有效部分

It consists of six parts; the first introduction relating to its significance and backset; the second is a summary about documents, the purpose of content and methods of research. The third expands on the effective teaching connotation, theoretical basis and characteristics of teaching mode.

论文共分六大部分，第一部分为前言，介绍本论文研究的背景、意义；第二部分为文献综述和研究目的、内容和方法；第三部分对有效教学及教学模式的内涵、理论基础、发展、现代教学模式的特点等几方面做了详细的理论上的阐述。

In the test of weak-form efficient hypothesis, this thesis used auto regression, auto correlation function and unit root three models, and got the basically same results. In the test of semistrong-form efficient hypothesis, this thesis used market model, index return model and constant mean return model three ways to estimate the normal return when making use of event study, and the results were also basically same.

其中，为求全面和比较，在对弱势有效市场的假说的检验部分，本文运用了自回归检验、自相关函数检验和单位根检验三种计量模型，检验结果基本一致；在对半强势有效市场假说的检验部分，本文运用了事件研究法，并在估计正常收益率时使用了市场模型、指数收益模型以及均值模型三种方法，估计结果也相对一致。

The DTPA extractable of heavy metal in red soil is significantly higher than that in paddy soil.

土壤中金属的DTPA浸提量与全量呈现显著的正相关。DTPA能浸提出土壤中水溶性、交换态、吸附态、有机固定态和部分氧化态的重金属，这部分相对于其全量被认为是高度生物有效的形态，其快速方便的浸提程序，可以在类似土壤中作为一种有效的重金属污染的评价指标。

In the part I, the concept, development and current lawmaking status of E-mail are introduced. In this part, the writer states the source, development and basic technical principals of E-mail and analyses its current application status and the importance of effectiveness identification of being evidence. Besides, related international laws on E-mail and lawmaking status in many countries are introduced. Present situation of our country's lawmaking and related model laws since the utilization of E-business and E-mail are also stated and discussed. Part II emphasizes on the differences between E-mail and traditional evidences and generalizes the characteristics of E-mail, i.e.: forgeability, changeability, dependence, uncertainty, duplicatability and transmission. Through the detailed analysis, the writer concludes that it is the above-mentioned characteristics to hinder E-mail becoming the effective evidence. Part III is the key one of this article and mainly discusses the effectiveness identification of E-mail as evidence. In this part, the writer states how the 5 characteristics of E-mail mentioned in Part II to affect the validity and authenticity of E-mail as evidence.

第一部分介绍了电子邮件的概念、发展及立法现状，在该部分中笔者详细阐述了电子邮件的产生、发展以及电子邮件运作的基本技术原理，论述了电子邮件目前的应用状况以及解决其作为证据被认定问题的重要性，同时还介绍了世界上与电子邮件有关的相关国际规范以及各国立法的情况，并讨论了我国自电子商务及电子邮件使用以来的立法现状以及相关的典型立法；第二部分重点阐述了电子邮件与传统证据的区别，并将这些区别归纳为电子邮件作为数据电文的一种类型所具有的特殊属性，即：易伪造性，易修改性，依附性，原件不确定性，易复制和传播性，通过对这些特性的详细阐述，得出了这些属性是导致电子邮件无法成为有效证据的主要障碍的这一结论；第三部分是本文的重点，着重讨论了电子邮件证据效力的认定问题，该部分主要阐述了第二部分提及的电子邮件的五个特性造成了电子邮件证据在合法性和真实性这二方面的障碍。

In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

Part One is an introduction focusing on the background,the significance and the purpose of the present study.Part two provides a brief overview of a theoretical review on the nature of reading process,a brief review of 3 traditional methods of teaching in reading and research on TBLT in china and abroad.Part three introduces Constructivism,Krashen"s "Input and Interactionist Hypothesis" and The affective filter hypothesis,which construct a theoretical frame for the study.Part four provides the application of TBLT to teaching reading in senior middle school,mainly including fundamental principles,types of the reading task design and finally introducing the design of TBLT models in senior high school according to Willis"task-implementing model in teaching.Part five elaborates the experiment itself,mainly including the hypothesis of the present study,the procedures of the experiments and questionnaires.Part six is data collection and analyses.The result of the experiment shows that TBLT is more effective than traditional method in senior middle school English reading.Part seven draws a conclusion to the study.Implications as well as limitations are discussed here.

陈述了目前研究的背景，意义和目的；第二部分为文献综述，介绍三种阅读模式，以往阅读课所用的传统教法及其局限性；任务的定义，国内外对任务型教学的研究；第三部分为任务型教学的理论基础，介绍了构建主义理论，克拉申的输入假设理论，情感过滤假设；第四部分探讨了任务型教学在高中英语阅读教学的具体应用，包括阅读课设计的原则，类型，以及根据Willis的教学模式所设计的高中英语阅读教学模式；第五部分为实验部分，包括本研究的假设、实验方法、实验过程、测量工具等；第六部分数据收集和分析，结果表明：任务型教学提高英语阅读教学成绩比传统的教法有效；第七部分是本研究的结论，本研究对外语阅读教学的启示及本研究的局限性。

Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.

