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10742results about How to "Significant progress" patented technology

Spin milling type multifunctional machine for deeply ploughing and crushing ridges

The invention discloses a spin milling type multifunctional machine for deeply ploughing and crushing ridges, which is based on a tractor. A hydraulic mechanism and a linking spin milling drill bit device or a cultivation component is arranged on a rear frame of the tractor; the linking spin milling drill bit device is provided with one or more drill bit shafts; spiral hinges are arranged on the drill bit shafts and provided with apical teeth; the linking spin milling drill bit device is provided with a device for preventing a straw from being wound; the hydraulic mechanism drives a spin milling drill bit to move up and down; and a gearbox drives the spin milling drill bit by a connecting rod and a gear. According to the spin milling type multifunctional machine, the drill bit enters intosoil and then vertically cuts, spin mills and crushes the soil and ensures that the soil is automatically suspended to form the ridges; the soil crushing section of the crushed ridge is T-shaped; thelower part of the compacted soil on the ground is in a U-shaped groove, so that the whole layer of the soil is in a loosing state during cultivation; and in addition, the invention plays roles of covering and replacing the soil, increases an active layer, improves the capabilities of preserving moisture and fertility and the permeability of the soil, benefits the utilization of deep growing of the crop root system to water and fertilizer, relatively reduces pests and weeds and ensures that the crop is easy to obtain high and stable yield.
Owner:GUANGXI WUFENG MACHINERY CO LTD

Rare earth-containing high strength heat resisting magnesium alloy and preparation thereof

The invention relates to a high strength heat-resistant magnesium alloy containing rare earths of the technical field of metallic materials and a preparation method thereof. The magnesium alloy comprises the following components according to the mass percent: Y with more than or equal to 3% and less than or equal to 16%, Gd with more than or equal to 0% and less than or equal to 10%, Ca with more than or equal to 0.3% and less than or equal to 5%, Zr with more than or equal to 0.1% and less than or equal to 1.5%, and one or a plurality of Nd, Si, Sb, Ti, Sn, Sr, Bi, Cd, Nd with more than or equal to 0% and less than or equal to 5%, Si with more than or equal to 0% and less than or equal to 5%, Sb with more than or equal to 0% and less than or equal to 5%, Ti with more than or equal to 0% and less than or equal to 5%, Sn with more than or equal to 0% and less than or equal to 5%, Sr with more than or equal to 0% and less than or equal to 5%, Bi with more than or equal to 0% and less than or equal to 5%, Cd with with more than or equal to 0% and less than or equal to 5%, and the rest is Mg and impurities. The magnesium alloy is obtained by using melting and the subsequent heat treatment. The magnesium alloy not only can serve as casting magnesium alloy but also can serve as the deformation magnesium alloy and has better predominant mechanical property compared with the WE series commercial magnesium alloy.
Owner:SHANGHAI JIAO TONG UNIV

Process for preparing novel formulation of integrative traditional Chinese medicine and production method thereof

The invention relates to a process for preparing a novel formulation of an integrative traditional Chinese medicine and a production method thereof. Traditional Chinese medicine simple recipe, traditional Chinese medicine compound recipe, integrated Chinese and western medicine compound recipe and integrated Chinese and western medicine composition are prepared by utilizing a nanometer vector combination process. The production method comprises the following steps of extracting with alcohol-water, crushing and extracting in an ultrasonic manner, extracting in a microwave manner, decocting in water and condensing, spraying and drying, homogenizing under high pressure, grinding to be nanometer particles, preparing the nanometer particles and the like. The invention pays attention to the advantages of nanometer traditional Chinese medicine, such as multiple synergism, multiple targets and the like. After the novel formulation disclosed by the invention is produced in an industrial scale, the production cost can be greatly reduced, the quality of the product can be improved, and the target performance and the controlled release performance of the medicines are stronger.
Owner:SUZHOU ZHIWEITANG BIOLOGICAL TECH +1

Novel wavelength division multiplexing demultiplexing optical assembly applied to high-speed parallel long-distance transmission

The invention relates to a novel wavelength division multiplexing demultiplexing optical assembly applied to high-speed parallel long-distance transmission. The output end of a laser group is sequentially provided with a lens group, an optical regulating plate group, a lower layer silicon lens array and a lower layer optical filter group, wherein the output end of the lower layer optical filter group is provided with a lower layer free space wavelength division multiplexing device, the output end of the lower layer free space wavelength division multiplexing device is provided with an optical isolator, the output end of the optical isolator is provided with a focusing lens, the output end of the focusing lens is connected with an input optical fiber, an output optical fiber is connected with a collimating lens, the output end of the collimating lens is connected with a prism, the output end of the prism is provided with an upper layer free space wavelength division multiplexing device, the output end of the upper layer free space wavelength division multiplexing device is provided with the upper layer optical filter group, the output end of the upper layer optical fiber group is provided with an upper layer silicon lens array, and the output end of the upper layer silicon lens array is provided with a detector group. The optical signal multiplexing and demultiplexing is realized by using the optical filter array structure.
Owner:INNOLIGHT TECHNOLOGY (SUZHOU) LTD

