CLEANING /SCHWABBELEINHEIT FOR SEMICONDUCTOR PROCESSING DEVICE

Method for realizing continuous hydrolysis in production process of hydroxyl ethylidene diphosphonic acid

The invention provides a method for realizing continuous hydrolysis of acetylated hydroxyl ethylidene diphosphonic acid in the production process of hydroxyl ethylidene diphosphonic acid. The method comprises the following steps: phosphorus trichloride and glacial acetic acid are subjected to continuous tubular reaction and then enter a gas liquid separator to be separated, and a liquid-phase intermediate product acetylated hydroxyl ethylidene diphosphonic acid is sprayed from the top of a hydrolysis tower and encounters water vapor which ascends from the bottom of the tower to perform hydrolysis. The process realizes continuous hydrolysis of the acetylated hydroxyl ethylidene diphosphonic acid, and the obtained product has high quality and stable performance.

Pumpkin porridge for decreasing internal heat

The invention discloses pumpkin porridge for decreasing internal heat, which is composed of the following raw materials in parts by weight: 150-170 parts of rice, 50-70 parts of glutinous rice, 10-15 parts of walnuts, 15-20 parts of black sesame, 10-15 parts of malt, 40-55 parts of pumpkins, 20-30 parts of lotus roots, 10-15 parts of pigskins, 8-10 parts of crab spawn, 3-5 parts of dandelion, 3-5 parts of peach blossoms, 5-6 parts of mint, 2-3 parts of magnolia flowers, 2-3 parts of spreading hedyotis herbs, 2-3 parts of calathodes, 3-4 parts of Chinese mosla herbs, 8-10 parts of thamnolia vermicularis (Sw.)Ach.ex Schaer, and the like. In the pumpkin porridge for decreasing internal heat disclosed by the invention, food materials such as pumpkins, lotus roots, pigskins, crab spawn and the like are added, so that the nutritional ingredients of the porridge disclosed by the invention are enriched, and the porridge is delicious in taste; and due to the addition of extracts of dandelion, peach ...

Scale and corrosion inhibitor for high-alkalinity and high-hardness water

The invention discloses a scale and corrosion inhibitor composition with relatively low phosphorus content, which is special for high-alkalinity and high-hardness water. The composition comprises fatty alcohol-polyoxyethylene ether carboxylate, an organic phosphine scale and corrosion inhibitor, zinc salt and the balance of deionized water. The scale and corrosion inhibitor can be used for a cooling water system with high pH value, alkalinity, hardness and concentration multiple, and has a good corrosion inhibition effect on carbon steel.

Frame type elevator

The utility model discloses a frame type elevator. Including a machine frame, wherein a reciprocating conveying mechanism is arranged on the rack; a plurality of lifting supporting plates are arrangedon the reciprocating conveying mechanism at intervals; the reciprocating conveying mechanism drives the lifting supporting plate to move up and down in a circulating mode. Wherein the rack comprisesa bottom plate; two frames are symmetrically arranged on the two sides of the bottom plate. A plurality of connecting rods are connected between the two frames from top to bottom; the reciprocating conveying mechanism comprises a main shaft arranged below the rack, a grooved wheel is arranged on the main shaft, a lifting chain is arranged on the grooved wheel, the main shaft is connected with a driving motor, the driving motor drives the main shaft to rotate, and the main shaft drives the grooved wheel to rotate and drives the lifting chain to move up and down in a circulating mode. The weightand ...

Bellows sealing performance testing device

The utility model provides a bellows sealing performance testing device, include test bench, with the tubular product matched with shutoff of awaiting measuring, test bench is by the bottom plate andwelds the U type structure that the baffle on the bottom plate constitutes, the shutoff includes two outer ledge, and the pipe internal -diameter matched with boss that is equipped with on outer ledgeand awaits measuring is equipped with the concave station that is used for placing the sealing washer on the boss, cup jointed the sealing washer on the concave station, include still that the telescopic core is stifled, the core is stifled including two interior clamp plates and the bellows of welding in the middle of two interior clamp plates, the bellows inside be equipped with with the unilateral in clamp plate welded connection's stand pipe lie in the inboard position of bellows including, on the clamp plate and open and have flexible gas pocket, it has the measuring gas pocket to open in the ...

Electric power distribution cable spooler

The utility model discloses an electric power distribution cable spooler, including the base that sets firmly weighing apparatus, install the body frame on the weighting platform of weighing apparatus, rotate on the body frame to install and change the cover, it is equipped with the articulated swing arm to change the even ring in cover lower part, the swing arm middle part is crooked to changeing the cover center, the endwise slip cartridge has the center pin in changeing the cover, the center pin lower extreme has set firmly most advanced decurrent circular cone piece, the equipartition has the track that corresponds with the swing arm on the circular conical surface of circular cone piece, the swing arm middle part sets firmly the extension piece that directed orbit extends, extend the piece tip and install the fitting piece that to follow pathway movement, install main power plant on the body frame, an elevating devic, still install cutting device on the base, include still that control ...

Kondensations-Wäschetrockner

Ein Kondensations-Wäschetrockner umfasst eine Trocknungskammer, einen strömungstechnisch mit der Trocknungskammer verbundenen Kondensationskanal, eine Gebläsekammer und einen Heizkanal, wobei die Gebläsekammer und der Heizkanal in Luftströmungsrichtung hintereinander hinter dem Kondensationskanal geschaltet sind und der Heizkanal schließlich mit der Trocknungskammer verbunden ist. Dabei ist zwischen einem Austrittsende des Kondensationskanals und einem Eintrittsende der Gebläsekammer eine Wassersperrstruktur angeordnet. Das Kondenswasser kann sich unter Antrieb durch einen Luftstrom oft entlang der Wandung des Kondensationskanals nach oben bewegen. Wenn das Kondenswasser an die Wassersperrwand gelangt, stößt es gegen die Wassersperrwand, wodurch das Eintreten von Kondenswasser in den Heizkanal vermindert oder vermieden wird.

Ferrocene naphthyridine derivative and preparation and application thereof

The invention relates to a ferrocene naphthyridine derivative and preparation and an application thereof. The novel ferrocene naphthyridine derivative designed and synthesized by the invention is high in production rate and low in cost, and can effectively identify and absorb Hg<2+> in a liquid, also has a recognition effect on Cu<2+>, and has a broad application prospect in environmental purification.

Directional sequencing device for prawns

The invention discloses a directional sequencing device for prawns. The directional sequencing device mainly comprises a rack, an orientation mechanism, a vibration supplying mechanism and a conveying mechanism, wherein a sorting mechanism is aslant arranged on the rack, and comprises a bunker and a plurality of groups of orientation units arranged in parallel. The directional sequencing device completes the directional sequencing of the prawns in an upper sliding groove and a lower sliding groove by fully utilizing the physical characteristic of the prawns, a regular vibration force provided by the vibration supplying mechanism and the gravity of the prawns through arranging a curved surface of a direction selecting slide and a directional slide in the orientation mechanism, and is simple in structure and convenient to operate. The directional sequencing device for the prawns is capable of effectively realizing that the prawns are directionally sequenced and the prawns with same sizes ...

Sticky rice porridge capable of replenishing blood

The invention discloses sticky rice porridge capable of replenishing blood. The sticky rice porridge comprises the following raw materials in parts by weight: 180-200 parts of sticky rice, 20-30 parts of black rice, 70-90 parts of fragrant rice, 20-25 parts of corns, 10-15 parts of sesame, 20-25 parts of shredded crucian carp, 10-15 parts of cashew nuts, 20-25 parts of konjak, 15-20 parts of flammulina velutipes, 10-15 parts of green bean sprouts, 60-70 parts of mango juice, 8-10 parts of sorghum flour, 8-10 parts of coffee powder, 2-3 parts of beef bone meal, 3-5 parts of angelica, 5-6 parts of radix ophiopogonis, 3-4 parts of cinnamon and the like. The sticky rice porridge is rich in nutrition and can provide nutrients necessary for a human body due to addition of food materials such as the black rice, the crucian carp and the sesame, has certain effects of replenishing blood, keeping health and maintaining beauty due to addition of extracts of Chinese herbal medicines such as the angelica ...

Novel polymer water treatment reagent and synthesis method thereof

The invention provides a synthesis method of a novel polymer water treatment reagent. The polymer is synthesized by copolymerization of maleic anhydride and isopropenyl phosphonic acid in a solvent. With excellent thermal decomposition resistance, the polymer can be widely applied in industrial recycling cooling water of steel, electric power, fertilizer, petrochemical and other industries, as well as boiler, oilfield water injection and other fields.

Method for preparing antitumor traditional Chinese medicine tablets

The invention discloses a method for preparing antitumor traditional Chinese medicine tablets. The antitumor traditional Chinese medicine tablets are mainly prepared from the raw materials in parts by weight: 15 parts of rhizoma sparganii, 15 parts of spatholobus stem, 15 parts of slender dutchmanspipe root, 20 parts of astragalus root, 20 parts of barbat skullcap, 30 parts of valeriana jatamansi, 50 parts of hericium erinaceus, 1 part of leech, 1 part of cantharides, 1 part of dried wood-louse, 1 part of dung beetle, 1 part of centipede, 1 part of prepared turtle shell and 1 part of dried toad skin. According to the antitumor traditional Chinese medicine tablets, ingredients are comprehensive, complement one another and are used for strengthening the body resistance and fostering the root, repairing tissue cell regeneration and reversing disease cells to normal, and thus, benign tumors can be effectively treated; the traditional Chinese medicine has the advantages of convenience in preparation ...

