简介：引子无足迹杀人事件2010年2月17日，接连下了三天的大雪终于停了，大地被积雪所覆盖，看起来像棉花般轻柔、蓬松。月亮在天空中放出冷冷的寒光，照射在这雪白的大地上更显阴沉。四周静悄悄的，在这农村的夜晚，唯有一对父子顶着寒风踏雪而行。

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简介：Birefringenceattractsincreasingattentionduetoitsextensiveapplicationsintheimagingspectrometer,laserdevicesandopticalcomponents.Stimulatedbythediscoveryofthegiantbirefringence(GBF)inLaOBiS_2andAFBiS2,weexploreitsoriginbycheckingthreecompoundswithandwithouttheBiS_2layer:Bi_2OS_2(i.e.,BiOBiS_2),Bi_2O_2SandLaOAlS_2.ItisdemonstratedthatGBFappearsonlyinthecompoundswiththeBiS_2layerandisfurthermoreconfirmedinMOBiS_2(M=AI,Ga,InandSc)compounds.Theresultisusefulfordiscovering/developingnew-typebirefringentcrystalorevenmultifunctionalmaterials.

简介：AnewlayeredCu-basedoxychalcogenideBa3Fe2O5Cu2S2hasbeensynthesizedanditsmagneticandelectronicpropertieswererevealed.Ba3Fe2O5Cu2S2isbuiltupbyalternativelystacking[Cu2S2]2-layersandironperovskiteoxide[（FeO2）（BaO）（FeO2）]2-layersalongthecaxisthatareseparatedbybariumionswithFe3+fivefoldcoordinatedbyasquare-pyramidalarrangementofoxygen.Fromthebondvalencearguments,weinferredthatinlayeredCuCh-based（Ch=S,Se,Te）compoundsthe+3cationinperovskiteoxidesheetprefersasquarepyramidalsite,whilethelowervalencecationprefersthesquareplanarsites.Thestudiesonsusceptibility,transport,andopticalreflectivityindicatethatBa3Fe2O5Cu2S2isanantiferromagneticsemiconductorwithaNe′eltemperatureof121Kandanopticalbandgapof1.03eV.Themeasurementofheatcapacityfrom10Ktoroomtemperatureshowsnoanomalyat121K.TheDebyetemperatureisdeterminedtobe113K.TheoreticalcalculationsindicatethattheconductionbandminimumispredominantlycontributedbyO2pand3dstatesofFeionsthatantiferromagneticallyarrangedinFeO2layers.TheFe3dstatesarelocatedatlowerenergyandresultinanarrowbandgapincomparisonwiththatoftheisostructuralSr3Sc2O5Cu2S2.

简介：GbE2c以太网交换机是HP公司专门为C系列刀片服务器研发的一款模块化可管理的交换机，完成刀片服务器之间内部互联和外部通信的任务。如何实现二层交换功能和三层路由功能是刀片服务器解决数据通信和转发的首要问题。通过对交换机的这些功能的分析来帮助使用者了解和使用GbE2c以太网交换机模块。

简介：在这份报纸，为在管的超声的内部流动的调查的马赫4超声的风隧道的轮廓第一被描述。第二，2和马赫4伪吃惊在方形的管挥动的马赫的地点，结构和特征被颜色schlieren相片和管墙压力调查变化大小。最后，墙砍有马赫4伪吃惊的方形的管的墙挥动的方面，顶和底部上的压力分布是由shear的调查品质上压力敏感的液体水晶可视化方法。在第一震动下面的方面墙边界层分离区域在最高的墙附近是狭窄的，当在第一震动下面的方面墙边界层分离区域在底部墙附近是很宽的时。关键词超声的内部流动-伪吃惊波浪-流动可视化-砍压力敏感的液体水晶CLC数字O357.4+2

简介：在大型和重要广播电视。发射台郜离不开多工天线变换系统．交换闸本身的技术参数和。质量性能主要决定于生产厂家技术能力，一般都能达到部标要求。把停播率降到最低水平主要与天线控制系统、发射机系统和配电系统等设备的可靠性和稳定性有直接关系．

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简介：摘要：通过对市本级单位实施数据整合汇聚，提高目录-资源挂载量，完善市级政务大数据资源池；推动政府内部数据资源供需关系，加强省级共享数据的申请和调用量，集中为高频服务需求、高频服务场景提供共享数据[1]；用功能软件系统服务和数据治理服务，形成完善的数据治理体系，更好地把握政府部门和事业单位对数据共享利用的需求和动态，提升市级公共数据的资产化水平和管理能力。

简介：摘要：通过对市本级单位实施数据整合汇聚，提高目录-资源挂载量，完善市级政务大数据资源池；推动政府内部数据资源供需关系，加强省级共享数据的申请和调用量，集中为高频服务需求、高频服务场景提供共享数据[1]；用功能软件系统服务和数据治理服务，形成完善的数据治理体系，更好地把握政府部门和事业单位对数据共享利用的需求和动态，提升市级公共数据的资产化水平和管理能力。

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简介：1斤酥油换12批青棵11张牛皮换7-10批青棵11匹公马换8-9包青棵,1头公牛换14-15克青棵11只羊换青棵3-5克,1克酥油换青棵3-4克

简介：换入资产入账价值=换出资产账面价值-（补价/换出资产公允价值）×换出资产账面价值+应支付的税费,应确认的收益=补价-（补价/换出资产公允价值）×换出资产账面价值,我国修订后的准则对非货币性交易的会计处理是这样规定的

简介：Frequency-doubledantireflectioncoatingssimultaneouslyeffectiveat1064nmand532nmweredepositedonthelithiumtriborate(LiB3O5orLBO)crystalsusingtheelectronbeamevaporationmethod.Comparingwiththesamplewithoutbufferlayer,itisfoundthattheadhesionofthesamplewithbufferlayerofSiO2betweencoatingandLBOsubstrateisimprovedsignificantlyfrom137.4mNtogreaterthan200mN.Andthelaser-induceddamagethresholdisincreasedby20%from15.1J/cm2to18.6J/cm2.ThestrengtheningmechanismofadhesionofthebufferlayerofSiO2isdiscussedbyconsideringfullplasticindentationandsheartheory.