Rare-earth-containing ultrahigh strength collapse-resistant petroleum casing and production method thereof

A rare-earth-containing ultrahigh strength collapse-resistant petroleum casing and a production method thereof belong to the technical fields of ferrous metal smelting and metal press working. The petroleum casing comprises the following raw materials by weight percent: 90% of blast furnace molten iron and 10% of high quality steel scrap. The casing blank comprises the following chemical components by weight percent: 0.18-0.35% of C, 0.10-0.35% of Si, 0.55-1.10% of Mn, less than or equal to 0.025% of P, less than or equal to 0.020% of S, 0.60-1.10% of Cr, 0.15-0.50% of Mo, 0.01-0.03% of Al, 0.0005-0.0100% of RE ( RE is the mixed rare earth metals of Ce and La and the weight percents of Ce and La are 67% and 33% respectively), less than 0.10% of Cu, less than 0.10% of Ni and the balance of Fe and trace elements. The process flow of the production method is as follows: pretreating molten iron, smelting in a top-bottom blowing converter, refining in a ladle furnace (LF), performing VD vacuum treatment, performing continuous casting of round billets, performing flame cutting, heating the casing blanks, boring, performing continuous rolling, performing sizing and diameter reducing, cooling, performing saw cutting, performing heat treatment, straightening, performing flaw inspection and lathing screw threads. The mechanical properties of the petroleum casing are as follows: the strength is no less than 140000PSI, the residual stress is no more than 80MPa, the impact power is no less than 80J and the grain size is no less than the grade 8. The product is characterized in that the residual stress is low, the content of harmful elements is low, the impact toughness is high, the grains are small, and the product resists extrusion and is difficult to damage.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Integrated converting and utilizing co-production method for agricultural waste

The invention relates to an integrated utilizing technology for agricultural waste and in particular relates to an integrated converting and utilizing co-production method for agricultural waste. The integrated converting and utilizing co-production method comprises the following steps: 1. collecting and processing raw materials; 2. carrying out pyrolysis on the raw materials: generating biochar and high-temperature mixed gas; 3. converting the high-temperature mixed gas: converting the high-temperature mixed gas into wood tar, wood vinegar and fuel gas; 4. manufacturing fertilizers; 5. refining fuel oil: converting the wood tar into biofuel oil and wood pitch; 6. purifying the fuel gas: purifying the fuel gas into clean fuel gas; and 7. converting the fuel gas: respectively sending the biofuel gas into a gas generator, a gas supply pipe network and a heat boiler to covert the biofuel gas into heat energy and electricity energy. The agricultural waste can be converted by multiple levels and are combined to be utilized to obtain straw carbon, fuel gas, heat energy, electricity energy, fertilizers, fuel gas and the like. The use ratio of the agricultural waste reaches 100%. The problem that the agricultural waste is stacked and burnt disorderly can be solved, the pollution problem caused by using chemical fertilizers and pesticides for a long time can be solved, and the problem of utilizing energy, fertilizer and oil in rural areas also can be solved.
Owner:周仁福 +2

Intelligent exoskeleton carrying system for lower limb and control method thereof

The invention discloses an intelligent exoskeleton carrying system for a lower limb and a control method thereof. The system is provided with structures such as a detection control system, a girdle ring, a back frame connected with the girdle ring, a leg supporting device, and the like. The leg supporting device comprises a thigh connecting rod, a knee joint connecting piece, a crus connecting rod and a foot connecting piece which are movably connected in turn, wherein the knee joint connecting piece is provided with a knee joint torsion spring; two ends of the knee joint torsion spring are connected with the thigh connecting rod and the crus connecting rod respectively; the crus connecting rod is provided with a guy cable; the other end of the guy cable is connected with a guy cable driving device which is connected with the detection control system through a transmission line; the foot connecting piece is provided with a signal sensor which is connected with the detection control system through a signal acquisition line; and the top end of the thigh connecting rod is movably connected with a hip joint and connected with the girdle ring through the hip joint. The system can be coupled to human body, advance along with the human body, help the human body to load and carry and reduce energy consumption and fatigue feeling of the human body, and has the advantages of reasonable structure, complete function and strong practicability.
Owner:NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA

