简介：Abstract:Inordertounderstandtheeffectofthesolidificationstructureontheformabilityofultralowcarbonferriticstainlesssteel(FSS),thisworkstudiestheridgingphenomenonandthedeep-drawingpropertyindetailandtheresearchmethodwasX-raydiffraction(XRD)andscanningelectronmicroscope(SEM)technique.Theresultshowsthatthecolumnargrainspecimenhadahigherridgingheightthantheequiaxedgrainspecimen,whichwasmainlyattributedtotheformationofgraincoloniesinthecolumnargrainspecimen.Afterfinalrecrystallizationannealing,theequiaxedgrainspecimenobtainedahigh-intensityγ-fibertextureandanexcellentdeep-drawingproperty.

简介：Withrapiddevelopmentcommunicationsystem,highsignaltonoiseratio(SNR)systemisrequired.Inhighfrequencybandwidth,highloss,lowQinductorsandhighnoisefigureisasignificantchallengewithon-chipmonolithicmicrowaveintegratedcircuits(MMICs).Toovercomethisproblem,highQ,lowlosstransmissionlinecharacteristicswasanalyzed.Comparedwiththesameinductorvalueofthelumpedcomponentandthetransmissionline,ithasahigherQvalueandlowerlossperformanceinhighfrequency,anda2-stagecommon-sourcelownoiseamplifier(LNA)waspresented,whichemployssourceinductorfeedbacktechnologyandhighQlowlosstransmissionlinematchingnetworktechniquewithover17.6dBsmallsignalgainand1.1dBnoisefigurein15GHz–18GHz.TheLNAwasfabricatedbyWINsemiconductorscompany0.15μmgalliumarsenide(GaAs)Phighelectronmobilitytransistor(P-HEMT)process.Thetotalcurrentis15mA,whiletheDCpowerconsumptionisonly45mW.

简介：ThemorphologiesevolutionofvarioustypesofinclusionsinTi-IFsteelwereobservedbyaspecialdeptherosionmethod,andtheformationandevolutionprocesswerediscussed.TheresultsshowedthatthemaininclusionswereFeO·xMnObeforeAldeoxidizationandtheratioofintegratedoxygenandfreeoxygenwasinrangedof0.3to0.4.Inpresentstudy,themaineffectfactorsonthemorphologiesofAl2O3inclusionswere[Al]/[O]Free（solublealuminumdividefreeoxygen）andinitialfreeoxygen;clusterAl2O3wasformedeasilywithhighfreeoxygen([O]Free)andlow[Al]/[O]（blew3inpresentstudy）.Otherwise,thedendriticAl2O3wasformed;coral-likeAl2O3wasthemixtureofthedendriteAl2O3andsphericalAl2O3.SomeAl2O3·TiOxinclusionsappearedbecauseahigh[Ti]concentrationregionexistedaround70TiFe（containing70percenttitanium）particlesafter70TiFeaddition.ThemaximumsizesofAl2O3reached800μmwhen3minaluminumwasadded;asthetimepast,thelargesizeAl2O3decreasedsignificantly;themaximumsizeofAl2O3wasblew100μmand50μmincalmingsampleandtundishsamplerespectively.

简介：Inthepresentwork,themicrostructure,texture,andmechanicalpropertiesofacold-rolledTi-IFsteel,afterannealingatdifferentheatingrates,havebeeninvestigated.Theresultsrevealthatthemeangrainsizeisgraduallyrefinedfrom19.2to16.3μmastheheatingrateincreasesfrom4to50℃/s,butrefinedonlyslightlyatheatingratesofover50℃/s.Therecrystallizationmicrostructurehasastrongtexture,whichisaresultofthesharpeningofthefavorable{111}//ND(normaldirection)texturecomponentsorγ-fiber.Withincreasingheatingrates,thepeakvalueoff(g)ofγ-fiberdecreasesfrom17to9.Theyieldandtensilestrengthsincreasegraduallyastheheatingrateincreasesfrom4to50℃/s,butremainalmostunchangedatheatingratesofmorethan50℃/s.Thetotalelongationanduniformelongationincreasegraduallyastheheatingrateincreasesfrom4to100℃/s,butdecreasesslowlyforheatingrateshigherthan100℃/s.Astheheatingrateincreasesfrom4to100℃/s,theplasticstrainratioofthesteeldecreasesfrom2.8to2.2;however,itincreasesto2.9forheatingratesabove100℃/s.Thestrainhardeningexponentremainsunchangedat0.27inallannealingcycles.

