99results about How to "Improve material utilization" patented technology

Novel micro electro mechanical systems (MEMS)-based sensors for use in ultra-high temperature environments are disclosed. The MEMS-based sensors are derived from a class of polymer-derived ceramics selected from the group consisting of SiCN, SiBCN and SiAlCN. The materials of construction are such that, the sensors are capable of accurate, real-time, on-line and in-situ monitoring, suppression of combustion oscillations and detailed measurements in operating structures that have temperatures of from about 1500° K to about 2000° K, extreme pressures/turbulence and harsh chemical off gases. When the novel sensors are mounted on a hot gas path wall, such as, at a combustor exit, there can be a continuous monitoring of pressure pulses/oscillations, wall shear stress, temperature and surface heat flux.

A low-cost miniature single-phase permanent magnet brushless direct current motor includes: a permanent magnet rotor which is a cylindrical shape for magnetizing two radial poles; a stator which includes a "U"-shaped stator iron core and a direct current stator winding penetrated by the stator iron core; and a position sensor which is used for detecting a magnetic pole position of the permanent magnet rotor so as to control a power supply of the stator winding. The stator iron core includes a pure "U"-shaped polar body, a magnetic yoke part, a left pole shoe, and a right pole shoe, wherein the left pole shoe and the right pole shoe are form at an upper part of two arms of the "U" shape; a pole face of the left pole shoe is close to a left side of a cylindrical surface of the permanent magnet rotor; a pole face of the right pole shoe is close to a right side of the cylindrical surface of the permanent magnet rotor; and the stator iron core is characterized in that a plane of two pole horns of at least one pole shoe intersects a symmetry axis of the "U" shape. The motor of the invention can start even if the non uniform air gap is not used, and the problems of the reluctance and the torque fluctuation caused by the non uniform air gap can be eliminated.

A method for preparing a high-performance tantalum target, a high-performance target prepared by the method, and a use of the high-performance target. The method for preparing the high-performance tantalum target comprises: firstly, preparing a tantalum ingot into a forging blank by a method of cold forging in conjunction with hot forging; then, rolling the forging blank by a hot rolling method; and finally, performing leveling, and performing discharging, milling and surface treatment according to a size of a finished product, so as to obtain the tantalum target. The tantalum target prepared by the method has uniform crystallization, with a grain size between 50 μm and 120 μm. A texture component where a texture (110) dominants in the thickness direction of the target is obtained. A total proportion of three textures (111), (110) and (100) is between 40% and 50%, ensuring a consistent sputtering rate of the tantalum target during use.

The invention provides a method for extracting lithium and iron phosphate from lithium iron phosphate waste, comprising the following steps: (1) immersing lithium iron phosphate powder with NaOH to obtain an aluminum removal material; (2) performing an aerobic calcination reaction on the aluminum removal material to obtain a calcined material; (3) cooling the calcined material, and adding acid tocarry out a leaching reaction to obtain pickle liquor and iron phosphate; (4) performing solid-liquid separation on the pickle liquor to obtain an iron phosphate solid and an acidic lithium liquid; (5) washing the iron phosphate and drying to obtain battery-grade iron phosphate; and (6) regulating pH value of the acidic lithium liquid to alkaline level and filtering to obtain a purified lithium liquid. The method of the invention has simple process and no requirement for raw materials; the consumption of acid and alkali in the extraction process is low, and the by-products are few; the qualityof the obtained product iron phosphate is stable, and index requirements of the battery-grade product are met; and the elements such as lithium, iron and phosphorus are effectively recovered and theyield is high, and the method is easy to achieve industrial production.

A method is disclosed for making contact with a semiconductor substrate, in particular for making contact with solar cells, in which a metallic seed structure is generated on the surface through a dielectric or passivating layer by means of an LIFT process, and the seed structure is then reinforced.

