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Acta Geologica Sinica(English Edition) 1988年第4期1卷 381-391页

作者： li shiruo china university of geosciences, wuhan, hubei china university of geosciences Wuhan Hubei

In the Indosinian period. the climate was scorching hot and the source of seawater was ample in hubeiand its neighbouring areas. so the basic conditions for the formation of evaporites were favourable. Under thisprerequisite. the reason why salt deposits occurring in some third-order tectonic units between the Jiangnanoldland-upwarped zone and the Dabashan upwarped zone differ in degree of development is mainly due to thetectonic factors during sedimentation. If favourable tectonic factors are present, large amounts or evaporiteswill form: on the contrary. they will not.

关键词： In

Solving A Kind of High Complexity Multi-Objective Problems by A Fast Algorithm

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wuhan university Journal of Natural Sciences 2003年第S1期8卷 183-188页

作者： Zeng San-you, Ding li-xin, Kang li-shanDepartment of Computer Science,china university of geosciences, wuhan 430074, hubei, china Department of Computer Science, Zhuzhou Institute of Technology , Zhuzhou 412008, Hunan, china State Key Laboratory of Software Engineering, wuhan university, wuhan 430072, hubei, china Department of Computer Science China University of GeoSciences Wuhan Hubei China Department of Computer Science Zhuzhou Institute of Technology Zhuzhou Hunan China State Key Laboratory of Software Engineering Wuhan University Wuhan Hubei China

A fast algorithm is proposed to solve a kind of high complexity multi-objective problems in this paper. It takes advantages of both the orthogonal design method to search evenly, and the statistical optimal method to speed up the computation. It is very suitable for solving high complexity problems, and quickly yields solutions which converge to the Pareto-optimal set with high precision and uniform distribution. Some complicated multi-objective problems are solved by the algorithm and the results show that the algorithm is not only fast but also superior to other MOGAS and MOEAs, such as the currently efficient algorithm SPEA, in terms of the precision, quantity and distribution of solutions.

关键词： evolutionary algorithms orthogonal design multi-objective optimization Pareto-optimal set

Evaluation Method of Web Site Structure Based on Web Structure Mining

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wuhan university Journal of Natural Sciences 2003年第3A期8卷 791-796页

作者： li Jun\|e 1 , Zhou Dong\|ru 2 1. Computer Center,wuhan university, wuhan 430072, hubei, china 2. School of Computer,wuhan university, wuhan 430072, hubei,china Computer Center Wuhan University Wuhan Hubei China School of Computer Wuhan University Wuhan Hubei China

The structure of Web site became more complex than before. During the design period of a Web site, the lack of model and method results in improper Web structure, which depend on the designer's experience. From the point of view of software engineering, every period in the software life must be evaluated before starting the next period's work. It is very important and essential to search relevant methods for evaluating Web structure before the site is completed. In this work, after studying the related work about the Web structure mining and analyzing the major structure mining methods (Page\|rank and Hub/Authority), a method based on the Page\|rank for Web structure evaluation in design stage is proposed. A Web structure modeling language WSML is designed, and the implement strategies for evaluating system of the Web site structure are given out. Web structure mining has being used mainly in search engines before. It is the first time to employ the Web structure mining technology to evaluate a Web structure in the design period of a Web site. It contributes to the formalization of the design documents for Web site and the improving of software engineering for large scale Web site, and the evaluating system is a practical tool for Web site construction.

关键词： web structure mining page\|rank web structure evaluation modeling language for web structure

The Application of Genetic Algorithms and Multidimensional Distinguishing Model in Forecasting and Evaluating Credits for Mobile Clients

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wuhan university Journal of Natural Sciences 2003年第2A期8卷 405-408页

作者： li Zhan, Xu Ji-shengSchool of Electronic Information, wuhan university, wuhan 430072, hubei, china Sch. of Electron. Info. Wuhan Univ. Wuhan 430072 China

To solve the arrearage problem that puzzled most of the mobile corporations, we propose an approach to forecast and evaluate the credits for mobile clients, devising a method that is of the coalescence of genetic algorithm and multidimensional distinguishing model. In the end of this paper, a result of a testing application in Zhuhai Branch, GMCC was provided. The precision of the forecasting and evaluation of the client’s credit is near 90%. This study is very significant to the mobile communication corporation at all levels. The popularization of the techniques and the result would produce great benefits of both society and economy.