Road surface line laser rut detection and identification method and processing system

The invention discloses a road surface line laser rut detection and identification method and a processing system. The detection and identification method includes the steps that road surface rut laser line images are collected; characteristic extraction is carried out on the images to obtain a ridge characteristic strength graph; in the characteristic strength graph, numerical values of each row of pixel grey levels in the images present a waveform curve, one or more waveform peak points exist in each curve, the waveform peak points are candidate points of points on a laser line rut and called ridge points, and waveform ridge points of each row of the pixel grey levels are continuously looked for one by one according to peak values to determine a rut laser line. According to the method, the rut laser line can be automatically and precisely extracted in real time, the processing system has high robustness and provides precise and reliable data for calculation of subsequent road surface ...

Power cable spooler

The utility model discloses a power cable spooler, including the base that sets firmly weighing apparatus, install the body frame on the weighting platform of weighing apparatus, rotate on the body frame to install and change the cover, it is equipped with the articulated swing arm to change the even ring in cover lower part, the swing arm middle part is crooked to changeing the cover center, the endwise slip cartridge has the center pin in changeing the cover, the center pin lower extreme has set firmly most advanced decurrent circular cone piece, the equipartition has the track that corresponds with the swing arm on the circular conical surface of circular cone piece, the swing arm middle part sets firmly the extension piece that directed orbit extends, extend the piece tip and install the fitting piece that to follow pathway movement, install main power plant on the body frame, an elevating devic, still install cutting device on the base, include still that control main power plant and ...

Embedded-based mobile robot video coding and remote monitoring system and method

The invention provides an embedded-based mobile robot video coding and remote monitoring system and a method, wherein, the system is composed of video acquisition parts, video coding parts, control processor parts and power parts, wherein, the video acquisition parts and the video coding parts are connected through corresponding interface circuits; the video coding parts are connected with the control processor parts through corresponding interface circuits; the control processor parts are connected with external Ethernet; the power parts are connected with the power input ports of other parts. The whole set of the system in the invention is based on an embedded processor platform, has simple structure, good video coding quality, high speed, strong data processing capabilities, small volume and low cost.

Aseptic pure air transfasion technology

The aseptic pure air transfusion technology uses one apparatus comprising transfusion support, medicine liquid bottle, netted bag, transfusion device and air bag. The air bag filled with bacteria-free air is matched with a pressurizing device, flow rate controlling valve in the outlet pipe and pipe union to the infusion device. Owing to the bacteria-free air, the present invention can avoid the influence of peripheral environment to complete the infusion in bacteria-free and pollution-free condition.

Callicarpae sponge for stopping bleeding of internal hemorrhoid surgery and preparation method of callicarpae sponge

The invention discloses callicarpae sponge for stopping bleeding of internal hemorrhoid surgery. The callicarpae sponge is prepared from the following main raw material medicines in parts by weight: 0.5-2.5 parts of callicarpae water extract, 3-9 parts of gelatin, 0.5-2.5 parts of 4% formaldehyde solution and 50-150 parts of water for injection. The raw materials selected by the callicarpae sponge for stopping bleeding of internal hemorrhoid surgery disclosed by the invention are low in construction cost, safe and effective, and the callicarpae sponge is specially developed aiming at bleeding of the internal hemorrhoid surgery on the basis of research of lots of pharmacopeia information and clinical tests, is obvious in effect and does not have any toxic or side effect.

REINIGUNGS-/SCHWABBELEINHEIT FÜR HALBLEITERBEARBEITUNGSVORRICHTUNG

Method for preparing p-hydroxybenzene methanal with Reimer-Tiemann reaction

The present invention provides a method used for preparing p-hydroxybenzaldehyde through Reimer-Tiemann reaction. In the method, phenol, chloroform, alkali and a phase-transfer catalyst react in a reaction medium to prepare the p-hydroxybenzaldehyde. The reaction medium can be one of water, methanol aqueous solution, ethanol aqueous solution, glycerin aqueous solution, benzene aqueous solution and toluene aqueous solution. The phase-transfer catalyst can be one of 201*4 resin, 201*7 resin, D301 Resin and D201 resin. The method has the following beneficial effects: (1) the cheap and easily prepared methanol aqueous solution, ethanol, glycerin and so on are used as the reaction solvent, which facilitates the heterogeneous reaction and the industrial production; (2) the D301 Resin, D201 resin and so on are used as the catalyst; thus the reaction can be easily controlled; the reaction yield is high; the catalyst can be recycled and reused; the cost is low; and the method facilitates the industrial ...

Production method for epoxy succinic acid copolymer water treatment agent

The invention discloses a production method for an epoxy succinic acid copolymer water treatment agent, and belongs to the field of water treatment medicament. The production method comprises specific process steps of: (1) adding maleic anhydride, acrylic acid, 2-acrylamide group-2-methyl propanesulfonic acid into a reactor, and using deionized water to dissolve; (2) regulating PH by 50% sodium hydroxide liquor while stirring; (3) carrying out water-bath heating, adding a catalyst, dropwise adding 30% hydrogen peroxide, controlling the PH value to carry out an epoxy reaction; and (4) increasing a reaction system temperature, adding calcium hydroxide, carrying out ring-opening polyaddition reaction, filtering to obtain yellow liquid which is epoxy succinic acid copolymer liquor after reaction is ended.

Scale and corrosion inhibitor for oilfield water injection and preparation method thereof

The invention discloses a scale and corrosion inhibitor for oilfield water injection, which is composed of the following components in percentage by mass: 10-20% of oxidized amino trimethylene phosphonic acid, 5-15% of terpolymer, 2-8% of imidazoline-ammonium-salt, 0.5-2 parts of sodium gluconate and the balance of deionized water, wherein oxidized amino trimethylene phosphonic acid is trimethylene phosphonic acid, and is synthesized by heating and oxidizing amino trimethylene phosphonic acid and hydrogen peroxide at a temperature of 60-90 DEG C under alkaline conditions; the terpolymer is maleic anhydride-acrylic acid-polyoxyethylene ether acrylate terpolymer.

Orchard profiling flower thinning device

The invention provides an orchard profiling flower thinning device which comprises a translation lifting mechanism, a three-point suspension device, a dip angle hydraulic cylinder, a turnover mechanism, an upper lifting mechanism, an angle adjusting mechanism, a flower thinning executing mechanism and a lower lifting mechanism. The three-point suspension device is fixed to the translation lifting mechanism, and the lower lifting mechanism is hinged to the translation lifting mechanism; the dip angle hydraulic cylinder is hinged to the lower lifting mechanism and the translation lifting mechanism, the upper lifting mechanism is connected with the lower lifting mechanism through the folding mechanism, the angle adjusting mechanism is fixedly connected with the upper lifting mechanism, and the flower thinning executing mechanism is installed on the angle adjusting mechanism. The device can be suitable for a trunk type orchard and a Y-shaped shed frame type orchard, and accurate adjustment ...

Sponge preparation for arresting bleeding of trauma

The invention discloses a sponge preparation for arresting bleeding of a trauma. The sponge preparation is characterized by being prepared from the following main raw materials in parts by weight: 7 parts of radix cirsii jeponici, 8 parts of flos chrysanthemi indici, 6 parts of radix scutellariae, 7 parts of radix isatidis, 1.5 parts of procaine and 20 parts of starch. A preparation method for the sponge preparation for arresting bleeding of the trauma, disclosed by the invention, is simple, and the selected raw materials are cheap and have a very remarkable bleeding arresting effect on the trauma, so that the sponge preparation can be used for excellently sterilizing and arresting bleeding.

Chemical mechanical planarization (CMP) system and method for preparing a wafer in a cleaning module

A method for preparing a wafer in a cleaning module is described. In this method, slurry is dispensed onto a surface of a wafer. Next, a chemical mechanical planarization (CMP) operation is conducted in the cleaning module by contacting a surface of a brush with the surface of the wafer. Subsequently, a cleaning operation is conducted in the cleaning module. A CMP pad and a CMP system also are described.

Take electrolytic device's shrimp cleaning machine

The utility model provides a take electrolytic device's shrimp cleaning machine mainly comprises electrolytic device, water pump, air pump, the board -like conveyer belt of taking the protection casing, frame, overflow launder, blowoff valve, washing tank etc. Add the shrimp raw materials or the washing tank is added to the conveyer belt through artifical, and the washing tank lower part is equipped with water shower nozzle, gas blowout head, the water shower nozzle with the water pump link to each other, the gas blowout head links to each other with the air pump, the water pump links to each other with electrolytic device, carry the washing tank with the little sour brineelectrolysis that has a bactericidal effect that the electrolytic device electrolysis goes out, under the effect of bubble and bubble, the shrimp body of washing tank is added and the motion of rolling will be done, the power impact shrimp body that the bubble breaks and produces, dirt with shrimp body surface face, mucus ...

Compound Callicarpa macrophylla Vahl sponge for surgical hemostasis, and preparation method thereof

The invention discloses a compound Callicarpa macrophylla Vahl sponge for surgical hemostasis. The compound surgical hemostasis sponge is prepared by using 0.5-2.5 parts by weight of a Callicarpa macrophylla Vahl water extract, 3-9 parts by weight of gelatin, 0.5-2.5 parts by weight of a 4% formaldehyde solution and 50-150 parts by weight of injection water. The compound Callicarpa macrophylla Vahl sponge for surgical hemostasis has the advantages of low cost of the selected raw materials, safety and effectiveness, is specially developed on the basis of researching a large amount of pharmacopoeia data and clinical tests for internal hemorrhoid surgical hemostasis, and has obvious effects and no toxic side effects.

