简介：TheeffectsofSO2,SO3ondenovosynthesisofpolychlorinateddibenzo-p-dioxins(PCDDs)anddibenzofurans(PCDFs)werestudiedusingmodelflyashesincorporatingcopperoxideandactivatedcarbon.ItwasfoundthattheinhibitiveeffectofSO2onPCDD/FsformationissimilartothatofSO3.Toinvestigatetheinhibitionmechanism,CuSO4formationsfrombothCuOandCuCl2wereexamined.TheabilityofSO3toconvertCuCl2andCuOonasilicasupportintosulfateismuchstrongerthanthatofSO2.However,replacingsilicabyactivatedcarbonleadstoamuchhighconversionofCuCl2toCuSO4inthepresenceofSO2.ThepromotionbyactivatedcarbonisexplainedbythereductionofCuCl2toCu2Cl2andtheeventualconversionofCu2Cl2intoCuSO4isthemaininhibitionmechanismofSO2ondenovosynthesisofPCDD/Fs.

简介：ThefirststarsintheearlyUniversewereformedabout400millionyearsafterthebigbang.VerificationoftheexistenceofthesestarsisimportantforourunderstandingoftheevolutionoftheUniverse[1].IthasbeenpredictedthatforPopulation-IIIstellarproductionyields,theabundancesofodd-Zelementsareremarkablydeficientcomparedtotheiradjacenteven-Zelements[2].Astronomersaresearchingforlong-lived,lowmassstarswiththeuniquenucleosyntheticpatternmatchingthepredictedyields[3].

简介：Anoveldiodestring-triggeredgated-PiNjunctiondevice,whichisfabricatedinastandard65-nmcomplementarymetal-oxidesemiconductor(CMOS)technology,isproposedinthispaper.Anembeddedgated-PiNjunctionstructureisemployedtoreducethediodestringleakagecurrentto13nA/μminatemperaturerangefrom25°Cto85°C.Toprovidetheeffectiveelectrostaticdischarge(ESD)protectioninmulti-voltagepowersupply,thetriggeringvoltageofthenoveldevicecanbeadjustedthroughredistributingparasiticresistanceinsteadofchangingthestackeddiodenumber.

简介：AhighsensitivityD-shapedholedouble-claddingfibertemperaturesensorbasedonsurfaceplasmonresonance（SPR）isdesignedandinvestigatedbyafull-vectorfiniteelementmethod.WithintheD-shapedholedoublecladdingfiber,thehollowD-sectioniscoatedwithgoldfilmandtheninjectedinahighthermo-opticcoefficientliquidtorealizethehightemperaturesensitivityforthefiberSPRtemperaturesensor.ThenumericalsimulationresultsshowthatthepeakinglossoftheD-shapedholedouble-claddingfiberSPRishugelyinfluencedbythedistancebetweentheD-shapedholeandfibercoreandbythethicknessofthegoldfilm,butthetemperaturesensitivityisalmostinsensitivetotheaboveparameters.Whenthethermo-opticcoefficientis-2.8×10-4∕℃,thethicknessofthegoldfilmis47nm,andthedistancebetweentheD-shapedholeandfibercoreis5μm,thetemperaturesensitivityoftheD-shapedholefiberSPRsensorcanreachto-3.635nm∕℃.

简介：在这份报纸，我们在场一三维(3D)在为收音机频率的晶片水平的真空包装技术微机电的系统(RFMEMS)共鸣器，低损失的硅vias在被用来播送RF发信号。Au-Sn焊接结合被采用象电的导体一样提供真空封装。封装帽子的一个RF模型被建立评估包装的寄生效果，它提供3DRFMEMS封装的一个有效设计答案。与建议包装结构，24dB的signal-to-background比率(SBR)被完成，以及共鸣器的优秀因素(Q因素)在包装以后从8000～10400增加。包装共鸣器有线性频率温度(英尺)在在0楨?慰数?之间的一个温度范围特征?牵敶?牡?牰癯摩吗？？