关键词： Key Words mobile communications credit evaluation genetic algorithms multidimensional distinguishing model behavior attributes

Genetic Algorithm for Chinese Postman Problems

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wuhan university Journal of Natural Sciences 2003年第S1期8卷 316-318页

作者： Jiang Hua, Kang li-shanState Key Laboratory of Software Engineering, wuhan university,wuhan 430072,hubei, china State Key Laboratory of Software Engineering Wuhan University Wuhan Hubei China

Chinese Postman Problem is an unsettled graphic problem. It was approached seldom by evolutionary computation. Now we use genetic algorithm to solve Chinese Postman Problem in undirected graph and get good results. It could be extended to solve Chinese postman problem in directed graph. We make these efforts for exploring in optimizing the mixed Chinese postman problem.

关键词： Chinese postman problem Eularian graph genetic algorithm evolutionary computation

Analytical method of Cr stable isotope and its application to water pollution survey

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Chinese Science Bulletin 2010年第7期55卷 664-669页

作者： GAO YongJuan 1,2,3,MA Teng 4,5,liNG Wenli 1,2,liU CunFu 4,5 & li li 4,5 1Faculty of Earth Science,china university of geosciences,wuhan 430074,china 2State Key Laboratory of Geological Processes and Mineral Resources,china university of geosciences,wuhan 430074,china 3 Graduate School,china university of geosciences,wuhan 430074,china 4 Biogeological and Environmental Geology Laboratory of Ministry of Education(china university of geosciences) ,wuhan 430074,china 5 Sino-Hungary Joint Laboratory of Environmental Sciences and Health,china university of geosciences,wuhan 430074,china Faculty of Earth Science China University of Geosciences Wuhan 430074 China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China Graduate School China University of Geosciences Wuhan 430074 China Biogeological and Environmental Geology Laboratory of Ministry of Education (china university of geosciences) Wuhan 430074 China Sino-Hungary Joint Laboratory of Environmental Sciences and Health China University of Geosciences Wuhan 430074 China

High Cr(VI) concentration is a potential serious risk to environment and ecologic ***,it is essential to effectively monitor Cr contamination in water systems and scientifically evaluate its evolution trend.A new method of in-situ tracer technique by Cr isotopic analysis for quantitatively estimating Cr-contamination and its regional evolution in natural waters as well as a case application are reported in this *** on documented literatures,an experimental procedure for chemical separation and purification of Cr in water samples and its analytical method for Cr isotopic measurement by thermal ionization mass spectrometry(TIMS) are *** samples collected around a chemical factory in hubei Province were analyzed by this *** samples showδ53Cr values ranging from-1.7‰to 7.3‰and an elevating trend with an increasing in distance from the sampling site to pollution source.A functional correlation following Rayleigh fractionation law was established between sample'sδ53Cr value and its extent of Cr *** study suggests that Cr isotopic analysis is an effective method to reveal the spatial distribution and its evolution trend of Cr contamination in the regional water *** is thus helpful to assessing the self-purifying ability of local water system according to Cr isotopic fractionation.

关键词：铬(VI) 水污染调查稳定同位素应用同位素分析供水系统演变趋势示踪技术

Synthesis and photochromic properties of WO_3 powder induced by oxalic acid

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Science china Chemistry 2009年第5期52卷 609-614页

作者： SHEN Yi1, ZHU Hua1, HUANG Rong1, ZHAO li2 & YAN ShaNing1 1 Faculty of Material Science and Chemical Engineering, china university of geosciences, wuhan 430074, china 2 Faculty of Materials Science and Engineering, hubei university, wuhan 430062, china Faculty of Material Science and Chemical Engineering China University of Geosciences Wuhan China Faculty of Materials Science and Engineering Hubei University Wuhan China

Tungsten trioxide powder with the novel morphology was prepared via the hydrothermal method with oxalic acid as the organic inducer, the structure and shape of which were detected by X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET. Furthermore, photochromic properties of the as-prepared powder samples were tested by an ultraviolet-visible spectrophotometer combined with a color difference meter. The corresponding results indicated that the induced product was still hexagonal WO3, made up of regularly spindle particles with 200-300 nm in length and 30-50 nm in width. The ratio of the length and width was from 4 to 10. Moreover, the special morphology improved its absorptive capacity to the excitation light source, resulting in its high photochromic properties.

