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981results about How to "Reduce the influence of human factors" patented technology

Forecast method and device for gas well productivity

The invention provides a forecast method and device for gas well productivity, comprising the steps of establishing dynamic changing relationship between gas well pseudopressure and shale gas output according to the linear flow production dynamic model of gas well under volume fracture, the dynamic changing relationship contains multiple basic parameters and unknown parameters; determining the major fracture semi length of the multiple unknown parameters by using the historical production data of gas well, and using the major fracture semi length to update the dynamic changing relationship; based on the dynamic changing relationship after update, obtaining parameter restraint equation via identification method of featured flow segment; and using the probability distribution model of the basic parameter and the parameter restraint equation to calculate the remaining unknown parameters and probability distribution model of productivity evaluation parameter together with the relevant credible region; using the probability distribution model and the relevant credible region to forecast the gas well productivity according to the dynamic changing relationship after update. The forecast method and device for gas well productivity can quantify the productivity forecast risk.
Owner:PETROCHINA CO LTD

Method and device for computer visual inspection classification of quality of fresh corn ears

The invention discloses a method and a device for computer visual inspection classification of the quality of fresh corn ears, which aim to solve the problem that an artificial classification method makes the accuracy and the reproducibility of classification generated adverse effects. The method comprises the following steps of: 1, under a certain illumination condition, acquiring images of the fresh corn ears passing through a place right below a camera by an image acquisition device, and transmitting the images to a main control computer; 2, according to the acquired images of the fresh corn ears, performing image analysis by the main control computer through intelligent analysis software through the steps of: partitioning backgrounds of the images of the fresh corn ears by adopting an iteration-replacement method, and then extracting characteristics as quality indexes of the fresh corn ears on the basis of the images obtained after the background partitioning of the images of the fresh corn ears; and 3, on the basis of the quality indexes, which are acquired through the image analysis, of the fresh corn ears, and according to a grading standard that the fresh corn ears are classified into three grades, performing grade estimation on the fresh corn ears by using a fuzzy neural network. The invention also provides a detection device for implementing the method.
Owner:JILIN UNIV

All-station instrument accurate measurement height method

The invention relates to a method for accurately measuring height with a total station, which is a new method for accurately measuring the height. The technical scheme provided in the invention is that the total station is arranged between a front viewpoint and a rear viewpoint and leveled, and a leveling distance measuring prism holder of two equally high centering rods is arranged on the front and rear viewpoints to implement measurement (see the figure). When implementing measurement, the crosshairs center of a total station telescope aims at the center of a rear viewpoint reflection prism to measure distance, record the height difference reading (VD) of the rear viewpoint, and read the height difference reading of the front viewpoint according to the method; the difference between the height difference readings of the front and rear viewpoints is the height difference of the front viewpoint relative to the rear viewpoint, and the sum between the height difference and the height of the rear viewpoint is the height of the front viewpoint. The invention can be widely used in common measurement and engineering measurement.
Owner:唐发志

Construction method of knowledge graph library for network fault analysis and application thereof

The invention discloses a construction method of a knowledge graph library for network fault analysis and application thereof, and relates to the technical field of network communication. The method comprises: using an intelligent method to carry out data acquisition on communication network data; constructing ontology libraries in different fields, constructing a global ontology library by adopting a data fusion and mapping technology according to the ontology libraries in different fields, and finally constructing a knowledge map library with consistent semantic relationships of various datasources through entity alignment, entity linking and knowledge calculation in sequence. The constructed knowledge graph library is used for retrieving possible reasons for causing the network fault,suggestions of a fault solution are provided for a user, rapid positioning and solution of the network fault are facilitated, the fault processing efficiency is improved, and meanwhile the influence of human factors is reduced.
Owner:WUHAN FIBERHOME TECHNICAL SERVICES CO LTD

