美國留學(xué)申請書樣本

　　如今越來越多人選擇出國留學(xué)，出國留學(xué)的重要環(huán)節(jié)之一就是要做好留學(xué)申請書的準(zhǔn)備，很多同學(xué)不知道如何下手。今天，小編跟大家分享一下美國留學(xué)申請書的樣本!

　　申請專業(yè)：金融工程

　　在我看來金融工程是一種創(chuàng)新、創(chuàng)造技術(shù)，一種對金融工具、金融手段和系統(tǒng)的創(chuàng)造和創(chuàng)新技術(shù)，一種平衡收益和風(fēng)險的技術(shù).它包含了數(shù)學(xué),計算機(jī),金融方面的知識,是一門充滿了趣味的交叉學(xué)科,而數(shù)學(xué)知識和數(shù)學(xué)模型是這個學(xué)科中必不可少的核心內(nèi)容：馬科維茨的投資組合選擇理論，夏普的資本資產(chǎn)定價模型，Black-Scholes的期權(quán)定價模型以及考克斯等人的“二項式”模型正是這種核心地位的體現(xiàn)。

　　In my opinion, the Financial Engineering is a kind of creative technology to the Financial Instruments, Financial Means and system. It used to balance the benefits and venture as an interesting interdisciplinary subject. It covers many fields such as mathematics, computer science and finance, in which the mathematics and mathematical modeling are the two main aspects of the Financial Engineering. The Investment Portfolio Theory of Markowitz, the capital asset pricing model of the Sharp, Option Pricing Model of Black-Scholes and “Binomial” model of Cox can best reflect the critical position of the two subjects.

　　我有幸選擇了數(shù)學(xué)與應(yīng)用數(shù)學(xué)這個專業(yè)，在三年和它的接觸了解中，使我對數(shù)學(xué)，尤其對數(shù)學(xué)建模有了較深的理解和體會。(記得第一次去聽清華大學(xué)XX系姜啟源教授的講座,他在講座上舉了一個“現(xiàn)實生活中的數(shù)學(xué)”例子：“1公斤面, 1公斤餡, 包100個餃子;若餡比 1公斤多, 應(yīng)多包幾個, 還是少包幾個呢? ” 是這個生動、形象、富于生活氣息的包餃子問題把我領(lǐng)進(jìn)了數(shù)學(xué)建模的世界。)

　　I am glad to choose mathematics and applied mathematics. Three years’ study had deepened my understanding of them, especially of mathematical modeling. (It still occurs to me when I went to attend the class of XX department given by Professor Jiang qiyuan in Tsinghua University for the first time. “1 kilogram of flour added with 1 kilogram of stuffing can make 100 dumplings, but what if the stuffing is more than 1 kilogram?” He used a very simple, vivid and interesting example which aroused my interest and led me into the mathematical modeling world.

　　第一次和數(shù)學(xué)建模親密接觸是在05年的暑假，我有幸參加了學(xué)校組織的數(shù)學(xué)建模培訓(xùn)。經(jīng)驗豐富的數(shù)學(xué)老師們通過實實在在的例子告訴我們什么是數(shù)學(xué)建模。給我印象最深的是一個關(guān)于SARS的例子：2003年，SARS爆發(fā)并在世界范圍內(nèi)傳播，嚴(yán)重影響到我國經(jīng)濟(jì)發(fā)展和人民生活，定量的研究SARS的傳播規(guī)律并建立數(shù)學(xué)模型預(yù)測和控制傳染病蔓延成為數(shù)學(xué)工作者必須解決的問題……于是Logistic回歸便成為我永恒的記憶。為期2周的數(shù)學(xué)建模培訓(xùn)，給我留下的不僅是一個個經(jīng)典的數(shù)學(xué)模型，更重要的是一份澎湃的激情和一份冷靜的思考：數(shù)學(xué)和數(shù)學(xué)建模是人類的守護(hù)神，因為有了她的存在，人類的生存和發(fā)展才有條不紊的繼續(xù)著;那么當(dāng)SARS病毒肆無忌憚時，當(dāng)AIDS病毒肆意侵蝕人們?nèi)怏w時，一個熱愛數(shù)學(xué)、熱愛數(shù)學(xué)建模，更加熱愛生命的人能夠做些什么?

