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98results about How to "Achieve a breakthrough" patented technology

Rapid rock cross-cut coal uncovering process and outburst prevention method

The invention relates to a rapid rock cross-cut coal uncovering process and an outburst prevention method. The rapid rock cross-cut coal uncovering process comprises the following steps: performing lane drill site construction advance borehole during rock drivage period, performing penetration drilling to measure the gas pressure of the coal seam and rapidly measuring the gas content, the mechanical property of the coal and other parameters by utilizing extraction drilling and sampling under the conditions that the rock gangway construction is not influenced and the coal seam to be uncovered is subjected to gas interception and extraction in advance, and realizing the outburst danger of the multi-index prediction coal seam; increasing the specific coal and rock mass curing measures in addition to the gas outburst prevention measures with the uncovering related regulations and standard requirements, so that the rock cross-cut is excavated by employing an integrated excavator after the rock cross-cut uncovering working face is subjected to complete outburst removal, and rapid rock cross-cut coal uncovering is realized. The whole set of coal uncovering process and the outburst prevention are used for the experimental coal mine 937m roadways, and 18 layers of coal are uncovered totally, so that the whole construction period is shortened by 1.63 years and is only 1/3 of the expected coal uncovering time. The method is easy and convenient to operate, safe in construction, short in overall coal uncovering time and good in outburst prevention effect and has wide practicability.
Owner:GUIZHOU INST OF COAL SCI

Apparatus and method for simultaneously detecting molecular weight distribution of water sample and organic nitrogen

The invention relates to an apparatus and a method for synchronously detecting molecular weight distribution of a water sample and organic nitrogen. The apparatus comprises an end injection valve, a chromatography column, a pressure reducing valve, an acid injection valve, an oxygen injection valve, an acid-oxygen reaction spiral tube, a CO2 remover, an UV digestion device, a second gas-water separation membrane, a buffer solution injection valve, a buffer solution reaction spiral tube, a cadmium column, a developer injection valve, a color reagent reaction spiral tube and an UV detector whichare sequentially connected through a pipeline, the end injection valve is used for receiving a mobile phase and the sample, and the second gas-water separation membrane is connected to a CO 2 conductivity detector, and the UV detector and the CO 2 conductivity detector are both connected to a computer for data processing. The apparatus realizes the synchronous detection of TOC concentration and DON concentration of the sample to be tested in different molecular weight distribution intervals, and provides a reliable and convenient detection means used in the water quality detection fields suchas water quality analysis of inlet water and outlet water and detection and control of nitrogen-containing disinfection by-products in water plants.
Owner:TONGJI UNIV

Acer palmatum Sangokaku tissue culture propagation process

The invention discloses an acer palmatum Sangokaku tissue culture propagation process which comprises the following steps: S1, explant sterilization; S2, inoculation and propagation, namely inoculating a sterilized stem section with a bud to a culture medium for growth, culturing for 2-3 weeks, and inducing the germination of an axillary bud; S3, enrichment subculture, namely shearing the germinated axillary bud, inoculating on a subculture medium, culturing for 3-5 weeks, and inducing the generation of caespitose buds; S4 rooting culture, namely cutting adventitious buds positioned on the caespitose buds, inoculating on a rooting culture medium, culturing for 2-3 weeks, and inducing the generation of a root. The acer palmatum Sangokaku tissue culture propagation process disclosed by the invention can be used for building a Sangokaku tissue culture propagation system, and realizing the breakthrough of the Sangokaku tissue culture propagation system, is low in production cost, high in propagation coefficient, short in propagation period, an effective way for the fast propagation of acer palmatum Sangokaku, and capable of preventing the virus accumulation, and achieving the easiness for domesticated seedling survival, and by using the process, the issue culture seedlings with consistent inheritable characters and the sterile acer palmatum Sangokaku seedlings can be relatively easily obtained.
Owner:SICHUAN COLORLINK CO LTD

Process for controlling thickness of glued rubber layer by using self-made rubber cover plate