This invention relates to novel designs of high power batteries, electrochemical cells, energy storage materials and electrode materials, and processes for manufacturing same. A battery comprising: (a) an alternating stack of one or more anodes and one or more cathodes; (b) one or more non-conducting separators separating the one or more anodes and cathodes; (c) an electrolyte; (d) a current collector extending through the stack; and (e) a casing holding the one or more anodes, the one or more cathodes, the one or more non-conducting separators, the electrolyte and the current collector

The invention provides a design and preparation method for a customized fixing support used after repair of finger flexor tendon injuries. The method comprises the steps that a three-dimensional model of skin on the affected side of an arm and a three-dimensional model of skin on the uninjured side of a hand are reconstructed by utilizing CT scanning data, the three-dimensional model of the skin on the uninjured side of the hand is mirrored by taking a sagittal plane as a symmetry plane, and the three-dimensional model of the skin obtained through mirroring is used for replacing a corresponding part of the affected side and is combined with a forearm of the affected side to form a new three-dimensional model of the arm; the customized fixing support is designed by using the combined three-dimensional model as a basis, a finger part of the support adopts a rotary adjusting design, and therefore regular adjustment and coordination with early-stage functional exercise can be realized; and finite element analysis and mechanical experiments on the support are carried out, and the support is manufactured through 3D printing. According to the design and preparation method for the customized fixing support used after repair of the finger flexor tendon injuries, the designed and prepared customized support is accurate in shape, convenient to wear and good in fitting effect, and the method is superior to a traditional support manufacturing technology in terms of the precision, the machining efficiency, the material utilization rate and the like.

A roofing system and roofing shingles for use therein are disclosed. The roofing system comprises a multiplicity of courses of roofing shingles having a headlap portion, a buttlap portion, a lateral leading edge, and a lateral trailing edge, wherein the headlap portion has a width that is less than a width of the buttlap portion defining a reduced-width headlap, wherein the lateral trailing edge of a shingle in a course partially overlaps and partially abuts the lateral leading edge of an adjacent previously installed shingle to form an interlocking edge between adjacent shingles in the course, and wherein the lateral edge includes a trailing edge projection having a weather edge, a rear edge, and a variable breadth that increases toward the rear edge of the trailing edge projection.

The invention discloses a high-capacity long-service-life double-bag nickel-hydrogen battery. A battery pole plate consists of a bag type nickel positive electrode plate, a bag type hydrogen storage alloy negative electrode pole plate and a multilayer composite membrane or separation electrode grid positioned between the bag type nickel positive electrode plate and the bag type hydrogen storage alloy negative electrode pole plate; an electrode material of the bag type nickel positive electrode plate is prepared from positive electrode active materials, conducting agents, additives and bondingagents; an electrode material of the bag type hydrogen storage alloy negative electrode pole plate is prepared from hydrogen storing alloy powder, conducting agents and bonding agents; electrolyte isa KOH alkaline solution containing additives in a rich liquid state. Through positive and negative electrode formula optimization, electrolyte formula optimization, electrode preparation method process improvement and separation plate optimization selection, the electrode structure of the positive and negative electrodes is greatly optimized; the utilization rate of positive and negative electrodeactive substances is improved; the internal resistance of the battery is optimized and reduced; the chalking resistant and anticorrosion capability of negative electrode hydrogen storage alloy is improved; the low-temperature performance of the battery is improved; the cycle service life of the battery is prolonged.

The invention discloses a special microorganism compound fertilizer for the reproduction and growth period of rice, and relates to a fertilizer which is made from the following materials: urea, ammonium sulfate, ammonium dihydrogen phosphate, potassium sulfate, magnesium sulfate, calcium nitrate, zinc chloride, copper chloride, manganese sulfate, ferric sulfate, ferrous sulfate, sodium molybdate, boric acid, decomposed farmyard manure, animal viscera leftovers, fermented rapeseed meal, corn straws, filler and a microbial agent. The special microorganism compound fertilizer can effectively improve the ratio of content of each element in the soil, can well fit with the nutrition demand law of the reproduction and growth period of the rice, and can ensure the growth quality of the rice in the reproduction and growth period, the material utilization rate of the fertilizer is enhanced, the rice grain quality is improved, and the special microorganism compound fertilizer has very good promotion use value.

