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102results about How to "Consistent output" patented technology

Multiple displacement amplification

Disclosed are compositions and a method for amplification of nucleic acid sequences of interest. The disclosed method generally involves replication of a target sequence such that, during replication, the replicated strands are displaced from the target sequence by strand displacement replication of another replicated strand. In one form of the disclosed method, the target sample is not subjected to denaturing conditions. It was discovered that the target nucleic acids, genomic DNA, for example, need not be denatured for efficient multiple displacement amplification. The primers used can be hexamer primers. The primers can also each contain at least one modified nucleotide such that the primers are nuclease resistant. The primers can also each contain at least one modified nucleotide such that the melting temperature of the primer is altered relative to a primer of the same sequence without the modified nucleotide(s). The DNA polymerase can be φ29 DNA polymerase.
Owner:QIAGEN GMBH

Method for predicting evolvement and performances of structure of strip steels in hot rolled proces

A method for predicting the structure variation and properties of band steel in hot rolling procedure features that its system is composed of the preprocessing module for reading the technological parameters needed by hot rolling from database, the heating module, rolling module, cooling phase-change module and mechanical performance module for simulating the hot rolling procedure and predicting the final structure performance, and the post-precessing module for displaying the final result.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Rolling circle replication reporter systems

Disclosed are compositions and a method for of amplifying nucleic acid sequences useful for detecting the presence of molecules of interest. The method is useful for detecting specific nucleic acids in a sample with high specificity and sensitivity. The method also has an inherently low level of background signal. A preferred form of the method consists of a DNA ligation operation, an amplification operation, and a detection operation. The DNA ligation operation circularizes a specially designed nucleic acid probe molecule. This operation is dependent on hybridization of the probe to a target sequence and forms circular probe molecules in proportion to the amount of target sequence present in a sample. The amplification operation is rolling circle replication of the circularized probe. A single round of amplification using rolling circle replication results in a large amplification of the circularized probe sequences. Following rolling circle replication, the amplified probe sequences are detected and quantified using any of the conventional detection systems for nucleic acids such as detection of fluorescent labels, enzyme-linked detection systems, antibody-mediated label detection, and detection of radioactive labels. Because, the amplified product is directly proportional to the amount of target sequence present in a sample, quantitative measurements reliably represent the amount of a target sequence in a sample. Major advantages of this method are that the ligation step can be manipulated to obtain allelic discrimination, the DNA replication step is isothermal, and signals are strictly quantitative because the amplification reaction is linear and is catalyzed by a highly processive enzyme. In multiplex assays, the primer oligonucleotide used for the DNA polymerase reaction can be the same for all probes. Also described are modes of the method in which additional amplification is obtained using a cascade of strand displacement reactions.
Owner:YALE UNIV

Advertising system and method using in-app advertisement module

The present invention relates to an advertising system and method using an in-App advertisement module, which is capable of displaying an advertisement on a lock screen through an advertisement module which is inserted in one or more application and is installed in parallel to the applications and distributing saved rewards to the applications according to a user input through the lock screen on which the advertisement is displayed, thereby allowing the saved rewards to be used as points.
Owner:BUZZVIL CO LTD

Light source strobe control method in time delayed and integration (TDI) charge couple device (CCD) uniform imaging under the condition of non-uniform motion

The invention discloses a light source strobe control method in time delayed and integration (TDI) charge couple device (CCD) uniform imaging under the condition of non-uniform motion, and belongs to the field of control. Light source strobe control equipment comprises a test object which moves non-uniformly and a TDI CCD camera. The light source strobe control method includes the steps: a light-emitting diode (LED) light source in conjunction with TDI CCD exposure is disposed, a strobe frequency converter for converting moving speed signals into strobe frequency signals is disposed, and the strobe frequency is used for controlling starting and closing frequency of the LED light source and controlling synchronous exposure of the TDI CCD. Moving speed of the test object is detected, synchronous control of the strobe cycle of the light source is realized according to the moving speed of the test object, total exposure time of the TDI CCD camera in the sweeping cycle is regulated, and thus image of uniform gray gradation of the test object which moves non-uniformly is output.
Owner:BAOSHAN IRON & STEEL CO LTD

