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MEASURING PRECISION OF INDUCED POLARIZATION METHOD

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中国有色金属学会会刊：英文版 1994年第4期4卷 1-6页

作者： He,Jishan(central south university of Technology,Changsha 410083)

ＭＥＡＳＵＲＩＮＧＰＲＥＣＩＳＩＯＮＯＦＩＮＤＵＣＥＤＰＯＬＡＲＩＺＡＴＩＯＮＭＥＴＨＯＤ￥Ｈｅ，Ｊｉｓｈａｎ（ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ，Ｃｈａｎｇｓｈａ４１００８３）Ａｂ... 详细信息

ＭＥＡＳＵＲＩＮＧＰＲＥＣＩＳＩＯＮＯＦＩＮＤＵＣＥＤＰＯＬＡＲＩＺＡＴＩＯＮＭＥＴＨＯＤ￥Ｈｅ，Ｊｉｓｈａｎ（ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ，Ｃｈａｎｇｓｈａ４１００８３）Ａｂｓｔｒａｃｔ：Ｏｎｔｈｅｐｒｅｍｉ...

关键词： measuring precision induced polarization method (IP) dual-frequency IP frequency domain IP time IP

ESTABLISHMENT　AND　APPLICATIONS　OF　MATHEMATICAL　MODELS　FOR　CONCENTRATION　DISTRIBUTIONS　IN　Mo－Fe－Ni－Co　DIFFUSION　QUARTERNARY　（Ⅰ）　Establishment　of　Mathematical　Models

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中国有色金属学会会刊：英文版 1996年第3期6卷 79-85,118页

作者： Gan Weiping(Department of Materials Science and Engineering, central south university of Technology, Changsha 410083) Xu Xingyao (Department of Applied Mathematics and Applied Softwares, central south university of Technology, Changsha 410083) Department of Materials Science and Engineering Central South University of Technology Changsha 410083 China Department of Applied Mathematics and Applied Softwares Central South University of Technology Changsha 410083 China

ＥＳＴＡＢＬＩＳＨＭＥＮＴＡＮＤＡＰＰＬＩＣＡＴＩＯＮＳＯＦＭＡＴＨＥＭＡＴＩＣＡＬＭＯＤＥＬＳＦＯＲＣＯＮＣＥＮＴＲＡＴＩＯＮＤＩＳＴＲＩＢＵＴＩＯＮＳＩＮＭｏ－Ｆｅ－Ｎｉ－ＣｏＤＩＦＦＵＳＩＯＮＱＵＡＲＴＥＲＮＡ... 详细信息

ＥＳＴＡＢＬＩＳＨＭＥＮＴＡＮＤＡＰＰＬＩＣＡＴＩＯＮＳＯＦＭＡＴＨＥＭＡＴＩＣＡＬＭＯＤＥＬＳＦＯＲＣＯＮＣＥＮＴＲＡＴＩＯＮＤＩＳＴＲＩＢＵＴＩＯＮＳＩＮＭｏ－Ｆｅ－Ｎｉ－ＣｏＤＩＦＦＵＳＩＯＮＱＵＡＲＴＥＲＮＡＲＹ（Ⅰ）Ｅｓｔａｂｌｉｓｈｍｅｎ...

关键词： Mo-Fe-Ni-Co diffusion quarternary mathematical models concentration distribution B-type spline functions

CAVABILITY CLASSIFICATION MODEL IN BLOCK CAVING

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中国有色金属学会会刊：英文版 1996年第3期6卷 5-9页

作者： Wang Liguan(Deportment of Resources Exploitation Engineering,central south university of Technology, Changsha 410083) Department of Resources Exploitation Engineering Central South University of Technology Changsha 410083 China

