简介：TheU.S.election2004finallyconcluded.BushdefeatedKerryandwasre-electedU.S.President,thoughafterfiercecompetition.WhatglobalstrategyandforeignpolicywillBushtakeinhissecondtermbecomesthesubjectthatishotlydiscussed.InBush'sfirstterm,U.S.governmentunderwentthe9/11terroristevents.Afterwards,theBushadministrationlinkedanti-terrorismwithoverthrowingSaddam.Withoutampleevidence,AmericalaunchedwaragainstIraqdespiteoppositionofmajormemberstatesoftheUNSecurityCouncil,revealingitsclearconservatistinclinationandseriousunilateralact.ConsequentlyitispredictedthatBushwillcontinuesuchapolicyinhissecondtermandevengofurtheraway.However,withregardtotheoverallsituation,Bushwillpartlyrestricthisextremelyseriousunilateralpolicyandreturntoanintermediatepolicytosomeextent.Thisisrevealedinthefollowingfeatures.

简介：WithastrongpushfromthesecondClintonAdministration,NATO’sen-largementeastwardisnowinfullsteam.ThemomentumforthisrushpickedupontheeveoftheUSgeneralelectionin1996.Inhispresidentialcampaigning,BillClintonannouncedatimetableforNATOextensionwith1997astheyearfortheadmissionofthefirstbatchofnewmembers.ThetempohasfurtherspedupsincetheMarch20-211997US-RussiaHelsinkiSummit.

简介：Inthispaper,weprovetheconvergenceofthenodalexpansionmethod,anewnumericalmethodforpartialdifferentislequationsandprovidetheerrorestimatesofapproximationsolution.

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简介：四轮马车常数的性质在这笔记被调查。以hypergeometric功能，3F2被给的一个新代表和定义四轮马车常数的asymptotic序列的家庭的一个性质被形式化。而且，我们由在Poincar的意义使用gamma功能的比率的asymptotic扩大给四轮马车常数的另外的asymptotic扩大？

简介：Inthispaper,anewmethodfordealingwithsubstructurechainispresented.Here,asubstructurechainmeansastructureconsistingofanumberofidenticalsubstructuresconnectedinseries.Thismethodisparalleltotheexpansionmethodinthestructuralanalysisaccordingtothetransversesection.Themethodofshiftinvarianceandthatofinitialparameterandtransfermatrix,theirmutual-relationandcom-bineduse,aswellastheanalysisoftheeigenproblemonthetransversesection,andtheexpansionmethodbasedontheeigenvectorsaredescribedinthispaper.

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简介：Aftercapacityexpansionofsomehydroturbines,suchabnormalitiesashightemperatureofthebearing,vibrationofunits,frictionnoiseandsoon,couldbesolvedbyqualifiedinstallation,removingthediversioncrossaddedatthedrafttube,anduseofnewrunner,etc.

简介：Fluorescentproteins(FPs)withemissionwavelengthsinthefar-redandinfraredregionsofthespectrumprovidepowerfultoolsfordeep-tissueandsuper-resolutionimaging.Thedevelopmentofred-shiftedFPshasevokedwidespreadinterestandcontinuousengineeringefforts.Inthisarticle,basedonacomputationaldesignandgeneticcodeexpansion,wereportarationalapproachtosignificantlyexpandandred-shiftthechromophoreofgreenfluorescentprotein(GFP).WeappliedcomputationalcalculationstopredicttheexcitationandemissionwavelengthsofaFPchromophoreharboringunnaturalaminoacids(UAA)andidentifyinsilicoanappropriateUAA,2-amino-3-(6-hydroxynaphthalen-2-yl)propanoicacid(naphthol-Ala).OurmethodologyallowedustoformulateaGFPvariant(cpsfGFP-66-Naphthol-Ala)withred-shiftedabsorbanceandemissionspectralmaximaexceeding60and130nm,respectively,comparedtothoseofGFP.TheGFPchromophoreisformedthroughautocatalyticpost-translationalmodificationtogenerateaplanar4-(p-hydroxybenzylidene)-5-imidazolinonechromophore.WesolvedthecrystalstructureofcpsfGFP-66-naphthol-Alaat1.3■resolutionanddemonstratedtheformationofamuchlargerconjugatedn-systemwhenthephenolgroupisreplacedbynaphthol.Theseresultsexplainthesignificantred-shiftingoftheexcitationandemissionspectraofcpsfGFP-66-naphthol-Ala.