关键词： WO3 powder photochromism oxalic acid organic inducer

Hepatic Histopathological Characteristics and Antioxidant Response of Phytoplanktivorous Silver Carp Intraperitoneally Injected with Extracted Microcystins

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Biomedical and Environmental Sciences 2009年第4期22卷 297-302页

作者： li li AND PING XIE Fisheries College of Huazhong Agricultural university, wuhan 430070, hubei, china Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of china, Institute of Hydrobiology, Chinese Academy of Sciences, wuhan 430072, hubei, china Fisheries College of Huazhong Agricultural university Wuhan 430070 Hubei China Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology of China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China

Objective To investigate the hispathological characteristics and antioxidant responses in liver of silver carp after intraperitoneal administration of microcystins （MCs） for further understanding hepatic intoxication and antioxidation mechanism in fish. Methods Phytoplanktivorous silver carp was injected intraperitoneally （i.p.） with extracted hepatotoxic microcystins （mainly MC-RR and -LR） at a dose of 1000 μg MC-LReq./kg body weight, and liver histopathological changes and antioxidant responses were studied at 1, 3, 12, 24, and 48 h, respectively, after injection. Results The damage to liver structure and the activities of hepatic antioxidant enzymes including catalase （CAT）, superoxide dismutase （SOD）, and glutathione peroxide （GPX） were increased in a time-dependent manner. Conclusion In terms of clinical and histological signs of intoxication and LD50 （i.p.） dose of MC-LR, silver carp appears rather resistant to MCs exposure than other fishes. Also the significantly increased SOD activity in the liver of silver carp suggests a higher degree of response to MCs exposure than CAT and GPX.

关键词： Antioxidant response Histopathological characteristics liver Microcystins Fish

Phylogeny Constructed by Using Diversity Increment

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wuhan university Journal of Natural Sciences 2003年第S1期8卷 303-306页

作者： Shi Feng, li Na-na, li Yuan-xiang, Zhou Huai-beiSchool of Mathematics and Statistics, wuhan university, wuhan 430072,hubei,chinaAdvanced Research Center for Science and Technology, wuhan university, wuhan 430072, hubei,chinaState Key Laboratory of Software Engineering, wuhan university, wuhan 430072,hubei,china School of Mathematics and Statistics Wuhan University Wuhan Hubei China Advanced Research Center for Science and Technology Wuhan University Wuhan Hubei China State Key Laboratory of Software Engineering Wuhan University Wuhan Hubei China

A new approach based on the concept of the diversity increment is applied to reconstruct a phylogeny. The phylogeny of the Eutherian orders use concatenated H-stran-ded amino acid sequences, and the result is consiste... 详细信息

关键词： diversity indicator phylogeny distance

Research and Implementation of Unsupervised Clustering-Based Intrusion Detection

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wuhan university Journal of Natural Sciences 2003年第3A期8卷 803-807页

作者： Luo Min, Zhang Huan\|guo, Wang li\|na School of Computer, wuhan university, wuhan 430072, hubei, china School of Computer Wuhan University Wuhan Hubei China

An unsupervised clustering\|based intrusion detection algorithm is discussed in this paper. The basic idea of the algorithm is to produce the cluster by comparing the distances of unlabeled training data sets. With the classified data instances, anomaly data clusters can be easily identified by normal cluster ratio and the identified cluster can be used in real data detection. The benefit of the algorithm is that it doesn't need labeled training data sets. The experiment concludes that this approach can detect unknown intrusions efficiently in the real network connections via using the data sets of KDD99.

关键词： intrusion detection data mining unsupervised clustering unlabeled data