The invention relates to a concrete and a preparation technology thereof. The concrete comprises water, cement, fly ash, mineral powder, straw powder, machine-made sands, natural sands, broken stones,modified recycled aggregates and an additive. An aggregate modification process comprises the following steps: S1, the recycled aggregates are infiltrated with 1-3% acetic acid for 1-2 h to obtain afirst product; and S2, the first product is washed with water, then is added to a slurry prepared from water, calcium sulphoaluminate, cement, fly ash and straw powder, and is wrapped to form a secondproduct with a thickness of 1-2 mm, and the second product is coagulated to obtain the modified recycled aggregates. The preparation technology of the concrete comprises the following steps: 1, adding the cement, fly ash, mineral powder and straw powder to water, and performing uniform stirring to obtain a first mixture; and 2, adding the machine-made sands, natural sands, broken stones, modifiedrecycled aggregates, the additive and the remaining water to the first mixture, and performing uniform stirring to obtain the concrete. The recycled aggregates are used after being modified, so the problem of increase in the dry shrinkage rate and the creep property of the concrete, caused by the self characteristics of the recycled aggregates, is improved.

The invention discloses a controlled-release fertilizer special for nectarines. The controlled-release fertilizer is composed of a material A, a coating A, a material B and a coating B. The material A is prepared from urea, potassium fulvic acid, calcium superphosphate, manganese sulfate, boric acid and bentonite. The coating A is prepared from carboxymethyl starch, carboxymethyl cellulose and acetic acid starch. The material B is prepared from urea, monopotassium phosphate, ammonium dihydrogen phosphate, magnesium sulfate, wormcast, rape seed cakes, tea residues, vermiculite and seaweed gel. The coating B is prepared from alcohol acid resin, chitosan and polyvinyl alcohol. The unique two-layer coating treatment is adopted for the controlled-release fertilizer special for nectarines, release of nutritional ingredients in different stages is well controlled, and the material A and the material B which are wrapped inside with different composition proportions meet the nutritional ingredient demands of nectarines in different stages; by means of the design, the labor intensity of people for fertilizer application of multiple times can be reduced, and the trouble of blending fertilizer at different stages is also saved; due to the fact that the fertilizer has the controlled-release effect, the utilization rate of matter is high, fertilizer application cost is reduced, meanwhile, the yield of nectarine fruits can be increased by 20-30%, and good economic benefits are achieved.

The invention relates to a method for preparing a lithium battery cathode and a lithium battery prepared from the cathode belonging to field of battery preparation. The invention provides a preparation method, which is capable of continuously producing, with low material loss and less discharge of the three wastes for the lithium battery cathode and the lithium battery prepared from the cathode. The preparation method includes steps: A. material mixing: sequentially stirring and mixing emulsifying agent, deionized water, acetylene black and polytetrafluoroethylene(PTFE) suspension solution by weight ratio of 1-3:71-76:20:4-6 to obtain a cream; B. drying; C. impregnating; D. pole sheet filming: tabletting and drying the cream particles and a metal afflux net to obtain the battery pole sheet. Advantages of the method are that material utilization rate is high, products consistency is good, continuous and automatic working is easy to be realized, the three wastes discharge is reduced, and applied prospect is wide.

The invention belongs to the technical field of chemical adhesives, and relates to a polyurethane moisture-curable hot-melt edge sealing adhesive and a preparation method thereof. Based on weight part, the polyurethane moisture-curable hot-melt edge sealing adhesive comprises the following components: a polyester polyol mixture, diphenylmethyl diisocyanate, a plasticizer, a chain extender and a tackifying resin, wherein the polyester polyol mixture has the relative molecular weight of 1,000-7,000 and is one or more of PHL-1600, PH-2000, CMA-1044 and CMA-44; and the polyurethane moisture-curable hot-melt edge sealing adhesive does not contain any organic solvent, has the solid content of 100 percent, is short in positioning time, quickly and accurately adhere between a decorative film and a to-be-decorated base material, has high adhesive strength and high peel strength, can prevent the influence of water and other adverse environmental factors, has a flexible and elastic adhesive layer and can resist mechanical impact of edge parts in the subsequent polishing decoration process.