Preparation method for sponge preparation for arresting bleeding of trauma

The invention discloses a sponge preparation for arresting bleeding of a trauma. The sponge preparation is characterized by being prepared from the following main raw materials in parts by weight: 4 parts of radix cirsii jeponici, 5 parts of flos chrysanthemi indici, 3 parts of radix scutellariae, 4 parts of radix isatidis, 0.8 part of procaine and 13 parts of starch. A preparation method for the sponge preparation for arresting bleeding of the trauma, disclosed by the invention, is simple, and the selected raw materials are cheap and have a very remarkable bleeding arresting effect on the trauma, so that the sponge preparation can be used for excellently sterilizing and arresting bleeding.

Correction glasses are neglectd to unilateral

The utility model relates to a correction glasses are neglectd to unilateral, including mirror holder and lens, the mirror holder includes two picture frames that horizontally connect is in the same place, and the both sides of picture frame are connected with the mirror leg respectively, and the junction of picture frame and mirror leg is provided with colored LED lamp respectively, and the inboard of mirror leg is provided with the groove that is used for placing button cell, and the outside of mirror leg is provided with shift knob, is provided with the separation blade that can remove on the picture frame. The utility model discloses simple structure, the design is compact, and convenient to use combines certain training method can effectually improve the symptom that the unilateral is neglectd, and the colored LED lamp of picture frame both sides is used for reminding the patient, and the separation blade can remove and be used for adjusting the sight scope of sheltering from, in time ...

Electronic card connector

The utility model provides an electronic card connector comprising a terminal module mounted on a printed circuit board, a metal shell which covers the terminal module, a card holder contained in the metal shell, and a card withdrawing mechanism installed at one side of the metal shell. The card withdrawing mechanism comprises a push rod, an actuating member and a riveting piece which rivets the actuating member to the metal shell. The push rod comprises a pushing part at a card insertion end and a rotation pushing part far from the card insertion end. The actuating member comprises a shaft part, a pushing and pressing part which extends from one end of the shaft part and presses against the pushing and pressing part, a card pushing part which extends from the other end of the shaft part and is in contact with the card holder. The actuating member is rotated around the riveting piece. The bottom of the riveting piece and the printed circuit board are welded to form a welding part. The card ...

Method for reducing by-product acrylic acid in acrylamide production by biological method

The invention relates to a method for reducing acrylic acid which is a by-product in the production of acrylamide by a biological method. Firstly, original solid medium (main ingredients: glucose, yeast extract, sodium chloride, magnesium sulfate, dipotassium hydrogen phosphate and agar) is utilized to carry out the preliminary screening of producing strains, the strains with the enzyme producing ability of 1200 multiplied by 104 ugAAm/ml.h are used as the preliminary qualified strains, then the preliminary qualified strains are added with acrylamide accounting for 0.1 to 0.5 percent of the total mass of the medium form new solid medium on the basis of the original solid medium to carry out the secondary screening; the producing strains of low-yield acrylamide are selected on the new solid medium to prepare biological catalyst which is used as the catalyst in the hydration of acrylonitrile. The method can reduce the acrylic acid content and the electric conductivity of the reaction liquid ...

Guide sleeve of cast iron sand box

The invention discloses a cast iron sand box guide sleeve which comprises a guide sleeve body, a dispersing mechanism is arranged in the guide sleeve body and comprises a supporting block and a plurality of dispersing blades, and a supporting shaft is connected between the supporting block and the guide sleeve body through a bolt; the multiple dispersion blades are annularly distributed at the bottom of the supporting block at equal intervals through hinges, the outer wall of the top of the supporting block is connected with a first spring through a bolt, the outer wall of the top of the first spring is connected with a tray through a bolt, and the outer wall of the top of the tray is connected with a rotating shaft through a bolt; and a dispersing plate is rotationally connected to the top position of the outer wall of the rotating shaft through a bearing. Raw materials can be prevented from being accumulated in the guide sleeve to cause blockage in the guide sleeve, and the accumulated ...

Novel vegetable grafting machine centre gripping device

The utility model discloses a novel vegetable grafting machine centre gripping device, including frame, drive part, driving element, execution unit. Set up the grafting that 6 working cells carry out6 12 72 cave plug seedling in the frame side by side to be equipped with the cylinder of drive working cell work. Wherein the working cell is final controlling element, comprises holding frame, elastic rubber, sponge, left and right sides spout, left and right sides slider, pillar, supporting shoe. The utility model discloses during the use, the cylinder drives the working cell of arranging side by side, and meanwhile the push -and -pull rod promotes the bull stick and winds pillar clockwise rotation, and the holding frame opens. When the seedling reachd the assigned position, the push -and -pull rod promotes the bull stick, and the holding frame began the closure around pillar counter -clockwise turning, this moment. The existence of elastic rubber and sponge can reduce the damage ratio of ...

Preparation method of low-chloride low-ammonia amino trimethylene phosphonic acid

The invention provides a preparation method of low-chloride low-ammonia amino trimethylene phosphonic acid. A synthesis method comprises the steps of adding phosphorous acid and ammonium chloride into a reaction kettle, increasing the temperature, dropwise adding formaldehyde and maintaining backflow; after dropwise adding, preserving heat in a backflow state; after the heat preservation, performing negative-pressure external steaming until the solid content is over 80%; adding reverse osmosis water, increasing the temperature and performing negative-pressure external steaming until the solid content is over 80%; repeating the steps; after the product is qualified by detection, adding water for dilution until the solid content meets the requirement. The amino trimethylene phosphonic acid prepared by the method provided by the invention has the characteristics of low chloride content and low ammonia content (the content of chlorides based on Cl<-1> is less than or equal to 0.5%, and the ...

Oil-soluble scale and corrosion inhibitor and synthesis method thereof

The invention relates to an oil-soluble scale and corrosion inhibitor. The oil-soluble scale and corrosion inhibitor is fatty amine dimethylene phosphonic acid in which R in the formula is aliphatic hydrocarbon of C4-18; the synthesis method of the oil-soluble scale and corrosion inhibitor comprises the following steps of adding fatty amine and formaldehyde to a reactor, and adding deionized water and a solvent, stirring, controlling the temperature, dropwise adding phosphorus trichloride, after the dropwise addition is completed, raising the temperature, continuously reacting under reflux and distilling hydrogen chloride as a by-product and unreacted formaldehyde under a reduced pressure to obtain a colorless to orange-red liquid, namely the fatty amine dimethylene phosphonic acid solution.

Mung bean paste with spirulina platensis

A mung bean paste with spirulina platensis includes following raw materials, by weight, 200-230 parts of the spirulina platensis, 20-30 parts of fragrant rice, 20-25 parts of peanuts, 20-30 parts of chestnut kernels, 60-70 parts of apple vinegar, 30-40 parts of ketchup, 20-25 parts of pleurotus eryngii, 20-25 parts of potatoes, 20-25 parts of cichorium endivia, 10-15 parts of oat meal, 20-25 parts of non-dairy creamer, 10-15 parts of black tea, 3-4 parts of gynostemma pentaphyllum, 3-4 parts of the spirulina platensis, 4-5 parts of rhizoma phragmitis, 4-5 parts of radix ophiopogonis, 4-5 parts of orange peels, 4-5 parts of peach blossoms, 4-5 parts of platycodon grandiflorum, 3-4 parts of seaweeds, 3-4 parts of butterflybush flowers, 2-3 parts of trichosanthes kirilowii leaves, 3-5 parts of chrysanthemum and the like. The mung bean paste with the spirulina platensis is prepared with addition of natural food materials, such as the chestnuts and the potatoes, so that the mung bean paste is ...

Amino trimethylene phosphonic acid-N-oxide and preparation method thereof

The invention provides an oxide agent for water treatment and particularly discloses amino trimethylene phosphonic acid-N-oxide and a preparation method thereof. The amino trimethylene phosphonic acid-N-oxide is prepared by virtue of the following steps: preparing amino trimethylene phosphonic acid-N-oxide by use of phosphorous acid, ammonium chloride and formaldehyde and then reacting amino trimethylene phosphonic acid-N-oxide with hydrogen peroxide. By utilizing a product, the problems of scale and corrosion inhibition of an oxidative sterilizing algicide aqueous system are solved, and the compound property with liquid chlorine, sodium hypochlorite and organic chlorine and the like is good; the dispersing and inhibiting capabilities of the amino trimethylene phosphonic acid-N-oxide provided by the invention to calcium scale and the like are superior to those of amino trimethylene phosphonic acid.

Preparation method and application of DNA (Deoxyribose Nucleic Acid) detection probe carrier

The invention discloses a vector for preparing a DNA (deoxyribonucleic acid) detection probe, a construction method and application of the vector. The carrier is Pt/Ti < 3 > C < 2 > T < x > nano-particles and is prepared by reducing and loading platinum nano-particles by using a two-dimensional material Ti < 3 > C < 2 > T < x >, and a reducing agent does not need to be additionally added. The initial color of the Pt/Ti3C2Tx nano-particles is dark, and the Pt/Ti3C2Tx nano-particles have good peroxidase-like catalytic activity, so that the Pt/Ti3C2Tx nano-particles can be introduced into the lateral flow chromatography biosensor as a bifunctional signal tag, and the signal tag adopts an aggregation signal amplification technology and a catalytic signal amplification technology to improve the sensitivity and the accuracy of the lateral flow test strip biosensor. In addition, the Pt/Ti3C2Tx nanoparticles are used as a signal carrier to mark SH-DNA through a Pt-S bond to prepare a probe, the ...

