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The State Power Corporation issued the annual main points of works
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《Electricity》 2001年第1期42-42,共1页
关键词 well the State Power Corporation issued the annual main points of works
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Semantic model and optimization of creative processes at mathematical knowledge formation
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作者 Victor Egorovitch Firstov 《Natural Science》 2010年第8期915-922,共8页
The aim of this work is mathematical education through the knowledge system and mathematical modeling. A net model of formation of mathematical knowledge as a deductive theory is suggested here. Within this model the ... The aim of this work is mathematical education through the knowledge system and mathematical modeling. A net model of formation of mathematical knowledge as a deductive theory is suggested here. Within this model the formation of deductive theory is represented as the development of a certain informational space, the elements of which are structured in the form of the orientated semantic net. This net is properly metrized and characterized by a certain system of coverings. It allows injecting net optimization parameters, regulating qualitative aspects of knowledge system under consideration. To regulate the creative processes of the formation and realization of mathematical know- edge, stochastic model of formation deductive theory is suggested here in the form of branching Markovian process, which is realized in the corresponding informational space as a semantic net. According to this stochastic model we can get correct foundation of criterion of optimization creative processes that leads to “great main points” strategy (GMP-strategy) in the process of realization of the effective control in the research work in the sphere of mathematics and its applications. 展开更多
关键词 the Cybernetic Conception Optimization of CONTROL Quantitative And Qualitative Information Measures Modelling Intellectual Systems Neural Network MAtheMATICAL Education the CONTROL of Pedagogical PROCESSES CREATIVE Pedagogics Cognitive And CREATIVE PROCESSES Informal Axiomatic thery SEMANTIC NET NET Optimization Parameters the Topology of SEMANTIC NET Metrization the System of Coverings Stochastic Model of CREATIVE PROCESSES At the Formation of MAtheMATICAL Knowledge Branching Markovian Process Great main points Strategy (GMP-Strategy) of the CREATIVE PROCESSES CONTROL Interdisciplinary Learning: Colorimetric Barycenter
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Constrained Edge Dynamic Deleting in CD-TIN Based on Influence Domain Retriangulation of Virtual Point
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作者 WANG Yanbing WU Lixin SHI Wenzhong 《Geo-Spatial Information Science》 2007年第3期208-212,共5页
Constrained Delaunay triangulated irregular network is one kind of dynamic data structures used in geosciences. The research on point and edges insertion in CD-TIN is the basis of its application. Comparing with the a... Constrained Delaunay triangulated irregular network is one kind of dynamic data structures used in geosciences. The research on point and edges insertion in CD-TIN is the basis of its application. Comparing with the algorithms of points and constrained edge insertion, there are very a few researches on constrained edge deletion in CD-TIN. Based on the analysis of the polymorphism of constrained edge, virtual points are used to describe the intersection of constrained edges. A new algorithm is presented, called as influence domain retriangulating for virtual point (IDRVP), to delete constrained edges with virtual points. The algorithm is complete in topology. Finally, the algorithm is tested by some applications cases. 展开更多
关键词 CD-TIN data updating constrained edge deletion virtual point influence domain retriangulation
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TRANSVERSE VIBRATION OF RECTANGULAR PLATES ELASTICALLY SUPPORTED AT POINTS ON EDGES
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作者 周叮 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1989年第10期979-987,共9页
This paper studies transverse vibration of rectangular plates with two opposite edges simply supperted other two edges arbitrarily supported and free edges elaslically supported at points,A highly accurate solution is... This paper studies transverse vibration of rectangular plates with two opposite edges simply supperted other two edges arbitrarily supported and free edges elaslically supported at points,A highly accurate solution is presented for calculating inherent frequencies and mode shape of rectangular platen elaslically supported at points. The number and location of these points on free edges may be completely arbitrary. This paper uses impulse function to represent reaction and moment at points. Fourter series is used to expand the impulse function along the edges. Characteristic equations satisfying all boundary conditions are given.Inherent frequencies and mode shape with any accutacy can be gained. 展开更多
