毕业论文的引言范文(推荐十四篇).docx
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1、毕业论文的引言范文(推荐十四篇)5毕业论文的引言范文(篇一)Itisasignificantandunforgettableexperienceformetospendsuchalongtimeonwriting,modifyingandpolishingthisthesis.Manykind-heartedpeoplegivemeagreatamountofhelp,professionaladviceandencouragement.Thus,hereIwouldliketoexpressmysinceregratitudetothem.Firstofall,Iwillshowmysinc
2、erethankstomysupervisorProfessorJiaAiwuwhohasgivenmeinvaluableguidanceandconstantsupportandencouragementthroughoutthewholeprocesses.DuringmystudyofEnglisheducationinthistwoahalfyearsandthewittingofthisthesis,shehasalwaysbeengeneroustooffermeUsefulsuggestions,answermyquestionanddiscussresearchquestio
3、nswithme.Herdetai!guidanceandhelpfulcommentsonmythesisencouragemetoovercomedifficultiesandthinkmorecriticallyduringtheprocessesofwriting.Secondly,Iwillalsoexpressmysinceregratitudetootherprofessorandteacherswhohadgivemeconstructivesuggestiontomythesisandthankstothemforinstructingmetoconstructmyknowl
4、edgeinEnglishteachinginthepasttwoandahalfyears.Thirdly,Iwanttothankallmyaffectionateclassmatesandfriends.Duringthetwoahalfyears,studyandthewritingofthisthesis,theyhavegivenmealotofsupportandencouragementintheirownways.Atlast,IwillgivethedeepestgratitudetomyfamilyfortheirregretlessSupportandlovetome.
5、毕业论文的引言范文(篇二)前言的写作方法1 .开门见山,不绕圈子。避免大篇幅地讲述历史渊源和立题研究过程。2 .言简意赅,突出重点。不应过多叙述同行熟知的及教科书中的常识性内容,确有必要提及他人的研究成果和基本原理时,只需以参考引文的形式标出即可。在引言中提示本文的工作和观点时,意思应明确,语言应简练。3 .回顾历史要有重点,内容要紧扣文章标题,围绕标题介绍背景,用几句话概括即可;在提示所用的方法时,不要求写出方法、结果,不要展开讨论;虽可适当引用过去的文献内容,但不要长篇罗列,不能把前言写成该研究的历史发展;不要把前言写成文献小综述,更不要去重复说明那些教科书上已有,或本领域研究人员所共知的
6、常识性内容。4 .尊重科学,实事求是。在前言中,评价论文的价值要恰如其分、实事求是,用词要科学,对本文的创新性最好不要使用“本研究国内首创、首次报道”“填补了国内空白”“有很高的学术价值”“本研究内容国内未见报道”或“本研究处于国内外领先水平”等不适当的自我评语。5 .前言的内容不应与摘要雷同,注意不用客套话;前言最好不分段论述,不要插图、列表,不进行公式的推导与证明。6 .前言的篇幅一般不要太长,太长可致读者乏味,太短则不易交待清楚,一篇3Ooo5000字的论文,引言字数一般掌握在200250字为宜。毕业论文的引言范文(篇三)目前,随着我国城市轨道交通建设事业的突飞猛进,地铁区间隧道在施工设
7、备和施工技术方面也得到了迅速的发展.为了使混凝土达到内实外美的效果,必须对混凝土的施工技术做全面了解,才能在施工过程中对一些质量通病进行防治,下面就以地铁明挖区间隧道衬砌混凝土施工为例,简单介绍其施工中的通病及防治措施,仅供参考.1.蜂窝的产生原因及防治措施蜂窝一一当砂浆没有填满粗集料之间的孔隙时就会产生蜂窝,外观表现为混凝土砂浆少,局部石子多,石子之间出现空隙,形成蜂窝状的孔洞.产生原因:(1)、一般是漏震或者是震捣不到位造成的;(2)、还与混凝土配合比选择不当有关;(3)、混凝土搅拌时间短,振捣不密实;(4)、未按操作规程灌注混凝土;(5)、混凝土没有分段、分层灌注,振捣不实或下料与振捣配
8、合不好,未振捣又下料;(6)、模板孔隙未封堵好,或模板支撑不牢固,造成严重漏浆.防治措施:首先应均匀布料,混凝土自由倾落高度一般不得超过2m,如超过,要采用串筒、溜槽等措施下料;同时应避免混凝土拌和物产生离析,墙体混凝土进入仓内应左右对称、水平、分层连续浇注,至顶板交界处间歇,然后再浇筑顶板混凝土;顶板混凝土应连续水平、分台阶由边墙、中墙分别向结构中间方向进行灌注;顶板混凝土灌注至高程初凝前,应用表面振捣器振捣一遍后再抹平;混凝土每层层厚必须控制在30cm40cm,震捣时振动棒应等间距的垂直插入混凝土中,其移动间距控制在其作用半径的倍以内,前后两次震动棒的作用范围应当有重叠,同时震动棒应快速插
9、入下层混凝土IOcm,混凝土密实后慢慢拔起.全部振捣密实后才能进行下一层的浇注;同时应经常观察模板、支架、堵缝等情况.发现有跑模现象立即停止灌注,并在混凝土初凝前修整完好.选择合适的衬砌混凝土配合比,严格按施工配合比拌料,控制好混凝土坍落度,并避免模板漏浆现象,同时应将模板上的残留砂浆清理干净,对防止蜂窝出现有很大作用.毕业论文的引言范文(篇四)Tutorprofoundprofessionalknowledge,rigorousattitude,improvingworkstyle,tirelessinteachingothersthenoblemoralitynobledemeanor,Y
10、anyilvji,broad-mindedtowardothers,chastity,amiableandeasyofapproachpersonalitycharmhasprofoundinfluenceonme.NotonlythatIsetaloftyacademicgoals,graspthebasicresearchmethod,butalsomakemeunderstandalotofthewayofgettingalongwithpeopleandWeirenchushitruth.Fromtheto,eachstepiscompletedundertheguidanceofth
