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937results about How to "Solve difficulty" patented technology

Decoding method based on deep neural network translation model

The invention relates to the field of the language processing, and provides a decoding method based on a deep neural network translation model. The problems of high model training complexity, large training difficulty and slow decoding speed in a machine translation model are solved. The specific implementation way of the method comprises the following steps: performing word segmentation processing on the to-be-translated sentence to obtain source language vocabulary; step two, performing word alignment on the linguistic data in a preset translation model glossary by using an automatic alignment tool so as to obtain a target language word aligned to the source language vocabulary; and step three, determining a target-side dynamic glossary of the to-be-translated sentence based on the target language word obtained in the step two, and using the sentence decoded by using a column searching method as the output of the translation model according to the pre-constructed translation model, wherein the translation model is the deep neural network based on the threshold residual mechanism and the parallel attention mechanism. Through the decoding method disclosed by the invention, the model translation quality is improved, and the mode coding speed is improved.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI +1

Bulb steel production technology

InactiveCN101190442ASmall fluctuations in section sizeSmall fluctuations in the size of the arcRollsMetal rolling arrangementsIron productionCompression ratio
The invention discloses a ball flat iron production technique, comprising steps of billet, heating, symmetrical rolling, straightening and dissection. The invention is characterized in that the dissection process is carried out after the processes of symmetric rolling and straightening; hole shapes in all the passages of a rolling mill are constituted by two ball flat iron hole shapes which are symmetrically identical. By adopting the technique of symmetric rolling, the invention solves the problems that existing large and medium rolling mills can not produce small ball flat irons with symmetrical rolling and dissection technology. The invention has the advantages of the small size fluctuation of profiles when producing, particularly the small size fluctuation of width, thickness, ball filling and the lower arc of the ball flat iron, rollers subject to uniform forces, easy control in rolling process, greatly reducing the scraping, the rolling mark and the waves of the product by 50% to 70%, improving the quality of the product, enlarging the types of rolled products, leading large profiled bar rolling mill to produce small ball flat iron, enlarging the profile of the billet, large corresponding compression ratio, improving the comprehensive performance of the products, etc.
Owner:ANGANG STEEL CO LTD

Robot forklift with simple and convenient positioning function

ActiveCN105752888ASolve the problem of not being able to walk arbitrarily on the groundSolve the costLifting devicesPosition/course control in two dimensionsLinear motionDrive wheel
The invention relates to a robot forklift with a simple and convenient positioning function. The robot forklift is characterized by comprising a forklift body chassis, a driving wheel, follow-up wheels, forklift body stand columns, a forklift body control box, a positioning control device, a platform lifting device and a horizontal goods storing and taking device, wherein the driving wheel and the follow-up wheels are mounted under the forklift body chassis; the forklift body stand columns are mounted at side ends of the forklift body chassis and perpendicular to the forklift body chassis; the forklift body control box is mounted on a forklift body; the positioning control device comprises a positioning device for goods pallets on goods shelves, and a positioning device for discretionary object points on the ground. According to the robot forklift disclosed by the invention, the horizontal goods storing and taking device is mounted in lifting sliding chutes, and when the direction of the linear motion in a front-rear direction of the robot forklift is maintained to be constant, the horizontal movement of wheels is replaced by the horizontal movement of sliding plates, and the longitudinal positioning of the goods shelves is realized, so that not only is the horizontal deviation correcting problem solved, but also the longitudinal deviation correcting problem is also solved, and the extraction speed of goods is effectively increased.
Owner:普智联科(深圳)有限公司

Five-coordinate plunge milling machining method of closed type bladed disc

The invention discloses a five-coordinate plunge milling machining method of a closed type integral bladed disc, comprising the steps of: dividing machining areas of a passage of the machined closed type bladed disc; respectively generating passage offset surfaces in an air edge machining area and an air-exhaust edge machining area; solving a boundary line of the passage; generating straight-grain enveloping surfaces of the passage offset surfaces of the closed type integral bladed disc; respectively obtaining plunge milling cutter spacing orbits of the air edge machining area and the air-exhaust edge machining area so as to obtain the plunge milling cutter spacing orbits of the passage of the closed type integral bladed disc; and finally conducting plunge milling on the closed type integral bladed disc on a five-coordinate numerical control machine according to the obtained plunge milling cutter spacing orbits. The invention prevents the cutter interference when the closed type integral bladed disc is machined, solves the technical problems of great programming difficulty, multiple constraint conditions, the complex solving process of the cutter spacing orbits, and the like in the machining process and effectively realizes the five-coordinate plunge milling machining of the closed type integral bladed disc.

