简介：Thereisalargegapbetweenthenumberofmembraneprotein(MP)sequencesandthatoftheirdecoded3Dstructures,especiallyhigh-resolutionstructures,duetodifficultiesincrystalpreparationofMPs.However,detailedknowledgeofthe3DstructureisrequiredforthefundamentalunderstandingofthefunctionofanMPandtheinteractionsbetweentheproteinanditsinhibitorsoractivators.Inthispaper,somecomputationalapproachesthathavebeenusedtopredictMPstructuresarediscussedandcompared.

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简介：WhenthePoissonmatrixofPoissonsystemisnon-constant,classicalsymplecticmethods,suchassymplecticRunge-Kuttamethod,generatingfunctionmethod,cannotpreservethePoissonstructure.Thenon-constantPoissonstructurewastransformedintothesymplecticstructurebythenonlineartransform.ArbitraryordersymplecticmethodwasappliedtothetransformedPoissonsystem.TheEulerequationofthefreerigidbodyproblemwastransformedintothesymplecticstructureandcomputedbythemid-pointscheme.Numericalresultsshowtheeffectivenessofthenonlineartransform.

简介：蛋白质褶层结构是比它的氨基酸顺序保存并且仔细与生物功能联系了推测蛋白质结构的类似是在结构的生物学的一个基本问题并且在蛋白质褶层分类，褶层功能推理，和蛋白质结构起一个关键作用的更多预言。大进步为认为结构的类似被建议了在这块地和许多方法里在最近的年里被取得了，包括为蛋白质结构比较，从数据库的蛋白质结构的检索，和ligand绑定的方法地点比较。大多数那些方法能在万维网上是可得到的，但是所有方法的评估仍然是一个难问题。这篇论文为结构类似总结一些流行方法和最近的方法，包括结构排列，蛋白质结构检索，和ligand绑定地点排列。

简介：Thechemicalcomposition,fibercharacteristics,crystallinestructure,mechanicalpropertiesandthermalbehaviorofthefivespeciesofbamboo(Phyllostachyseduliscv.Pachyloe,Bambusatootisk,Arundinaiaamabilis,B.vulgariscv.Vittata,andDendrocalamusaffinis)werestudiedwithIR,X-ray,DSCandchemicalanalyses.Theresultsindicatedthatthebenzene-ethanolextractivecontentofbamboowashigherthanthatofwood,thecontentofligninandthecontentofpentosanwere19.1%-25.3%and14.9%-...

简介：Thereisawellestablishedmultifractaltheoryforself-similarmeasuresgeneratedbynon-overlappingcontractivesimilutudes.Ourreporthereconcernsthosewithoverlaps.Inparticularwerestrictourattentiontotheimportantclassesofself-similarmeasuresthathavematrixrepresentations.ThedimensionspectraandtheLq-spectraareanalyzedthroughtheproductofmatrices.Thereareabnormalbehaviorsonthemultifrac-talstructureandtheywillbediscussedindetail.

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简介：Tetradecyldimethylbenzylammoniumsalt(TDMBA)cationswereintercalatedintosodiummontmorillonite(Na-MMT)byanionexchangereaction.TheresultingTDMBA-MMTwascharacterizedbyFourier-transforminfraredspectroscopy(FTIR),thermogravimetricanalysis(TGA),andX-raydiffraction(XRD).Moreover,theantibacterialactivityandwater-resistanceofTDMBA-MMTwereinvestigated.TheresultsshowthatTDMBAcationsareintercalatedintotheNa-MMT.TheonsettemperatureofdecompositionofTDMBAcationsinTDMBA-MMTisraisedabout60℃higherthanthatoftetradecyldimethylbenzylammoniumchloride(TDMBACl),andthed_((001))spacingenlargedfrom1.23nmto2.10nm.0.1mg/mLTDMBA-MMTisfullyenoughtokillalltheStaphylococciaureus(S.aureus)andmorethan99.99%oftheEscherichiacoli(E.coli)inasamplesolutionwithin6.0htouch,andtheTDMBA-MMTalsoshowslongactingproperties.

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简介：1.TheState:GeneralConsiderationsScholarshavelongbeinginterestedinthestateandtherunningofit.Amongthem,therewerephilosophers,historians,sociologistsandanthropologists.WemaygoasfarbackastoConfuciusandLaoTze,ortotheGreekphilosophersPlatoandAristotle1,andifwewanttostayclosertoourtime,wecanmentiontheItalianpoliticalscientistMachiavelli,whowroteinthe16thcenturyIlPrincipe(ThePrince),

简介：Triangularsystemsplayafundamentalroleinmatrixcomputations.Ithasbecomecommonplacethattriangularsystemsaresolvedtobemoreaccurateeveniftheyareill-conditioned.Inthispaper,wedefinestructuredconditionnumberandgivestructured(forward)perturbationbound.Inaddition,wederivetherepresentationofoptimalstructuredbackwardperturbationbound.

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简介：TheenvironmentofthepostalindustryinChinahasexperiencedtremendouschangesinthepastfewyears.TheenvironmentalchangeshavesomeeffectsontheelementsthatdecidetheservicestructureofChinaPost.Insuchcontext,thecurrentservicestructureofChinaPostneedssomeimprovementstoadaptitselftothechangingenvironment.AimingattheoptimizationoftheservicestructureofChinaPost,thispaperreviewsthelawofitsdevelopmentandmakesananalysisofitscurrentcharacteristicsandtheexistingproblems.

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简介：ZnFe_(3-x)O_4铁酸盐的通道结构被高分辨率电子显微镜学(HREM)证实，为alpha-Fe_2O_3的非欧姆的I-V曲线和动力学等温的阶段转变。Zn_(0.41)Fe_(2.59)O_4/alpha-Fe_2O_3two-phasepolycrystalline有巨大的通道magnetorsistance(TMR)主要由通道结构引起了。TheZn_(0.41)Fe_(2.59)O_4谷物被绝缘的alpha-Fe_2O_3分开薄层边界。nanoslructure的Thepattern被HREM验证。

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