简介：Inthispaper,weproposeaninstantaneousphase-steppingmethodfordeterminingphasedistributionofinterferencefringesutilizingacamerathatisequippedwithamicro-polarizerarrayonthesensorplane.AnopticalsetupofpolarizationinterferometryusingaMach–Zehnderinterferometerwithtwopolarizersisconstructed.Lightemergingfromtheinterferometerisrecordedusingacamerathathasamicro-polarizerarray.Thismicro-polarizerarrayhasfourdifferentopticalaxes.Thatis,animageobtainedbythecameracontainsfourtypesofinformationcorrespondingtofourdifferentopticalaxesofthepolarizer.Thefourimagesseparatedfromtheimagerecordedbythecameraarereconstructedusinggraylevelinterpolation.Subsequently,thedistributionsoftheStokesparametersthatrepresentthestateofpolarizationarecalculatedfromthefourimages.ThephasedistributionoftheinterferencefringepatternproducedbytheMach–ZehnderinterferometeristhenobtainedfromtheseStokesparameters.Theeffectivenessoftheproposedmethodisdemonstratedbymeasuringastaticcarrierpatternandtime-variantfringepatterns.Itisemphasizedthatthismethodisapplicabletotime-variantphenomenabecausemultipleexposuresareunnecessaryforsufficientdataacquisitioninthecompletionofthephaseanalysis.

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简介：在这份报纸，静态、动态的开车进入用餐的餐厅电压上的开的裂缝的效果一静电地激活修理改正并且伸臂微光束被调查。由介绍数学建模，管理静电干扰和动态方程被SSLM和基于Galerkin的减少的顺序模型分别地解决。然后，在微光束的各单个方面的开的快克到一个无团的旋转弹簧和击碎的模式形状被建模，相应自然频率由考虑边界并且修正条件并且使用转移矩阵方法是计算的。最后，微光束的开车进入用餐的餐厅电压上的裂缝深度比率，裂缝位置和裂缝数字的效果被学习。在在用机器制造的过程创造的剩余压力旁边，裂缝能被开始，这被显示出，生长并且因而由减少改变系统的开车进入用餐的餐厅电压自然频率。结果证明裂缝位置在在减少的裂缝深度比率旁边是有效的开车进入用餐的餐厅电压。另外，在修理改正的微光束，为在的裂缝地点有几个点，这被显示出，开车进入用餐的餐厅电压是极值。

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简介：Liquidmicro-jets,producedfromgasdynamicvirtualnozzles(GDVNs),areusedassamplecarriersforinteractionwithX-raybeaminserialfemtosecondcrystallography(SFX).Anumericalinvestigationoftheeffectofthefocusinggastypeontheliquidmicro-jetproperties(itslengthandthickness)ispresented.ThestudycomplementsourpreviousresearchontheinfluenceofoperatingconditionsandthenozzlegeometryonGDVNperformance.Theinfluenceofhelium,argon,carbondioxideandnitrogengases(atafixedmassflowrateof1.6×104mg/min)onfocusingpurewaterjet(flowrateof33μl/min)isanalysed.

简介：AnovelLD-pumpedsingle-frequencymicro-chipgreenlaserispresented.ByusingthecombinationofshortcavityandLoytfilterformedbyRochonprismandKTPcrystal,astablesinglefrequencygreenlaserisobtainedwith60mWoutputat500mWLD-pump.Theoptical-to-opticalconversionefficiencyisabout12%.Theopticalcontactbetweencomponentsofthelaserisadopted.Thislaserhastheadvantagesofacompactstructureandalowcost.

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简介：Atpresent,boththepointsourceandtheimagingpolarizationnavigationdevicesonlycanoutputtheangleinformation,whichmeansthatthevelocityinformationofthecarriercannotbeextractedfromthepolarizationfieldpatterndirectly.Opticalflowisanimage-basedmethodforcalculatingthevelocityofpixelpointmovementinanimage.However,forordinaryopticalflow,thedifferenceinpixelvalueaswellasthecalculationaccuracycanbereducedinweaklight.Polarizationimagingtechnologyhastheabilitytoimproveboththedetectionaccuracyandtherecognitionprobabilityofthetargetbecauseitcanacquiretheextrapolarizationmulti-dimensionalinformationoftargetradiationorreflection.Inthispaper,combiningthepolarizationimagingtechniquewiththetraditionalopticalflowalgorithm,apolarizationopticalflowalgorithmisproposed,anditisverifiedthatthepolarizedopticalflowalgorithmhasgoodadaptationinweaklightandcanimprovetheapplicationrangeofpolarizationnavigationsensors.Thisresearchlaysthefoundationfordayandnightall-weatherpolarizationnavigationapplicationsinfuture.

简介：Anovelhighlyporous3-Dpoly(ε-caprolactone)(PCL)scaffoldwithmicro-channelswasfabricatedbyinjectionmoldinganddiluentaceticacidsleachingtechnologies.Inthisstudy,thechitosanfiberwasemployedtoformthemicrochannelinPCLmatrix.Themorphology,porosityandmechanicalpropertiesofthescaffoldswerestudiedandcalculated.Itwasfoundthatthelargerthecontentofchitosanfiberis,thehighertheporositywouldbe,duetothevolumetricexpansionofchitosanfiberinPCLmatrixduringitbeingleached.Inaddition,thelessthecontentofchitosanfiberis,thehigherthecompressivemoduluswouldbe.

