简介：Inourpreviouswork,aplasmaapproachforsingleattosecondpulse(AP)generationwasproposed.Afew-cyclerelativisticcircularlypolarizedlaserpulsewillinduceasingledrasticoscillationofplasmaboundary,fromwhichhigh-orderharmonicsandfurthermoreanultra-intensesingleAPcanbegeneratednaturallyafteritisreflected.Analyticalmodelandsimulationsbothdemonstratethattheprocessismostlyefficientasthepulsedurationisclosetotheplasmarespondingtime.Theeffectsofplasmadensityrampareanalyzedhere,suggestingthattheproposalisstillquiteefficientwithappropriatedensitygradientintheramp.Atlast,acombinedapproachisemployedtoobtainsingleAPwith30fsincidentlaser.Therelativelylarge-durationpulseisfirstlyshortenedbyadensitydroppingthinfoil,andthenreflectedfromanoverdenseplasmatarget.One-dimensionalsimulationshowsthata600assinglelightpulseisgeneratedwithpeakintensityof3×1020W/cm2.

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简介：为三聚会的量秘密分享一把私人钥匙的一个计划与单个光子被介绍。代理人鲍勃首先与二个偏导的基地准备单个光子的一个序列然后送他们给与大小检查传播的安全并且由重排生产一些圈套光子的老板艾莉斯一些样品光子的订单。Aliceencodes她有光子上的二单一的操作的位然后把他们送到另外的代理人。这个计划的安全在修改Bennet臂章等价于那1984量钥匙分发协议。而且，每个光子能带一位私人钥匙和内在的效率因为当在钥匙中的位的数字是时，qubits和全部的效率两个都百分之百接近最大的价值大。

简介：Inthispaper,aLotka-Volterracooperationsystemwithsinglefeedbackcontrolisproposedandstudied.Weinvestigatethelocalstabilityandtheglobalstabilityofthesystem.Ourstudyshowsthatwithsuitablerestrictiononthecoefficientsofthefeedbackcontrolvariable,thesystemcanstillremaingloballystableorbecomeextinct,whichshowsthatthefeedbackcontrolvariableplaysaveryimportantroleinthedynamicsbehaviorsofthesystem.

简介：AbstractThecarbon-carbonbondbetweentwonearest-neighboringatomsismodeledasabeamandthesingle-walledcarbonnanotubesaretreatedasthespaceframestructuresinordertoanalyzethemechanicalpropertiesofcarbonnanotubes.BasedonthetheoryofTersoffBrennerforcefield,theenergyrelationshipsbetweenthecarbon-carbonbondandthebeammodelareobtained,andthestiffnessparametersofthebeamaredetermined.Byapplyingthepresentmodel,theYoung'smoduliofthesingle-walledcarbonnanotubeswithdifferenttubediametersaredetermined.Andthepresentresultsarecomparedwithavailabledata.

简介：ＤｅｖｅｌｏｐｍｅｎｔｏｆＨＶＰｏｗｅｒＳｕｐｐｌｙｆｏｒＥｘｔｒａｃｔｉｏｎｏｆｉｏｎＳｏｕｒｃｅａｎｄＳｉｎｇｌｅＬｅｎｓ￥ＸｕＺｈｅｎｇｊｉａａｎｄＺｕＫａｉｌｉｎｇＴｈｅ５０ｋＶｄｉｒｅｃｔｈｉｇｈｖｏｌｔａｇｅｒｅｇｕｌａｔｅｄｐｏｗｅｒｓ...

简介：Tappingmodeatomicforcemicroscopehasbeenappliedtoobservesingle-chainPMMAparticleswhichwerestoredforsixmonthsatroomtemperatureaftersprayedfromverydilutesolutionsingoodsolvents,good/poormixedsolvents,andathetasolvent.Monodis-persePMMAstandardsofmolecularweightsrangingfrom7.90×10~4to1.3×10~6wereusedtoinvestigatetheeffectofmolecularweightohthesizeofthesingle-chainPMMAparticles.Thesesingle-chainparticlesshowedclosetosphericalshapes.Themorphologyofsingle-chainPMMAparticlesofagivenmolecularweightwasfoundtobeidenticalinspiteofdifferentsolventsusedforsolutionspraying.Molecularweighdependenceoftheparticledimensionwasalsofound.Thediametersofsingle-chainPMMAparticlesaftercorrectionoftlp-geometryeffectwerecomparedtothevaluesestimatedfrommolecularweightanddensity.