Diagnosis and treatment scheme recommendation method, device and storage medium

The invention belongs to the technical field of artificial intelligence, and discloses a diagnosis and treatment scheme recommendation method. The method comprises the following steps: constructing amedical record database which comprises a first medical record sample and a label; constructing a similar medical record model and a recommendation model; training the similar medical record model andthe recommendation model according to data in the medical record database; obtaining a second medical record sample; inputting the second medical record sample into the trained similar medical recordmodel, outputting one or more similar medical records similar to the second medical record sample, inputting the obtained one or more similar medical records into the trained recommendation model, and outputting a diagnosis and treatment path corresponding to the second medical record sample. In this way, an integral diagnosis and treatment scheme is obtained by recommending the current illness state of the patient. The dependence on the medical expert level is reduced. The influence of human factors is reduced. The situations of delayed treatment and the like are avoided. The invention further discloses an electronic device and a computer readable storage medium.
Owner:PING AN TECH (SHENZHEN) CO LTD

Cantilever type automatic tin soldering device

The invention provides a cantilever type automatic tin soldering device. The device comprises an X-axis movement module, a Y-axis movement module, a rack and a product conveying assembly line, wherein the product conveying assembly line is installed on the rack, the X-axis movement module is installed on the rack through a supporting plate, and the Y-axis movement module is installed on the X-axis movement module. The device further comprises a Z-axis lifting module, an iron welding assembly, an iron welding assembly rotating device and a soldering tin supplying device, wherein the Z-axis lifting module is installed on the Y-axis movement module through a supporting frame, the iron welding assembly rotating device is installed on the supporting frame, the iron welding assembly is installed on the iron welding assembly rotating device, the solder wire supplying device is installed on the supporting frame, products to be subjected to tin soldering are fed into the product conveying assembly line and positioned, the iron welding assembly rotating device drives the iron welding assembly to rotate to an assigned angle, the soldering tin supplying device is used for conveying soldering tin to the iron welding assembly, and the X-axis movement module, the Y-axis movement module and the Z-axis lifting module are combined to drive the iron welding assembly to an assigned position for tin soldering.
Owner:东莞新友智能科技有限公司

Fan frequency conversion control system and method for air pressure dynamic balance of mine stope

The invention discloses a fan frequency conversion control system and method for air pressure dynamic balance of a mine stope. The fan frequency conversion control system comprises an alternating-current frequency converter console, a counter rotating axial flow fan, carbon monoxide sensors, air speed sensors, a differential pressure sensor, an intrinsically safe power supply, and an intrinsically safe junction box, wherein the alternating-current frequency converter console has two sets of alternating-current frequency converters; the frequency converters, the counter rotating axial flow fanand the intrinsically safe power supply are arranged in an inlet alley; the air speed sensor 1 is arranged in the air inlet alley; the differential pressure sensor and the air speed sensor 2 are arranged in an air return alley; and the two carbon monoxide sensors are arranged in an air return corner region. Data such as carbon monoxide content, air quantity, air pressure and the like is real-timemonitored, ventilation quantity of a mining working surface is automatically controlled, so that the mining working surface and the environment air pressure automatically achieve dynamic balance, thus the safety production of the mining working surface is achieved when a plurality layers of mine goafs are communicated with each other, the working efficiency, the precision degree and the safety degree are improved; the fan is driven by frequency conversion, so that the fan has energy-saving effect, broad adaptability, social benefits and economic benefits.
Owner:DATONG COAL MINE GRP +2

Processing method of tea-leaf like sparrow tongue

The invention relates to a processing method of tea-leaf like sparrow tongue, including main steps of water-removing, wire tidying and shaping, artificial assist shaping and deoiling. The tea leaves like sparrow tongue prepared by adopting the invention have flat, tall and graceful and smooth tea wires, like a sparrow tongue in appearance, are green You Run in colour, are dark green, clear and bright in soup colour, and possess of strong long-lasting fragrance, fresh, pure, daintily and unforgettable taste, light green, uniform and bright colour and complete leaves. Green ingredients in the tea leaves are fixed through water removing by a microwave water removing machine, and alcoholization sterilization is carried out on the tea leaves, thus achieving 'three greens' of product and safety and sanitation; a microwave dryer and a far infrared deoiling machine are used and intermediate temperature intermediate speed alcoholization fragrance improving technology is adopted to promote full inversion and polymerization of inclusion and fragrance ingredients, thus the tea leaves are fragrant in smell and rich and pure in taste. In addition, owing to addition of the microwave water removing machine, the microwave dryer and the far infrared deoiling machine, influence caused by man-induced factor is reduced in production of the tea leaves like sparrow tongue, continuous and clean processing is realized, and product quality and yield are ensured.
Owner:SICHUAN WENG TEA IND

