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两篇英文proposal。网址 Proposal to Research the Storage Facilityfor Spent Nuclear Fuel at Yucca MountainRoger BloomOctober 1997Introduction Nuclear power plants produce more than 20 percent of the electricity used in the United States [Murray, 1989]. Unfortunately, nuclear fission, the process used to create this large amount energy, creates significant amounts of high level radioactive waste. More than 30,000 metric tons of nuclear waste have arisen from U.S. commercial reactors as well as high level nuclear weapons waste, such as uranium and plutonium [Roush, 1995]. Because of the build-up of this waste, some power plants will be forced to shut down. To avoid losing an important source of energy, a safe and economical place to keep this waste is necessary. This document proposes a literature review of whether Yucca Mountain is a suitable site for a nuclear waste repository. The proposed review will discuss the economical and environmental aspects of a national storage facility. This proposal includes my methods for gathering information, a schedule for completing the review, and my qualifications.Statement of Problem On January 1, 1998, the Department of Energy (DOE) must accept spent nuclear fuel from commercial plants for permanent storage [Clark, 1997]. However, the DOE is undecided on where to put this high level radioactive waste. Yucca Mountain, located in Nevada, is a proposed site. There are many questions regarding the safety of the Yucca Mountain waste repository. Researchers at Los Alamos National Laboratory disagree over the long-term safety of the proposed high level nuclear waste site located in Nevada. In 1994, Charles Bowman, a researcher at Los Alamos, developed a theory claiming that years of storing waste in the mountain may actually start a nuclear chain reaction and explode, similar to an atomic bomb [Taubes, 1995]. The stir caused by theory suggests that researchers have not explored all sides of the safety issue concerning potentially hazardous situations at Yucca Mountain. Bowman's theory that Yucca Mountain could explode is based upon the idea that enough waste will eventually disperse through the rock to create a critical mass. A critical mass is an amount of fissile material, such as plutonium, containing enough mass to start a neutron chain reaction [Murray, 1989]. Bowman argues that if this chain reaction were started underground, the rocks in the ground would help keep the system compressed and speed up the chain reaction [Taubes, 1995]. A chain reaction formed underground could then generate huge amounts of energy in a fraction of a second, resulting in a nuclear blast. A nuclear explosion of this magnitude would emit large amounts of radioactivity into the air and ground water. Another safety concern is the possibility of a volcanic eruption in Yucca Mountain. The long-term nuclear waste storage facility needs to remain stable for at least 10,000 years to allow the radioactive isotopes to decay to natural levels [Clark, 1997]. There are at least a dozen young volcanoes within 40 kilometers of the proposed Yucca Mountain waste site [Weiss, 1996]. The proximity of Yucca Mountain to these volcanoes makes it possible to have a volcanic eruption pass through the spent fuel waste repository. Such a volcanic eruption could release damaging amounts of radioactivity to the environment.Objectives I propose to review the available literature about using Yucca Mountain as a possible repository for spent nuclear fuel. In this review I will achieve the following two goals: (1) explain the criteria for a suitable repository of high-level radioactive waste; and (2) determine whether Yucca Mountain meets these criteria. According to the Department of Energy (DOE), a repository for high-level radioactive waste must meet several criteria including safety, location, and economics [Roush, 1995]. Safety includes not only the effect of the repository on people near the site, but also people along the transportation routes to the site. In my research I will consider both groups of people. As far as location, a waste site cannot be in an area with a large population or near a ground water supply. Also, because one of the most significant factors in determining the life span of a possible repository is how long the waste storage canisters will remain in tact, the waste site must be located in a dry climate to eliminate the moisture that can cause the waste canisters to corrode. The economics involved in selecting a site is another criterion. At present, the Department of Energy (DOE) has spent more than 1.7 billion dollars on the Yucca Mountain project [Taubes, 1995]. For that reason, much pressure exists to select Yucca Mountain as a repository site; otherwise, this money would have been wasted. Other costs, though, have to be considered. For instance, how economical is it to transport radioactive waste across several states to a single national site? I will try to account for as many of these other costs as possible. After explaining the criteria, I will assess how well Yucca Mountain meets those criteria. In this assessment, I will not assign a numerical score for each criterion. Rather, I will