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简介：Weproposeanultra-widebandopticaldiodedevicebasedontwo-dimensionalsquare-latticephotoniccrystals.Forthedevice,theoddmodeiscompletelytransmittedinonedirectionandconvertedtothefundamentalevenmode,butcompletelyreflectedintheotherdirection.Theoperationbandwidthofthedeviceispreservedwithinaratherwiderangeoffrequencies,whichisover6.5%ofthecentralfrequency.Adirectionalcouplerand90°bendareutilizedasthecompositefunctiondevicewithmodefilterandmodeconverter.Itispossiblethatthephotoniccrystaldevicecanhelptoconstructon-chipopticallogicaldevicesandbenefitgreatlytotheopticalsystemswithmultiplespatialmodes.更多还原

简介：可见光的照射对感光文物会造成褪色、老化等损害。为了预防可见光对感光文物的危害，有必要对其进行监控。累积照度指示卡能通过颜色变化直观反映文物受到的照射量，是一种简单有效的半定量检测措施。现广泛应用于博物馆领域的是国际标准化组织（ISO）BlueWoolStandards（BWS）累积照度指示卡。然而BWS对光的敏感度不够高，

简介：有极端协议、简单的结构的波长splitter被使用两飞机波浪扩大(PWE)建议并且分析方法和有限差别时间领域(FDTD)方法。设备基于在二平行的锂niobate之间的方向性的联合(LiNbO3，行)nanowire光波导。有5m的acoupling区域长度的波长splitter能比97%高用发射度为相应产量分开1.31m和1.55m波长。

简介：Inthisessay,westudiedhowheatinputaffectedthemicrostructure,hardness,grainsizeandheat-affectedzone(HAZ)dimensionofWCX355ultra-finegrainsteelwhichwasweldedrespectivelybytheultranarrow-gapwelding(UNGW)processandtheoverlayingprocesswithCO2asprotectiveatmosphereandlaserweldingprocess.Theexperimentalresultsshowwhentheheatinputchangedfrom1.65kJ/cmto5.93kJ/cm,thewidthofitsHAZrangedfrom0.6mmto2.1mm.Theaveragegrainsizegrewupfrom2～5μmofbasemetalto20～70μmandfoundnoobvioussoftenphenomenoninoverheatedzone.Thewidthofnormalizedzonewasgenerallywideas2/3asthatofthewholeHAZ,andthegrainsizeinthiszoneissmallerthanthatinbasemetal.Underthecircumstanceofequalheatinput,theHAZwidthofUNGWisnarrowerthanthatofthelaserwelding.

简介：在这份报纸，聚合物电镀物品眼的调节的人被设计并且模仿了使用完整的vectorial有限元素方法。首先，顺序边元素在有限元素实现被使用，并且有限元素技术被用来彻底地获得调节的人反应。从数字分析，调节的人的频率分散重要参数，例如微波有效索引nm，微波特征阻抗ZC和微波损失，被提取。我们的设计展出260GHz的电的带宽和大约2.8V的开车电压?慶潰?湩搠瑥楡?朠瑥琠敨愠慮祬楴慣?硥牰獥楳湯漠吗？

简介：在极端薄的电影在dewetting上理解nanoparticles的影响，两个都，线性稳定性理论和数字模拟在现在的学习被执行，与考虑摆动结构(OS)力量。长规模近似被利用为电影厚度和nanoparticle集中简化水动力学和散开方程到一个非线性的系统。结果证明nanoparticles的存在通常压制dewetting过程。为这现象负责的二物理机制在现在的学习被探讨。当摆动的结构的力量相对更小时，电影进化的必要特征类似于没有粒子的流动的盒子。线性生长率的减小和电影破裂的推迟能由于nanoparticles的存在被归因于粘性的增长。在另一方面，当OS力量的紧张变得更强壮时，电影的逐步的变瘦能被观察它阻止这部电影破裂。数字模拟显示这现象被一个稳定的地区的存在由于结构的力量的摆动的性质引起。另一有趣的发现是nanoparticle集中的分发的不一致可能使动摇一部spinodally稳定的电影，和扳机电影dewetting的出现。

