简介：BCD工艺是一种先进的单片集成工艺技术,把双极器件和CMOS器件同时制作在同一芯片上。它综合了双极器件高跨导、强负载驱动能力和CMOS集成度高、低功耗的优点,使其互相取长补短,发挥各自的优点。更为重要的是,它集成了DMOS功率器件,DMOS可以在开关模式下工作,功耗极低。不需要昂贵的封装和冷却系统就可以将大功率传递给负载。低功耗是BCD工艺的一个主要优点之一。本篇文章对高性能LDMOS开发中的DoubleResurf技术进行了简要阐述。

简介：Thestrengthofthepowerfrequencyelectricintensityandmagneticfieldofthe500-kVdoublecircuittransmissionlineswascalculatedbyusingtheequivalentchargemethodandtheAmpere'sLaw,andtheenvironmentalimpactfactorsofthefieldswereevaluated.Byoptimizingthephasesequence,thefrequencyelectricintensityandmagneticfieldstrengthcanbereduced.Withinadistanceof25mfromthecenterofthetransmissionline,thepowerfrequencyelectricintensityandmagneticfieldstrengthfalloffsharplywiththedistanceincrease.Finally,thebestphasesequenceandtheminimumgroundclearanceofthetransmissionlineswereobtainedtomeettherequirementsoftheleastimpactonenvionment.

简介：在这份报纸，一个理想化的不安追随者“巨浪流动概念的模型”为典型Meiyu，正面的结构被设计包括多相的microphysicalparameterization用一个非静水力学的、完整可压缩的暴风雨规模模型在Meiyu前面向中央规模结构解释ofrainbands。另外，敏感周围的南方的风的垂直分发的数字实验被进行调查中央规模的产生机制两倍雨线。数字实验的结果证明入侵的凉爽、干燥的downdraft由环境向上在北方的风戏加强了一个很重要的角色到中央规模的产生和维护两倍rainbands.Moreover，入侵的干燥、凉爽的downdraft的紧张和规模与当西的喷气的加速向上发生时，集体调整导致的第二环流的紧张有关。

简介：

简介：在为光玻璃BK7的擦伤过程的有弹性塑料的转变政体和易碎可锻的转变政体被分析基于赫兹波方程和被魏建议的压力比率理论。为有变量被有限元素模拟的ABAQUS软件基于精力破裂理论模仿的砂砾间隔距离的光玻璃BK7的交往的擦伤进程。为光玻璃BK7的双砂砾交往擦伤测试在DMG超声的70-5上被执行线性，由哪个有限元素模拟的可靠性被验证。细工品的表面形态学被扫描电子显微镜学(SEM)分析，它证明沟的宽度随擦伤深度和砂砾间隔距离的增加显然增加了。沟的宽度的结果与模拟结果一致。表面下的损坏层被蚀刻的HF酸的方法分析，它证明有交叉的裂缝的一个区域。抓的力量被KISTLER的threedimensional测力计测量，它证明第二抓的力量随抓深度和砂砾间隔距离的增加增加了。在第二处擦伤的力量在第一次是比那小的，它与Griffith破裂理论一致。

简介：Inordertogaincircularlypolarizedlightofleft-handedandright-handedrotationbyusingafixeddevice,aleft-handedandright-handedrotationdoublefunctioncircularpolarizerisdesignedwithtwoλ/4retardersandonepolarizer,anditsoperatingprincipleisanalysedbymatrixopticalmeans.Theresultindicatesthatwhenthemonochromaticlightentersthiscircularpolarizerinthepositivedirectionandthenegativedirection,theemergentlightshouldbecircularlypolarizedlight,ofleft-handedandright-handedrotationrespectively.Thetestingsystemhasbeenestablishedtoverifytheaboveresults.

简介：Undergroundlifelineengineering(ULEforshort)inmoderncitydemandstheap-preciationofanactivefaultinburiedbedrock.Generallyspeaking,alargenumberofurbangeologicaltexturesofabasementmayallbesimplifiedintoadualgeologicaltexturemodel,i.e.,theupperpartofthebasementconsistsofloosecoveringlayerandthelowerpartconsistsofbedrock.Thestudyofanactivefaultshouldincludethreepartsofcontents,i.e.,todeterminethelowertimelimitofactivityofthefault,andthetimelimitmustberecognizedbybothofdesigningengineersandgeolo-gists;onthebasisofthestudiesofrepetitionperiodsofearthquakeoccurrencetodeter-minewhetherthefaultmovesornotduringtheallowedtimeofefficacyofbuildingsandconstructions;forthesakeofengineeringpractice,theactiverateofthefaultmustbegiven.ThefaultwithdifferentactivemechanismhasdifferenteffectsontheULE.Theauthorsstudiedtheeffectoflateralnon-uniformoverburdensiteontheULEbymeansofthesu

简介：Inthisletter,apiezoaeroelasticenergyharvesterbasedonanairfoilwithdoubleplungedegreesoffreedomisproposedtoadditionallytakeadvantageofthevibrationalenergyoftheairfoilpitchmotion.Ananalyticalmodeloftheproposedenergyharvestingsystemisbuiltandcomparedwithanequivalentmodelusingthewell-exploredpitch-plungeconfiguration.Thedynamicresponseandaveragepoweroutputoftheharvesterarenumericallystudiedastheflowvelocityexceedsthecut-inspeed(flutterspeed).Itisfoundthattheharvesterwithdouble-plungeconfigurationgenerates4%–10%morepowerwithvaryingflowvelocitieswhilereducing6%ofthecut-inspeedthanitscounterpart.

