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67results about How to "Method advanced science" patented technology

Water turbine blade blank profile measuring and machining allowance analyzing method

The invention relates to a water turbine blade blank profile measuring and machining allowance analyzing method capable of effectively solving the problem of water turbine blade blank profile measurement and machining allowance analysis to ensure the manufacturing quality and precision of the water turbine blades, comprising the following technical solutions: measuring the blade blanks by using a digital close range photogrammetry to obtain the measuring point cloud data shapes of the blank profiles consequently, aligning a measuring coordinate system where the measuring point clouds are located to a design coordinate system where a CAD design model is located, establishing a differential relation of free-form surface parameters with respect to rigid rotation parameters by using an analytic method derived by the multivariate of Newton iteration method to obtain a Jacobian matrix and Hessian matrix which are available for a target equation; then performing the numerical optimization calculation based on the LM method and Newton iteration method, and performing report or graphical output and print on the result. The inventive method is scientific, advanced, stable and reliable, and has high accuracy, thereby ensuring the hydraulic stability, production efficiency and cavitation property, and bringing enormous economic and social benefits.
Owner:郑州辰维科技股份有限公司

Method for cultivating medium-speed high-quality spotted-brown chickens suitable for slaughtering and living body marketing

The invention relates to a method for cultivating medium-speed high-quality spotted-brown chickens suitable for slaughtering and living body marketing. The method comprises the following steps: takingslow-feathering, yellow-shank, yellow-skin and recessive white-feathering chickens (B line) as a first female parent; and taking fast-feathering, yellow-shank, yellow-skin, spotted-brown-feathering and big-cockscomb chickens (C line) as a first male parent. According to the genetic principle of fast and slow feathering self-sexing, a parent generation (BC line) is produced by crossing a B line and a C line to serve as a terminal female parent, parent generation chicks can self-sexing through fast and slow feathering, hens are fast-feathering chickens, and cocks are slow-feathering chickens. The commercial generation (ABC) is produced by using fast-feathering, yellow-shank, yellow-skin, large-cockscomb and spotted-brown-feather fast large line (A line) as a terminal male parent and three line mating hybridization of male A line X (male B line X female C line) female, commercial generation cocks have the characteristics of fast feathering, yellow shank, yellow skin, sexual precocity, large cockscomb, wide chest and the like. The commercial generation is marketed when at the age of 90-95 days, the carcass is beautiful, the feather color is bright, the cockscomb is large, the meat production performance is good, the meat quality is good, the carcass packaging property of high-quality chickens and the packaging property of living body marketing are obviously identified, and the marketing standard of medium-speed slaughtered high-quality chickens and live chickens is met.
Owner:JIANGSU INST OF POULTRY SCI

Power-on water-bath steel wire quenching heat treatment method

InactiveCN101503751AQuenching achievedHigh cost of heat treatmentFurnace typesQuenching agentsWater bathsSocial benefits
The invention relates to a method for quenching heat treatment of a steel wire in a power-on water bath, which can effectively solve the problems of high cost of heat treatment of the steel wire, fire striking phenomenon between the steel wire and conductive rollers, generation of martensite when the steel wire passes through a water bath tank at low speed, and poor insulativity of equipment and a pipeline. The invention adopts a technical proposal that the steel wire is tensioned by a tensioning device, passes through an insulation protection sleeve after tensioning, is compacted by an insulated tension roller, passes through a first conductive roller, horizontally passes through a refractory heat-insulated sleeve, passes through a parallel insulated carrier roller which is on the same plane with the first conductive roller, is compacted by a second conductive roller and sprayed by a cold water pipe, enters two upper tanks which are arranged on the water bath tank and communicated with the water bath tank, passes through the two upper tanks, and is quickly cooled, and quenching of the steel wire is realized. The invention has simple equipment, scientific and advanced method, low cost and non environmental pollution, effectively solves the problems of the fire striking phenomenon between the steel wire and the conductive rollers, generation of the martensite when the steel wire passes through the water bath tank at low speed, and poor insulativity of the equipment and the pipeline, and has significant economic benefit and social benefit.
Owner:张国宝

Processing method capable of improving quality of large-leafed summer and fall round cake black tea

The invention relates to a processing method capable of improving the quality of large-leafed summer and fall round cake black tea, belonging to the technical field of tea processing. The processing method takes fresh one-bud and two-leaf or one-bud and three-leaf Yunnan large-leafed summer and fall tea as a raw material, and comprises the following steps: picking fresh tea, withering, carrying out fine manipulation of green tea leaves, rolling, fermenting, drying, processing the tea to be red, removing impurities by screening, pressing and improving aroma of the tea to finally obtain the high-quality black tea product. After the processing method is adopted, the traditional technology of the black tea is improved and optimized, the bitterness of the traditional summer and fall black tea is eliminated, the aroma of the tea is improved, the inherent flavor and the advantage of cost performance are improved, and thus the high-quality black tea which is affordable, rich in aroma, red and bright in color of tea soup, mellow and brisk in taste and red and bright in tea bottom can be provided for consumers. The processing method has great significance for improving the quality of the black tea, researching and developing high-quality black tea, improving the additional value of products and increasing the economic benefits of tea farmers and enterprises.
Owner:JIANGNAN UNIV

