises: comparing the peak potential of an organic additive in an object electroplating solution with a standard curve of the organic additive, to determine the concentration of the organic additive in the object electroplating solution, wherein the standard curve of the organic additive reflects the relationship between the concentration and the peak potential of the organic additive in the object electroplating solution, and the peak potential is tested by cyclic volt-ampere dissection method or cyclic pulse volt-ampere dissection method. The test method on the concentration of organic additive in electroplating solution is simple and fast with low error.

The invention discloses a preparation method of modified magnetic composite nano particles and application thereof in pesticide detection. Magnetic composite Fe3O4@SiO2@Ag@COOH NPs are combined with an Au film to form an SERS substrate for effectively detecting trace thiaform bacteria. The Fe3O4@SiO2@Ag@COOH NPs have the same shape, good dispersibility and a core-shell structure, and can be quickly separated from the external magnetic field, so that thiabendazole is enriched. In addition, since LSPR of the Au film is coupled to the SPPs of the Ag particles, the SERS is further enhanced, the sensitivity of the detection is improved, and the rapid detection down to a concentration of 1[mu]g / L is realized.

The present invention provides a nanometer probe system for tubercle bacillus detection, and a preparation method for the nanometer probe, and further provides a tubercle bacillus detection method based on the nanometer probe system and the preparation method. The nanometer probe system comprises an integrated nanometer material probe and immunomagnetic beads, wherein the integrated nanometer material probe, the immunomagnetic beads and tubercle bacillus thallus are combined through specific ligands to form a tertiary complex, a magnetic field effect is adopted to rapidly and accurately separate and concentrate the tubercle bacillus and the integrated nanometer probe, a fluorescence signal on the integrated probe is detected, and the detection signal can be significantly amplified through magnetic enrichment and quantity difference between polypeptide sites and fluorescence quantum dots on the integrated nanometer probe so as to achieve accurate, highly sensitive and specific tubercle bacillus detection.

The invention discloses an extrusion dewaterer, which comprises a slantly-arranged tunnel screw extruder, wherein the tunnel screw extruder comprises a tunnel, a screw extrusion shaft arranged in a tunnel and blades of the screw extrusion shaft; the lower end of the screw extruder is provided with a sludge inlet, while the higher end is provided with a sludge outlet; and a water tank is arranged below the screw extruder, and is communicated with the screw extruder through a water-falling hole at the bottom of the tunnel. The tunnel screw extruder is provided with a plurality of sets of mutually-matched fixed rings and moving rings, wherein the fixing rings are fixed on the inner wall of the tunnel, a moving ring is arranged in a clearance between each two fixed rings, a clearance is formed between the internal circumferential surfaces of the fixed rings and the moving rings and the blades of the screw extrusion shaft, and axial clearances between the fixed rings and moving rings gradually decrease from the sludge inlet to the sludge outlet. The extrusion dewaterer has the advantages of simple structure, simple and convenient operation, and high solid-liquid separation rate, and avoids the problem of blocking skillfully.

An explosion forming apparatus (10) that preferably utilizes a shock wave (42) directed along a work piece (12) to progressively conform the work piece to a contour die cavity (44).

The invention discloses a microfluidic syringe filter head and a use method thereof. The filter head uses a microfluidic technology to concentrate and enrich micro-particles or cells, wherein a spirally extending micro-flow channel and a Y-shaped forked flow channel communicated with the micro-flow channel are formed inside the filter head; micro-particles of sample liquid are subjected to dragging force in a flowing direction, and are also subjected to inertial lifting force and Dean dragging force perpendicular to a main flowing direction in the micro-flow channel; under coupling action of the two transverse forces, the micro-particles may be gradually focused to a wall surface on one side close to a spiral center to form a regular arrangement bundle and flow out along a branch inside the Y-shaped forked flow channel so as to collect the concentrated sample liquid. The micro-flow channel and the Y-shaped forked flow channel in the invention are arranged on the same plane so as to effectively reduce a volume occupied by the flow channels and benefit to miniaturization of the filter head; the filter head is simple in use method and suitable for use in the field and low-hardware configuration laboratory environments.

The invention provides a liquid vaporizing method and a device used for actualizing the method. The liquid vaporizing method comprises that: (1) the liquid is granulated; (2) the granulated liquid is heated so as to lead at least a part of liquid is vaporized. Methods of ultrasonic, sprinkling or spraying are used for granulating the liquid. The heating can be carried out by types of electric heating, fuel gas heating or flame heating. Therefore, equipment which uses the method can be used for humidifiers, solution concentration devices and steam power plants. By the liquid vaporizing method, faster vaporization of liquid can be realized with less energy consumption.

