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A TECHNO- ECONOMIC ANALYSIS OF COATING SEQUNCE OF "INTERNAL COATING FIRST" AND "EXTERNAL COATING FIRST"FOR PIPELINES OF WENGT
输气管道防腐“先内”与“先外”工艺技术经济分析

HOU Zhaoyong China Petroleum Zibo Coating Engineering Co,LTD,Zibo,
侯昭勇

腐蚀科学与防护技术 , 2003,
Abstract: The article is about the techno-economic feasibility study of a debate on that either the so called"internal coating first" or "the external coating first" is the resonable sequence for coating processes of pipelines.As it is known that firstly applying the internal coating may provide a good feature of reducing resistance of the pipeline interior.A preliminary calculation is conducted to reveal the cost difference between the two sequences of coating systems which may be adopted for the construction of the West-East natural gas transmission pipeline.At the same time,the article puts forward advices about the coating sequence.
LIFE PREDICTION OF HIGH TEMPERATURE STRUCTURALCOMPONENT BY STRAIN RANGE PARTITIONING
LIFE PREDICTION OF HIGH TEMPERATURE STRUCTURAL COMPONENT BY STRAIN RANGE PARTITIONING

Author M Miyahara,K Tokimasa Corporate Research & Development Laboratories,Sumitomo Metal Industries,Ltd,Amagasaki,Japan,

金属学报(英文版) , 1999,
Abstract: The s recent works on the improvement of the Strain Range Partitioning(SRP) method and its application to the life prediction of high temperature structural components are summarized. Examined components are divided into three groups, that is, components in the steel production plants, in the automobile and in the fossil power plants. Based on the results of the inelastic analysis and the creepfatigue properties of the material, which were obtained by IJ(=PP,PC, CP, CC) tests, the effects of the material properties, operating conditions and configuration of components were quantitatively evaluated to select the most effective measures for the thermal fatigue life extension. The SRP has been successfully applied until now to the life prediction and extension of the actual structural components subjected to thermal cycling by the s.
THE RESEARCH OF THE ORIGIN OF CARBON DIOXIDE IN ASSOCIATED GAS OF DQAING PLACANTICLINE
大庆长垣伴生气中二氧化碳的成因研究

Exploration,Development Research Institute of Daqing Oilfield Company Ltd,Daqing,China,Jilin University,Changchun,China,Natural Gas Branch of Daqing Oilfield Company Ltd,Daqing,China,
[]郭占谦
,[]王连生,[]刘立,[]马志红,[]迟东辉

天然气地球科学 , 2006,
Abstract: 与20世纪80年代相比。大庆长垣伴生气中CO2含量增加了约一个数量级,2003年伴生气中CO2的含量(总外输)已达2.87%,并且CO2的含量有继续升高趋势。通过对伴生气3个样品的CO2碳同位素的测定,其占δ^13C co2值均大于+3‰,与徐家围子地区幔源CO2的地球化学特征有明显的差异。认为其成因应属碳酸盐岩的热变质成因,因为松辽盆地的沉积地层为陆相沉积。不含有碳酸盐岩地层。伴生气中CO2很可能是由盆地基底的石炭二叠系碳酸盐岩热变质作用的产物。
THE DISCUSSION OF THE ORIGIN OF SULFURETED HYDROGEN IN ASSOCIATED GAS OF DAQING PLACANTICLINE
大庆油田伴生气中硫化氢成因的探讨

Jilin University,Changchun,China,Exploration,Development Research Institute of Daqing Oilfield Company Ltd,Daqing,China,Natural Gas Branch of Daqing Oilfield Company Ltd,Daqing,China,
[]王连生
,[]刘立,[]郭占谦,[]马志红,[]迟东辉

天然气地球科学 , 2006,
Abstract: 大庆长垣在20世纪80年代以前伴生气中基本不舍H2S,90年代以后发现油田伴生气中含有H2S,到2002年H2S含量已超过200mg/m^3(总外输),腐蚀油气管道的现象时有发生。对取自大庆长垣的8个样品(H2S气体和FeS粉末)进行了硫同位素分析,结果显示占δ^34S值在+12.73‰~+16.10‰之间,认为H2S成固与生物作用关系不大,其很可能是松辽盆地基底石炭一二叠系中硫酸盐热化学还原作用(TSR)所生成。
Analysis of a Dynamic Gain Equalizer Based on Liquid Crystal Tunable Filter Technology
基于液晶可调谐滤波技术的动态增益均衡器研究

(Wuhan Research Institute of Posts,Telecommunications Accelink Technologies Co,LTD,Wuhan,
吴晓平
,胡强高,许远忠

