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简介：Terfenol-Disthebestavailablemagnetostrictionmaterialatpresent.Itsmagnetostrictivestraincanreachashighas2000ppm,yetmanypracticalconditionsmustbereasonablycontrolledtoobtainthisfigure.Dr.GuoHeetal.ofBeijingUniversityofScienceandTechnologyinvestigatedtheeffectofsolidificationvelocityonthecrystalorientationofTb-Dy-Fesamples.Theyhavedevelopedaqualitativecriterionforstablecrystalgrowthinpreferred

简介：AquestionaboutscienceWearenowlivinginascientificera,inwhichthetheoryandpracticeofsciencehavepenetratedintoallaspectsofsocietyandscienceisoftenahottopic.However,whatonearthisscience?Thisquestionislargelyneglectedbymanypeople,evenresearchersfocusingonscientificstudiesmaynothaveaveryclearunderstandingofit.

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简介：ChineseScienceBulletinreportsontheinnovativeachievementsinallsubjectareasinscience.Itisaplaceforthehigh-levelexchangebetweenscientistsfrombothChinaandabroad.ChineseScienceBulletinisindexedbySCI,CA,etc.ChineseScienceBulletinprintversionisdistributedglobally.Itselectronicversionisavailableatwww.springerlink.comTheeditor-in-chiefandtheexecutiveeditorsformthecoreofleadershipofChineseScienceBulletin.Thereviewprocess,withfairnessasoneofitspriorities,isorganizedbytheeditor-in-chiefandtheexecutiveeditorswiththeassistanceoftheassociateeditors.ChineseScienceBulletinfeaturesarticles,reviewsandnewsandviews.ChineseScienceBulletinisasemimonthly,24issuesayear,publishingmorethan500articles.

简介：Dr.YiminChaoofJiangsuInstituteofPetrochemistry,JiangsucollaboratedwithDr.JianguoZhaoofMassachusettsInstituteofTechnology,USAonajointresearchproject"StudyonthePhotoluminescenceofT1GaS2andTiGaS2.Er3+SingleCrystal".TheygrewthetitlesinglecrystalsbytheBridgmantechnique.Theyfoundthatthephotoluminescencemechanismofthecrystalsiscloselyre-

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