简介：Asimplifiedmathematicalmodelwascreatedformeasurementofthermalexpansioncoefficientsofthinsheetmaterialswithholographictechnique.Experimentalset-upscorrespondingtothemathematicalmodelweredesignedandbuiltforbothtestsaboveroomtemperatureandatlowtemperatures.Afringecontroltechniquewasintroducedforlowtemperaturemeasurementstocompensaterigidbodymovement,THinsheetspecimensofsiliconandaluminumalloy(7075)weretestedwiththedevelopedtechnique.Thetestedresultsareingoodagreementwithreporteddataandthusverifythevalidityofthedevelopedtechnique.TheThermalexpansioncoefficientsofthetestedmaterialsrangedfrom2.5×10^-60C^-1to23.6×10^-6oC^-1.

简介：Differenceexpansion(DE)isoneofthefamousschemesinthefieldofreversibledatahiding.Withthehighefficiencyandsimplicity,DEalsohasreceivedmoreattentionovertheyears.DEhasagoodinformationcapacity,butduetoitsmajorlocationmap,thepurepayloadisratherlow.Thereforemanyscholarsdidrelevantimprovementswhichletnpixelsasaunitinsteadoftheoriginaltwopixelsasaunitandcanadaptivelyadjustthenumberofembeddingsecretinformationaccordingtothesmoothnessdegreeoftheblock,whichachievestheresultofimprovingtheinformationpayloadortheimagequality.Inthispaper,thestudyofDE-basedreversibledatahidingschemesiscomprehensivelydiscussed.TheperformanceofDEbasedschemesisevaluatedandcomparedintermsofembeddingcapacityandstego-imagequality.

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简介：Foranyx∈(0,1](exceptatmostcountablymanypoints),thereexistsauniquesequence{dn(x)}n≥1ofintegers,calledthedigitsequenceofx,suchthat■.ThedexterinfiniteseriesexpansioniscalledtheL¨urothexpansionofx.ThispaperisconcernedwiththesizeofthesetofpointsxwhosedigitsequenceinitsL¨urothexpansionisstrictlyincreasingandcontainsarbitrarilylongarithmeticprogressionswitharbitrarycommondifference.Moreprecisely,wedeterminetheHausdorffdimensionoftheaboveset.

简介：Energydepositionofintensepulsedionbeam(IPIB)ontheTitargetbasedonthe2DmodelofIPIBdensityhasbeensimulatedbytheMonteCarlo(MC)method.Takingthedepositedenergyasthethermalsource,wehaveestablishedtheablationmodelofthetargetandcalculatedthespatialandtemporalevolutionoftheablationshapeoftheTitargetirradiatedbyIPIBwithdifferentenergydensities.WehavealsoestablishedtheejectionmodelofthehydrodynamicequationsrelatedtotheablationshapeofthetargetbyusingtheablationresultsastheinitialconditionsofplasmaformedbyIPIBirradiation.Thespatiallyandtemporallyevolutedprofilesoftheplasmapressureandmassdensityarecalculated.

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简介：IntroductionAsoneofthemostfrequentlydiagnoseddevastatingdiseases,liverfailureisresponsibleforapproximatelytwomilliondeathsannuallyworldwidewithpoorprognosis1.Althoughlivertransplantationhasbeendevelopedforthemosteffectivetreatmentforliverfailure,itisfarfromdemandsforpatientsduetotheshortageofhigh-qualitydonorliversandexpensivetreatmentcosts.Currently,withthedevelopmentofcelltherapy,celltransplantationsincludingprimaryhumanhepatocytes(PHHs),humanhepatocyte-likecells(HLCs)andliverorganoidsareemergingasgreatpotentialtoolstoalleviatethisgrowingburden.

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