Image type spinneret plate automatic detector

The invention provides an image type spinneret plate automatic detector which comprises a microscope, a CCD (Charge Coupled Device), a lighting system, an electrical control card and a personal computer, with a three-axis CNC (Computerized Numerical Control) moving worktable as a main body, wherein the three-axis worktable can be driven by the electrical control card to realize programmed control under the control of the computer. The personal computer is provided with an image acquisition card and receives a workpiece image captured by an optical imaging system which consists of the microscope and the CCD. The personal computer is internally provided with a spinneret plate automatic detection module, the spinneret plate automatic detection module can automatically plan a detection process aiming at a circular spinneret plate and a square spinneret plate and automatically control the three-axis moving worktable in the detection process, the detection positions of spinneret holes are moved to a vision center of the microscope one by one according to a generation sequence, an edge point set of the holes of the spinneret plate is automatically extracted, and whether the spinneret holes are qualified or not is judged with the image of the spinneret holes and the edge point set.
Owner:TZTEK TECH

Casting method of turbine housing

ActiveCN105458182AIncrease productivityEffective control of solidification sequenceFoundry mouldsFoundry coresSlagTurbine
The invention provides a casting method of a turbine housing. The casting method includes the following steps of firstly, core manufacturing, secondly, core assembly, thirdly, shell core baking, fourthly, smelting and refining, fifthly, mold preparation, sixthly, casting and seventhly cutting and cleaning. In the core manufacturing process, a riser sand core mold is arranged on a core shooting machine, the core shooting machine is powered on to heat the mold, a layer of precoated sand is cured on a cavity of the riser sand core mold, and a riser sand core is obtained after mold opening. In the core assembly process, the riser sand core and a turbine housing core are assembled and bonded. In the shell core baking process, shell cores painted with coatings are put into a baking kiln. In the smelting and refining process, raw materials are added to a melting and heat preservation furnace, and the melting and heat preservation furnace is powered on for melting. In the casting process, the shell cores are put in a mold, and tilt casting is conducted after mold combination. In the cutting and cleaning process, a casting is cut, the riser is cast, and burrs and fins of the casting are ground and cleaned. The metal tilt casting method of an aluminum alloy turbine housing body can solves the problems of shrinkage porosities and cavities and slag holes in a big flange face of the aluminum alloy turbine housing; open risers and blind risers are arranged, in combination with the riser sand core, an ideal temperature field is formed after the casting is cast, and solidification can be conducted from the casting to the risers in sequence.
Owner:XIAN AERO ENGINE CONTROLS

Automatic tube butt joint all-position TIG welding technology for coiled tubing

The invention provides an automatic tube butt joint all-position TIG welding technology for coiled tubing. The technology comprises the steps that the tube ends at the two sides of the coiled tubing are straightened, the tube ends of the two sides are subjected to V-shaped edge preparation or U-shaped edge preparation, the inner wall and the outer wall of a joint between the tube ends are cleaned, then the tube ends are assembled in a butt joint mode, a butt joint of the coiled tubing is subjected to non-wire-filling backing weld, filling weld and cosmetic weld through the automatic all-position TIG welding technology, when the butt joint is welded, the arc starting position of a welding gun is located at 1:30 or 2:00, and a separated section welding technology method is adopted for welding. By means of the welding technology, aiming at the tube butt joint welding of the coiled tubing, the traditional manual TIG welding is transferred into full-automatic TIG welding, the working efficiency is improved, the labor intensity is lowered, and the welding joint of the coiled tubing of great comprehensive performances is obtained.
Owner:XI'AN PETROLEUM UNIVERSITY

Preparing method for high-activity and high-stability composite catalyst for fuel cells

The invention provides a preparing method for a high-activity and high-stability composite catalyst for fuel cells and belongs to the technical field of fuel cells. The preparing method includes the steps that firstly, the surface of a Pt / C catalyst is wrapped by a layer of dopamine, and the dopamine is used for adsorbing a metal precursor through the good adsorbing performance on metal cations; secondly, silicon dioxide is used for packaging a polymer, the pyrolysis losses and heat treatment morphology conversion of a polymer precursor are controlled through morphology fixing and range limiting functions of the silicon dioxide, alloy nano particles and an N-doped carbon modified layer are further synthesized through high-temperature pyrolysis under the surface segregation effect of platinum and transition metal, and the low-platinum-nonmetal composite structure catalyst with the hollow alloy nano particles wrapped by N-doped carbon is constructed. According to the preparing method for the high-activity and high-stability composite catalyst for the fuel cells, migration agglomerating and growing in the sintering process of the catalyst are overcome, the size of the particles is effectively controlled, the catalyst has high high-activity surface area, operation is simple, industrial production is easy, and the catalyst can be widely applied to the fuel cells with proton exchange membranes serving as electrolytes.
Owner:重庆铈坦新材料技术研究院有限公司

