34results about How to "Uniform yield" patented technology

The invention discloses a sublevel shrinkage caving stage open afterwards filling mining method. In the earlier stage of stoping, caved ores are utilized to support surrounding rocks on a top tray, and in the later stage of stoping, a goaf area is filled with fillers to control ground pressure so as to achieve safe and efficient mining. Ore blocks are mined in two steps, mining blocks in step two are stoped after the mining blocks in step one are stoped and filled. After the ores are completely let out, the goaf area is filled with the fillers to control the ground pressure. Because the stoping modes of sublevel ore caving, sublevel shrinkage, final ore drawing and empty area afterwards filling are adopted, the mining method has large one-time filling amount and low cost; the method adopts middle-deep hole drilling and blasting and carry scraper ore removal, and the device has high level and large production capacity; the method has the advantages of large production capacity of the sublevel caving method and the stage open stope method, high recovery rate of the filling method, and earth surface protection; the safety is good, and drilling, ore removal and other operations are all carried out in a sublevel drilling and ore removal approach roadway; and the ores can be removed in advance, and the ores can be removed partially after the first sublevel is ready.

A method of production of semiconductor light emission devices for forming stripes of two multilayers having different emission wavelengths on a substrate, including the steps of: depositing a first multilayer including an active layer on the substrate; selectively etching the first multilayer to form a plurality of adjoining pairs of stripes of the first multilayer; depositing a second multilayer including an active layer on the substrate and the stripes of the first multilayer; selectively etching the second multilayer to form a plurality of adjoining pairs of stripes of the second multilayer on the substrate between the stripes of the first multilayer; and dividing the substrate between adjoining pairs of stripes of the first multilayer and between adjoining pairs of stripes of the second multilayer to divide it into semiconductor light emission devices provided with a stripe of the first multilayer and the second multilayer having different emission wavelengths.

The invention relates to non-wood fiber continuous cooking method and device. A suction filter plate is arranged on a cooking pipe of the traditional horizontal-pipe continuous cooking device so that cooking liquor can be charged into the cooling device again after being sucked through the suction filter plate and then heated through an external heat exchanger, therefore the purpose of indirect heating is realized; an intermediate pipe completing cooking is internally provided with a replacement filter plate; hot black liquor contained in pulp is replaced with cold black liquor, therefore cold blow is realized, and meanwhile the blown pulp achieves the degree of pulp washed by a vacuum pulp washer by replacing washing pulp; the suction filter plate and the replacement filter plate can be replaced and disassembled; the suction filter plate is self-cleaned depending on propeller scrapers of a screw shaft and is also provided with a back flushing device for forcible periodical cleaning; the replacement filter plate is cleaned depending on a stainless steel brushes positioned on rotary wings of a vertical type discharger and is also configured with back flushing liquid for forcible periodical cleaning; and the self-cleaning and the forcible periodical back flushing of the filter pates can ensure the smoothness of filter plate holes, therefore the purpose of continuous pulping is realized.

The invention provides a method for producing pyrroldone carboxylic acid and salt thereof. The method comprises the following steps of: adding glutamic acid or univalent salt of glutamic acid and a catalyst in silicone oil or white oil, heating the mixture to the temperature of between 150 and 250 DEG C for cyclized dehydration to obtain the L-pyrroldone carboxylic acid with high yield and high optical purity or univalent salt thereof, wherein the whole process is carried out at the normal pressure; after the reaction lasts for 30 minutes to 6 hours, adding deionized water to dissolve the L-pyrroldone carboxylic acid in the reaction solution, and separating the mixed solution to obtain the target product; and adding corresponding alkali solution to neutrally react with the L-pyrroldone carboxylic acid, and separating the mixed solution to obtain the corresponding solution of L-pyrroldone carboxylic acid salt. In the method, the catalyst is used in the reaction system and the reaction is carried out at the normal pressure, so that the yield and optical purity of the product are improved, and the reaction time is shortened; and the white oil or silicone oil is introduced as a thermal conduction medium, so that the reaction solution can transfer heat more evenly and the reaction temperature is controlled more easily. The invention provides a method for effectively producing the pyrroldone carboxylic acid and the salt of pyrroldone carboxylic acid from the L-glutamic acid and the univalent salt of L-glutamic acid.

An accessory member for alkali metals dispensers is provided in the form of a screen (30; 40; 60) of substantially tubular shape, one end (34; 44; 64) of which can be applied to an alkali metals dispenser (10). The cross-section of the one end is superposable to an entire alkali metals emission zone (14) of the dispenser (10). The contact portion between the one end (34, 44; 64) and the dispenser (10) is made with a low thermal conductivity material. The screen (30; 40; 60) is provided with an internal surface having a high specific area.

The invention discloses a controlled preparing method of pseudo one-dimensional boron nitride nanometer structure through adjusting preparation parameter to control diverse pseudo one-dimensional boron nitride nanometer structure, which comprises the following steps: choosing bis nickel, bis ferrum, bio cobalt or the mixture as suspended activator forerunner body; volatilizing in the low temperature region; carrying through gas-carrier to high-temperature region; disintegrating to metallic catalyst; accelerating B2O2 vapour generated through mixing boron powder and boron oxide to react with ammonia gas; generating the product; getting boron nitride nanometer thread and bamboo joint state boron nitride nanometer pipe with diverse diameter and outlook through controlling component, time, temperature of the activator. The structure of the boron nitride nanometer thread and pipe possesses essential difference, which the front (0002) face grow vertically and the back (0002) face parallel-grows.