Special fertilizer for beer barley drip irrigation, and preparation and application method thereof

The invention provides a special fertilizer for beer barley drip irrigation during the vegetative growth period and a preparation method thereof according to the demands on fertilizers during the vegetative growth period of beer barley. The special fertilizer for beer barley drip irrigation is prepared by the following raw materials in part by weight: 352-418 parts of urea, 320-345 parts of monoammonium phosphate, 192-224 parts of potassium nitrate, 4-120 parts of citric acid, 3-5 parts of boric acid, 4-6 parts of EDTA chelated ferrum and 2-5 parts of EDTA chelated zinc. The special fertilizer and the preparation method thereof have the benefits that the formula is complete in nutrition, the demands of beer barley plants on various nutritive elements can be met, the nutritional status and the comprehensive resistance of the beer barley are basically improved, a foundation is laid for the high yield and the high quality of the beer barley, the high yield of the beer barley can be ensured ...

Physiochemical and biochemical interactive city sewage treating method

Efficient slime stripping sterilizing agent and preparation method thereof

The invention discloses an efficient slime stripping sterilizing agent which comprises three parts of quaternary ammonium salt, sulfonate and a nonionic hydrophilic group. A preparation method of the efficient slime stripping sterilizing agent comprises steps as follows: 1, tertiary amine is added into a reactor, and epichlorohydrin is dropwise added to obtain epoxy propyl ammonium chloride for standby; 2, p-styrenesulfonate/propenyl sulfonate is added into the reactor, deionized water is added, the PH value of the system is adjusted by a sodium hydroxide solution, 30% of hydrogen peroxide is added, and the mixture reacts to obtain epoxy ethylbenzene sulfonate/glycidyl sulfonate; and 3, the epoxy propyl ammonium chloride and fatty alcohol/alkylphenol polyoxyethylene glycidyl ether are added into the reactor of the step 2 to obtain ternary ring-opening co-polymer containing quaternary ammonium salt, sulfonate and the nonionic polyether group. The sterilizing agent can permeate into stubborn ...

Sarpogrelate hydrochloride single layer osmotic pump regulated-release preparations and preparation thereof

The invention relates to the medicine technical filed, in particular to a monolayer osmotic pump controlled release preparation of sarpogrelate hydrochloride and a preparation method thereof, which is characterized by lasting drug effect, constant curative effect, slight toxic and side effect. The monolayer osmotic pump controlled release preparation of sarpogrelate hydrochloride comprises by weight percentage of 1 to 40 percent of sarpogrelate hydrochloride, 30 to 90 percent of auxiliary material that can promote osmosis, 1 to 40 percent of membrane material that performs controlled release and the rest is other auxiliary material; the diameter of a small drug release hole is 0.1 to 2.0 mm. The preparation method comprises: a certain amount of drug according to the prescription is mixed with an adhesive, a bulking agent and a co-penetrant which are respectively ground and screened, prepared into soft material and palletized, dried and particle finished and then added with a lube and pressed ...

Chemical fertilizer stirrer with crushing function

The utility model discloses a chemical fertilizer stirrer with a crushing function. The stirring device comprises a stirring barrel and a motor fixedly connected to the outer side wall of the stirringbarrel, a crushing mechanism is arranged in the stirring barrel; the crushing mechanism comprises a first crushing shaft and a second crushing shaft; the first crushing shaft is in transmission connection with a second crushing shaft through a first transmission mechanism; the second crushing shaft is in transmission connection with the motor through a second transmission mechanism; a plurality of crushing blades are fixedly connected to the first crushing shaft and the second crushing shaft, a vibrating screen plate is movably connected to the interior of the stirring barrel, a transmissionshaft is installed on the outer side wall of the stirring barrel through a plurality of bearing seats, and the upper end of the transmission shaft is in transmission connection with a motor through agear ...

Applications for curing vertigo medicament

The invention discloses an application of glucoseamine in preparing drugs for treating vertigo, and belongs to the technology field of medicines. Through retroactive statistics and clinic experiments on human body, it is proven that glucoseamine has distinct therapeutic and improvement effects on vertigo.

High-efficiency sterilization composition of circulating water system

A high-efficiency sterilization composition of a circulating water system comprises the following ingredients by weight percent: 50-90% of a chitosan N-hydroxypropyl polyoxyethylene ether dialkyl halide, 1-10% of a releasing stuck agent and the balance being deionized water. In a structural formula of the chitosan N-hydroxypropyl polyoxyethylene ether dialkyl halide, n refers to integer from 100 to 600, m refers to integer from 10 to 30, R refers to -CH3, -CH2CH3, -(CH2)2CH3, -(CH2), CH3 or -CH2C5H6, and X refers to Cl, Br or I. The composition disclosed by the invention has the advantages of being safe and environmentally-friendly, biodegradable, free from toxi and low in drug resistance, and can be used for performing rapid penetration, sterilization and peeling on intractable slime in a pipeline, so as to enable the slime to be dispersed in water and discharged out of the system with water flow.

A CLEANING/BUFFING APPARATUS FOR USE IN A WAFER PROCESSING DEVICE

A semiconductor processing system, such as a system for buffing or scrubbing both sides of a wafer at the same time, that includes a processing box for use with chemical solutions, a positioning device to position a semiconductor substrate, or other similar semiconductor material or device, and a placement device to place a buffing pad or scrubbing brush. © KIPO & WIPO 2007 ...

Surface-mounted inductor geometric parameter measurement method and system

The invention discloses a method and a system for measuring geometric parameters of a chip inductor. The method comprises the following steps: acquiring a three-dimensional point cloud of an upper surface profile of the chip inductor; setting a single distance threshold to eliminate discrete noisy points in the point cloud; obtaining independent clustering point clouds of a sheet metal plane and a middle plane of the patch type inductor; carrying out the secondary plane fitting of the independent clustering point clouds through the RANSAC space plane fitting algorithm based on the point-surface distance, and solving the height difference from the plane of the metal sheet to the middle plane through two secondary fitting planes; and a space straight line of the critical positions of the two metal sheets is obtained by using a vertical distance-based RANSAC space straight line fitting algorithm, so that the distance between the two metal sheets is obtained. According to the method, discrete ...

Organic fluorine water-refusing oil-refusing finishing agent and preparation thereof

The present invention relates to one kind of organic fluoric water repellent and oil repellent finishing agent emulsion and its preparation. The emulsion is prepared with oxa perfluoroalkyl (methyl) acrylate monomer, higher fatty alcohol (methyl) acrylate monomer and cross-linking monomer, and through emulsion polymerization in the presence of emulsifier, co-emulsifier, chain transfer agent and initiator. It is applied for the water repellent and oil repellent finishing of fabric. It possesses excellent water repellent and oil repellent performance, and has small emulsion particle size, no harmful components, no smell, simple preparation process and low cost.

Device for splitting prawn back and removing prawn head

The invention discloses a device for splitting prawn back and removing prawn head. The device comprises a frame, several work units are arranged on the frame side by side, the frame is provided with a motor for driving the work units to work, and inclined prawn head slide plates are fixed to the work units. In use, prawn to be processed is conveyed by an orienting device and falls into the device in a way that the back faces down, and the motor drives the work units arranged side by side to realize continuous processing on the prawn. Through an ingenious design of the work units, prawn back splitting and prawn head removal are simultaneously carried out and the removed prawn head is fed into a collection device by the prawn head slide plates. The device has a compact structure, is convenient for operation, has reliable performances, ingeniously realizes synchronization of the prawn back splitting and prawn head removal and realizes the important task of prawn back splitting and prawn head ...

Purely-electric four-wheel drive type engineering machinery slipping chassis

The invention discloses a purely-electric four-wheel drive type engineering machinery slipping chassis. A left rear axle of the chassis is provided with a left rear wheel and a driven wheel IV, a right rear axle of the chassis is provided with a right rear wheel and a driven wheel III, a left front axle of the chassis is provided with a left front wheel and a driven wheel I, a right front axle of the chassis is provided with a right front wheel and a driven wheel II, and the middle of the chassis is provided with a shaft IV, a shaft I and another shafts IV. The shaft IV is provided with a fixed gear III. The shaft I and each of the other shafts IV are respectively provided with two idler gears and one driving wheel. A shaft II is provided with three fixed gears, wherein the middle fixed gear is meshed with the fixed wheel II in space, the idler gear IV is meshed with the idler gear I in space, and the fixed gears at the side edges are meshed with symmetric idler gears respectively. Bidirectional ...

Organic fluorine water-refusing oil-refusing finishing agent and preparation thereof

Training apparatus for rehabilitation of hand functional grasping and extending

The invention relates to medical rehabilitation instruments, in particular to a training apparatus for rehabilitation of hand functional grasping and extending. The training apparatus comprises two transverse fixtures parallel to each other and vertical fixtures fixedly connected to two ends of the transverse fixtures, respectively. The transverse fixtures and the vertical fixtures form a fixing support which is rectangular. Each vertical fixture is provided with a slide way. Two ends of a moving rod are fixedly limited in the corresponding slide ways; the moving rod is provided with finger fixing rings; a fixed rod is disposed within the fixing support; the fixed rod is parallel to the moving rod; a thumb fixing ring is fixedly connected to the fixed rod; the vertical fixtures are further provided with hydraulic pneumatic-support damping rods corresponding to the lower ends of the slide ways; the upper ends of the hydraulic pneumatic-support damping rods are fixedly connected with the ...

Rosin-based grafted polyaspartic acid and preparation method thereof

The invention discloses rosin-based grafted polyaspartic acid and discloses a preparation method and application in water treatment of rosin-based grafted polyaspartic acid. The rosin-based grafted polyaspartic acid has a structure shown in the specification, wherein R is rosin amine dehydrogenation residue and has a structure shown in the specification. The method for preparing the polymer comprises the following steps: (a) performing pyrocondensation polymerization on maleic anhydride and ammonia water to form PSI polysuccinimide; (b) carrying out a grafting reaction between polysuccinimide and rosin amine; (c) finally adding a solution of sodium hydroxide for fully hydrolyzing. The rosin-based grafted polyaspartic acid is green and environment-friendly and has excellent performances in a high-hardness, high-alkalinity, high-PH value and high-concentration factor system.

