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毕业设计论文英文参考文献

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毕业设计论文英文参考文献

英文参考文献格式要求有哪些

每个学校对于论文格式的要求标准都有不同,我们在提交论文之前,一定要按照学校要求是写英文参考文献,这样才能给导师留下良好的印象,也可以为大家修改论文省去很多麻烦。以下是我精心整理的英文参考文献格式要求有哪些,希望对大家有所帮助。

参考文献是学术论文的重要组成部分,它标识论文中引用资料的来源,是作者对他人研究成果中的理论、观点、资料和方法的引用(含直引、意引等)和借鉴,能反映一篇学术论文的科学性、先进性和完整性,增大论文包涵的信息,间接展示作者观点所处的位置或角度等。参考文献作为对科研成果社会影响进行统计的一项重要指标,越来越受到重视。参考文献的标注与论文的撰写一样,也应是一项十分严谨的工作,但从目前编辑部收到的稿件来看,由于作者对标注要求了解不够,提供的资料不完整、不规范、存在错漏等问题时有发现,尤其是英文参考文献的标注,不规范之处就更多,给编辑后期加工带来一定困难。而现行的国家有关文献编写与出版的标准、法规文件的规定中,有关英文参考文献标注的规定也不甚明确,因而,有必要对此加以讨论,统一认识,以提高信息传递的准确性、完整性和规范性。

一、学术论文英文参考文献标注格式。

按照现行规定,学术期刊中论文参考文献的标注采用顺序编码制,即在文内的引文处按引用文献在论文中出现的先后顺序以阿拉伯数字连续编码,序号置于方括号内。同一文献在一文中被反复引用者,用同一序号标示。这一规定使得所列文献简洁明了,应该引起论文作者注意。英文参考文献和中文参考文献一样,按在文中出现的先后顺序与中文文献混合连续编码着录;英文文献用印刷体;英文书名、期刊名和报纸名等用斜体;所列项目及次序与中文文献相同,但文献类型可不标出;忌用中文叙述英文。其格式为:

专着、论文集、学位论文、报告-[序号]主要责任者。文献题名。出版地:出版者,出版年。起止页码(任选)。

期刊文章-[序号]主要责任者。文献题名。刊名,年,卷(期):起止页码。

论文集中的析出文献-[序号]析出文献主要责任者。析出文献题名。原文献主要责任者(任选)。原文献题名。出版地:出版者,出版年。析出文献起止页码。

报纸文章-[序号]主要责任者。文献题名。报纸名,出版日期(版次)。

示例:[4] Lgnatieff,M. Keeping an old flame burning brightly. The Guardian,1998- 12- 20(12)。

电子文献-[序号]主要责任者。电子文献题名。电子文献的出处或可获得的地址,发表或更新日期。

示例:[5] Baboescu,F. Algorithms for fast packet classification.

.

二、关于英文人名的标注。

现行编排规范对英文人名如何标注未作明确要求,英文人名的标注较为混乱,有标注全名的,有标注时将名缩写、姓不缩写、保持原来顺序的,还有在姓、名之间加圆点的,后者是我国翻译作品中,中文书写外国人名经常采用的一种方式。其实,标注英文人名是有章可循的,在国外学术着作的参考文献中,关于人名的标注已约定俗成为一种统一的格式,即英文参考文献标注作者姓名时,要求姓在前、名在后,姓与名之间用逗号隔开,姓的词首字母大写,其余字母不大写;名用词首大写字母表示,后加缩写符号圆点,缩写符号不可省略。由于欧美国家人的姓名排列一般是名在前、姓在后,在标注时必须加以调整。如Georg Paghet Thomson,前面两个词是名,最后一个词是姓,应标注为Thomson,G. P为什么要如此标注呢?笔者认为有以下原因。

1.在应用计算机等信息工具进行英文文献检索时,以英文作者姓名中的姓作为依据之一,即以姓作为检索目标之一。

2.在欧美人姓名表达含义里,姓比名的重要性更强、更正式。用姓而不是名来代表作者,还有尊重、礼貌的意味。名缩写后加缩写符号圆点,也含有正式、尊重和礼貌的意味,缩写符号不可省略。

3.表示与平常书写姓名的不同,体现学术论文重要性、简约性和准确性的要求,符合科研论文文体风格。这种标注在英文学术着作、科技文献中已广泛采用,也容易被广大读者、作者理解、接受。

对于复姓情况,如Jory Albores-Saavedra等,在引用标注时,应将复姓全部写出,即Albores-Saavedra, J对于姓前带有冠词或介词的情况,如带有Mac,Le,Von,Van den等,标注时不能省略,应同姓一起提到前面标注,如Mac Donald,La Fontaina,Von Eschenbach,Van den Bery等。这里有个有趣的现象,对于北欧人常见的.姓Van den Bery,如Van的词首字母大写,表示它是姓的一部分,标注时应与姓一起前置;如果作者姓名书写为Graham van den Bery,其中van的词首字母v没有大写,则表示它不是姓的一部分,姓Bery前置时,van den仍留在原来的位置,并且不可缩写或省略,标注为Bery,G. van den.另外,对于“姓名+学位”的情况,标注时一般把“学位”删去,不要将其误认为姓或姓的一部分.

三、关于英文参考文献发表(出版)时间标注到年的问题。

发表(出版)时间是参考文献的一项重要内容,标示引用文献发表的历史时间位置,是判断引用文献新旧的一个根据,不可遗漏。国外学术论着中参考文献的发表(出版)时间标注到年,这与我国学术论着中参考文献的标注规定相同。国外学术论着中参考文献的发表(出版)时间的标注位置有标注在作者后的情况,并加圆括号,这是因为采用了“着者-出版年”制。我国学术期刊编排规范参考文献的标注采用“顺序编码”制,发表(出版)时间标注靠后,如示例[1]、[3],应按此要求标注为是。

四、英文析出文献名和原文献名的标注。

由于现行编排规范对英文析出文献和原文献的标注书写要求不够明确,目前有把析出文献名排成斜体,而把原文献名(论文集名或期刊名等)排成正体的情况。这种标注方式是不对的,混淆了析出文献名和原文献名的效力,正确的编排要求与此相反,国外的普遍作法与我国学者的论述[4]要求一致,因此这一现象值得编辑同行注意。

英文书名在英文文章中出现有排成斜体的习惯,论文集名、期刊名或报纸名与书名效力相同,故排成斜体,析出文献名相当于书中的章节标题,不具有书名的分量,故不可排成斜体。

文献类型不宜标出。文献类型是我国编排规范制定的标注要求,国外并未采用。在中文中标注醒目、自然,在英文中此一项目的标注容易产生误解和干扰。如果是为方便计算机在检索或统计时辨识,是技术上的要求,那么就应当统一要求标注,从“可不标出”来看,尚未有技术上的要求。因而,文献类型在英文参考文献中不作标注为妥。

五、出版地和出版社(商)的标注。

出版地和出版社(商)是参考文献的重要内容,标示版权信息,不可遗漏或省略。我国一部着作一般由一家出版社负责出版发行,出版地一般也就比较明确为出版社所在的城市。国外情况就比较复杂了,由于市场经济高度成熟,语言通用程度高,着作权被普遍保护等原因,一部着作可能由不止一家出版社(商)合作出版发行,出版地也可能在不同国家的不同城市。当出版地有两处或两处以上、出版社(商)有两个或两个以上时,应当一一标出,中间用斜杠分开。如Amsterdam/Philadephia:Ben-jamins,又如Den Haag:Sdu/DOP出版地一般是出版社(商)所在的城市,标注城市名,不可标注为国家名。

参考文献补充了文章的重要信息,涉及范围十分广泛,编辑部资料有限,在大多数情况下,编辑不可能一一增补遗漏的参考文献要素,因而,希望在修订现行编排规范时,对英文参考文献的标注作明确规定,以便作者写作和编者编辑时皆有章可循,亦使这项工作更加规范。笔者不揣浅陋,依据工作实践提出以上意见。不妥之处,还望大家指正。

一、参考文献的类型

参考文献(即引文出处)的类型以单字母方式标识,具体如下:

M——专著 C——论文集 N——报纸文章 J——期刊文章 D——学位论文 R——报告 S——标准 P——专利A——文章

对于不属于上述的文献类型,采用字母“Z”标识。

常用的电子文献及载体类型标识:

[DB/OL]——联机网上数据(database online)

[DB/MT]——磁带数据库(database on magnetic tape)

[M/CD]——光盘图书(monograph on CD睷OM)

[CP/DK]——磁盘软件(computer program on disk)

[J/OL]——网上期刊(serial online)

[EB/OL]——网上电子公告(electronic bulletin board online)

对于英文参考文献,还应注意以下两点:

①作者姓名采用“姓在前名在后”原则,具体格式是: 姓,名字的首字母. 如: Malcolm Richard Cowley 应为:Cowley, .,如果有两位作者,第一位作者方式不变,&之后第二位作者名字的首字母放在前面,姓放在后面,如:Frank Norris 与Irving Gordon应为:Norris, F. & .;

②书名、报刊名使用斜体字,如:Mastering English Literature,English Weekly。

二、参考文献的格式及举例

1.期刊类

【格式】[序号]作者.篇名[J].刊名,出版年份,卷号(期号):起止页码.

【举例】

[1] 周融,任志国,杨尚雷,厉星星.对新形势下毕业设计管理工作的思考与实践[J].电气电子教学学报,2003(6):107-109.

[2] 夏鲁惠.高等学校毕业设计(论文)教学情况调研报告[J].高等理科教育,2004(1):46-52.

[3] Heider, . The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62 – 67.

2.专著类

【格式】[序号]作者.书名[M].出版地:出版社,出版年份:起止页码.

【举例】

[4] 刘国钧,王连成.图书馆史研究[M].北京:高等教育出版社,1979:15-18,31.

[5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45.

3.报纸类

【格式】[序号]作者.篇名[N].报纸名,出版日期(版次).

【举例】

[6] 李大伦.经济全球化的重要性[N]. 光明日报,1998-12-27(3).

[7] French, W. Between Silences: A Voice from China[N]. Atlantic Weekly, 1987-8-15(33).