The invention relates to a method for preparing hydrogen electrode composite powder of a solid oxide electrolyzer, belonging to the field of high-temperature steam electrolysis hydrogen preparation and solid oxide electrolyzer. The preparation method comprises the steps of: with nickel nitrate, YSZ (Yttria Stabilized Zirconia) powder and urea as raw materials, controlling reaction conditions of the addition of the urea, the hydrolysis temperature of the urea and ultrasonic time when the powder is prepared, depositing NiO on a YSZ particle through two-step reactions of homogeneous precipitation and low-temperature spontaneous combustion, and finally preparing the NiO-YSZ hydrogen electrode composite powder of the solid oxide electrolyzer through roasting, wherein the nickel nitrate is used as a nickel source, the YSZ powder is used as a core of a composite powder and the urea is a settling agent in a uniform settling process and a combustion improver in a combustion process. The NiO-YSZ composite powder prepared by using the method has the advantages of good adhering property of two phases of NiO and YSZ, uniform dispersing, accurate stoichiometric proportion, strong catalytic activity, high utilization ratio of the nickel, and the like. The invention is suitable for preparing the NiO-YSZ hydrogen electrode composite powder of the solid oxide electrolyzer.

The invention discloses a shaping and pruning method for Snow Peach trees. The method comprises the following steps: (1) young tree pruning; (2) first-fruiting tree pruning; (3) full-bearing tree pruning; (4) aging tree pruning; and (5) flower thinning and fruit thinning. According to Snow Peach tree growth conditions, in-time and effective pruning is performed on the Snow Peach tree plants in the above steps. The invention provides the shaping and pruning method for the Snow Peach trees, the survival rate of the Snow Peach tree plants is greatly increased by using the method, and the method is simple in operation, and has a greatly promoting effect on growing and fruiting of the Snow Peach tree plants.

A method for improving animal body weight uniformity or for increasing animal carcass yield is disclosed. The method involves administering an agent to one or a group of animals wherein the agent can reduce bioavailability of a prostaglandin or leukotriene lipid precursor. In a preferred embodiment, the agent employed is an anti-PLA₂ antibody.

The invention discloses a high-yield planting method of honey peaches, pertaining to the technical field of plantation of honey peaches. The method comprises the following steps: (1) land selection and preparation; (2) seedling selection; (3) fixed planting; (4) top dressing; (5) management of trees; (6) prevention and control of pests and diseases; (7) harvesting. The high-yield planting method of honey peaches has the following beneficial effects: the method is reasonable and scientific; mouth feel of honey peaches is improved; and quality and output of honey peaches are improved.

The invention provides an artificial aggregate and a preparation method thereof. The artificial aggregate comprises the following components in parts by mass: 500-1000 parts of casting waste ash, 50-100 parts of bentonite, 0-100 parts of fly ash and 0-5 parts of coal powder. According to the invention, the artificial aggregate has advantages of low density, low water absorption, high strength andthe like; with the application of the artificial aggregate to construct large-span bridges and super high-rise buildings, the self-weight of the constructed structure can be reduced by 30-40%, the labor intensity can be reduced by about 20%, the material transportation amount can be reduced by 30-40%, the steel bar amount can be saved by about 10%, the construction cost can be comprehensively reduced by 10%, the self-weight of the structures can be greatly reduced, and the foundation load can be reduced; with the method, the casting waste ash and the fly ash are used as the raw materials, so that the waste ash in the casting process and the fly ash generated by the coal-fired power plant are effectively utilized so as to reduce the production cost; and the product yield is consistent, andthe stability is high.

The invention discloses a formula treatment process for a consistent-quality and stable edible fungus culture medium. The treatment process comprises the steps of preparation of the edible fungus culture medium and treatment of the edible fungus culture medium, wherein the edible fungus culture medium is prepared by adopting the following raw materials in percentages by weight: 60%-80% of a main material, and 20%-40% of an auxiliary material, the main material includes one or more selected from the group consisting of wood chips, cottonseed hulls, rice bran, bran and corncobs, and the auxiliary material includes one or more selected from the group consisting of bagasse, beet residues, soybean meal, lime, gypsum powder and corn flour. The formula treatment process for the consistent-qualityand stable edible fungus culture medium disclosed by the invention has the advantages that the materials are simple and easy to obtain and nutrient elements are abundant; a scientific ratio method isused, and the nutrient elements and living environment required for growth of edible fungi are met; and edible fungus mushrooms produced by the formula treatment process for the consistent-quality and stable edible fungus culture medium have a uniform yield, the edible fungi have uniform sizes, and the process is a major breakthrough in the edible fungus industry.