Multi-mode spraying device

The multi-mode spraying device mainly comprises a rack, a vertical adjusting mechanism, a horizontal moving platform and spraying rod rotating devices, the vertical adjusting mechanism is fixedly connected to the front end of the rack, the horizontal moving platform is installed at the top end of the vertical adjusting mechanism, and the spraying rod rotating devices are symmetrically and fixedly connected to the horizontal moving platform through nuts; the vertical guide rail is fixed on the rack, the horizontal moving platform is matched with the vertical guide rail through the bottom end welded T-shaped block to slide in the vertical direction, and the stepping motor and the worm gear reducer are vertically arranged on the left side of the horizontal moving platform; the multi-mode spraying machine can be adjusted according to the characteristics of different crops, fog drop loss is reduced to a greater extent through plant-by-plant spraying, the internal humidity of a facility environment ...

Integrated short-process efficient denitrification and phosphorus removal sewage treatment system and process

The invention relates to an integrated short-process efficient denitrification and phosphorus removal sewage treatment system and process. The integrated short-process efficient denitrification and phosphorus removal sewage treatment system comprises a water inlet regulation pond with a sand setting function, a three-dimensional combined flat plate type grating, a hypoxic preconditioning pond, an anaerobic pond, a single-channel oxidation ditch, a cage type filler system and an MBR system, wherein the cage type filler system and the MBR system are arranged in the oxidation ditch, and the MBR system has the functions of a secondary sedimentation tank. The water inlet regulation pond is connected with the three-dimensional combined flat plate type grating. The three-dimensional combined flat plate type grating is connected with the hypoxic preconditioning pond and the anaerobic pond. The hypoxic preconditioning pond is communicated with the anaerobic pond. The anaerobic pond is connected ...

Power cable ration recovery unit

The utility model discloses a power cable ration recovery unit, including the base that sets firmly weighing apparatus, install the body frame on the weighting platform of weighing apparatus, rotate on the body frame to install and change the cover, it is equipped with the articulated swing arm to change the even ring in cover lower part, the swing arm middle part is crooked to changeing the cover center, the endwise slip cartridge has the center pin in changeing the cover, the center pin lower extreme has set firmly most advanced decurrent circular cone piece, the equipartition has the track that corresponds with the swing arm on the circular conical surface of circular cone piece, the swing arm middle part sets firmly the extension piece that directed orbit extends, extend the piece tip and install the fitting piece that to follow pathway movement, install main power plant on the body frame, an elevating devic, still install cutting device on the base, include still that control main ...

Triacetin preparation method

The invention relates to a triacetin preparation method, which comprises that: glycerol and acetyl chloride respectively pass through a graphite tubular reactor, the tubular reactor is cooled by using salt water, a material enters a vapor-liquid separator from the tubular reactor to separate most of hydrogen chloride gas, and then enters a thermal insulation reaction kettle so as to be subjected to a thermal insulation reaction, reduced pressure evaporation is performed to remove the produced hydrogen chloride gas, and a falling film absorber is adopted to absorb the produced hydrochloric acid by-product. The preparation method has characteristics of no requirement of catalyst and water-carrying agent, clean production achieving, low cost, simple process, high product purity, high reaction efficiency and low energy source consumption.

Sewage primary sedimentation treatment method and system for removing intensified suspended solid inorganic component

The invention discloses a sewage primary sedimentation treatment method and a sewage primary sedimentation treatment system for removing an intensified suspended solid inorganic component. In a high-load primary sedimentation tank, water flow in the tank body flows upwards slowly and rotationally flows in a horizontal direction, a suspended solid component with higher content of inorganic components and relatively higher weight deposits at the bottom of the high-load primary sediment tank to be discharged as settled sludge, and a suspended solid component with lower content of inorganic components and relatively less weight is used as outflow water of the primary sedimentation system along with outflow water flow which flows upwards, so that the ratio of VSS to SS is increased and the ratio of SS to BOD5 is decreased, thereby improving integral efficiency of a subsequent biological treatment system, treatment efficiency and operation stability, and particularly reducing residual sludge ...

Pipeline type train operation protecting device

The invention discloses a pipeline type train operation protecting device which comprises a protecting device body. The protecting device body is composed of a plurality of arc armored concrete frameworks and armored concrete connecting transverse beams. The arc armored concrete frameworks are evenly erected above a rail track at intervals, the two sides of the arc armored concrete frameworks and roadbeds arranged on the two sides of the rail track are fixedly connected into a whole, the connecting transverse beams fixedly connect the arc armored concrete frameworks into an integral structure in series in sequence, the armored concrete connecting transverse beams located on the left side and the right side of the arc armored concrete frameworks are respectively provided with a safety limiting track respectively, and the two safety limiting tracks are in rolling connection with safety limiting wheels arranged on the two sides of a train. According to the pipeline type train operation protecting ...

Method for preparing p-hydroxybenzene methanal with Reimer-Tiemann reaction

The present invention provides a method used for preparing p-hydroxybenzaldehyde through Reimer-Tiemann reaction. In the method, phenol, chloroform, alkali and a phase-transfer catalyst react in a reaction medium to prepare the p-hydroxybenzaldehyde. The reaction medium can be one of water, methanol aqueous solution, ethanol aqueous solution, glycerin aqueous solution, benzene aqueous solution and toluene aqueous solution. The phase-transfer catalyst can be one of 201*4 resin, 201*7 resin, D301 Resin and D201 resin. The method has the following beneficial effects: (1) the cheap and easily prepared methanol aqueous solution, ethanol, glycerin and so on are used as the reaction solvent, which facilitates the heterogeneous reaction and the industrial production; (2) the D301 Resin, D201 resin and so on are used as the catalyst; thus the reaction can be easily controlled; the reaction yield is high; the catalyst can be recycled and reused; the cost is low; and the method facilitates the industrial ...

Radiation protection, antistatic and ultraviolet radiation resisting stainless steel metal wire core-spun yarn

The invention provides a radiation protection, antistatic and ultraviolet radiation protection stainless steel wire core-spun yarn, which is the core-spun yarn with core material; the invention is characterized in that the core material is the stainless steel wire. Except the core material, the core-spun yarn is also spun with the cotton, the viscose or the hair fiber. The technical proposal of the invention has the advantages that the radiation protection, antistatic and ultraviolet radiation protection capabilities of the stainless steel wire are good and the stainless steel wire is uneasy for fiber show because the stainless steel wire is arranged in the core-spun yarn and used as the core material, thereby the invention has beautiful appearance and is durable.

Monitoring system of mine well powder concentration based on wireless sensor network

The invention discloses a monitoring system of mine well powder concentration based on a wireless sensor network, which comprises a plurality of sensor detecting node groups, a router node group, a collecting node and an upper computer system, wherein each sensor detecting node group is provided with a plurality of base sensor nodes, and each base sensor node comprises a powder concentration sensor, a last stage micro-controller and a last stage ZigBee receiver; the router node in the router node group comprises a secondary-stage micro-controller and a third-stage ZigBee transceiver; the collecting node comprises a first-stage micro-controller, a secondary-stage ZigBee transceiver or a buss driving mould; and the upper computer system comprises a PC machine or portable mobile PDA equipment, a first-stage ZigBee receiver or a buss driving module. The monitoring system does not need to be supported by any fixed network, has the characteristics of fast spreading, strong damage resistance and ...

Polyaspartic acid copolymer water treatment agent and preparation method thereof

The invention discloses a preparation method of a polyaspartic acid copolymer water treatment agent. The method comprises the following operation steps: adding maleic anhydride and ammonium hydroxide to a reactor to heat and neutralize, and then carrying out high-temperature kneading thermal polycondensation reaction, so as to obtain solid gel poly succinimide; baking and crushing the obtained polysuccinimide into fine powder and floating in water, and adding tetrahydroglyoxaline to carry out grafting reaction; adding a certain amount of NaOH liquid to hydrolyze after reaction is ended; completely hydrolyzing when the pH value of the system is 10-12, so as to obtain a reddish brown copolymer liquid, namely the polyaspartic acid copolymer water treatment agent, wherein the molar ratio of the maleic anhydride to NH3.H2O is 1:(1.2-2), the neutralization temperature is 20-30 DEG C, the neutralization time is 0.5-2.5 hours, the pyrocondensation polymerization temperature is 160-220 DEG C, the ...

Airship type antenna dragging device for aircraft carrier

The invention relates to an airship type antenna dragging device for an aircraft carrier, which belongs to mechanical and electronic integrated devices for increasing a radar detection area and an early warning range on an aircraft carrier in the technical field of military application. The device mainly comprises a radar antenna (1), a circular or elliptic hard shell airship (2), a steel cable and data line (3), a windlass (4), power equipment (5), a conducting control device (6), a safe exhaust valve (7), an inflating pipe (8), an exhaust opening (9), a closing steel rib (10), and other equipment and parts.

Double compound elastic mixed materials for expansion joint of bridge

Anti-depression preparation for nasal mucosa administration as well as preparation method and application of anti-depression preparation

The invention provides an anti-depression preparation for nasal mucosa administration as well as a preparation method and application thereof, and relates to the field of medicines, the anti-depression preparation is prepared from the following raw materials: a hydroxytyrosin-Angiopep-2 compound, poloxamer, sodium hyaluronate and water; the hydroxytyrose-Angiopep-2 compound is prepared from hydroxytyrosol and Angiopep-2 according to the molar ratio of the hydroxytyrosol to the Angiopep-2 being 1 to (0.05 to 0.2); the weight-average molecular weight of the sodium hyaluronate is 60 to 120 kDa. According to the anti-depression preparation, the stability of the hydroxytyrosol can be improved, the hydroxytyrosol can be conveniently delivered to brain tissues at a stable rate and directly enters the brain to play an anti-depression drug effect, the administration frequency is reduced, and the anti-depression activity of the hydroxytyrosol can be better played. The anti-depression preparation ...

