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7SCI論文摘要寫(xiě)作SCI論文寫(xiě)作與投稿7SCI論文摘要寫(xiě)作7.1

摘要的內(nèi)容與結(jié)構(gòu)7.2摘要的類型7.3摘要的寫(xiě)作要求7.4摘要寫(xiě)作的常見(jiàn)問(wèn)題7.5摘要寫(xiě)作實(shí)例評(píng)析7.6

摘要與結(jié)論實(shí)例對(duì)比第2頁(yè)2025年3月31日SCI論文寫(xiě)作與投稿3(1)問(wèn)題、目的。簡(jiǎn)明扼要指出當(dāng)前相關(guān)研究的不足,引出問(wèn)題及研究目的(目標(biāo))??芍赋龌虬凳狙芯康奶攸c(diǎn)、前提、價(jià)值,提及方法,還可在開(kāi)頭簡(jiǎn)單交待研究主題(領(lǐng)域、范圍、研究點(diǎn)),引出研究意義(重要、必要性)。這部分屬于背景,大體對(duì)應(yīng)論文的引言部分。(2)方法、過(guò)程。描述論文主題、子主題下的主要研究方法,涉及方案、理論、技術(shù)、工具、手段、材料、設(shè)備、算法、程序及對(duì)文獻(xiàn)資料的分析、處理方法等,描述這些方法得以實(shí)現(xiàn)或完成所需的主要過(guò)程,涉及建模、公式推導(dǎo)、計(jì)算、實(shí)驗(yàn)、調(diào)查、設(shè)計(jì)、分析、研制等的具體流程、步驟。這部分大體對(duì)應(yīng)論文的材料與方法部分。

7.1

摘要的內(nèi)容與結(jié)構(gòu)4(3)結(jié)果、結(jié)論。陳述或展現(xiàn)由上述研究方法、過(guò)程所得的主要結(jié)果以及通過(guò)對(duì)結(jié)果進(jìn)行討論而得出的主要結(jié)論。主要結(jié)果涉及對(duì)原始結(jié)果中重要數(shù)據(jù)、現(xiàn)象、發(fā)現(xiàn)的說(shuō)明、分析、處理結(jié)果,主要結(jié)論涉及通過(guò)對(duì)原始結(jié)果進(jìn)行討論所得的新認(rèn)識(shí)、新觀點(diǎn)、新方法,或模擬、實(shí)證的結(jié)果、效能,或結(jié)果的用途、意義。這部分大體對(duì)應(yīng)論文的結(jié)果與討論部分。

7.1

摘要的內(nèi)容與結(jié)構(gòu)5(4)創(chuàng)新。從論文全文的角度(口吻)用簡(jiǎn)明語(yǔ)句(最好一句話)點(diǎn)明本文的研究成果及最高價(jià)值意義。明確研究成果的形態(tài),如提出了何新的觀點(diǎn)、理論、學(xué)說(shuō)等,發(fā)明了何新的工藝、技術(shù)、方法等,設(shè)計(jì)了何新的機(jī)器、設(shè)施、平臺(tái)等,明確指出所提問(wèn)題是否得到解決或改進(jìn),或研究目的、目標(biāo)是否實(shí)現(xiàn)。這部分內(nèi)容大體對(duì)應(yīng)論文的結(jié)論部分。(5)其他信息。以具有某種重要信息價(jià)值的其他內(nèi)容結(jié)尾,如研究的局限,問(wèn)題解決措施(建議)、前景預(yù)測(cè)(展望)、未來(lái)研究方向等。這部分大體可列入論文的結(jié)論部分。

7.1

摘要的內(nèi)容與結(jié)構(gòu)6研究主題或?qū)Σ煌瑑?nèi)容凸顯程度需求的不同,以上內(nèi)容項(xiàng)在摘要中的權(quán)重或詳略程度會(huì)呈現(xiàn)差異。問(wèn)題陳述時(shí),為突顯問(wèn)題解決的緊迫性或重要性,可適當(dāng)多描述問(wèn)題陳述部分;所提問(wèn)題較為普遍時(shí),可一筆帶過(guò)簡(jiǎn)單交待,甚至不交待。描述研究方法時(shí),為突顯方法的創(chuàng)新性,應(yīng)著重筆墨,稍詳交待方法及有關(guān)過(guò)程;方法(某種技術(shù)、工藝、算法等)較為成熟時(shí),可提及或簡(jiǎn)寫(xiě)方法即可,不必涉及過(guò)程。摘要內(nèi)容項(xiàng)按一定邏輯順序組織排列形成其常規(guī)結(jié)構(gòu):?jiǎn)栴}、目的→方法、過(guò)程→結(jié)果、結(jié)論→創(chuàng)新→局限、展望開(kāi)頭為問(wèn)題、目的陳述(研究背景,將做什么),中間前為方法、過(guò)程描述(怎么做),中間后為結(jié)果、結(jié)論及創(chuàng)新描述(做出什么),結(jié)尾為局限、展望(未來(lái)做什么)。摘要類型不同,對(duì)內(nèi)容項(xiàng)側(cè)重不同,如報(bào)道性摘要側(cè)重結(jié)果、結(jié)論、創(chuàng)新點(diǎn)及局限、展望,可提及方法,常不寫(xiě)過(guò)程;指示性摘要側(cè)重寫(xiě)過(guò)程,常不寫(xiě)結(jié)果、結(jié)論、創(chuàng)新點(diǎn)及局限、展望。

