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STABLE　POSITIVE　PERIODIC　 SOLUTIONS　OF　THE　PERIODIC　COMPETITIVE　SYSTEMS

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Systems Science and Mathematical Sciences 1996年第2期9卷 134-139页

作者： LI Hua(Department of Applied Mathematics, Xidian university, china)CHEN Lansun(institute of Mathematics, Academia Silica, Beijing 100080, china) 西安电子科技大学应用数学系陕西西安中科院数学所北京

ＳＴＡＢＬＥＰＯＳＩＴＩＶＥＰＥＲＩＯＤＩＣＳＯＬＵＴＩＯＮＳＯＦＴＨＥＰＥＲＩＯＤＩＣＣＯＭＰＥＴＩＴＩＶＥＳＹＳＴＥＭＳＬＩＨｕａ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＸｉｄｉａｎＵｎｉ... 详细信息

ＳＴＡＢＬＥＰＯＳＩＴＩＶＥＰＥＲＩＯＤＩＣＳＯＬＵＴＩＯＮＳＯＦＴＨＥＰＥＲＩＯＤＩＣＣＯＭＰＥＴＩＴＩＶＥＳＹＳＴＥＭＳＬＩＨｕａ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＸｉｄｉａｎＵｎｉｖｅｒｓｉｔｙ，Ｃｈｉｎａ）ＣＨＥ...

关键词： Periodic competitive system periodic solution global asymptotic stability,concave operator.

THE COMPARISON BETWEEN THE CHAOTIC DEGREES OF CHINESE AND AMERICAN STOCK MARKETS

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Journal of Systems Science & Complexity 2001年第1期14卷 75-80页

作者： SONG Xuefeng, XIA Feng (Economic and Managerial Complexity institute, School of Management, china university of Mining and Technology, Xuzhou 221008, china) （徐州）中国矿业大学江苏徐州 221008

In this paper, the chaotic degrees of Chinese and American Stock Markets are compared firstly. Secondly, the features of American Stock Market during the 50 years’ development are involved. And finally the difference... 详细信息

关键词： Chaotic degree stock market Lyapunov exponent.

Contributors and potential of hydrocarbon generation of source rocks by solid-state ^(13)C NMR spectroscopy

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Chinese Science Bulletin 1997年第6期42卷 478-481页

作者： WANGZhaoyun, ZHAO Changyi, CHENG Keming and LU Qinghua1. Research institute of Petroleum Exploration and Development, china National Petroleum Corporation, Beijing 100083, china:2. university of Petroleum, Beijing, 100083 china Research institute of Petroleum Exploration and Development China National Petroleum Corporation Beijing China university of Petroleum Beijing China

SOLID-STATE 13C nuclear magnetic resonance （NMR） technique is an effective method to study the texture of material. Under the condition of high magnetic field （400 MHz） and by the application of cross polarization, magic angle spinning （CP/MAS）, total sideband suppression （TOSS）, etc., the content of different textural carbons in kerogen has been quantitatively analyzed by the solid-state 13C NMR spectroscopy of a series of kerogen of thermal simulation samples with Ro value ranging from 0.64% to 1.76%. The results show that

关键词： solid 13C NMR analysis aliphatic carbon potential of hydrocarbon generation of source rocks.

Survivability Specification Framework for Dependability-Functionality Codesign of ERTS

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Wuhan university Journal of Natural Sciences 2005年第1期10卷 75-78页

作者： JINYong-xian instituteofComputerScience ZhejiangNormalUniversityJinhua321004ZhejiangChina

In ordet to maintain the dependability of system and meet the functional needof users dtsire, this paper introduces a survivability mechanism into embedded real-time system,and proposes a general comprehensive, approach based on a rigorous definition of survivability. Thisapproach permits a trade-off between the function and the cost of system development. It emphasizesthe ultradependable implementation of crucial function without demanding that of entire system.

关键词： ERIS (embedded real-time systems) dependability-functionality codesign survivability specification

超声乳化白内障吸除及人工晶状体植入手术的观察及护理

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天津职业大学学报 2002年第6期11卷 52-53,57页

作者：史学军天津医大第三附属医院天津300203

超声乳化白内障吸除联合人工晶状体植入手术已成为目前临床治疗最重要的手段,治疗效果不仅与手术操作直接有关,还与认真周密的护理配合有关,特别昌手术者、护士和患者的密切配合。

关键词：超声乳化术白内障护理人工晶状体心理护理.