High accuracy ball double autorotation grinding tray high-efficiency grinding device

A high precision ball double rotation abrasive disk high efficiency grinding unit includes an upper abrasive disk, a lower abrasive disk and an inner disk of the lower abrasive disk arranged on a frame. The cone abrasive surface at the outer side of the inner disk of the lower abrasive disk and the cone abrasive surface at the inner side of an outer disk of the lower abrasive disk form a V-shaped slot structure which together with the upper abrasive disk forms three machining contact points of a grinding ceramics ball. The drive axes of any two parts in the upper abrasive disk, the outer disk of the lower abrasive disk and the inner disk of the lower abrasive disk are selected to be connected with an electric motor. The parts not connected with a drive motor machine a loading device. The invention can realize the relative orientation adjustment of a rotating axis and a revolution axis for a ball rough and realizes uniform grinding / polishing of the ball rough surface. The invention has the advantages of high machining precision, machining efficiency and machining consistency, and simultaneously the drive and transmission devices have been reduced from 3 to 2. The invention has a simple structure and is a grinding unit with less requirements for machining and assembling precisions.
Owner:ZHEJIANG UNIV OF TECH

Concrete track slab prefabricating construction method of CRTS I type slab ballastless track

The invention relates to a concrete track slab prefabricating construction method of a CRTS I type slab ballastless track. The method comprises the following steps of: (1) weaving a steel reinforcement framework; (2) mounting the steel reinforcement framework in a steel mould, wherein the steel mould is internally sprayed with a separant and provided with a pre-embedded sleeve; (3) penetrating a PC (Prestressed Concrete) steel rod and mounting an anchor backing slab; (4) pre-tightening the PC steel rod; (5) mounting a hoisting nut, a spiral bar and a grounding terminal nut; (6) testing an insulation resistor; (7) pouring concrete and vibrating; (8) plastering the surface; (9) maintaining by using steam; (10) dismounting fixing bolts of a pre-embedded piece; (11) demoulding: cleaning the pre-embedded piece and a template, closing the mould, spraying the separant in the steel mould and mounting the pre-embedded sleeve for later use; (12) overturning and examining shape: turning over the CRTS I type slab ballastless track contrete track slab obtained in the step (11) and examining the shape and the appearance; (13) stretching by prestress; (14) sealing the anchor; (15) maintaining in a water pool; and (16) storing in a slab storage area.
Owner:CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +1

High-precise ball highly-efficient grinding and polishing processing method

The invention discloses a high-precise ball highly-efficient grinding and polishing processing method, in the processing devices for realizing the processing method, a V-shaped groove is formed by a pyramidal face abrasive surface of the outer of an inner plate of a lower grinding plate and a pyramidal face abrasive surface of the inside of an outer plate of the lower grinding plate, a loading pressure device acts on a ball billet through an upper grinding plate, three processing contact points of the grinding ball are formed by the V-shaped groove and the upper grinding plate, the upper grinding plate, the outer plate of the lower grinding plate and the inner plate of the lower grinding plate share a same rotary shaft; a rotating shafts of two plates among the upper grinding plate, the outer plate of the lower grinding plate and the inner plate of the lower grinding plate are driven by an electric motor; relative orientation changing is carried out on a ceramic ball through adjusting the velocity combination of the omega[B] and omega[C], so that the grinding trails are distributed on the face of the ball uniformly, thus grinding the surface of the ceramic ball uniformly. In the invention, the higher processing precision and processing efficiency can be realized, and the processing device has simple structure and low manufacturing cost.
Owner:ZHEJIANG UNIV OF TECH +1

