研15机械、电气第三次作业提示：请同学们新建一个word文档，将word文档的文件名以你的“班级学号姓名第三次作业”的格式命名，然后按照题目顺序依次在word文档里作答，注意随时保存你的作业内容，待检查无误后以e-mail的形式发至9861LPL@163，邮件的主题处也须注明你的“班级学号姓名第三次作业”。（注意：发送邮件之前请在自己的邮箱中保存一份，以便留底备查。）一、请利用我校图书馆主页上的ElsevierScienceDirect数据库进行检索：1、通过主题浏览方式（Browsepublicationsbysubject），查找你所学专业的图书和期刊，任选其中一种期刊，选择其近三年的某一期，复制其中你感兴趣的一篇论文的题录、摘要及正文第一段。答：2014AASRIConferenceonCircuitandSignalProcessing(CSP2014)Three-DimensionalReconstructionfromProjectionsBasedOnIncidenceMatricesofPatternsZakharovAlexei,ZhiznyakovArkady*MuromInstitut,VladimirStateUniversity,Murom,602264,RussianFederationAbstractTaskofautomaticreconstructionofthree-dimensionalobjectsbydrawingviewspresented.Thealgorithmbasedonaboundaryrepresentationofthree-dimensionalmodels.Thealgorithmconsistsofthefollowingsteps:automaticseparationofthedrawingpertheviews,determinationofthree-dimensionalcoordinatesofvertices,definitionandmarkingofwiremodelprimitives,reconstructionofmodelfacesandmodelelements.Thefundamentalconceptofthealgorithmistofindthestructuralelementsofthree-dimensionalmodelwithusageofpre-specifiedpatterns.Thetemplatesaredescribedbymeansofmatrices.Matchingalgorithmusesinvariants:thenumberofvertices,typeofedges.2014ZakharovA.A.,ZhiznyakovA.L.PublishedbyElsevierB.V.Selectionand/orpeerreviewunderresponsibilityofAmericanAppliedScienceResearchInstituteKeywords:three-dimensionalreconstruction,CAD-system,incidencematrix.1.IntroductionForthemoment,alargenumberofthetechnicaldrawings,submittedinbothpaperandelectronicformareaccumulatedinthearchivesoftheenterprises.Anadditionalpointisthatthedevelopmentofmanyobjectsoftenbeginswiththedrawinginsteadofthree-dimensionalmodelusage.Two-dimensionaldrawingsareoftendifficulttounderstand,theyareinconvenienttoupdateandtheonescannotserveasabasisforfurtherdevelopmentswithcomputersystemsusage.Thethree-dimensionalcomputermodeloftheobject,whichcanbeusedfordevelopmentofsupervisorprograms,engineeringanalysis,visualization,etc.,isoneofthecomponentsofelectronicmodelofproduct.ThemodernCAD-systemshavethefollowingbevyoftoolstogeneratethethree-dimensionalmodels“withacleanslate”:Booleanoperations,theoperationsofobject-orientedmodeling,2.5D-operations,modificationoperationsofvertices,edgesandfaces.PracticallyallCAD-systemsallowthegenerationofdrawingswithusageofthree-dimensionalmodel.However,generationofthree-dimensionalmodelperdrawingcausesthedesignersdifficulties,relatedtothelackofsoftware.2、在ElsevierScienceDirect中采用高级检索方式查找机构为南通大学的信息，写出结果总数，按照左侧精炼的检索结果，将Publicationtitle、Topic这两类中发文最多的前五种复制到作业中。答：结果总数：Searchresults:1,375resultsfoundforAFFILIATION(nantonguniversity).Publicationtitle1.TheJournalofHandSurgery(39)2.NeuroscienceLetters(32)3.Alzheimer'sDementia(28)4.BiochemicalandBiophysicalResearchCommunicat...(26)5.CorrosionScience(24)Topic1.tendon(14)2.alternativesplice(9)3.alzheimerdisease(8)4.cell(7)5.corrosion(6)3、将第二题的检索结果按照日期排序，然后将前三篇文章输出（Export）文本格式的引文和摘要，并将它们复制到作业中。答：FandiMeng,LiLiu,WenliangTian,HangWu,YingLi,TaoZhang,FuhuiWang,Theinfluenceoft...