4.论文集

【格式】[序号]作者.篇名[C].出版地:出版者,出版年份:起始页码.

【举例】

[8] 伍蠡甫.西方文论选[C]. 上海:上海译文出版社,1979:12-17.

[9] Spivak,G. “Can the Subaltern Speak?”[A]. In & L. Grossberg(eds.). Victory in Limbo: Imigism [C]. Urbana: University of Illinois Press, 1988, .

[10] Almarza, . Student foreign language teacher’s knowledge growth [A]. In

and (eds.). Teacher Learning in Language Teaching [C]. New York: Cambridge University Press. 1996. .

5.学位论文

【格式】[序号]作者.篇名[D].出版地:保存者,出版年份:起始页码.

【举例】

[11] 张筑生.微分半动力系统的不变集[D].北京:北京大学数学系数学研究所, 1983:1-7.

6.研究报告

【格式】[序号]作者.篇名[R].出版地:出版者,出版年份:起始页码.只有论文编号的文章,,参考文献格式

【举例】

[12] 冯西桥.核反应堆压力管道与压力容器的LBB分析[R].北京:清华大学核能技术设计研究院, 1997:9-10.只有论文编号的文章,,参考文献格式

7.专利

【格式】[序号]专利所有者.题名[P].国别:专利号,发布日期.

【举例】

[13] 姜锡洲.一种温热外敷药制备方案[P].中国专利:881056073, 1999–07–26.

8.标准

【格式】[序号]标准编号,标准名称[S].

【举例】

[14] GB/T 16159—1996, 汉语拼音正词法基本规则 [S].

9.条例

【格式】[序号]颁布单位.条例名称.发布日期

【举例】

[15] 中华人民共和国科学技术委员会.科学技术期刊管理办法[Z].1991—06—05

10.电子文献

【格式】[序号]主要责任者.电子文献题名.电子文献出处[电子文献及载体类型标识].或

可获得地址,发表或更新日期/引用日期.

英文引用及参考文献格式要求如下:

参考文献(即引文出处)的类型以单字母方式标识,具体如下:

M——专著C——论文集N——报纸文章

J——期刊文章D——学位论文R——报告

对于不属于上述的文献类型,采用字母“Z”标识。

对于英文参考文献,还应注意以下两点:

①作者姓名采用“姓在前名在后”原则,具体格式是:姓,名字的首字母.

如:MalcolmRichardCowley为:Cowley,.,

如果有两位作者,第一位作者方式不变,&之后第二位作者名字的首字母放在前面,姓放在后面,

如: FrankNorris与IrvingGordon应为:Norris,F.&.;

②书名、报刊名使用斜体字,如:MasteringEnglishLiterature, EnglishWeekly。

扩展资料:

参考文献类型及文献类型,根据GB3469-83《文献类型与文献载体代码》规定,以单字母方式标识:

1、专著M ; 报纸N ;期刊J ;专利文献P;汇编G ;古籍O;技术标准S ;

2、学位论文D ;科技报告R;参考工具K ;检索工具W;档案B ;录音带A ;

3、图表Q;唱片L;产品样本X;录相带V;会议录C;中译文T;

4、乐谱I; 电影片Y;手稿H;微缩胶卷U ;幻灯片Z;微缩平片F;其他E。

扩展资料来源:百度百科_参考文献

[3] Tomas U. Ganiron. Social Capital and Career Success of Civil Engineers towards Designing Career Paths[J]. [4] Doug as aMechanic Was Good Preparation For a Career as a Civil Engineer[J]. 84(2):14-15. 以上两篇参考文献的类型属于期刊论文,第[3]篇缺少出处信息:刊名,年,卷(期):起止页码。第[4]篇缺少刊名和出版年的信息。请使用数据库检索到这两篇文献,补齐缺少的信息。期刊的参考文献格式(GB 7714-2015 信息和文献 参考文献著录规则)是: [序号]作者.论文题名[J].刊名,年,卷(期):起止页码. 注意,欧美作者的要求是:姓在前,署全称,字母全大写,名在后,可缩写,多作者之间用“,”隔开,最多署3个作者,三个以上的作者省略,用“et al.”。

(1)独着[1]Mackendric, Greek Stones Speak:The Story of Archaeology in Greek York:'s Press,1962.此种格式中,作者的姓在前、名在后,姓与名之间用逗号分开,后面加点号。论着标题必须完整无缺,后面也加点号。接下来是出版地点、出版商和出版日期。(2)合着(两到三名作者)[2]Meltzer,Milton and Walter Thoreau .此种格式中,只把第一作者的名与姓颠倒,其余作者姓名保持不变。(3)合着(三名以上作者)[3]Scott, Grammar:A Linguistic Study of Its Classes and .(4)合着(a)以单位名称开始[4]United States Capitol People:The Story of the United States Geographic Society,1964.(b)以标题开始[5]We,the People:The Story of the United States the United States Capitol Geographic Society,1964.(5)着作(一卷以上)[6]Graves, Greek .如果你引用的资料分别来自着作的两卷,则采用这种办法;如果只来自其中一卷,则把卷数列在该书目的末尾。如:[7]Graves, Greek .(6)编着[8]Dreiser, .如果引用的资料来自编着中的某一作者,则把该作者的姓名放在开头。如:[9]Lynn,Kenneth S., Theodore York:Rinehart,1959.(7)引用同一作者在一本书中的内容[10]Thomas,Lewis. “The Long Habit.” In the Lives of a Cell:Notes of a Biology York:Viking,1974,.(8)引用多名作者在一本书中的内容[11] Dimock,George E.,Jr. “The Name of Odysseus.” In Essays on the Odyssey:Selected Modern Criticism. Ed. Charles H,Taylor. Blooming:Indiana University Press,1963,.(9)再版[12]Orstein,Robert Psychology of York:Harcourt,1977.(10)系列出版物[13]Downer,Alan American Drama. University of Minnesota Pamphlets on American Writers.(11)译着[14]Freud,Sigmund. (1950)。Totem and York:Norton.如果译者的内容在论文中被引用,译者的姓名则要放在目录条的开始:[15]Strachey,J,trans. (1950)。Totem and Sigmund York:Norton.(12)援引百科全书中的某篇文章[16]Spilhaus,A.&Jane .(1974)。 Pollution Control. Encyclopedia Britannica:Macropaedia.如果文章作者姓名不详细,就可以把文章名放在前面。[17]Pollution.(1963)。The Columbia Encyclopedia.(13)编页码的报刊或杂志中的一篇文章[18]Delbruck ,M.(1978)Mind from Matter?The American Scholar,47 . 339-353.(14)报纸上的一篇文章[19]Strout,. (1978,)。Another Bicentennial. Christian Science Monitor,. 1.(15)编着中的文章或章节[20]Burghardt,. (1984)。On the Origin of (Ed.),Play in Animals and Humans ()。Oxford:Basil Blackwell.即使当文章作者和编着者是同一个人时,作者名和编者名都要列在其相应的位置,例如:[21]Olney,J. (1980)。Autobiography and the Cultural Moment:A Thematic,Historical,and Bibliographical Introduction. In (Ed.),Autobiography:Essays Theoretical and Critical ()。Princeton:Princeton University Press.(16)网络上的文章[22]Taylor,C. (1992,August 10)。Reflections on Windows Word Processing. Buffer:The Newsjournal of Computing at the University of Denver [on-line].Available Internet:… No. 7. Minneapolis:University of Minnesota Press,1961.必须特别指出的是,英语专业学生写毕业论文时,“参考书目”中应该包括英语和汉语两种资料。先列英文参考书目,后列中文参考书目,最后是网络参考书目。英文按作者姓的字母顺序排序,中文按作者姓名拼音的字母顺序排序。

设计论文参考文献英文

英语论文参考文献标准格式

在各领域中,说到论文,大家肯定都不陌生吧,通过论文写作可以培养我们独立思考和创新的能力。那么一般论文是怎么写的呢?以下是我帮大家整理的英语论文参考文献标准格式,仅供参考,大家一起来看看吧。

用Times New Roman.每一条目顶格,如某一条目超过一行,从第二行起“悬挂缩进”2字符。参考文献中所有标点与符号均在英文状态下输入,标点符号后空一格。

参考文献条目排列顺序:英文文献、中文文献、网络文献。分别按作者姓氏字母顺序排列。文献前不用序号。

1)英文参考文献:

(1)专著与编著

排列顺序为:作者姓、名、专著名、出版地、出版社、出版年。

例如:

Brinkleyork: Knopf, 1993.

专著名中如果还包含其他著作或作品名,后者用斜体。

例如:

Dunn, Richard J ed. Charlotte Bront: Jane EyreNew York: Norton, 1971.

A、两个至三个作者

第一作者的姓在前,名在后,中间用逗号隔开;其余作者名在前,姓在后,中间无逗号;每个作者之间用逗号隔开,最后一个作者的姓名前用“and”,后用句号。

例如:

B、三个以上作者

第一作者姓名(姓在前,名在后,中间加逗号)后接“et al.”,其他作者姓名省略。

例如:

University of Hawaii Press, 1997.

C、同一作者同一年出版的不同文献,参照下例:

Widdowson, Henry G1998a.

Widdowson, Henry G. Cambridge:

Cambridge University Press, 1998b.

(2)论文集

参照下例:

Thompson, Pett. “Modal Verbs in Academic Writing”. In Ben Kettlemann & York: Rodopi, 2002: 305-323.

(3)百科全书等参考文献

参照下例:

Fagan, Jeffrey. “Gangs and Drugs”. ork: Macmillan, 2001.

(4)学术期刊论文

参照下例:

Murphy, Karen. “Meaningful Connections: Using Technology in Primary Classrooms”.

(5)网络文献

参照下例:

“Everything You Ever Wanted to Know About URL”.

(6)专著:

参照下例:

皮亚杰.结构主义[M] .北京:商务印书馆,1984.

(7)期刊文章:

参照下例:

杨忠,张韶杰.认知语音学中的类典型论[J].外语教学与研究,1999,(2):1-3.

(8)学位论文

参照下例:

梁佳.大学英语四、六级测试试题现状的理论分析与问题研究[D].湖南大学,2002.