光子学报 , 2005,
Abstract: 提出了一种基于液晶技术的新型可调谐滤波器结构,详细介绍了这种新型液晶可调谐滤波器的结构及其工作原理,用琼斯矩阵法推导出其光传输矩阵,得出了其光透过率表达式,并在数值上进行了仿真,得出了其幅度与相位的调制特性.同时分析了采用这种液晶可调谐滤波器八级级联组成动态增益均衡器的遗传算法优化仿真结果.利用优化得出的参数值,对该动态增益均衡器进行了实验,得出了DGE完整的光增益透过谱,实验结果与理论分析相吻合.
Automatic Adjust Light Systems Based on Combined Average Gray with Peak Gray
基于平均和峰值灰度加权的自动调光系统

Guangdong Nortel Telecommunications Equipment Co Ltd,Guangzhou,
苏宏武
,杨小君,李哲,郝伟,刘刚

光子学报 , 2006,
Abstract: 介绍了在CCD高速电视测量仪系统中,利用电子快门和可变光阑有机结合,在运动控制卡控制下实现自动调光,扩大了调光的动态范围·采用了平均灰度和峰值灰度加权的办法来获取反馈信号,有效的解决不同背景下自调光系统的适应性·提出了基于二次函数的调光反馈量计算方法,提高了调光过程中的收敛速度,同时也保证了系统有较小的超调量·
The New Geography of Science: UK Research and International Collaboration
科学新格局:英国科研及其国际合作

Jonathan Adams,James Wilsdon Evidence Ltd,Clarendon Road,Leeds LS DF,UK,
Jonathan Adams
,James Wilsdon

科学观察 , 2007,
Abstract: International collaboration provides access to research investments made by other leading nations. Collaborative research is often highly innovative and has exceptional impact. The UK has had strong links with the USA and European countries, where there is a shared culture or language. The compass of research and innovation is swinging more and more strongly to the east. Serendipity is not enough to address all the opportunities and will be wholly inadequate for the UK's key interface with India and with China, the fastest growing science and technology-base economies in the world. There is a need to analyze the UK's present links to its new partners to understand how collaboration with China works and to establish models of good practice.
Patterns of International Collaboration for the UK and Leading Partners
英国国际合作格局

Jonathan Adams~ Karen Gurney Stuart Marshall Evidence Ltd,LEEDS LS DF,The United Kingdom,
Jonathan Adams
,Karen Gurney,Stuart Marshall

科学观察 , 2007,
Abstract: Patterns of international collaboration for the UK and leading partners are described by bibliometrical methods.The data analysed in this report are records of research publications,their authors' location and their subsequent citations by later publications.Data cover:nine countries - UK,USA,Canada,France,Germany,Japan,Australia,China and India;seven research fields-clinical sciences,health and related subjects,biological sciences,environmental sciences, mathematics,physical sciences,and engineering;two time periods - 1996-2000 and 2001-2005.Results show that the importance of international collaboration within countries' output has increased;for the UK the share of international collaboration has increased relative to domestic volume more rapidly than for other G7 economies;the UK retains a greater share of USA collaboration than any country except Germany;the average impact of internationally co-authored work is significantly higher than the overall average;the UK has more collaborative papers with China than any other EU partner.
Dynamic Load-Balancing Strategy for Content Delivery Network
适用于内容分发网络的动态负载均衡策略

XU Wei-Dong,WANG Kang Neusoft Gold Abacus software Ltd,Chongqing,
徐卫东
,王康

计算机科学 , 2005,
Abstract: In the article the theory of Content Delivery Network and Load-Balancing has been introduced. At the same time some limitations of Load-Balancing algorithm and BP neural network have been analyzed,based on that, theory of neural network is implied in the Load-Balancing of the network,Load-Balancing strategy for Content Deliv- ery Network and its merits based on Improved BP algorithm have been put forward.
Adaptive Hausdorff Distance Based on Similarity Weighting
基于相似度加权的自适应HD算法

HUANG Hua YAN Kai QI ChunSchool of Electronics,Information Engineering,Xi an Jiaotong University,Xi an Xi an New Postcom Equipment Co,Ltd,Xi an,
黄华
,颜恺,齐春

自动化学报 , 2009,
Abstract: Hausdorff distance (HD) is a popular measure between two sets of points, and has been widely used in object matching, tracking and recognition. Based on a thorough analysis of the traditional HD and its improved variants, a new adaptive Hausdorff distance based on similarity weighting (Adaptive Hausdorff distance, AHD) is proposed. The AHD uses the number of samples which have the minimum distance to a given point in the other set as the similarity measure, and rejects those relatively large minimum distances due to their marginal influence on matching evaluation. In addition, the weighting factor is adaptively adjusted according to its minimum distance of a point to a set. Furthermore, the robustness and accuracy are well balanced by using a subset of minimum distances and weighted averaged similarity measure. Experiments show that our proposed AHD has good performance in terms of matching accuracy, and is robust to random noise and occlusion.
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