简介：Anoveldirectsequence(DS)designmethodforsuppressingthenarrowbandinterferenceinDSspreadspectrumultra-widebandreceiversisproposed.Themethodhaslowcomputationalcomplexityandcanbeeasilyimplementedinpracticasystems.Simulationresultsprovethattheproposedmethodieffectivetosuppressthenarrowbandinterference.Therefore,theintegrityofboththeultra-widebandwidthandthenarrowbandsystemscanbehighlyenhanced.更多还原

简介：吸收的时间的进化由单个飞米导致了第二脉搏(130fs，800nm)与高度，在LiNbO3的紧张用探查阴影成像技术被获得以便调查导致光的选举松驰过程。由浸透有高紧张激光脉搏的极化子密度，微微秒时间规模上的极端快的腐烂过程被观察。Thedecay时间常数是大约141ps，它被归因于直接内部乐队election-holerecombination过程。

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简介：热变丑行为二媒介碳超离频有不同的铌内容的力量钢被调查旁边使用的Zener-Hollmom参数和处理地图，和铌的效果中等的碳钢的热变丑行为上的增加被决定。热压缩测试在在温度使变形从的一个Gleeble-3500thermo机械的模拟器上被进行850～1200?景琠敨映畯?瑳条獥愠敲搠獩畣獳摥。

简介：Inthispaper,wereportanexperimentaldemonstrationofenablingtechnologyexploitingresonantpropertiesofplasmonicnanoparticles,fortherealizationofwavelength-sensitiveultra-minituarized(4μm×4μm)opticalmetadevices.Tothisend,theexampleofa1.3/1.6μmwavelengthdemultiplexerisconsidered.Itstechnologicalimplementationisbasedontheintegrationofgoldcut-wire-basedmetalinesonthetopofasilicon-on-insulatorwaveguide.TheplasmonicmetalinesmodifylocallytheeffectiveindexoftheSiwaveguideandthusallowfortheimplementationofwavelength-dependentopticalpathways.The1.3/1.6μmwavelengthseparationwithextinctionratiobetweentwodemultiplexers’channelsreachingupto20dBisexperimentallydemonstrated.Theconsideredapproach,whichcanbereadilyadaptedtodifferenttypesofmaterialplanarlightwavecircuitplatformsandnanoresonators,issuitedfortheimplementationofagenericfamilyofwavelength-sensitiveguided-waveopticalmetadevices.

简介：一种极端狭窄的双隧道的过滤器原则上被建议anddemonstrated试验性地。这个过滤器借助于二个取样的纤维布拉格栅栏(SFBG)被设计，在一个人是周期的0-pi采样，其它是对称的空间采样的地方。Theformer能在传播系列创造二stopbands，后者能生产twoultra-riarrow通带。我们的过滤器有大约1下午的3-dB带宽，其价值是二ordersof大小不到传统的SFBG过滤器的带宽。建议过滤器有隧道间距仍然是的amerit未改变当调节过滤器时。

简介：Abstract:TheeffectofTiandNbontherecrystallizationandtherecrystallizedgrainsizeofthehot-rolledplatesandcold-rolledsheetsofultralowcarbonandnitrogen(ULCN)Cr18ferriticstainlesssteel(FSS)isinvestigated.Theresultsshowthattherecrystallizationofhot-rolledplatesandcold-rolledsheetswith0.29%Nbisdelayed,andtherecrystallizedgrainsaresignificantlyrefined.

简介：Inthispaper,wepresentanultra-compact1Dphotoniccrystal(PhC)Bragggratingdesignonathinfilmlithiumniobateslotwaveguide(SWG)via2D-and3D-FDTDsimulations.2D-FDTDsimulationsareemployedtotunethephotonicbandgap(PBG)size,PBGcenter,cavityresonancewavelength,andthewholesizeofPhC.3DFDTDsimulationsarecarriedouttomodeltherealstructurebyvaryingdifferentgeometricalparameterssuchasSWGheightandPhCsize.AmoderateresonancequalityfactorQofabout300isachievedwithaPhCsizeofonly0.5μm×0.7μm×6μm.TheproposedslotBragggratingstructureisthenexploitedasanelectricfield(E-field)sensor.Thesensitivityisanalyzedby3D-FDTDsimulationswithaminimumdetectableE-fieldassmallas23mV∕m.Thepossiblefabricationprocessoftheproposedstructureisalsodiscussed.ThecompactsizeoftheproposedslotBragggratingstructuremayhaveapplicationsinon-chipE-fieldsensing,opticalfiltering,etc.