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46 results about "Boundary length" patented technology
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Rapid positioning and identifying method based on two-dimensional code decoding
ActiveCN104933387AAdapt to various working conditionsImprove anti-interference abilitySensing by electromagnetic radiationInterference resistanceCoding decoding
The invention belongs to the technical field of two-dimensional code identification, and provides a rapid positioning and identifying method based on two-dimensional code decoding. The method comprises the following steps: performing median filter processing on an entire image; scanning the image, judging whether or not a two-dimensional code exists in the image, and if so, acquiring a two-dimensional code regional coordinate; intercepting a two-dimensional code image; performing adaptive binarization processing; performing connected area disposal on black pixel points; screening four boundaries; converting the coordinate system of the image into the coordinate system of the two-dimensional code; projecting the two-dimensional code under a new coordinate system to obtain the directivity, real boundary length and coordinate of the two-dimensional code and the barycentric coordinates of black-white blocks; judging the gray values of the black-white blocks to obtain a two-dimensional code information matrix; and acquiring decoding information. The method can adapt to various working conditions, and has the advantages of high contrast, high interference resistance and low investment cost. Automatic positioning and identifying functions can be finished by only one set of industrial camera and light source; high working efficiency is achieved; and the production requirement of an assembly line is met to the maximum extent.
Owner:SHANGHAI QUICKTRON INTELLIGENT TECH CO LTD
Method of processing dummy pattern based on boundary length and density of wiring pattern, semiconductor design apparatus and semiconductor device
ActiveUS20080179754A1Avoid changeSemiconductor/solid-state device detailsSolid-state devicesEngineeringSemiconductor
Owner:RENESAS ELECTRONICS CORP
Cell construct for cell transplantation, biocompatible polymer block, and method for producing the same
InactiveUS20150352252A1Suppress the necrosis of the transplanted cellsConducive to survivalBiocidePeptide/protein ingredientsHigh cellCytotoxicity
It is an object of the present invention to provide a cell construct for cell transplantation that does not contain a substance having cytotoxicity, such as glutaraldehyde, and suppresses the necrosis of the transplanted cells in the construct (namely, having a high cell survival rate). The present invention provides a cell construct for cell transplantation comprising biocompatible polymer blocks that do not contain glutaraldehyde and at least one type of cells, wherein a plurality of biocompatible polymer blocks are disposed in gaps among a plurality of cells, and wherein the biocompatible polymer blocks have a tap density of 10 mg / cm3 or more and 500 mg / cm3 or less, or the value of the square root of the cross-sectional area / boundary length in the two-dimensional sectional image of the polymer block is 0.01 or more and 0.13 or less.
Owner:FUJIFILM CORP
Method of processing dummy pattern based on boundary length and density of wiring pattern, semiconductor design apparatus and semiconductor device
InactiveUS20100327467A1Avoid changeSemiconductor/solid-state device detailsSolid-state devicesEngineeringSemiconductor
Owner:RENESAS ELECTRONICS CORP
Robust automatic image salient region segmenting method
The invention discloses a robust automatic image salient region segmenting method. The robust automatic image salient region segmenting method includes the steps of firstly, subjecting an image to superpixel segmenting to obtain geodesic distances, generating regions, boundary length and boundary communication values of image superpixels; secondly, subjecting an original input image to superpixel segment by an HSLIC (hexagonal simple linear iterative clustering) method, performing overall saliency detection by an SC (superpixel contrast) method to obtain a salient image of the image; finally, adopting the boundary communication values and a saliency value of the salient image, performing image segmenting and outputting a salient region segmenting result of the image. The robust automatic image salient region segmenting method has the advantages that the boundary communication values, the image saliency value and the image segmenting method are combined, and the image salient region segmenting result can be obtained by the aid of an automatic image segmenting technology.
Owner:SHANDONG SYNTHESIS ELECTRONICS TECH
Method for automatic tissue segmentation of medical images
ActiveUS20170213349A1Reduce calculationImage enhancementImage analysisPattern recognitionInter layer
A method to segment images that contain multiple objects in a nested structure including acquiring an image; defining the multiple objects by layers, each layer corresponding to one region, where a region contains an innermost object and all the objects nested within the innermost object; stacking the layers in an order of the nested structure of the multiple objects, the stack of layers having at least a top layer and a bottom layer; extending each layer with padded nodes; connecting the top layer to a sink and the bottom layer to a source, wherein each intermediate layer between the top layer and the bottom layer are connected only to the adjacent layer by undirected links; and measuring a boundary length for each layer.