Automatic thread feeding system of sewing machine and control method thereof

The invention discloses an automatic thread feeding system of a sewing machine. The automatic thread feeding system comprises an upper shaft, a lower shaft, a control device, a cloth feeding system and a sewing thread tension adjusting device. One end of the upper shaft is connected with a sewing machine driving mechanism, and the other end of the upper shaft is connected with a thread take-up lever and a sewing needle; one end of the lower shaft is connected with the upper shaft through a transmission shaft, and a rotating shuttle is arranged at the other end of the lower shaft and wound with a sewing bottom thread. The automatic thread feeding system is characterized in that the sewing thread tension adjusting device comprises a rotating body and a stepping motor, the rotating body is connected with an output end of the stepping motor, the sewing machine driving mechanism and a control end of the stepping motor are connected with the control device, the rotating body is wound with a sewing upper thread, and the sewing upper thread penetrates through the thread take-up lever and is connected with the sewing needle. The control method includes the steps of parameter setting, sewing needle sewing, rotating body taking up, cloth moving and rotating body paying off. The sewn stitches are in order, and sewing quality is high.
Owner:SUZHOU HAOJIE MACHINERY ELECTRONICS EQUIP

Electrocardiogram data classification method and system combining feature extraction and inception network

The invention discloses an electrocardiogram data classification method and system combining feature extraction and an inception network. The method comprises the steps that 1, normalizing filtered electrocardiogram data; step 2, segmenting the processed electrocardiogram data obtained in the step 1; 3, performing feature extraction on the plurality of heartbeat segments obtained in the step 2; step 4, constructing an inception network suitable for the electrocardiogram data; 5, obtaining relative wavelet energy and wavelet energy on the whole electrocardiogram data and absolute average deviation of wavelet energy and heartbeat interval time of all heartbeat segments by calculation; and step 6, taking the integrated features as input of a pre-constructed multi-layer perceptron, training the multi-layer perceptron to a preset convergence condition, and obtaining a final classification model. According to the method, the model not only extracts very valuable expert features, but also considers deep features of the electrocardiogram data, so that the purpose of enhancing the robustness and classification capability of the model can be achieved.
Owner:XI AN JIAOTONG UNIV

Thick sun sensor for sun azimuth angle measurement

ActiveCN103411578AWith anti stray light interferenceResistant to space radiationAngle measurementElectricityInterference resistance
The invention relates to a thick sun sensor for sun azimuth angle measurement, which comprises a main structure, a base, a battery pack, a standard mirror, an electric connector and an earthing assembly, wherein the main structure is mounted on the base; the main structure is rectangular pyramid shaped; mounting grooves are formed in both the four side surfaces and the top surface of the rectangular pyramid; the mounting grooves are used for mounting the battery pack; a ring band surface is arranged on the periphery of the four side surfaces of the rectangular pyramid; a light blocking ring is arranged on the outer side of the ring band surface; the light blocking ring adopts a thin-walled ring band structure; the height of the light blocking ring is not larger than the height the undermost position of a sensitive surface of the battery pack; the standard mirror, the electric connector and the earthing assembly are mounted on the base. The thick sun sensor has the advantages of simple structure, small size, light weight, large measurement viewing field (2 pi solid angle), stray light interference resistance and space irradiation resistance, and has a main backup measurement mode.
Owner:BEIJING INST OF CONTROL ENG

Combustion gas burner enabling multi-stage control

A combustion gas burner enabling a multi-stage control including a main casing on the bottom surface of which an air blower is mounted so that air can be supplied from the air blower through an air inlet formed in the lower portion of the main casing, a tube-shaped burner mounted on the main casing in which fire hole units each having a number of fire holes formed at a predetermined distance from one another are disposed on the upper end surface of the main casing in order to burn gas and air which are mixed and supplied to the tube-shaped burner, a plate-shaped burner which is detachably disposed between the fire hole units formed on the upper end surface of the tube-shaped burner, and includes fire hole units having a number of fire holes, a number of mixture supply tubes inserted in the tube-shaped burner and disposed at a predetermined distance so that gas and air are mixed and the mixed gas and air is supplied to the tube-shaped burner and the plate-shaped burner, a Venturi tube installed in front of the mixture supply tubes, mixing gas and air and playing a role of distributing an amount of flow of the mixed gas and air which is needed for independent combustion in each burner, and a manifolder connected to the Venturi tube and the mixture supply tubes, controlling an amount of gas and air. A number of premixed combustion gas burners each having an identical output capacity of the burner, are disposed in parallel with one another and a number of operating burners is varied according to a desired calorie.
Owner:KYUNGDONG NAVIEN +1