　　The first time I kissed the mathematical modeling was in the summer vacation of 2005, when I got a good opportunity to attend the mathematical modeling training organized by our school. Seasoned mathematics teachers told me what on earth the mathematical modeling is through some existing examples, in which the one about SARS impressed me most. In 2003, SARS broke out and shrouded rapidly to the whole world, which imperiled our economic development and people’s living. Therefore, study on its spreading regularity and building the mathematical modeling for predicting and controlling its extension had become the “Archimedes Heels” for all mathematicians… So, the Logistic regression has been carved in my memory. Two weeks’ training has presented me with a kind of passion and calm thinking much more than just those classical mathematical models. As the patron saint of our human-beings, the existence of Mathematics and mathematical modeling are maintaining our subsistence and development. Then, when SARS ran riot, when we are suffering from the pain of AIDS, what can I do as a mathematics and mathematical modeling lover who loves life so much?

　　懷著這份激情和思考，在大二的秋天，我第一次嘗試了運(yùn)用數(shù)學(xué)建模的知識去解決實際問題，我和另外兩名隊員代表學(xué)校參加了全國大學(xué)生數(shù)學(xué)建模比賽。比賽要求結(jié)合數(shù)據(jù)對長江水質(zhì)做出定量評價，分析各地區(qū)的水質(zhì)污染;并對未來長江水質(zhì)污染發(fā)展趨勢做出預(yù)測分析，制定污水處理計劃。長達(dá)17頁的數(shù)據(jù)和多個評價指標(biāo)對我們來說著實是個挑戰(zhàn)!究竟應(yīng)該選擇哪些數(shù)據(jù)?怎樣綜合考慮多個指標(biāo)?我們嘗試了近一天，推翻了以前建立的種種模型，有好幾次都被弄得想要放棄，是隊友間的相互鼓勵的力量和鍥而不舍的精神讓我們最終找到了自己滿意的模型：綜合指數(shù)法模型評價長江水質(zhì)，既體現(xiàn)水質(zhì)的各種評價因子，又能反映主要污染物對水質(zhì)的突出作用;通過多元線性回歸擬合預(yù)測未來水質(zhì)污染，建立線性優(yōu)化模型，制定污水處理計劃。我們小組的參賽論文獲北京市二等獎。三天三夜的建模經(jīng)歷，那份澎湃的激情已經(jīng)漸漸平息，取而代之的是更加冷靜的思考：數(shù)學(xué)建模創(chuàng)造、創(chuàng)新，成功地解決問題依賴于扎實的數(shù)學(xué)基礎(chǔ)知識和過硬的數(shù)學(xué)建模能力;依賴于不拘一格的創(chuàng)新思維和創(chuàng)造能力;還依賴于對多方面知識的了解和積累。

　　Pocketed with this passion and thinking, I tasted to use mathematical modeling into practice and solve the practical problems by attending the National College Mathematical Modeling Contest with the other two schoolmates on behalf of our college. It required us to evaluate the water quality of Changjiang River according to the data, through which we had to analyze the water pollution in every region and predict the trend of it in the future. Finally we had to bring out the plan against it. It was really a challenge for us towards flood of data and estimations as long as 17 pages. We tried almost a whole day only to filter those data and take the evaluations into comprehensive account. Pulling down various models we had built before, we were so defeated that we wanted to give up many times. However, we finally found the satisfactory model thanks to our encouragement to each other which armed us with full strength to go further.We managed to evaluate the water quality by Composite index model, which could not only represent the evaluation factors, but also reflect the main impacts of the contaminations to the water pollution. We predicted the future water pollution through multiple linear regressions fitting and brought out the plan against it by building linear optimization model. Finally, we got the second prize in Beijing for our thesis. Three days’ and nights’ modeling experience had cooled our passion and gave us even more calm thinking instead. The creation of the mathematical modeling, along with the successful solution to the problems through it lied on the solid mathematics foundation, strong modeling ability, accumulation of the knowledge on different fields, unique creative ideas and creativity.