Owner:RIVERSIDE RES INST +1
All solid-state secondary battery, inorganic solid electrolyte particles, solid electrolyte composition, electrode sheet for battery, and method for manufacturing all solid-state secondary battery
ActiveUS20170125842A1High ion conductivityImprove performanceSolid electrolytesCell electrodesAll solid stateElectrolyte composition
Provided are an all solid-state secondary battery capable of exhibiting an improved ion-conducting property regardless of troublesome manufacturing steps or special materials, inorganic solid electrolyte particles, a solid electrolyte composition, an electrode sheet for a battery, and a method for manufacturing an all solid-state secondary battery.An all solid-state secondary battery comprising: a positive electrode active material layer; a negative electrode active material layer; and an inorganic solid electrolyte layer between the positive and negative electrode active material layers, in which inorganic solid electrolyte particles satisfying all of the following data A are included in at least any layer of the positive electrode active material layer, the negative electrode active material layer, or the inorganic solid electrolyte layer:<data A>a boundary length of a projected particle of the inorganic solid electrolyte particle is represented by L;a cross-sectional area of the projected particle of the inorganic solid electrolyte particle is represented by A;an unevenness coefficient FU represented by Expression (1) below is in a range of 0.85 or more and 1 or less;FU=4πA / L2 (1).
Owner:FUJIFILM CORP
Image printing apparatus, image printing method, and storage medium
InactiveUS20110286011A1Reduce disadvantagesDigitally marking record carriersDigital computer detailsEntire faceComputer vision
A risk of a disadvantage was caused where the entire face of an image subjected to an interpolation or thinning processing causes an increased boundary length between a region including pixels (printing region) and a region not including pixels (paper background region) or causes a broken texture in the image. To prevent this, a transition area is provided in the image so that only the transition area can be subjected to an interpolation or thinning processing.
Owner:CANON KK
Semiconductor device and manufacturing method therefor
ActiveUS20090146254A1Reliable manufacturingLength can be ensuredTransistorSolid-state devicesSemiconductorBiomedical engineering
This semiconductor device according to the present invention includes a plurality of cylindrical lower electrodes aligned densely in a memory array region; a plate-like support which is contacted on the side surface of the cylindrical lower electrodes, and links to support the plurality of the cylindrical lower electrodes; a pore portion provided in the plate-like support; a dielectric film covering the entire surface of the cylindrical lower electrodes and the plate-like support in which the pore portion is formed; and an upper electrode formed on the surface of the dielectric film, wherein the boundary length of the part on the side surface of the cylindrical lower electrode which is exposed on the pore portion is shorter than the boundary length of the part on the side surface of the cylindrical lower electrode which is not exposed on the pore portion.
Owner:LONGITUDE SEMICON S A R L
Diamond-cladded hard alloy-made cutting tool improving tool nose strength
ActiveCN104002537AHigh strengthImprove wear resistanceLayered productsTransportation and packagingChemical treatmentAlloy
The invention provides a diamond-cladded hard alloy-made cutting tool improving tool nose strength. Stripping resistance between a diamond film and a tool basal body is improved. The tool nose strength is improved. Tool breaking resistance and wearing resistance are also improved. The diamond-cladded hard alloy-made cutting tool comprises a partially-eliminated metal matrix phase zone having a part eliminated by chemical processing from an interface of the tool basal body made of tungsten carbide-based hard alloys and the diamond film towards the tool basal body inner part as deep as 8 mu m. When the tool is observed from the right angle cross section of a rear tool plane adjacent to the tool nose (a zone located within 100 mu m from the tool nose front), a tungsten carbide crystal boundary beyond combination crystal boundaries between the tungsten carbides inside the partially-eliminated metal matrix phase zone and between the tungsten carbides and other carbides has a metal matrix phase with a thickness ranging from 10 nm to 300 nm and a length over a half of the tungsten carbide crystal boundary length exist. The weight ratio of the chromium existing in the metal matrix phase in the tungsten carbide crystal boundary to cobalt is between 0.21 to 0.4.