Method for controlling parallel redundancy of MVB master

The invention discloses a method for controlling the parallel redundancy of an MVB master. According to the method, two identical VCM modules are used as bus master modules, and the two VCM modules are connected into a network system simultaneously and monitor the state of an MVB simultaneously; under the condition that a master module on the MVB has a failure or is lost, a standby main module conducts redundancy switch, becomes a bus master and takes over the MVB. The method for controlling the parallel redundancy of the MVB master has the advantages that the principle is simple, and the reliability and the usability of the whole network system can be improved.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD

Glueless light emitting device with phosphor converter

A multi-stage lamination process is used to laminate a wavelength conversion film (220) to a transparent substrate (230), and subsequently to a light emitting element (110). The wavelength conversion film (220) may be an uncured phosphor-embedded silicone polymer, and the lamination process includes heating the polymer so that it adheres to the transparent substrate (230), but is not fully cured. The phosphor-laminated transparent substrate (230) is sliced / diced and the wavelength conversion film (220) of each diced substrate is placed upon each light emitting element (110). The semi-cured wavelength conversion film (220) is then laminated to the light emitting element (110) via heating, consequently curing the phosphor film. Throughout the process, no glue is used, and the optical losses associated with glue material are not introduced.
Owner:LUMILEDS

Air-fuel ratio control system for internal combustion engine

An air-fuel ratio control system for an internal combustion engine having a catalyst provided in an exhaust system of the engine for purifying exhaust gases and a first oxygen concentration sensor disposed upstream of the catalyst is disclosed. The air-fuel ratio control system controls an air-fuel ratio of an air-fuel mixture supplied to the engine. A degree of response deterioration of the first oxygen concentration sensor is detected. A response delay of the first oxygen concentration sensor is compensated according to the detected degree of deterioration to calculate a compensated sensor output. The air-fuel ratio is controlled so that a detected air-fuel ratio calculated from the compensated sensor output coincides with a target air-fuel ratio. A frequency characteristic of the compensation is adjusted according to the detected degree of deterioration.
Owner:HONDA MOTOR CO LTD

System and method for model-based control of a building fluid distribution system

A system and method generates test vectors and a corresponding test program to manipulate terminal units in a building system so pressure and flow measurements correspond to independent modeling equations. The pressure and flow responses of the building system to the test program manipulation may be used to compute loss coefficients for the modeling equations. The modeling equations may then be updated with the computed loss coefficients so a building simulation may be performed. The simulated static pressure response of the modeling equations may be compared to measured static pressures to evaluate the sufficiency of the modeling equations.
Owner:SIEMENS IND INC

Image data processing method, device and mobile terminal

The embodiment of the invention provides an image data processing method, device and mobile terminal. The method comprises the following steps: acquiring an original image data collected by a camera; recognizing the first human body image data in the original image data; acquiring an image processing parameter which is set while processing the second human body image data; processing the first human body image data according to the image processing parameter so as to acquire the target image data. Through the adoption of the method provided by the embodiment of the invention, the image processing parameter is fast set to process through the learning of the experience of other users, the technical threshold for image processing is greatly reduced; the setting of a reasonable image processing parameter can be guaranteed under the condition that the user is unfamiliar with the image processing technology, and the quality of the processed image data is improved.
Owner:BEIJING QIHOO TECH CO LTD +1

Physically unclonable function (PUF) memory employing static random access memory (SRAM) bit cells enhanced by stress for increased puf output reproducibility

InactiveUS20190305971A1Increase reproducibilityEnhance their skewUser identity/authority verificationDigital storageTransistor agingBit cell
Physically unclonable function (PUF) memory employing static random access memory (SRAM) bit cells enhanced by stress for increased PUF output reproducibility. Stress voltage applied to SRAM bit cells enhances their skew so that the SRAM bit cells output their preferred initial state in subsequent PUF read operations regardless of process variation and other external environmental variations, such as temperature. The application of stress voltage on the SRAM bit cells in a PUF memory array takes advantage of the recognition of aging effect in transistors, where turning transistors on and off over time can increase threshold voltage resulting in lower drive current. Stress voltage can be applied to the SRAM bit cells to bias their threshold voltage to simulate this aging effect to enhance mismatch between transistors in the SRAM bit cell to more fully skew the SRAM bit cells for increased PUF output reproducibility with less susceptible to noise.
Owner:QUALCOMM INC

