简介：GAP发布第二季度财报显示,该集团的第二季度净利润为11亿美元,低于去年同期的11.2亿美元,下降了约2%,大大超过了之前下跌0.3%的分析师预测。而从近日公布的数据显示,其7月销售额继续下跌,主要原因是门店客流量下降,分析师称这种情况在今年内都可能不会有太大改善。这已经是GAP同店销售额连续16个月下跌,这个来自美国的快时尚巨头怎么了？

简介：Phononicmaterialswithspecificband-gapcharacteristicsatdesiredfrequencyrangesareingreatdemandforvibrationandnoiseisolation,elasticwavefilters,andacousticdevices.Theattenuationcoefficientcurvedepictsboththefrequencyrangeofbandgapandtheattenuationofelasticwave,wherethefrequencyrangescorrespondingtothenone-zeroattenuationcoefficientsarebandgaps.Therefore,theband-gapcharacteristicscanbeachievedthroughmaximizingtheattenuationcoefficientatthecorrespondingfrequencyorwithinthecorrespondingfrequencyrange.Becausetheattenuationcoefficientcurveisnotsmoothinthefrequencydomain,thegradient-basedoptimizationmethodscannotbedirectlyusedinthedesignoptimizationofphononicband-gapmaterialstoachievethemaximumattenuationwithinthedesiredfrequencyrange.Toovercomethisdifficulty,theobjectiveofmaximizingtheattenuationcoefficientistransformedintomaximizingitsCosine,andinthisway,theobjectivefunctionissmoothedandbecomesdifferentiable.Basedonthisobjectivefunction,anovelgradient-basedoptimizationapproachisproposedtoopenthebandgapataprescribedfrequencyrangeandtofurthermaximizetheattenuationefficiencyoftheelasticwaveataspecificfrequencyorwithinaprescribedfrequencyrange.Numericalresultsdemonstratetheeffectivenessoftheproposedgradient-basedoptimizationmethodforenhancingthewaveattenuationproperties.

简介：现在的学习被设计在N1E-115房间和内在的机制在神经突生长上调查橡黄素的角色。橡黄素被显微镜学，长矛(tm)营地384工具包，和西方的污点分析的使用在vitro在N1E-115房间在神经突，神经突长度，细胞内部的营地内容，和Gap-43表示的房间数字上为它的效果评估分别地。我们的结果证明橡黄素能以一种集中依赖者方式增加神经突长度，但是没在房间的数字上有效果。橡黄素显著地在一个时间依赖者和集中依赖者举止增加了细胞的营地的表示。Gap-43表示以一种时间依赖者方式是起来调整的。在结论，橡黄素能通过增加细胞内部的营地水平和Gap-43表示支持神经突生长。

简介：Wedemonstrateaphotonicbandgap(PBG)fromone-dimensional(1D)periodicstructurescreatedbyadouble-layerunitcellwithanairlayerandananisotropicnonmagneticleft-handedmetamaterial(LHM)layerwhosepermittivityelementsarepartiallynegative.TherequirementsimposedonthematerialsandstructurestorealizeaPBGarederivedwhenthefrequencyisaboveorbelowthecutofffrequency,andthetransmissionpropertiesofthePBGarediscussedbyutilizing4×4transfer-matrixmethodwithdispersivesemiconductormetamaterial.

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简介：论述实施良好农业操作规范（GAP）对果蔬保鲜与加工业的意义及影响,阐明了实施GAP对促进我国果蔬保鲜与加工业发展的作用,并指明了实施GAP的具体思路。

简介：Gap集团——这家美国最大的服装零售商,如今正在面临严峻的挑战。主牌Gap正在成为整个Gap集团＂拖后腿＂的品牌。其全球市场财报显示,2015年一季度,Gap收入较上年同期下跌3.1%;净利润下跌8.1%;并宣布关闭在北美的175家店铺（占店铺总数的四分之一）。

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简介：春天伴随着和煦的阳光来临，风依旧忽而寒冷呼啸，忽而温柔地体贴着人们，走在校园里熟悉的道路，从BootsLibrary不知不觉，我的大学到了尾声。还有一个月零两周。

简介：Anewmethodusingleadcoatedglassfibertoproducecontinuouswireforbatterygridofelectricvehicles(EVs)andhybridelectricvehicles(HEVs)wasintroduced.Underequalflow,boththemaximumandminimumtheoreticalvalueofgapsizewerestudiedandestimationequationwasestablished.Theexperimentalresultsshowthatthegapsizeisakeyparameterforthecontinuouscoatingextrusionprocess.Itsmaximumvalue(Hmax)is0.24mmandtheminimumone(Hmin)is0.12mm.Atagapsizeof0.18mm,themaximumofmetalextrusionperunitoftimeandoptimalcoatingspeedcouldbeobtained.