The invention relates to a purification method for extracting glycoprotein from rhopilema esculentum, comprising the following steps: adding a sodium chloride solution in a tissue smashing liquid obtained after fresh rhopilema esculentum is smashed, and extracting; then, concentrating by using a hollow cellulose film; adding ethanol after the concentration; freeze-drying a generated sediment to obtain crude glycoprotein; purifying the obtained crude glycoprotein again through DEAE (Diethylaminoethyl) cellulose ion exchange column chromatography and gel column chromatography; and collecting eluent and freeze-drying to obtain purified glycoprotein of rhopilema esculentum. In the invention, the glycoprotein is extracted from a fresh rhopilema esculentum raw material by using a sodium chloride extract, thus, novel glycoprotein different from the past glycoprotein extracted from the rhopilema esculentum is obtained; the hollow cellulose film is used for concentrating, thus, compared with the traditional rotary evaporative concentration method, the purification method is capable of realizing low-temperature, mass and rapid concentration and has the effect of removing macromolecular impurities; and ion exchange and gel column chromatography are adopted in the following process, and the eluent is bi-distilling water, thus, the following desalting process is omitted, and the extracting and purifying efficiencies are increased.

A subtractive suppression hybridization (SSH) assay and uses thereof are described. In particular, methods of identifying and isolating nucleic acid sequences, which are unique for a certain cell, tissue or organism are provided, wherein said unique nucleid acid sequences are related to for example diseases genes. More specifically, SSH assays for unique genomic DNA sequences and improved SSH assays that are combined with 2D gel electrophoresis techniques are provided. The presented methods are particular useful for the identification of genes involved in the development of various diseases, including cancer, hypertension and diabetes as well as for monitoring animals and food, for example for infection agents and other contaminants.

The invention discloses a method for extracting panax notoginseng saponins by using a continuous countercurrent ultrasonic extraction combined film technology, belonging to the technical field of extraction and separation of plant effective components. The method mainly comprises the following steps of: adding 40-90 percent ethanol having 6-15 times by weight of the pseudo-ginseng crude powder and carrying out continuous countercurrent ultrasonic extraction for 20-120min at a temperature of 20-50 DEG C with the ultrasonic frequency of 20-80KHz; carrying out membrane concentration on filtering liquid by using 1,000-2,500 parts of ultrafiltration membrane or 100-800 parts of nanofiltration membrane at 20-50 DEG C under 0.4-4.1MPa; adding water into the liquid for diluting after the filtering liquid is subjected to pressure reduction and concentrating to be alcohol-free, or directly adding water for diluting; filtering macroporous adsorption resins and eluting with water, and eluting by using 50-90 percent ethanol; carrying out membrane concentration on peralkaline anion resins by using 100-800 parts of nanofiltration membrane under 0.4-4.1MPa; decoloring; carrying out pressure reduction and concentration; and spray-drying. With low-temperature extraction, high extraction ratio, continuous production and high purification ratio, the quality of the product is guaranteed and the method is simple.

The invention discloses a preparation method of high purity sulforaphene and belongs to the field of sulforaphene preparation. High purity sulforaphene is prepared from radish seed meal as a raw material by ethanol extraction, enzyme film reaction, chromatogram preparation and vacuum thin film evaporation. The preparation method has the characteristics of continuous production technology, simpleness, stability, high extraction and purification efficiency, high yield, high resource comprehensive utilization rate and no harmful substance discharge. In production, two enzymes are used as catalysts so that a sulforaphene enzymolysis yield is greatly improved. The preparation method of high purity sulforaphene has high purifying efficiency, realizes product purity of 98% or more and does not produce solvent residues. The high purity sulforaphene can be widely used in industries of medicines and health products.

The invention provides a data classification method based on deep learning and a graph establishment method. The data classification method comprises the steps of extracting core keywords in basic articles, calculating the weight values of the core keywords, establishing a first weight correspondence table, extracting the keywords of each basic article, calculating the industry matching degree of each article according to the first weight correspondence table to obtain a first matching degree threshold value, and iterating the basic article according to the first matching degree; repeating the steps according to the iterated article to obtain a second weight correspondence table and a second matching degree threshold value; and judging whether the new article belongs to the target industry or not by using the second matching degree threshold. According to the method, the keywords are extracted by using the basic article, the keywords are divided into the title keywords and the body keywords, and different regulatory factors are endowed, so that the industry matching degree can be more effectively calculated, more accurate replacement iteration is performed by using the article with higher matching degree, the space for storing historical data is released, and the optimal model is more quickly obtained.

This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and / or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.