7.1

摘要的內(nèi)容與結(jié)構(gòu)總結(jié):摘要的內(nèi)容與結(jié)構(gòu)第7頁(yè)使用報(bào)道性摘要形式表述論文價(jià)值較高的內(nèi)容,指示性摘要形式表述論文的一般性內(nèi)容。篇幅常介于以上兩種摘要之間。信息、資料性摘要。簡(jiǎn)要概括和反映OMRC:目的(objective)、方法(methods)、結(jié)果(results)、結(jié)論(conclusions),提供盡可能多的定性定量信息,充分反映創(chuàng)新點(diǎn)。相當(dāng)于論文簡(jiǎn)介,能部分取代閱讀全文,原創(chuàng)論文、專題技術(shù)報(bào)告優(yōu)先使用說(shuō)明性、描述性、論點(diǎn)性摘要。一般用兩三句話概括主題,不涉及論據(jù)和結(jié)論,可不寫(xiě)研究目的、方法、結(jié)果,以及結(jié)論、建議等。多用于綜述、研究簡(jiǎn)報(bào)、會(huì)議報(bào)告,適于創(chuàng)新少或無(wú)創(chuàng)新的論文報(bào)道性指示性復(fù)合性

7.2

摘要的類型第8頁(yè)報(bào)道性摘要實(shí)例(4要素-OMRC)Abstract:InDecember2019,aclusterofpatientswithpneumoniaofunknowncausewaslinkedtoaseafoodwholesalemarketinWuhan,China.Apreviouslyunknownbetacoronanviruswasdiscoveredthroughtheuseofunbiasedsequencinginsamplesfrompatientswithpneumonia.Humanairwayepithelialcellswereusedtoisolateanovelcoronavirus,named2019-nCoV,whichformedacladewithinthesubgenussarbecovirus,Orthocoronavirinaesubfamily.DifferentfrombothMERS-CoVandSARS-CoV,2019-nCoVistheseventhmemberofthefamilyofcoronavirusesthatinfecthumans.Enhancedsurveillanceandfurtherinvestigationareongoing.句二至四報(bào)道研究成果:提出成果(發(fā)現(xiàn)一種新冠狀病毒)及方法(全基因組測(cè)序);描述成果對(duì)象(分離位置、命名、類屬及在人感染冠狀病毒家族中的定位)第9頁(yè)AnovelcoronavirusfrompatientswithpneumoniainChina句五全局總結(jié),暗示成果的階段性或局限性,須進(jìn)一步研究句一描述背景,暗示樣本來(lái)源(武漢不明原因肺炎患者,可能與一家海鮮批發(fā)市場(chǎng)有關(guān))指示性摘要實(shí)例(連謂)ReviewofLarge-EddySimulationofNon-PremixedTurbulentCombustionAbstract:Recentdevelopmentsinthemethodologyoflarge-eddysimulationappliedtoturbulent,reactingflowsarereviewed,withspecificemphasisonmixture-fraction-basedapproachestononpremixedreactions.Sometypicalresultsarepresented,andthepotentialuseofthemethodologyinapplicationandthefutureoutlookarediscussed.

以非預(yù)混反應(yīng)的混合分?jǐn)?shù)方法為重點(diǎn),綜述了大渦流模擬方法在湍流、反應(yīng)流中應(yīng)用的研究進(jìn)展,給出一些典型的結(jié)果,討論這些方法的應(yīng)用前景,并進(jìn)行展望。3個(gè)被動(dòng)句,謂語(yǔ)動(dòng)詞指出做了什么:

arereviewedarepresentedarediscussed具體結(jié)果、結(jié)論、成果未交待第10頁(yè)復(fù)合型摘要實(shí)例(背景+連謂)BiologyandApplicationsofCRISPRSystems:HarnessingNature’sToolboxforGenomeEngineeringAbstract:Bacteriaandarchaeapossessarangeofdefensemechanismstocombatplasmidsandviralinfections.UniqueamongthesearetheCRISPR-Cas(clusteredregularlyinterspacedshortpalindromicrepeats-CRISPRassociated)systems,whichprovideadaptiveimmunityagainstforeignnucleicacids.CRISPRsystemsfunctionbyacquiringgeneticrecordsofinvaderstofacilitaterobustinterferenceuponreinfection.InthisReview,wediscussrecentadvancesinunderstandingthediversemechanismsbywhichCasproteinsrespondtoforeignnucleicacidsandhowthesesystemshavebeenharnessedforprecisiongenomemanipulationinawidearrayoforganisms.

