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简介：CloudresolvingWeatherResearchandForecasting(WRF)modelsimulationsareusedtoinvestigatetropicalcyclone(TC)genesisefficiencyinanenvironmentwithanearbottomvortex(EBV)andanenvironmentwithamid-levelvortex(EMV).Sensitivityexperimentsshowthatthegenesistimingdependsgreatlyoninitialvorticityverticalprofiles.Thelargertheinitialcolumnintegratedabsolutevorticity,thegreaterthegenesisefficiencyis.Giventhesamecolumnintegratedabsolutevorticity,abottomvortexhashighergenesisefficiencythanamid-levelvortex.Acommonfeatureamongtheseexperimentsistheformationofamid-levelvorticitymaximumpriortoTCgenesisirrespectivewheretheinitialvorticitymaximumlocates.BoththeEMVandEBVscenariossharethefollowingdevelopmentcharacteristics:1)atransitionfromnon-organizedcumulus-scale(~5km)convectivecellsintoanorganizedmeso-vortex-scale(~50to100km)systemthroughupscalecascadeprocesses,2)theestablishmentofanearlysaturatedaircolumnpriortoarapiddropofthecentralminimumpressure,and3)amultipleconvective-stratiformphasetransition.Agenesisefficiencyindex(GEI)isformulatedthatincludesthefollowingfactors:initialcolumnintegratedabsolutevorticity,vorticityattopoftheboundarylayerandverticallyintegratedrelativehumidity.ThecalculatedGEIreflectswellthesimulatedgenesisefficiencyandthusmaybeusedtoestimatehowfastatropicaldisturbancedevelopsintoaTC.

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简介：Wedemonstrateanintegratedall-fibermid-infrared（mid-IR）supercontinuum（SC）sourcegeneratedbya1.95μmmasteroscillatorpoweramplifiersystemandasingle-modeZBLAN（ZrF4–BaF2–LaF3–AlF3–NaF）fiber.Themaximumaverageoutputpoweris10.67Wwithspectralbandwidthcoveringfrom～1.9to4.1μm.Thesingle-modeZBLANfiberandsilicafiberarethermal-splicedtoenhancetherobustnessandpracticabilityofthesystem.Itis,tothebestofourknowledge,thefirsthigh-powerintegratedcompactedall-fibermid-IRSCsourcebasedonthermal-splicedsilicafiberandZBLANfiber.

简介：it could not be omitted from the Mid-Autumn Festival.The round moon cakes,there are hundreds varieties of moon cakes on sale a month before the arrival of Moon Festival.,people hold ceremonies to greet winter and worship the moon whenever the Mid-Autumn Festival sets in. It becomes very prevalent in the Tang Dynasty(618-907 A.D.) that people enjoy and worship the full moon. In the Southern Song Dynasty (1127-1279 A.D.)

简介：it could not be omitted from the Mid-Autumn Festival.The round moon cakes,there are hundreds varieties of moon cakes on sale a month before the arrival of Moon Festival.,ordered the making of special cakes. Backed into each moon caked was a message with the outline of the attack. On the night of the Moon Festival

简介：Amaninhis40sboughtanewBMWandwasoutontheinterstateforaniceeveningdrive.Thetopwasdown,thebreezewasblowingthroughwhatwasleftofhishair,andhede-cidedgoopenherup.Astheneedlejumpedupto80mph,hesuddenlysawflashingflashingredandbluelightsbehindhim.“TheresnowaytheycancatchaBMW,”hethoughttohimselfandopenedherupfurther.Theneedlehit90,100...thentherealityofthesituationhithim.