Molecular evolution of connective tissue growth factor in Cyprinidae (Teleostei:Cypriniformes)

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Progress in Natural Science:Materials International 2008年第2期18卷 155-160页

作者： Xianghui Kong a,b,Xuzhen Wang a,Xiaoni Gan a,Junbing Li a,Shunping He a,a institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,china b College of Life Science,Henan Normal university,Xinxiang 453007,china institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China College of Life Science Henan Normal University Xinxiang 453007 China

Connective tissue growth factor (CTGF) plays an important role in regulation of cell growth,differentiation,apoptosis and individual development in animals. The study of sequences variation and molecular evolution of CTGF gene across various species of the cyprinid could be helpful for understanding of speciation and gene divergence in this kind of fish. In this study,19 novel sequences of CTGF gene were obtained from the representative species of the family Cyprinidae using PCR amplification,cloning and sequencing. Phylogenetic relationships of Cyprinidae were reconstructed by neighbor-joining (NJ),maximum parsimony (MP),maximum likelihood (ML) and Bayesian method. Oryzias latipes from the family Cyprinodontidae was assigned to be the outgroup taxon. Leuciscini and Barbini were clustered into the monophyletic lineages,respectively,with the high nodal supports. The estimation of the ratio of non-synonymous to synonymous substitution (dN/dS) for the various branches indicated that there stood the different evolution rates between the Leuciscini and the Barbini. With the ratio of dN/dS of the Leuciscini being lower than that of the Barbini,species within the Barbini were demonstrated to be subjected to the relatively less selection pressure and under the relaxable evolution background. A 6 bp indel (insertion/deletion) was found at the 50 end of CTGF gene of Cyprinidae,and this 6 bp deletion only appeared in the Leuciscini,which is a typical characteristic of the Leuciscini and provides evidence for the monophylogeny of the Leuciscini. For the amino acid sequences of CTGF protein,the most variations and indels were distributed in the signal region and IGFBP region of this protein,implying that these variations were correlated with the regulation of the CTGF gene expression and protein activity.

关键词： Connective tissue growth factor Sequence variation Molecular evolution Cyprinidae

CYCLOPEPTIDES FROM STELLARIA DELAVAYI

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Chinese Chemical Letters 1996年第2期7卷 149-152页

作者： Yu Rut ZHAO Jun ZHOU Xiang Kai WANG Hou Ming WU Xiao Lin HUANG (Department of Medicinal Chemistry of Natural Products,School of Pharmacy. West china university of medical Sciences, Chengdu 610041)(Laboratory of Phytochemistry, Kunming institute of Botan W china UNIV MED SCI SCH PHARMDEPT MED CHEM NAT PRODCHENGDU 610041PEOPLES R CHINA CHINESE ACAD SCI KUNMING INST BOTLAB PHYTOCHEMKUNMING 650204PEOPLES R CHINA CHINESE ACAD SCI SHANGHAI INST ORGAN CHEMSTATE KEY LAB BIOORGAN & NAT PROD CHEMSHANGHAI 200032PEOPLES R CHINA

Further chemical study on Stellaria delavayi led to the isolation of two ether new cyclopeptides, namely stelladelin B and C. On the basis of spectroscopic analysis and chemical evidence, their structures were established as cyclo(Gly-Ile-Pro(2)-Pro(1)-Ala-Tyr-Asp-Leu) and cylo(Val-Pro(3)-Tyr(2)-Pro(2)-Pro(1)-Phe-Tyr(1)-Ser), respectively.

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Cytotoxicity of Contact Lens Care Solution to Human Corneal Epithelium in Vitro

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眼科学报 1998年第1期14卷 45-47页

作者： Xiangming Gong, Xingwu ZhongDepartment of Optometry, Zhongshan Ophrhalmic Center, Sun Yat-sen university of medical Sciences, Guangzhou 510060, china Department of Optometry Zhongshan Ophrhalmic Center Sun Yat-sen University of Medical Sciences Guangzhou 510060 China.

Purpose: To investigate the cytotoxicity of soft contact lens multi-purpose care solutions which are now in common use in ***: The cell culture method was used. Cytotoxicity was indicated by significant increases in the number of dead cells relative to ***: Cells were exposed to soft contact lens care solutions for 15 min. They were irregular in shape and variable in size. The intercellular space increased and variable in *** in-tercelluar space increased and the cells became scrunken. With the time of exposure elongated , damage of cells became more ***: Four kinds of soft contact lens multi-purpose care solutions may have harmful effects on the culture of human corneal epithelial cells. Soaked lenses should be rinsed with saline before being placed in the eyes in order to reduce the potential toxicity of contact lens care solutions. Eye science 1998; 14 :45 - 47.

关键词：细胞毒素隐形眼镜保护液角膜上皮细胞

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教学工作量相对应的科研工作量化考核体系

天津理工学院学报 2003年第4期19卷 105-108页

作者：刘群天津理工学院天津300191

教学与科研是相互促进、相辅相成的.高校教师承担着教学、科研双重任务,因此对教师的综合考核是师资管理工作中的重要课题.其中应该如何对科研工作进行考核是目前一些高校争论的焦点.本文提出一种建立科研工作量化考核体系的方法,在教... 详细信息

教学与科研是相互促进、相辅相成的.高校教师承担着教学、科研双重任务,因此对教师的综合考核是师资管理工作中的重要课题.其中应该如何对科研工作进行考核是目前一些高校争论的焦点.本文提出一种建立科研工作量化考核体系的方法,在教学与科研工作之间建立起量的对应关系,将科研工作量转换成与教学工作量相对应的标准体系,着重对科研工作的考核周期和量化标准进行了探讨.本方法适用于地方高等学校对教师科研工作进行量化考核.对于激发、调动教师从事科研工作的积极性,加快学科发展与教师队伍建设有着重要的意义.

关键词：教学工作量科研工作师资管理高校量化考核