The invention relates to a process for controlling a thickness of a glued rubber layer by using a self-made rubber cover plate. The process comprises the following steps: 1) a balance plate is manufactured; 2) a rubber film is paved on a prebonded cover; then, a reinforcing plate is placed on the rubber film for buckling the balance plate; and the balance plate extends out around stripping cloth and a porous isolation film; 3) the balance plate is connected and positioned with a reinforcing plate by a pin; and 4) the integer in the steps 2) and 3) is sealed with a vacuum bag, and is shifted into a hot pressing tank; the pressure is applied to the top of the balance plate; the curing is performed by heating; and a cover glued layer with uniform thickness is obtained after curing. The process uses the rubber balance plate for realizing secondary uniform distribution of the pressure of the hot pressing tank, weakens the influence on the thickness of the rubber layer by matching between molding surfaces of the reinforcing plate and the cover compared with direct acting of the pressure on the reinforcing plate, and obtains the rubber layer with uniform thickness. The operation of using the balance plate is simple; the positioning is accurate; the self-inspection is convenient; the process and the result both achieve visible and controllable effects; and the product quality and the working efficiency are improved.
Owner:AVIC SAC COMML AIRCRAFT

Preparation method of superabsorbent proton exchange membrane

The invention discloses a preparation method of a superabsorbent proton exchange membrane. The preparation method of the superabsorbent proton exchange membrane comprises the following steps: (1) stirring for mixing hollow mesoporous silica microspheres with fluorous perfluorinated sulfonic acid polymers according to a mass ratio of 1 to (9-99) to obtain a mixture; (2) adding the mixture obtained in the step (1) into an extruder for melting and extruding so as to form a membrane under the conditions that the temperature of the head of a membrane casting machine is 180-200 DEG C, the rotation speed of a screw rod is 20-35r/min and the linear speed of a roller press is 60-100cm/min; (3) putting the membrane obtained in the step (2) into 0.1-1wt% sodium hydroxide solution for soaking at the temperature of 60-80 DEG C for 4-12 hours so as to obtain a sodium perfluorinated sulfonic acid membrane; (4) putting the sodium perfluorinated sulfonic acid membrane obtained in the step (3) into 0.1-1wt% hydrochloric acid for soaking at the temperature of 20-30 DEG C for 1-6 hours, then washing the membrane with deionized water so as to obtain the superabsorbent proton exchange membrane. Compared with a membrane prepared by adopting a casting method using the solution, the superabsorbent proton exchange membrane prepared by adopting the method has higher conductivity and mechanical strength.
Owner:JUHUA GROUP TECH CENT

Stable overhanging type double-layer space intelligent cantilever structure system

The invention discloses a stable overhanging type double-layer space intelligent cantilever structure system, comprising lattice columns, space cantilever structures, a ring beam and a roof. The lattice columns are lattice columns with rhombic sections, the upper end of each lattice column of the bionic double-layer space cantilever structure imitating dragonfly wings. A movable, limiting and locking balance block is arranged at the end of a main vein of an upper layer space structure in each double-layer space cantilever structure. The ring beam comprises a cantilever upper ring beam, a cantilever lower ring beam and a roof ring beam which respectively serve as a double-layer space cantilever structure upper inner edge, a double-layer space cantilever structure lower inner edge and a roofouter edge, the double-layer space cantilever structures and the lattice columns are annularly distributed, the roof is arranged on the inner sides of the double-layer space cantilever structures, and the lattice columns provide support for the double-layer space cantilever structures and the roof through the ring beam. The cantilever structure is large in span, high in structural safety and stability, low in material consumption and light in dead weight, and breaks through the shape of the cantilever structure.
Owner:JIANGNAN UNIV

Production process of hot-rolled round steel 09CrCuSb with sulphuric acid dew point corrosion resistance

The invention discloses a production process of hot-rolled round steel 09CrCuSb with sulphuric acid dew point corrosion resistance. The round steel 09CrCuSb comprises the following chemical components in percentage by weight: 0.06 percent to 0.09 percent of C, 0.26 percent to 0.38 percent of Si, 0.48 percent to 0.60 percent of Mn, 0.90 percent to 1.00 percent of Cr, 0.30 percent to 0.40 percent of Cu, 0.07 percent to 0.09 percent of Sb, less than or equal to 0.015 percent of P, less than or equal to 0.008 percent of S, less than or equal to 0.15 percent of Ni, less than or equal to 0.0060 percent of N, less than or equal to 0.0002 percent of H, less than or equal to 0.0020 percent of O, and the balance of equivalent amount of Fe. Through scientific design of the chemical components, a passive film on the surface of steel is formed, and the corrosion resistant performance meets the using requirement; suitable and effective heating, steel rolling and cooling technologies are formulated, so that production of copper-containing steel cracks is effectively avoided, the industry breakthrough of the replacement of polished materials by corrosion-resistant steel 09CrCuSb AR(as rolled) hot-rolled materials is realized, and the material yield ratio is increased by more than 5 percent.
Owner:TIANJIN IRON & STEEL GRP

