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CONVERGENCE RATE OFDISTRIBUTIONS OF TRIMMED SUMS

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Chinese Annals of Mathematics,Series B 1996年第3期17卷 349-364页

作者： qi yongcheng CHENG SHIHONG(Department of Probability & Statistics, Beijing University, Beijing 100871, China) BEIJING UNIV DEPT PROBABIL & STATBEIJING 100871PEOPLES R CHINA

The authors first derive the normal expansion of the joint density function of two orderstatistics from the uniform distribution and then, using the approximation, establish a wayto estimate the normal convergence rate for trimmed sums. For applications, the convergencerates for the intermediately trimmed sums and heavily trimmed surns are found out.

关键词： Trimmed sum Order statistics Convergence rate Normal approximation

ON THE ONE-SIDED LOGARITHMIC LAW FOR ARRAYS

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Systems Science and Mathematical Sciences 1999年第2期12卷 123-132页

作者： qi yongcheng(Department of Probability and Statistics, Peking University, Beijing 100871, China) 北京大学概率统计系北京

This paper studies the one-sided logarithmic law for arrays of independent random variables and derives the necessary and sufficient condition for it in the case where the random variables are lid.

关键词： Logarithmic law array of random variables.

LIMIT LAWS OF LIFETIME FOR A CONSECUTIVE K-WITHIN-M-OUT-OF-N SYSTEM

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Systems Science and Mathematical Sciences 1994年第1期7卷 82-88页

作者： qi yongcheng(Department of Probobility and Statistics, Peking University, Beijing 100871, China)

ＬＩＭＩＴＬＡＷＳＯＦＬＩＦＥＴＩＭＥＦＯＲＡＣＯＮＳＥＣＵＴＩＶＥＫ－ＷＩＴＨＩＮ－Ｍ－ＯＵＴ－ＯＦ－ＮＳＹＳＴＥＭ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂｏｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ... 详细信息

ＬＩＭＩＴＬＡＷＳＯＦＬＩＦＥＴＩＭＥＦＯＲＡＣＯＮＳＥＣＵＴＩＶＥＫ－ＷＩＴＨＩＮ－Ｍ－ＯＵＴ－ＯＦ－ＮＳＹＳＴＥＭ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂｏｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ...

关键词： Limit types reliability consecutive k-within-m-out-of-n system.

A　SIMPLE　ESTIMATOR　FOR　AN　EXPONENTIAL　TAIL　COEFFICIENT

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Systems Science and Mathematical Sciences 1996年第2期9卷 151-156页

作者： qi yongcheng(Department of Probability and Statistics, Peking University, Beijing 100871, China) 北京大学概率统计系北京

ＡＳＩＭＰＬＥＥＳＴＩＭＡＴＯＲＦＯＲＡＮＥＸＰＯＮＥＮＴＩＡＬＴＡＩＬＣＯＥＦＦＩＣＩＥＮＴＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒ... 详细信息

ＡＳＩＭＰＬＥＥＳＴＩＭＡＴＯＲＦＯＲＡＮＥＸＰＯＮＥＮＴＩＡＬＴＡＩＬＣＯＥＦＦＩＣＩＥＮＴＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉｊｉｎｇ１００８７...

关键词： Exponential tail regular variation estimator.

THE WEAK LAW OF LARGE NUMBERS WHEN EXTREME TERMS ARE EXCLUDED FROM SUMS

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Systems Science and Mathematical Sciences 1996年第1期9卷 83-92页

作者： qi yongcheng(Department of Probability and Statistics, Peking University,Beijing 100871,China) 北京大学概率统计系北京

ＴＨＥＷＥＡＫＬＡＷＯＦＬＡＲＧＥＮＵＭＢＥＲＳＷＨＥＮＥＸＴＲＥＭＥＴＥＲＭＳＡＲＥＥＸＣＬＵＤＥＤＦＲＯＭＳＵＭＳ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ... 详细信息

ＴＨＥＷＥＡＫＬＡＷＯＦＬＡＲＧＥＮＵＭＢＥＲＳＷＨＥＮＥＸＴＲＥＭＥＴＥＲＭＳＡＲＥＥＸＣＬＵＤＥＤＦＲＯＭＳＵＭＳ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ...

关键词： Weak law of large numbers trimmed sums order statistics.