(9)论文集

参照下例:

许小纯.含义和话语结构[A].李红儒.外国语言与文学研究[C].哈尔滨:黑龙江人民出版社,1999:5-7.

(10)附录

2)中文参考文献

一、参考文献的类型

参考文献(即引文出处)的类型以单字母方式标识,具体如下:

[M]--专着,着作

[C]--论文集(一般指会议发表的论文续集,及一些专题论文集,如《***大学研究生学术论文集》

[N]-- 报纸文章

[J]--期刊文章:发表在期刊上的论文,尽管有时我们看到的是从网上下载的(如知网),但它也是发表在期刊上的,你看到的电子期刊仅是其电子版

[D]--学位论文 :不区分硕士还是博士论文

[R]--报告:一般在标题中会有“关于****的.报告”字样

[S]-- 标准

[P]--专利

[A]--文章:很少用,主要是不属于以上类型的文章

[Z]--对于不属于上述的文献类型,可用字母“Z”标识,但这种情况非常少见

常用的电子文献及载体类型标识:

[DB/OL] --联机网上数据(database online)

[DB/MT] --磁带数据库(database on magnetic tape)

[M/CD] --光盘图书(monograph on CDROM)

[CP/DK] --磁盘软件(computer program on disk)

[J/OL] --网上期刊(serial online)

[EB/OL] --网上电子公告(electronic bulletin board online)

很显然,标识的就是该资源的英文缩写,/前面表示类型,/后面表示资源的载体,如OL表示在线资源。

二、参考文献的格式及举例

1.期刊类

【格式】[序号]作者。篇名[J].刊名,出版年份,卷号(期号)起止页码。

【举例】

[1] 周融,任志国,杨尚雷,厉星星。对新形势下毕业设计管理工作的思考与实践[J].电气电子教学学报,2003(6):107-109.

[2] 夏鲁惠。高等学校毕业设计(论文)教学情况调研报告[J].高等理科教育,2004(1):46-52.

[3] Heider, . The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62 67.

2.专着类

【格式】[序号]作者。书名[M].出版地:出版社,出版年份:起止页码。

【举例】

[4] 刘国钧,王连成。图书馆史研究[M].北京:高等教育出版社,1979:15-18,31.

[5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45.

3.报纸类

【格式】[序号]作者。篇名[N].报纸名,出版日期(版次)。

【举例】

[6] 李大伦。经济全球化的重要性[N]. 光明日报,1998-12-27(3)。

[7] French, W. Between Silences: A Voice from China[N]. Atlantic Weekly, 1987-8-15(33)。

4.论文集

【格式】[序号]作者。篇名 [C].出版地:出版者,出版年份:起始页码。

【举例】

[8] 伍蠡甫。西方文论选[C]. 上海:上海译文出版社,1979:12-17.

[9] Spivak,G. “Can the Subaltern Speak?”[A]. In & L. Grossberg(eds.)。 Victory in Limbo: Imigism [C]. Urbana: University of Illinois Press, 1988, .

[10] Almarza, . Student foreign language teacher's knowledge growth [A]. In and (eds.)。 Teacher Learning in Language Teaching [C]. New York: Cambridge University Press. 1996. .

5.学位论文

【格式】[序号]作者。篇名[D].出版地:保存者,出版年份:起始页码。

【举例】

[11] 张筑生。微分半动力系统的不变集[D].北京:北京大学数学系数学研究所, 1983:1-7.

6.研究报告

【格式】[序号]作者。名[R].出版地:出版者,出版年份:起始页码。

【举例】

[12] 冯西桥。核反应堆压力管道与压力容器的LBB分析[R].北京:清华大学核能技术设计研究院, 1997:9-10.

7.专利

【格式】[序号]专利所有者。题名[P].国别:专利号,发布日期。

8.标准

【格式】[序号]标准编号,标准名称[S].

【举例】

[14] GB/T 16159-1996, 汉语拼音正词法基本规则 [S].

9.条例

【格式】[序号]颁布单位。条例名称。发布日期

【举例】

[15] 中华人民共和国科学技术委员会。科学技术期刊管理办法[Z].1991-06-05

10.电子文献

【格式】[序号]主要责任者。电子文献题名。电子文献出处[电子文献及载体类型标识].或可获得地址,发表或更新日期/引用日期。

【举例】

[16] 王明亮。关于中国学术期刊标准化数据库系统工程的进展[EB/OL].

[17] 万锦。中国大学学报论文文摘(1983 1993)。英文版 [DB/CD]. 北京: 中国大百科全书出版社, 1996.

11.各种未定义类型的文献

【格式】[序号] 主要责任者。文献题名[Z].出版地:出版者, 出版年。

特别说明:凡出现在“参考文献”项中的标点符号都失去了其原有意义,且其中所有标点必须是半角,如果你的输入法中有半角/全解转换,则换到半角状态就可以了,如果你的输入法中没有这一转换功能,直接关闭中文输入法,在英文输入状态下输入即可。

其实,很多输入法(如目前比较流行的搜狐输入法)都提供了四种组合:

(1)中文标点+ 全角:这时输入的标点是这样的,:【1】-(而这时,我没有找到哪个键可以输入 / 符号)也就是说,这些符号是一定不能出现在“参考文献”中的;

(2)中文标点+半角:这时输入的标点是这样的,:【1】-(这时,我还是没有找到哪个键可以输入 / 符号)也就是说,这些符号也不能出现在“参考文献”中的;

上面列出的符号,中间没有任何的空格,你能看出它们有什么区别吗?我看只是-的宽度有一点点不同,其它都一样

(3)英文标点+全角:这时输入的标点是这样的,.:[1]-/

(4)英文标点+半角:这时输入的标点是这样的,.:[1]-/

从这两项可以明显的看出,半角和全角其实最大的差别是所占的宽度不一样,这一点对于数字来说最为明显,而英文标点明显要比中文标点细小很多(也许因为英文中,标点的功能没有中文那么复杂,就是说英文中标点符号的能力没有中文那么强大)

所以,很多人在写“参考文献” 时,总是觉得用英文标点+半角很不清楚,间距也太小,其实这点完全不用担心如果你觉得真的太小不好看,就用英文标点+全角吧而在[1] 之后,一般也都有一个空格。

对于英文参考文献,还应注意以下两点:

①作者姓名采用“姓在前名在后”原则,具体格式是:姓,名字的首字母。 如: Malcolm Richard Cowley 应为:Cowley, .,如果有两位作者,第一位作者方式不变,&之后第二位作者名字的首字母放在前面,姓放在后面,如:Frank Norris 与Irving Gordon应为:Norris, F. & .

②书名、报刊名使用斜体字,如:Mastering English Literature,English Weekly.

三、注释

注释是对论文正文中某一特定内容的进一步解释或补充说明注释应置于本页页脚,前面用圈码①、②、③等标识。

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工业设计论文参考英语文献

分给我吧,亲爱的。

industrial designdesign of products made by large-scale industry for mass distribution. Designing such products means, first, planning their structure, operation, and appearance and then planning these to fit efficient production, distribution, and selling procedures. Clearly, appearance is but one factor in such a complex process. Nevertheless, in consumer goods especially, appearance design is widely accepted as the principal virtue of industrial design; it is that portion of the whole least subject to rational analysis and, like craft secrets of the past, most advantageous in commercial competition. On the other hand, design of equipment for production, for services, and for sports is expected to demonstrate utility; but in these products, too, appearance design is increasingly design is supplied to manufacturers by three kinds of designers: staff designers, fully employed by one firm; designers under contract, who may serve several clients simultaneously, generally avoiding conflicts of interest; and free-lancers, who sell designs, often with royalty agreements, to the best-paying first industrial designer recognized as such worked under admirable conditions: Peter Behrens (1868–1940) in 1907 was hired by the Allgemeine Elektrizitäts-Gesellschaft in Germany to be their architect, industrial designer, and graphic designer—in fact, to give unified visible character to the numerous activities of a giant enterprise. Behrens had other clients and professional duties besides. A member of the architectural profession, Behrens applied its standards and ethics to his work as industrial designer, founding in 1907, with others, an important association of designers and businessmen, the Deutscher Werkbund. As a direct result, a number of these German and Swiss associations became well-established professional organizations of industrial designers. In the United States and Great Britain industrial designers initiated legally recognized professional associations, with codes of conduct, educational standards, etc. In London the Royal Society of Arts designates qualifying practitioners as Royal Designers for Industry; in the United States the Industrial Designers Society of America grants memberships only to those subscribing to codes and limitations of practice. In Britain the Council of Industrial Design was established in 1944 to advise on design, recommend designers, and provide courses in design appreciation for trade and exhibitions for the public. The International Council of Societies of Industrial Design was founded in London in 1957, and within 25 years it had members in more than 40 design has evolved no unified style, even for industries in which handwork is minimized. There have been, however, four significant style trends. The first of these is an emphasis on impersonality that Behrens was the first to establish. Design for industry, whether determined by an individual or by a group, shows a certain neutrality of expression. Impersonality has, on the one hand, been acclaimed as a natural aspect of mass production and marketing, of average taste in a democratic community; on the other hand, it has been criticized as submission to the machine, contradictory to free, individual expression. The style has, so far, second trend in industrial design is packaging, such that the designer provides a protective case for a product, leaving the inner workings to engineers. Complicated mechanical and electronic assemblies that have come into common use require protective shells for safety, cleanliness, and orderly appearance. In this instance, industrial designers are sometimes accused of superficial embellishment of a sort suitable to package design and third trend is streamlining, a design principle pioneered by Raymond Loewy and others in the 1930s and still widely employed, although the term itself has fallen out of fashion. As the name suggests, streamlining is characterized by contours designed to minimize resistance to motion through a fluid (as air). Originally associated with trains, automobiles, and other vehicles, the bullet shapes and sleek lines of streamlining were seized by industrial designers and applied to objects (., toasters) intrinsically unassociated with fourth trend is artificially accelerated obsolescence, that is, design changes that intentionally tempt owners to replace goods with new purchases more frequently than would be necessary as a result of normal wear and tear or established custom. Beginning in the field of fashion, artificial obsolescence has become something of a custom itself in industrialized countries. It operates through public opinion molded by advertising, through price changes, and through improvement and change in utility as well as through appearance change provided by designers. Its assessment must be established on wide social and economic considerations, not on design values alone. Especially in the design of automobiles and large home appliances, artificial obsolescence has aroused strong criticism; yet, because of its demonstrable economic effectiveness, it is used increasingly. It is an essential aspect of fashion and has met with wide approval in the form of disposability in health and hygiene design is a growing force, influencing and influenced by world economy, private efficacy and enjoyment, the arts, engineering, and, not least, education. It has contributed more to economic activity than to aesthetic achievement, and many see the latter as its greatest challenge. The Museum of Modern Art, New York City, among other institutions, has sought to recognize outstanding contributions to industrial design.