Chip bonding device

The invention relates to a chip bonding device comprising a first work platform, a second work platform, a visual sense detection and feedback module, a chip transmission module and a bonding module. The visual sense detection and feedback module is used for compensating position and angle deviation of chips during chip transmission processes; the chip transmission module comprises a first chip grabbing unit and a second chip grabbing unit; the first chip grabbing unit is used for picking up the chips from the first work platform according to feedback provided via a chip detection and feedback module, and the chips are conveyed to the second chip grabbing unit; the bonding module comprises a bonding head, a bonding head motion mechanism and a bonding head attracting rod; the bonding head motion mechanism and the bonding head attracting rod are used for picking up the chips from the second chip grabbing unit according to feedback provided via the visual sense detection and feedback module, then the chips are conveyed to a bonding position, and the bonding head is used for chip bonding operation. According to the chip bonding device, chip bonding efficiency and precision are improved via chip position information detection and feedback provided by the visual sense detection and feedback module.
Owner:CETC BEIJING ELECTRONICS EQUIP

Abrupt slope bare rock drilling platform and technology in huge reservoir

The invention relates to bridge engineering, in particular to an abrupt slope bare rock drilling platform and a technology in a huge reservoir and used for bridge construction. The invention is characterized in that an abrupt slope bare rock drilling device in a huge reservoir comprises steel pipe piles, a cross beam, a longitudinal beam, cross struts and a steel casing, wherein the steel pipe piles are arranged on the riverbed in a longitudinal and transverse spacing manner; the longitudinal and transverse spaces of the steel pipe piles are connected through a braced plane frame, the longitudinal cross strut and the transverse cross strut; the space surrounded by the four steel pipe piles is internally provided with the steel casing the height direction of which is parallel to the steel pipe piles; and the diameter of the pile foundation steel casing is 280cm, and the steel casing is made by rolling an A3 steel plate with the thickness of 14mm. The construction technology of the platform has 14 steps, and the invention provides the abrupt slope bare rock drilling platform and the technology in the huge reservoir, which can ensure the platform safety, easily heighten or lower the steel pipe piles, ensure the accurate in-position of a drilling machine and the pile foundation verticality, and is convenient to controlling the axial plane position of the pile foundation.
Owner:中交二公局第六工程有限公司

Large-structure sublevel drilling stage ore removal mining method with delayed filling

The invention relates to a large-structure sublevel drilling stage ore removal mining method with delayed filling. The mining method comprises stoping in stopes and bottom structure recovery which are carried out synchronously in a crossed manner, and comprises the following steps: step 1, stoping in odd-numbered stopes, wherein the stoping manner is sublevel drilling stage ore removal, and mined out space I is not filled immediately; step 2, stoping in 1/2 bottom structures I corresponding to the odd-numbered stopes, and filling ore rooms and the mined out space I, corresponding to the 1/2 bottom structures I, of the ore rooms after stoping is finished; step 3, stoping in even-numbered stopes, wherein mined out space II is not filled immediately; step 4, stoping in 1/2 bottom structures II corresponding to ore pillars, and filling the ore pillars and the mined out space II, corresponding to the 1/2 bottom structures II, of the ore pillars after stoping is finished. The mining method has the advantages that the mining-cutting work amount is reduced greatly; the production capacity of a single stope is high; the efficiency is high; workers' labor intensity is low; production, dispatching and management are simple. Moreover, stoping of the main ore in a stope and recovery of ore in the bottom structure of the stope are realized synchronously in a crossed manner, and the stoping operation is safe, so that the resource recovery rate is high.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST +1

Method for culturing adventitious roots of oplopanax elatus Nakai by utilizing bioreactor

