368results about How to "Easy to flow out" patented technology

Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.

A cast or support assembly includes inner double knit padding material in which the outer layer is woven or knit to have substantial size openings, while the inner layer of the double knit material to be located against the skin of the patient is more closely woven or knit. Additional casting fabric is also provided, with this casting fabric being impregnated with water hardenable material. The outer casting fabric may include openings extending through it, so that the entire cast assembly has ventilation openings allowing air circulation to accomplish rapid drying following wetting of the assembly by sweat, rain, or by swimming, for example.

In a method of packaging a semiconductor IC, a tape is attached to a back surface of a lead frame array, and the lead frame array is held between an upper mold chase and a lower mold chase of a mold, with the back surface of the lead frame array upward. The upper and lower mold chases form an upper cavity and a lower cavity with respect to the lead frame array respectively. A mold compound is injected into the upper and lower cavities respectively. With respect to clearances between leads, between die pads and/or between the leads and the die pads, the mold compound injected into the upper cavity covers the portion of the tape over the clearances before the mold compound injected into the lower cavity fills the clearances, so that the tape is depressed. After curing the mold compound, removing the mold and de-taping, the mold compound filled in the clearances is recessed inward from the back surface, which increases the solderability in the subsequent surface mount process and decreases the possibility of the occurrence of lead short-circuits.

The invention discloses a fungal alpha-amylase-containing beer complex enzyme and a preparation method thereof, belonging to the field of enzyme preparation processing. The high-activity fungal alpha-amylase and other food grade enzyme preparations, plant extracts, antioxidants, protective agents, activating agents and the like can be scientifically compounded by taking concentrated maltase and concentrated malt juice powder as main raw materials; the prepared beer complex enzyme is complete in proteases, high in enzyme activity, difficult to deactivate, mellow in malt aroma, and capable of providing abundant nitrogen source for malt juice, wherein the activity of fungal alpha-amylase in fermenting liquor during the preparation of fungal alpha-amylase is 17000-21000 U/mL. The complex enzyme can be stored for 12 months under the conditions of 0DEG C and 40DEG C, the single enzyme activity loss in the complex enzyme are respectively 0.50% and 0.72%, the enzyme deactivation caused by environment change, and inappropriate operation methods during packaging, storage, transportation, use and the like can be effectively prevented, especially the enzyme deactivation caused by high temperature can be prevented.

This invention relates to a static filature device pushed by a gas layer and its industrial application, in which, the device includes: a gas circulation push device, a gas drying and heating device, a sealed filaturing room, and air inlet at the top of the sealed room, a material room at the upper part of the sealed room, a spinneret at the lower part of the material room, electrode connected on the spinneret, a material receiving device at the lower part of the sealed room, an air outlet at the lower-right part of the room, a cooling device cooling gas flow with solvent and a solvent recovering device, which can make static filature to molding to polymers, increases spinning efficiency greatly by applying multiple sprayers, controls the temperature and humid of the entry flows to alter the temperature and humid of filature raw liquid, and further more, the pushed gas flow can drive the volatiled solvent in the process to flow out to be recovered.

This invention provides a healthcare cum optimal illumination device. The inventive device includes at least one frame, at least one light source, and at least one layer of treated filter cover. The light source is disposed in the frame. The light source emits infrared radiation, visible light radiation, and ultraviolet radiation. The visible radiation is used for illumination, and the invisible infrared and ultraviolet radiation is harnessed to improve indoor air quality. The layer of the filter cover is treated with substances of air cleaning properties and encloses the frame. The treated filter cover has at least one opening where air in the frame heated by the infrared radiation flows out from the device and cooler ambient air surrounding the device is drawn through the filter cover into the frame replacing the heated air that has flown out of the device to form air circulation and to perform air purification.

A fermentation process uses substantially pure oxygen. The oxygen is the only reactive gas which is injected into a fermentation vessel. The oxygen is moved through the vessel solely by its own pressure. The process can be used with both mechanically-agitated and air-lifted fermenters. The mechanically-agitated fermenter includes an analyzer for measuring oxygen concentration in the exhaust line, and adjusting the flow of fresh oxygen into the vessel accordingly. In the air-lifted fermenter, an analyzer measures the oxygen concentration in the head space of the vessel, and operates valves which either recycle the gas from the head space, or vent that gas to the outside, according to the measured concentration. A stream of nitrogen is periodically injected into the vessel to drive out carbon dioxide and other gases, to control the pH of the fermentation medium. The present invention substantially improves the efficiency of a commercial fermentation process.