Steel rail induction butt welding and heat treatment method

The invention discloses a steel rail induction butt welding and heat treatment method which includes the following steps: locating two steel rails through locating pieces which are installed on the lower portions of center shafts of an induction welding device in a connected mode, enabling jaws of two sets of clamp forceps to clamp the two steel rails respectively and carry out centring, enabling an opening-closing type induction heating coil to be moved to the joint of the two steel rails with the help of auxiliary oil cylinders and wrap the steel rails, enabling two sub-coils to be in contact with electrode structures, enabling a PLC to control the induction heating coil to heat the joint of the steel rails, when the temperature reaches the preset welding temperature of 1200 DEG C to 1430 DEG C, enabling upsetting oil cylinders to exert preset upsetting force to enable the end faces of the two steel rails to be tightly welded together, enabling a protrusion eliminating device to cut welding beading at the joint of the steel rails, enabling the induction heating coil to heat the weld joint of the steel rails again, after the temperature reaches the preset normalizing temperature of 830 DEG C to 950 DEG C, starting an air blasting system to cool the weld joint of the steel rails, and enabling the two sub-coils to be separated through the locating oil cylinders to enable the jaws of the two sets of clamp forceps to be opened to loosen the steel rails. The steel rail induction butt welding and heat treatment method is automatic in operation and high in efficiency.
Owner:CHANGZHOU RUITAI ENG MASCH CO LTD +1

Automatic optical module send-receive integrated test system

The invention discloses an automatic optical module send-receive integrated test system, comprising a test device and test software. The test device comprises a signal generating analysis meter, an optical source, an optical attenuator, a spectrometer, an optical power meter, an eye pattern analysis meter, a spectrum analyzer, a digital multimeter, a digital direct-current power supply, an optical module to be tested, a test mother board, a master control PC and joints among the devices; and the test software comprises a communication interface module, an instrument control module, a sending terminal test module, a receiving terminal test module, a digital diagnosis test module, a test process control module, a test specification download module and a data storage module. The automatic optical module send-receive integrated test system has the advantages of effectively improving efficiency, maintaining consistency and accuracy of the test process and reducing influence from manual operation in the test process.
Owner:DONGGUAN MENTECH OPTICAL & MAGNETIC CO LTD

Robot control software module partitioning method

The invention belongs to the field of robots and discloses a robot control software module partitioning method. First, a system is partitioned according to minimum functions to obtain an element sample set of minimum function particles. Then, relevance analysis is conducted on sample set elements from the perspectives of functions and structures, and elements with certain relevance are merged and clustered through a fuzzy tree graph clustering method. A partitioning scheme of subtrees on different levels is obtained by selecting different thresholds. Finally, a module partitioning scheme is evaluated comprehensively according to an information entropy idea, and optimal partitioning results are selected. By combining fuzzy clustering and level analysis, relevance among system elements is quantized, effects of human factors in module partitioning are reduced, and difficulty of a modularity process of robot control software is reduced. A mathematical evaluation model is provided through the information entropy idea, a reasonable and effective solving scheme for a robot software system module partitioning particle problem is provided, a developing period of module partitioning is shortened, and system developing cost is reduced.
Owner:BEIJING UNIV OF TECH

Method for managing phased array radar resource

The invention belongs to the technical field of a radar system, and discloses a method for managing phased array radar resource. The method comprises the following steps: collecting all radar events; extracting the original characteristic parameter of a radar event; evaluating the threat degree to a radar target; obtaining the dynamic priority of the radar event; and obtaining a set of a final event type by scheduling the radar event. The method disclosed by the invention is characterized in that the original characteristic parameter of the radar event is firstly extracted; then, the dynamic priority of the radar event is obtained; and various event sets are determined by scheduling the radar event. The obtained priority of the radar event is dynamically adaptively changed according to environment change, so that the priority of the radar event can better satisfy requirements on radar resource management under complex and varied environments so as to avoid the problem of unreasonable priority, the phenomenon that the radar resource management lacks of comprehensive judgment so as to cause strong anthropogenic factor influence can be reduced, and the resource use ratio of the radarsystem is effectively improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Vehicle-mounted POS-based highway alignment feature recognition and parameter calculation method