The invention discloses a fertilizer specially used for ginger. The fertilizer is prepared from, by weight, 40-50 parts of urea, 15-25 parts of calcium superphosphate, 80-90 parts of potassium fulvate, 0.04-0.06 parts of 2-diethylaminoethyl hexanoate, 40-60 parts of earthworm manure, 3-5 parts of traditional Chinese medicinal residues and 10-15 parts of diatomite. The fertilizer disclosed in the invention is prepared through reasonably matching an inorganic fertilizer and an organic fertilizer meets nutrient demands of ginger growth; and a mass ratio of nitrogen to phosphorus to potassium in the fertilizer is about 1:0.6:2, so the ginger growth rule is met, the resource utilization rate is improved, soil environment is improved, grown ginger has high nutrition values, special flavor and low incidence of diseases, and the output is increased by 20-30%. The fertilizer has the advantages of easily available raw materials, simple preparation method and good economy values, and is worth to be popularized.

The invention discloses an ecological benefit and mixed culture method of sipunculus nudus. According to the ecological benefit of the sipunculus nudus disclosed by the invention, the effect of the sipunculus nudus on improving the breeding ecological environment is researched, the situations that the sipunculus nudus has a migration effect on organic matters of sediments and also has biological disturbance behaviors are found, and the physical and chemical characteristics of the sediments and sediment-water interfaces can be improved. The sipunculus nudus is in mixed culture in a pond with a sandy bottom or a silt bottom, so that the substance utilization rate of a breeding system can be increased, and besides, the breeding water body environment is improved. According to the mixed culture method disclosed by the invention, the sipunculus nudus and penaeus monodon can be in the mixed culture on the basis of a good scientific basis and good practical data, for example, the sipunculus nudus and the penaeus monodon have similar requirements for temperature, salinity and the like; besides, meshes are covered, so that the probabilitythat the penaeus monodon preys on the sipunculus nudus can be obviously reduced; the breeding functions of the sipunculus nudus and the penaeus monodon have a complementary relationship. The situation that the sipunculus nudus is unceasingly bred for 60-80 days after the penaeus monodon is harvested so as to solve problem that the breeding cycle of the sipunculus nudus and the breeding cycle of the penaeus monodon are not incompletely synchronous is also found.

The invention discloses a method for constructing an ecological island reef type marine pasture. The method comprises the steps that a semi-closed bay facing offshore island reefs is selected to be the marine pasture with a depth of 10-20 meters; according to a preset marine pasture scale, a plurality of sets of fixed rafts are sunk outside an island reef shore base, each fixed raft is connected with a boom cable, and the tops of the boom cables are tied with buoys; a polyethylene rope is fixed to the island reef shore base above the water surface, a first anchor chain is embedded in an islandframe in advance, a second anchor chain is sunk in a sea floor hard sand substrate, net clothes of more than one layer are connected between the polyethylene rope and the first anchor chain and the second anchor chain to form a net cage, and fishes proliferate in the net cage; seaweed breeding floating rafts are constructed outside the net cage; sea cucumbers are planted at the bottom of the netcage. Compared with the prior art, the method can maintain the maximum economic output while not causing environmental pressure by relying on the advantage of an island reef area.

The invention provides a fragment leakage prevention flexible skirt for a portable explosion-proof barrel/tank. The problem that fragments are leaked when ground explosives are disposed by the portable flexible explosion-proof barrel/tank can be effectively solved, and damage on property and injury on people all around when suspected explosives are exploded are reduced to the greatest extent. A blanket body made of a flexible material is arranged in the center of the flexible skirt; the blanket body is provided with an inner ring opening; the setting position of the upper part of the bottom ofthe explosion-proof barrel/tank or the top of a barrel body can be arranged in the inner ring opening in a sleeved manner; and it is guaranteed that the skirt part close to the outer contour line ofthe flexible skirt can be bonded on the ground for secondary interception of the fragments according to the size of the flexible skirt when the explosion-proof barrel/tank sleeves the inner ring opening of the blanket body. The flexible skirt has different using modes aiming at two different explosive disposition modes of the portable flexible explosion-proof barrel/tank, the using amount of protective materials in the explosion-proof barrel/tank can be reduced after the flexible skirt is adopted, and the problem that the use ratio of the protective materials is low due to difference of fragment group distribution ranges that the portable flexible explosion-proof barrel/tank is subjected to under two working conditions can be solved.