简介：ＥｐｉｔａｘｉａｌＧｒｏｗｔｈｏｆＹＢＣＯＴｈｉｎＦｉｌｍｓｏｎＬａＡｌＯ＿３ＳｕｂｓｔｒａｔｅｗｉｔｈＣｅＯ＿２ＢｕｆｆｅｒＬａｙｅｒＭａＰｉｎｇ，ＹａｎｇＪｉａｎ，ＧｕＨｏｎｇｗｅｉ，ＣｈｅｎＬａｎｆｅｎｇａｎｄＣｈａｎｇＳｈｉａｎ（马平）（杨坚...

简介：Two-dimensionalatomic-layeredmaterialisarecentresearchfocus,andsinglelayerTa2O5usedasgatedielectricinfield-effecttransistorsisobtainedviaassembliesofTa2O5nanosheets.However,theelectricalperformanceisseriouslyaffectedbyelectronicdefectsexistinginTa2O5.Therefore,spectroscopicellipsometryisusedtocalculatethetransitionenergiesandcorrespondingprobabilitiesfortwodifferentchargedoxygenvacancies,whoseexistenceisrevealedbyx-rayphotoelectronspectroscopyanalysis.SpectroscopicellipsometryfittingalsocalculatesthethicknessofsinglelayerTa2O5,exhibitinggoodagreementwithatomicforcemicroscopymeasurement.NondestructiveandnoncontactspectroscopicellipsometryisappropriatefordetectingtheelectricaldefectslevelofsinglelayerTa2O5.

简介：Anewcompoundbasedonpolyoxovanadate[{Ni(en)2}2Sb8V14O42]·5.5H2O(en=ethylenediamine)(1)wassynthesisedhydrothermallyasblackrhombuscrystals.Compound1crystallizedinthemonoclinicsystemwithspacegroupP21/n,Z=4,a=1.46953(9)nm,b=1.28623(8)nm,c=1.76008(11)nm,β=105.7230(10)°.Intheasymmetricunit,cluster{Sb8V14O42}canbeconsideredasanSbderivativeofthe{V18O42}unit.Each{Sb8V14O42}clusterasabuildingblockinterconnectedtofourotherneighboringunitsby{Ni(en)2}bridginggroupswhicharelinkedthroughtheterminaloxygenatomsofthepolyoxoanions,formingatwodimensionalnetwork.

简介：Inthepresentpaperitwillbeshownthat,bytakingthereferenceframemovingwiththevelocityoffluidattheinterlaceoftwosteadyparallelstreams,thelaminarboundarylayerflowinthetwofluidscanbedecoupledintotwoflows.Theseareexactlythesameasthelaminarboundarylayerflowsalongaflatplate.Andthat,byusingtheexistingexactsolutionofthelaminarboundarylayerequationfortheboundarylayerflowalongaflatplateandappropriateboundaryconditions.Anexactsolutionofthelaminarboundarylayerequationforthelaminarboundarylayerbetweentwoparallelstreamswithdifferentdensities,viscocitiesandvelocitiesisgivenelegantly.ForthecasesconsideredbyLock,theresultsobtainedbythepresentmethodarecomparedwithLock’snumericalcalculationsindetail.

简介：ThisworkismainlytostudytheeffectofheavyionirradiationonthedamageofsinglelayerMoS2.ThenumberoflayersofMoS2preparedbyCVD(chemicalvapordeposition)methodwasdeterminedbyopticalmicroscopyandRamanspectroscopy.ThemonolayerMoS2preparedbyCVDunderhighenergy209BiionirradiationwasanalyzedbyRamananalysisandAFMobservation.AndtheresultsarecomparedandanalyzedbeforeandafterthebeamirradiationofsinglelayerMoS2preparedbymechanicalstrippingmethod.

简介：Magneticspectrumoftheelectromagneticioncyclotronwavesintheterrestrialplasmadepletionlayer（PDL）aresometimesobservedtohaveaBIF（bifurcated）signature,whereadiminutionaround0.5ΩpwithΩptheprotongyrofrequency,occursbetweentwoactivitypeaksinthespectrum.Byone-dimensionalhybridsimulations,theeffectofrelativedriftvelocitiesbetweenprotonsandHe2+onthemagneticspectralsignaturesinthePDLisstudied.Theresultsshowthattherelativedriftvelocityenhancesthedevelopmentofprotoncyclotronwavesanddeclinesthedevelopmentofheliumcyclotronwaves.Theprotoncyclotronwavesarefirstlyexcited,andfollowedbytheexcitationofheliumcyclotronwavesduetotheincreaseintherelativedriftvelocity.Moreover,theboundarybetweentwoactivitypeaksgetsobscure.