Pressure transfer eccentric water distribution blanking plug

The invention discloses a pressure transfer eccentric water distribution blanking plug. The blanking plug comprises a lower main body and an upper main body which is connected with the lower main body, wherein the upper main body is connected with the lower part of a fishing rod; the lower main body is provided with a pressure transfer hole I along the axial direction; the upper main body is provided with a pressure transfer hole II along the axial direction; the lower part of the fishing rod is provided with a central hole along the axial direction; the middle part of the fishing rod is provided with at least two seal rings between which a necking section is arranged; a pressure transfer hole III is formed in the necking section; the pressure transfer hole I, the pressure transfer hole II and the central hole are communicated with the pressure transfer hole III; a spring is sleeved outside the lower part of the fishing rod; the front end of the spring is provided with a pressure transfer sleeve; the front end of the pressure transfer sleeve is provided with a through hole III along the radial direction; the fishing rod is positioned in the pressure transfer sleeve; the front end of the fishing rod is connected with a pressure transfer joint in which a pressure transfer hole IV is formed; and the pressure transfer hole IV is communicated with the through hole III. Through the blanking plug, the aim of simultaneously performing underground layered flow testing and seal examination testing is fulfilled during normal water injection of an eccentric layered water injection well.
Owner:HENAN FUQIAO PETROLEUM EQUIP CO LTD

Corn seed product loaded with orderly-arranged seeds, and manufacturing method thereof

The invention discloses a corn seed product loaded with orderly-arranged seeds, and a manufacturing method of the corn seed product. The characteristic of the seed product capable of sowing accurately and directionally in a unit manner is as follows: corn seeds are bonded to be seed strips orderly arranged on seed ears longitudinally; the seed strips are regularly bonded on a tape or gummed paper; the tape or gummed paper are curled to form a helix shape and then are packaged in a sealing manner. The manufacturing method comprises the steps of selecting ears, removing two ends of the ears; using the shovel to ears to thresh in a strip manner; scanning the grains to be digital images; using a data processor to classify the grain digital images; spraying optical/magnetic identification mark to shaped, round and unqualified grains; using a recognizer to recognize marks in order to classify and select; making the seed strips fall down a strip die; coating a brittle shaping seed coating among the grains; drying seeds, bonding the tape, performing stripping and packaging. With the adoption of the product, germination rate is improved, important growth information of corn is recorded, the product is used with a directional sower, the evenness of corn growth is improved, the best group structure of crops is created and the corn yield is drastically improved.
Owner:北京图森园环保技术有限公司

Novel space transmission tooth-shaped chain system

The invention discloses a novel space transmission tooth-shaped chain system, which consists of a driving chain wheel, a tooth-shaped chain, an upper guide rail, a driven chain wheel and a lower guide rail, wherein the axial lines of the driving chain wheel and the driven chain wheel are mutually vertical in the space, the driving chain wheel and the driven chain wheel are not in the same plane and have the same structures, wheel teeth respectively adopt the involute profiles, and the engagement with the tooth-shaped chain is realized through the involute profiles of the chain wheels. The tooth-shaped chain is formed by connecting a plurality of work chain plates in series through hinging ball connecting elements. The novel space transmission tooth-shaped chain system adopts a connecting mode of a ball body rotating joint, so the chain plates can rotate in the space, the two chain wheels can transmit the movement and the force between two crossed shafts or staggered shafts in the space, the breakthrough of a tooth-shaped chain transmission mechanism from the plane movement to the space movement is realized, the novel space transmission tooth-shaped chain system can be used for occasions of low-speed heavy loads, occasions with hostile work environment and other occasions unsuitable for adopting space gear transmission.
Owner:JILIN UNIV

