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简介：Syntheticapertureimaginglidarisanactivenewimagingsystem,whichcanofferafinerazimuthresolutionthantheSARsystem.Anindoorsystemofsyntheticapertureimaginglidarisgiven,whichisademonstrationaboutsyntheticaperturetoimagerotatingobjects.Firstly,thebasicprincipleisintroduced.Then,thebasicmethodandkeytechniquesareanalyzed.Afterthatanimprovedsystemisgivenwiththetransmittingandthereceivinglensapartfromeachotherwhichcaneliminatetheinterferenceefficiently.Finally,theblockdiagramandtheresultofimagingsystemaregiven,whichprovethevalidityofthesystemandthefeasibilityofthesyntheticaperturetechniquesinopticaldomain.

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简介：Thispaperintroducesthemethodofsupportvectormachine(SVM)intothefieldofsyntheticearthquakepre-diction,whichisanon-linearandcomplexseismogenicsystem.Asanexample,weapplythismethodtopredictthelargestannualmagnitudefortheNorthChinaarea(30°E-42°E,108°N-125°N)andthecapitalregion(38°E-41.5°E,114°N-120°N)onthebasisofseismicityparametersandobservedprecursorydata.ThecorrespondingpredictionratesfortheNorthChinaareaandthecapitalregionare64.1%and75%,respectively,whichshowsthatthemethodisfeasible.

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简介：Ｇｒｉｄｄｉｓｐｅｒｓｉｏｎｉｎｇｅｎｅｒａｔｉｎｇｆｉｎｉｔｅ－ｄｉｆｆｅｒｅｎｃｅｓｓｙｎｔｈｅｔｉｃｓｅｉｓｍｏｇｒａｍｓＡｂｄｏｌｒａｈｉｍＪａｖａｈｅｒｉａｎ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｐｈｙｓｉｃｓ，ｔｈｅＵｎｉｖｅｒｓｉｔｙｏｆＴｅｈ...

简介：在过去的十年，nanopores为各种各样的潜在的应用程序广泛地被开发了，并且他们的性能极大地取决于nanopores的表面性质。原子层免职(ALD)是为扔薄电影的一种新技术，它很快从一种壁龛技术被开发了到一个确定的方法。ALD电影能保角地甚至在nanoscale在限制区域盖住表面，因此，是一个强大的工具修改合成nanopores并且也的表面制作复杂nanopores被证明。这评论在nanopore合成和ALD基本知识上给简短介绍，然后集中于由ALD和他们的应用程序处理的合成nanopores的各种各样的方面，包括单个分子的察觉到，nanofluidic设备，nanostructure制造和另外的应用程序。

简介：当前的学习为词法床变化的预言集中于一个三维的数字模型的申请。在一座水库的沉积免职在10-year-flood期间被调查，模拟的结果被验证，数据源于物理模型研究。因为在原型的小谷物尺寸，合成成粒在物理模型被使用。数字计算领域是物理模型的繁殖，包括谷物尺寸和粒子的密度，以便保证相似性。CFD代码SSIIM，它解决跑方程在三尺寸，被用于模拟。在SSIIM的沉积运输被划分成推迟的沉积运输，由解决传送对流散开方程，和水流带来的碎石运输计算了，由一个实验公式计算。数字模拟的结果对应于很好物理模型学习的结果。模仿的地点和在水库的沉积免职的模式是在物理模型的观察分发的一个精确代表。

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简介：Inthispaper,weproposeasimplifiedspatialchannelsoundingmethodbyutilizingbistaticsyntheticapertureradar(BiSAR)principles.DespitethedifferentdeploymentgeometriescomparedwithaconventionalBiSARsystem,thefeasibilityoftheapproachisestablishedby1)theproposedmethodachievesabetterspatialresolutionthanconventionaldirectionalchannelsoundersand2)reconstructionalgorithmsbasedontime-domainbackprojectioninconjunctionwithadigitalelevationmodelprovideagoodimagingperformanceandaresuitableforreconstructingthespatialdistributionofscatterers.Simulationsofahigh-speedrail(HSR)scenariodemonstratethattheestimatedpowerdelayprofiles(PDPs)andpowerangleprofiles(PAPs)areclosetotheactualvalues.