SOC-SOH joint on-line real-time estimation and on-line modification method

The invention discloses a SOC-SOH joint on-line real-time estimation and on-line modification method, the method comprises an SOC hardware pre-estimation module and a lithium battery equivalent-circuit parameter correction module, wherein the SOC hardware pre-estimation module utilizes a Hall current sensor to convert a heavy current signal into a low voltage signal, noise filtering is performed on the signal through a band-pass filter, the filtered signal is transmitted to an RC integrator to indirectly realize the integral for the current signal, and an integral signal acquired by an ADC is transmitted to an MCU chip to correct; the lithium battery equivalent-circuit parameter correction module comprises a square-wave pulse switch current source and a controllable electronic load, the square-wave pulse switch current source or the controllable electronic load is utilized to perform charge or discharge test on the lithium battery, the ADC is utilized to acquire terminal voltage of a battery pack, and according to the input response of charge or discharge curve, parameters of a battery equivalent model in a charge-discharge process are corrected. According to the invention, the method overcomes a circuit model parameter correction problem and realizes SOC-SOH real-time accurate on-line joint estimation.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Method for updating embedded mobile electronic map data base in real time

The invention relates to a method for updating an embedded mobile electronic map data base in real time, wherein map elements in the electronic map data base is firstly coded, and the IDs of the map elements are determined; the data of the relationship among the map elements is stored into the corresponding memory area of a map information storing device according to the IDs of the map elements; one item or a plurality of items of data of the relationship among the map elements can be extracted from the memory area of the map data, and the IDs of the map elements and the update state thereof are be obtained; data is acquired from a GPS/GPRS module and then is converted into geographic data compatible with the map data base, and whether the current travelling route belongs to certain map element is judged according to the coordinate figures of longitude and latitude; whether the map elements requires addition or modification is hinted according to the judged result; or by setting the travelling time threshold value, the map elements are automatically added when being more than the threshold value; finally, the updated data and the update state are stored into the map information memory area, thus electronic map data of a mobile navigation device can be stored and updated.
Owner:NOAH SOLUTION SUZHOU

Method for planting dryland crops by crashing soil

The invention discloses a method for planting dryland crops. A rotavator is utilized to deeply loosen and crash the soil in furrows so as to crash the loose soil in a cultivated layer and plough sole and make a portion of foreign soil in the plough sole rise up to be naturally mixed with the soil in the cultivated layer for forming furrows and ridges. The ridges are trapezoidal. Each furrow is 25to 30 cm in width and 80 to 100 cm in depth with loose soil distributed in a T shape, and each loose ridge can be 70 to 80 cm in width and 20 to 25 cm in height; or, each furrow is 50 cm in width and60 to 70 cm in depth, and each ridge is 90 cm in width and 20 cm in height. Crops can be planted right after soil is loosened by the rotavator and formed into ridges. Spacing and furrow depth can be determined according to the planting requirements of different crops. By using the method of the invention, soil in the whole cultivated layer is in a loose state, and foreign soil can be improved during deep rotary tillage, therefore, the water and fertilizer retaining ability and the permeability of the soil are enhanced. The invention has the advantages of helping crops root deeply and utilize water and fertilizer, relatively reducing diseases and weeds, and greatly increasing the yield of crops (usually over 20%, and a maximum of over 100%).
Owner:广西壮族自治区农业科学院经济作物研究所

System and method for correcting brightness and chromaticity of LED display screen point by point

The invention discloses a system and a method for correcting brightness and chromaticity of an LED display screen point by point. The method comprises the steps of: (1) connecting a camera, a correcting processor and an LED display screen control system; (2) putting the correcting processor and the camera in the position of 30-50 meters front of the LED display screen, wherein the camera is just opposite to the LED display screen; (3) adjusting the focal length of the camera to a position capable of clearly imaging; (4) setting parameters of a data acquisition module in the correcting processor, wherein the parameters include lamp point intervals, lamp point distribution mode and partition scheme of the LED display screen; (5) starting automatic correction for acquiring brightness and chromaticity data of the LED display screen and calculating and generating point-to-point brightness and chromaticity correcting coefficients; and (6) sending the point-to-point brightness and chromaticity correcting coefficients to an LED display screen control system, and controlling the LED display screen for displaying by the control system according to the received correcting coefficients. The invention ensures the consistence of the lamp points of the LED display screen by carrying out point-to-point brightness and chromaticity correction on the LED display screen, improves the uniformity of the LED display screen, and ensures that the LED display screen has better color reducibility. By carrying out the point-to-point brightness and chromaticity correction on the LED display screen, the service life of the LED display screen body is effectively prolonged.
Owner:XIAN NOVASTAR TECH
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