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科技論文范文3000字英文，英語科技論文

來源：整理時間：2023-06-13 04:05:22 編輯：智能門戶手機版

1，英語科技論文

文獻是原始文獻的代表，它提供了原始文獻的信息內(nèi)容，但不能代替原始文獻（即一次文獻），因為其內(nèi)容已大大簡化。　　文獻本身給讀者一個信息，即該篇文獻所包含的主要概念和討論的主要問題，幫助科技人員決定這篇文獻對自己的工作是否有用。　　《美國工程索引》（The Engineering Index）是世界最有名也是最大的檢索刊物之一。每月出版一期月刊，報導(dǎo)世界工程文獻文摘一萬三千至一萬四千條，每期有刊附的主題索引與作者索引，每年還另出版年卷本和年度素引，年度索引還增加了作者單位索引，出版形式有印刷版（期刊形式），電子版（磁帶）及縮微膠片，曾出版過檢索卡片，已于75年停止發(fā)行。　　文摘的種類（Type of Abstracts）　　按美國工程信息公司編輯部（Ei編輯部）的分類，文摘分為指示性文摘與信息性文摘，或者兩者結(jié)合的文摘。　　信息性文摘（Information Abstracts）一般包括了原始文獻某些重要內(nèi)容的梗概，主要由以下三部分組成：　?。?）目的：主要說明作者寫此文章的目的，或說本文主要要解決的問題?！　。?）過程及方法：主要說明作者主要工作過程及所用的方法，也包括眾多的邊界條件，使用的主要設(shè)備和儀器?！　。?）結(jié)果：作者在此工作過程最后得到的結(jié)果和結(jié)論，如有可能，盡量提一句作者所得結(jié)果和結(jié)論的應(yīng)用范圍和應(yīng)用情況。　　信息性文摘多用于科技雜志或科技期刊的文章，也用于會議錄中的會議論文及各種專題技術(shù)報告。　　指示性文摘（Indicated Abstracts）僅指出文獻的綜合內(nèi)容，適用于綜述性文獻，圖書介紹及編輯加工過的專著等。綜述性文獻最常見的如某技術(shù)在某時期的綜合發(fā)展情況；或某技術(shù)在目前的發(fā)展水平，及未來展望等。總之這種文獻是綜述情況而不是某個技術(shù)工藝，某產(chǎn)品，或某設(shè)備的研究過程。　　一般情況下信息性文摘占有絕大部分比例。文章由www.abclunwen.com 提供

英語科技論文

2，一篇關(guān)于it的英語科技文章

Information technology (IT), as defined by the Information Technology Association of America (ITAA), is "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and securely retrieve information.Today, the term information has ballooned to encompass many aspects of computing and technology, and the term has become very recognizable. IT professionals perform a variety of duties that range from installing applications to designing complex computer networks and information databases. A few of the duties that IT professionals perform may include data management, networking, engineering computer hardware, database and software design, as well as the management and administration of entire systems. Information technology is starting to spread farther than the conventional personal computer and network technology, and more into integrations of other technologies such as the use of cell phones, televisions, automobiles, and more, which is increasing the demand for such jobs.When computer and communications technologies are combined, the result is information technology, or "info-tech". Information technology is a general term that describes any technology that helps to produce, manipulate, store, communicate, and/or disseminate information.

一篇關(guān)于it的英語科技文章

3，求一篇英語科技小論文

給你幾個網(wǎng)址把，天下可沒有那么好的事情哦，自己找把，希望被采納一、綜合類 1、藍之韻論文 http://www.21blue.com 門類較全。 2、學(xué)生大論文中心 http://www.studa.com/newpaper/ 3、蜂朝無憂論文網(wǎng) http://www.51lunwen.com/main/index.asp 門類很全。論文下載中心 http://www.studa.net/paper/

A Flow Shop with Compatibility Constraints in a Steelmaking Plant* Abstract We present a scheduling methodology for applications where the generation of schedules is constrained by antagonistic and vague knowledge. Besides temporal and capacity constraints, compatibility constraints between consecutive jobs are managed. We model the vague constraints and uncertain data by fuzzy set theory. The importance of single jobs and the difficulty to schedule them is defined on the different constraints and is used to control the generation of schedules. A preliminary schedule is generated by considering the important jobs and those that are difficult to schedule first. Easy or not so important jobs are scheduled later. Finally, the achieved schedule is “repaired” until a schedule is found that achieves a given level of satisfaction. Since the goodness of solutions is rated by fuzzy sets, robust schedules achieve better evaluations than weak schedules. However, if no robust solution is found constraints will be relaxed. This methodology is appropriate for applications in process engineering where uncertain knowledge is dominant. We explain the methodology with a case study from a steelmaking plant for high-grade steel流動性約束與鋪在煉鋼廠* 摘要我們提出一個調(diào)度方法的應(yīng)用產(chǎn)生的時間表而受到限制對立和模糊的知識。除了時間和能力的限制，兼容性限制之間連續(xù)工作的管理。我們模型的模糊和不確定的制約因素數(shù)據(jù)的模糊集理論。單一的重要性和困難的工作安排次時間是指在不同的制約因素，是用來控制生成的時間表。初步安排是考慮到所產(chǎn)生的重要的工作和那些有困難的時間表第一。容易或不那么重要的工作計劃之后。最后，實現(xiàn)的時間表是“修復(fù)” ，直到一個時間表，發(fā)現(xiàn)達到某一特定的滿意程度。因為善良的解決方案是評價模糊集，強大的時間表實現(xiàn)更好的評價比弱時間表。但是，如果沒有強有力的解決辦法是找到制約將會放寬。這種方法適合于工程應(yīng)用過程中在不確定性知識為主。我們解釋方法，個案研究從煉鋼廠的高檔鋼材。但愿能幫到你，希望采納！