前三句陳述領(lǐng)域知識(shí),點(diǎn)出主題(領(lǐng)域、范圍),但未交待綜述研究的必要性最后一句交待做了什么工作(目的),但未給出結(jié)果及指導(dǎo)性

結(jié)論、展望第11頁(yè)(1)確定摘要類型。先確定摘要的類型,類型不同,其寫(xiě)作側(cè)重就不同,比如報(bào)道性摘要側(cè)重研究的結(jié)果與創(chuàng)新,指示性摘要側(cè)重研究的過(guò)程與方法羅列。通常應(yīng)優(yōu)先用報(bào)道性摘要,其次是復(fù)合性摘要,最后是指示性摘要。(2)簡(jiǎn)短概括背景。背景高度概括簡(jiǎn)短,側(cè)重引出問(wèn)題、交待目的,不要過(guò)多介紹主題知識(shí)、概括研究意義,也不要簡(jiǎn)單重復(fù)前言,甚至將前言中已寫(xiě)或應(yīng)在前言中寫(xiě)而未寫(xiě)的較多內(nèi)容寫(xiě)入,更不要補(bǔ)充、修改、解釋、評(píng)論正文。

7.3

摘要的寫(xiě)作要求第12頁(yè)(3)提煉概括正文。提煉、概括論文主體的主要內(nèi)容,避免大幅照搬論文或直接重復(fù)題名。例如,論文題名是“顛覆性技術(shù)的特征與預(yù)見(jiàn)方法”,其摘要就不宜出現(xiàn)如“對(duì)顛覆性技術(shù)的特征與預(yù)見(jiàn)方法進(jìn)行研究”之類的語(yǔ)句。(4)行文有序展開(kāi)。與論文主體的內(nèi)容和結(jié)構(gòu)相對(duì)應(yīng)來(lái)安排摘要,使摘要各部分按事物關(guān)聯(lián)、研究?jī)?nèi)容等的內(nèi)在時(shí)間、空間、邏輯等關(guān)系有序安排、展開(kāi),語(yǔ)句成分搭配,表達(dá)簡(jiǎn)明,語(yǔ)義確切,上下連貫,互相呼應(yīng),結(jié)構(gòu)嚴(yán)謹(jǐn),層次清晰。

7.3

摘要的寫(xiě)作要求第13頁(yè)(5)把握人稱省略。從第三人稱(如本文、本研究、本文章、本課題)或第一人稱(如我、我們、筆者、作者、本團(tuán)隊(duì)、本項(xiàng)目組)的角度寫(xiě),這類詞語(yǔ)做主語(yǔ)或狀語(yǔ)時(shí),其出現(xiàn)與否的效果若相同就可省去,形式省略,表意不變,語(yǔ)言簡(jiǎn)化。(6)使用術(shù)語(yǔ)符號(hào)。對(duì)公知公用的術(shù)語(yǔ)或領(lǐng)域使用較廣的新術(shù)語(yǔ),可直接使用;對(duì)出現(xiàn)不久還未被領(lǐng)域認(rèn)可或尚無(wú)合適叫法的新術(shù)語(yǔ)、新詞語(yǔ),使用時(shí)應(yīng)括注或直接用原詞語(yǔ)。對(duì)使用不太廣泛的一般縮略語(yǔ)、代號(hào),首次出現(xiàn)時(shí)宜先寫(xiě)出全稱,再括注其簡(jiǎn)稱。

7.3

摘要的寫(xiě)作要求第14頁(yè)(7)不要出現(xiàn)圖表。盡量用文字來(lái)概括論文內(nèi)容,通常不能出現(xiàn)插圖、表格。式子可以出現(xiàn),也可以不出現(xiàn),按表達(dá)需要來(lái)確定,但總的原則是,盡量不要出現(xiàn)式子,特別不要出現(xiàn)繁雜或龐大的數(shù)學(xué)式、化學(xué)結(jié)構(gòu)式,少用特殊字符及由特殊字符組成的表達(dá)式。(8)不要輕易引文。按表意需要確定是否引用文獻(xiàn),通常無(wú)須引用文獻(xiàn),引用文獻(xiàn)會(huì)有抄襲之嫌疑。若確有引用文獻(xiàn)需要,如突出對(duì)他人成果(已發(fā)表文獻(xiàn))的否定或修正,或直接干涉他人的成果,則可以考慮引用文獻(xiàn)。

7.3

摘要的寫(xiě)作要求第15頁(yè)(9)規(guī)范量和單位。將摘要視作一種科技文體(小短文),正確、規(guī)范地使用量和單位,嚴(yán)格而科學(xué)地執(zhí)行《量和單位》國(guó)家標(biāo)準(zhǔn)及其他相關(guān)標(biāo)準(zhǔn)、規(guī)范,做到量名稱、量符號(hào)、單位名稱、單位符號(hào)、單位詞頭等表達(dá)的標(biāo)準(zhǔn)化、規(guī)范化。(10)提升語(yǔ)言文字。簡(jiǎn)潔、確切,通順、明快,易讀、易懂,慎用或少寫(xiě)長(zhǎng)句難懂句,成分搭配,表意明白清晰,無(wú)空泛、籠統(tǒng)、含混之詞,沒(méi)有語(yǔ)病,用修辭手法提升表達(dá)效果。