The invention relates to a wastewater recycling device, in particular to a recycling device for printing and dyeing wastewater after purification. The technical problem to be solved by the present invention is to provide a recycling device for printing and dyeing wastewater after purification, which can effectively improve the coagulation effect, quickly concentrate and separate the pollutants in the dyeing pool, and improve the quality of the effluent. In order to solve the above technical problems, the present invention provides such a recycling device for printing and dyeing wastewater after purification, which includes a cart, a bracket, a first motor, a pole, a filter box, a first filter screen, a first valve, a water pump, a solution Box, first water outlet pipe, first connecting rod, first slide rail, compression cylinder, piston, disc, rack, sector gear, nozzle, second water inlet hose and water storage tank, etc., from left to The right is provided with brackets successively. The invention achieves the effects of improving the coagulation effect, rapidly concentrating and separating the pollutants in the dyeing pool, and thus improving the quality of the effluent.

A mirror-surface nanometer spraying solution and a spraying method are disclosed. The spraying solution comprises following three separated solutions: an A solution containing silver nitrate, a B solution containing glucose and an S solution containing sodium hydroxide, wherein the mass ratio of the sodium hydroxide to the silver nitrate in the A solution is 0.5-6:1. The spraying method is to separately spray the three solutions at the same time by adopting three spraying guns. The sodium hydroxide solution used for adjusting the pH value is not added into the A solution or the B solution, thus guaranteeing the lifetime and stability of the A solution and the B solution. The concentration of the sodium hydroxide is 2-6 times of the sodium hydroxide concentration in the prior art, thus largely increasing the speed of the silver mirror reaction, increasing the reduction efficiency and reducing the production cost. At a low temperature of 0 DEG C, the reaction speed can be high, and a silver layer is bright and white and free of fog. Normal production can be performed at 0-40 DEG C without the use of thermostatic equipment and silver layers with high quality can be deposited. The silver layers can be sprayed for many times and can be thick. The spraying solution and the spraying method are suitable for spraying of oversized workpieces.

The invention discloses a method for rapidly concentrating 16 polycyclic aromatic hydrocarbons in water. The method comprises the specific steps that after a water sample is subjected to liquid-liquid extraction, a Turbo Vap series full-automatic nitrogen blowing concentration instrument is adopted to concentrate methylene dichloride under the conditions of the temperature of 30-45 DEG C and nitrogen pressure of 4-13 psi and replace an acetonitrile solvent at the temperature of 50 DEG C, liquid chromatography detection is performed, the adding standard recovery can be 65.2-99.1%, and the quality control requirement for the recovery rate 60-120% of in-blank standard-addition components proposed by the HJ478-2009 standard of 'liquid-liquid extraction and solid-phase extraction high efficiency liquid chromatography for determining polycyclic aromatic hydrocarbons in water' is met. The nitrogen blowing concentration instrument is adopted to perform concentration and replace the acetonitrile solvent and is quicker, simpler and more convenient to operate than a rotary evaporation and nitrogen blowing mode, and a recovery effect is good. The method can be used for rapid concentration and accurate quantification of 16 polycyclic aromatic hydrocarbons in water.

The invention provides a surface enhanced raman spectrum based quick tetrodotoxin (TTX)detection method of tetrodotoxin (TTX). A nano Fe3O4 particle is adopted as a magnetic substrate; Fe3O4 is modified in sequence by using tetraethoxysilane (TEOS), 3-aminopropyltriethoxysilane and 3-mercaptopropyltriethoxysilane in sequence; a gold nano particle is adsorbed on a modified magnetic nano particle through the electrostatic adsorption of -NH2 and the action of a Au-S bond; a well assembled gold magnetic nano particle is integrally modified by using the TEOS and the 3-aminopropyltriethoxysilane; an immunocompetent gold magnetic nano particle is used as a raman substrate; RhB-ITC (Rhodamine B-Isothiocyanate) / anti-TTX is used as a raman signaling molecule; the quick detection is carried out on the TTX by utilizing a surface enhanced raman spectrometer; the detection limit can reach 0.01[mu]g / ml in under the condition that the gold magnetic nano particle is concentrated by an outer magnet; the detection linear range is 0.01[mu]g / mL to 0.5[mu]g / mL; the recovery rate of a detected sample is 82.64 to 92.60 percent; the relative standard deviation is 2.6 to 11.1 percent. The detection of the TTX has important significance in the aspects of food safety and medical science.

The invention relates to an electric field enhanced fast membrane concentration method and device, which relates to a method and a device for concentrating charged solute molecules, colloid molecules and particles in a solution by using membrane technology. Select a filter membrane with a molecular weight cut-off greater than that of the solute molecule or a pore size greater than the diameter of the particles. By applying a direct current electric field, the molecules or particles will undergo electrophoretic movement away from the membrane surface to improve the retention rate of the solute molecules and particles on the separation side of the membrane, while the solvent will penetrate quickly. Through the membrane, the rapid concentration of solute molecules or particles is realized. Compared with the conventional membrane concentration process, the invention can greatly reduce the concentration time, improve the concentration efficiency, significantly reduce the membrane pollution, and increase the service life of the membrane.