Leg of hydraulic-drive heavy-load six-legged robot

The invention discloses a leg of a hydraulic-drive heavy-load six-legged robot, and aims to solve the problems that an existing six-legged robot needs to adapt to terrain and increase the heavy load on the premise of satisfying bionic walking, and that the related research in China is in a blank stage at present. The leg of the hydraulic-drive heavy-load six-legged robot comprises a body connecting plate, a buttock connecting piece, a robot thigh, a robotic shin, a ground supporting piece, a root joint rotating shaft, a horizontal cylinder, a hip joint rotating shaft, a thigh cylinder, a kneejoint rotating shaft and a shin cylinder. The invention provides a completely novel leg structure model. Compared with other existing driving structures, the leg of the hydraulic-drive heavy-load six-legged robot has higher output power and smaller weight in the same space, and has the advantages of higher specific power, lighter weight and higher carrying capacity. Based on the optimized design of the structure of the leg of the hydraulic-drive heavy-load six-legged robot, the terrain adaptability of the six-legged robot is significantly improved. Based on the power matching of a hydraulic system, the leg of the hydraulic-drive heavy-load six-legged robot achieves a breakthrough of 500 kg bearing capacity, and has significant progressive significance.
Owner:SOUTHWEAT UNIV OF SCI & TECH +1

Artificial breeding method of pimiento male sterile restoring line

InactiveCN101228842AAchieve a breakthroughSolve the problem of three-line seed productionPlant genotype modificationMale infertilityHectare
The invention relates to an artificial transferring breeding method for a bell pepper restoring line, which consists of the following two steps: hybridizing a Korean species CHAMPION with a Shanghai Qie Men pimento 93-27-11, and selecting a restorable offspring for the continuous backcross with the Shanghai Qie Men pimento 93-27-11 for four generations, while in the process of backcross, picking the plants with the agronomic characters most close to the Shanghai Qie Men pimento 93-27-11 and the spring being able to breed plants, and eliminating the infertile plants; then carrying out the individual plant selfing segregation, which is to pick 2-3 individual plants with higher offspring restoring rate to carry out the individual plant selfing segregation for four generations through hybridizing the individual plant with the infertile plant, thus leading the self-segregation individual plant with 100 percent offspring to be the fertile plant bell pepper restoring line 93-27-11C. The method of the invention can save the breeding cost by 58 percent and can increase the seed yield by 41.7 percent. As no male infertility is removed, the germen is not affected, which results in great improvement of seed output and stability. The purity of seed production is increased to 100 percent, while the income of every hectare is increased by 2700 Yuan.
Owner:HEFEI JIANGHUAI HORTICULTURE RES INST

Method for detecting and analyzing evolution process of structure of surrounding rock in area of deep tunnel of coal mine

The invention discloses a method for detecting and analyzing the evolution process of the structure of surrounding rock in the area of a deep tunnel of a coal mine. The method comprises the following steps: (1) distributing testing drill holes in a to-be-detected area of the surrounding rock of the deep tunnel of the coal mine, and installing and propelling digital drill hole picture taking probes in the drill holes in sequence to obtain the principle on evolution of the propagation characteristic of sound waves along with time in the drill holes of the surrounding rock, wherein the drill holes are arranged in parallel, and have the same depth as the to-be-detected area of the surrounding rock; (2) obtaining the spacial distribution of the volumetric joint count (Jv) of the surrounding rock in the area of the deep tunnel according to single hole structure surface information; (3) obtaining the spacial distribution of the integrity index (Kv) of the surrounding rock in the area of the deep tunnel and the evolution principle of the surrounding rock by taking the propagation of sound waves of adjacent drill holes in the area of the deep tunnel as a boundary condition; and (4) comparing the integrity index, the volumetric joint count (Jv), with the integrity index (Kv) of the surrounding rock comprehensively to obtain the evolution process of the structure of the surrounding rock in the area of the deep tunnel of the coal mine. The method disclosed by the invention is practical, is easy and convenient to operate and is used for obtaining the integrity and evolution principle of the structure of the surrounding rock before and after excavating the tunnel of the coal mine so as to provide scientific basis for the stable control and security evaluation of the surrounding rock of the deep tunnel of the coal mine.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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