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对称四极电测深的正演滤波系数

物探与化探 1985年第6期 421-425页

作者：李金铭赵改善武汉地质学院北京研究生部

本文介绍了计算对称四极电测深滤波系数的最小二乘法,并给出了两组偏心率(MN/AB)分别为1/8和1/5的正演滤波系数.取样间隔都为0.6,前者共15个系数,后者共13.系数.本文还说明了滤波器的精度和考虑测量极距大小的必要性.

关键词：对称四极正演 MN 偏心率滤波系数电测深

Effects of low molecular weight heparin on tumor-endothelium interactions and its mechanism

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Effects of low molecular weight heparin on tumor-endothelium...

中国药理学会第十次全国学术会议

作者： PAN Yan,LI Xue-jun (Department of Pharmacology,school of Basic Medical,Peking University Health Science Center,beijing 100191)

Metastasis is the main obstacle of cancer *** prevention would be the key factor in cancer *** patients who had been treated with low molecular weight heparin(LMWH) for their thrombosis had a significantly improved 3.to 6 month *** studies showed that LMWH had antimetastasis *** were reports that LMWH could protect endothelial cells(EC) from being activated and inhibit the expression of cell adhesion molecules when it was used as an anticoagulant in patients with coronary artery *** by far,there are still no definite report concerning the mechanisms of LMWH on tumor and metastasis. Here we report that the inhibitory effects of LMWH on tumor cells adhesion to and migration through endothelial monolayers when human umbilical vein endothelial cells(HUVECs) were pre-incubated with LMWH;the influence of LMWH on HUVECs’ proteome by proteomics methods;the possible mechanisms of LMWH on tumor-endothelium interaction from the role of cytoskeletal vimentin intermediate filament,one of the difference proteins in HUVECs influenced by LMWH and which accumulated in bundles to the perinuelear *** confocal microscopy, detect the influence of LMWH on HUVECs intracellular calcium ion([Ca]) after stimulation by PC-3.*** surface plasmon resonance,we found that there was direct interaction between LMWH and ***,the underlying mechanisms of LMWH on anti-tumor and anti-metastasis may be related to LMWH’s interaction with and regulation on vimentin in the HUVECs.

关键词： Low molecular weight heparin Human umbilical cord vascular endothelial cells Adhesion Transendothelial migration Proteomics Vimentin

阳离子聚季铵盐接枝共聚物最佳接枝条件的研究

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湘潭矿业学院学报 1995年第2期10卷 46-50页

作者：夏畅斌黄念东何绪文北京中矿北研部

本文完成了二甲胺和表氯醇所得到的高聚物与丙烯酰胺进行接枝共聚。研究了接枝共聚的机理及接枝条件对共聚物性能的影响。图４，参８。

关键词：接枝季铵盐高聚物

试析《道德经》对武术套路教练员专业素质培养的启示

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搏击(武术科学) 2009年第8期6卷 50-51页

作者：范延波刘媛叶伟首都体育学院研究生部

《道德经》是中国古代一部重要的哲学巨作,武术套路教练员在现代竞技武术领域中扮演着十分重要的角色,提高教练员素质已成为世界各国提高竞技体育科学化训练水平的主要途径。文章运用文献资料法、逻辑分析法等研究方法,通过借鉴《道德... 详细信息

《道德经》是中国古代一部重要的哲学巨作,武术套路教练员在现代竞技武术领域中扮演着十分重要的角色,提高教练员素质已成为世界各国提高竞技体育科学化训练水平的主要途径。文章运用文献资料法、逻辑分析法等研究方法,通过借鉴《道德经》的教育和管理思想,阐述从中得到的提高武术套路教练员专业素质的一些启示,从而促进我国武术事业的发展,同时也为我国体育教练员专业素质的培养提供启迪和参考。

关键词：《道德经》武术套路教练员素质

UPPER BOUND LIMIT ANALYSIS OF SLOPE STABILITY USING ELEMENT INTEGRATION METHOD

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UPPER BOUND LIMIT ANALYSIS OF SLOPE STABILITY USING ELEMENT ...

中日岩土工程学术会议

作者： Q. XU and Y. LU Associate Professor Department of Hydraulic Engineering Tsinghua University beijing 100084 P. R. China graduate student Department of Hydraulic Engineering Tsinghua University beijing 100084 P. R. China

＜正＞ Element integration method provides a general approach for slope stability analysis based on upper bound limit theorem in plasticity. Small triangle elements are used to discretize the slope region. A kinematically admissible velocity field is supposed independent of the element mesh. Work done by the body forces, surface loads, as well as internal energy dissipations within an element is conveniently obtained under such a failure mechanism. The whole energy can be calculated through energy integration among all the elements. The safety factor can therefore be solved from the upper bound limit theorem, and its minimum value can be obtained from optimization method. For single-wedge failure mechanism, such as plane slip surface, or log-spiral slip surface, the validity of this method has been verified from two typical examples.

