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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。

These are not part of the main sample download for the toolbox, and should be unzipped to the same directory as the main downloads, creating a Faq subdirectory in the main Ultimate Toolbox dir.

这些都不是主要的工具箱样本下载的一部分，并应解压缩到与主下载同一个目录，创建一个主要终极工具箱迪尔常见问题子目录。

The main structure of this paper consists of two parts: theoretical analysis was mainly conducted in the first part, which including chapter 1 and 2, in this part the analysis was focusing on the connotation of liquidity, the supply and demand theory, the measuring methods, as well as micro-and macro-economic effects, and then proposed that the periodic reversal of liquidity was the concrete manifestation of the financial crisis; the second part, including the chapter 4,5,6 and 7, which cases analysis were made mainly in this part. Combined with the financial crisis, as well as from the US, developed-new emerging economies and China three different perspectives, it further analyzed the specific performance of liquidity reversal from excess to crunch, transmission processes and responding measures.

第二、三章为理论分析部分，分析了流动性的内涵剖析、供求理论和度量方法，以及流动性的经济效应；第四、五、六章为实例部分，以美国、中国，部分发达国家和新兴经济体在金融危机下流动性特征为案例，层层剖析了流动性变化的具体表现和原因，流动性变化的度量，以及流动性逆转在金融机构、金融市场和实体经济中的扩散，在不同国家间的传导；第七章提出防范流动性逆转危机的具体措施。

After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

The paper is composed of three main parts."Part of Drama" focuses on analyzing contents and artistic features of Shakespere"s drama "Othello";"Part of Opera" aims at illuminating contents and artistic features of Verdi"s opera-"Otello";"Part of Comparision"is the key part of the essay. The author tries to explore differences and causes by comparing Verdis opera with the original on the point of artistic features and contents.

全文分为三部分，第一部分&戏剧篇&意在分析莎士比亚戏剧《奥瑟罗》的主题内容和艺术特点；第二部分&歌剧篇&旨在阐明威尔第歌剧《奥瑟罗》的主题内容和艺术特点；第三部分&比较篇&是本文的研究重点，笔者致力于歌剧与原著在艺术特点和艺术内涵上的比较研究，探讨二者之异同及其原因。

In the first part there is an introduction in brief to the history and present market status of the Chinese motorcycle industry; In the second part, there is an introduction in brief to the international motorcycle market, analyzing the marketing characteristics of the Chinese motorcycle export business, find out the key characteristics which influence the Chinese motorcycle export; In the third part, through the analogizing and analyzing on the Chongqing motorcycle export, find out the main problems which have hindered the expansion of the Chongqing motorcycle export; In the forth part, based on the analysis of the China"s entry to "WTO which will influence the motorcycle and its spare-part industry, make out some new basic strategy and further countermeasures to the expansion of the Chongqing motorcycle in overseas market.

首先，在第一部份中简要介绍了我国摩托车工业的发展历史和市场现状，；在第二部分中，介绍了国际市场的摩托车贸易现状，对中国摩托车出口的国际市场特点进行研究，分析影响中国摩托车出口的各类因素；在第三部分中，通过对重庆市摩托车近期出口现状的分析，指出扩大重庆摩托车出口所面临的瓶颈问题；第四部分，在对加入&WTO&以后我国摩托车工业可能受到的影响进行分析的基础上，为扩大重庆摩托车产品的出口提出一些新的思路。

The second part: It was the main text point, elaborated the formation process of petroleum safety policy in Middle East of the United States, insured the American national security, chastened Soviets petroleum to extend, and guarantied the western allies petroleum to supply safety, which was the United States the outward policy's important and strategic target to the safety policy of petroleum of Middle East particularly. At the foundation that the second part discussed on, the third part talked about the United States building the natural cover that was set up to keep Soviets petroleum influence from going down south, controlled Middle East petroleum resources, maintained the petroleum charter power, insured the western petroleum to supply and transport safety, kept Soviets petroleum from entering Western Europe, chastened "" newcomer"" and carried on the total analysis to the American petroleum of Middle East safety policy's contents and substances from four aspects. The fourth part: carried on the valuation to the safe policy of American petroleum of Middle East fromfour aspects, analyzed its gain and loss.

确保美国国家安全，遏制苏联石油扩张，保障西方盟国石油供给安全，是美国对外政策尤其是对中东石油安全政策的重大战略目标；在第二部分论述的基础之上，第三部分从美国构建阻止苏联石油势力南下的屏障，控制中东石油资源、维持石油特许权，确保西方石油供给、运输安全，阻止苏联石油进入西欧、遏制&新来者&四个方面对美国中东石油安全政策内容及实质进行总体分析；第四部分，从四个方面对美国中东石油安全政策进行评估，分析其得失。

The main theme of this thesis is to seek strategies and waysfor the survival of Yantai Port in the competition and for its sustainabledevelopment, The thesis is composed of seven parts:Part One: IntroductionPart Two: Port development strategies and the significance ofresearchingPart Three: Analysis of Yantai Port" external environment Part Four: Analysis of Yantai Port"s internal environment Part Five: Analysis of transportation demands in Yantai Port Part Six: Development strategies for Yantai Port Part Seven: Major problems and policies related to thedevelopment of Yantai PortThrough analysis and prognosticating of equipments, stuff, organization and the external and internal environments of Yantai Port, we forecast the demands of transportation of Yantai Port.

文章分七部分：一、前言：二、港口发展战略及其研究意义；三、烟台港外部环境分析；四、烟台港内部环境分析；五、烟台港港口运输需求分析预测；六、烟台港港口发展战略规划；七、烟台港港口发展的主要问题及应采取的对策及建议。本文首先对烟台港务局港口设施和设备、组织机构、人员结构等资源及面临的内、外部环境进行了综合分析。在此基础上，利用近十年的统计资料，赁借线性回归等数学工具建立数学模型进行港口运输需求分析预测。

The main body of the thesis focuses five parts:the first part gives a brief explain to the bound,aim,meaning and acutuality of the research;the second part compares the transforming process and the syntactic features of the components of Chinese causatives and English causatives;the third part compares the semantic features and the Sentence Model of Chinese causatives and English causatives;the fourth part compares the pragmatic features of Chinese causatives and English causatives in terms of the action of the mark,and try to explain the results with cognitive theory; the last part sums up the whloe thesis.

本文共分五个部分：第一部分对研究范围、研究意义、研究方法、研究现状作了简要说明；第二部分从转换生成和组成成分句法特点两方面对两组致使句的句法特点进行了对比；第三部从句子成分语义特点和句模两方面对两组致使句的语义特点进行对比；第四部分从标记的凸显作用等方面对两组致使句的语用特点进行对比，并试图进行认知解释；第五部分是对全文的总结。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失