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用含量面积法确定深切割地区地球化学异常

西南师范大学学报（自然科学版） 2004年第5期29卷 867-869页

作者：陈聆魏友华郭科成都理工大学信息管理学院四川成都610059

地球化学异常下限的确定是勘察地球化学的一个基本问题.分形算法中的含量面积法是结合含量—面积模式和投影覆盖法的优势改进后产生的.用此方法对西藏恒星错工作区1∶5.000水系沉积物数据进行了处理,通过求分维数来圈定元素异常区,取得... 详细信息

地球化学异常下限的确定是勘察地球化学的一个基本问题.分形算法中的含量面积法是结合含量—面积模式和投影覆盖法的优势改进后产生的.用此方法对西藏恒星错工作区1∶5.000水系沉积物数据进行了处理,通过求分维数来圈定元素异常区,取得了较好效果.

关键词：含量面积法深切割地区地球化学异常下限维数分形

Isotope shift calculations for D lines of stable and short-lived lithium nuclei

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Chinese Physics B 2016年第11期25卷 194-198页

作者：余庚华赵朋义徐炳明杨维朱晓玲 School of information Science and engineering Chengdu University college of Physics and Electronic Science Hubei Normal University School of information Science and engineering Ocean University of China

The isotope shifts（TSs） for the 2s2S（1/2） to 2p2PJ（J = 1/2,3/2） transitions of the lithium nuclei including the stable and short-lived isotopes are calculated based on the multi-configuration Dirac-Hartree-Fock method and the relativistic configuration interaction *** results are in good agreement with the previous theoretical and experimental results within a deviation less than 0.05..The methods used here could be applied to the IS calculations for other heavier Li-like ions and few-electron systems.

关键词： nuclei lithium isotopes relativistic Hartree lived transitions Dirac deviation nucleus

Sliding Mode Control with Disturbance Observer for a Class of Nonlinear Systems

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International Journal of Automation and computing 2012年第5期9卷 487-491页

作者： Lei-Po Liu Zhu-Mu Fu Xiao-Na Song college of Electric and information engineering, Henan university of Science and technology, Luoyang 471003,{5. 1. college of Electric and information engineering Henan University of Science and Technology Luoyang 471003 China

This paper is concerned with the stabilization problem for a class of nonlinear systems with disturbance. The disturbance model is unknown and the first derivative of disturbance is bounded. Firstly, a general disturbance observer is proposed to estimate disturbance approximatively. Secondly, since the bound of the disturbance observer error is unknown, an adaptive sliding mode controller is designed to guarantee that the state of system asymptotically converges to zero and the unknown bound can be adjusted by an adaptive law. Finally, an example is given to illustrate the effectiveness of the proposed method.

关键词： Nonlinear systems disturbance observer adaptive sliding mode control derivative of disturbance asymptotic stability

Comparison of Hypolipidemic Effect of Refined Konjac Meal With Several Common Dietary Fibers and Their Mechanisms of Action

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Biomedical and Environmental Sciences 1997年第1期10卷 27-37页

作者： WU JIE AND PENG SHU-SHENG (Department of Nutrition and Food Hygiene, Nantong Medical college, Nantong City, 226001, Jiangsu, china Department of Nutrition and Food Hygiene, West china university of Medical Sciences,chengdu,{5., china) Department of Nutrition and Food Hygiene Nantong Medical College Jiangsu China.

The effects of RKM in comparison with pectin, algin and agar on lipid levels in serum and liver and on liver histopathology in rats were studied. In addition, the effects of all the tested materials on the composition and output of fecal bile acid were observed. All four kinds of dietary fiber were given at a level of 5. of diet to young male rats of Wistar strain fed on a lipid-rich diet contalning 5.% lard, 1% cholesteral and 0. 25.% cholate. All the dietary fibers tested have similar effects on serum lipid composition. In all groups, these substances prevent ed increases in total cholesterol in fasting serum, but the level of triglyceride was *** concentrations of totaI cholesterol and triglyceride in the liver were lower in the RKM group than in the control group and the other three groups. Hepatic histopathological exami nation also showed the most significant lipotropic effect in the RKM group. The daily output of fecal bile acids (CDCA+GDCA) was significantly increased in the four experimental groups than in the normal group and the control group. The increase of CDCA was more significant than GDCA, suggesting that the increase of fecal bile acids, especially CDCA, may be one of the mechanisms by which RKM and the other three dietary fibers exerts a hypocholesterolemic effect

关键词： acid Am Br Comparison of Hypolipidemic Effect of Refined Konjac Meal With Several Common Dietary Fibers and Their Mechanisms of Action CDCA

Review on abort trajectory for manned lunar landing mission

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Science china(Technological Sciences) 2010年第10期53卷 2691-2698页

作者： XI XiaoNing1, HUANG WenDe2 & WANG Wei2,3 1 college of Mechatronics engineering and Automation, National university of Defense technology, Changsha 410073, china 2 college of Aerospace and Material engineering, National university of Defense technology, Changsha 410073, china 3 School of Surveying and Spatial information System, university of New South Wales, Sydney, NSW 205., Australia 1. college of Mechatronics engineering and Automation National University of Defense Technology Changsha 410073 China2. College of Aerospace and Material Engineering National University of Defense Technology Changsha 410073 China3. School of Surveying and Spatial Information System University of New South Wales Sydney NSW 2052 Australia

Abort trajectory is a passage that ensures the astronauts to return safely to the earth when an emergency occurs. Firstly,the essential elements of mission abort are analyzed entirely based on summarizing the existing studies. Then,abort trajectory requirement and rational selection for different flight phases of typical manned lunar mission are discussed specifically. Considering a trade-off between the two primary constrains of an abort,the return time of flight and energy requirement,a general optimizing method for mission abort is proposed. Finally,some suggestions are given for china’s future manned lunar landing mission.