REINIGUNGS-/SCHWABBELEINHEIT FÜR HALBLEITERBEARBEITUNGSVORRICHTUNG

Combined type electrostatic dust remover

The utility model relates to a dust remover technical field, in particular to combined type electrostatic dust remover, include: discharge electrode, high voltage dc source, airstrainer and exhaust system. Discharge electrode is network structure, and discharge electrode is connected with the one end in high voltage dc source. Airstrainer is the network structure of fold, and airstrainer and discharge electrode set up relatively, and airstrainer is connected with the other end in high voltage dc source, forms the electric field between discharge electrode and the airstrainer. Exhaust system sets up the rear side at airstrainer. The utility model provides a combined type electrostatic dust remover has increased airstrainer's surface area under the prerequisite that does not change airstrainer occupation space length, improved combined type electrostatic dust remover's dust collecting efficiency, has avoided through increasing that the airstrainer size improves the dust collecting efficiency ...

Gravity compressed air buoyancy force and wind power generation device

The invention relates to a gravity compressed air buoyancy force and wind power generation device. The gravity compressed air buoyancy force and wind power generation device comprises a bridge floor platform, large bridge stand columns and a keg float. The keg float is arranged at the portion, between the large bridge stand columns, of the bottom of the bridge floor platform. A buoyancy force increasing and decreasing mechanism and a stroke switch are arranged inside the keg float. A hydraulic control mechanism, an air pressure storage adjusting mechanism, a power transmission mechanism and an electricity generator are arranged on the bridge floor platform. The keg float is connected with the power transmission mechanism through a chain and a transmission gear set. The power transmission mechanism provides power for the electricity generator through a gearbox for generating electricity. The gravity compressed air buoyancy force and wind power generation device has the advantages of being ...

Method for synthesizing 2-methyl-2-aryl-1,3-dioxolane compound

The invention relates to a synthesis method of xolane compound, in particular to a synthesis method which uses macro porous weak base phenylethene ion-exchange resin as solid alkali and uses Heck reaction, to synthesize 2-methyl-2-aryl-1, 3-dioxolane compound from aryl halide and 2-hydroxy ethyl vinyl ether compound. The inventive technical scheme comprises mixing and reacting 2-hydroxy ethyl vinyl ether and aryl halide in aprotic polar solvent, in the presence of palladium acetate and macro porous weak base phenylethene ion-exchange resin, for 1-30h at 50-150DEG C, and treating the reaction liquid to obtain 2-methyl-2-aryl-1, 3-dioxolane compound. Compared with prior art, the invention has the advantages of little environment pollution, low cost, which is suitable for for industrialization production.

Traditional chinese medicine filtrating machine

The utility model discloses a traditional chinese medicine filtrating machine, the on -line screen storage device comprises a base, the organism, filtrating dish pneumatic cylinder, the slag notch, filtrating dish hydraulic stem, left side pneumatic cylinder, left side stripper plate, the extrusion case, the output shaft, the feed plate, right side stripper plate, right side pneumatic cylinder and filtrating dish, wherein, fixed connection between organism and the base, the organism middle part is provided with filtrating dish pneumatic cylinder, be provided with filtrating dish hydraulic stem on the filtrating dish pneumatic cylinder, filtrating dish hydraulic stem top is fixed is provided with the filtrating dish, one side of organism is provided with left pneumatic cylinder, the opposite side of organism is provided with right pneumatic cylinder, left side stripper plate, right side stripper plate is located the extrusion incasement, extrusion bottom of the case portion intermediate ...

Method for microwave digestion-inductively coupled plasma mass spectrometer (ICP-MS) determination of metal ions such as lead, arsenic, cadmium and chromium in cigarette case

The invention discloses a method for microwave digestion-inductively coupled plasma mass spectrometer (ICP-MS) determination of metal ions such as lead, arsenic, cadmium and chromium in a cigarette case. The method comprises carrying out pre-treatment on a sample by microwave digestion, and carrying out determination of content of lead, arsenic, cadmium and chromium elements in a digestion liquid by an ICP-MS, wherein <208>Pb, <75>As, <52>Cr and <114>Cd are selected as mass numbers of the elements to be detected so that mass spectrum interference is reduced. Aiming at the ions which have a certain mass-to-charge ratio and are to be detected, MS signal response is directly proportional to the number of the ions in the MS, element concentrations of the sample can be determined by measurement of the number of the MS signals, and element content is calculated by a standard curve method. The method is fast and simple, can realize efficient and accurate detection of heavy metal content of printed ...

Primary sludge fermentation pretreatment method and system for improving performances of dephosphorization and denitrification on town sewage

The invention relates to primary sludge fermentation pretreatment method and system for improving the performances of dephosphorization and denitrification on town sewage. In an integrated flocculation fermentation settling pond, a suspended sludge floc layer is formed and maintained with a certain interface height through auxiliary stirring and natural flocculent settling so as to realize the flocculent settling of suspended solids and colloids and tendentious separation of suspended solid inorganic components, and biotic populations in the suspended sludge floc layer have stronger effects of hydrolysis and fermentation on the suspended solids, the colloids and soluble organic matters. In the invention, the resolution ratio on the suspended solids and the colloids is 15-50 percent, the volatile fatty acid concentration is improved by 20-150 percent, the VSS/SS (Volatile Suspended Solid/Suspended Solid) ratio of effluent is improved by 20-60 percent, and the proportion of a high-quality ...

Multi -functional cable change all -in -one

The utility model discloses a multi -functional cable change all -in -one, including the base that sets firmly weighing apparatus, install the body frame on the weighting platform of weighing apparatus, rotate on the body frame to install and change the cover, it is equipped with the articulated swing arm to change the even ring in cover lower part, the swing arm middle part is crooked to changeing the cover center, the endwise slip cartridge has the center pin in changeing the cover, the center pin lower extreme has set firmly most advanced decurrent circular cone piece, the equipartition has the track that corresponds with the swing arm on the circular conical surface of circular cone piece, the swing arm middle part sets firmly the extension piece that directed orbit extends, extend the piece tip and install the fitting piece that to follow pathway movement, install main power plant on the body frame, an elevating devic, still install cutting device on the base, include still that control ...

Silicon scale inhibiting dispersant composite

The invention discloses an inhibiting dispersant composite used for inhibiting silicon scale precipitates formed by silicon dioxide and a silicate compound in water. The composite comprises a hypophosphorous acid (sodium)-acrylic acid, hydroxyl-propyl acrylate telomere, boric acid, glycerinum and an acrylamide-polyoxyethylene monoethyl ether (methyl) acrylate copolymer. The composite can effectively inhibit scale precipitates formed by the gathering of silicon dioxide and silicate in water bodies such as boiler water, industrial recycling cooling water, reverse osmosis water, geothermal water, oilfield reinjection water and mine water, and can effectively inhibit the scale precipitates of a silicate inhibitor.

mobile robot visual orientation method based on improved SIFT algorithm

The invention provides a mobile robot visual orientation method based on improved SIFT algorithm. The method includes the following steps of: firstly collecting specific marker template images of the mobile robot in walking track and using the improved SIFT algorithm to calculate the SIFT characteristic point vector sets of the marker template images; then conducting matching operation on the SIFT characteristic point vector sets of the marker template images and the SIFT characteristic point vector sets of images to be identified; and finally realizing the identification of specific markers of images to be identified. By using the advantages of the SIFT algorithm, combining matching efficiency and real-time property and aiming at the specific situation of image identification of the mobile robot, the invention provides a mobile robot image identification method based on improved SIFT algorithm, and in the improved SIFT algorithm, the adopted vector dimensionality is 6-dimension, thus dramatically ...

Method for synthesizing glycerol triacetate by using acetylchloride

The invention relates to a method for synthesizing glycerol triacetate by using acetylchloride. The method comprises the steps: adding glycerinum and acetylchloride with a mol ratio of 1:(3-4) in a four-necked flash, starting stirring, slowly heating, and keeping a reaction under reflux, wherein a reaction temperature of glycerinum and acetylchloride is 50-90 DEG C; absorbing hydrogen chloride by using a falling film absorber, and insulating for reacting for 2-5 h; after the reaction is ended, distilling under reduced pressure to remove hydrogen chloride and excessive acetylchloride until no fraction outflows, wherein the reduced-pressure distillation temperature is 80-120 DEG C, and the reduced-pressure distillation pressure is -0.07 to -0.098 MPa. Compared with the prior art, the method is low in process reaction temperature; the chromaticity of glycerol triacetate is about 15; no catalyst, water-carrying agent and water-absorbing agent are added in a reaction process, thus the production ...

Organic pepper substrate cultivation method

The invention discloses an organic pepper substrate cultivation method and belongs to the field of vegetable cultivation. The method includes the following steps of cultivation substrate preparation, variety selection, seedling sowing, cultivation management, disease, pest and weed control and harvesting. According to the organic pepper substrate cultivation method, substrates are easy to prepare, the sources of raw materials are wide, the effect of fertilizers is good, the method is suitable for large-scale production of organic peppers, the cultivation modes of greenhouse cultivation and field cultivation can be chosen according to the actual situation, the production process is in full compliance with national organic product certification standards, products can be sold as organic vegetables in the market after a 3-year transition period, the occurrence of diseases and pests is low in the production process, the products are high in yield and good in quality, the food safety is guaranteed ...