关键词 TRANSVERSE VIBRATION of RECTANGULAR PLATES ELASTICALLY SUPPORTED AT points ON edgeS MODE AT
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Spatial variation law of vertical derivative zero points for potential field data 被引量:8
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作者 王万银 张功成 梁建设 《Applied Geophysics》 SCIE CSCD 2010年第3期197-209,292,共14页
In this paper we deduce the analytic solutions of the first- and second-order vertical derivative zero points for gravity anomalies in simple regular models with single, double, and multiple edges and analyze their sp... In this paper we deduce the analytic solutions of the first- and second-order vertical derivative zero points for gravity anomalies in simple regular models with single, double, and multiple edges and analyze their spatial variation. For another simple regular models where it is difficult to obtain the analytic expression of the zero point, we try to use the profile zero points to analyze the spatial variation. The test results show that the spatial variation laws of both first- and second-order vertical derivative zero points are almost the same but the second-order derivative zero point position is closer to the top surface edge of the geological bodies than the first-order vertical derivative and has a relatively high resolution. Moreover, with an increase in buried depth, for a single boundary model, the vertical derivative zero point location tends to move from the top surface edge to the outside of the buried body but finally converges to a fixed value. For a double boundary model, the vertical derivative zero point location tends to migrate from the top surface edge to the outside of the buried body. For multiple boundary models, the vertical derivative zero point location converges from the top surface edge to the outside of the buried body where some zero points coincide and finally vanish. Finally, the effectiveness and reliability of the proposed method is verified using real field data. 展开更多
关键词 vertical derivative zero point spatial variation law edge location
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Detection of text in images using SUSAN edge detector 被引量:2
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作者 毛文革 张田文 王力 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第1期34-40,共7页
Text embedded in images is one of many important cues for indexing and retrieval of images and videos. In the paper, we present a novel method of detecting text aligned either horizontally or vertically, in which a py... Text embedded in images is one of many important cues for indexing and retrieval of images and videos. In the paper, we present a novel method of detecting text aligned either horizontally or vertically, in which a pyramid structure is used to represent an image and the features of the text are extracted using SUSAN edge detector. Text regions at each level of the pyramid are identified according to the autocorrelation analysis. New techniques are introduced to split the text regions into basic ones and merge them into text lines. By evaluating the method on a set of images, we obtain a very good performance of text detection. 展开更多
关键词 text detection SUSAN edge detector point of interest projection profile split and merge
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Element-free Galerkin method for free vibration of rectangular plates with interior elastic point supports and elastically restrained edges 被引量:1
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作者 王砚 王忠民 阮苗 《Journal of Shanghai University(English Edition)》 CAS 2010年第3期187-195,共9页
The element-free Galerkin method is proposed to solve free vibration of rectangular plates with finite interior elastic point supports and elastically restrained edges.Based on the extended Hamilton's principle for t... The element-free Galerkin method is proposed to solve free vibration of rectangular plates with finite interior elastic point supports and elastically restrained edges.Based on the extended Hamilton's principle for the elastic dynamics system,the dimensionless equations of motion of rectangular plates with finite interior elastic point supports and the edge elastically restrained are established using the element-free Galerkin method.Through numerical calculation,curves of the natural frequency of thin plates with three edges simply supported and one edge elastically restrained,and three edges clamped and the other edge elastically restrained versus the spring constant,locations of elastic point support and the elastic stiffness of edge elastically restrained are obtained.Effects of elastic point supports and edge elastically restrained on the free vibration characteristics of the thin plates are analyzed. 展开更多