第17 卷第4 期 皮 革 科 学 与 工 程 Vol117 ,No142007 年8 月L EATHER SCIENCE AND ENGINEERING Aug1 2007Artical ID :1004 - 7964 (2007) 04 - 0003 - 06Received Date :20072052213 P. Mokrejs :Corresponding author. Phone N°: + 420 57 603 1230 ;Fax N°: + 420 57 603 1563 ;e2mail :mokrejs @f t . utb. c2Recycling Technology for Waste Tanning LiquorsP. Mok rejs1 3, D. J anacova2 ,M. Mladek1 , K. Kolomaz nik2 , F. L angmaier1 ,V . V asek2(1. Tomas B ata University , Faculty of Technology , Department of Protein and Leather , 275 , 762 72 Zlin, The Czech Republic ;2. Tomas B ata University , Faculty ofA p plied Inf ormatics , Institute of Processing Cont rol and A p plied Computer Science ,N ad S t ranemi 4511 , 760 05 Zlin, The Czech Republic)Abstract :Tannery belongs to typical indust rial branches which during t he technological processp roduce considerable quantities of liquid and solid wastes cont ributing to polluting t he environ2ment . The presented work describes dechromation of waste tanning liquor utilising chrome sludgep roduced t hrough enzymatic hydrolysis of chrome2tanned leat her wastes. The principle of dechro2mation consist s in sorption of chrome f rom waste liquor af ter tanning to chrome sludge. Recy2cling technology is characterised by an almost 99 % efficiency , simplicity and low investment re2quirement words :solid waste ;liquid waste ;chrome sludge ;waste tanning liquor ;chrome recoveryCLC number :X 794 Document code :A鞣制废液的循环技术摘 要:制革属于典型的工业分支,制革工业中会产生大量的污染环境的废液和废固。该论文利用铬鞣革废物的酶法水解用铬污泥除去鞣制废液中的铬。除去铬的原理是鞣后的铬污泥从废液中吸收铬。该循环技术回收率可达99 % ,操作简单、成本低廉。关键词:固体废弃物;液体废弃物;铬污泥;鞣制废液;铬回收1 INTRODUCTIONThe tanning indust ry p rocesses wastes of themeat indust ry , raw hides , and t ransforms t hemt hrough chemical , chemico2p hysical and mechani2cal processes into leather s. During t he technologi2cal process , solid and liquid wastes arise which ,particularly as a consequence of t he cont rover sialchrome t hey contain , burden the environment .Processing one met ric ton of raw hide produces ap2prox. 200 kg finished leat her . About 30 , 000 kgwastewaters arise through processing and moret han 70 % chrome passes into liquid and solidwastes [1 ] .In classic tanning , approx. 40 % chrome (t hestarting charge of 15 - 17 kg Cr / t ) remains inleat her , 26 % - 30 % chrome passes into solidwastes and 30 % - 34 % chrome remains in liquidwastes. In t he tanning of hides using technologicalprocedures ensuring high removal of chrome com2pounds by white hide , 54 % - 57 % chrome remains© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. leat her , 31 % - 38 % chrome passes into solidwastes and 5 % - 15 % remains in liquid wastes [2 ] .For modifying t he tanning process , organic acids ,e. g. are used , which cont ribute to improving theremoval of chrome . 1 Liquid wasteManufacture of chrome2tanned leat hers pro2duces 115 - 2 times quantities of wastewater s t hanmanufact ure of vegetable2tanned leat her s [3 ] . Los2ses of chrome compounds in waste tanning liquor smay be prevented in several ways. The simplestapproach is the direct recycling method consistingin re2using exhausted liquor in t he tanning main shortcoming of t his method is a negativeeffect of salt s and other contaminating substanceson quality of finished leather . Af ter being recycledseveral times , wastewater has to be discharged intosewage [4 ] . Anot her potential met hod is indirectrecycling , in which chrome is obtained f rom ex2hausted sludge t hrough precipitation using a suit2able alkaline agent , e. g. sodium hydroxide , sodi2um carbonate , sodium hydrogen carbonate , mag2nesium oxide , calcium sulp hate , calcium hydroxide[5 ] . A f urt her met hod consist s in employing elabo2rate techniques , e. g. elect ro2dialysis , membraneseparation , ion exchangers , wit h which chromemay be separated f rom ot her salt s contained in ex2hausted sludge. Chrome thus obtained is character2ised by much higher p urity than that obtainedt hrough indirect recycling. Disadvantages are ahigh cost and limited po ssibilities of applying t hesedemanding technologies in tanning factories [ 4 ] .Unutilised chrome in liquid wastes , apartf rom significant economic losses for tanneries , al soposes great hazard for t he environment and forman. The most stable and most important oxida2tion state is Cr ( III) . Compounds of Cr (VI) occurin t he form of chromates and dichromates and ex2hibit quite st rong oxidative properties [6 ] .Chrome is found in liquid tanning wastes in it st rivalent form , there exist s , however , potentialdanger of it s oxidising to hexavalent compounds ,particularly when t reating groundwater s to drink2ing waters. Hexavalent compounds , when com2bined wit h calcium or magnesium ions , are st rong2ly carcinogenic[7 , 8 ] .An extensive research exploring negativeeffect s of tanning wastewaters f rom local tannerieson t he adjacent ecosystem was conducted in Indi2a[9 ] . Highest level s of chrome contained in soilwere found in t he vicinity of tanneries , at g/ kg. Highest chrome accumulation was ob2served in cauliflower stalks (72 mg/ kg) in locali2ties near tanneries. In st udies investigating Cr ac2cumulation in fish organs it was found t hat mostchrome accumulates in t he liver (approx. 22 mg/kg) and least in muscles (approx. 1 mg/ kg) . Thepo ssible t ransfer of hazardous Cr doses into t hefood chain and consequently to human beings ist hus quite Sol id wasteTannery processing al so produces a considera2ble quantity of solid chrome2tanned wastes whichpresent a significant problem due to t heir chromecontent . The problem of solid wastes has beensolved so far by land filling which , of course , be2side ever increasing land filling co st s al so bringst he danger of chrome escaping into t he to t heir containing a sizeable proportion ofprotein material , solid tanned wastes started to beprocessed. Enzymatic hydrolysis has being em2ployed to considerable extent in latest year s , wit hit s particular advantages being mild reaction condi2tions and economic cost2effectiveness [10 , 11 ] . Themain product of enzymatic hydrolysis is collagenhydrolysate , whose application possibilities arebroad , e. g. as feed additive , nit rogenous fertili2ser , raw material for preparing adhesives , corro2sion inhibitor s , etc. The remaining waste productaf ter enzymatic hydrolysis (chrome sludge) has notyet found lucrative application. It s employment ,due to chrome content , has not been much adoptedfor preparing combined tanning bat of the presented work is potential use4 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. t he waste product af ter enzymatic hydrolysis ofchrome2tanned solid wastes (chrome sludge) for i2solating chrome compounds f rom waste tanningliquor MATERIALS AND METHODSSolid was determined according to ISO 4684[12 ] , ash according to ISO 4047 : 1998[13 ] , nit rogenaccording to ISO 5397 : 1984 [14 ] , Cr2 O3 accordingto ISO 5398 [ 15 ] , Cr according to ISO 9174 : 1998[16 ] and Mg according to ASTM D511203 [ 17 ] .Chrome sludge is a waste product of enzymatichydrolysis of chrome2tanned solid waste and it scomposition is given in Tab. 1. Typical composi2tion of chrome2tanned solid waste is given in Composition of chrome sludge1)表1 铬污泥成份Parameter ValueTS/ % 1614Ash/ % 3410N / % 114Cr2O3 / % 1215MgO / % 1115 1) based on total solidsTab12 Composition of chrome2tanned solid waste1)表2 铬鞣革固体废弃物成份Parameter ValueTS/ % 6911Ash/ % 1019N/ % 2011Cr2O3 / % 415 1) based on total solidsTab13 Composition of waste tanning liquor表3 鞣制废液成份Parameter ValueTS/ % 718Ash/ %1) 8713N/ %1) 018Cr/ (mg/ kg) 1 ,769Mg/ (mg/ kg) 693p H 412colour blue2green 1) based on total solidsWaste tanning liquor was obtained f rom tan2ning of cowhides and it s composition is presentedin Tab. experimental part was divided into twopart s. The fir st part contained five selected massratio s of chrome sludge ∶ waste liquor and threevarious dechromation times , see Table 4. Practicaldechromation was performed under laboratory con2ditions by stirring chrome sludge with waste tan2ning liquor at room temperat ure in accordance wit ht he scheme shown in Fig. 1. Af ter dechromation ,t he heterogeneous mixt ure was cent rif uged. A partof supernatant was analysed for Cr content . Theinvestigated object in view was quantity of residualchrome in waste tanning liquor af ter second part of test s followed up result s ofwaste liquor dechromation efficiency in t he first ex2perimental part . The mass ratio of chrome sludge∶waste liquor producing greatest dechromation ef2ficiency was selected and a series of test s per2formed to t he p urpo se of st udying dechromation re2action 1 Scheme of dechromation of waste tanning liquor图1 鞣制废液的脱铬流程3 RESULTSTest s and dechromation result s at variousmass ratios of chrome sludge ∶waste liquor and va2rious dechromation times are shown in t hen shows dechromation result s at mass ra2tio of chrome sludge ∶waste liquor = 1 ∶1 and va2rious dechromation times. Each test was performedt hreefold and arit hmetic mean calculated , standarddeviation ranged wit hin ±5 %.第4 期 P. Mokrejs ,et al :Recycling Technology for Waste Tanning Liquors 5© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. Dechromation results of waste tanning liquor at mass ratios of Cr sludge/ waste liq. and dechromation times表4 铬污泥与废液不同质量比以及不同脱铬时间条件下鞣制废液的脱铬结果( g)sludge :liquort/ minIn2processpHCr liq. /( mg/ kg)Eff iciency/ %1 7114 ∶50 30 6134 - 7108 807 54142 90 190 89123 180 116 93154 20183 ∶50 30 6195 - 7148 146 91175 90 58 96176 180 33 98117 35171 ∶50 30 7121 - 7168 53 97108 90 33 98119 180 36 981010 50 ∶50 30 7130 - 7190 24 981711 90 23 981712 180 17 991013 70 ∶50 30 7148 - 8102 41 971714 90 32 981215 180 79 9516 1) Starting content of chrome in waste tanning liquor = 1769 mg/ kgTab1 5 Dechromation results of waste tanning liquor andtimes1)表5 铬污泥与废液质量比为1 ∶1 不同脱铬时间条件下鞣制废液的脱铬结果 minIn processpHCr liq./ ( mg/ kg)Eff iciency/ %1 4 7120 - 7133 438 75122 8 7127 - 7145 351 80123 12 7151 - 7189 299 83114 16 7176 - 7194 230 87105 20 7180 - 7191 206 88146 24 7181 - 7194 200 88177 28 7181 - 7196 139 92118 32 7182 - 7199 43 97169 36 7188 - 8103 32 981210 40 7190 - 8104 19 981911 60 7186 - 8106 28 981412 80 7187 - 8107 22 981813 100 7180 - 8111 35 9810 1) Starting content of chrome in waste tanning liquor =1769 mg/ kg ;mass ratio of chrome sludge ∶waste liquor = 1∶1Figure 2 shows column plot s representing re2sidual chrome content in waste tanning liquor af tert he dechromation procedure at various chromesludge ∶waste liquor ratios and various dechroma2tion times. With a mass ratio of 1 ∶7 af ter 30 mindechromation , a drop of chrome in liquor exceeding50 % was found , af ter 180 min the dechromationefficiency was greatest . Wit h a ratio of 1 ∶214 ,t he tendency of chrome content in liquor to de2crease wit h time was at it s greatest , residualchrome content in liquor coming down to 3314 ppmwhich represent s dechromation efficiency exceeding98 %. Wit h a ratio of 1 ∶114 t he tendency ofchrome decrease is similar , when t he greatest dropof chrome content in liquor was already recordedaf ter 90 min of dechromation ( to 3312 mg/ kg) .Wit h a ratio of 1 ∶1 , lowest level s of residualchrome in liquor were already at tained in 30 min ofdechromation app rox. 24 mg/ kg , representing al2most 99 % dechromation efficiency. A f urt her in2crease in dechromation times produced but negli2gibly decreased chrome content in liquor . Wit h aratio of 114 ∶1 , t he greatest drop of chrome con2tent in liquor was recorded af ter 90 min dechroma2tion. Fig13 shows dechromation kinetics of wastetanning liquor at mass ratio of chrome sludge ∶waste liquor = 1 ∶1 and various dechromationtimes. From result s it is obvious t hat af ter 40 min6 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. chrome content in waste tanning liq2uor decreased to approx. 20 mg/ kg , which com2pared wit h starting content of chrome in waste tan2ning liquor ( 1769 mg/ kg) signifies almost 99 %chrome removal efficiency. Further increases indechromation time did not show in markedly in2creased chrome removal efficiency , and values ofresidual chrome content in slurry fluct uated be2tween 20 and 35 mg/ DISCUSSIONDuring past decades , a t ransfer occurred of anotable part of tanning plant s f rom economicallyadvanced west European count ries to developingcount ries and to count ries of t he Asian continent .In latest year s , however , t he environmental loadproduced by t hese plant s became unsustainable andintensive negotiations on resolving t he mat ter gotunder way. When rest ructuring existing and con2st ructing new tanning plant s , issues coming partic2ularly under consideration are solid and liquidwastes containing chrome. Contamination ofgroundwater s wit h liquid wastes containing chromeis obvious. Release of chrome f rom solid wastes第4 期 P. Mokrejs ,et al :Recycling Technology for Waste Tanning Liquors 7© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. proceed particularly t hrough elution by rainwith great hazard of groundwater danger of Cr ( III) oxidising to Cr (VI) was al2ready mentioned in t he fir st part of this cont result s showed t he solid waste product ,chrome sludge , may be successf ully employed to i2solate chrome f rom waste tanning liquors , and t hatwith an efficiency of app rox. 99 %. The advanta2ges of recycling technology may primarily comprisesimplicity and low demand for investment cost s ,which make it ideally applicable when recyclingwaste tanning liquor s especially in tanning plant sin t he developing of chrome2enriched sludge remainsan open issue. A feasible alternative is it s combus2tion and separation of chrome , which may be used ,e. g. in pigment manufacture. A particular compli2cation is presented by accompanying magnesium ,which is undesirable for t hese applications. Isola2ting magnesium f rom chrome sludge will be subjectof a following research. Employment of chrome2enriched sludge for p reparing f resh tanning bathsal so remains an open CONCLUSIONRecycling technology developed for removingchrome f rom waste tanning liquors wit h applicationof waste chrome sludge achieves almost 99 % effi2ciency. Dechromed waste liquor represent s a mini2mal load on t he environment . Chrome2enrichedsludge , following isolation of ot her accompanyingelement s (especially magnesium and calcium) com2plicating it s f urther processing , could serve to pre2pare pigment s. Result s of experimental measure2ment s and an elaborated mat hematical model of re2cycling technology will serve to propose an algo2rit hm of enclosed dechromation cycle cont rol whichwill be t he subject of pilot2plant test : The aut hors would like tot hank to The Minist ry of Education of The CzechRep ublic for financial support to t his work execu2ted under MSM Grant No : :[1 ] Process technology for recovery and recycling of chromi2um f rom leather waste and sludge , BLC , EV5VO542(1994 1996) .[2 ] Ludvik J . Chrome balance in leather processing [ J ] .UNIDO , US/ RAS/ 92/ 120/ 11 - 51 (2000) .[3 ] Mladek M ,et al . Leather indust ry waste t reatment [M] .State Technical Literature Publishing , Prague ( 1971) :261 - 265.[4 ] Rajamani S. A system for recovery and reuse of chromi2um f rom spent tanning liquor using magnesium oxide andsulphuric acid[J ] . UNIDO (2003) .[ 5 ] Covington A D , Sykes R L , Barlow J R , et al. A practi2cal chrome recovery system using magnesium oxide[J ] . JSoc Leather Technol Chem ,1985 , (69) :166 - 174.[6 ]Cotton F , Wilkinson G. Advanced Inorganic Chemist ry( A Comprehensive Text ) [ M ] . Academia , Prague(1973) . 788 - 803.[7 ] Hartford W H. Proceedings Chromium Symposium [J ] .Indust rial Health , Foundation , Pitt sburg (1989) .[8 ]Vijayalakshm R . A Study of the interaction of Cr ( III)complexes and their selective binding with B2DNA. Amolecular modelling approach[J ] . J Biom St ruc Dynam ,2002 (19) :1063 - 1072.[9 ] Chattopadhyay B. The environmental impact of wastechromium of tannery agglomerates in the east Calcuttawetland ecosystem[J ] . J Soc Leather Technol Chem ,2000(84) :94 - 100.[ 10 ] Cabeza L F. Isolation of protein product s f rom chromi2um2containing leather waste using two consecutive en2zymes and purification of final chromium product : Pilotplant studies [ J ] . J Soc Leather Technol Chem , 1999(83) :14 - 19.[11 ] Langmaier F. Product s of enzymatic decomposition ofchrome2tanned leather waste [J ] . J Soc Leather TechnolChem , 1999 (83) :187 - 195.[12 ] ISO 4684 , Determination of volatile matter.[ 13 ] ISO 4047 : 1998 , Determination of sulphated total ashand sulphated water insoluble ash.[14 ] ISO 5397 : 1984 , Determination of nit rogen and hidesubstance.[15 ] ISO 5398 , Determination of chromic oxide.[16 ] ISO 9174 :1998 , Water quality 2 Determination of chro2mium 2 Atomic absorption spect romet ric methods.[17 ]ASTM D511 - 03 , Standard test methods for calciumand magnesium in 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved.