11、etutor,anddevotedalotofefforttothetutor.Here,wishtotutorpaidtributeandheartfeltthanks!Thispaper successfully completed, classmates and friends to care and engineering, Professor Zhang Ceng, teacher, s guidance and help; thankcannotdo without teachers, help. Thank Yue Baozhen Li Bingyun teacher, He W
12、anfen the Key Laboratory of Wu Hong, LaiYanming,ZhuXianjun,ChengHaifen,LuoXian,LiuDaoheng,WuShenglongandotherteacher,sguidanceandhelp;thankFAFUXieYonggroup,ProfessorProfessorChenLihui,HuangLiulianengineeringconcern,supportandhelp;Duringthethreeyearsofstudy,WangXu,LiuQianjun,TanChengrong,LiZongquan,H
13、o,FanJuan,KongFangong,WangJian,MaMinjiang,WangXiwen,HuangYouhe,XuLili,MoJialin,GuoSanchuan,LiJianwen,ZhongZehui,YangQifeng,LiuMengru,YinTanwei,ZhangChun,LiuRuiheng,TuQiliang,Hui,ZhuoYu,ZhangChengfeng,XueBing,JiangShouleZhangXiaochao,HeZhuoya,LiangDongmei,LiQiang,LiuHao,LiuChuanfu,YuDongmei,LaiYurong
14、,ChiCongcong,ChengXiaolian,ShiHaiqiang,WangShaoguang,andyoungerbrotherofcareandhelp,toexpressdeepgratitude.Withouttheirhelpandsupport,thereisnowaytofinishmyPh.D.Thesis.Friendshipbetweenstudentswilllastforever.毕业论文的引言范文(篇五)Inthepapercompleted,Ifeelexcited.Fromthetopicsofthepaper,thecollectionofdatato
15、thewritingandlayoutofthepaper,Igotalotofenthusiastichelp.Firstofall,IwouldliketothankMr.ZhangYuqing,wholedmetothedoorofinformationsecurity,andputforwardalotofvaluablecommentsonmyresearch,sothatmyresearchworkhasagoalanddirection.Inthepasttwoyears,hewascarefulguidanceandeducationtome.Itenablesmetostud
16、yandimprovecontinuously,andtheresearchresultsofthesetopicshavealsobecomethemainmaterialofthispaper.Atthesametime,Zhangprofoundknowledge,rigorousscholarshipattitudealsomakesmeveryadmire,ismymodeloflearningandwork.Thanktheteacherformycareandattention,inthistoexpressoursinceregratitude.Thankstomyparent
17、sandgirlfriendbear,givingunlimitedloveinlife,especiallythecubs,andwhenshedidnotcherishthelove,herlove,lostherlifeandperhapseventoolatetoregret,forthereisnochance,whenapproachinggraduation,deeplyregrettosaytoyou:“youloveletmegrowupandknowhowtolove,andIletyouscarred,andyouhavetoflee,ifthereisanychance
18、,ifthereistheafterlife,Iwillputyouinthepalmofcare”.Thankyouforworkinglifeinthepreventioncentercolleagues,Dr.ZhangDehua,Dr.LiuXiangning,Dr.MaoJian,ZhaoHonghao,JiaSuping,LiHaibao,SunPengpeng,YangXiaoyan,HuangDandan,WangRuoxin,YangNi,YuJunsong,becauseyouhaveawonderfulandfulfillinglife.Thankyouinthestud
19、yofinformationsecurityprofessionalstudentsspendtimetogetherstudents,JiangBailiang,ShiMiaolei,ZhangJun,ChengLiang,JingWong,WuJingjing,HuHao,JiaWei,LiuZiwen,LiuJingxuan,DengYi,WangXianggen,WeiYong,RenRong,andspendtheinternshipatthestateKeyLaboratoryofinformationsecurityyears.毕业论文的引言范文(篇六)Firstofall,I,
20、dliketoexpressmydeepestgratitudetomysupervisor,ProfessorX,whohasdoneagreatfavortomythesis.Fromtheplanningofthequestionnairetotherevisionofthethesis,Ihavebenefitedgreatlyfromhispatience,encouragementandexcellentguidance.What,smore,Iamdeeplymovedbyhisseriousattitudetowardsacademicwork.Secondly,Iwouldl
21、iketogivemythankstothehundredsofstudentsandteachersinGuilinExperientialMiddleSchoolAttachedtotheCapitalNormalUniversityandGuilinMiddleSchool,whohaveprovidedthestatisticsoftheinvestigationformythesis,especiallyMr.X,theviceheadmasteroftheAttachedMiddleSchoolandMs.X,whosupportedmealotinmyinvestigation.
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