The invention discloses a vehicle-mounted POS-based highway alignment feature recognition and parameter calculation method and belongs to the technical field of a combined navigation positioning system and measurement. The method comprises acquiring vehicle position parameters, a velocity parameter and an attitude parameter, extracting heading angle information and a sampling point mileage, calculating outline curvature distribution of all the sections, dividing initial highway alignment into a linear part and a circular curve part, adjusting window sizes of the linear line and circular curve, calculating easement curve alignment parameters, and carrying out statistics on the change of the all-section curvature along with the mileage according to the linear alignment parameters, the circular curve alignment parameters and the easement curve alignment parameters to obtain the optimized alignment features and parameters of all the sections. The data acquisition method can provide the attitude information of the carrier, improve the efficiency and accuracy, reduce white noise-caused influence through MFM-smoothed heading angle information, effectively eliminates grain noise and solves the problem of huge calculated amount. The window automatic recognition method greatly reduces human factor-caused influence and reduces workload.
Owner:LIAONING TECHNICAL UNIVERSITY

Method for measuring flow and mud content of artificial rainfall runoff plot and control system

The invention discloses a method for measuring the flow and the mud content of an artificial rainfall runoff plot, which specifically comprises the following steps of: (1) selecting an appropriate slope in the wild as a test site, and preparing a water source and a power source; (2) surrounding the test site into a corresponding runoff plot by using baffle plates; (3) installing an artificial rainfall device and a surface slop runoff and mud content measurement instrument; and (4) adjusting rainfall intensity within a time period, and monitoring the parameters of flow and mud content of the runoff plot in the rainfall erosion process in real time. The invention also discloses a control system of the measurement method. By using the method, the flow and the mud content of the runoff plot can be recorded in real time. Moreover, the method has great mobility, the measurement effect closest to natural is achieved according to different surface conditions and site measurement, and a data basis is established to quickly acquire the soil erosion modulus of development and construction projects.
Owner:NORTHWEST A & F UNIV

User state single-classification model training method and device

The invention provides a user state single-classification model training method and device. The method includes the steps that at least two positive training samples belonging to the assigned user state class are obtained; each positive training sample comprises at least two items of user attribute information; the sample feature vector of each positive training sample is extracted according to all the user attribute information of each positive training sample; model parameters are estimated according to the sample feature vectors, and a probability density function model is generated according to the estimated model parameters; a user state single-classification model is generated, the user state single-classification model comprises the probability density function model for receiving the input feature vectors and working out function values and further comprises a classification judging model for working out classification results for representing whether the samples belong to the assigned user state class or not according to the obtained function values. The user state single-classification model training method and device are good in classification performance, small in influence of human factors and high in generalization ability.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Method for scheduling multi-target testing task based on decomposition and optimal solution following strategies

The invention discloses a method for scheduling multi-target testing task based on decomposition and optimal solution following strategies, which belongs to the field of scheduling parallel testing task. The method comprises the following steps: initializing parameter setting; decomposing a multi-target problem into a series of subproblems in an objective function space through the utilization of the method based on the decomposition, and updating and evolving the subproblems through exchanging informations with neighborhood areas; updating reference points and the neighborhood areas of every subproblem; adopting the optimal solution following strategy to allow a solution set to be improved as a whole; and obtaining a more optimal solution through repeated iterations, thereby obtaining a more optimal testing task sequence and a relevant testing scheme collection. The method solves the multi-target optimizing problem based on decomposition strategy, avoids the using of weighted sum method, reduces the effect of human factors, allows the quality of every generation of solution set to be improved as a whole with the adding of the optimal solution following strategy, and finally improves the efficiency of the method for scheduling the multi-target testing task.
Owner:BEIHANG UNIV

High-accuracy computer automatic marking method for subjective items based on domain ontology

The invention discloses a high-accuracy computer automatic marking method for subjective items based on domain ontology. The method comprises the following steps: firstly, building a domain ontology structure suitable for automatically marking the subjective items, and explaining a domain relation into a sentence in a natural language for describing a domain event; secondly, building a subjective item bank structure based on the domain ontology and item description logic, requesting the items to accord with the subjective item bank structure, and then marking answer sheets of examinees according to the following steps: (1) obtaining single words and part-of-speech tagging in the answer sheet of each examinee; (2) tagging an ontology element; (3) generating an answer sheet semanteme based on the domain relation; (4) calculating based on the similarity of the answer of the domain relation and the answer sheet semanteme; (5) calculating the score of the answer sheet of the subjective items of each examinee. According to the method, the semanteme analyzing and processing flows of the natural language in each examinee answer sheet are greatly simplified; the semanteme of answer domain knowledge is relatively fully expressed; the accuracy for automatically marking the subjective items is ensured.
Owner:南京乐酷网络科技有限公司