ＣＡＶＡＢＩＬＩＴＹＣＬＡＳＳＩＦＩＣＡＴＩＯＮＭＯＤＥＬＩＮＢＬＯＣＫＣＡＶＩＮＧ￥ＷａｎｇＬｉｇｕａｎ（ＤｅｐｏｒｔｍｅｎｔｏｆＲｅｓｏｕｒｃｅｓＥｘｐｌｏｉｔａｔｉｏｎＥｎｇｉｎｅｅｒｉｎｇ，ＣｅｎｔｒａｌＳｏ... 详细信息

ＣＡＶＡＢＩＬＩＴＹＣＬＡＳＳＩＦＩＣＡＴＩＯＮＭＯＤＥＬＩＮＢＬＯＣＫＣＡＶＩＮＧ￥ＷａｎｇＬｉｇｕａｎ（ＤｅｐｏｒｔｍｅｎｔｏｆＲｅｓｏｕｒｃｅｓＥｘｐｌｏｉｔａｔｉｏｎＥｎｇｉｎｅｅｒｉｎｇ，ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒｓｉｔｙｏｆＴｅ...

关键词： block caving cavability classification of orebody rock mass quality estimation

INTELLIGENT CONTROL FOR ELECTRO-HYDRAULIC PROPORTIONAL POSITION SERVO SYSTEM

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中国有色金属学会会刊：英文版 1996年第2期6卷 132-137页

作者： Luo An Gui Weihua (Department of Automatic Control Engineering,central south university of Technology, Changsha 410083) Department of Automatic Control Engineering Central South University of Technology Changsha 410083 China

ＩＮＴＥＬＬＩＧＥＮＴＣＯＮＴＲＯＬＦＯＲＥＬＥＣＴＲＯ－ＨＹＤＲＡＵＬＩＣＰＲＯＰＯＲＴＩＯＮＡＬＰＯＳＩＴＩＯＮＳＥＲＶＯＳＹＳＴＥＭＬｕｏＡｎ；ＧｕｉＷｅｉｈｕａ（ＤｅｐａｒｔｍｅｎｔｏｆＡｕｔｏｍａｔｉｃＣｏ... 详细信息

ＩＮＴＥＬＬＩＧＥＮＴＣＯＮＴＲＯＬＦＯＲＥＬＥＣＴＲＯ－ＨＹＤＲＡＵＬＩＣＰＲＯＰＯＲＴＩＯＮＡＬＰＯＳＩＴＩＯＮＳＥＲＶＯＳＹＳＴＥＭＬｕｏＡｎ；ＧｕｉＷｅｉｈｕａ（ＤｅｐａｒｔｍｅｎｔｏｆＡｕｔｏｍａｔｉｃＣｏｎｔｒｏｌＥｎｇｉｎｅｅｒｉｎｇ，...

关键词： intelligent control pole placement digital flow compensation electrohydraulic proportionalControl

Survival probability and ruin probability of a risk model

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Applied Mathematics(A Journal of Chinese Universities) 2008年第3期23卷 256-264页

作者： LUO Jian-hua College of Science,central south university of Forestry and Technology,Changsha 410004,China Institute of Statistics,central south university of Forestry and Technology,Changsha 410004,China. College of Science Central South University of Forestry and Technology Changsha China Institute of Statistics Central South University of Forestry and Technology Changsha China

In this paper, a new risk model is studied in which the rate of premium income is regarded as a random variable, the arrival of insurance policies is a Poisson process and the process of claim occurring is p-thinning process. The integral representations of the survival probability are gotten. The explicit formula of the survival probability on the infinite interval is obtained in the special casc cxponential *** Lundberg inequality and the common formula of the ruin probability are gotten in terms of some techniques from martingale theory.

关键词： risk model thinning process survival probability martingale ruin probability integral representation

MASS TRANSFER TO LIQUID-LIQUID INTERFACE

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Acta Metallurgica Sinica(English Letters) 1996年第2期9卷 151-156页

作者： LI Xinhai YIN Zhoulan(central-south university of Technology,Changsha 410083,China) central-south Univ of Technology Changsha China

Experiments have been done on mass transfer to a liquid-liquid interface on which inert gas bubbles are *** simulate the pyrometallurgy system of melten slag-metal(or matte),aqueous solution-mercury(or zinc amalgam) system was *** mass transfer coefficients of indicator ions as a function of bubble parameters have been *** experimental results show satisfactory agreement with the mass transfer model proposed Previously.