7.3

摘要的寫(xiě)作要求第16頁(yè)(11)避免過(guò)度自夸。實(shí)事求是,不作自我評(píng)價(jià),避免表達(dá)不嚴(yán)謹(jǐn)或言過(guò)其實(shí),除非事實(shí)或表達(dá)需要,不用Thispaperpresents…forthefirsttime或Theresearchsimilartothispaperhasnotbeenfoundbyliteraturesearch之類的語(yǔ)句。

7.3

摘要的寫(xiě)作要求第17頁(yè)注意英文表達(dá)

7.3

摘要的寫(xiě)作要求第18頁(yè)避免連續(xù)用多個(gè)形容詞,名詞,或形容詞、名詞來(lái)修飾名詞,可用連字符連接名詞詞組中的名詞,或用介詞短語(yǔ),形成修飾單元簡(jiǎn)化措辭和重復(fù)單元。例如:

atatemperatureof250℃to300℃改為at250℃~300℃,

discussedandstudiedindetail改為discussed正確使用冠詞,不隨便省略冠詞,尤其是定冠詞主動(dòng)、被動(dòng)語(yǔ)態(tài)相結(jié)合,同一復(fù)句前后分句不宜用兩種不同語(yǔ)態(tài)用過(guò)去時(shí)敘述工作內(nèi)容、過(guò)程,現(xiàn)在時(shí)敘述研究目的、結(jié)果和結(jié)論

(如Thisstudyisto…,Theresultshows…),少用完成時(shí)和將來(lái)時(shí)脫離論文內(nèi)容,出現(xiàn)了與論文內(nèi)容不相符的新情況、新信息偏離研究主題,出現(xiàn)了不切題或無(wú)關(guān)的背景介紹、現(xiàn)狀描述工作交待冗余,知識(shí)、背景介紹冗余,工作內(nèi)容、過(guò)程繁雜成果體現(xiàn)不夠,結(jié)論、成果表述中缺少創(chuàng)新內(nèi)容、技術(shù)要點(diǎn)簡(jiǎn)單復(fù)制照搬,過(guò)多地重復(fù)題名、前言、結(jié)論中的有關(guān)語(yǔ)句對(duì)原始結(jié)果作補(bǔ)充、修改和多余的詮釋、評(píng)論甚至自我評(píng)價(jià)

7.4

摘要寫(xiě)作的常見(jiàn)問(wèn)題第19頁(yè)脫離事實(shí)或有關(guān)數(shù)據(jù)、資料、內(nèi)容,出現(xiàn)了言過(guò)其實(shí)的表達(dá)出現(xiàn)了圖表引用,沒(méi)有必要地出現(xiàn)了冗長(zhǎng)公式或繁雜數(shù)學(xué)式在不涉及(證實(shí)或否定)他人成果的情況下引用了相關(guān)文獻(xiàn)內(nèi)容和結(jié)構(gòu)不太完整,缺少必要的目的、方法、結(jié)果、結(jié)論用較多論證代替介紹、描述,將報(bào)道變成議論,甚至還舉例使用標(biāo)號(hào)、代號(hào)、特殊字符、圖符等難錄難懂的超語(yǔ)言要素

7.4

摘要寫(xiě)作的常見(jiàn)問(wèn)題第20頁(yè)沒(méi)有用標(biāo)準(zhǔn)的專業(yè)詞匯、術(shù)語(yǔ),表達(dá)不夠準(zhǔn)確、嚴(yán)謹(jǐn)、求實(shí)一般縮略語(yǔ)、簡(jiǎn)稱、代號(hào)等首次出現(xiàn)時(shí)未給出或注明其全稱未正確用量和單位,量和單位使用不標(biāo)準(zhǔn)、不規(guī)范,問(wèn)題多篇幅太短,短到只有幾句甚至一句,只描述過(guò)程不交待結(jié)果篇幅過(guò)長(zhǎng),表達(dá)冗余,不濃縮、不概括,無(wú)獨(dú)立性、自明性完全不考慮摘要的應(yīng)有功能,整篇寫(xiě)成背景介紹和因果論述

7.4

摘要寫(xiě)作的常見(jiàn)問(wèn)題第21頁(yè)實(shí)例一MasteringthegameofGowithdeepneuralnetworksandtreesearchNature,Vol529,28January2016實(shí)例二TheAnthropoceneisfunctionallyandstratigraphicallydistinctfromtheHolocene

Science,Vol351,Issue6269,8January2016第22頁(yè)

7.5

摘要寫(xiě)作實(shí)例評(píng)析Abstract:ThegameofGohaslongbeenviewedasthemostchallengingofclassicgamesforartificialintelligenceowingtoitsenormoussearchspaceandthedifficultyofevaluatingboardpositionsandmoves.HereweintroduceanewapproachtocomputerGothatuses‘valuenetworks’toevaluateboardpositionsand‘policynetworks’toselectmoves.

Thesedeepneuralnetworksaretrainedbyanovelcombinationofsupervisedlearningfromhumanexpertgames,andreinforcementlearningfromgamesofself-play.Withoutanylookaheadsearch,theneuralnetworksplayGoatthelevelofstate-of-the-artMonteCarlotreesearchprogramsthatsimulatethousandsofrandomgamesofself-play.WealsointroduceanewsearchalgorithmthatcombinesMonteCarlosimulationwithvalueandpolicynetworks.Usingthissearchalgorithm,ourprogramAlphaGoachieveda99.8%winningrateagainstotherGoprograms,anddefeatedthehumanEuropeanGochampionby5gamesto0.