Cable groove that used in loose area of earthquake region and soil property

The utility model discloses a cable groove that used in loose area of earthquake region and soil property, including the bottom plate, be equipped with two minor face holes in the minor face portion, be equipped with two long lateral openings in the long limit portion, the minor face hole sets up with long lateral opening symmetry, when the butt joint of two bottom plates, the minor face hole equals with long lateral opening interval, and the stand is equipped with in minor face hole and long lateral opening interpolation, and the minor face board is equipped with the stand hole with long sideboard bottom, be equipped with on the bottom plate with two constant head tanks of minor face parallel arrangement, two constant head tank symmetries set up, the baffle that upwards extends the setting is equipped with in the constant head tank interpolation, minor face board and long sideboard upper portion lock have the apron with bottom plate shape unanimity. It is rational in infrastructure, can ...

Small interfering RNA (siRNA) for restraining ACC gene expression of human adipocyte and expression vector and application thereof

The invention relates to a small interfering RNA (siRNA) for restraining ACC gene expression of a human adipocyte and an expression vector and application thereof, discloses five siRNAs for ACC gene expression with specific silence human adipocyte, provides a vector which can express an adipocyte-containing specific promoter for producing the siRNA and a method for constructing the vector and discloses the application of the siRNA in the preparation of a weight-reducing medicament and the application of the vector serving as the weight-reducing medicament. The vector can specifically express the siRNA in the human adipocyte so as to restrain the ACC gene expression of the human adipocyte and has certain apoptosis effect on an adipocyte so as to act certain weight-reducing effect. The weight-reducing medicament prepared from the siRNA has the characteristics of high efficiency, quick response, high specificity and the like.

On -line monitored control system of commercial product

The utility model discloses an on -line monitored control system of commercial product, including CPU control module, CPU control module is bond to user signal reception module, sensor signal reception module, control module and GPRS transmission receiving module respectively, user signal reception module bond to user sets for the panel, sensor signal receiving module connects overflow water -level switch respectively, goes up water -level switch, lower water -level switch and hot courage temperature sensor, control module connects water inlet solenoid valve respectively, goes out water and electricity magnet valve and heating pipe, GPRS transmits receiving module remote connection monitor platform. The utility model discloses can realization information on monitor platform look over, operations such as information monitoring, information feedback, carry out real time monitoring to the product of operation.

Improved cranial drilling machine for neurosurgery

The invention provides an improved cranial drilling machine for neurosurgery and belongs to the technical field of medical instrument and apparatuses. According to the improved cranial drilling machine, the technical problems that an existing cranial drilling machine for the neurosurgery is great in trauma, inconvenient to operate and the like are solved. The improved cranial drilling machine for the neurosurgery comprises a casing, a handle and an output shaft arranged on the casing in an inserting manner; a drill chuck is fixedly arranged at the front end of the output shaft; a drill bit is arranged on the drill chuck; a gear is arranged on the output shaft; a one-way clutch is arranged between the gear and the output shaft; a gear sector meshed with the gear is also arranged in the casing; a screw is fixedly arranged on the gear sector; a nut is arranged on the screw in a sleeving manner; a guiding structure which can drive the screw to rotate when the nut moves along the axial direction ...

Synthesis and application of silver ion boron-silicon compound

The invention relates to synthesis of a silver ion boron-silicon compound. The silver ion boron-silicon compound comprises the following main components: silica, boron oxide, sodium oxide, aluminum oxide, silicon carbide and silver nitrate. A specific preparation method of the silver ion boron-silicon compound comprises the following steps: (1) uniformly mixing quartz sand, borax, sodium carbonate, silicon carbide, aluminum oxide and silver nitrate, grinding the mixture by virtue of a grinding machine, and sieving the mixture by virtue of a sample separation sieve; (2) putting the sieved mixed powder into a muffle furnace to be subjected to high-temperature sintering; (3) putting the obtained silver ion boron-silicon compound into an annealing furnace, heating, maintaining the temperature, and slowly cooling. According to the application, the silver ion boron-silicon compound is prepared into small blocks, the small blocks are uniformly distributed into a circulating cooling water pretreatment ...

Sponge for arresting bleeding of trauma

The invention discloses a sponge preparation for arresting bleeding of a trauma. The sponge preparation is characterized by being prepared from the following main raw materials in parts by weight: 3 parts of radix cirsii jeponici, 4 parts of flos chrysanthemi indici, 2 parts of radix scutellariae, 3 parts of radix isatidis, 0.5 part of procaine and 10 parts of starch. A preparation method for the sponge preparation for arresting bleeding of the trauma, disclosed by the invention, is simple, and the selected raw materials are cheap and have a very remarkable bleeding arresting effect on the trauma, so that the sponge preparation can be used for excellently sterilizing and arresting bleeding.

Wire-electrode cutting robot for machining complex surface

The invention relates to a wire-electrode cutting robot for machining a complex surface. According to the wire-electrode cutting robot for machining the complex surface, an arm of a series robot comprises a base, a waist, a large arm body, a small arm body, a wrist and a finger tip wire electrode holder, wherein the waist is installed on the base through a first bearing, a first servo motor is installed on the waist, the large arm body is connected with the waist through a second bearing, the small arm body is connected with the tail end of the large arm through a third bearing, one end of the wrist is connected with the tail end of the small arm body through a fourth bearing, and the other end of the wrist is connected with the finger tip wire electrode holder through a fifth bearing. According to the wire-electrode cutting robot for machining the complex surface, the structure of a machine tool can be simplified, a dimension chain can be shortened, and the advantages, of the series robot ...

Method for synthesizing 2-substituted enamine or enamides

The invention relates to a resultant method of 2-substituted enamine or 2- substituted allyl amide compound, in particular to a preparation method using macropore alkalescent cinnamene system anion exchange resin as solid alkali and palladium acetate as catalyst to produce the 2-substituted enamines or 2- substituted allyl amide compound through Heck reaction of halogenated hydrocarbon and enamines or allyl amide. The invention adopts the technical proposal that: with the existence of palladium acetate and macropore alkalescent cinnamene system anion exchange resin as shown in formula (III), the halogenated hydrocarbon and the enamines or the allyl amide in non-protonic polarity solvent are stirred at 50 to 150 DEG C for chemical reaction for about 1 to 30 hours; after the reaction, the reaction liquid is separated and purified to get the 2-substituted enamines or 2- substituted allyl amide compound. Compared to prior art, the technical proposal has the advantages that the resin of the ...

Perforation model radius and depth measuring system and method

The invention discloses a perforation model radius and depth measuring system which comprises a three-dimensional moving device, a spectrum confocal sensor and a computer. The three-dimensional moving device comprises a transverse moving plate, a longitudinal moving plate and a vertical moving frame. The invention discloses a perforation model radius and depth measurement method. The method comprises the steps of obtaining three-dimensional point cloud data of a perforation model; invalid point removal, point cloud filtering and denoising and point cloud segmentation are carried out on the three-dimensional point cloud data; a space plane equation where measured data is located is calculated to be matched with a space circle of a space circle center, a linear model is solved through a least square method and substituted into the space circle equation, radius value data of a perforation model at the position are obtained, and then depth value data are calculated. The beneficial effects of ...

Compound cirsium japonicum sponge integrating pain-relieving and anti-inflammation effects, as well as preparation method thereof

The invention discloses a compound cirsium japonicum sponge integrating pain-relieving and anti-inflammation effects. The compound cirsium japonicum sponge is prepared from the following main raw materials: 3-7 parts of cirsium japonicum, 4-8 parts of folium isatidis, 2-6 parts of radix scutellariae, 3-7 parts of charred arborvitae leaf, 0.5-1.5 parts of procaine, and 10-20 parts of starch. A preparation method of the compound cirsium japonicum sponge is simple, the selected principle is low in manufacturing cost, and the compound cirsium japonicum sponge has good treatment effects on pain and inflammation caused by trauma, surgical operations and the like, and has good sterilizing and pain-relieving effects.

Continuous production process for HTPMP

The invention relates to a continuous production process for HTPMP. The process comprises the following steps: adding a certain mole ratio of diethylenetriamine, phosphorous acid, formaldehyde and hydrochloric acid into a mixing kettle, and uniformly mixing under 35 DEG C; pumping into a tubular reactor; after reaction, entering a thermal insulation kettle for thermal insulation and full reaction; after detecting that the phosphorus content is qualified, reducing pressure and externally evaporating formaldehyde; finally, dropwise adding hydrochloric acid for lowering the temperature and diluting to the needed active matter content. The production process adopts continuous feeding and continuous discharging, overcomes the defects of low rate of production, large energy consumption and the like of the current intermittent single-kettle mixing production process, and increases the rate of equipment utilization. The production cycle is shortened, the capacity is increased, the comprehensive ...

V-type pruning method for pepper cultivation

The invention discloses a V-type pruning method for pepper cultivation and belongs to the field of vegetable crop cultivation. The proper operations such as trunk selection and remaining, lateral branch pinching and removal are carried out on peppers in different growth periods of the peppers, plants keep vigorous at the early growth stage of the peppers, the fruit setting rate is increased, and the yield of the early stage is improved. The light transmission capacity of the middle and later stage of the peppers is improved, photosynthesis is enhanced, commodity is improved, and the good quality and high yield are ensured in the whole growth cycle of the peppers.

Medicine changing table for nursing

Medicine changing table for nursing belongs to medical instrument technical field. The utility model provides a: including the mesa, be equipped with folding support at the mesa upside, folding support downside is equipped with the pivot of support folding joint, and folding support links together through pivot of support folding joint and mesa, and support folding joint pivot front side is equipped with the fixed buckle of pivot, and folding support upside is equipped with flexible adjustable shelf, and the junction is equipped with flexible binding between flexible adjustable shelf and the folding support, and flexible adjustable shelf upside is equipped with the horizontally connect pivot. The utility model discloses simple structure, convenient to use, make full use of the space for change dressings the convenience, sanitation and hygiene, improved medical personnel's work efficiency.