简介：Amodifiedtorsionpendulumapparatusisdevelopedformeasuringtheshearmodulusofsinglefilamentswithuniformmicro-sizeddiameter.Asinglefilamentfixedatbothendsandwitharing-shapedmassattachedatthemiddleisusedasaclamped-clampedtorsionpendulum.Theshearmodulusofsinglefilamentscanbeexpressedasafunctionoftheoscillationfrequencyofthetorsionpendulum.TheoscillationmotionismeasuredwithaCCDlaserdisplacementsensor,anditsfrequencyisdeterminedbytheFastFourierTransform(FFT)method.Theshearmoduliofthreetypesoffilaments:copperwires,tungstenwiresandcarbonfibersareaccuratelymeasuredwiththistechnique.Itisfoundthatthesizeeffectinshearmoduliofbothcopperwiresandtungstenwiresisminor.Finally,theerroranalysisofourmeasurementtechniqueispresentedindetail.

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简介：Aneffectivedesignmethodoffreeformmicrolensarrayispresentedforshapingvariedlaserbeamsintoprescribedrectangularillumination.Thevariableseparationmappingisappliedtodesignconcavefreeformsurfacesforconstructingafreeformlensarray.Severaldedicatedexamplesshowthatthedesignedfreeformopticallensarraycanachieveaprescribedrectangularilluminationpattern,especiallywithoutconsideringtheinitialstatesofincidentlaserbeams.Bothhighcollectionefficiencyandgoodspatialuniformitycanbeavailablesimultaneously.Toleranceanalysisisalsoperformedtodemonstratethatthisopticaldevicecanwellavoidfabricatingdifficultyinactualapplications.

简介：现在的学习报导R134a流动在微隧道的热水池沸腾特征的热转移的试验性的评估。热水池由30平行组成矩形与500m宽度和深度的代表性的尺寸微隧道，以及全部长度30mm。实验与热流动被进行直到从373.33～1244.44kg/m22,团速度>s，蒸汽质量从0.06～0.9。加热的热水池的墙温度能在约50点被控制

简介：为了描述创造登陆的一种新奇技术，在trabecular网状组织以内脱衣指导trabecular微绕过stent(iStent)在经历了phacoemulsification.METHODSThirty的病人的培植--从从2014年5月在phacoemulsification以后经历了iStent培植到2015年2月的30个病人的四只眼睛在我们的回顾的学习被包括。所有iStents经由登陆长带技术被植入。A25计量器microvitreoretinal片被用来切分trabecular网状组织到不到1钟小时，有效地创造登陆脱衣。iStent棉棍沿着登陆长带被压然后stent被释放进34与iStent培植看的trabecularmeshwork.RESULTSOf，(79.4%)27看有的主要开角度的绿内障，(17.6%)6看有的pseudoexfoliation绿内障，并且(2.9%)1看有的眼睛的高血压。在6月的后续(n=17)，低血压患者药的吝啬的数字从2.2减少了

简介：Wereportedacoaxial,micro-dielectricbarrierdischarge(micro-DBD)reactorandaconventionalDBDreactorforthedirectconversionofmethaneintohigherhydrocarbonsatatmosphericpressure.Theeffectsofinputpower,residencetime,dischargegapandexternalelectrodelengthwereinvestigatedformethaneconversionandproductselectivity.Wefoundtheconversionofmethaneinamicro-DBDreactorwashigherthanthatinaconventionalDBDreactor.Andataninputpowerof25.0W,theconversionofmethaneandthetotalC2+C3selectivityreached25.10%and80.27%,respectively,withamicro-DBDreactorof0.4mmdischargegap.Finally,anonlinearmultipleregressionmodelwasusedtostudythecorrelationsbetweenbothmethaneconversionandproductselectivityandvarioussystemvariables.ThecalculateddatawereobtainedusingSPSS12.0software.Theregressionanalysisillustratedthecorrelationsbetweensystemvariablesandbothmethaneconversionandproductselectivity.

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简介：LED1642GW是意法半导体的新一代LED阵列驱动器，新增一系列完全可设置的创新功能，同时保留原来的24针标准封装，在实际应用中只需一个外部电阻，从而可大幅降低组件成本，提高系统设计的灵活性。新的嵌入式功能让系统设计变得更加灵活，为用户提供不同的配置选择：局部调光、全局电流调节、开关时间设定、通道间川页序延时、先进的LED故障检测报告、自动节能专利技术、串行数据与时钟重新同步等诸多功能。LED1642GW专注于满足图1所示应用领域对降噪的需求，让用户能够通过串行接口，设定输出通道的开关速度，共有四档速度可选，导通时间设定范围为30nS-270nS。配合可设定通道间输出延时，开关时间设定让用户轻松地调节应用，切实降低EMI干扰，最大限度提升电压稳定性。当输出通道设为关断且在收到第一通道导通命令后快速自动唤醒时，自动省电节能创新功能可自动关断驱动器。

简介：摘要随着LED照明在北京奥运会开幕式盛典上的惊艳亮相，美轮美奂、气势磅礴，给全世界留下震撼的印象，也让国人对LED有了全新的认识。现在我厂在部分楼体亮化上也采用了LED亮化，无论是在效果上还是在节能方面都有很大的改进。

简介：摘要LED作为一种绿色光源在城市道路照明中受到人们越来越多的关注，但目前的LED路灯在散热、重量、维护等方面还存在着一定的缺陷。介绍了LED及其在城市照明中的应用，通过分析当前国内LED路灯中存在的缺陷，对LED路灯设计中的创新策略进行了探讨。?

简介：摘要在资源紧缺的大环境下，节能环保已经成为人们的共识。在道路照明领域之中，LED照明拥有耗电量少、功率低、满足国家环保节能政策、人性化、稳定性以及辐射污染少等诸多优点，这样就使得在道路照明领域之中，LED照明拥有广泛的应用前景。因此，在道路照明之中，LED等就成为最佳的选择，基于此，我们现针对LED光源的照明应用问题做一具体分析。