The invention belongs to forming range of three-dimensional structure, and particularly relates to a direct-writing forming method of printing and converting a precursor into ceramic. The method includes: using a ceramic precursor as a solute, dissolving the ceramic precursor in liquid-state organic matter, stirring raw materials to obtain ink with certain viscoelasticity, and putting the ink intoa needle cylinder; through an air pressure controller and according to a set program, printing out a three-dimensional structure on a substrate layer by layer, and carrying out precursor conversion to obtain ceramic with a complex three-dimensional structure. The direct-writing forming method overcomes the defect that existing direct-writing forming ceramic suspensions are prone to nozzle blockage, low in continuity and unstable in slurry in the process of forming. The designed slurry is simple and reasonable in composition, high in rheological controllability and convenient for large-scale industrial application. A three-dimensional periodic structure prepared by the method is wide in scale range, and decimeter-scale, centimeter-scale, millimeter-scale, micrometer-scale or nanometer-scale control can be realized simply through adjusting aperture of a needle head.

The invention relates to a paste for preventing and curing stem borers, which is prepared by mixing the following raw materials based on the weigh ratio: 0.1-4 parts of botanical pesticide, 4-6 parts of kaolin, 0.5-1.5 parts of glycerol, 0.3-1 part of thickening agent and 10-13 parts of water. The paste has the advantages of certain stickiness, moderate mobility and long moisturizing period and pesticide effect period and has small possibility of drying and volatilizing. The paste is neutral and nontoxic, is safe to plants and does not pollute environment. The prevention and cure effect of the paste on Anoplophora glabripennis is improved by 64.4-69.8%, the prevention and cure effect on the Apriona swainsoni is improved by 50.6%, and the prevention and cure effect on small carpenter moths is improved by 13.8%. Meanwhile, the use amount and the loss amount of pesticides are lowered, thereby lightening environmental pollution.

The invention discloses a beer compound enzyme containing acid protease and a preparation method of the beer compound enzyme containing the acid protease and belongs to the field of enzyme preparation processing. The beer compound enzyme complete in protease system, high in enzyme activity, less prone to inactivation, strong in malt fragrance and capable of providing a rich nitrogen source for wort is mainly prepared from a concentrated malt enzyme and concentrated wort powder by scientifically compounding food-grade enzyme preparations such as the high-activity acid protease, plant extracts, antioxidants, protective agents, activating agents and the like, wherein the enzyme activity of the acid protease in fermentation liquor in an fermentation liquor preparation process is 18000-20000U/mL. When the beer compound enzyme is stored at the temperatures of 0 DEG C and 40 DEG C for 12 months, enzyme inactivation rates of single enzyme in the beer compound enzyme are 0.53% and 0.8% respectively, so that enzyme inactivation caused by environment changes and improper operation methods during packaging, storage, transportation, use and the like can be prevented effectively, and especially, enzyme inactivation caused by high temperature can be prevented.

The invention discloses a beer compound enzyme containing neutral protease, and belongs to the field of processing of an enzyme preparation. The beer compound enzyme takes natural concentrated malt enzyme as a main raw material, and the mixed enzyme is scientifically compounded, so that not only is an enough enzyme source replenished, but also the beer compound enzyme is more enough in enzyme activity, more excellent in preservation property, more abundant in nitrogen source, and more sufficient in malt fragrance under the synergistic effects of a protective agent and an activating agent; the enzyme activity loss rate after storage for two years at normal temperature is smaller than 3%; the neutral protease in the mixed enzyme is prepared by liquid deep mixed fermentation under a specific fermentation condition by taking bacillus subtilis 1398-2-12 producing the neutral protease with strong thermal stability as an original strain, the enzyme activity of the neutral protease is 5500-7000U/mL, the optimum reaction temperature is 70 DEG C, the optimum reaction pH value is 7.2, and the neutral protease is more suitable for beer brewing. The beer compound enzyme is scientific to compound, the product is complete in function, long in expiration date, and convenient to transport, store and use, and a basis is established for production of excellent beer.