[1] 【英】莱夫特瑞;欧美工业设计5大材料顶尖创意;上海人民美术出版社,2007-1[2] 【丹】阿德里安•海斯;西方工业设计300年;吉林美术出版社,2003-3

工业设计英语论文参考文献

[1] 【英】莱夫特瑞;欧美工业设计5大材料顶尖创意;上海人民美术出版社,2007-1[2] 【丹】阿德里安•海斯;西方工业设计300年;吉林美术出版社,2003-3

第17 卷第4 期 皮 革 科 学 与 工 程 Vol117 ,No142007 年8 月L EATHER SCIENCE AND ENGINEERING Aug1 2007Artical ID :1004 - 7964 (2007) 04 - 0003 - 06Received Date :20072052213 P. Mokrejs :Corresponding author. Phone N°: + 420 57 603 1230 ;Fax N°: + 420 57 603 1563 ;e2mail :mokrejs @f t . utb. c2Recycling Technology for Waste Tanning LiquorsP. Mok rejs1 3, D. J anacova2 ,M. Mladek1 , K. Kolomaz nik2 , F. L angmaier1 ,V . V asek2(1. Tomas B ata University , Faculty of Technology , Department of Protein and Leather , 275 , 762 72 Zlin, The Czech Republic ;2. Tomas B ata University , Faculty ofA p plied Inf ormatics , Institute of Processing Cont rol and A p plied Computer Science ,N ad S t ranemi 4511 , 760 05 Zlin, The Czech Republic)Abstract :Tannery belongs to typical indust rial branches which during t he technological processp roduce considerable quantities of liquid and solid wastes cont ributing to polluting t he environ2ment . The presented work describes dechromation of waste tanning liquor utilising chrome sludgep roduced t hrough enzymatic hydrolysis of chrome2tanned leat her wastes. The principle of dechro2mation consist s in sorption of chrome f rom waste liquor af ter tanning to chrome sludge. Recy2cling technology is characterised by an almost 99 % efficiency , simplicity and low investment re2quirement words :solid waste ;liquid waste ;chrome sludge ;waste tanning liquor ;chrome recoveryCLC number :X 794 Document code :A鞣制废液的循环技术摘 要:制革属于典型的工业分支,制革工业中会产生大量的污染环境的废液和废固。该论文利用铬鞣革废物的酶法水解用铬污泥除去鞣制废液中的铬。除去铬的原理是鞣后的铬污泥从废液中吸收铬。该循环技术回收率可达99 % ,操作简单、成本低廉。关键词:固体废弃物;液体废弃物;铬污泥;鞣制废液;铬回收1 INTRODUCTIONThe tanning indust ry p rocesses wastes of themeat indust ry , raw hides , and t ransforms t hemt hrough chemical , chemico2p hysical and mechani2cal processes into leather s. During t he technologi2cal process , solid and liquid wastes arise which ,particularly as a consequence of t he cont rover sialchrome t hey contain , burden the environment .Processing one met ric ton of raw hide produces ap2prox. 200 kg finished leat her . About 30 , 000 kgwastewaters arise through processing and moret han 70 % chrome passes into liquid and solidwastes [1 ] .In classic tanning , approx. 40 % chrome (t hestarting charge of 15 - 17 kg Cr / t ) remains inleat her , 26 % - 30 % chrome passes into solidwastes and 30 % - 34 % chrome remains in liquidwastes. In t he tanning of hides using technologicalprocedures ensuring high removal of chrome com2pounds by white hide , 54 % - 57 % chrome remains© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. leat her , 31 % - 38 % chrome passes into solidwastes and 5 % - 15 % remains in liquid wastes [2 ] .For modifying t he tanning process , organic acids ,e. g. are used , which cont ribute to improving theremoval of chrome . 1 Liquid wasteManufacture of chrome2tanned leat hers pro2duces 115 - 2 times quantities of wastewater s t hanmanufact ure of vegetable2tanned leat her s [3 ] . Los2ses of chrome compounds in waste tanning liquor smay be prevented in several ways. The simplestapproach is the direct recycling method consistingin re2using exhausted liquor in t he tanning main shortcoming of t his method is a negativeeffect of salt s and other contaminating substanceson quality of finished leather . Af ter being recycledseveral times , wastewater has to be discharged intosewage [4 ] . Anot her potential met hod is indirectrecycling , in which chrome is obtained f rom ex2hausted sludge t hrough precipitation using a suit2able alkaline agent , e. g. sodium hydroxide , sodi2um carbonate , sodium hydrogen carbonate , mag2nesium oxide , calcium sulp hate , calcium hydroxide[5 ] . A f urt her met hod consist s in employing elabo2rate techniques , e. g. elect ro2dialysis , membraneseparation , ion exchangers , wit h which chromemay be separated f rom ot her salt s contained in ex2hausted sludge. Chrome thus obtained is character2ised by much higher p urity than that obtainedt hrough indirect recycling. Disadvantages are ahigh cost and limited po ssibilities of applying t hesedemanding technologies in tanning factories [ 4 ] .Unutilised chrome in liquid wastes , apartf rom significant economic losses for tanneries , al soposes great hazard for t he environment and forman. The most stable and most important oxida2tion state is Cr ( III) . Compounds of Cr (VI) occurin t he form of chromates and dichromates and ex2hibit quite st rong oxidative properties [6 ] .Chrome is found in liquid tanning wastes in it st rivalent form , there exist s , however , potentialdanger of it s oxidising to hexavalent compounds ,particularly when t reating groundwater s to drink2ing waters. Hexavalent compounds , when com2bined wit h calcium or magnesium ions , are st rong2ly carcinogenic[7 , 8 ] .An extensive research exploring negativeeffect s of tanning wastewaters f rom local tannerieson t he adjacent ecosystem was conducted in Indi2a[9 ] . Highest level s of chrome contained in soilwere found in t he vicinity of tanneries , at g/ kg. Highest chrome accumulation was ob2served in cauliflower stalks (72 mg/ kg) in locali2ties near tanneries. In st udies investigating Cr ac2cumulation in fish organs it was found t hat mostchrome accumulates in t he liver (approx. 22 mg/kg) and least in muscles (approx. 1 mg/ kg) . Thepo ssible t ransfer of hazardous Cr doses into t hefood chain and consequently to human beings ist hus quite Sol id wasteTannery processing al so produces a considera2ble quantity of solid chrome2tanned wastes whichpresent a significant problem due to t heir chromecontent . The problem of solid wastes has beensolved so far by land filling which , of course , be2side ever increasing land filling co st s al so bringst he danger of chrome escaping into t he to t heir containing a sizeable proportion ofprotein material , solid tanned wastes started to beprocessed. Enzymatic hydrolysis has being em2ployed to considerable extent in latest year s , wit hit s particular advantages being mild reaction condi2tions and economic cost2effectiveness [10 , 11 ] . Themain product of enzymatic hydrolysis is collagenhydrolysate , whose application possibilities arebroad , e. g. as feed additive , nit rogenous fertili2ser , raw material for preparing adhesives , corro2sion inhibitor s , etc. The remaining waste productaf ter enzymatic hydrolysis (chrome sludge) has notyet found lucrative application. It s employment ,due to chrome content , has not been much adoptedfor preparing combined tanning bat of the presented work is potential use4 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. t he waste product af ter enzymatic hydrolysis ofchrome2tanned solid wastes (chrome sludge) for i2solating chrome compounds f rom waste tanningliquor MATERIALS AND METHODSSolid was determined according to ISO 4684[12 ] , ash according to ISO 4047 : 1998[13 ] , nit rogenaccording to ISO 5397 : 1984 [14 ] , Cr2 O3 accordingto ISO 5398 [ 15 ] , Cr according to ISO 9174 : 1998[16 ] and Mg according to ASTM D511203 [ 17 ] .Chrome sludge is a waste product of enzymatichydrolysis of chrome2tanned solid waste and it scomposition is given in Tab. 1. Typical composi2tion of chrome2tanned solid waste is given in Composition of chrome sludge1)表1 铬污泥成份Parameter ValueTS/ % 1614Ash/ % 3410N / % 114Cr2O3 / % 1215MgO / % 1115 1) based on total solidsTab12 Composition of chrome2tanned solid waste1)表2 铬鞣革固体废弃物成份Parameter ValueTS/ % 6911Ash/ % 1019N/ % 2011Cr2O3 / % 415 1) based on total solidsTab13 Composition of waste tanning liquor表3 鞣制废液成份Parameter ValueTS/ % 718Ash/ %1) 8713N/ %1) 018Cr/ (mg/ kg) 1 ,769Mg/ (mg/ kg) 693p H 412colour blue2green 1) based on total solidsWaste tanning liquor was obtained f rom tan2ning of cowhides and it s composition is presentedin Tab. experimental part was divided into twopart s. The fir st part contained five selected massratio s of chrome sludge ∶ waste liquor and threevarious dechromation times , see Table 4. Practicaldechromation was performed under laboratory con2ditions by stirring chrome sludge with waste tan2ning liquor at room temperat ure in accordance wit ht he scheme shown in Fig. 1. Af ter dechromation ,t he heterogeneous mixt ure was cent rif uged. A partof supernatant was analysed for Cr content . Theinvestigated object in view was quantity of residualchrome in waste tanning liquor af ter second part of test s followed up result s ofwaste liquor dechromation efficiency in t he first ex2perimental part . The mass ratio of chrome sludge∶waste liquor producing greatest dechromation ef2ficiency was selected and a series of test s per2formed to t he p urpo se of st udying dechromation re2action 1 Scheme of dechromation of waste tanning liquor图1 鞣制废液的脱铬流程3 RESULTSTest s and dechromation result s at variousmass ratios of chrome sludge ∶waste liquor and va2rious dechromation times are shown in t hen shows dechromation result s at mass ra2tio of chrome sludge ∶waste liquor = 1 ∶1 and va2rious dechromation times. Each test was performedt hreefold and arit hmetic mean calculated , standarddeviation ranged wit hin ±5 %.