职称英语真题《理工C》概括大意真题.docx
上传人:康佳****文库 上传时间:2024-09-13 格式:DOCX 页数:9 大小:13KB 金币:10 举报 版权申诉
预览加载中,请您耐心等待几秒...

职称英语真题《理工C》概括大意真题.docx

职称英语真题《理工C》概括大意真题.docx

预览

在线预览结束,喜欢就下载吧,查找使用更方便

10 金币

下载此文档

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

职称英语真题《理工C》概括大意真题职称英语真题《理工C》概括大意真题精选2017年职称英语考试复习已经开始,为了让大家了解职称英语考试难易程度,以下是yjbys网小编整理的关于职称英语真题《理工C》概括大意真题精选,供大家备考。NewResearchLightstheWaytoSuper-fastComputers(1)NewresearchpublishedtodayinthejournalNatureCommunications,hasdemonstratedhowglasscanbemanipulatedtocreateamaterialthatwillallowcomputerstotransferinformationusinglight.Thisdevelopmentcouldsignificantlyincreasecomputerprocessingspeedsandpowerinthefuture.(2)TheresearchbytheUniversityofSurrey,incollaborationwiththeUniversityofCambridgeandtheUniversityofSouthampton,hasfounditispossibletochangetheelectronicpropertiesofamorphouschalcogenides,aglassmaterialintegraltodatatechnologiessuchasCDsandDVDs.Byusingatechniquecallediondoping,theteamofresearchershavediscoveredamaterialthatcoulduselighttobringtogetherdifferentcomputingfunctionsintoonecomponent,leadingtoall-opticalsystems.(3)Computerscurrentlyuseelectronstotransferinformationandprocessapplications.Ontheotherhand,datasourcessuchastheIntemetrelyonopticalsystems;thetransferofinformationusinglight.Opticalfibersareusedtosendinformationaroundtheworldatthespeedoflight,butthesesignalsthenhavetobeconvertedtoelectricalsignalsoncetheyreachacomputer,causingasignificantslowdowninprocessing.(4)"Thechallengeistofindasinglematerialthatcaneffectivelyuseandcontrollighttocarryinformationarotmdacomputer.Muchlikehowthewebuseslighttodeliverinformation,wewanttouselighttobothdeliverandprocesscomputerdata,"saidprojectleader,DrRichardCurryoftheUniversityofSurrey.(5)"Thishaseludedresearchersfordecades,butnowwehavenowshownhowawidelyusedglasscanbemanipulatedtoconductnegativeelectrons,aswellaspositivecharges,creatingwhatareknownas'pn-junction'devices.Thisshouldenablethematerialtoactasalightsource,alightguideandalightdetector--somethingthatcancarryandinterpretopticalinformation.Indoingso,thiscouldtransformthecomputersoftomorrow,allowingthemtoeffectivelyprocessinformationatmuchfasterspeeds."(6)Theresearchersexpectthattheresultsofthisresearchwillbeintegrat