关键词 element free method rectangular thin plates interior elastic point supports elastically restrained edges free vibration
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The proposed main points of the revision of the Chinese Maritime Code
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作者 HU Zhengliang SUN Siqi 《海大法律评论》 2017年第1期1-20,共20页
The main points of the revision in the near future of the Chinese Maritime Code are discussed,which include extension of the scope of application of the Code to the transport and vessels in inland navigable waters adj... The main points of the revision in the near future of the Chinese Maritime Code are discussed,which include extension of the scope of application of the Code to the transport and vessels in inland navigable waters adjacent to the sea,modernization of the law on the contracts of carriage of goods by sea,establishment of legal regime governing compensation for marine pollution from ships,improvement of provisions regarding shipmasters and crew in order to provide them with more protections,and the increase of the global limits of liability and the limit of liability of carrier for death of or personal injuries to passengers especially in the domestic trade. 展开更多
关键词 CHINESE MARITIME CODE REVISION main points
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Study on Processing Technology of Health Beverage Made from Artemisia Selengensis Turoz and Green Tea 被引量:1
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作者 吴存兵 吴君艳 +3 位作者 田林双 窦勇 李昱萱 彭芳琦 《Agricultural Science & Technology》 CAS 2014年第6期990-993,共4页
This study took Artemisia selengensis Turoz and green tea as primary materials and sugar, lemon acid potassium as supplementary materials to make compound health beverage.The main influence factors to the quality of t... This study took Artemisia selengensis Turoz and green tea as primary materials and sugar, lemon acid potassium as supplementary materials to make compound health beverage.The main influence factors to the quality of the compound beverage were investigated,such as addition amounts ofArtemisia selengensis juice, green tea juice,sugar and lemon acid.By orthogonal test ,the best formula of the compound health beverage is Artemisia selengensis juice 10 ml, green tea juice 200 ml, sugar 6 g and lemon acid 0.06 g. The optimum stabilizer of the beverage is CMC-Na with 0.03% amount. 展开更多
关键词 Artemisia selengensis turoz Green tea Compound beverage Process-ina technoloqy main technique points
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Observation on the clinical efficacy of spasmodic torticollis treated with matrix needling technique and acupuncture at “Wuxin points” mainly
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作者 徐彦龙 《China Medical Abstracts(Internal Medicine)》 2013年第3期134-135,共2页
Objective To compare the difference in the efficacy on spasmodic torticollis between matrix needling technique combined with puncturing"Wuxin points"and the local injection of botox type A.Methods Forty-two ... Objective To compare the difference in the efficacy on spasmodic torticollis between matrix needling technique combined with puncturing"Wuxin points"and the local injection of botox type A.Methods Forty-two cases were randomized into an acupuncture group and a 展开更多
关键词 ACUPUNCTURE Wuxin points mainly OBSERVATION visit markedly MUSCULAR bilateral WEAKNESS injected
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水平定向钻法穿越对既有城市主干给水管的影响分析
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作者 吴亮 戴俊豪 《山西建筑》 2025年第3期162-165,共4页
作为城市生命线重要组成部分的城市主干给水管的安全影响着城市的正常运行,在工程建设中需要对其加以严格保护。新建电力管工程位于既有DN1800 mm城市主干给水管下方,并与其呈81°空间交汇,上下净距11.80 m。新建电力管采用水平定... 作为城市生命线重要组成部分的城市主干给水管的安全影响着城市的正常运行,在工程建设中需要对其加以严格保护。新建电力管工程位于既有DN1800 mm城市主干给水管下方,并与其呈81°空间交汇,上下净距11.80 m。新建电力管采用水平定向钻法穿越,为确保既有给水管安全,采用有限元分析了穿越施工对管线的影响,在施工全过程对管道及管侧土体进行了监测,实测数据与有限元分析结果较为吻合,表明该施工方法是安全可行的。 展开更多
关键词 水平定向钻法 城市主干给水管 有限元分析 直接监测点
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Several Inequalities Involving Two Simplexes and Interior Points 被引量:2
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作者 周永国 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第4期628-632,共5页
This article establishes several new geometric inequalities, which refer to the lengthes of the edges of a simplex and interior point, height, lateral area, and the circumradius of another simplex.