第4 期 P. Mokrejs ,et al :Recycling Technology for Waste Tanning Liquors 5© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. Dechromation results of waste tanning liquor at mass ratios of Cr sludge/ waste liq. and dechromation times表4 铬污泥与废液不同质量比以及不同脱铬时间条件下鞣制废液的脱铬结果( g)sludge :liquort/ minIn2processpHCr liq. /( mg/ kg)Eff iciency/ %1 7114 ∶50 30 6134 - 7108 807 54142 90 190 89123 180 116 93154 20183 ∶50 30 6195 - 7148 146 91175 90 58 96176 180 33 98117 35171 ∶50 30 7121 - 7168 53 97108 90 33 98119 180 36 981010 50 ∶50 30 7130 - 7190 24 981711 90 23 981712 180 17 991013 70 ∶50 30 7148 - 8102 41 971714 90 32 981215 180 79 9516 1) Starting content of chrome in waste tanning liquor = 1769 mg/ kgTab1 5 Dechromation results of waste tanning liquor andtimes1)表5 铬污泥与废液质量比为1 ∶1 不同脱铬时间条件下鞣制废液的脱铬结果 minIn processpHCr liq./ ( mg/ kg)Eff iciency/ %1 4 7120 - 7133 438 75122 8 7127 - 7145 351 80123 12 7151 - 7189 299 83114 16 7176 - 7194 230 87105 20 7180 - 7191 206 88146 24 7181 - 7194 200 88177 28 7181 - 7196 139 92118 32 7182 - 7199 43 97169 36 7188 - 8103 32 981210 40 7190 - 8104 19 981911 60 7186 - 8106 28 981412 80 7187 - 8107 22 981813 100 7180 - 8111 35 9810 1) Starting content of chrome in waste tanning liquor =1769 mg/ kg ;mass ratio of chrome sludge ∶waste liquor = 1∶1Figure 2 shows column plot s representing re2sidual chrome content in waste tanning liquor af tert he dechromation procedure at various chromesludge ∶waste liquor ratios and various dechroma2tion times. With a mass ratio of 1 ∶7 af ter 30 mindechromation , a drop of chrome in liquor exceeding50 % was found , af ter 180 min the dechromationefficiency was greatest . Wit h a ratio of 1 ∶214 ,t he tendency of chrome content in liquor to de2crease wit h time was at it s greatest , residualchrome content in liquor coming down to 3314 ppmwhich represent s dechromation efficiency exceeding98 %. Wit h a ratio of 1 ∶114 t he tendency ofchrome decrease is similar , when t he greatest dropof chrome content in liquor was already recordedaf ter 90 min of dechromation ( to 3312 mg/ kg) .Wit h a ratio of 1 ∶1 , lowest level s of residualchrome in liquor were already at tained in 30 min ofdechromation app rox. 24 mg/ kg , representing al2most 99 % dechromation efficiency. A f urt her in2crease in dechromation times produced but negli2gibly decreased chrome content in liquor . Wit h aratio of 114 ∶1 , t he greatest drop of chrome con2tent in liquor was recorded af ter 90 min dechroma2tion. Fig13 shows dechromation kinetics of wastetanning liquor at mass ratio of chrome sludge ∶waste liquor = 1 ∶1 and various dechromationtimes. From result s it is obvious t hat af ter 40 min6 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. chrome content in waste tanning liq2uor decreased to approx. 20 mg/ kg , which com2pared wit h starting content of chrome in waste tan2ning liquor ( 1769 mg/ kg) signifies almost 99 %chrome removal efficiency. Further increases indechromation time did not show in markedly in2creased chrome removal efficiency , and values ofresidual chrome content in slurry fluct uated be2tween 20 and 35 mg/ DISCUSSIONDuring past decades , a t ransfer occurred of anotable part of tanning plant s f rom economicallyadvanced west European count ries to developingcount ries and to count ries of t he Asian continent .In latest year s , however , t he environmental loadproduced by t hese plant s became unsustainable andintensive negotiations on resolving t he mat ter gotunder way. When rest ructuring existing and con2st ructing new tanning plant s , issues coming partic2ularly under consideration are solid and liquidwastes containing chrome. Contamination ofgroundwater s wit h liquid wastes containing chromeis obvious. Release of chrome f rom solid wastes第4 期 P. Mokrejs ,et al :Recycling Technology for Waste Tanning Liquors 7© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved. proceed particularly t hrough elution by rainwith great hazard of groundwater danger of Cr ( III) oxidising to Cr (VI) was al2ready mentioned in t he fir st part of this cont result s showed t he solid waste product ,chrome sludge , may be successf ully employed to i2solate chrome f rom waste tanning liquors , and t hatwith an efficiency of app rox. 99 %. The advanta2ges of recycling technology may primarily comprisesimplicity and low demand for investment cost s ,which make it ideally applicable when recyclingwaste tanning liquor s especially in tanning plant sin t he developing of chrome2enriched sludge remainsan open issue. A feasible alternative is it s combus2tion and separation of chrome , which may be used ,e. g. in pigment manufacture. A particular compli2cation is presented by accompanying magnesium ,which is undesirable for t hese applications. Isola2ting magnesium f rom chrome sludge will be subjectof a following research. Employment of chrome2enriched sludge for p reparing f resh tanning bathsal so remains an open CONCLUSIONRecycling technology developed for removingchrome f rom waste tanning liquors wit h applicationof waste chrome sludge achieves almost 99 % effi2ciency. Dechromed waste liquor represent s a mini2mal load on t he environment . Chrome2enrichedsludge , following isolation of ot her accompanyingelement s (especially magnesium and calcium) com2plicating it s f urther processing , could serve to pre2pare pigment s. Result s of experimental measure2ment s and an elaborated mat hematical model of re2cycling technology will serve to propose an algo2rit hm of enclosed dechromation cycle cont rol whichwill be t he subject of pilot2plant test : The aut hors would like tot hank to The Minist ry of Education of The CzechRep ublic for financial support to t his work execu2ted under MSM Grant No : :[1 ] Process technology for recovery and recycling of chromi2um f rom leather waste and sludge , BLC , EV5VO542(1994 1996) .[2 ] Ludvik J . Chrome balance in leather processing [ J ] .UNIDO , US/ RAS/ 92/ 120/ 11 - 51 (2000) .[3 ] Mladek M ,et al . Leather indust ry waste t reatment [M] .State Technical Literature Publishing , Prague ( 1971) :261 - 265.[4 ] Rajamani S. A system for recovery and reuse of chromi2um f rom spent tanning liquor using magnesium oxide andsulphuric acid[J ] . UNIDO (2003) .[ 5 ] Covington A D , Sykes R L , Barlow J R , et al. A practi2cal chrome recovery system using magnesium oxide[J ] . JSoc Leather Technol Chem ,1985 , (69) :166 - 174.[6 ]Cotton F , Wilkinson G. Advanced Inorganic Chemist ry( A Comprehensive Text ) [ M ] . Academia , Prague(1973) . 788 - 803.[7 ] Hartford W H. Proceedings Chromium Symposium [J ] .Indust rial Health , Foundation , Pitt sburg (1989) .[8 ]Vijayalakshm R . A Study of the interaction of Cr ( III)complexes and their selective binding with B2DNA. Amolecular modelling approach[J ] . J Biom St ruc Dynam ,2002 (19) :1063 - 1072.[9 ] Chattopadhyay B. The environmental impact of wastechromium of tannery agglomerates in the east Calcuttawetland ecosystem[J ] . J Soc Leather Technol Chem ,2000(84) :94 - 100.[ 10 ] Cabeza L F. Isolation of protein product s f rom chromi2um2containing leather waste using two consecutive en2zymes and purification of final chromium product : Pilotplant studies [ J ] . J Soc Leather Technol Chem , 1999(83) :14 - 19.[11 ] Langmaier F. Product s of enzymatic decomposition ofchrome2tanned leather waste [J ] . J Soc Leather TechnolChem , 1999 (83) :187 - 195.[12 ] ISO 4684 , Determination of volatile matter.[ 13 ] ISO 4047 : 1998 , Determination of sulphated total ashand sulphated water insoluble ash.[14 ] ISO 5397 : 1984 , Determination of nit rogen and hidesubstance.[15 ] ISO 5398 , Determination of chromic oxide.[16 ] ISO 9174 :1998 , Water quality 2 Determination of chro2mium 2 Atomic absorption spect romet ric methods.[17 ]ASTM D511 - 03 , Standard test methods for calciumand magnesium in 皮革科学与工程 第17 卷© 1994-2008 China Academic Journal Electronic Publishing House. All rights reserved.