简介：Weexperimentallydemonstrateself-trappingoflight,asaresultofplasmonicresonantopticalnonlinearity,inbothaqueousandorganic(toluene)suspensionsofgoldnanorods.Thethresholdpowerforsolitonformationisgreatlyreducedintolueneasopposedtoaqueoussuspensions.Itiswellknownthattheopticalgradientforcesareoptimizedatoff-resonancewavelengthsatwhichsuspendedparticlestypicallyexhibitastrongpositive(ornegative)polarizability.However,surprisingly,aswetunethewavelengthoftheopticalbeamfromacontinuous-wave(CW)laser,wefindthatthethresholdpowerisreducedbymorethanthreefoldattheplasmonicresonancefrequency.Byanalyzingtheopticalforcesandtorqueactingonthenanorods,weshowtheoreticallythatitispossibletoalignthenanorodsinsideasolitonwaveguidechannelintoorthogonalorientationsbyusingmerelytwodifferentlaserwavelengths.Weperformaseriesofexperimentstoexaminethetransmissionofthesoliton-formingbeamitself,aswellasthepolarizationtransmissionspectrumofalow-powerprobebeamguidedalongthesolitonchannel.Itisfoundthattheexpectedsyntheticanisotropicpropertiesaretoosubtletobeclearlyobserved,inlargepartduetoBrownianmotionofthesolventmoleculesandalimitedorderingregionwheretheopticalfieldfromtheself-trappedbeamisstrongenoughtoovercomethermodynamicfluctuations.Theabilitytoachievetunablenonlinearityandnanorodorientationsincolloidalnanosuspensionswithlow-powerCWlaserbeamsmayleadtointerestingapplicationsinall-opticalswitchingandtransparentdisplaytechnologies.

简介：Itisaveryimportantandcomplicatedissuetochooseandconfirmtechnologyschemes,whichisalsoacomplicatedsystemengineeringthathascharacteristicssuchasmulti-factor,multi-levelandmulti-goaletc.Soweneedtooptimizeandappraiseitwiththemethodofmulti-goalandmulti-principle.Basedondiscussingtherelationbetweentechnologyandeconomy,thispaperputsforwardthefactorswhichshouldbeconsideredtoappraisetechnologyschemessynthetically,thoughtsandmethodsofvariantvalue-weighted,andbringsforwardanewsyntheticalappraisalmodelwhichcanappraisetechnologyschemesobjectivelyandcomprehensively.

简介：Weproposeaspeckle-reductionmethodbasedonwavelengthcharacteristicsofspeckleeffectinsyntheticapertureimagingladar(SAIL).Thereturnsignal,whichisthebackscatteringfieldwithspeckleeffectfromtheroughsurfaceoftarget,canbeintegratedoverNchirpperiodsandheterodynedetectedwithalocal-oscillatorsignal.Afterperformingimageprocessingrespectively,thefinalimagecanberegardedastheincoherentsuperpositionoftheNsub-images.Numericalsimulationsindicatetheeffectivenessofthismethod.OurresearchmayfacilitatepracticalapplicationsofSAIL.

简介：ThispaperpresentsgeneralizedCAPP(G-CAPP)methodwhichdealswithmacroprocessplanningformulti-objectiveintheplanningstageofproductionlineofaccuracywelding(PLAW)basedonthefeaturesofaccuracyweldingproduction(AWP).G-CAPPoffersfoundationsforprototypedesignandgeneralequipmentsorting,productioncapacitypredicationandproductionanalysisbymeansofsimulationandoptimization.Asynthetichierarchyevaluation(SHE)modelforG-CAPPestablishedaccordingtotheplanningobjectiveisutilizedtoestimatethealternateprocessingplansbyusingmembershipfunctionandanalytichierarchyprocess(AHP)ofoperationaltheory.Theassemblyweldinglineofhydraulictorqueconverter(HTC)isasanexampleoftypicalAWPtoexplicateG-CAPPandsyntheticevaluatingstrategyofPLAW.ThefeasibleandrationalprocessconfigurationstrategiesofHTCassemblyweldinglinearepointedoutunderdifferentplanningobjective.

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