Thisisthefirsttimethatacomputerprogramhasdefeatedahumanprofessionalplayerinthefull-sizedgameofGo,afeatpreviouslythoughttobeatleastadecadeaway.

第23頁(yè)實(shí)例一的摘要MasteringthegameofGowithdeepneuralnetworksandtreesearch第一句交代研究領(lǐng)域、范圍:圍棋一直是人工智能領(lǐng)域最具挑戰(zhàn)性的經(jīng)典游戲。ThegameofGohaslongbeenviewedasthemostchallengingofclassicgamesforartificialintelligenceowingtoitsenormoussearchspaceandthedifficultyofevaluatingboardpositionsandmoves.

第24頁(yè)實(shí)例一的摘要第一句第二句提出研究目的和方法:提出一種評(píng)估棋局位置和選擇落子的新方法;基于價(jià)值網(wǎng)絡(luò)(valuenetworks)和策略網(wǎng)絡(luò)(policynetworks)。HereweintroduceanewapproachtocomputerGothatuses‘valuenetworks’toevaluateboardpositionsand‘policynetworks’toselectmoves.

第25頁(yè)實(shí)例一的摘要第二句第三句進(jìn)一步闡釋方法:對(duì)圍棋高手下過(guò)的棋局進(jìn)行監(jiān)督學(xué)習(xí),對(duì)自我對(duì)局棋局進(jìn)行強(qiáng)化學(xué)習(xí),將二者結(jié)合起來(lái)訓(xùn)練這些深度神經(jīng)網(wǎng)絡(luò)(價(jià)值、策略網(wǎng)絡(luò))。Thesedeepneuralnetworksaretrainedbyanovelcombinationofsupervisedlearningfromhumanexpertgames,andreinforcementlearningfromgamesofself-play.第26頁(yè)實(shí)例一的摘要第三句第四句陳述使用上述方法的結(jié)果,說(shuō)明方法的先進(jìn)性:不用任何前向搜索,深度神經(jīng)網(wǎng)絡(luò)通過(guò)模擬成千上萬(wàn)的隨機(jī)自我對(duì)局,可以達(dá)到最先進(jìn)的蒙特卡洛樹(shù)搜索程序的水準(zhǔn)。Withoutanylookaheadsearch,theneuralnetworksplayGoatthelevelofstate-of-the-artMonteCarlotreesearchprogramsthatsimulatethousandsofrandomgamesofself-play.第27頁(yè)實(shí)例一的摘要第四句第五句提出另一研究目的和方法:提出一種新的搜索算法;將蒙特卡羅模擬與價(jià)值、策略網(wǎng)絡(luò)相結(jié)合。WealsointroduceanewsearchalgorithmthatcombinesMonteCarlosimulationwithvalueandpolicynetworks.第28頁(yè)實(shí)例一的摘要第五句第六句陳述使用這一新算法的結(jié)果:開(kāi)發(fā)出的圍棋比賽程序AlphaGo相比其他圍棋程序可以達(dá)到99.8%的獲勝率,并以5∶0擊敗了歐洲圍棋冠軍。Usingthissearchalgorithm,ourprogramAlphaGoachieveda99.8%winningrateagainstotherGoprograms,anddefeatedthehumanEuropeanGochampionby5gamesto0.第29頁(yè)實(shí)例一的摘要第六句第七句點(diǎn)出創(chuàng)新:實(shí)現(xiàn)了計(jì)算機(jī)程序AlphaGo在全進(jìn)階圍棋比賽中首次擊敗人類職業(yè)棋手,是一種比常規(guī)至少提前10年實(shí)現(xiàn)的壯舉。Thisisthefirsttimethatacomputerprogramhasdefeatedahumanprofessionalplayerinthefull-sizedgameofGo,afeatpreviouslythoughttobeatleastadecadeaway.第30頁(yè)實(shí)例一的摘要第七句Abstract:HumanactivityisleavingapervasiveandpersistentsignatureonEarth.VigorousdebatecontinuesaboutwhetherthiswarrantsrecognitionasanewgeologictimeunitknownastheAnthropocene.

WereviewanthropogenicmarkersoffunctionalchangesintheEarthsystemthroughthestratigraphicrecord.Theappearanceofmanufacturedmaterialsinsediments,includingaluminum,plastics,andconcrete,coincideswithglobalspikesinfalloutradionuclidesandparticulatesfromfossilfuelcombustion.Carbon,nitrogen,andphosphoruscycleshavebeensubstantiallymodifiedoverthepastcentury.Ratesofsea-levelriseandtheextentofhumanperturbationoftheclimatesystemexceedLateHolocenechanges.Bioticchangesincludespeciesinvasionsworldwideandacceleratingratesofextinction.ThesecombinedsignalsrendertheAnthropocenestratigraphicallydistinctfromtheHoloceneandearlierepochs.第31頁(yè)實(shí)例二的摘要TheAnthropoceneisfunctionallyandstratigraphicallydistinctfromtheHolocene第一、二句交代研究領(lǐng)域及主題:人類活動(dòng)在地球上留下了普遍而持久的印記,關(guān)于這是否可表明被稱作的人類紀(jì)是一個(gè)新的地質(zhì)時(shí)期的激烈爭(zhēng)論一直存在。

HumanactivityisleavingapervasiveandpersistentsignatureonEarth.VigorousdebatecontinuesaboutwhetherthiswarrantsrecognitionasanewgeologictimeunitknownastheAnthropocene.