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夹具设计论文英文参考文献

钻床夹具086 双击自动滚屏 文章来源:一流设计吧 发布者:16sheji8 发布时间:2008-08-23 10:04:31 阅读:664次 目录目录... 3序言... 3一、零件的分析... 4零件的作用... 4零件的工艺分析... 4二 . 确定生产类型... 4三 .确定毛坯... 4四.工艺规程设计... 5(一)选择定位基准:... 5(二)制定工艺路线... 5(三)选择加工设备和工艺设备... 5(四)机械加工余量、工序尺寸及工时的确定... 6五、 夹具设计... 9(一)问题的提出... 9(二)夹具设计... 93.定位误差分析... 104钻床夹具的装配图见附图... 10参考文献:... 10序言机械制造工艺学课程设计使我们学完了大学的全部基础课、技术基础课以及大部分专业课之后进行的.这是我们在进行毕业设计之前对所学各课程的一次深入的综合性的总复习,也是一次理论联系实际的训练,因此,它在我们四年的大学生活中占有重要的地位。 就我个人而言,我希望能通过这次课程设计对自己未来将从事的工作进行一次适应性训练,从中锻炼自己分析问题、解决问题的能力,为今后参加祖国的“四化”建设打下一个良好的基础。 由于能力所限,设计尚有许多不足之处,恳请各位老师给予指导。一、零件的分析(一) 零件的作用题目所给的零件是CA6140车床的拨叉。它位于车床变速机构中,主要起换档,使主轴回转运动按照工作者的要求工作,获得所需的速度和扭矩的作用。零件上方的φ22孔与操纵机构相连,二下方的φ55半孔则是用于与所控制齿轮所在的轴接触。通过上方的力拨动下方的齿轮变速。两件零件铸为一体,加工时分开。(二) 零件的工艺分析零件的材料为HT200,灰铸铁生产工艺简单,铸造性能优良,但塑性较差、脆性高,不适合磨削,为此以下是拨叉需要加工的表面以及加工表面之间的位置要求:1. 小头孔 以及与此孔相通的 的锥孔、 螺纹孔2. 大头半圆孔 3. 拨叉底面、小头孔端面、大头半圆孔端面,大头半圆孔两端面与小头孔中心线的垂直度误差为,小头孔上端面与其中心线的垂直度误差为。由上面分析可知,可以粗加工拨叉底面,然后以此作为粗基准采用专用夹具进行加工,并且保证位置精度要求。再根据各加工方法的经济精度及机床所能达到的位置精度,并且此拨叉零件没有复杂的加工曲面,所以根据上述技术要求采用常规的加工工艺均可保证。二 确定生产类型初步确定工艺安排为:。中批量生产 手动夹紧 通用工艺装备三 确定毛坯1 确定毛坯种类:零件材料为HT200。考虑零件在机床运行过程中所受冲击不大,零件结构又比较简单,生产类型为大批生产,故选择铸件毛坯。查《机械制造工艺及设备设计指导手册》324页表15-5选用铸件尺[1] [2] 下一页 本文来自: 一流设计吧() 详细出处参考:

机械论文参考文献

在学习和工作中,大家都有写论文的经历,对论文很是熟悉吧,通过论文写作可以提高我们综合运用所学知识的能力。怎么写论文才能避免踩雷呢?以下是我收集整理的机械论文参考文献,仅供参考,大家一起来看看吧。

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[1]邹银辉.煤岩体声发射传播机理研究[D].山东:山东科技大学硕士论文,2007

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[5]汪向阳,陈世利.基于地震波的油气管道安全监测[J].电子测量技术,2008,31(7):121-123

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英语论文参考文献标准格式

在各领域中,说到论文,大家肯定都不陌生吧,通过论文写作可以培养我们独立思考和创新的能力。那么一般论文是怎么写的呢?以下是我帮大家整理的英语论文参考文献标准格式,仅供参考,大家一起来看看吧。

用Times New Roman.每一条目顶格,如某一条目超过一行,从第二行起“悬挂缩进”2字符。参考文献中所有标点与符号均在英文状态下输入,标点符号后空一格。

参考文献条目排列顺序:英文文献、中文文献、网络文献。分别按作者姓氏字母顺序排列。文献前不用序号。

1)英文参考文献:

(1)专著与编著

排列顺序为:作者姓、名、专著名、出版地、出版社、出版年。

例如:

Brinkleyork: Knopf, 1993.