关键词 SIMPLEX the length of edge interior point geometric inequality
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An algorithm of image segmentation for overlapping grain image 被引量:3
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作者 WANG Zhi JIN Guang SUN Xiao-wei 《光学精密工程》 EI CAS CSCD 北大核心 2005年第5期592-598,共7页
Aiming at measurement of granularity size of nonmetal grain, an algorithm of image segmentation and parameter calculation for microscopic overlapping grain image was studied. This algorithm presents some new attribute... Aiming at measurement of granularity size of nonmetal grain, an algorithm of image segmentation and parameter calculation for microscopic overlapping grain image was studied. This algorithm presents some new attributes of graph sequence from discrete attribute of graph,and consequently achieves the geometrical characteristics from input graph, and the new graph sequence in favor of image segmentation is recombined. The conception that image edge denoted with “twin-point” is put forward, base on geometrical characters of point, image edge is transformed into serial edge, and on recombined serial image edge, based on direction vector definition of line and some additional restricted conditions, the segmentation twin-points are searched with, thus image segmentation is accomplished. Serial image edge is transformed into twin-point pattern, to realize calculation of area and granularity size of nonmetal grain. The inkling and uncertainty on selection of structure element which base on mathematical morphology are avoided in this algorithm, and image segmentation and parameter calculation are realized without changing grain’s self statistical characters. 展开更多
关键词 图象分割 脉冲神经网络 人工神经网络 模式识别 周期性差异
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Mechanical properties of nickel-titanium archwire used in the final treatment phase of Tip-Edge Plus technique: an in vitro study 被引量:3
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作者 SHEN Xiao SUN Xin-hua +3 位作者 TIAN Hua ZHANG Chun-bo YAN Kuo GUO Yong-liang 《Chinese Medical Journal》 SCIE CAS CSCD 2013年第1期135-139,共5页
Background As the only active component in final treatment phase of Tip-Edge Plus technique, the activation of nickel-titanium orthodontic archwires is one of the factors that affect the torque expression. It is neces... Background As the only active component in final treatment phase of Tip-Edge Plus technique, the activation of nickel-titanium orthodontic archwires is one of the factors that affect the torque expression. It is necessary to evaluate the mechanical properties of the nickel-titanium wire used in the final treatment phase in simulated oral environments to forecast the treatment outcomes. Methods The mechanical properties of 171 thermal nickel-titanium wires of 0.35 mm (0.014-in) in diameters with different deflection of 40 mm in length were investigated with three-point bending test. The samples were divided into 2 groups: as-received and bended groups. In the bended group, samples were divided into 7 subgroups according to the amounts of deflection and named by the canine angulations (-25~, -19~, -13~, -7~, -1~, +5~, +11~). The deflection of wires was made by inserting the wires into the deep tunnel of Tip-Edge Plus brackets positioned in plaster casts with different canine angulations to mimic the use of nickel-titanium wires in the final treatment phase. Immersed the bended group in artificial saliva (pH 6.8) and preserved at 37.0~C. Eight durations of incubation were tested: 1 to 8 weeks. Three analogous samples of each group and subgroups were tested per week. Stiffness (YS:E) and the load-deflection characteristics of unloading plateau section were obtained. Results Significant changes in specific mechanical properties were observed in long-term immersed and large deflected wires compared with as-received groups. Both immersion time and deflection affected the mechanical properties of wires in the simulated oral environment, and the two factors had synergistic effect. In groups -25~, -19~ and -13~, stiffness (YS:E) increased then decreased and average plateau force and ratio of variance decreased then increased correspondingly at specific time. Conclusions In the final treatment phase of Tip-Edge Plus technique, the mechanical properties of nickel-titanium wire are associated with the using time and amounts of deflection and it may affect treatment outcomes. As the main reason for wire deflection, canine crown angulation plays an important role in the wire performance. It may be wise to focus on the canine crown angulations and using time in clinic with Tip-Edge Plus technique and make proper adjustment to help to make sure the treatment outcomes. 展开更多
关键词 Tip-edge Plus archwires NICKEL-TITANIUM three-point bending test crown angulation
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Complex Network Formation and Analysis of Online Social Media Systems
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作者 Hafiz Abid Mahmood Malik 《Computer Modeling in Engineering & Sciences》 SCIE EI 2022年第3期1737-1750,共14页
To discover and identify the influential nodes in any complex network has been an important issue.It is a significant factor in order to control over the network.Through control on a network,any information can be spr... To discover and identify the influential nodes in any complex network has been an important issue.It is a significant factor in order to control over the network.Through control on a network,any information can be spread and stopped in a short span of time.Both targets can be achieved,since network of information can be extended and as well destroyed.So,information spread and community formation have become one of the most crucial issues in the world of SNA(Social Network Analysis).In this work,the complex network of twitter social network has been formalized and results are analyzed.For this purpose,different network metrics have been utilized.Visualization of the network is provided in its original form and then filter out(different percentages)from the network to eliminate the less impacting nodes and edges for better analysis.This network is analyzed according to different centrality measures,like edge-betweenness,betweenness centrality,closeness centrality and eigenvector centrality.Influential nodes are detected and their impact is observed on the network.The communities are analyzed in terms of network coverage considering theMinimum Spanning Tree,shortest path distribution and network diameter.It is found that these are the very effective ways to find influential and central nodes from such big social networks like Facebook,Instagram,Twitter,LinkedIn,etc. 展开更多
关键词 Complex network data extraction nodes and edges network visualization social media network main hubs centrality measures
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Contrast Enhancement Based Image Detection Using Edge Preserved Key Pixel Point Filtering
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作者 Balakrishnan Natarajan Pushpalatha Krishnan 《Computer Systems Science & Engineering》 SCIE EI 2022年第8期423-438,共16页
In existing methods for segmented images,either edge point extraction or preservation of edges,compromising contrast images is so sensitive to noise.The Degeneration Threshold Image Detection(DTID)framework has been p... In existing methods for segmented images,either edge point extraction or preservation of edges,compromising contrast images is so sensitive to noise.The Degeneration Threshold Image Detection(DTID)framework has been proposed to improve the contrast of edge filtered images.Initially,DTID uses a Rapid Bilateral Filtering process for filtering edges of contrast images.This filter decomposes input images into base layers in the DTID framework.With minimal filtering time,Rapid Bilateral Filtering handles high dynamic contrast images for smoothening edge preservation.In the DTID framework,Rapid Bilateral Filtering with Shift-Invariant Base Pass Domain Filter is insensitive to noise.This Shift-Invariant Filtering estimates value across edges for removing outliers(i.e.,noise preserving