Owner:MITSUBISHI MATERIALS CORP
Remote sensing image landslide single body dividing method
ActiveCN107255516ARapid assessmentEfficient extractionImage analysisSpectrum investigationPost disasterEmergency rescue
The invention provides a remote sensing image landslide single body dividing method. The method includes based on the multi-spectral image data and DEM data of the study area, performing landslide extraction to obtain landslide objects; setting the NDVI standard deviation threshold and fusing the obtained landslide objects by means of a fusion algorithm; further fusing the fused landslide objects to a landslide trunk by means of the common boundary length threshold between landslides; and fusing the landslide trunk to the surrounding landslide objects by means of the percentage threshold of the common boundary in the landslide circumference to obtain landslide single bodies. According to the landslide single body dividing method, the extracted landslide objects can be divided into landslide single bodies one by one, so that an unreasonable huge landslide area can be prevented. Particularly, the large-scale landslide hazard caused by earthquakes or heavy rains can be rapidly evaluated, so that the landslide hazard area and quantity are obtained to be the reference for the post-disaster emergency rescue and rehabilitation work.
Owner:BEIJING NORMAL UNIVERSITY
Laser radar detection device and method for short-distance barriers
PendingCN109901193AGood for estimating the probability of collisionMake up mistakes quicklyElectromagnetic wave reradiationPoint cloudShortest distance
The invention discloses a laser radar detection device and method for short-distance barriers. According to the invention, four two-dimensional laser radars are utilized to scan the barriers so as toobtain original point cloud data corresponding to the barriers, wherein the original point cloud data comprises relative distances, relative angles and relative speeds of the barriers relative to a vehicle; then the point cloud data is partitioned into point cloud groups of the corresponding barriers, and according to outlines of the point cloud groups, boundary lengths of the barriers are obtained; and finally, motion paths of the dynamic barriers are predicted and tracked by utilizing a Kalman filtering method and an extrapolation method, the relative speeds and the boundary lengths of the corresponding dynamic barriers are transmitted to an automatic driving control device for use, then according to the relative distances, coordinates of the dynamic barrier which is the closest to the vehicle are obtained, and the coordinates are transmitted to the automatic driving control device for use so as to effective detect the barriers.
Owner:AUTOMOTIVE RES & TESTING CENT
Watershed segmentation method based on improved fast merging algorithm
The invention discloses a watershed segmentation method based on an improved fast merging algorithm. The method includes the following steps: (1) developing a complete set of preprocessing-based watershed segmentation algorithm technological process based on GF-1 data; (2) studying the influence of the global markup threshold alpha and the regional adaptive threshold adjustment coefficient g in the preprocessing-based watershed segmentation algorithm on the segmentation result, and analyzing the value ranges of alpha and g; (3) based on the initial segmentation result of the preprocessing-based watershed segmentation algorithm, using a Fast Lambda merging algorithm based on controllable common boundary length penalty to carry out region merging on the initial segmentation result through RAG and NNG to achieve a satisfactory segmentation result; and (4) studying the influence of the region merging control threshold T and the common boundary penalty coefficient lambda in the Fast Lambdamerging algorithm based on controllable common boundary length penalty on the merging result, and analyzing the value ranges of T and lambda.
Owner:三亚中科遥感研究所
Semiconductor device and manufacturing method therefor
ActiveUS20120187537A1Increase capacitanceFormed surelySolid-state devicesSemiconductor/solid-state device manufacturingSemiconductorBiomedical engineering
Owner:LONGITUDE LICENSING LTD
Measuring method of amount of soil wind erosion in the plot
ActiveCN106768821ARealize high-precision measurementAccurate dataAerodynamic testingSoil scienceAeolian processes
The invention provides a measuring method of amount of soil wind erosion in the plot, which comprises the first step, the plot for measuring and boundary are set; the second step, the soil wind corrosion circle is set; the third step, wind measuring device and collection part are installed; the fourth step, the speed and direction of the wind are counted; the fifth step, soil wind erosion material flow is corrected; the sixth step, the soil wind erosion material flow contributed by different grade of wind speed is determined, the seventh step, the eighth step, the soil wind erosion material flux is calculated; the ninth step; the relationship between the flux of the soil wind erosion material and the boundary length to the upper wind direction of the soil wind erosion circle is proposed, the length of the soil wind erosion in the plot to reach saturation state is determined; the tenth step, the length of the soil wind erosion saturation of other direction in the condition of different wind speed grade (i), the eleventh step, the irregular shape plot is converted into the equal area round plot; the twelfth step, the wind corrosion amount of different wind speed grades of each wind direction and the soil wind corrosion amount of plot are calculated.