简介：TheshiftmechanismofBraggwavelengthwithstressvariationforafibergratingisinvestigatedindetail.Theinfluenceofstrainchangeonreflectionandbandpassistheoreticallyanalyzed.Byapplyingstress,thedynamicsingle/dual-channelfilterwithtunablefiberBragggratingsisachieved.

简介：ChenYifan,whoisresolvedtobesingleforlife,hasneverexpectedthatat45,shecanrealizeherdreamofproducingababyforherselfwithouthavingtogetmarried—andlegally.ThewomanisquitesuccessfulinhercareerasmanagerofaprivatecompanyinChangchunCity,JilinProvince,northeastChina.Herpersonallife,however,isnot.Shefellinlovewithaclassmatebackintheearly1980s,andwasheart-brokenwhentheyoungmanlefther.Sincethen,thewomanhasfoundthatnomaninthisworldisgoodenoughtobeherhusband.Thoughsingle,shewantstohaveachildofherown.'I’llbeburningwithenvywheneverIseea

简介：BasedontheEigenandCrow-Kimuramodelswithasingle-peakfitnesslandscape,weproposethefitnessvaluesofallsequencetypestobeGaussiandistributedrandomvariablestoincorporatetheeffectsofthefluctuationsofthefitnesslandscapes(noiseofenvironments)andinvestigatetheconcentrationdistributionanderrorthresholdofquasispeciesbyperforminganensembleaveragewithinthistheoreticalframework.Wefindthatasmallfluctuationofthefitnesslandscapecausesonlyaslightchangeintheconcentrationdistributionanderrorthreshold,whichimpliesthattheerrorthresholdisstableagainstsmallperturbations.However,forasizablefluctuation,quitedifferentfromthepreviousdeterministicmodels,ourstatisticalresultsshowthatthetransitionfromquasi-speciestoerrorcatastropheisnotsosharp,indicatingthattheerrorthresholdislocatedwithinacertainrangeandhasashifttowardalargervalue.Ourresultsarequalitativelyinagreementwiththeexperimentaldataandprovideanewimplicationforantiviralstrategies.

简介：Tamiflu(Oseltamivirphosphate)seemstobeadouble-edgedswordtosomeinAsia.Whileitiscountedonagainstinfluenzaandafearedavianinfluenzapandemic[1],thedrugisalsoassociatedwithsideeffects,rangingfromneu-ropsychiatric,gastrointestinal,tohyperthenniaandskinproblems.AccordingtoadocumentfromUSFoodandDrugAdministrationin2005[2],1184casesofsideeffectshavebeenreported.Interestingly69outofthe75pediatriccaseswerefromJapan,includingtwoteensuicides.Thesituationseemedtohavemadeagloomierturnrecently.ItwasreportedinFebruary,2007thattwoJapaneseteenagersjumpedfromapartmentbuildingsaftertakingTamifluanddied,bringingthetotalnumberofdeathsaftertakingTamiftuinJapanto54[3,4].Althoughnodirectcausalrelationshiphadbeenes-tablishedyet,theJapanHealthMinistrywarneddoctorsaboutgivingthedrugtoteenagers.Incomparison,relativelyfewcasesofseveresideeffectswerereportedfromAmericaandEuropeancountries[5].Whatiswrongwiththispicture?Ithasconcernedandbewilderedmany.Thepagesinthisissue[6]offeronefascinatinghypothesisthattriestoexplainthemysteryusinganintegratedapproachcombiningstructuralbioinformaticanalysisandenzymeassays.

简介：Anovelburningtechniqueformakingasemiconductingsingle-walledcarbonnanotubes(SWNTs)transistorassembledbythedielectrophoreticforcewassuggested.Thefabricationprocessconsistedoftwosteps.First,toalignandattachabundleofSWNTsbetweenthesourceanddrain,thealternating(AC)voltagewasappliedtotheelectrodes.WhenabundleofSWNTswasconnectedbetweentwoelectrodes,someofmetallicnanotubesandsemi-conducingnanotubesexistedtogether.ThesecondstepistoburnthemetallicSWNTSbyapplyingthevoltagebetweentwoelectrodes.Withincreasingthevoltage,morecurrentflowedthroughthemetallicSWNTs,thus,themetallicSWNTsburntearlierthanthesemiconductingone.Thistechniqueenablestoobtainonlysemi-conductingSWNTsconnectioninthetransistor.ThroughtheI—Vcharacteristicgraph,themomentofmetallicSWNTsburningandthecharacteristicofsemi-conducingnanotubeswereverified.

