个人自传范例:生物物理(博士)_

Biophysicsdevelofastwiththefruitsofmodernphysicsandchemistry.Thereisawiderangeoffascinatingquestioinunderstandinglifesystems.Duringtheseyears"studyatTsinghuaUniversity,Icotantlytriedtoimprovemyselfthroughindependentreading.ThiskeptmewellinformedofthelatestdevelopmentinBiophysicswhichattractsmealot.E.Schrodinger"sfamouswork"WhatisLife"letmethinkalotofquestioinBiophysics.Uptonow,physicisthavemadegreatsucceinstudyingsimpleperiodiccrystals,butforthecomplexbiologicalstructurespoebothaperiodicityandordersuchasDNA,therestillexistmanychallenges.Whytheseaperiodicmattercancontrolthelifestrictlyandprecisely?Whyasmallamountofnaturecatalyst-enzymecanbefarmoreefficientthanplentyofman-madecatalysts?Isthegrowthoflifedeterminedbygeneticmaterialsorbyself-aemblyorbybothofthem?Fromthebook"LiquidCrystalsandBiologicalStructures"writtenbyGleH.BrownandJeromeJ.Wolken,Igotdeeperunderstandingofbiologicalstructureswhichpoebothmobilityandlong-rangestructureorder,reondtoavarietyofexternalstimulijustlikethepropertiesofliquidcrystals.Thestrikingarchitectureatthemolecularlevelshowsthereisacommonphysical-chemicaloriginforalllifesystems.Theorientedmoleculesinliquidcrystalsfurnishanidealmediumforcatalyticaction,particularlyofthecomplextypeneededtoaccountforgrowthandreproduction.Water,eeciallytheweakhydrogenbondplayscriticalroleinallorganism.Itdeterminestheproteinfolding,stabilizesthedoublehelixstructureofDNA.Ifwesutitutedeuteriumforhydrogen,thebiologicalsystemmaybedestroyed.

Manyphysicalandmathematicalaroachescanbealiedtobiologysuchasthequantummechanics,non-equilipiumthermodynamics,informationtheory.Butabasicdifficultbyusingthenon-equilipiumthermodynamicsinbiologyistheatialheterogeneityinbiologicalsystemsandthefeedbackexistinginallkindsofreactioandprocees.CondeedMatterPhysicsalsoconcercloselywithBiophysics.Thetheoryofphasetraitioandcriticalphenomenacanbeusedtoexplainproblemssuchashowthetemperatureofthephasetraitionoflipidsfromthesolidstatetotheliquidcrystallinedependsonthefattyacidcomposition

Ontheotherhand,researchesinbiophysicsalsopushforwardthedevelopmentofphysics,leadtomorealicatioinbionicssuchasAIandneuralnetwork

NowIamdoingmyDiplomaThesisattheItituteofPhysics,ChineseAcademyofScience.MyTopicisaboutinvestigatingcoherentbackscatteringinarandomscatteringmediumbytheHe-Newlaser.Lightincertaindielectricmicrostructuresexhibitslocalizedmodes,similartothelocalizedwavefunctionofelectroindisorderedsolids-AndersonLocalization.Thepropagationoflightinascatteringmediumcanbedescribedasrandomwalkofphotowiththedirectionofeachsucceedingstepdeterminedbythelawsofprobability.TheTopicathedisciplinesofCondeedMatterPhysicsandQuantumOpties.Ihaveaorbedalotofrelativeknowledgesuchasrandomwalk,perorationmodelsstochasticprocetoprepareformyproject.IthinkthemethodIdynamicsofchemicalreactio.

Sincemybackgroundfocusedonphysics,mathematics,electronics,lasersandoptics,Ihavetaughtmyselfsomebegiingbiologyandchemistrycoursesthisyear,discuedthemwithteachersintheDeptofBiologicalScienceandTechnologyatTsinghuaUniversityIwouldalsoliketotakemorebasiccoursesinthisfieldunderyourguidancetomakeupmydeficiency.FromcollegeguidesIlearnedwithpleasurethatyouhadstrongfacultywithavarietyofbackgroundinphysics,chemistry,mathematicsandelectricalengineering.Itisofteninthemulti-disciplinaryresearchthatcamethemostexcitingdiscovery.Yourgroupalsoprovidesoutstandingoortunitiesforcloseinteractionbetweengraduatestudentsandfaculty.ThatiswhyIdeemyourprogramasmybestchoice.Besides,IwanttolinkmodernbiophysicswithChineseMedicinetogetcompreheiveunderstandingoflife.