Methods and system for delivering powertrain torque

Systems and methods for operating a driveline of a hybrid vehicle are disclosed. In one example, powertrain output is limited or constrained so that powertrain output variation is limited to a desired level at different altitudes. The powertrain output may be constrained based on a ratio of a threshold electric machine torque to a threshold engine torque.
Owner:FORD GLOBAL TECH LLC

Rotary travelling wave ultrasonic motor adopting brand new pre-pressure applying mode

PendingCN108880322AHigh torque to volume ratioThe proportion of the hollow space is smallPiezoelectric/electrostriction/magnetostriction machinesRigid rotorWaveplate
The invention relates to a rotary travelling wave ultrasonic motor adopting a brand new pre-pressure applying mode, which comprises a rigid rotor assembly. One side of the rigid rotor assembly is installed on a motor base through a bearing, and the other side of the rigid rotor assembly is sequentially provided with a stator assembly, a stator supporting frame and a pre-pressure shell; the rigid rotor assembly comprises a rigid rotor and a friction plate which are sequentially connected; the stator assembly comprises a stator, a piezoceramic plate and a flexible printed board which are sequentially connected; a waveform spring is further installed between the pre-pressure shell and the stator supporting frame; the rotary travelling wave ultrasonic motor adopting brand new pre-pressure applying mode has the advantages of a large hollow ratio, a high overload resistance, a good low-speed stability, a good low-temperature startability, etc., and the output performance consistency of the motor during the whole life is good; the application of the hollow ultrasonic motor in the large hollow ratio is expanded, such as used for a large hollow ratio optical lens to drive a lens and a waveplate.
Owner:南京航达超控科技有限公司

Artificial hand control method based on deep learning

The invention discloses an artificial hand control method based on deep learning. The method comprises the steps of selecting an action type of the hand; collecting a motion imagery electroencephalogram, and dividing the motion imagery electroencephalogram into a training sample and a sample to be tested; preprocessing the motion imagery electroencephalogram, wherein low-pass filtering and Laplacespatial filtering are involved; extracting features in the training sample by utilizing wavelet transform, and generating a time-frequency two-dimensional image of the training sample; constructing aconvolutional neural network model with the time-frequency two-dimensional image as input and the motion imagery action type as output, training adjustment parameters, and obtaining a trained model through multi-fold cross validation; extracting features in the sample to be tested by utilizing wavelet transform, generating a time-frequency two-dimensional image and an input model, and obtaining and outputting the corresponding motion imagery action type to serve as a control instruction to control an artificial hand to complete corresponding action. According to the method, common hand actionin life is selected as a classification target and is closer to a natural state, and the method has the advantages of more sufficient information utilization and higher stability and accuracy.
Owner:SOUTHEAST UNIV

Broadband high-reliability piezoelectric beam coupled energy collection device

The invention discloses a broadband high-reliability piezoelectric beam coupled energy collection device, which is formed by a plurality of piezoelectric beams arranged in the housing. The opposite ends of the piezoelectric beams are connected through a mass block made of a ferromagnetic material and a limit bolt to control large deformation under over-impact load. The housing is internally provided with a permanent magnet, which produces a magnetic field at the place of the mass block to form a piezoelectric magneto-elastic structure. Under the external vibration loading condition, the vibration energy is transferred to the housing, which makes the piezoelectric beams generate nonlinear vibration perpendicular to the piezoelectric beams, so that wideband energy collection is realized. Thetail ends of the piezoelectric beams are connected to an energy collection module, and the energy collection module collects electric charges generated by vibration of the piezoelectric beams. The device has the characteristics of large strain, wide response frequency and high charge output of the piezoelectric beams, as well as reliability of the structure in the vibration energy collection process, thereby not only ensuring efficient vibration energy collection, but also ensuring long-term reliable and stable working condition of the structure.
Owner:BEIJING CTROWELL INFRARED TECHN +1

Goa circuit and liquid crystal display device

The present invention involves a GOA circuit and a liquid crystal display. The GOA circuit comprises an N-th stage GOA unit, which comprises a pull-high control circuit, a pull-high circuit, a pull-down circuit, a pull-down sustain circuit, and a boast capacitor (Cb). A first clock signal CK(N) is inputted to the pull-high circuit. The pull-high control circuit comprises: A first thin film transistor (T11), whose gate electrode is connected with a stage-transfer signal output terminal of the (N-m)th stage GOA unit, whose source electrode and drain electrode are respectively connected with a gate electrode of a second thin film transistor (T12) and inputted with a second clock signal (XCK(N)). A source electrode and a drain electrode of the second thin film transistor (T12) are respectively connected with the stage-transfer signal output terminal of the (N-m)th stage GOA unit and the node (Q(N)) of the N-th stage GOA unit. The present invention also provides a corresponding liquid crystal display device. The GOA circuit and the liquid crystal display device of the present invention can make the output waveform of the node Q of each GOA unit be consistent.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Method for controlling homogeneity of fluorescent-whitened polyester staple fiber product