A cylinder head 2 for a multiple-cylinder internal combustion engine is provided with a centralized exhaust passageway E. The centralized exhaust passageway E includes individual exhaust passageways 51 to 54 connected to combustion chambers defined by recesses 11 to 14, and a central passageway 60 collecting the exhaust gas flowing through the individual exhaust passageways 51 to 54. Each of the exhaust passageways 51 to 54 has two branch passageways 21,31; 22,32; 23,33; 24,34 extending from the exhaust ports Ea opened and closed by exhaust valves 6, and a merging passageway 41; 42; 43; 44 having one end connected to the two branch passageways. The respective passage diameters D1 to D4 of the merging passageways 41 to 44 are substantially equal to the passage diameters d1 to d4 of the branch passageways. The merging passageways 41 to 44 and the central collecting passageway 60 are surrounded with water jackets W1 and W2 from above and below. Thus exhaust gas cooling efficiency can be improved without enlarging the cylinder head provided with the centralized exhaust passage.

A battery pack includes a case having an inner space, a plurality of battery cells placed inside the case, and at least one spacer placed between the battery cells. A space is formed around a supporting portion of the spacer for the battery cells so as to allow heat generated by the battery cells to flow out of the case. The spacer supports the battery cells by line contact therewith. The spacer body is formed in the shape of an H beam or in the shape of a staircase.

Provided is a method for manufacturing a quartz glass crucible by employing a rotating molding method. The method is characterized in performing arc-melting by arranging an electrode at a position deviated from a molding center line. The eccentric arc controls glass temperature differences among the temperatures of glass being melted at a straight trunk portion, a curved portion and a bottom portion to be 300 DEG C or below. The eccentric arc also controls the thicknesses of a transparent layer at the straight trunk portion and at the bottom portion to be within 70-120% of the thickness of the transparent layer at the curved portion.

The invention discloses a granular molding preparation method for Chinese medicinal herbs. The method comprises the following steps: A, adoption of a herbal material: a step of selecting and slicing the herbal material and drying the herbal material so as to obtain a clean herbal material; B, crushing: a step of selecting the clean herbal material and preliminarily crushing the clean herbal material by using a universal pulverizer with a crushing degree range of 10 to 120 meshes so as to obtain coarse powder with a size of 80 to 95 meshes; C, ultramicro wall-breaking crushing; D, dry granulation: a step of placing obtained Chinese herbal powder into a dry granulator, adding adjuvant, preparing a blank tablet with a diameter of 20 to 25 mm in virtue of binding force among particles under the action of compression force and crushing the tablet into particles with a size of 50 to 100 meshes; E, sterilization; and F, split charging and packaging. With the method, active substances in the herbal material can be fully released and retained, the wall breaking rate of the herbal material is high, and waste is avoided.

An endovascular bare stent belongs to the technical field of biomedical engineering. The stent is a tubelike mesh-screen stent 1 which is arranged in the blood vessels along the vessel wall. The invention is characterized in that the cross-section of the mesh-screen of the mesh stent 1 takes the shape of a trapezium. The long edge of the trapezium is the outer side 3 of the mesh-screen stent. The short edge of the trapezium is the inner side 2 of the mesh-screen stent. The ratio of short side of the trapezium to long side of the trapezium is less than 50 percent. The penetrating ratio of the mesh-screen of the mesh-screen stent 1 is 40 percent to 80 percent. After the stent covers the aneurysm, the resistance of the blood flowing into the tumor cavity is large, and the resistance of the blood flowing out of the tumor cavity is small; therefore, the blood flowing in the tumor cavity is inhibited so as to reach the purpose of treatment. The stent has little effect on perforating branches vessel, can easily be sent to tortuous intracranial artery, thereby causing the nerves involved in the treatment of cerebral aneurysms more extensive, saving more patients, and being good Gospel for doctors and patients.

The present invention belongs to the field of aquatic product processing and mainly relates to an ultrasonic wave assisted rapid acid removal method of Peruvian squids. Firstly, frozen Peruvian squids are semi-thawed, the thawed squids are peeled, internal organs are removed, the treated squids are washed, the washed squids are cut into slices, an acid removal liquid is added (the acid removal liquid consists of sodium pyrophosphate at a mass percentage concentration of 0.2-0.8%, sodium carbonate at 0.1-0.5%, sodium citrate at 0.2-0.8%, sodium tripolyphosphate at 0.2-1% and edible salt at 0.5-2%), the squids are firstly pretreated with ultrasonic wave, then the pretreated squids are soaked and rinsed, and after the soaking, the squids are rinsed with running water. The method is simple in technology and convenient in treatment, can also effectively improve the sour taste and bitter taste of the Peruvian squids, and improves the product quality of the squid products.