第32頁(yè)實(shí)例二的摘要第一、二句第三句指出研究目的(本文工作),通過(guò)地層記錄回顧地球系統(tǒng)功能變化的人類起源標(biāo)記。WereviewanthropogenicmarkersoffunctionalchangesintheEarthsystemthroughthestratigraphicrecord.第33頁(yè)實(shí)例二的摘要第三句第四至七句闡述結(jié)果,給出由回顧得出的結(jié)論性認(rèn)識(shí):包括鋁、塑料和混凝土在內(nèi)的沉積物中制造材料的出現(xiàn),與化石燃料燃燒產(chǎn)生的放射性核素和微粒的全球峰值相吻合;在過(guò)去的一個(gè)世紀(jì)里,碳、氮和磷的循環(huán)發(fā)生了很大改變;海平面上升的速率和人類對(duì)氣候系統(tǒng)的干擾程度超過(guò)了全新世晚期的變化;生物變化包括世界范圍的物種入侵和加速滅絕的速度。Theappearanceofmanufacturedmaterialsinsediments,includingaluminum,plastics,andconcrete,coincideswithglobalspikesinfalloutradionuclidesandparticulatesfromfossilfuelcombustion.Carbon,nitrogen,andphosphoruscycleshavebeensubstantiallymodifiedoverthepastcentury.Ratesofsea-levelriseandtheextentofhumanperturbationoftheclimatesystemexceedLateHolocenechanges.第34頁(yè)實(shí)例二的摘要第四至七句第八句進(jìn)行總結(jié),給出總結(jié)性結(jié)論:以上各種信息結(jié)合起來(lái)使人類紀(jì)的地層學(xué)與全新世和更早期的截然不同。Bioticchangesincludespeciesinvasionsworldwideandacceleratingratesofextinction.ThesecombinedsignalsrendertheAnthropocenestratigraphicallydistinctfromtheHoloceneandearlierepochs.第35頁(yè)實(shí)例二的摘要第八句實(shí)例TheoriginsofhighhardeningandlowductilityinmagnesiumNature,2015,526:62?67[2023-12-13]./articles/nature15364第36頁(yè)

7.6

摘要和結(jié)論實(shí)例對(duì)比37Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulationsutilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsictomagnesium,drivenbyreductionindislocationenergyandpredictedtooccuratveryhighfrequencyatroomtemperature,thuseliminatingallmajordislocationslipsystemsabletocontributetoc-axisstrainandleadingtothehighhardeningandlowductilityofmagnesium.⑤Enhancedductilitycanthusbeachievedbyincreasingthetimeandtemperatureatwhichthetransitionfromtheeasy-glidemetastabledislocationtotheimmobilebasal-dissociatedstructuresoccurs.⑥Ourresultsprovidetheunderlyinginsightsneededtoguidethedesignofductilemagnesiumalloys.Conclusions

Insummary,useofanewDFT-validatedinteratomicpotentialinlong-timeMDstudiesrevealsarichsetofintrinsicstructuraltransitionsofthekey<c+a>dislocationsinMgthatexplainlong-standingexperimentalpuzzlesandareresponsibleforlowductilityinMg.

Theeasy-glidepyramidalII<c+a>undergoesthermallyactivated,stressdependenttransitionsintovariouslower-energyproductslyingonbasalplanes.

Thedislocationstructuresareingoodagreementwithexperimentalobservations,thedifferencesbetweenexperimentsareexplained,thetemperaturerangewherethetransitionisoperativeagreeswithexperiments,andtheproductdislocationsareimmobileandsocausehighstrainhardeningbyservingasobstaclesforallotherdislocations,leadingtolowductility.

ThisnewoverallunderstandingopensopportunitiesfordesignofMg-basedalloysbasedonthemechanisticconceptofenergeticallystabilizingtheeasy-glide<c+a>dislocationsonpyramidalIIplanes.Nature2015:Theoriginsofhighhardeningandlowductilityinmagnesium38Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulationsutilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsictomagnesium,drivenbyreductionindislocationenergyandpredictedtooccuratveryhighfrequencyatroomtemperature,thuseliminatingallmajordislocationslipsystemsabletocontributetoc-axisstrainandleadingtothehighhardeningandlowductilityofmagnesium.⑤Enhancedductilitycanthusbeachievedbyincreasingthetimeandtemperatureatwhichthetransitionfromtheeasy-glidemetastabledislocationtotheimmobilebasal-dissociatedstructuresoccurs.⑥Ourresultsprovidetheunderlyinginsightsneededtoguidethedesignofductilemagnesiumalloys.Conclusions

Insummary,useofanewDFT-validatedinteratomicpotentialinlong-timeMDstudiesrevealsarichsetofintrinsicstructuraltransitionsofthekey<c+a>dislocationsinMgthatexplainlong-standingexperimentalpuzzlesandareresponsibleforlowductilityinMg.