discuss qualitatively how well Yucca Mountain meets each criterion. In some situations, disagreement exists among experts as to how well Yucca Mountain meets a criterion. In such cases, I will present both sides. In this assessment, only Yucca Mountain will be considered as a possible site. Although many sites in the United States could meet the DOE's established criteria, I will consider only Yucca Mountain because the DOE is considering only Yucca Mountain [Taube, 1995].Plan of Action This section presents my plan for obtaining the objectives discussed in the previous section. There has been an increase of interest in the nuclear industry concerning the Yucca Mountain site because of the January 1,1998, deadline for the DOE. Several journal articles and papers discussing the possibility of Yucca Mountain as a spent fuel repository in our near future have surfaced as a consequence of that interest. These articles and books about the dangers of nuclear waste should provide sufficient information for me to complete my review. The following two paragraphs will discuss how I will use these sources in my research. The first goal of my research is to explain the criteria for determining whether a nuclear waste repository is suitable. For example, will the rock structure be able to withstand human invasion in the future [Clark, 1997]? What will happen if the waste containers corrode and do not last as long as predicted? Will the natural setting contain the waste? To achieve this goal, I will rely on "Background on 40 CFR Part 197 Environmental Standards for Yucca Mountain" [Clark, 1997], the DOE Yucca Mountain home page [1997], and the book Understanding Radioactive Waste [Murray, 1989]. A second goal of my literature review is to evaluate Yucca Mountain meets those criteria. I will base my evaluation on the sources mentioned above as well as specific Environmental Protection Agency standards. I also intend to research the validity of possible environmental disasters, such as the explosion theory. To accomplish this goal, I will rely on the paper presented by Clark [1997], and on the book Blowup at Yucca Mountain [Taubes, 1995]. Because engineering students are the primary audience for my proposed research topic and may not be familiar with the history of nuclear waste, I will provide a background on past methods used for waste storage. People in the nuclear field with some knowledge of the waste problem facing the industry may be a secondary audience.Management Plan This section presents my schedule, costs, and qualifications for completing the proposed research. This research culminates in a formal report, which will be completed by December 5, 1997. To reach this goal, I will follow the schedule presented in Figure 1. Since I already possess literature on the subject of Yucca Mountain as a nuclear waste site, most of my time will be spent sorting through the literature to find key results, and presenting those results to the audience. Figure 1. Schedule for completion of the literature review. The formal presentation will be on October 27, and the formal report will be completed by December 5. Given that all my sources are available through the University of Wisconsin library system, there is no appreciable cost associated with performing this review, unless one takes into consideration the amount of tuition spent on maintaining the university libraries. The only other minor costs are photocopying articles, creating transparencies for my presentation, printing my report, and binding my report. I estimate these expenses will not exceed $20. I am a senior in the Engineering Physics Department at the University of Wisconsin at Madison, majoring in nuclear engineering and physics. I have taken several classes related to nuclear waste, economics, and environmental studies. I believe that these courses will aid me in preparing the proposed review. For further information about my qualifications, see the attached resume.Conclusion More than 30,000 metric tons of nuclear waste have arisen from U.S. commercial reactors as well as high level nuclear weapons waste, such as uranium and plutonium [Roush, 1995]. This document has proposed research to evaluate the possibility of using Yucca Mountain as a possible repository for this spent nuclear fuel. The proposed research will achieve the following goals: (1) explain the criteria necessary to make a suitable high level radioactive waste repository, and (2) determine if Yucca Mountain meets these criteria. The research will include a formal presentation on November 11 and a formal report on December 5.References Clark, Raymond L., "Background on 40 CFR Part 197 Environmental Radiation Protection Standards for Yucca Mountain," Proceedings of the 1997 Waste Management Conference (Washington, D.C.: U.S. Environmental Protection Agency, 1997). Kerr, R., "New Way to Ask the Experts: Rating Radioactive Waste Risks," Science, vol.274, (November1996), pp. 913-914. Murray, Raymond L., Understanding Nuclear Waste (Battelle Press, 1989). Roush, W., "Can Nuclear Waste Keep Yucca Mountain Dry-and Safe?" Science, vol. 270, (December 1995), pp. 1761-1762. Taubes, G., "Blowup at Yucca Mountain," Science, vol.268, (June 1995), pp. 1836-1839.