Owner:BEIJING NORMAL UNIVERSITY
Highly pure copper anode for electrolytic copper plating, method for manufacturing same, and electrolytic copper plating method
Provided are a highly pure copper anode for electrolytic copper plating, a method for manufacturing the same, and an electrolytic copper plating method using the highly pure copper anode. The highly pure copper anode obtains a crystal grain boundary structure having a special grain boundary ratio LσN / LN of 0.35 or more. LN is a unit total special grain boundary length. LσN is a unit total special boundary length. By having the configuration described above, plating defect can be reduced by suppressing the occurrence of the particles, such as the slime or the like, which are generated on the anode side in the plating bath.
Owner:MITSUBISHI MATERIALS CORP
Automatic measuring method of film hot-shrinkage rate
ActiveCN108918579AHigh measurement accuracyRealize automatic searchMaterial thermal coefficient of expansionUsing optical meansImaging processingImaging analysis
The invention relates to an automatic measuring method of film hot-shrinkage rate. The automatic measuring method of film hot-shrinkage rate comprises following steps: a thin film sample is fixed using a thin film fixing clamping device based on negative pressure absorption, an industrial camera is used for obtaining thin film sample images under light source system illumination ; an image processing analyzing system is adopted for pre-treatment of the thin film sample images to remove interference and noise in the thin film images; an image analysis system is used for identifying thin film sample image boundaries, measuring boundary length, and performing data optimization; the steps 1 to 3 are adopted for measuring of the thin film sample boundary length before baking and after baking. According to the automatic measuring method, negative absorption principles are adopted to solve thin film rapid fixing difficulty, computer vision technology is adopted to realize automatic measuringof thin film heating before and after length, calculate thin film hot-shrinkage rate rapidly and accurately, industrial standards are achieved, and measuring is accurate and reliable.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
Multi-modal region-consistent significance object detection method based on foreground and background priori
ActiveCN104680523AEfficient integrationAccurate Significance ComputationImage analysisColor imagePlane segmentation
The invention discloses a multi-modal region-consistent significance object detection method based on foreground and background priori. The method comprises the following steps: 1) obtaining a color image and a depth image of a scene, while generating a point cloud; 2) using the color image and the depth image for the scene segmentation; 3) using an object region-based detection method for detecting all regions of the image to obtain a focal region, taking the focal region as foreground priori in the color image; 4) detecting a plane region of the point cloud as a background priori, obtaining point cloud data from the color image and the corresponding depth image, detecting a plane structure in the point cloud data, then calculating the boundary length of a scene connection boundary, calculating a background connectivity of plane segmentation, and obtaining over-segmentation background weight; 5) calculating to obtain a global region contrast SG(rk), obtaining a significance map through the formula below: S(rk)=SF(rk)*SB(rk)*SG(rk). The multi-modal region-consistent significance object detection method effectively improves the accuracy.
Owner:HANGZHOU HUICUI INTELLIGENT TECH CO LTD
Image printing apparatus, image printing method, and storage medium
InactiveUS8614825B2Reduce disadvantagesDigitally marking record carriersDigital data processing detailsComputer graphics (images)Entire face
A risk of a disadvantage was caused where the entire face of an image subjected to an interpolation or thinning processing causes an increased boundary length between a region including pixels (printing region) and a region not including pixels (paper background region) or causes a broken texture in the image. To prevent this, a transition area is provided in the image so that only the transition area can be subjected to an interpolation or thinning processing.