Theeasy-glidepyramidalII<c+a>undergoesthermallyactivated,stressdependenttransitionsintovariouslower-energyproductslyingonbasalplanes.

Thedislocationstructuresareingoodagreementwithexperimentalobservations,thedifferencesbetweenexperimentsareexplained,thetemperaturerangewherethetransitionisoperativeagreeswithexperiments,andtheproductdislocationsareimmobileandsocausehighstrainhardeningbyservingasobstaclesforallotherdislocations,leadingtolowductility.

ThisnewoverallunderstandingopensopportunitiesfordesignofMg-basedalloysbasedonthemechanisticconceptofenergeticallystabilizingtheeasy-glide<c+a>dislocationsonpyramidalIIplanes.Nature2015:Theoriginsofhighhardeningandlowductilityinmagnesium①直接切入背景,提出表觀問(wèn)題,塑性差、很難形成和使用及輕量化結(jié)構(gòu)均是相關(guān)研究問(wèn)題與目標(biāo),也是材料和工業(yè)界常識(shí)用詞通俗易懂,讀者群體較寬泛,材料類在讀博士,10000人無(wú)障礙閱讀通過(guò)無(wú)問(wèn)題39Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulations

utilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.

③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsictomagnesium,drivenbyreductionindislocationenergyandpredictedtooccuratveryhighfrequencyatroomtemperature,thuseliminatingallmajordislocationslipsystemsabletocontributetoc-axisstrainandleadingtothehighhardeningandlowductilityofmagnesium.⑤Enhancedductilitycanthusbeachievedbyincreasingthetimeandtemperatureatwhichthetransitionfromtheeasy-glidemetastabledislocationtotheimmobilebasal-dissociatedstructuresoccurs.⑥Ourresultsprovidetheunderlyinginsightsneededtoguidethedesignofductilemagnesiumalloys.Conclusions

Insummary,useofanewDFT-validatedinteratomicpotentialinlong-timeMDstudiesrevealsarichsetofintrinsicstructuraltransitionsofthekey<c+a>dislocationsinMgthatexplainlong-standingexperimentalpuzzlesandareresponsibleforlowductilityinMg.

Theeasy-glidepyramidalII<c+a>undergoesthermallyactivated,stressdependenttransitionsintovariouslower-energyproductslyingonbasalplanes.

Thedislocationstructuresareingoodagreementwithexperimentalobservations,thedifferencesbetweenexperimentsareexplained,thetemperaturerangewherethetransitionisoperativeagreeswithexperiments,andtheproductdislocationsareimmobileandsocausehighstrainhardeningbyservingasobstaclesforallotherdislocations,leadingtolowductility.

ThisnewoverallunderstandingopensopportunitiesfordesignofMg-basedalloysbasedonthemechanisticconceptofenergeticallystabilizingtheeasy-glide<c+a>dislocationsonpyramidalIIplanes.Nature2015:Theoriginsofhighhardeningandlowductilityinmagnesium②進(jìn)入方法、發(fā)現(xiàn),涉及難懂的專業(yè)知識(shí)。核心方法是分子動(dòng)力學(xué)模擬、密度泛函理論,而揭示…現(xiàn)象是重要成果(但未交待具體結(jié)果),揭示是表學(xué)術(shù)質(zhì)量的定性詞開(kāi)始涉及難懂的術(shù)語(yǔ),對(duì)分子動(dòng)力學(xué)和密度泛函,材料物理、材料化學(xué)方面的專業(yè)人士才可能懂得較多,10000博士中可能就只有1000人能輕松理解了

概括總結(jié)全文,直接點(diǎn)明使用方法而獲得重要發(fā)現(xiàn)(揭示…,解釋宏觀性能的一個(gè)疑團(tuán))與摘要②不同:摘要告知做了什么,但未告具體所得結(jié)果(摘要的廣告性);結(jié)論告知做了什么,并將具體結(jié)果一起放送,散發(fā)著學(xué)術(shù)筆記風(fēng)味有<c+a>小圈子術(shù)語(yǔ),1000人能輕松理解了40Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulationsutilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsictomagnesium,drivenbyreductionindislocationenergyandpredictedtooccuratveryhighfrequencyatroomtemperature,thuseliminatingallmajordislocationslipsystemsabletocontributetoc-axisstrainandleadingtothehighhardeningandlowductilityofmagnesium.⑤Enhancedductilitycanthusbeachievedbyincreasingthetimeandtemperatureatwhichthetransitionfromtheeasy-glidemetastabledislocationtotheimmobilebasal-dissociatedstructuresoccurs.⑥Ourresultsprovidetheunderlyinginsightsneededtoguidethedesignofductilemagnesiumalloys.Conclusions

Insummary,useofanewDFT-validatedinteratomicpotentialinlong-timeMDstudiesrevealsarichsetofintrinsicstructuraltransitionsofthekey<c+a>dislocationsinMgthatexplainlong-standingexperimentalpuzzlesandareresponsibleforlowductilityinMg.