The invention discloses a method for culturing adventitious roots of oplopanax elatus Nakai by utilizing a bioreactor. The method comprises the steps of: injecting 4L of an MS culture medium in the 5L airlift bioreactor and adding 3-4mg/L of IBA (Iso Butyl Alcohol) and 40-50g/L of white sugar, wherein the pH is 5.8; injecting air at 75-100mL/min; and inoculating 20-40g of adventitious root explants, and culturing for 40-50 days in dark, so as to obtain a large number of adventitious roots of the oplopanax elatus Nakai. The total phenols content in each obtained adventitious root of the oplopanax elatus Nakai is higher than that in the root and the stem of cultivated oplopanax elatus Nakai with two or five growth years and the polysaccharide content in the adventitious roots is approximate to that in the root of the cultivated oplopanax elatus Nakai with the two growth years. The method is capable of accelerating the multiplication rate, so as to obtain a large number of explants within a short period. The bioreactor is used for cultivation, the cost of the culture medium can be reduced, the labor intensity and the production cost can be lowered, the problems that currently the wild oplopanax elatus Nakai plants are endangered and the artificial cultivation difficulty o the oplopanax elatus Nakai plants is high are solved and a new approach is provided for the commercialized production.
Owner:YANBIAN UNIV

Motorcade autonomous car following system, portable device and method

The invention provides a motorcade autonomous car following system, a portable device and a method; the system comprises the following parts: a GPS module in a data acquisition unit is used for gathering vehicle positioning information, and an inertial navigation module in the data acquisition unit is used for gathering vehicle acceleration information and angular velocity information; a fusion positioning module in a data processing unit is used for fusing the GPS information and inertial navigation information in real time, thus obtaining a self-vehicle absolute pose; a car following controlcalculation module is used for planning an absolute route according to the self-vehicle absolute pose information, front vehicle absolute pose information and a head vehicle history route, updating an absolute route table, and calculating to obtain a vehicle target velocity and direction turning angle for vehicle control. The system and method can realize combined positioning via the GPS module and the INS module, are high in positioning precision, high in data refreshing frequency, and cannot be affected by illumination and weather environment factors, thus effectively improving the autonomous car following system precision and reliability. The device is portable and easy to construct, and low in cost.
Owner:SHANGHAI JIAO TONG UNIV +1

Connecting method for sintering/welding titanium-steel dissimilar metal

The invention discloses a connecting method for sintering/welding titanium-steel dissimilar metal. The differences of physical properties of the titanium and the steel which are dissimilar metal are large, and the titanium and the steel are hard to connect through conventional methods. According to the connecting method, firstly, the titanium or titanium alloy, V-Cu gradient alloy powder C1, C2 and C3 and stainless steel are placed in a die one by one to be pressed in advance, and secondly, the die is placed in a sintering device to be sintered in a spark plasma mode, wherein the V-Cu gradient alloy powder C1, C2 and C3 are composed of mixed powder which is formed by mixing a plurality of kinds of metal powder according to different proportions, and the expansion factor gradient of the V-Cu gradient alloy powder C1, the expansion factor gradient of the V-Cu gradient alloy powder C2 and the expansion factor gradient of the V-Cu gradient alloy powder C3 are matched with one another. The titanium or the titanium alloy and the stainless steel are directly connected and formed at a time in a sintering mode, the method of spark plasma sintering is particularly suitable for sintering molding of V-Cu gradient connectors of the titanium and the stainless steel, and a titanium-steel dissimilar metal sintering/welding connector can have a high mechanical property.
Owner:NANJING UNIV OF SCI & TECH

Method for preparing metal through continuous reduction in molten salt medium

The present invention relates to a metal material preparation method, particularly to a method for preparing a metal through continuous reduction in a molten salt medium. According to the method, a molten alkali metal and alkaline earth metal mixing halide MaY-MeY2 is adopted as the flux of a molten salt medium, an alkaline earth metal oxide MeO/alkaline metal halide MaY mixture capable of being dissolving in the flux of the molten salt medium is used to replace an alkaline metal so as to be adopted as a reduction agent, the specifically-selected MeO/MaY mixture is added to the molten MaY-MeY2 flux to form a MeO-MaY-MeY2 molten salt, the molten salt medium is subjected to electrolysis to decompose the MeO dissolved in the medium so as to finally obtain the Ma-MaY-MeY2 molten salt medium, an oxide MO is added to the formed Ma-MaY-MeY2 molten salt medium under the support of the electrolysis process performing under the conditions, and the alkali metal Ma instantly performs thermal reduction on the added oxide MO so as to prepare the metal M. According to the present invention, the disadvantages of complex operation and danger of the direct alkali metal reduction agent adding in the traditional thermal reduction are overcome; the excessive use of the alkali metal reduction agent is solved, and the continuous production can be achieved; and the cost is low, and the energy consumption is low.
Owner:AUYONG ADVANCED MATERIALS TECH SHANGHAI CO LTD