Nursing degassing unit

Nursing degassing unit belongs to medical appliances technical field. The utility model provides a: including the disinfection disk body, characterized by is equipped with splint at disinfection disk body rear side, and the splint upside is equipped with two fixed orificess, is equipped with the locking bolt in the fixed orifices, and disinfection disk body left side is equipped with grooved surface, and grooved surface is last to be equipped with two magnet circles, and the grooved surface right side is equipped with alcohol liquid bucket groove and iodophor liquid bucket groove, and alcohol liquid bucket groove respectively is equipped with the joining chain with iodophor liquid bucket groove left side, is equipped with the L connecting axle that appears on the left of the joining chain. The utility model discloses it is multiple functional, at easy and simple to handle when giving patient skin degerming, the labour saving and time saving of nursing staff clinically and prevent the antiseptic ...

Tremella fuciformis sweet-scented osmanthus porridge

The invention discloses tremella fuciformis sweet-scented osmanthus porridge. The tremella fuciformis sweet-scented osmanthus porridge comprises the following raw materials: 130-150 parts of rice, 45-55 parts of millet, 20-30 parts of dried beancurd, 60-70 parts of fresh milk, 20-25 parts of tremella fuciformis, 20-25 parts of carrot, 15-20 parts of red dates, 20-25 parts of grapes, 15-20 parts of smoked plums,30-40 parts of red wine, 20-30 parts of honey, 8-10 parts of sweet-scented osmanthus powder, 3-5 parts of folium isatidis, 2-3 parts of grape seeds, 2-3 parts of sage, 2-3 parts of rosemary powder, 2-3 parts of herba lycopi, 2-3 parts of vervain, 3-4 parts of buckeye, 3-4 parts of felwort, 2-3 parts of rutin and the like. Materials, namely tremella fuciformis, sweet-scented osmanthus and the like are added into the tremella fuciformis sweet-scented osmanthus porridge, and thus the tremella fuciformis sweet-scented osmanthus porridge has favorable efficacies of beautifying and decreasing ...

Efficient scale and corrosion inhibitor and preparation method thereof

A preparation method of an efficient scale and corrosion inhibitor comprises the following steps: carrying out a heating reaction on phosphonic acid and polyvinylpolyamine, and rising the temperature for a vacuum dehydration reaction to synthesize imidazoline; and adding the above obtained product to a formaldehyde solution, adding phosphorous acid in a dropwise manner, carrying out a Mannich reaction under acidic conditions to synthesize a scale and corrosion inhibitor, and carrying out reduced pressure evaporation to remove hydrogen chloride in order to obtain a pure scale and corrosion inhibitor solution. A molar ratio of phosphonic acid to polyvinylpolyamine is 1:1-1.3, the early-stage heating reaction is carried out at 100-130DEG C for 1-3h, and the later-stage reaction carried out after the temperature rising is carried out at 120-170DEG C under -0.06-0.095Mpa for 3-5h. A molar ratio of imidazoline to formaldehyde to phosphorous acid is 1:2.0-2.5:2.0, and hydrochloric acid is used ...

Plug with lock catch mechanism and connector assembly

A plug with a lock catch mechanism comprises a plug shell provided with a locking cavity, a plug terminal arranged in the plug shell and the lock catch mechanism installed in the plug shell, and the periphery of the plug shell is provided with an installation groove which is used for installing the lock catch mechanism and is communicated with the locking cavity. The lock catch mechanism comprises a lock pin capable of being transversely pressed in the mounting groove and a tension spring, and the lock pin comprises a lock pin body, a lock catch part formed on the left side of the lock pin body and protruding into the locking cavity, an operation end extending out of the mounting groove from the right side of the lock pin body and a tension spring fixing column formed on the left side of the lock pin body. The right side of the installation groove protrudes to form a tension spring fixing end, and the two ends of the tension spring are connected to the tension spring fixing column and the ...

Water-soluble chitosan quaternary ammonium salt bactericide and preparation method thereof

The invention discloses a water-soluble chitosan quaternary ammonium salt bactericide and a preparation method thereof. The water-soluble chitosan quaternary ammonium salt bactericide has a structural formula as described in the specification. The preparation method comprises the following steps: subjecting deacetylated chitosan and polyethylene glycol diglycidyl ether to a ring-opening alkylation reaction; and then subjecting a reaction product and haloalkane to quaternarization so as to obtain a chitosan derivative with a quaternary ammonium structure. The preparation method provided by the invention is simple and easily practicable and has high yield. The prepared bactericide has good water-solubility and improved bactericidal performance and stability.

Three proofings intelligence DMRDPMR digit anti glare cell -phone of talkbacking

The utility model relates to a wireless communication technical field especially relates to the digital DMRDPMR of the three proofings intelligence anti glare cell -phone of talkbacking. The utility model provides an anti digital DMRDPMR of three proofings intelligence who the dazzles anti glare cell -phone of talkbacking, including three proofings cell -phone shell and the intelligent mobile module who installs in three proofings cell -phone shell inside, the anti light liquid crystal display that dazzles, the anti light liquid crystal display that dazzles is connected with three proofings cell -phone shell facies, still be provided with intercommunication module on the intelligence mobile module. The utility model discloses a three proofings intelligence DMRDPMR digit anti glare cell -phone of talkbacking both can change the simulation and talkback that the noise is many, the near defect of distance, and change traditional liquid crystal display moreover and shows dimness, black screen ...

Method for producing acetyl tributyl citrate by using acetyl chloride

The invention discloses a method for producing acetyl tributyl citrate by using acetyl chloride. The method comprises the following steps: directly preheating tributyl citrate; dropwise adding acetyl chloride to react; introducing the generated hydrogen chloride into an absorption device to produce hydrochloric acid; and distilling remained acetyl chloride and hydrogen chloride to obtain an acetyl tributyl citrate product. The method is low in reaction temperature, does not use catalyst and is simple and practical, an acetylation reagent is small in dosage, and the difficulty of post-treatment can be reduced.

Sponge for traumatic hemostasis and preparation method thereof

The invention discloses a sponge preparation for traumatic hemostasis. The sponge preparation is characterized by being prepared from the following main raw materials in parts by weight: 6 parts of herba seu radix cirsii japonici, 7 parts of flos chrysanthemi indici, 5 parts of radix scutellariae, 6 parts of radix isatidis, 1.3 parts of procaine and 18 parts of starch. The sponge preparation for traumatic hemostasis is simple in preparation method, low in cost of selected raw materials and significant in traumatic hemostasis effect, and can be used for better sterilization and hemostasis.

Electric power distribution cable spooler

The utility model discloses an electric power distribution cable spooler, including the base that sets firmly weighing apparatus, install the body frame on the weighting platform of weighing apparatus, rotate on the body frame to install and change the cover, it is equipped with the articulated swing arm to change the even ring in cover lower part, the swing arm middle part is crooked to changeing the cover center, the endwise slip cartridge has the center pin in changeing the cover, the center pin lower extreme has set firmly most advanced decurrent circular cone piece, the equipartition has the track that corresponds with the swing arm on the circular conical surface of circular cone piece, the swing arm middle part sets firmly the extension piece that directed orbit extends, extend the piece tip and install the fitting piece that to follow pathway movement, install main power plant on the body frame, an elevating devic, still install cutting device on the base, include still that control ...

A cleaning/buffing apparatus for use in a wafer processing device

A semiconductor processing system, such as a system for buffing or scrubbing both sides of a wafer at the same time, that includes a processing box for use with chemical solutions, a positioning device to position a semiconductor substrate, or other similar semiconductor material or device, and a placement device to place a buffing pad or scrubbing brush.

Fluff collection and handling

Battery assembly vent valve having a breathable membrane

A vent valve includes a breathable membrane. The vent valve can be in a battery assembly of a vehicle. The vent valve comprises a base defining a central channel and a valve core movably connected with the base and including at least one first gas channel. The valve core is configured to move from a first position to a second position relative to the base under a gas pressure. When the valve core is in the second position, the first gas channel is at least partially opened to allow some airflow to bypass the breathable membrane.

Reinigungs-/schwabbeleinheit für halbleiterbearbeitungsvorrichtung

Use of salt-sensitive hydrogel as intelligent water-control and water-replenishing material

Disclosed is the use of a salt-sensitive hydrogel as an intelligent water-control and water-replenishing material. The salt-sensitive hydrogel, which has the property of releasing water in the presence of salt, is applied to the surface of the skin, so as to adapt to the content of salt on the skin surface and replenish a suitable amount of water. The salt-sensitive hydrogel, which has the property of releasing water in the presence of salt and which comprises polyglutamic acid, hyaluronic acid or xanthan gum, has the property of releasing water as the expansion ratio of the gel or the water absorption is significantly reduced under the action of an applied salt.

Vehicle battery humidity control device

The present disclosure provides a vehicle battery humidity control device, a corresponding vehicle battery pack and a humidity control device. The disclosed vehicle battery humidity control device comprises: a shell installed on a vehicle battery pack and formed with a receiving cavity, the receiving cavity and an internal space of the battery pack being communicated fluidly through a ventilation opening on the shell; and a humidity control core arranged in the receiving cavity and including a humidity control structure and a waterproof and breathable film located between the humidity control structure and the ventilation opening. The humidity control device proposed by the present disclosure has a more simplified overall structure, lower manufacturing and installation costs, long service life, and more convenient maintenance, achieving humidity control inside the vehicle battery pack, thereby improving user satisfaction.