　　參加數(shù)學(xué)建模比賽的經(jīng)歷更加激發(fā)起我的學(xué)習(xí)興趣，使我在學(xué)習(xí)數(shù)學(xué)理論的同時更加注重它們的應(yīng)用性。除此之外，我抓住一切可能的機(jī)會再次參加實際的數(shù)學(xué)建模。大三的上學(xué)期，我有幸參加了為期3天的電工數(shù)學(xué)建模實習(xí)：給某大型運(yùn)動會比賽項目排序。由于對圖論知識很熟悉，我很快將問題轉(zhuǎn)化為尋找最佳Hamilton回路。接近87億種不同的排序的數(shù)據(jù)量，比上次的全國數(shù)模競賽更大，我的算法運(yùn)行時間相當(dāng)長而且運(yùn)行的結(jié)果也很不理想。這種情況的`發(fā)生不僅僅沒有打消我的積極性,反而使我的情緒高漲,這是人生中難得的自我考驗,自我提高的機(jī)會!通過查詢資料改用遺傳算法，運(yùn)行時間和結(jié)果都大大提高.最后成功地完成這次實習(xí).這次實習(xí)給我的感觸很大，一個數(shù)學(xué)模型是否能夠完美地解決實際問題還要考慮其運(yùn)算成本，實際問題不僅需要一個成功的模型還需要一個快速有效的算法。

　　The experience from this contest further aroused my interest in mathematics. I began to pay more attention to its application as well as learning the theories. In addition, I tried to catch every opportunity to take part in the practical mathematical modeling. My efforts finally rewarded when I was in the first term as a junior. I had a chance to participate in the 3-day electrician mathematical modeling practice-----classifying the sports programs for a big sports meeting. Being familiar with the Graph Theory, I immediately found the way to solve the problems by seeking the best Hamilton circuit line. Facing the nearly 8.7 billion data files with different orders much more than that on the National Mathematical Modeling Contest, I spent a long time on Algorithm without any perfect result. I wasn’t defeated towards this case, but so excited instead that I could have such a chance to challenge and improve myself. Looking up dozens of files, I finally made a perfect end of the practice by using the Genetic Algorithm into full account. It needs both a successful model and an effective arithmetic to solve these problems. , which largely shortened the operation time and improved the operation result. I learnt a lot from this practice. I came to know that to build successful mathematics modeling that can effectively solve the practical problems, we must take the operation cost

　　電工數(shù)模實習(xí)結(jié)束后，濃厚的學(xué)習(xí)興趣和電工數(shù)學(xué)實習(xí)的教訓(xùn)促使我和數(shù)學(xué)系、計算機(jī)系幾名同學(xué)共同籌劃并創(chuàng)建“數(shù)學(xué)建模沙龍”，將計算機(jī)算法和數(shù)學(xué)模型共同作為沙龍的主題。每周二下午，我們會組織有興趣的同學(xué)一起，以傳授經(jīng)驗、分享心得、共同思考、共同討論的方法學(xué)習(xí)和交流數(shù)學(xué)思想和算法。傳統(tǒng)的運(yùn)輸問題、儲存問題和新興的模擬退火算法、螞蟻算法都曾成為我們的討論話題。通過這個活動我從數(shù)學(xué)系和計算機(jī)系的同學(xué)身上分享了更多的知識,他們的思維方式,處理問題的方法!到目前為止這個活動仍然在進(jìn)行著,參加的人數(shù)也越來越多.帶動了學(xué)校的一個學(xué)習(xí)熱潮,我為此感到非常的興奮!