InactiveCN102134756AStable addition ratioAdd the same proportionFilament forming substance formingSpinning head liquid feederFiberTemperature control
The invention relates to a method for controlling homogeneity of a fluorescent-whitened polyester staple fiber product, which comprises the following process procedures of fusing and extruding a PBT (polybutylece terephthalate) fluorescent-whitening master batch by a screw extruder, quantitatively adding the extrudate to a PET (Positron Emission Tomography) fusant of a normal PET production and delivery pipeline through a first metering pump and a master batch fusant pipeline, pressurizing the extrudate through a booster pump to lead the extrudate to enter a fusant cooler to be cooled to normal spinning temperature, then leading the cooled extrudate to enter the fusant pipeline, mixing the extrudate through a static mixer to make the extrudate into a blending fusant of the PBT fluorescent-whitening master batch and PET, leading the blending fusant to enter a spinning box, metering the blending fusant by a second metering pump, leading the blending fusant to enter a spinning component for spinning, cooling and oiling spun silks, and dragging the spun silks by a dragging roller and a sunflower wheel to be sent into a silk holding barrel. The rotation speed of the booster pump and the first metering pump adopts signal interlock control; the master batch fusant pipeline and the first metering pump are respectively provided with a heat tracing temperature control system; and heat tracing media of the heat tracing temperature control systems adopt the primary heating medium series control of a heat tracing temperature control system of a normal PET fusant pipeline. By the control method, the addition proportion of a fluorescent whitening ingredient can be ensured to be a set value when production capacity is changed.
Owner:江苏华西村股份有限公司

Line narrowing module, light source of exposure apparatus comprising the same, and method of producing exposure light using line narrowing

A line narrowing module includes an elliptical mirror having first and second foci and having an opening adjacent to the second focus, a diffraction grating disposed at the first focus so as to separate an incident beam into different lines, and a laser beam dispersion and extraction unit. The laser beam dispersion and extraction unit is situated in the module and composed to disperse a laser beam, incident thereon from a region containing the second focus of the elliptical mirror, over the diffraction grating and selectively extract from the resulting lines a laser beam having a desired narrowed bandwidth. Most of the remainder of the light is reflected by the elliptical mirror to the region having the second focus. A light source that employs the line narrowing module also includes a laser oscillator for generating the beam whose bandwidth is narrowed by the module, and light returning unit that returns one fraction of the beam extracted fron the laser oscillator back to the laser oscillator. Another fraction of the beam is extracted from the laser oscillator through a front window of the laser oscillator, and undergoes line narrowing in the module. The laser beam having the narrowed bandwidth is immediately output as the exposure light from the module, whereas the remainder of the light is returned from the module back to the laser oscillator.
Owner:SAMSUNG ELECTRONICS CO LTD

Car door sliding rail stretch bending machine

PendingCN108500095AImprove the swing effectImprove swing efficiencyEngineeringMirror image
The invention discloses a car door sliding rail stretch bending machine. The car door sliding rail stretch bending machine comprises a support. Two stretch bending devices are arranged on the supportin a mirror image manner. Each stretch bending device comprises a movable platform and a drive mechanism, wherein the movable platform is arranged on the support and provided with an arc carrying track, and the movable platform is provided with a positioning device; and the drive mechanism comprises a steering disc, a lifting track and a steering drive piece, the position, corresponding to the movable platform, of the steering disc is rotationally arranged on the support, the steering disc is hinged to the movable platform, the lifting track is arranged on one side of the steering disc, the movable platform is provided with wheels, and the wheels and the lifting track are in sliding fit. A cropping device is arranged between the two stretch bending devices, and the support is further provided with an adjusting device for adjusting the distance between the two stretch bending devices. The improved structure of the car door sliding rail stretch bending machine is simple and reasonable, the whole machine structure is simple, stretch bending of a car door sliding rail in the vertical direction and the horizontal direction is effectively achieved, forming is fast, and the production efficiency is higher.
Owner:浙江创大汽车部件有限公司