简介：Bipolarsingle-valuedneutrosophicmodelsarethegeneralizationofbipolarfuzzymodels.Wefirstintroducetheconceptofbipolarsingle-valuedneutrosophiccompetitiongraph-s.Wethen,discusssomeimportantpropositionsrelatedtobipolarsingle-valuedneutrosophiccompetitiongraphs.Wedefinebipolarsingle-valuedneutrosophiceconomiccompetitiongraphsandm-stepbipolarsingle-valuedneutrosophiceconomiccompetitiongraphs.Further,wede-scribeapplicationsofbipolarsingle-valuedneutrosophiccompetitiongraphsinorganizationaldesignationsandbrandscompetition.Finally,wepresentourimprovedmethodsbyalgorithms.

简介：TheflowthroughasinglefractureisnumericallystudiedbymeansoftheFluentSoftware.Theresultsshowthattheroughnessofthefracturesignificantlyaffectsthehydraulicconductivityinthefractureascomparedwiththecubiclawmodelwidelyusedtodescribetheflowbetweentwosmoothparallelplates.Anewmodelisproposedinthispaper,thenon-symmetricsinusoidalfracturemodel,tosimulatetheflowinarealfracture.Thismodelinvolvestwosinusoidal-varyingwallswithdifferentphasestoreplacetheflatplanesinthecubiclawmodel.Therelationshipsbetweentheeffectivehydraulicaperturesandthephaseretardationfordifferentrelativeamplitudesandwavelengthsarenumericallyinvestigated.Asimpleexpressionoftheeffectivehydraulicapertureofthefractureisobtained,togetherwiththelawoftheeffectivehydraulicapertureagainsttheamplitude,thephaseretardationandthewavelengthoftwosinusoidal-varyingwalls.

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简介：Fluidcharacteristicsofarotarywingheatmeterwithsingle-channelwerestudiedthroughthereticalanalysis,numericalsimulationandexperiments.Theobtainedresultsshowthatthenumberofvanescanobviouslyinfluencetheheatmeter,butthewatertemperatureseldominfluencethemeter,andtheoptimalnumberofvaneis6-8.

简介：ＩｎｔｒｏｄｕｃｔｉｏｎＩｎ１９７３，Ｗｉｎｆｒｅｆｉｒｓｔｄｉｓｃｏｖｅｒｅｄｔｈｅｔｈｒｅ＿ｄｉｍｅｎｓｉｏｎａｌｓｃｒｏｌｗａｖｅｉｎｔｈｅＢｅｌｏｕｓｏｖ＿Ｚｈａｂｏｔｉｎｓｋｙｒｅａｇｅｎｔ．Ｉｎ１９８３，Ｗｅｌｓｈｓｈｏｗｅｄｔｈｅｅｘｉ...

简介：Anewtestmethodforsingleinteriorrightangleinacornercubeprismispresented.Somekeypointsandparametersareanalyzedandderived.Theadvantageofthismethodisconcludedbycomparingwithsomecurrentconventionalmethods.

简介：作为在microsurgeries的最挑战性的过程，Vasoepididymostomy(VE)经常与双armed被执行二缝术的技术。在这研究，我们在人上评估了武装单人赛的二缝术的VE的功效和安全并且学习了能可能影响明显率的因素。从2012年7月到2013年7月，我们与连续主要epididymal阻塞考察了81个病人由一位单身的外科医生，经历了武装单人赛的二缝术的纵的摄取microsurgicalVEKaihong(KH)。同时，我们分析了可能与明显有关评价的七个因素。与武装单人赛的技术，81个人的一个总数经历了microsurgicalVE。62个病人上的数据完全被记录。19个病人被失去到后续。吝啬的年龄是31岁。吝啬的后续时间是8.8(2-17)月。明显率是66.1%(41/62)。自然怀孕率是34.1%(14/41)。全面怀孕率是22.6%(14/62)。没有严重外科的复杂并发症被注意。与逻辑回归测试分析，与更高的明显率有关有二个因素：吻合地点(P=0.035)并且能动精子在epididymal液体发现了(P=0.006)。在epididymal液体发现的能动精子与更高的明显率被联系(或=11.80，95%CI=1.79，77.65)。武装单人赛的二缝术的纵的VE技术为microsurgical实践是可行的。明显和怀孕率比得上双手臂的技术。在epididymal液体发现的吻合地点和能动精子是与更高的明显有关的大多数二个重要因素。