Theeasy-glidepyramidalII<c+a>undergoesthermallyactivated,stressdependenttransitionsintovariouslower-energyproductslyingonbasalplanes.

Thedislocationstructuresareingoodagreementwithexperimentalobservations,thedifferencesbetweenexperimentsareexplained,thetemperaturerangewherethetransitionisoperativeagreeswithexperiments,andtheproductdislocationsareimmobileandsocausehighstrainhardeningbyservingasobstaclesforallotherdislocations,leadingtolowductility.

ThisnewoverallunderstandingopensopportunitiesfordesignofMg-basedalloysbasedonthemechanisticconceptofenergeticallystabilizingtheeasy-glide<c+a>dislocationsonpyramidalIIplanes.Nature2015:Theoriginsofhighhardeningandlowductilityinmagnesium③較為細(xì)致表述研究結(jié)果的理論部分,闡明鎂金屬微觀世界發(fā)生的現(xiàn)象,如位錯(cuò)、滑移想要說(shuō)明宏觀現(xiàn)象,自然從微觀找原因。到此能順暢理解的差不多還有200人吧

重述鎂金屬的微觀行為,與摘要有重復(fù),卻必要疲憊不堪的閱讀快要結(jié)束時(shí),用貼切的總結(jié)語(yǔ)來(lái)結(jié)束,給讀者莫大關(guān)懷,但要更加直截了當(dāng)、簡(jiǎn)潔明快,任何冗余語(yǔ)句都不要再出現(xiàn)41Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulationsutilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsictomagnesium,drivenbyreductionindislocationenergyandpredictedtooccuratveryhighfrequencyatroomtemperature,thuseliminatingallmajordislocationslipsystemsabletocontributetoc-axisstrainandleadingtothehighhardeningandlowductility

ofmagnesium.⑤Enhancedductilitycanthusbeachievedbyincreasingthetimeandtemperatureatwhichthetransitionfromtheeasy-glidemetastabledislocationtotheimmobilebasal-dissociatedstructuresoccurs.⑥Ourresultsprovidetheunderlyinginsightsneededtoguidethedesignofductilemagnesiumalloys.Conclusions

Insummary,useofanewDFT-validatedinteratomicpotentialinlong-timeMDstudiesrevealsarichsetofintrinsicstructuraltransitionsofthekey<c+a>dislocationsinMgthatexplainlong-standingexperimentalpuzzlesandareresponsibleforlowductilityinMg.

Theeasy-glidepyramidalII<c+a>undergoesthermallyactivated,stressdependenttransitionsintovariouslower-energyproductslyingonbasalplanes.

Thedislocationstructuresareingoodagreementwithexperimentalobservations,thedifferencesbetweenexperimentsareexplained,thetemperaturerangewherethetransitionisoperativeagreeswithexperiments,andtheproductdislocationsareimmobileandsocausehighstrainhardeningbyservingasobstaclesforallotherdislocations,leadingtolowductility.

ThisnewoverallunderstandingopensopportunitiesfordesignofMg-basedalloysbasedonthemechanisticconceptofenergeticallystabilizingtheeasy-glide<c+a>dislocationsonpyramidalIIplanes.Nature2015:Theoriginsofhighhardeningandlowductilityinmagnesium④接著③繼續(xù)表述,微觀升級(jí)到宏觀,機(jī)理外化到現(xiàn)象,回到標(biāo)題。如室溫、高硬化、低塑性是宏觀的概念,問(wèn)題表象層專業(yè)性最強(qiáng)、艱澀,可能只有100人能理解

實(shí)驗(yàn)驗(yàn)證+重述鎂宏觀行為(位錯(cuò)、高硬化和低塑性),與摘要重復(fù),宏觀行為易受到關(guān)注摘要在于點(diǎn)出發(fā)現(xiàn),有無(wú)創(chuàng)新是關(guān)鍵,結(jié)論還要對(duì)新發(fā)現(xiàn)提供保證,有無(wú)驗(yàn)證和可信度是關(guān)鍵42Abstract①M(fèi)agnesiumisalightweightstructuralmetalbutitexhibitslowductility—connectedwithunusual,mechanisticallyunexplained,dislocationandplasticityphenomena—whichmakesitdifficulttoformanduseinenergy-savinglightweightstructures.②Weemploylong-timemoleculardynamicssimulationsutilizingadensity-functional-theoryvalidatedinteratomicpotential,andrevealthefundamentaloriginsofthepreviouslyunexplainedphenomena.③Hereweshowthatthekey<c+a>dislocation(where<c+a>indicatesthemagnitudeanddirectionofslip)ismetastableoneasy-glidepyramidalIIplanes;wefindthatitundergoesathermallyactivated,stress-dependenttransitiontooneofthreelower-energy,basal-dissociatedimmobiledislocationstructures,whichcannotcontributetoplasticstrainingandthatserveasstrongobstaclestothemotionofallotherdislocations.

④Thistransitionisintrinsi

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