The invention relates to flame retardant rigid polyisocyanurate foam and a preparation method thereof. The flame retardant rigid polyisocyanurate foam is prepared from the following components in parts by weight: 150-170 parts of polyisocyanate, 5-8 parts of polyether polyol, 15-20 parts of flame retardant, 2-3 parts of catalyst, 1-2 parts of stabilizer, and 15-20 parts of foaming agent. The flameretardant is prepared by mixing a nitrogen-containing flame retardant and a phosphorus-containing flame retardant at the mass ratio of 1:1. The preparation method comprises the following steps: S1, mixing an additive; and S2, preparing rigid polyurethane foam. The flame retardant rigid polyisocyanurate foam has the advantages of being good in flame retardant effect, high in rigid foam performanceand suitable for industrial production.

The invention relates to an optical fiber panel and a preparation method thereof, and the preparation method comprises the following steps: obtaining a secondary multifilament by pulling a monofilament, discharging a primary multifilament rod, pulling a primary multifilament, discharging a secondary multifilament rod, and pulling a secondary multifilament; cutting the second multifilament to obtain a first multifilament and a second multifilament; compacting the first multifilament into a hexagonal prism to obtain a first plate segment; wrapping the first plate segment with the second multifilament to obtain a second plate segment; and performing melt pressing and machining of the second plate segment to obtain an optical fiber panel; wherein the length of the second multifilament is greater than that of the first multifilament. The method limits the uneven deformation occurring at both ends of the plate segment during melt-pressing, and corrects the distortion of the magnification, and thereby improving the material utilization rate.

The invention discloses a comprehensive bio-organic fertilizer capable of improving quality of agricultural products and a preparation method of the comprehensive bio-organic fertilizer, and relates to the technical field of agricultural fertilizers. The comprehensive bio-organic fertilizer capable of improving quality of agricultural products is prepared from, by weight, 45% compound fertilizer,fecal residue and waste water, bean pulp, crop straw, amino acid, calcium oxide, microelement, biological bacteria, swill, waste residues of fungi and composite additives. The preparation method includes the steps of (1) preparation of raw materials; (2), pretreatment of the raw materials, including pretreatment of bean pulp, swill and waste residues of fungi; (3), primary fermentation; (4), secondary fermentation; (5), tertiary fermentation; (6), drying; (7), mixing. The comprehensive bio-organic fertilizer has the advantages of neutralizing soil acidity, improving soil structure, removing hardened soil, improving contents of organic matters and microbial flora in soil, improving quality of agricultural quality and the like, and is applicable to planting of fruits and vegetables in the South of China.

The invention discloses a long-acting aroma improving device. The long-acting aroma improving device comprises an aroma improving cabinet, wherein the aroma improving cabinet is internally provided with a plurality of aroma improving units which are arranged from top to bottom; each aroma improving unit comprises an aroma improving tray and an aroma raw material tray; the aroma improving trays are arranged above the aroma raw material trays; heating plates are arranged under the aroma improving trays and the aroma raw material trays; the top of the aroma improving cabinet is provided with a vacuum pump through a vacuum valve; the bottom of the aroma improving cabinet is communicated with a spice room through an aroma improving valve; a heating base is arranged at the bottom of the spice room; and an oil inlet pipe with an oil inlet valve is arranged at the top of the spice room. The invention further discloses an aroma improving method; the utilization rate of aromatic substances is high and the loss is small; the aromatic substances directly enter inner tiny pores of tea leaves or other dried foods, and the aroma can be kept for long time; and meanwhile, a large batch of the tea leaves or dried foods can be treated at the same time.