关键词： mass transfer gas bubble liquid-liquid interface

The Experimental Results of Pb and Zn Partitioning between Fluid and Melt, and Their Application to the Research on Metallogeny

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Acta Geologica Sinica(English Edition) 1989年第2期63卷 189-196页

作者： Peng Shenglin Department of Geology, central-south university of Technology, Changsha, Hunan Province Department of Geology Central-South University of Technology Changsha Hunan Province

Three logarithmic linear equations between D_(Me)^(V/L) and [m_(NaCl)], and the relationship of D_(Me)^(V/L) versus F/Cl or K/Na mole ratios have been established by the experiments of the partitioning of Pb and Zn between granitic silicate melt and aqueous fluid. These results have been used to quantitatively study some essential problems, such as the possibility and degree of Pb-Zn mineralization in the system of granitic magma and hydrothermal fluid, and the influence of the relative contents of alkali and volatiles on the Pb-Zn mineralization in the same system. Some new points have been put forward in this paper.

关键词： and Their Application to the Research on Metallogeny The Experimental Results of Pb and Zn Partitioning between Fluid and Melt Zn Pb

Upgrading graphite by flotation at Bogala Mines in Sri Lanka

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Journal of central south university 2001年第3期13卷 193-196页

作者： M.R.Salgado (central south university, Changsha 410083, China) central south university Changsha China

Graphite is naturally floatable due to its hydrophobic pro pe rty and also soft and smears on other gangue particles, rendering the gangue mor e or less floatable too. Due to this reason it is important to concentrate on ar eas such as suitable flotation reagents, depression agents, pH modifiers, and pa rticle size to be fed during the process. The paper surveys and analyses the sui table particle size to be fed to achieve high-grade concentrate. According to t h e work carried out the author suggested the ideal cost effective flotation f low sheet for improved results at Bogala Mines in Sri Lanka.

关键词： graphite flotation process reagent carbon percentage

MOTION ANALYSIS AND DESIGN OF ACCUMULATOR FOR HYDRAULIC ROCK DRILL

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中国有色金属学会会刊：英文版 1996年第2期6卷 148-151页

作者： Liu Shixun(College of Mechanical and Electrical Engineering, central south university of Technology, Changsha 410083) College of Mechanical and Electrical Engineering Central South University of Technology Changsha 410083 China

ＭＯＴＩＯＮＡＮＡＬＹＳＩＳＡＮＤＤＥＳＩＧＮＯＦＡＣＣＵＭＵＬＡＴＯＲＦＯＲＨＹＤＲＡＵＬＩＣＲＯＣＫＤＲＩＬＬＬｉｕＳｈｉｘｕｎ（ＣｏｌｌｅｇｅｏｆＭｅｃｈａｎｉｃａｌａｎｄＥｌｅｃｔｒｉｃａｌＥｎｇｉｎｅｅｒｉ... 详细信息

ＭＯＴＩＯＮＡＮＡＬＹＳＩＳＡＮＤＤＥＳＩＧＮＯＦＡＣＣＵＭＵＬＡＴＯＲＦＯＲＨＹＤＲＡＵＬＩＣＲＯＣＫＤＲＩＬＬＬｉｕＳｈｉｘｕｎ（ＣｏｌｌｅｇｅｏｆＭｅｃｈａｎｉｃａｌａｎｄＥｌｅｃｔｒｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ，ＣｅｎｔｒａｌＳｏｕｔｈＵｎ...

关键词： hydraulic accumulator diaphragm service life stretching ratio parameter design,motion analvsis