简介：Asmid-infrared(MIR)lasersshownumerousapplicationsinthefieldofdefense,medical,materialsprocessing,andopticalcommunications.InvestigationonMIRRamanfiberlasers(RFLs)increasinglybecomesahottopic.Comparedwiththetraditionalsilicafibers,fluorideandchalcogenideglassfiberspossesshighernonlinearcoefficientsandexcellentMIRtransmittances.Inthisarticle,thelatestdevelopmentsoftheMIRRFLsusingfluorideandchalcogenideglassfibersasgainmediaareintroduced,respectively.ThisreviewarticlemainlyfocusesonthedevelopmentsofMIRRFLsinaspectsofoutputwavelength,outputpower,andopticalefficiency.Besides,theprospectofMIRRFLsisalsodiscussed.

简介：The2ndMid-EuropeanClayConference(MECC'04)washeldbetween20-24thSeptember2004,inMiskolc,Hungary.Theideatoholdcommonconferenceswasacceptedbythenationalclaygroupsoffourneighbouringcountries,Poland,Slovakia,HungaryandCroatia,duringtheEUROCLAYMeetinginCracow,Poland,in1999.Thefirstconferencewasheldin2001atStaráLesná,intheHighTatraMts.inSlovakia.

简介：Mid-infrared(mid-IR)lasers,generallydefinedashavinganoperationwavelengthinthespectralregionof2μmto20μm,haveattractedgreatscientificandtechnologicalinterestsowingtotheirwidespreadapplications.Thiswavelengthrangenotonlycontainssome

简介：时下，Android大潮势不可挡，冲入了导航和平板两个领域，由此便引出了到底是平板导航化还是导航平板化的争论。目前有些带有Android系统的MID引入了GPS芯片，兼具导航功能。

简介：ＳｉｇｈｆｅｒｔｉｌｉｔｙｌｅｖｅｌｉｎＴｉｂｅｔＺｈａｎｇＴｉａｎｌｕＤａｔａｆｒｏｍｔｈｅ１９８２ａｎｄ１９９０ｃｅｎｓｕｓｅｓｉｎＴｉｂｅｔｓｈｏｗｔｈｅｂｉｒｔｈｒａｔｅｉｎＴｉｂｅｔａｎｄｉｎａｌｔｈｅｐｒｅｆｅｃｔｕｒｅｓｏｆｔｈｅＲｅｇ...

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简介：Althoughvariousgenomeprojectshaveprovidedusenormousstaticsequenceinformation,understandingofthesophisticatedbiologycontinuestorequireintegratingthecomputationalmodeling,systemanalysis,technologydevelopmentforexperiments,andquantitativeexperimentsalltogethertoanalyzethebiologyarchitectureonvariouslevels,whichisjusttheoriginofsystemsbiologysubject.Thisreviewdiscussestheobject,itscharacteristics,andresearchattentionsinsystemsbiology,andsummarizestheanalysismethods,experimentaltechnologies,researchdevelopments,andsooninthefourkeyfieldsofsystemsbiology-systemicstructures,dynamics,controlmethods,anddesignprinciples.

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简介：IntroductionErrorsareunavoidableinlanguagelearning,however,toagreatextent,teachersinmostmiddleschoolsinChinaregarderrorsasundesirable,asignoffailureinlanguagelearning.Mostmiddleschoolsarestillusingthegrammar-translationmethodwhichaimsatencouragingstudentstoreadscientificworksandenjoyliteraryworks.Theothergoalsofthismethodaretogainagreaterunderstandingofthefirstlanguageandtoimprovethestudents’abilitytocopewithdifficultsubjectsandmaterials,i.e.todevelopthestudents’minds.Thepracticalpurposeofusingthismethodistohelplearnerspasstheannualentranceexamination."Toachievethesegoals,thestudentsmustfirstlearngrammarandvocabulary,...Grammaristaughtdeductivelybymeansoflongandelaborateexplanations...studentslearntherulesofthelanguageratherthanitsuse."(TangLixing,1983:11-12)

简介：Whenpeopleadviseyourchildrento“getaneducation”,ifyouwanttoraiseyourpayment,theytellyouonlyhalfthetruth.Whattheyreallymeanistogetjustenougheducationtogivemanpower(人力)foryoursociety,butnotsomuchthatyouproveadifficultytoyoursociety.

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