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简介：Inatwocomponentfermionsystem,themismatchedFermisurfacespreventtheformationofCooperpairsbetweenthetwospicesneartheiraverageFermisurface.Ourpreviouswork[1]hasshownthattheangledependenceofthenons-wavepairinggapcanreducetheeffectofthedifferenceμbetweentheFermisurfacesoftwospicesinasymmetricnuclearmatter.Ontheotherhand,intheheavyfermionsuperconductors,suchasCeCoIn5pressuredCeRhIn5NpPd5Al2andTl-basedcuprates,mayhaveacoupleofcommonfeatures,forexample,thed-wavepairingandastrongparamagneticeffect(thedifferenceofthetwoFermisurfacesμ).Therefore,theangledependenceofthepairinggapmayhavesignificantinfluenceinthesesystems.

简介：AmodelhasbeendevelopedtodescribethemicrostructureevolutionintheatomizeddropletsofCu-Fealloyduringcoolingthroughthemetastablemiscibilitygap.CalculationshavebeenperformedforCu85Fe15alloytoinvestigatetheprocessofliquid-liquidphasetransformation.Thenumericalresultsindicatethattheminorityphasedropletsarenucleatedinatemperatureregionaroundthepeakofthesupersaturation.TheaverageradiusoftheFe-richdropletsdecreasesandthenumberdensityoftheminorityphasedropletsincreaseswithdecreasingtheatomizeddropletsize.Thesimulatedresultswerecomparedwiththeexperimentalones.Thekineticprocessoftheliquid-liquidphasetransformationwasdiscussedindetail.

简介：采用基于密度泛函理论（DensityFunctionalTheory）的第一性原理计算了GaP（001）面吸附硫原子后的表面结构和电子结构。计算表明,在Ga和P截止的GaP（001）-（1×2）表面吸附两个硫原子后,会形成（1×1）的重构表面,硫原子吸附在桥位置（HB）。电子结构的计算显示,吸附硫原子后,GaP带隙中的表面态密度（DensityofStates）明显减少了,这表明在GaP（001）表面吸附硫原子后达到了钝化的效果。

简介：木质的种类的差异和新生在二生态的壁龛viz被调查。在旧生长的季节联盟者的差距和未经触动的植被弄干Shorea柔韧一(Gaertn。f.)在尼泊尔的森林。我们也联系了差异措施和新生属性的变化到差距特征。树和灌木部件的茎密度比在未经触动的植被在差距是更高的。S的幼苗密度。柔韧andTerminaliaalata(B。Heyne前Roth)比在未经触动的植被在差距是更高的，当矛盾的结果为T被观察时。bellirica(Gaertn。前Roxb)并且Syzigium枯茗i(L。Skeels)以幼苗密度。在幼苗层的Simpson索引，平均索引，和种类个人比率的补充比未经触动的植被在差距是更低的。差距尺寸能解释种类丰富和种类建立率。在不同的年里到多重树下降创造的差距有S的更高的幼苗密度。柔韧a比单个或多重的树创造的差距掉在一样的年里。在结论，差距由增加柳安森林的幼苗密度，和帮助新生维持种类差异。除了差距尺寸，另外的差距属性也影响种类差异和新生。

简介：InGaAsP/InPmultiplequantumwellswithquantumwellintermixinghavebeenpreparedbyimpurity-freevacancydisordering.Theluminescentcharacteristicswereinvestigatedusingphotoluminescenceandphotoreflectance,fromwhichthebandgapblueshiftwasobserved.Si3N4,SiO2andSOGwereusedforthedielectriclayertoenhanceintermixingfromtheoutdiffusionofgroupIIIatoms.Allsampleswereannealedbyrapidthermalannealing.Theresultsindicatethatthebandgapblueshiftvarieswiththedielectriclayersandtheannealingtemperature.TheSiO2cappingwithanInGaAscladdinglayerwassuccessfullyusedtoinducelargerbandtuningeffectintheInGaAsP/InPMQWsthantheSi3N4cappingwithanInGaAscladdinglayer.Ontheotherhand,sampleswiththeSi3N4-InPcaplayercombinationalsoshowlargerenergyshiftsthanthatwithSiO2-InPcaplayercombination.

简介：Higher-bandself-trappingandoscillation(rotation)ofnonlinearquadruplebeamsintwo-dimensional(2D)squarephotoniclatticesarenumericallydemonstrated.Underappropriateconditionsofnonlinearity,aquadruple-likebeamcanself-trapintolocalizedmodesthatresideinthesecondBraggreflectiongapthroughsingle-siteexcitation.Bychangingtheinitialorientationoftheincidentquadruplebeamrelatedtothelattices,periodicoscillationsofthelocalizedquadruplemodemaybeobtained.Thelocalizedquadruplestatebecomesarotatingdoublychargedopticalvortex(DCV)duringrotationandshouldundergocharge-flippingwhentherotatingdirectionisreversed.

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