Amplification of self-ligated, circularized cDNA for expression profiling

This invention presents a new cDNA amplification method. RNA is first converted to cDNA. The synthesis of cDNA can include a promoter tagged oligonucleotide, and then this cDNA is ligated to form circles (or possibly concatemers). This is then amplified using a Phi29 DNA polymerase based rolling circle and strand displacement amplification. The invention allows for RNA promoter sequences to be attached to the cDNA to facilitate additional amplification through the generation of RNA from the amplified cDNA. The resulting product can then be used to make materials for gene expression studies or other RNA analysis procedures.
Owner:GLOBAL LIFE SCI SOLUTIONS USA LLC

Magnetron cathodes

A magnetron cathode comprises electron emissive material included in a cathode body and a support structure for supporting the cathode body. The support structure has a longitudinal axis and includes a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat. The first cylinder and the second cylinder have an overlapping region in the longitudinal axial direction and are joined together. The cathode body is located around the first cylinder of the first part of the support structure and is joined to the first cylinder by a brazed joint. The outer surface of the first cylinder is grooved at the brazed joint.
Owner:E2V TECH (UK) LTD

Display panel and display device

The invention discloses a display panel and a display device, and relates to the technical field of display, the display panel comprises a display area and a non-display area surrounding the display area; the non-display area comprises a gate driving circuit; the gate drive circuit comprises a plurality of shift registers; in the first direction, the distance between two adjacent second transistors in the first shift register is larger than the distance between two adjacent second transistors in the second shift register; and / or in a second direction, the distance between two adjacent second transistors in the first shift register is greater than the distance between two adjacent second transistors in the second shift register, wherein the first direction and the second direction intersect; the non-display area further comprises a binding area and at least one special-shaped non-display area arranged close to the binding area. The driving chip is bound in the binding area; the at least one second shift register is located in the special-shaped non-display area. According to the invention, narrow bezel realization is facilitated.
Owner:SHANGHAI AVIC OPTOELECTRONICS

Proportioning equipment for collagen extraction and collagen extraction process

The invention discloses proportioning equipment for collagen extraction and a collagen extraction process, and relates to the technical field of collagen extraction. The proportioning equipment comprises a mixing box, wherein the top of the mixing box is fixedly connected with two proportioning boxes; the tops of the proportioning boxes are fixedly connected with transmission boxes; and the bottoms of the transmission boxes are provided with blanking grooves. According to the proportioning equipment for collagen extraction, a rack, a moving column and a threaded rod are arranged, so that fishskin powder slurry or neutral protease outlet liquid flows into the mixing box through the blanking grooves and a baffle plate; along with the reduction of the amount of the fishskin powder slurry or the neutral protease outlet liquid in the proportioning boxes, the liquid level of the fishskin powder slurry or the liquid level of the neutral protease outlet liquid is lowered; at the moment, a floating block moves downwards under the action of gravity, so that the floating block drives the moving column to move downwards; and then the bottom of a detection block is driven to be in contact with the detection block of a touch switch through the transmission of a transmission mechanism, so that the output amount of the fishskin powder slurry or the neutral protease outlet liquid is consistent every time.
Owner:王凯

Prediction method and system thereof of lamellar tearing resistance performance of steel used for high-rise building

The invention belongs to a prediction method and a system thereof of the lamellar tearing resistance performance of steel used for a high-rise building. The prediction method comprises the following steps: reading the base metal information, the rolling technology parameter and the hot rolling metallographic structure of steel materials to be measured from a database; establishing a PLS (Partial Least-Squares Regression) lamellar tearing resistance performance prediction model, and carrying out the checkout and control of prediction precision to obtain the PLS lamellar tearing resistance performance prediction model with the highest precision; calculating to obtain one group of lamellar tearing resistance performance prediction valuea of a specimen; according to an inverse mapping principle, obtaining an optimal rolling technology scheme corresponding to a maximum prediction value by reverse solution; and utilizing dedicated material image analysis software to carry out image analysis on the [Psi]Zmax specimen hot rolling metallographic structure, and measuring and outputting the average grain size, the ferrite volume ratio and the pearlite volume ratio of the [Psi]Zmax specimen hot rolling metallographic structure. The lamellar tearing resistance performance of the common-use steel used for the high-rise building can be predicted, and an ideal prediction result can be obtained so as to guarantee the optimization of the rolling technology and the control precision of the lamellar tearing resistance performance of the steel used for the high-rise building.
Owner:JIANGSU UNIV
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