STRONG LAWS OF LIFETIME FOR A CONSECUTIVE K-OUT-OF-N: F SYSTEM

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Systems Science and Mathematical Sciences 1994年第2期7卷 121+123-127页

作者： qi yongcheng(Department of Probability and Statistics, Peking Universitg, Beijing 100871, China)

ＳＴＲＯＮＧＬＡＷＳＯＦＬＩＦＥＴＩＭＥＦＯＲＡＣＯＮＳＥＣＵＴＩＶＥＫ－ＯＵＴ－ＯＦ－Ｎ：ＦＳＹＳＴＥＭ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，Ｐｅｋｉｎ... 详细信息

ＳＴＲＯＮＧＬＡＷＳＯＦＬＩＦＥＴＩＭＥＦＯＲＡＣＯＮＳＥＣＵＴＩＶＥＫ－ＯＵＴ－ＯＦ－Ｎ：ＦＳＹＳＴＥＭ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｏｂａｂｉｌｉｔｙａｎｄＳｔａｔｉｓｔｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｇ，Ｂｅｉｊｉ...

关键词： Strong limit law consecutive k-out-of-n:F system.

LIMIT　THEOREMS　FOR　SUMS　AND　MAXIMA　OF　MIRWISE　NEGATIVE　QUADRANT　DEPENDENT　RANDOM　VARIABLES

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Systems Science and Mathematical Sciences 1995年第3期8卷 249-253页

作者： qi yongcheng(Institute of Systems Science, Academia Sinica, Beijing 100080, China)

ＬＩＭＩＴＴＨＥＯＲＥＭＳＦＯＲＳＵＭＳＡＮＤＭＡＸＩＭＡＯＦＭＩＲＷＩＳＥＮＥＧＡＴＩＶＥＱＵＡＤＲＡＮＴＤＥＰＥＮＤＥＮＴＲＡＮＤＯＭＶＡＲＩＡＢＬＥＳ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍ... 详细信息

ＬＩＭＩＴＴＨＥＯＲＥＭＳＦＯＲＳＵＭＳＡＮＤＭＡＸＩＭＡＯＦＭＩＲＷＩＳＥＮＥＧＡＴＩＶＥＱＵＡＤＲＡＮＴＤＥＰＥＮＤＥＮＴＲＡＮＤＯＭＶＡＲＩＡＢＬＥＳ￥ＱＩＹｏｎｇｃｈｅｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，Ａｃａｄｅｍｉａ...

关键词： Partial sums and maxima pairwise negative quadrant dependent randomvariables.

Discussion on paper‘On studying extreme values and systematic risks with nonlinear time series models and tail dependence measures’by Zhengjun Zhang

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Statistical Theory and Related Fields 2021年第1期5卷 37-37页

作者： yongcheng qi Department of Mathematics and Statistics University of Minnesota DuluthDuluthMNUSA

I would like to take this opportunity to congratulate Zhengjun for his continuing contribution to extremevalue statistics in recent *** this review paper,some fundamental theories on univariate extremes and multivariate extremes are introduced,and recent developments on extremes from some structured stochastic processes are also given.

关键词： extreme nonlinear stochastic

地震激励下储罐内液体的减晃试验研究及有限元分析

维普期刊数据库评论

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维普期刊数据库

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振动与冲击 2017年第2期36卷 190-195页

作者：祁永成邱洪兴马涌泉东南大学土木工程学院南京210096

为了避免因液体晃动过大而引起的储罐"象足"型失稳破坏,采用减晃板作为抑晃装置并对其进行了减晃优化设计。分别采用缩尺模型试验(缩尺比1∶30)和有限元分析等手段对有、无安装减晃板的储罐内的液体晃动波高、罐底剪力及罐壁压应力等关... 详细信息

为了避免因液体晃动过大而引起的储罐"象足"型失稳破坏,采用减晃板作为抑晃装置并对其进行了减晃优化设计。分别采用缩尺模型试验(缩尺比1∶30)和有限元分析等手段对有、无安装减晃板的储罐内的液体晃动波高、罐底剪力及罐壁压应力等关键指标进行了实测和仿真模拟。研究结果表明:关键指标的模拟值与实测值较为接近,进而验证了储罐减晃有限元分析的可靠性;当减晃板在距液面0.125倍~0.225倍的储罐高度且其宽度在0.15倍的储罐半径附近时,减晃板对储液晃动波高、罐底剪力及罐壁压应力都具有较好的抑制效果;减晃优化设计后,"象足"失稳区(接近罐底处)的罐壁压应力峰值得到了较为显著的抑制。

关键词：立式储罐地震激励减晃板模型试验有限元