Equipment for testing compression load and displacement of scalling rope for cars

InactiveCN1687737ACorrect evaluation of closing forceProperly evaluate the effect of closing forceVehicle testingMaterial strength using tensile/compressive forcesTest fixtureStrain gauge
The invention is the automobile sealing strip compressing load and displacement testing equipment. The step-by-step motor drives the driving device through the computer control; the driving device composed of the gear assistant and the thread nut assistant drives the pressing head to move straight and to press on the sealing bar; the raster ruler is equipped on the cantilever of the pressing head to get the precise displacement of the head for the reading of the digital displayer; the force sensor is equipped on the pressing head; the sealing bar produces the resistance to misshape the force sensor and is reflected by the voltage changing of the electric bridge; the computer converses the voltage value into the compressing charge of the sealing bar through the sensor; the CCD testing system is equipped at one side of the sealing bar to test the space track of the points of the section of the sealing bar. The invention can realize the complicated response test of the sealing bar and ensure the testing precision.
Owner:SHANGHAI JIAO TONG UNIV

Online biding method and system

InactiveCN104166920AImprove bidding efficiencyReduce consumption costCommerceMultiple useResource consumption
The invention discloses an online bidding method and a system. The system comprises eight subsystems which are basic management system, a business standard management system, an information management system, a bidding process management system, a business support management system, a monitoring management system, a statistic analysis system, and a comprehensive inquiry system. The online bidding system overcomes the problems of low efficiency and high cost, increases the bidding efficiency, reduces the resource consumption, reduces the human factor, and play a positive role of establishing an incorrupt government and preventing corruption. The development mode configured in the invention realizes one-time development for multiple uses, which reduces the cost of system development, unites and standardizes the bidding process and effectively utilizes the related resources.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Thermal analysis and detection method and device for solidification grain size of magnesium alloy melt

The invention provides a thermal analysis and detection method and device for solidification grain size of a magnesium alloy melt and belongs to the fields of magnesium alloy melt treatment and casting solidification. The thermal analysis and detection method provided by the invention comprises that certain amounts of magnesium and magnesium alloy melt are poured into a sampling cup to be cooled, two thermocouples are adopted for respectively determining temperatures at the center and the edge of the melt in a solidification process in a magnesium alloy melt cooling process, a temperature acquisition device is used for acquiring temperature data, a computer program is used for recording variation of the temperatures at the center and the edge of the melt in the solidification process along with time, then dendritic crystal coherence point solid phase fractional number is determined by virtue of a thermal analysis and detection method, and the dendritic crystal coherence point solid phase fractional number is compared with a standard value to judge a refining or roughening effect on the grain size of a magnesium alloy by modification, grain refining or alloying element addition. According to the thermal analysis and detection method and device provided by the invention, recalescence is not required in a thermal analysis cooling curve of the solidification process, the thermal analysis and detection method and device provided by the invention are especially applicable to the magnesium alloy with lower solidification latent heat release, a modification effect can be represented within a wider solidification speed range, and solidification grain size can be predicted.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Road marker identification method and device and storage medium

The embodiment of the invention discloses a road marker identification method and device and a storage medium, and is applied to the technical field of information processing. The road marker identification device firstly constructs a first coordinate transformation matrix based on a two-dimensional image and three-dimensional point cloud data of a scene to be recognized, and calculates the three-dimensional point cloud data by adopting the first coordinate transformation matrix to obtain a depth image of the scene to be recognized; therefore, as long as the plane coordinate information of theroad marker is acquired from the two-dimensional image of the scene to be identified, the depth information of the corresponding position in the depth image can be determined according to the plane coordinate information of the road marker; and then spatial distribution information of the road marker is determined according to the first coordinate transformation matrix and the plane coordinate information and depth information of the road marker, thereby realizing identification of the road marker. The automatic mapping process can be realized only by means of the depth image information of the to-be-identified scene, and the road marker can be efficiently positioned.
Owner:TENCENT TECH (SHENZHEN) CO LTD
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