Owner:CANON KK
Sub-pixel boundary rapid detection method for cutter measurement
InactiveCN106251327AHigh-resolutionLow costImage enhancementImage analysisAlgorithmMeasurement precision
The invention discloses a sub-pixel boundary rapid detection method for tool measurement. The method includes four steps of image preprocessing, image binarization, pixel boundary location and sub-pixel boundary optimization. The image binarization adopts the OTSU method to automatically calculate the threshold of the image, so that the invention can adapt to the change of environmental brightness; based on the connectivity clustering, the pixel-level boundary of the image is obtained. In order to reduce the influence of noise, for the boundary whose length is less than the average boundary length Filtering out; sub-pixel boundary optimization adopts the method of bilinear interpolation, using the threshold value in the binarization method as a reference value, and interpolating in the x and y directions respectively to obtain the boundary of sub-pixel precision. Due to the adoption of the OTSU automatic threshold calculation method and bilinear interpolation method, the invention does not require manual interaction and parameter setting, and is simple in calculation, strong in robustness, and capable of adapting to changes in ambient brightness. Without increasing hardware costs, the invention can greatly Improve measurement accuracy in tool measurement.
Owner:HUNAN UNIV
Semiconductor device and manufacturing method therefor
ActiveUS8169015B2Increase capacitanceFormed surelyTransistorFixed capacitor dielectricSemiconductorBiomedical engineering
Owner:LONGITUDE SEMICON S A R L
Establishing technology method of microphysical model of atmospheric particulates
The invention discloses an establishing technical method of a microphysical model of atmospheric particulates. The method comprises the following steps: determining the accurate positions and areas of the atmospheric particulates on a microscope image through multi-feature mean shift image segmentation, based on an electron microscope image of the atmospheric particulates; obtaining rich morphological characteristics through a morphological attribute section, obtaining accurate geometrical information through an angular point and edge detection technology, generating a corresponding texture characteristic through a gray co-occurrence matrix, and improving the segmentation accuracy through various characteristics; obtaining geometrical information, such as the length, width, boundary length and incircle / circumcircle radiuses, according to a microscope scale; directly reestablishing a three-dimensional microphysical model from a single-perspective two-dimensional projection image according to auxiliary information, such as chemical components, volume and surface roughness, the morphological parameters of typical particulates and image shadow recovery depth information. A more real simulation result is obtained in a manner of generating a plurality of microphysical models to perform optimization.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
A method for measuring wind erosion of soil in a plot
The invention provides a measuring method of amount of soil wind erosion in the plot, which comprises the first step, the plot for measuring and boundary are set; the second step, the soil wind corrosion circle is set; the third step, wind measuring device and collection part are installed; the fourth step, the speed and direction of the wind are counted; the fifth step, soil wind erosion material flow is corrected; the sixth step, the soil wind erosion material flow contributed by different grade of wind speed is determined, the seventh step, the eighth step, the soil wind erosion material flux is calculated; the ninth step; the relationship between the flux of the soil wind erosion material and the boundary length to the upper wind direction of the soil wind erosion circle is proposed, the length of the soil wind erosion in the plot to reach saturation state is determined; the tenth step, the length of the soil wind erosion saturation of other direction in the condition of different wind speed grade (i), the eleventh step, the irregular shape plot is converted into the equal area round plot; the twelfth step, the wind corrosion amount of different wind speed grades of each wind direction and the soil wind corrosion amount of plot are calculated.
Owner:BEIJING NORMAL UNIVERSITY
Liquid surface tension coefficient measuring device
The invention discloses a liquid surface tension coefficient measuring device. A force sensor is arranged on a support frame; the support frame is fixedly arranged on a base; a culture dish for containing liquid to be tested is arranged right under a hanging ring; an opening formed in the bottom of a sleeve is connected with one end of a hose; the other end of the hose is provided with two branchpipes; a one-way valve is connected onto one branch pipe; a flow limiting valve is connected onto the other branch pipe; liquid is contained in a liquid tank; a compression block is glidingly matchedwith the upper part of the liquid tank; a thin sheet suspends on the surface of the liquid to be tested in the culture disk; the diameter of the thin sheet is smaller than the inner diameter of the hanging ring. A liquid membrane is lifted by the hanging ring in a hydraulic mode; the liquid membrane generates slow and uniform changes; the vibration is small, so that the measurement precision is ensured. By the scheme, the suspended thin sheet is additionally added in the liquid to be tested; the waist collection degree during the liquid membrane pulling can be effectively reduced by the thin sheet, so that when the inner diameter*2 of the hanging ring is used as the boundary length 1, the errors are small.