关键词： Slope Stability Limit Analysis Upper Bound Theorem Element Nonlinear Optimization

Next-Day Electricity Price Forecasting Based on Support Vector Machines and Data Mining Technology

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Next-Day Electricity Price Forecasting Based on Support Vect...

第二十七届中国控制会议

作者： Li Jinying1,Li Jinchao2.1.Department of Economic Administration,North China Electric Power University,Baoding 071000,P.R.China 2.school of Business Administration,North China Electric Power University,beijing 102.06,P.R.China

With the development of power markets,the market clearing price(MCP) forecasting is becoming the basis of decision making for participants in electricity *** this paper the problem of modeling market clearing price forecasting in deregulated markets is *** electricity price forecasting with support vector machines based on data mining technology is *** price influential factors such as weather factors,day type,previous competitive load and recent days’s electricity price are considered in this *** on these influential factors,the training samples are formed,then using them to train the corresponding SVM forecasting ***,using the forecasting results which got by the upper four SVMs and real values of the forecasting days to train the No.5 SVM forecasting *** proposed algorithm is more robust and reliable as compared to traditional approach and neural *** performance of our proposed modeling approach has been tested using practical electricity market and compared with traditional neural *** satisfactory results with better generalization capability and lower prediction error can be obtained.

关键词： MCP forecasting Support vector machine Data mining Electricity market

Conjugacy Classes of Torsion in 4×4 Integral Symplectic Group

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Journal of Mathematical Research and Exposition 2008年第1期28卷 177-191页

作者： YANG Qing-jie Abstract A complete list of representatives of conjugacy classes of torsion in 4 x 4 integralsymplectic group is given in this paper. There are 55 distinct such classes and each torsionelement has order of 2. 3. 4, 5, 6, 8, 10 and 12. school of Information ~ Renmin University of China Beijing 100872 China

A complete list of representatives of conjugacy classes of torsion in 4×4 integral symplectic group is given in this paper. There are 55 distinct such classes and each torsion element has order of 2. 3. 4, 5, 6, 8, 1... 详细信息

关键词： integral symplectic group torsion symplectic group space symplectic direct sum quasi-direct sum palindromic monic polynomial symplectic complement.

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西北侏罗系煤成油研究中的煤田地质学方法

石油学报 1997年第4期18卷 14-18页

作者：胡社荣侯慧敏吴因业罗平中国矿业大学北京研究生部石油勘探开发研究院地质所

运用煤田地质学方法分析、研究了西北侏罗系盆地的煤沼沉积环境演化类型（以下简称煤沼演化类型），划分出：①没有发育湖相建造；②含煤建造上覆缺失湖相建造；③具有完整湖平面变化旋四层序的三种煤沼演化类型；研究了西北侏罗系含煤... 详细信息

运用煤田地质学方法分析、研究了西北侏罗系盆地的煤沼沉积环境演化类型（以下简称煤沼演化类型），划分出：①没有发育湖相建造；②含煤建造上覆缺失湖相建造；③具有完整湖平面变化旋四层序的三种煤沼演化类型；研究了西北侏罗系含煤盆地，尤其是第二和第三煤沼演化类型的煤显微组分组成和烃源岩的成熟度特征。根据西北侏罗系含煤盆地煤成油田形成和分布规律，依据煤沼演化类型、盆地沉积构造背景、有机岩组成特征等条件，提出了天山及其以北和塔里木周缘和祁连山两侧山前的前陆盆地等同沉积构造活动性较强的盆地是西北侏罗系煤成油勘探的有利区域，发育第一和第二煤沼演化类型的盆地及其伊犁和三塘湖盆地没有找到煤成油田的可能的看法。

关键词：煤成油盆地侏罗系煤田地质学油气勘探

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萃取法分离钒铬的竞争机制

过程工程学报 2018年第5期18卷 989-995页

作者：孙颖宁朋歌曹宏斌刘文昭天津大学化工学院天津300072 中国科学院过程工程研究所环境技术与工程研究部绿色过程与工程重点实验室北京市过程污染控制工程技术研究中心北京100190

采用伯胺萃取法分离钒铬,研究了不同Cr/V浓度比的钒铬溶液在一定初始pH值范围内的分离效果.结果表明,伯胺萃取法分离钒铬具有很好的选择性,V（V）和Cr（IV）的萃取率均随溶液初始pH值降低而上升,相同加酸比[H＋/V（Cr）摩尔比]下,钒铬... 详细信息

采用伯胺萃取法分离钒铬,研究了不同Cr/V浓度比的钒铬溶液在一定初始pH值范围内的分离效果.结果表明,伯胺萃取法分离钒铬具有很好的选择性,V（V）和Cr（IV）的萃取率均随溶液初始pH值降低而上升,相同加酸比[H＋/V（Cr）摩尔比]下,钒铬混合溶液中V（V）萃取率高于其单金属溶液的萃取率,Cr（IV）萃取率低于其单金属溶液的萃取率,且萃取率随时间延长先上升后下降.

关键词：钒铬萃取分离竞争