198results about How to "Increase formation rate" patented technology

A pressure fluid actuated downhole percussion tool includes a reciprocating piston hammer with differential transverse pressure surfaces cooperable with a cylinder housing, a guide sleeve and a bit carried exhaust tube to form opposed pressure fluid chambers to which pressure fluid may be conducted to deliver repeated impact blows to a bit having circumferentially spaced bosses and replaceable cutting inserts. The bit is drivenly connected to the tool by plural drive pins supported in circumferentially spaced grooves in the bit shank and in a removable sub supported by the tool housing. Improved earth penetration performance is realized utilizing a claw bit with a pressure fluid actuated percussion tool providing rotation as well as selective deliverance of impact blows through the bit.

The invention provides a composite bacillus preparation containing three strains, a preparation method of the composite bacillus preparation and application of the composite bacillus preparation to ecological breeding, and belongs to the technical field of microorganism and feed additives. Bacillus coagulans, butyric acid clostridia and bacillus megaterium are used as fermentative strains respectively, and large-scale, low-cost and high-density fermentation production of spores is conducted through step-by-step magnification; three live bacterium preparations are prepared by mixing bacterial sludge with the spores and dry starch; the three live bacterium preparations are matched according to the equal weight ratio, the composite bacillus preparation is obtained, and the concentration of the spores reaches more than 1*108-109 cfu/g; the composite bacillus preparation serves as a microorganism and feed additive to be added to farmed animal feed according to the mass ratio ranging from 0.02% to 0.5%. The composite bacillus preparation is simple and stable in process, low in cost, high in spore content and environment tolerance, easy to store and high in survival rate; the purposes of composition and synergism are achieved through the collaborative supplementary effects of different bacilli in the aspect of micro-ecology adjustment, growth of farmed animals is promoted, the feed utilization rate and feed rewards are increased, diarrhea is prevented and reduced, and the breeding ecological environment is improved.

The present invention provides a reactor and gasification process for the continuous controlled production of hydrogen (H₂) and a by-product synthesis gas (mixture of CO+H₂+CO₂), such a process called a hydrogen priority poly-generation process (HPPP). The reactor uses a circulating molten iron process, which is capable of gasifying a variety of carbonaceous materials including low rank coals and biomass. The process employs an iron steam oxidation-reduction cycle in a multi-chamber reactor including a multi-vessel reactor system, where in one compartment or vessel hydrogen is produced by steam oxidation of molten iron; and in a second compartment or vessel the iron is regenerated by carbon reduction of molten iron oxide thereby producing a by-product synthesis gas (CO+H₂+CO₂), and excess heat which can be used to produce steam, and in a third step the iron is purified before being returned to the steam oxidation step in the process. An embodiment of this process uses low rank coals having high ash levels in a reactor, which is designed to continuously extract ash from the molten iron bath. A second embodiment uses low ash carbon materials such as highly beneficiated coals in a simpler process that produces pure streams of hydrogen and CO.

A structure including a substrate, an intermediate layer provided and formed directly onto the substrate, a transition region, and a group II-VI bulk crystal material provided and formed as an extension of the transition region. The transition region acts to change the structure from the underlying substrate to that of the bulk crystal. In a method of manufacture, a similar technique can be used for growing the transition region and the bulk crystal layer.

The invention discloses a light-emitting diode epitaxial slice and a preparation method thereof, and belongs to the field of light-emitting diodes. The epitaxial slice comprises a substrate, a buffer layer, an N-type layer, a stress release layer, a multiple quantum well layer and a P-type layer, wherein the buffer layer, the N-type layer, the stress release layer, the multiple quantum well layer and the P-type layer sequentially grow on the substrate, the multiple quantum well layer is of a super-lattice structure, each cycle of the multiple quantum well layer includes an InyGa1-yN layer and a GaN layer, 0<y<1, the stress release layer is of a cycle structure, each cycle of the stress release layer includes a GaN layer, an InN layer and an InxGa1-xN layer growing on the InN layer, and 0<x<y. The InGaN layer grows on the InN layer in each cycle of the stress release layer, the formation probability of an In-N bond in the InGaN layer is high in rich In atmosphere, and In atoms can be more easily doped into a lattice to form the InGaN layer with high In component content.

A method for extracting tungsten from scheelite by: 1) adding a mixed acid including H₂SO₄ and H₃PO₄ to a decomposition reactor; 2) heating the mixed acid to a temperature of 70-100° C.; adding scheelite while controlling the liquid-solid ratio at about 3:1-8:1 L/kg; allowing the components in the decomposition reactor to react for 1-6 h, and filtering to obtain a filtrate; 3) supplementing the filtrate with sulfuric acid consumed in the reaction; 4) crystallizing the filtrate to obtain phosphotungstic acid crystals and mother liquor; 5) dissolving the phosphotungstic acid crystals in water to obtain phosphotungstic acid solution; 6) transforming the phosphotungstic acid solution into an ammonium tungstate solution for the purpose of preparing ammonium paratungstate; and 7) supplementing the mother liquor with phosphoric acid and water to an initial level and reusing the mother liquor for ore leaching.