简介：在Yangjiang的大约400地震的地点，广东省被决定用两倍，差别地震地点算法(DDA)。seismicity模式变得从分离格子专注。Yangjiang地震顺序表演的破裂特征在NW和NE方向的结合的分布。有30的一个角度和一段201on的有30的一个角度和一段30km的主要分发趋势NE和剧降NE，和次要的分发趋势NW和剧降SE。焦点的深度是5km15km。Enping地震顺序的分发，离Yangjiang不远，是趋势NW。在hypocenter分发和地质的结构之间的关系被讨论。

简介：Thepurposeofcharacterizingtheimageofspacephotographicinstrumentistogainthespaceincludedanglesfromthreecoordinateaxesinthethree-dimensionalcoordinateoftheimageandthedirectionalityofthethreeaxesofcoordinateintheframeofaxesoftheinstrument.Thetworeferenceframeswillkeepinthesamedirectionfinallybyadjustingaccordingtospaceangles.Thisproblemwassolvedbyanewhigh-precisionmeasurementsystemcomposedofadouble-theodoliteandasetofcommunicationsystem.Inthesurveysystem,twoTDA5005totalstationsfromLeicaCompanywillbeselectedasthedouble-theodoliteandtheinterdependenceofbothcoordinatesystemscanbeachievedbymovingthestationsonlyatonetime.Therefore,thismeasurementsystemprovidesahighlyefficientandhigh-precisionsurveyingmethodtotheimagecalibrationofthespacephotographicinstrument.Accordingtotheexperiment,itsmeasuringaccuracycanreacharc-secondlevel.

简介：我们综合有单个多孔的壳和Ag@Au/Ag@Au的空结构的Ag@Aunanoparticles由使用流电的代替反应加倍壳并且调查他们的线性、非线性的光性质。我们的结果证明空多孔的nanoparticles的表面电浆子回声波长能被控制HAuCl4的体积容易在可见、近的红外线的区域在一个宽范围调节。双shelledAg@Au/Ag@Aunanoparticles的非线性的光折射被电浆子回声显著地提高。我们的调查结果可以在生物传感器和非线性的光nanodevices发现应用。

简介：这份报纸基于双层结构建议一条紧缩的极化微条天线。整个天线的带宽被分别地扩展顶和底部层拓宽。在天线结构和尺寸的调整的设计以后，建议天线能两个都在2.33GHz2.97GHz完成左边、右边的圆形的极化。测量结果显示有效带宽是在S乐队的640MHz，相对带宽能与S11完成24%不到15dB。

简介：

简介：Inordertoenhancethebearingcapacityofnon-circulargearpair,thenon-circulargearpairwithdoublegeneratinganglesisproposedbasedonthedesignideaofunsymmetricalgearwithdoublepressureangles.Thetoothprofileisdesignedbygeneratingcuttingtheory,thepurerollingmathematicmodelthatthecenterlineofunsymmetricalrackrollalongnon-circularpitchcurveisbuilt,thedigitalmodelofnon-circulargearwithdoublegeneratinganglesiscreatedthroughtheseconddevelopmentmethodofCADsoftware,andthenthedrivecharacteristicandtoothstrengthareanalyzed.Theresultsshowthatthedesignmethodfordoublegeneratinganglesnon-circulargearproposedinthispaperisfeasible,whichissignificanttoimprovethebearingcapacityofnon-circulargearpair.

简介：

简介：Ｘ－ｒａｙＤｏｕｂｌｅ－ｃｒｙｓｔａｌＤｉｆｆｒａｃｔｏｍｅｔｅｒｗｉｔｈＨｏｒｉｚｏｎｔａｌＳｌｉｔｓａｎｄＩｔｓＡｐｐｌｉｃａｔｉｏｎｓＸｕＪｉｎｇｙａｎｇａｎｄＺｈｕＮａｎｃｈａｎｇ徐景阳，朱南昌（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｌｅｏｆＭｅｔａ...

简介：AdoubleimmunocytochemicalstainingmethodwasusedtodemonstrateHBsAgandHBcAgsimultaneouslyinthesamesectionsof58hepatocellularcarcinomas.SeveraltumorcellscontainedbothHBsAgandHBcAg.TheseresultsdemonstratethathepatitisBvirus(HBV)DNAintumorcellscansimultaneouslyexpressbothHBsAgandHBcAgandsuggesttheproductionofacompletevirusbythesecells.CytoplasmicmembranousHBcAgwasfoundnotonlyinwelldifferentiatedhepatocellularcarcinomabutalsoinmoderateandpoorlydifferentiatedhepatocellularcarcinoma.ThelocalizationofHBcAgintumorcellsappearstobethesameasthatofsurroundingnontumorouslivertissue.

简介：double-sine-Gordon方程借助于所谓的印射方法被学习。一些新准确答案是坚定的。

简介：

简介：没有明显的形态学损坏的一条直接decarbonation线路为大测微计规模被开发分层的双氢氧化物(LDH)。首先，我们综合了有由最近报导的脲水解作用方法的测微计尺寸的侧面的尺寸的纯、六角形形状的LDH。然后，使用HNO3NaNO3混合了答案，有在夹层(LDH_CO3)的碳酸盐阴离子的获得的LDH直接被使除去碳酸到它的硝酸盐形式，LDH_NO3，它的形态学和粒子尺寸仍然是未改变的。与最近出版的二拍子的圆舞decarbonation方法相比，此处报导的直接decarbonation是很方便的。