对于小电流扩散态真空电弧，重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响，部分仿真结果进行了实验验证；对离子处于超音速流动的收缩态真空电弧的仿真表明，真空电弧的磁收缩主要是由于霍尔效应引起的，离子温度和电子温度沿轴向先增大后减小，马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩，而且阴极斑点分布对真空电弧特性也有着显著的影响；对离子处于亚音速流动状态的大电流真空电弧的仿真表明，部分等离子体不能到达阳极而损失，马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失，同时能使阳极电流密度和能流密度的分布更加均匀。

The study of vertical channel with high field effect mobility by Ni induced lateral crystallization, which can form larger grains on channel regions and reduce grain boundary defects. We detect the method of Ni induced lateral crystallization through high field effective mobility, but that accumulates too much Ni on floating N+ region and causes defects and metal contamination. As Ni is used to form silicde and then proceed to low temperature annealing, we can observe the floating region that has no Ni acumination regions or contaminations. This aids us in obtaining good electronic performance of this device, not only the remote field effective mobility but also the vast improvement of sub-threshold swing and on/off currents.

接著，是延续垂直通道的研究，希望能有效的提升电子迁移率，因此以镍金属诱导横向结晶的方式使通道形成较大的结晶，减少矽晶粒之间的缺陷，而在初步的研究，发现以镍金属直接诱导横向结晶的方式，经由低温长时间回火之后，由於镍金属扩散的关系，完成诱导结晶之后，有过多的镍金属聚集在顶部参杂的中间区域，而造成过多的缺陷累积，虽然电子迁移率有效的提升，但整体的电性并不如预期，因此提出先形成镍金属矽化物后，将未反应的镍金属或金属氧化物去除之后，再进行镍金属矽化物诱导横向结晶处理，经由结果观察得知在顶部掺杂区域部分没有明显的镍金属累积或污染，并且得到很好的整体电性，除了电子迁移率有效提升之外，次临界特性以及导通电流都能有效改善。

Pit corrosion is a main kind of localized corrosion. The process of forming pit corrosion includes three stages-formation of pit source, development of pit cave and forming occluded corrosion cell. Molybdate series inhibitors can be inhibitive, for it can control three stages of pit development. First, there is apparent synergistic effect between molybdate and phosphate, which can suppress formation of pit source. Second, there is apparent passivation of molybdate inhibitor according to electrochemistry analysis, which let oxidation film in unoccluded cave repassivate.

首先，钼酸盐与磷酸盐或硅酸盐复配的缓蚀剂具有较理想的缓蚀性能，并且有明显的协同作用，从而能抑制部分点蚀核的产生；其次，钼酸盐复配缓蚀剂的使用，从电化学的角度分析，具有明显的钝化性能，且钝化区间较宽、维钝电流密度较小，从而能使未封闭的蚀孔或点蚀核附近的氧化膜再钝化，得到有效的修复；最后，对于还有部分蚀孔发展成为闭塞腐蚀电池的情况，钼酸盐、磷酸盐能进入蚀孔内部并且在酸性条件下生成铁钼磷酸盐，从而有效地减缓了点蚀的恶化，抑制了腐蚀的发展。

Learning of all the three linguistic forms in terms of both short-term and long-term effects. The differential results have a close relationship with the MT and CV features of them. A form with lower CV might be more attention-demanding in terms of its inherent semantic value.The thesis consists of 5 chapters: Chapter 1 is an introduction of the research topic, purpose and significance; Chapter 2 is a selective literature review of the enhancement techniques and mixed results of FonF in the previous studies, Chapter 3 presents the theoretical framework the present study wasbased on; Chapter 4 reports on the present study, including the hypotheses, operational definitions, subjects, target language forms, research design, procedures, instrument, data collection and analysis, analysis, discussion; and Chapter 5 is the conclusions of the present study.

本文由五部分构成：第一章为引言，介绍选题、研究目的及其意义；第二章对前期'有意注意形式教学'研究中注意强化技巧及取得的不同研究成果进行了回顾，并指出了尚存问题；第三章为理论框架，根据注假设意理论及输入加工理论，建立了本研究假设；第四章报告了现行研究，包括研究假设，目标语选用，实验及其数据收集、整理、分析、讨论；第五章报告了研究结论：'有意注意形式教学法'只对学习部分语言形式有效；学习某些语言形式时传统教学法更有效；语言结构复杂性对教学方法的有效性具有显著影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。