专著名中如果还包含其他著作或作品名,后者用斜体。

例如:

Dunn, Richard J ed. Charlotte Bront: Jane EyreNew York: Norton, 1971.

A、两个至三个作者

第一作者的姓在前,名在后,中间用逗号隔开;其余作者名在前,姓在后,中间无逗号;每个作者之间用逗号隔开,最后一个作者的姓名前用“and”,后用句号。

例如:

B、三个以上作者

第一作者姓名(姓在前,名在后,中间加逗号)后接“et al.”,其他作者姓名省略。

例如:

University of Hawaii Press, 1997.

C、同一作者同一年出版的不同文献,参照下例:

Widdowson, Henry G1998a.

Widdowson, Henry G. Cambridge:

Cambridge University Press, 1998b.

(2)论文集

参照下例:

Thompson, Pett. “Modal Verbs in Academic Writing”. In Ben Kettlemann & York: Rodopi, 2002: 305-323.

(3)百科全书等参考文献

参照下例:

Fagan, Jeffrey. “Gangs and Drugs”. ork: Macmillan, 2001.

(4)学术期刊论文

参照下例:

Murphy, Karen. “Meaningful Connections: Using Technology in Primary Classrooms”.

(5)网络文献

参照下例:

“Everything You Ever Wanted to Know About URL”.

(6)专著:

参照下例:

皮亚杰.结构主义[M] .北京:商务印书馆,1984.

(7)期刊文章:

参照下例:

杨忠,张韶杰.认知语音学中的类典型论[J].外语教学与研究,1999,(2):1-3.

(8)学位论文

参照下例:

梁佳.大学英语四、六级测试试题现状的理论分析与问题研究[D].湖南大学,2002.

(9)论文集

参照下例:

许小纯.含义和话语结构[A].李红儒.外国语言与文学研究[C].哈尔滨:黑龙江人民出版社,1999:5-7.

(10)附录

2)中文参考文献

一、参考文献的类型

参考文献(即引文出处)的类型以单字母方式标识,具体如下:

[M]--专着,着作

[C]--论文集(一般指会议发表的论文续集,及一些专题论文集,如《***大学研究生学术论文集》

[N]-- 报纸文章

[J]--期刊文章:发表在期刊上的论文,尽管有时我们看到的是从网上下载的(如知网),但它也是发表在期刊上的,你看到的电子期刊仅是其电子版

[D]--学位论文 :不区分硕士还是博士论文

[R]--报告:一般在标题中会有“关于****的.报告”字样

[S]-- 标准

[P]--专利

[A]--文章:很少用,主要是不属于以上类型的文章

[Z]--对于不属于上述的文献类型,可用字母“Z”标识,但这种情况非常少见

常用的电子文献及载体类型标识:

[DB/OL] --联机网上数据(database online)

[DB/MT] --磁带数据库(database on magnetic tape)

[M/CD] --光盘图书(monograph on CDROM)

[CP/DK] --磁盘软件(computer program on disk)

[J/OL] --网上期刊(serial online)

[EB/OL] --网上电子公告(electronic bulletin board online)

很显然,标识的就是该资源的英文缩写,/前面表示类型,/后面表示资源的载体,如OL表示在线资源。

二、参考文献的格式及举例

1.期刊类

【格式】[序号]作者。篇名[J].刊名,出版年份,卷号(期号)起止页码。

【举例】

[1] 周融,任志国,杨尚雷,厉星星。对新形势下毕业设计管理工作的思考与实践[J].电气电子教学学报,2003(6):107-109.

[2] 夏鲁惠。高等学校毕业设计(论文)教学情况调研报告[J].高等理科教育,2004(1):46-52.

[3] Heider, . The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62 67.

2.专着类

【格式】[序号]作者。书名[M].出版地:出版社,出版年份:起止页码。

【举例】

[4] 刘国钧,王连成。图书馆史研究[M].北京:高等教育出版社,1979:15-18,31.

[5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45.

3.报纸类

【格式】[序号]作者。篇名[N].报纸名,出版日期(版次)。

【举例】

[6] 李大伦。经济全球化的重要性[N]. 光明日报,1998-12-27(3)。

[7] French, W. Between Silences: A Voice from China[N]. Atlantic Weekly, 1987-8-15(33)。

4.论文集

【格式】[序号]作者。篇名 [C].出版地:出版者,出版年份:起始页码。

【举例】

[8] 伍蠡甫。西方文论选[C]. 上海:上海译文出版社,1979:12-17.

[9] Spivak,G. “Can the Subaltern Speak?”[A]. In & L. Grossberg(eds.)。 Victory in Limbo: Imigism [C]. Urbana: University of Illinois Press, 1988, .

[10] Almarza, . Student foreign language teacher's knowledge growth [A]. In and (eds.)。 Teacher Learning in Language Teaching [C]. New York: Cambridge University Press. 1996. .

5.学位论文

【格式】[序号]作者。篇名[D].出版地:保存者,出版年份:起始页码。

【举例】

[11] 张筑生。微分半动力系统的不变集[D].北京:北京大学数学系数学研究所, 1983:1-7.

6.研究报告

【格式】[序号]作者。名[R].出版地:出版者,出版年份:起始页码。

【举例】

[12] 冯西桥。核反应堆压力管道与压力容器的LBB分析[R].北京:清华大学核能技术设计研究院, 1997:9-10.

7.专利

【格式】[序号]专利所有者。题名[P].国别:专利号,发布日期。

8.标准

【格式】[序号]标准编号,标准名称[S].

【举例】

[14] GB/T 16159-1996, 汉语拼音正词法基本规则 [S].

9.条例

【格式】[序号]颁布单位。条例名称。发布日期

【举例】

[15] 中华人民共和国科学技术委员会。科学技术期刊管理办法[Z].1991-06-05

10.电子文献

【格式】[序号]主要责任者。电子文献题名。电子文献出处[电子文献及载体类型标识].或可获得地址,发表或更新日期/引用日期。

【举例】

[16] 王明亮。关于中国学术期刊标准化数据库系统工程的进展[EB/OL].

[17] 万锦。中国大学学报论文文摘(1983 1993)。英文版 [DB/CD]. 北京: 中国大百科全书出版社, 1996.

11.各种未定义类型的文献

【格式】[序号] 主要责任者。文献题名[Z].出版地:出版者, 出版年。

特别说明:凡出现在“参考文献”项中的标点符号都失去了其原有意义,且其中所有标点必须是半角,如果你的输入法中有半角/全解转换,则换到半角状态就可以了,如果你的输入法中没有这一转换功能,直接关闭中文输入法,在英文输入状态下输入即可。

其实,很多输入法(如目前比较流行的搜狐输入法)都提供了四种组合:

(1)中文标点+ 全角:这时输入的标点是这样的,:【1】-(而这时,我没有找到哪个键可以输入 / 符号)也就是说,这些符号是一定不能出现在“参考文献”中的;

(2)中文标点+半角:这时输入的标点是这样的,:【1】-(这时,我还是没有找到哪个键可以输入 / 符号)也就是说,这些符号也不能出现在“参考文献”中的;

上面列出的符号,中间没有任何的空格,你能看出它们有什么区别吗?我看只是-的宽度有一点点不同,其它都一样

(3)英文标点+全角:这时输入的标点是这样的,.:[1]-/

(4)英文标点+半角:这时输入的标点是这样的,.:[1]-/

从这两项可以明显的看出,半角和全角其实最大的差别是所占的宽度不一样,这一点对于数字来说最为明显,而英文标点明显要比中文标点细小很多(也许因为英文中,标点的功能没有中文那么复杂,就是说英文中标点符号的能力没有中文那么强大)

所以,很多人在写“参考文献” 时,总是觉得用英文标点+半角很不清楚,间距也太小,其实这点完全不用担心如果你觉得真的太小不好看,就用英文标点+全角吧而在[1] 之后,一般也都有一个空格。

对于英文参考文献,还应注意以下两点:

①作者姓名采用“姓在前名在后”原则,具体格式是:姓,名字的首字母。 如: Malcolm Richard Cowley 应为:Cowley, .,如果有两位作者,第一位作者方式不变,&之后第二位作者名字的首字母放在前面,姓放在后面,如:Frank Norris 与Irving Gordon应为:Norris, F. & .

②书名、报刊名使用斜体字,如:Mastering English Literature,English Weekly.

三、注释

注释是对论文正文中某一特定内容的进一步解释或补充说明注释应置于本页页脚,前面用圈码①、②、③等标识。

WETWE4根据我搜集的一些网站来看,建议看看这个,要做毕业论文以及毕业设计的,推荐一个网站 ,里面的毕业设计什么的全是优秀的,因为精挑细选的,网上很少有,都是相当不错的毕业论文和毕业设计,对毕业论文的写作有很大的参考价值,希望对你有所帮助。别的相关范文很多的,推荐一些比较好的范文写作网站,希望对你有帮助,这些精选的范文网站,里面有大量的范文,也有各种文章写作方法,注意事项,应该有适合你的,自己动手找一下,可不要照搬啊,参考一下,用自己的语言写出来那才是自己的。 如果你不是校园网的话,请在下面的网站找:毕业论文网: 分类很细 栏目很多毕业论文: 毕业设计: 开题报告: 实习论文: 写作指导:

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