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Manuscripts of original articles, editorials, reviews, case-reports ,short reports、and correspondence on clinical, laboratory, immunologic, epidemiologic, sociologic topics in the field of sexually transmitted infections including AIDS/HIV infection and related are welcome from China including Taiwan, Hong Kong, Macao and any part of the rest world.

本刊主要刊登来自中国及邻近地区包括台湾、香港、澳门等地有关性传播疾病、HIV感染/艾滋病领域的有关临床、实验、免疫学、流行病学和社会学等方面研究的原创论文、综述、病历报告、述评及通讯等稿件。

The result of clustering based on quantitative data of vessel elements suggests that the Sonneratia species evolved into two clades, one including S. caseoalris and S. paracaseolaris that has the wider vessel and lower pore density suggesting a high conducting efficiency, the other including S. alba, S. ovata, S. apetala and S. hainanensis that has the narrower vessel and higher pore density resulting in high conducting safety.

导管数量特徵的聚类分析可以推测海桑属植物沿两支进化，一支进化为水分输导效率高的种类（即导管直径宽和输导面积大，管孔密度小，如海桑和拟海桑），另一支进化为水分输导安全性高的种类（即导管直径窄、输导面积小，管孔密度大，如杯萼海桑、卵叶海桑、无瓣海桑、海南海桑）。

The result of clustering based on quantitative data of vessel elements suggests that the Sonneratia species evolved into two clades,one including S. aseoalris and S.paracaseolaris that has the wider vessel and lower pore density sug esting a high conducting eficiency,the other including S.alba,S. ovata,S.apetala and S.hainanensis that has the narrower vessel and higher pore density resulting in high conducting safety.

导管数量特征的聚类分析可以推测海桑属植物沿两支进化，一支进化为水分输导效率高的种类(即导管直径宽和输导面积大，管孔密度小，如海桑和拟海桑)，另一支进化为水分输导安全性高的种类(即导管直径窄、输导面积小，管孔密度大，如杯萼海桑、卵叶海桑、无瓣海桑、海南海桑)。

Structures of seven compounds were elucidated mainly by the use of spectroscopic methods, especially by detailed analyses of 〓 and 〓 NMR spectra with the aid of 2D NMR spectroscopy including 〓 COSY,〓 COSY, HMQC, HMBC, COLOC, and MS techniques including EI-, CI-, SI-, ESI-MS and HR-EI-MS. Stereochemical structures of some of them were also determined on the basis of results of their NOEDS, NOESY and coupling relation.

利用现代的各种波谱学方法，特别是在确定未知化合物结构中起重要作用的各种NMR技术（-维〓、〓 NMR、DEPT、NOEDS和二维〓COSY、〓COSY、HMQC、HMBC、COLOC、NOESY谱等）和MS技术（EI-、CI-、SI-、ESI-MS及HR-EI-MS等），鉴定了这7个化合物的平面结构和部分立体结构。

AWG, DIAMETER 12,34mm Tension joints Repair sleeves Vibration dampers, Stockbridge type Vibration dampers, loop type Complete Suspension Assemblies, including electrical connection to tower body, dwg Complete Dead End Assemblies, including electrical connection to tower body, dwg.

6特设工作组，直径12，34毫米张力关节修复袖子振动阻尼器，斯托克型振动阻尼器，环型全部中止大会，包括电气连接，以塔体， DWG格式完成死胡同大会，包括电气连接，以塔体， DWG格式。

Therefore, it can be regarded as a great improvement of the investment decision-making theory and methods .This article makes a systematic research on real options theory and method and its application, including the following several main aspects:Firstly, it makes a detailed discussion about the common theoretical basis of financial options and real options, including no-arbitrage equilibrium principle, risk-neutral definition, complete market and dynamic tracking.Secondly, it analyze three basic characteristic of investment decision-making in modern market economic system: irreversibility, uncertainty and flexibility, and from the angle of their mutual quantitative and qualitative interactions, it makes a comparison between the traditional NPV methods and real options methods and makes a summary of the general analytical methods of real options.Thirdly, it discusses the all elements in the application of real options such as the ^leakages in value of real assets, basis risk, and private risk, and furthermore, it attempts to put forth a normalized strategy of its application and construct a basic framework of its application.Fourthly, it applies real options theory to strategetic investment of enterprises and the buy-out of company, putting forth a value model for strategetic investment program and making a concrete analysis of its application to buy-out. Furthermore, it advocates that a flexible investment decision-making system should be setup according to real options theory in our country.