　　Summarizing my failures in the mathematical modeling electrician practice and proceeding from my interest in this field, I began to think of collaborating on the “Mathematical Modeling Saloon” with several students from mathematics and computer departments, taking the Computer Algorithms and mathematical modeling as the two themes of the book. Every Tuesday afternoon, we would organized those students interested in this field to study and exchange the ideas and arithmetic by imparting experience, sharing what we learnt, pondering together and discussing with each other. Both the traditional transportation & storage problems and the modern Stimulated Annealing Arithmetic (SAA), Ant Algorithm have ever been the topic of our discussion, from which I have learnt many thinking styles and methods to the problems from the students both in mathematics and computer department. So far, I am excited to see that this activity is still in the wind with more and more participants and it aroused a learning upsurge in our college.

　　在老師的推薦下，大三暑假，我參加了邢永麗老師的教學(xué)改革項目——“提高數(shù)學(xué)課堂教學(xué)質(zhì)量”的結(jié)果分析。04-05年，邢老師在她和其他幾個數(shù)學(xué)老師的任課班級上做了課堂互動的教學(xué)實踐，其數(shù)據(jù)大多以調(diào)查問卷等文字形式出現(xiàn)。此模型的特點(diǎn)讓我馬上聯(lián)想到模糊數(shù)學(xué)定量分析模型，但敢于嘗試新模型的念頭讓我最后選擇了AHP層次分析法。通過量化數(shù)據(jù)，應(yīng)用AHP層次分析法定量分析老師的綜合素質(zhì)、授課技巧等因素在師生互動、提高數(shù)學(xué)課堂教學(xué)質(zhì)量中所起的作用，得出教師的授課技巧和課堂問題設(shè)置在課堂互動中所占分量最重的結(jié)論，并和邢老師合作完成《層次分析法在課堂互動教學(xué)效果評價中的應(yīng)用》論文，邢老師和我對論文都非常滿意，已向多個期刊投稿并有望發(fā)表。

　　Recommended by my teacher, I have participated in the Teaching Reform Program of Mrs. Xing yongli----the results analysis of “Improving the mathematics teaching quality on class”. Mrs. Xing, along with some other mathematics teachers experienced the class mutual activities in 2004 to 2005 with the character data files in form of paper investigations. For this style of data files, I finally used the Analytic Hierarchy Process (AHP) as a creative challenge instead of the fuzzy mathematical quantitative analysis models, which firstly knocked my mind. By quantitating data and using the AHP, I succeeded in analyzing how the overall quality of the teachers and their teaching skills work in improving the mathematics teaching quality on class, from which we got the conclusion that the teaching skills and the way to put forward questions on class play the most important role in the class mutual activities. Besides, Mrs. Xing collaborated with me on the thesis named “The Application of Analytic Hierarchy Processinto the Evaluation of Class Mutual Activities”. Both of us were satisfied with this thesis and contributed it to many presses to be published.

　　和數(shù)學(xué)建模一樣，金融工程的靈魂是創(chuàng)新思維和創(chuàng)造能力，而數(shù)學(xué)和數(shù)學(xué)建模知識在金融工程的應(yīng)用更讓我對這門學(xué)科充滿了興趣;更s重要的是，金融工程技術(shù)能給人們的生活、社會的穩(wěn)定、國家的發(fā)展做出重要貢獻(xiàn)，我想這個也更加符合我學(xué)習(xí)數(shù)學(xué)建模的初衷。

　　Similar with the mathematical modeling, the soul of the Financial Engineering is also the creativity. Therefore, the perfect application of the mathematics and mathematical modeling into the Financial Engineering once more surged my enthusiasm in this field. Furthermore, the Financial Engineering plays the important part in people’s living, social stability and the national development, which is my original intention to choose this field I think.

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