Regeneration device for activated carbon for adsorbing organic waste gas and method thereof

The invention relates to a regeneration device for activated carbon for adsorbing organic waste gas and a method thereof. The regeneration device comprises an activated carbon regeneration unit, a waste gas treatment unit and a gas exhaust unit in sequence from left to right, wherein the three units are connected in sequence in a running-through manner; the activated carbon regeneration unit comprises a drying fan, a steam blowing-off machine, an activated carbon fixation box and a first gas accumulation cover; the waste gas treatment unit comprises a waste gas accumulation pipe, a condenser, a condensed fluid collection tank, a centrifugal fan, a waste gas collection pipe, an air centrifugal fan, a mixing chamber, a combustion chamber, an ignition device and a second gas accumulation cover; the gas exhaust unit comprises a gas accumulation pipe, a heat exchanger, a centrifugal fan and a gas exhaust pipe. The regeneration device is reasonable in structure, convenient to use, high in treatment efficiency and advanced and scientific in method; by utilizing a low-temperature heating regeneration method, the blowing off is carried out by using steam at 100 to 200 DEG C to regenerate carbon; the influence of a conventional high-temperature heating regeneration method on a matrix of the activated carbon is avoided; the waste gas generated in a regeneration process is treated by adopting a direct combustion method and the secondary pollution to an environment is avoided.
Owner:YANGZHOU UNIV

Fast and accurate medical service method and system for patients

The invention discloses a fast and accurate medical service method and system for patients. The method comprises steps of establishing a medical database, receiving requests, waking up medical treatment-needing person service, making an appointment, initial diagnosis and diagnosis result feedback. The system comprises a server storage module, a medical treatment-needing person client module, an appointment selection determination module, a medical staff client module, a communication module, a voice input processing module, a text input module, a query archiving keyword generation module, a screening retrieval result generation module and a feedback module. The method and the system are advantaged in that problems that the medical procedure is cumbersome and difficult to register in the prior art can be solved, medical service efficiency and portability can be effectively improved, the waiting time is reduced for medical treatment-needing persons, the medical care pressure is alleviated, the accurate and efficient self-service is achieved through the Internet technology, and properties of high system intelligence degree, advanced and scientific methods, relatively high practical value and broad application prospects are further achieved.
Owner:HEFEI TONGYOU ELECTRONICS TECH CO LTD

Steady numerical calculation-based hydraulic stability analysis method for pump device

The invention relates to a hydraulic stability analysis method for a pump station, in particular to the pump station for multi-mode operation and belongs to the technical field of hydraulic engineering pump stations. Tangential speeds of various points of an inlet section of an outlet passage are obtained on the basis of a three-dimensional steady numerical calculation result of the whole passage of a pump device; a calculation formula of a momentum parameter SM is built; and the tangential speed of the inlet section of the outlet passage is determined by the calculation formula of the momentum parameter SM. The method is advanced and scientific; by the method, the hydraulic stability of the pump device in different schemes can be comprehensively compared; the oneness that only the efficiency of the pump device is adopted as an evaluation index is avoided; the problems of long elapsed time and high requirements on hardware equipment when the whole passage of the pump device is determined by a three-dimensional unsteady numerical calculation method are solved; quick analysis on the actual hydraulic stability of the pump station is facilitated; the time period of comparing pump station schemes is shortened; the target of quickening the engineering scheme selection progress of the pump station is achieved; and a reliable method is also provided for optimization of the pump device in different schemes.
Owner:YANGZHOU UNIV

Temporary support frame for mounting assembled lattice type steel structure and use method

PendingCN112324160ASections are light in weightEnsure the installation elevationBuilding material handlingShoresJackscrewEngineering
The invention relates to a temporary support frame for mounting an assembled lattice type steel structure and a use method. The temporary support frame comprises a base section, a standard section, anadjusting section inner section, an adjusting section outer section, an adjusting top support and an unloading jack, wherein the base section comprises a base section column limb, a base section lacing bar and a base section cross beam rod; the standard section comprises a standard section column limb, a standard section lacing bar and a standard section cross beam rod; and the adjusting sectioninner section comprises an adjusting section inner section column limb, an adjusting section inner section lacing bar and an adjusting section inner section cross beam rod. According to the temporarysupport frame, the defects of the prior art and devices are overcome, the construction space is saved, the erection period is short, and the repeated utilization rate is high; the lattice type sectionassembly is light in weight, high in bearing capacity and convenient to hoist; the sections can be flexibly assembled according to actual requirements and are conveniently installed; and a pluralityof height adjusting devices are arranged, so that the installation elevation of the steel structure is guaranteed, the installation of a variable-elevation complex steel structure can be met, and theunloading operation after the steel structure is installed is facilitated.
Owner:江苏扬建集团有限公司

Double-layer transport vehicle capable of widening, narrowing, stretching and shortening