关键词： manned lunar landing mission abort trajectory design free return trajectory

Research and Application of the Fuzzy Control Used in the Wireless Illumination Measurement and Control System of the Greenhouse

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Research and Application of the Fuzzy Control Used in the Wi...

Complex transient dynamics of hidden attractors in a simple 4D system

2011 Chinese Control and Decision Conference（CCDC）

作者： Wu Li is with the School of information engineering,Southwest university of Science and technology,Mianyang,sichuan 621000{5..Liang Zhujun is with the college of Control engineering,chengdu university of information technology,chengdu,sichuan 610225.5..Zhang Chunfeng is with the School of information engineering,Southwest university of Science and technology,Mianyang,sichuan 621000{5..

Light is an indispensable energy condition for greenhouse crops manufacturing nutrients and keeping life activities,and it is the dominant factor of the greenhouse *** system give an example about the illumination demands of a common greenhouse crop tomatoes,design a greenhouse illumination wireless observe and control system which based on two dimension fuzzy control *** paper detailed description the hardware system,the lighting and fill-in light control theory,the design and implementation of the illumination fuzzy controller and its fuzzy control *** greenhouse illumination automatic control could be easily realized by use of look-up table for the fuzzy *** results show that this system is stable and meets the requirements of design.

关键词： Greenhouse Illumination Fuzzy-control

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Chinese Physics B 2015年第5期24卷 270-274页

作者：党小宇李春彪包伯成武花干 college of Electronic and information engineering Nanjing University of Aeronautics and Astronautics School of Electronic & information engineering Nanjing University of Information Science & Technology School of information Science and engineering Changzhou University School of Electronic and Optical engineering Nanjing University of Science and Technology

A simple four-dimensional system with only one control parameter is proposed in this paper. The novel system has a line or no equilibrium for the global control parameter and exhibits complex transient transition behaviors of hyperchaotic attractors, periodic orbits, and unstable sinks. Especially, for the nonzero-valued control parameter, there exists no equilibrium in the proposed system, leading to the formation of various hidden attractors with complex transient dynamics. The research results indicate that the dynamics of the system shows weak chaotic robustness and depends greatly on the initial states.

关键词： transient dynamics hidden attractor equilibrium

MMSE relay precoding schemes based on quantization error compensation for multi-relay system

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Science china(information Sciences) 2010年第12期53卷 2548-2556页

作者： LI Ting 1,2 & YANG LuXi 2 1 college of Communication and information engineering,Nanjing university of Posts and Telecommunications,Nanjing 210003,china 2 School of information Science and engineering,Southeast university,Nanjing 210096,china 1. college of Communication and information engineering Nanjing University of Posts and Telecommunications Nanjing 210003 China2. School of Information Science and Engineering Southeast University Nanjing 210096 China

In order to deal with the performance degradation resulting from the quantization error,this paper introduces the statistics of Grassmannian codebook's quantization error into relay precoding design for multirelay *** on the two-step MMSE optimization algorithm for relay precoding and receiver equalizing with full feedback under QoS requirements,we first propose a limited feedback two-step MMSE optimization scheme for relay precoding and receiver equalizing with quantization error compensation,and then we propose a limited feedback joint MMSE optimization scheme for relay precoding and receiver equalizing with quantization error compensation subject to a global power constraint at the output of *** results show that the proposed joint MMSE optimization scheme with quantization error compensation has a much lower bit-error rate than the two-step MMSE optimization scheme with quantization error compensation and the joint MMSE optimization scheme without quantization error compensation.

关键词： multi-relay precoding limited feedback minimum mean square error

The structural analysis of fuzzy measures

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Science china(information Sciences) 2011年第1期54卷 38-50页

作者： ZHANG Ling1,ZHANG Bo2 & ZHANG YanPing1 1 Computer Science college,Anhui university,Hefei 230039,china 2State Key Lab of Intelligent technology & Systems Tsinghua National Lab for information Science & technology information Science & technology college,Computer Science & technology,Tsinghua university,Beijing 100084,china 1. Computer Science college Anhui University Hefei 230039 China2. State Key Lab of Intelligent Technology & Systems Tsinghua National Lab for information Science & technology information Science & technology college Computer Science & Technology Tsinghua University Beijing 100084 China

From quotient space based granular computing theory we explore the fuzzy measures of fuzzy sets. Based on the structural analysis of fuzzy sets,we present an"isotropism"*** this assumption we achieved the following insights:(1)the uniqueness of a fuzzy measure being isotropic on a finite complete semi-ordered set;(2)the necessary and suffcient condition of the isomorphism for fuzzy measure functions in fuzzy mathematics;(3)the necessary and suffcient condition that fuzzy measures have fuzzy and granular monotonicity;(4)under a certain assumption,the analytic expression for fuzzy *** results clarify the relationship between fuzzy measures and granular computing,reveal the essence of fuzzy measures,and provide a simple way of constructing fuzzy measures.

关键词： quotient space fuzzy set fuzzy measure rough set structural analysis