A sputtering apparatus 1 sputters a target 8 with ions in a plasma using a magnetron sputtering method, to form an ITO film from the target 8 on glass substrates 5 mounted on a rotating carousel 4. Manifolds 9 and 10, which have a shape that is symmetrical about each of two mutually orthogonal central axes in the plane of the target 8, are disposed so as to surround the whole periphery of the target 8, and process gas discharge ports 9a and 10a for discharging a process gas onto the target 8 are provided in a manner being distributed over the whole of the manifolds 9 and 10.

The invention discloses a hard wire steel wire rod. The hard wire steel wire rod is prepared from the following components in percentage by mass: 0.78-0.82% of C, 0.18-0.25% of Si, 0.60-0.65% of Mn, not greater than 0.018% of P, not greater than 0.010% of S, not greater than 0.015% of [Al], not greater than 0.015% of As, not greater than 0.10% of Cr, not greater than 0.10% of Ni, not greater than 0.10% of Cu, not greater than 0.10% of other inevitable impurity elements and the balance of Fe. The average sorbitic level of the hard wire steel wire rod is not smaller than 90%, the section shrinkage rate of the hard wire steel wire rod is not smaller than 31% and the tensile strength of the hard wire steel wire rod is not smaller than 1100Mpa. According to the hard wire steel wire rod disclosed by the invention, the types, the content and the preparation process of each element are regulated, so that the sorbitizing degree of the steel wire rod is high; meanwhile, the hard wire steel wire rod has excellent shaping and strength, and is an ideal raw material for preparing subsequent products.

Cyclic esters of hydroxy organic acids can be produced and recovered via azeotropic distillation. In certain embodiments cyclic esters, such as glycolide and lactide, can be produced from a fermentation broth or other feed stream that contains a hydroxy organic acid, an ammonium salt of a hydroxy organic acid, an amide of a hydroxy organic acid, or an ester of a hydroxy organic acid using azeotropic distillation. The hydroxy organic acid of the feed stream or the hydroxy organic acid derived from the feed stream by decomposition is reacted to produce the cyclic ester. In other embodiments a crude composition of a cyclic ester of an organic ester can be purified using azeotropic distillation.

Embodiments of the invention provide a method of determining a storage lifetime of a wafer in a storage environment, the storage environment corresponding to an environment having a first value of temperature and a first value of relative humidity, the wafer having a pre-test value of a first contamination parameter, including the steps of: subjecting the wafer to a test environment for a test period, the test environment includes an environment having a second value of temperature and a second value of relative humidity; subsequently, inspecting the wafer thereby to determine a post-test value of a second contamination parameter, wherein the second value of relative humidity is greater than 30% and the second value of wafer temperature is greater than 30° C.

A sea-buckthorn and milk vetch root beverage for preventing SARS, characterized in that the beverage mainly comprises sea-buckthorn fruit juice, raw astragalus root and flavoring agent, wherein the percentage by weight of each constituent are, seabuckthorn fruit juice 0.5-5%, raw astragalus root 0.8-3%, flavoring agent 1-30%, the rest for drinking water. The functional beverage possesses the effect of enhancing human body resistance to diseases, and has good taste.

The invention discloses a method for cultivating a pearl by inducing triploid hyriopsis cumingii. The method comprises the following steps of: cultivating the triploid hyriopsis cumingii by induction, namely selecting diploid hyriopsis cumingii with age of 3 to 6, shell length of over 15cm and shell thickness of over 5cm in normal growth as parent clams; isolating the male clams from the female clams of the selected parent clams for cultivation respectively; tracking and observing the development condition of the eggs of the female clams; transferring the female clams into a pond for cultivating the male clams to perform natural insemination on the female clams after the eggs are maturely developed; observing the development condition of the fertilized eggs; putting the female clams into 300 to 450 mu mol/L aqueous solution of 6-dimethyl aminopurine after over 80 percent of the fertilized eggs have first polar bodies; and performing induction processing for 10 to 30 minutes to obtain induced female clams; cultivating the female clams, and hatching and raising the seedlings to obtain the triploid juvenile clams; and performing cultivation to obtain the triploid hyriopsis cumingii. In the method, the normal diploid hyriopsis cumingii is used as the parents, and the natural insemination is adopted, so that the induction success rate is improved to over 70 percent.

The invention discloses a making method of hypersonic contrast medium, which comprises the following steps: dispensing the raw material with 5-50mg/ml protein, 10-100mg/ml sugar, 7-9mg/ml sodium chloride, 0. 20-0. 8ml/ml fluorocarbon gas; preheating the material; rotating at low speed to preblend; rotating at high speed to generate microball; optimizing the grain size of the microball; detecting the semi-product; packing the product. The invention has good uniformity of grain size, which improves the quality effectively for industrialized manufacturing.