Method for synergetic extraction of coal bed gas in caving type gob area and lower coal bed

The invention discloses a method for synergetic extraction of coal bed gas in a caving type gob area and a lower coal bed. The method comprises the steps that firstly, a mine is explored, a horizontal well is constructed from the ground to a base plate of the gob area, carbon dioxide is compressed into the well for cleaning, and coal bed gas extraction is carried out; when the extraction amount of coal bed gas in unit time drops to 20%-40% of Qi, running and stopping circulate, the extraction pressure is reduced, and the re-extraction process is carried out again; when the extraction amount drops to be below 20% of Qi, carbon dioxide is injected for replacement, and extraction is carried out again; when the extraction amount drops to be below 20% of Q1 again, the horizontal well and a coal and rock strata of the lower coal bed are subjected to fracture, and coal bed gas discharge and extraction are carried out; when the extraction amount drops to be below 20% of Q2, supercritical carbon dioxide replacement is carried out; and when the extraction amount drops to 10% of Q2 through extraction, extraction is stopped. By means of the method, synergetic extraction of coal bed gas in the carving type gob area and coal bed gas near a low coal seam is achieved, cost is reduced, and the coal bed gas resource is extracted to the greatest extent.
Owner:TAIYUAN UNIV OF TECH

Workpiece grinding machine of numerical-control electric spark machine tool

The invention relates to a workpiece grinding machine of a numerical-control electric spark machine tool. The workpiece grinding machine of the numerical-control electric spark machine tool comprisesa base plate, a fixing device, an inner wall grinding device and an outer wall grinding device. The fixing device and the inner wall grinding device are sequentially installed on the base plate from left to right. The outer wall grinding device is installed on the back side of the base plate. The inner wall grinding device comprises a fixing plate, a rotating motor, a rotating column, sliding blocks, limiting frames, telescopic rods, springs, adjusting air cylinders and first steel wire brushes. The outer wall polishing device comprises a lifting frame, a rotating motor, a rotating column, a cam, connection sliding blocks, connection frames, guide rails and second steel wire brushes. The workpiece grinding machine of the numerical-control electric spark machine tool can solve the problemsthat in an existing annular workpiece grinding process, the labor cost is high, the labor intensity is high, the work efficiency is low, the grinding difficulty is large, and the adjustability is poor; the automatic grinding function on the annular workpiece can be achieved; and the workpiece grinding machine of the numerical-control electric spark machine tool has the advantages of being low in labor cost, low in labor intensity, high in work efficiency, small in polishing difficulty, good in adjustability and the like.
Owner:浙江芊荷科技有限公司 +1

ATM banknote sorting device and ATM banknote sorting system capable of accurately controlling banknote sorting process

InactiveCN105654612AAvoid mishandling of banknotesAvoid split notesCoin/currency accepting devicesEngineeringMechanical engineering
The invention discloses an ATM banknote sorting device and an ATM banknote sorting system capable of accurately controlling the banknote sorting process. The banknote sorting device comprises a banknote sorting wheel 1, an arc-shaped rubber part 2, a banknote pushing plate 7, a limiting baffle plate 3, a limiting sensor 4, a fan-shaped baffle plate 5 and a position detection sensor 6. The banknote sorting wheel 1 is used for supplying power to the banknote separating process and also serves as an acceptance member for extruding paper banknotes. The arc-shaped rubber part 2 is embedded at the outer edge of the banknote sorting wheel 1. The banknote pushing plate 7 is used for extruding paper banknotes to make the paper banknotes in the extruded state. In this way, the banknote pushing plate 7 is a pressure application member for extruding paper banknotes. The limiting baffle plate 3 is connected with the banknote sorting wheel 1. The limiting sensor 4 is used for detecting whether the banknote sorting wheel 1 is pressed just in place or not. The fan-shaped baffle plate 5 is in linkage with the banknote sorting wheel 1. The fan-shaped baffle plate 5 is capable of radially rotating around the fan-shaped center thereof. The position detection sensor 6 is used for detecting the location of the arc-shaped rubber part 2. The ATM banknote sorting device and the ATM banknote sorting system capable of accurately controlling the banknote sorting process are simple in structure, reliable in banknote sorting performance, good in banknote sorting quality and low in implementation cost, which cannot be realized in the prior art.
Owner:NDT SCI & TECH
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