base layers of the contrast image).The intensity values are calculated in the base layer of the contrast image for accurately detecting nearby spatial locations using Shift-Invariant base Pass Domain Filter(SIDF).At last,Affine Planar Transformation is applied to detect edge filtered contrast images in the DTID framework for attaining a high quality of the image.It normalizes the translation and rotation of images.With this,Degeneration Threshold Image Detection maximizes average contrast enhancement quality and performs an experimental evaluation of factors such as detection accuracy,rate,and filtering time on contrast images.Experimental analysis shows that the DTID framework reduces the filtering time taken on contrast images by 54%and improves average contrast enhancement quality by 27%compared to GUMA,HMRF,SWT,and EHS.It provides better performance on the enhancement of average contrast enhancement quality by 28%,detection accuracy rate by 26%,and reduction in filtering time taken on contrast images by 30%compared to state-of-art methods. 展开更多
关键词 Rapid bilateral filtering edge preserved filtering affine planar transformation key pixel point localization shift-invariant base pass domain filter
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基于Solid Edge的转炉本体研究与设计优化
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作者 朱晓琼 《甘肃冶金》 2014年第4期26-29,共4页
本文介绍了基于Solid Edge的转炉本体研究和设计优化,利用SE对其进行三维的数字化,优化设计和设计计算,大大地简化了转炉重心的确定和倾动力矩的计算步骤,通过Solid Edge对转炉本体参数化,有效地提高产品设计的质量和开发的效率。
关键词 Slid edge 转炉本体 三维建模 倾动力矩
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CAS 132-2006 Standard for Flat Panel Display TV Set Installation Service Formulating and Enforcing Main Point Explanation and Analysis
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作者 TCL group, TTE China Business Center Technical Service Depart-ment. 《China Standardization》 2007年第4期26-31,共6页
  CAS 132-2006 formulation background and work courses   Flat panel display technology is maturing alongside the development of science and technology. The prices of flat panel display TV sets are becoming lower ...   CAS 132-2006 formulation background and work courses   Flat panel display technology is maturing alongside the development of science and technology. The prices of flat panel display TV sets are becoming lower and lower. Flat panel display TV sets have begun entering the mainstream and are now the first choice of some consumers when making new TV purchases.Display TV Set Installation Service Point Explanation and AnalysisRepair, Retreat and Change Duty Stipulations. Peculiar use conditions, usage environments, and the practical circumstances of user consumption service requirements, etc., were also taken into account on the basis of extensive investigation, testing, and verification.…… 展开更多
关键词 TV In CAS 132-2006 Standard for Flat Panel Display TV Set Installation Service Formulating and Enforcing main Point Explanation and An
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Check Point VPN-1 UTM Edge安全设备精益求精
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《中国新通信》 2006年第15期93-93,共1页
在全球互联网安全领域首屈一指的Check Point软件技术有限公司最近宣布推出含内置ADSL调制解调器的Check Point VPN-1 UTM Edge。这款一体化设备能简化安全部署,同时提供严密的安全保护,确保企业能全面掌握对分支办公地点的安全管理。
关键词 Check Point 安全设备 edge ADSL调制解调器 求精 互联网安全 一体化设备 有限公司 软件技术
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基于显著性区域检测的多尺度图像盲复原算法
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作者 赵小强 王涛 +1 位作者 宋昭漾 蒋红梅 《兵工学报》 EI CAS CSCD 北大核心 2024年第11期4020-4030,共11页
针对大多数基于先验的盲图像去模糊算法耗时较长和显著边缘结构提取不理想的问题,提出一种基于显著性区域检测的多尺度图像盲复原算法。为了复原出更加清晰的图像,采用由粗略到精细的多尺度交替迭代框架构建图像金字塔。在图像单一尺度... 针对大多数基于先验的盲图像去模糊算法耗时较长和显著边缘结构提取不理想的问题,提出一种基于显著性区域检测的多尺度图像盲复原算法。为了复原出更加清晰的图像,采用由粗略到精细的多尺度交替迭代框架构建图像金字塔。在图像单一尺度方面,首先提取出图像中具有强边缘结构的显著性区域,并对其施加l_(0)范数约束,提出显著映射先验;将显著性映射先验和最大后验概率相结合并引入传统图像去模糊模型中,构造出点扩散函数估算模型,利用半二次分裂算法解决模型的非凸问题;对点扩散函数进行复原时,利用点扩散函数相似度的变化量限制每个尺度中的过渡迭代;对模糊图像和最终估计的点扩散函数进行非盲解卷积,获得复原图像。实验结果表明:与现有的主流去模糊算法相比,新算法在合成数据集和真实数据集中都可以有效抑制振铃和伪影现象,得到了很好的视觉体验,且评价指标均优于对比算法,同时大大缩减了复原时间。 展开更多
关键词 多尺度图像 显著边缘结构 点扩散函数 半二次分裂算法 点扩散函数相似度
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