简介：Inthispaper,weproposeahighlyautomaticapproachfor3Dphotorealisticfacereconstructionfromasinglefrontalimage.Thekeypointofourworkistheimplementationofadaptivemanifoldlearningapproach.Beforehand,anactiveappearancemodel(AAM)istrainedforautomaticfeatureextractionandadaptivelocallylinearembedding(ALLE)algorithmisutilizedtoreducethedimensionalityofthe3Ddatabase.Then,givenaninputfrontalfaceimage,thecorrespondingweightsbetween3DsamplesandtheimagearesynthesizedadaptivelyaccordingtotheAAMselectedfacialfeatures.Finally,geometryreconstructionisachievedbylinearweightedcombinationofadaptivelyselectedsamples.Radialbasisfunction(RBF)isadoptedtomapfacialtexturefromthefrontalimagetothereconstructedfacegeometry.Thetextureofinvisibleregionsbetweenthefaceandtheearsisinterpolatedbysamplingfromthefrontalimage.Thisapproachhasseveraladvantages:(1)Onlyasinglefrontalfaceimageisneededforhighlyautomaticfacereconstruction;(2)Comparedwithformerworks,ourreconstructionapproachprovideshigheraccuracy;(3)ConstraintbasedRBFtexturemappingprovidesnaturalappearanceforreconstructedface.

简介：为了满足我国正在建设的白光中子源（whiteneutronsource,WNS）需求,设计了具有共性化架构的C6D6谱仪读出电子学系统。该系统基于波形数字化技术和PXIe平台,实现对γ能谱和中子飞行时间的测量。介绍了系统设计方案,详细阐述了信号调理模块、时间测量、PXIe平台及相关软件的设计与实现,并开展了系统性能测试和联调实验。测量结果表明：该系统能够正确获得测量数据,满足了白光中子源的首批实验需求。

简介：Inthisstudy,weevaluatethevaluesoflatticethermalconductivityκLoftypeIIGeclathrate(Ge34)anddiamondphaseGecrystal(d-Ge)withtheequilibriummoleculardynamics(EMD)methodandtheSlack'sequation.ThekeyparametersoftheSlack'sequationarederivedfromthethermodynamicpropertiesobtainedfromthelatticedynamics(LD)calculations.TheempiricalTersoff'spotentialisusedinbothEMDandLDsimulations.Thethermalconductivitiesofd-Gecalculatedbybothmethodsareinaccordancewiththeexperimentalvalues.ThepredictionsoftheSlack'sequationareconsistentwiththeEMDresultsabove250KforbothGe34andd-Ge.Inatemperaturerangeof200-1000K,theκLvalueofd-GeisaboutseveraltimeslargerthanthatofGe34.

简介：最近，当半导体仪器变得更复杂，高技术的开发在生产半导体的进程为薄一致电影的形成被要求了。旋转涂层通常被使用在晶片表面上散布光致抗蚀剂。然而，自从旋转，磁盘的速度在旋转涂层很高，扔的光致抗蚀剂向外散布并且在电影表面上重新依附。钩子杯在纺纱在晶片外面被建立涂层，和散布光致抗蚀剂薄雾被在在晶片边和钩子杯之间的差距产生的exhaust流动从晶片边移开。在旋转涂层的干燥过程，是一颗严肃的担心在低旋转的情况中的晶片边附近的电影厚度增加加速。这研究的目的是在晶片表面和液膜的弄干的率上在3D界面层流动上弄明白钩子杯几何学的效果。

简介：AnovelSr2CuInO3Soxysulfidep-typesemiconductorphotocatalysthasbeenpreparedbysolidstatereactionmethodanditexhibitsintriguingvisiblelightabsorptionpropertieswithabandgapof2.3eV.Thep-typesemiconductorcharacterofthesynthesizedSr2CuInO3SwasconfirmedbyHallefficientmeasurementandMott-Schottkyplotanalysis.First-principlesdensityfunctionaltheorycalculations(DFT)andelectrochemicalmeasurementswereperformedtoelucidatetheelectronicstructureandtheenergybandlocations.Itwasfoundthattheas-synthesizedSr2CuInO3Sphotocatalysthasappreciateconductionandvalencebandpositionsforhydrogenandoxygenevolution,respectively.Photocatalytichydrogenproductionexperimentsunderavisiblelightirradiation(λ>420nm)werecarriedoutbyloadingdifferentmetalandmetal-likecocatalystsonSr2CuInO3SandRhwasfoundtobethebestoneamongthetestedones.