本文对实物期权理论和方法及其应用进行了系统研究，主要内容包括如下几个方面：(1)详细讨论了金融期权和实物期权共同的理论基础，主要包括无套利均衡原理、风险中性定义、完全市场以及动态复制方法，对这些理论方法的探讨既是本文的出发点和基础，它们提供了研究实际应用实物期权的一个基准点，也是贯穿全文的线索和灵魂；(2)分析了现代市场经济体系中投资决策的三个基本特征即不可逆性、不确定性和时机选择，并从它们数量上和质量上相互作用的重要意义的角度，分析了传统的净现值法与实物期权方法的差异，指出了净现值法在不确定环境中存在的缺陷及实物期权处理投资灵活性的价值，并将净现值法纳入实物期权投资分析决策体系当中，总结了企业投资决策实物期权的一般分析方法；(3)探讨了实物期权应用中要考虑的各种要素，如实物资产的价值漏损、基差风险和非市场风险等，并进一步提出了实物期权应用的规范化策略和构建了一个实际应用实物期权方法的基本框架，尝试将期权的基本原理与企业在现实经济环境中投资决策的要素结合起来，从而可以在一定程度上超越期权的复杂的数学计算而汲取期权思想的精华，从而促进期权决策方法在实际投资决策中的应用；(4)将实物期权方法应用于企业战略投资，得出了战略投资项目的价值模型，指出可以将实物期权理论和方法应用于企业并购，分析了应用的具体方面，并提出应根据实物期权理论建立一套适合我国企业的灵活的投资决策系统。

The application status of Real time and Embedded softwa re is introduced in this paper firstly ,and based on analyzing character of Real time and Embedded softwar e including real time nature ,embed nature and reactive nature, the paper summar izes the current domestic and foreign research thing of this field ,including va rious kinds of test method, test ...

本文首先概括地介绍了实时嵌入式软件的应用现状，在详细分析了实时嵌入式软件的特征—实时性、嵌入特性和反应性—的基础上，综述了在该领域的国内外测试现状，包括各种测试方法、测试工具、测试策略和存在的问题。最后，对实时嵌入式软件的测试进行了小结。

The application status of Real time and Embedded softwa re is introduced in this paper firstly ,and based on analyzing character of Real time and Embedded softwar e including real time nature ,embed nature and reactive nature, the paper summar izes the current domestic and foreign research thing of this field ,including va rious kinds of test method, test tool, test strategy and problems.

这些特性主要表现为实时性、反应性和嵌入特性。这些特点向实时嵌入式软件的测试提出了许多新的挑战。本文首先详细分析了实时嵌入式软件的应用特点，分析了这些特点对测试带来的困难，并详尽地介绍实时嵌入式软件的测试技术，包括测试方法、测试策略和测试现状。

The book covers both plants and animals, and deals with all relevant areas of research, including biogeography, field work, systematics, theory, and genetic and molecular studies, with special emphasis to topics,including sympatric speciation, reinforcement, the role of hybridization in speciation, the search for genes causing reproductive isolation, and mounting evidence for the role of natural and sexual selection in the origin of species.

该书内容覆盖植物和动物，并且涉及所有相关的研究领域，包括生物地理学，野外工作，系统分类学，理论，和遗传和分子研究，特别强调了包括同区域物种形成，增强，杂交在物种形成中的作用，寻找导致生殖隔离的基因，寻找自然和性别选择在物种起源中作用的证据。

TangHan catering planning is more well-known involved in chongqing catering industry marketing system, including the blazers catering strategy, marketing, catering culture and food, food advertising planning activities, catering operations (including site before the shop, middle and late marketing service system), catering to promote and catering media publicity, and promote the professional catering culture mining food research institutions.

广电唐汉餐饮策划是重庆本土较为知名的涉及餐饮行业营销体系建设的开拓者，包括餐饮战略咨询、餐饮文化营销、餐饮活动策划、餐饮广告投入、餐饮运营操作（含选址开店前、中、后期策划营销服务体系）、餐饮加盟推广和餐饮媒介宣传，以及挖掘推广餐饮文化的专业餐饮研究机构。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。