The invention has the advantages that a vehicle head is not changed, a transportation vehicle body can be widened, narrowed, stretched and shortened. A plurality of groups of longitudinal beams are fixed at two sides of a girder of the transportation vehicle body; carriage plates at two sides are arranged on a drawing groove or a sleeve which can be widened or narrowed towards the two sides of thelongitudinal beams; an I-shaped passing car is arranged at the bottom of the longitudinal beams; the groups of hydraulic telescopic rods and telescopic sleeves are arranged between the vertical plates at two sides; a wheel drum and a tire are arranged on the outer sides of the vertical plates at two sides of the I-shaped passing car; a differential mechanism with the wheel drum capable of widening and narrowing towards the two sides is arranged on the shaft holes of the vertical plates at two sides of a bracket; a lifting device is arranged on the two sides of a lower-layer carriage plate, and the bottom parts of the carriage plates at the two sides of the upper layer are arranged at the top part of a hydraulic telescopic device in the lifting device; a telescopic joint, the telescopic sleeve and the hydraulic telescopic rod are arranged between the front part and the rear part of the transportation vehicle body; the hydraulic telescopic device is arranged in the telescopic joint; a hydraulic jacking device and an auxiliary getting-on and getting-off device are arranged at the tail part; the middle of the tail part is provided with a trailer device; an engine is arranged below a driving chamber, and a brake system, an oil circuit, an air circuit and the like are not changed.
Owner:宗春成 +1

Double-decker carrier vehicle with function that wheel span and carriages can be widened and narrowed

The invention relates to a double-decker carrier vehicle with a function that the wheel span and carriages can be widened and narrowed. The vehicle head is not changed, and it is achieved that a carrier vehicle body is widened and narrowed. Lower-layer cross beams and beams in the vehicle head are in the same group, a plurality of vertical beams are fixed to the two sides of the cross beams, and carriage boards on the two sides are installed on drawing slots or sheaths, which can make the carriage boards widened or narrowed towards the two sides, on the vertical beams. Differential mechanisms,axles and supports which can be widened or narrowed towards the two sides are installed on the bottom; a plurality of hydraulic telescoping rods and telescoping sleeves are installed between uprightplates on the two sides of the supports, and differential mechanisms for making hubs widened or narrowed towards the two sides and axles are arranged in shaft holes of lateral upright plates on the two sides of the supports; lifting devices are installed on the two sides of the lower carriage board, the rear portion is provided with a hydraulic jacking device and an auxiliary get-on/-off device, atrailer device is installed in the middle of the rear portion, and automobile steering and braking systems, oil circuits, gas circuits and electric circuits are not changed.
Owner:宗春成 +1

Novel corrosion-resistant nickel-based alloy and production process thereof

The invention discloses a novel corrosion-resistant nickel-based alloy and a production process thereof. The nickel-based alloy comprises the following components of, in percentage by weight, 29.5%-31.5% of Cu, 2.67%-3.45% of Al, 1.36%-1.83% of Fe, 1.23%-1.48% of Cr, 0.86%-1.13% of Mn, 0.53%-0.82% of Ti, 0.34%-0.61% of Nb, 0.29%-0.57% of Ta, 0.31%-0.44% of Si, 0.046%-0.085% of C, less than or equal to 0.005% of S, and the balance Ni. The novel corrosion-resistant nickel-based alloy has the obvious characteristics that the metal element Ni is a surface-centered cubic structure, has excellent crystallographic stability and can contain more alloy elements., the thermodynamic stability of the alloy is remarkably improved after the alloy elements Cu and Cr are added, the Cr, Nb, Ta and other metal elements can be oxidized on the surface of the alloy to form a compact passivation film, so that the corrosion resistance of the alloy material can be remarkably increased; and metal elements suchas Al, Ti, Fe, Mn and the like as well as non-metallic elements such as Si, C and S are added, so that the comprehensive mechanical property of the alloy material is remarkably improved. In addition,the nickel-based alloy is prepared by adopting a production process of solid-melt aging, the alloy metallographic phase is uniform and consistent, and the quality of the alloy finished product is stable.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

Blind man guide method and blind man guide system based on real-time road condition information optimization

The invention discloses a blind man guide method and a blind man guide system based on real-time road condition information optimization. The method comprises the steps of voice collection and analysis, route planning and design, real-time navigation information determination, timely navigation and broadcasting, and the like. The system comprises a storage module, a voice collection module, a voice data processing module, a positioning device module, a communication module, a route design determination algorithm module, a real-time navigation information determination module and an informationtransmitting and broadcasting module. The method and the system are stable and reliable, good in anti-interference performance and wide in application range, are capable of conveniently and timely guiding a blind man to travel in a complex environment, and have the advantages of being high in system intelligence, advanced and scientific in method, safe and accurate in travel route, and the like,thus greatly improving the freedom of movement of the blind man; the method and the system are practical and achievable, and have a higher practical value and a broad application prospect.
Owner:HEFEI XINYADA INTELLIGENT TECH CO LTD
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