The invention discloses a touch screen system based on a surface acoustic wave technique. The system comprises a base plate and a controller, wherein the front surface of the base plate can be divided into a boundary area and a middle touch area, and a smooth round rim is arranged between the outer brim of the boundary area and the bottom surface of the base plate; the back of the base plate is provided with an energy transducer array which comprises a transmitting energy transducer array and a receiving energy transducer array; the transmitting energy transducer array emits an acoustic wave outwards, the acoustic wave passing along the smooth round rim of the base plate is transmitted by the smooth round rim of the base plate to the front of the base plate, then transmitted by the other corresponding smooth round rim of the base plate and received by the receiving energy transducer array arranged on the back surface of the base plate; the boundary area is provided with an emitting stripe array used for reflecting surface acoustic waves transmitted along one brim of the surface of the base plate; a controller is connected to the transmitting energy transducer array and the receiving energy transducer array through signal lines separately, and used for controlling the function of the transmitting energy transducer array and the receiving energy transducer array, processing received signals through a built-in program and then transmitting the signals to a computer through communication lines.

The invention discloses a high-yield rheum officinale cultivation technique. The technique includes land selection and preparation and fertilization, sowing, field management, disease and pest damageprevention and control and harvesting and processing and is characterized by including steps: (1) land preparation and fertilization, to be specific, selecting a high, deep, loose, fertile, organic-rich and well-drained sandy soil plot as a base, and performing deep ploughing, careful cultivation, land preparation and sufficient base fertilizer application; (2) sowing and transplanting, wherein rheum officinale seed breeding includes seedling cultivation and transplanting, and sowing time includes spring sowing time and autumn sowing time; (3) field management, after rheum officinale seedlingsare uniform, performing intertillage weeding to guarantee no weeds in the plot, timely watering in drought weather, and draining in overcast and rainy weather; (4) disease and pest prevention and control; (5) harvesting and processing. The yield of rheum officinale cultivated according to the rheum officinale cultivation technique reaches 5000kg per mu, uniform and high medicine quality is realized, and yield is guaranteed.

The invention discloses an organic fertilizer capable of increasing watermelon yield. The organic fertilizer is prepared from the following components in parts by weight: 8 to 12 parts of chitosan oligosaccharide, 25 to 35 parts of seaweed extract and 3 to 5 parts of plant powder, wherein the plant powder is prepared by the following steps: mixing 45 to 55 parts of insect powder plant, 45 to 55 parts of bay leaf, 35 to 45 parts of airpotato yam rhizome, 35 to 45 parts of pungent litse fruit, 25 to 35 parts of radix stemonae, 18 to 23 parts of pepper and 25 to 35 parts of herba selaginellae; performing superfine grinding on the mixture; screening with a 300-mesh screen to obtain the organic fertilizer. By adopting the organic fertilizer capable of increasing the watermelon yield, the immune function of a watermelon plant can be enhanced, and the disease resistance and anti-bacterial ability are enhanced; the organic fertilizer is rich and comprehensive in nutrition, and can enhance the self-growth-regulating and absorption balance capabilities of crops in order to keep nutrition balance of the watermelon, so that the fruit setting number of the watermelon is increased, the watermelon cracking number is reduced, and the yield and quality of the watermelon are improved at different degrees.

The invention discloses a micro-bubble generating device for a biological leaching reactor. The micro-bubble generating device comprises a film assembly capable of being placed in the biological leaching reactor, a gas supplying device used for conveying gas, and a liquid injecting device used for pumping liquid. The film assembly is internally provided with a gas cavity and a film pipe accommodated in the gas cavity. The gas in the gas cavity can enter the film pipe. The gas supplying device and the film assembly are connected so that the gas supplying device can conveniently inject the gas into the gas cavity of the film assembly. The liquid injecting device and the film assembly are connected so that the liquid injecting device can conveniently pump the liquid into the film pipe in thefilm assembly, and the liquid and the gas in the film pipe are mixed to form micro-bubbles to be output into the biological leaching reactor. According to the micro-bubble generating device, lots of the micro-bubbles can be generated, oxygen transferring of the micro-bubbles is greatly improved, and cutting can be conducted by relying on circulating liquid, so that the size of the bubbles is reduced.

The invention discloses a pruning method for regulating and controlling the guava production period. The pruning method comprises the following steps: pruning for four times: pruning a southern crown for the first time, and retaining a northern crown; when 3-5 pairs of leaves at the base parts of the newly grown branches of the southern crown subjected to the first pruning turn green, pruning the northern crown; after newly grown bearing branches of the southern crown subjected to the first pruning blossom and bear fruits, pruning the bearing branches of the southern crown and vegetative branches which do not bear fruits; after newly grown bearing branches of the northern crown subjected to the second pruning blossom and bear fruits, pruning the bearing branches of the northern crown and vegetative branches which do not bear fruits; and realizing that one fruiting tree blossoms and bears fruits for four times every year through the four times of pruning, and harvesting four batches of fruits. The pruning method can balance vegetative growth and reproductive growth of the guava fruiting trees, regulate and control the yield of fruits in different batches, stagger the ripening and marketing time of the guava fruits, increase the yield and improve the quality, thereby increasing the economic benefits.