简介：ＣｏｒｒｅｌａｔｉｖｅＭｅａｓｕｒｅｍｅｎｔｓｏｆＦｉｓｓｉｏｎＦｒａｇｍｅｎｔｓａｎｄＬｉｇｈｔＰａｒｔｉｃｌｅｓ（α，ｐ）ｉｎ　Ｒｅａｃｔｉｏｎｓｏｆ４０Ａｒ＋２０９Ｂｉ，ｎａｔＡｇａｔ２５ＭｅＶ／ｕ￥ＷｕＥ?..

简介：ThecompressionbehaviourofPd39Ni10Cu30P21bulkmetallicglassisivestigatedatroomtemperatureupto23.5GPausinginsituhighpressureenergydispersivex-raydiffractionwithasynchrotronradiationsource.Pressureinducedstrucuralrelaxationofthebulkmetallicglassisexhibitedwithinthepressurerange.Itisfoundthatbelowabout5GPa,theexistenceofexcessfreevolumecontributestorapidstructuralrelaxation,whichgivesrisetorapidvolumeticchange.Underhigherpressure,furtherrelaxationresultsinstructuralstiffness.

简介：

简介：适用的一本有限投出的杂志的短暂流动上的杂志错误排列的效果在这研究被介绍。新3D计算液体动力学(CFD)分析方法被使用。另外，在杂志适用和转子动力学的油电影的短暂液体动力学的联合伪的计算在分析被考虑。基于结构化的网孔，当杂志在一部油电影的液体动力学模拟期间移动时，为网孔运动的一条新途径被建议更新网孔体积。存在动态网孔模型提供了由流畅不对在杂志轴承的短暂的油流动合适。杂志的运动被作为负担的边界条件与计算电影压力解决忍受转子的系统的动人的方程获得。在液体动力学和转子动力学之间的数据交换被数据文件认识到。从CFD模型获得的结果与没有对齐的杂志轴承上的以前的试验性的结果一致。电影压力，油电影力量，磨擦转矩，错误排列时刻和态度角度为没有对齐并且排列的杂志轴承计算、比较。结果显示适用的表演被被失衡的刺激，和CFD方法基于技术能有效地预言的液体结构相互作用(FSI)引起的错误排列极大地影响在一个忍受转子的系统适用的一本没有对齐的杂志的短暂流动域。

简介：由中科院西安光学精密机械研究所研发的国内首台高速3D内窥OCT影像系统成功问世。该设备使用自主研发的微型光纤探头，可深人心脏病患者血管栓塞处进行光学相干断层（OCT）扫描，获得栓塞处清晰的3D内窥影像。利用该影像技术可帮助医生在心脏手术中对支架安放位置精确定位，并可帮助医生实现对病变血管形态及心脏支架置人状况进行离线直接观察，其成像速度及分辨率都远超现有的血管超声（IVUS）和心脏X光（DSA）技术，对于有效预防支架再狭窄和血栓支架的形成、实现心肌梗死的早期筛查和有效预防以及研究和评价心脏支架安全陛有革命性意义。

简介：我们在aquantum旋转网络的二平行1D旋转链调查纠纷转移，并且证明完美的纠纷转移能在somespecial时间被认识到。另外，“纠纷的现象在thespin被发现的所谓的突然的死亡”网络系统。

简介：A60%Fe/Al2O3catalystwaspreparedbytheco-precipitationmethod.ItwasreducedbyH2toproducemetallicFe,whichwasthensulfidedbyCS2toFe0.96SandFe3S4orphosphidedbytriphenylphosphine(PPh3)inliquidphasestoFe2PandFeP.Itwasfoundthattheironsulfides(Fe0.96SandFe3S4)exhibitedthelowactivityforthehydrodesulfurization(HDS)reactions.TheHDSactivitywasalsolowontheFe(metal)/Al2O3andFe2P/Al2O3catalystssincetheywereconvertedintoFe0.96SandFe3S4duringtheHDSreactions.Incontrast,theFeP/Al2O3wasfoundtobestableandactivefortheHDSreactions.Inparticular,FeP/Al2O3possessedsignificantlysmallerFePparticlesthanFeP/C,leadingtothesignificanthigherHDSactivityofFeP/Al2O3thanFeP/C.

简介：

简介：

简介：