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Abstract: Death and eternity are the major themes in most of Emily Dickinson’s poems.“ Because I could not stop for death ”is one of her classic poems. Through the analysis, this essay clarifies infinite conceptions by the dialectical relationship between reality and imagination, the known and the unknown. And it tells what’s eternity in Dickson’s eyes. Keywords: death, eternity, finite, infinite Introduction Emily Dickinson（1830-1886）, the American best-known female poet ，was one of the foremost authors in American literature. Emily Dickinson ’s poems, as well as Walt Whitman’s, were considered as a part of "American renaissance"; they were regarded as pioneers of imagism. Both of them rejected custom and received wisdom and experimented with poetic style. She however differs from Whitman in a variety of ways. For one thing, Whitman seems to keep his eye on society at large; Dickinson explores the inner life of the individual. Whereas Whitman is "national" in his outlook, Dickinson is "regional" Emily Dickinson was born in Amherst, Massachusetts, on December 10,1830. She lived almost her entire life in the same town (much of it in the same house), traveled infrequently, never married, and in her last years never left the grounds of her family. So she was called "vestal of Amherst". And yet despite this narrow -- some might say -- pathologically constricted-outward experience, she was an extremely intelligent, highly sensitive, and deeply passionate person who throughout her adult life wrote poems (add up to around 2000 ) that were startlingly original in both content and technique, poems that would profoundly influence several generations of American poets and that would win her a secure position as one of the greatest poets that America has ever produced. Dickinson’s simply constructed yet intensely felt, acutely intellectual writings take as their subject issues vital to humanity: the agonies and ecstasies of love, sexuality, the unfathomable nature of death, the horrors of war, God and religious belief, the importance of humor, and musings on the significance of literature, music, and art. Emily Dickinson enjoys the King James Version of the Bible, as well as authors such as English WRTERS William Shakespeare, John Milton, Charles Dickens, Elizabeth Barrett Browning, George Eliot, and Thomas Carlyle. Dickinson’s early style shows the strong influence of William Shakespeare, Barrett Browning, Scottish poet Robert Browning, and English poets John Keats and George Herbert. And Dickinson read Emerson appreciatively, who became a pervasive and, in a sense, formative influence over her. As George F. Whicher notes, "Her sole function was to test the Transcendentalist ethic in its application to the inner life". 1“death” in Emily Dickinson’s poets For as long as history has been recorded and probably for much longer, man has always been different idea of his own death. Even those of us who have accepted death graciously, have at least in some way, --- feared, dreaded, or attempted to delay its arrival. We have personified death-- as an evildoer dressed in all black, its presence swoops down upon us and chokes the life from us as though it were some street murder with malicious intent. But in reality, we know that death is not the chaotic grim reaper of fairy tales and mythology. Rather than being a cruel and unfair prankster of evil, death is an unavoidable and natural part of life itself. Death and immorality is the major theme in the largest portion of Emily Dickinson’s poetry. Her preoccupation with these subjects amounted to an obsession so that about one third of her poems dwell on them. Dickinson’s many friends died before her, and the fact that death seemed to occur often in the Amherst of the time added to her gloomy meditation. Dickinson’s is not sheer depiction of death, but an emphatic one of relations between life and death, death and love, death and eternity. Death is a must-be-crossed bridge. She did not fear it, because the arrival in another world is only through the grave and the forgiveness from God is the only way to eternity.
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首先来看一篇好的Proposal需要有哪些内容 :•清楚的定义主题，展示你感兴趣的研究领域和目的；•展示你已经确定并开始对Topic和Aims的研究；•证明你了解研究该如何进行；•流利的英文，清晰的结构和适当的标题，使文章看起来更加专业；•Reference格式必须严格按照学校的要求，并且记录下所有文中用到的引用。Proposal和Dissertation有什么关系?如果你在英国、美国和澳大利亚这些西方教育体系国家留学的话，那么你在大二或毕业论文之前，你就会被要求写Proposal，这可能会用于Dissertation的大纲，甚至有些学校还会将Proposal的成绩记录到毕业论文的总分。这时一篇好的Proposal就非常重要，这直接会影响到您毕业论文的最终成绩。接下来为大家分析为什么需要写Proposal.Proposal完成的质量直接能够证明你对某个领域的深层研究，并有助于导师了解你的兴趣所在.下面这四点是要求写proposal的原因:•提升对一个调查的设计和思考的能力•了解如何对文献综述进行全面的审查，以确保要研究的问题没有明确的答案(因为有明确答案的研究问题，就没有进行研究的必要了)•提高研究和写作能力•训练逻辑能力，在一个复杂的调查项目中，达到最后的目标不是件容易的事情最后再给大家说说Proposal写作的大纲.一般情况下，大学要求Proposal的字数在2000-3000字之间，包含总共7个部分:1、Title (Proposal标题)标题需要简明, 准确的解释你提出的研究重点.2、Introduction (介绍部分)开头部分需要包括对文章大体的介绍，研究的方向，目标等来吸引导师的兴趣。3、Justification/Rationale (研究理由)•对以前该方面研究的概述•这个研究是否值得花时间和金钱•研究问题的说明4、Aims (研究目标)•简短的说明你的研究目标•Aims应该是对Topic的缩小，可以集中去实现和管理5、Literature review (文献综述)在这个部分需要展现你对Topic和相关话题的熟悉，从而来说服导师，建议：•不要选择已经研究过的Topic, 确保研究的话题是未知的，有研究意义的•与现存在的知识保持一致的立场6、Methodology (方法论)此章节需详细介绍你打算如何展开研究•你将在这篇文章中使用什么技术或方法，为什么使用它？为什么不是别的方法？•对研究和分析方法的讨论7、References (引用)所有正文里引用的资料的列表，同学们需要注意References格式的正确，这点已经不用多做强调，任何形式的论文都是如此。
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