Owner:SICHUAN SHIJI ZHONGKE PHOTOELECTRIC TECH
Adjacent boundary length deducing method and device
The embodiment of the invention provides an adjacent boundary length deducing method and device. The adjacent boundary length deducing method comprises the following steps: determining whether fusion of continuous adjacent blocks into an adjacent unit is performed or not according to the situation that whether prediction information in the continuous adjacent blocks is consistent or not, and deducing the boundary information of the adjacent unit; calculating the adjacent boundary length according to the boundary information of the adjacent unit and the adjacent side of a current block. According to the adjacent boundary length calculation method, the adjacent boundary length information can be obtained by calculating under the condition of saving memory overhead; the obtained boundary length information can be used in the subsequent video coding and decoding technology such as the prediction of motion vectors and the most probable intra-frame mode, so as to improve the video coding efficiency.
Owner:ZHEJIANG UNIV
Operation interface sliding method and system
ActiveCN105446618ASlide to achieveImprove the display effectInput/output processes for data processingDisplay deviceBoundary length
The present invention relates to an operation interface sliding method and system. The operation interface sliding method comprises the following steps: acquiring layout information of each operation interface on a display device, and generating a virtual operation interface according to the layout information; reading a sliding pattern input to the virtual operation interface by a user; acquiring a distance of the sliding pattern in a sliding direction of the virtual operation interface; detecting a boundary length in the sliding direction of the virtual operation interface, and acquiring a correspondence between the distance and the boundary length; and sliding the virtual operation interface according to the correspondence, and according to sliding of the virtual operation interface, controlling a corresponding operation interface to slide. According to the method and system provided by the present invention, when a plurality of operation interfaces are slid, the virtual operation interface can be slid according to the correspondence between the distance of the corresponding sliding pattern and the corresponding boundary length, so as to slide the operation interface on the display device; and moreover, a display effect of the corresponding display device during sliding of the operation interface can be improved.
Owner:GUANGDONG VTRON TECH CO LTD
Method and device for measuring soil wind erosion
ActiveCN104677588BImprove applicabilityCalculation method is simpleAerodynamic testingMeasurement pointAeolian processes
The invention discloses a soil wind erosion measurement method, comprising the following steps: determining a circular measurement area, selecting several measurement points on the circumference; The sand collecting device in the center of the circle collects the wind erosion that leaves and enters the measurement area respectively; calculates the sand flux Qin and Qout that enters and leaves the measurement area, and the difference between the two is the single-width sand transport rate Q of the measurement area, which is The single-width sand transport rate Q is substituted into the following formula: A=Q×2πr÷πr2 to obtain the amount of soil wind erosion. The present invention does not need to keep the wind direction stable in the same wind erosion event, and does not need to calculate the variation of the sediment load with the length and define the non-erosive boundary, which increases the applicability of the present invention, simplifies the calculation method, and also improves the accuracy of the measurement. accuracy. The invention also discloses a soil wind erosion measuring device, which has high accuracy.
Owner:BEIJING NORMAL UNIVERSITY
Pattern data creating method, computer program product, and semiconductor device manufacturing method
InactiveUS20100185313A1Semiconductor/solid-state device manufacturingOriginals for photomechanical treatmentPattern recognitionSemiconductor
A pattern data creating method comprising: referring to a first correspondence relation between an amount of dimension variation between a first pattern formed on a substrate and a second pattern formed by processing the substrate using the first pattern and either one of a pattern total surface area and a pattern boundary length of the first pattern; and creating pattern data for forming the first pattern.
Owner:KK TOSHIBA
Crystal boundary density measuring method
InactiveCN103884624AAvoid quantization precision effectsHigh measurement accuracySpecific gravity measurementMeasurement precisionImage area
The invention provides a crystal boundary density measuring method which includes the steps as follows: displaying crystal boundaries; obtaining an image; calculating an image area S based on an amplification multiple, the obtained image area S=(photograph measurement length a / amplification multiple M)*(photograph measurement width b / amplification multiple M); measuring all the crystal boundary lengths in the observation scope and summing all the measured crystal boundary lengths with a summation result being L, wherein the lengths are measured in that: each crystal boundary is subjected to differential processing with an end point coordinate of each differential unit being (x1,y1) (x2,y2), so that a differential unit length l is calculated by a formula as follows, all the differential unit lengths are summed and the crystal boundary length L is obtained; finally calculating a crystal boundary density A=L / S. The measuring method solves the problem that the measuring precision is low because of the little quantity of crystal grains.
Owner:ANGANG STEEL CO LTD
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