简介:Jiaxing:SteppingOutFromShanghai'sShadowBystaffreporterLuHUISUZHOUANDHangzhouhavelongbeendescribedbytheChineseasaparadiseforda...
简介:Chinaofficiallyadoptedits'GoingOut'strategyin2001whenitwasincludedintheTenthFive-Yearplan.Overthepastdecade,thepolicyhasgonefromstrengthtostrength:fromitslaunch,toitsprudentexecution,andtoeffortsmadetoadvanceitfurther(asmentionedinitsinclusionintheTwelfthFive-Yearplan).'GoingOut'isanobviousnextstepforarapidlyrisingChinaduringaperiodofstrategicopportunities.
简介:<正>Thetwo-lanehighwayfromNanjingtoShanghai,completedonlyafewyearsago,hasalreadyturnedintoabottleneck.Itseemsthatthepeopleinchargeofplanningtheroadsystem,inwhatevercountry,haveatendencytounderestimatepeople’sfondnessformotorvehicles.UnlikethesituationinplacesliketheUnitedKingdomorGermany,however,wherewideningaroadcantakeseveraldecades,notimeisbeingwastedbythepowersthatbeinJiangsuProvince.It’sacostlyexercise,forsure,butthisistherichestpartof
简介:Manybiologicalmaterials,suchaswoodandbone,possesshelicoidmicrostructuresatmicroscale,whichcanserveasreinforcingelementstotransferstressbetweencracksurfacesandimprovethefracturetoughnessoftheircomposites.Failureprocesses,suchasfiber/matrixinterfacedebondingandslidingassociatedwithpull-outofhelicalfibers,areresponsiblemainlyforthehighenergydissipationneededforthefracturetoughnessenhancement.Herewepresentsystemicanalysesofthepull-outbehaviorofahelicalfiberfromanelasticmatrixviathefiniteelementmethod(FEM)simulation,withimplicationsregardingtheunderlyingtougheningmechanismofhelicoidmicrostructures.Wefindthat,throughtheiruniformcurvatureandtorsion,helicalfiberscanprovidehighpull-outforceandlargeinterfaceareas,resultinginhighenergydissipationthataccounts,toalargeextent,forthehightoughnessofbiologicalmaterials.Thehelicityoffibershapeintermsofthehelicalanglehassignificanteffectsontheforce-displacementrelationshipsaswellasthecorrespondingenergydissipationduringfiberpull-out.
简介:Howdoyougetoutofdifficultieswhenyoufeeltrappedbythem?Perhapsyouhaveyourownmeanstocopewiththem.SodoI.Eachofusmaymeetwithcertainproblemswhichalwayswaitinunnoticedcomersforagoodchancetoswoopdownuponus.Forexample,whenwestudentsstrivetogetreadyforaforthcomingNationalCollegeEnglishExamination,BandFourorBandSix,wemaydiscoverthatwehavetroublewithlisteningcomprehension,readingcomprehension,selectingvocabularystructures,writingcompositionsorotherthingslikethese.Inthesecases,whatcanwedo?Giveuphopelesslyorgoaheadfearlessly?IbelievethatIpreferthelatter.