简介：Searchoutallthelistedwordsinthegrid.

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简介：TaoJianzhong,astudentofscientist'QianXuesen,isanexpertonaerospace(航空航天).Hegiveslessonsatourschool.Look,everyoneislisteningattentively(专注地)!

简介：新产品MultiRanger支持零售商在收货、门店存储区域、收银处使用单个读取器。该解决方案在门店(150-200平方米时)天花板处使用PervasIDUHFRFIDSpaceRanger读取器,并在接收区域、存储区域、收银区域及门口处安装了天线。该产品将通过提高更准确的库存数据以减少库存需求,提升销售额,同时减少手持读取器扫描标签的员工数量,并可通过识别离店物品以进行防损。

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简介：investmentofthistypeofbusinessisnotcomplex.Hence,thesurvivalofthistypeofbusinessisnoteasilyguaranteedbecauseofnotonlyhighcompetitivenessbutalsounclearinformationfromtheuserside.Entrepreneursofcoworkingspacesneedtounderstandthecharacteristicsandperspectivesofuserswhichmaydifferinvariousregionsandcultures.Thisresearchinvestigatedtheusersofcoworkingspacesintermsoftheircharacteristics,behaviors,andperspectives.ThescopefocusedoncoworkingspaceslocatingonorclosedtothemasstraintransitstationsofCBDBangkok.Theresearchappliedquantitativeapproachthroughquestionnairesurveyswith300respondentsduringNovember,2017.Therearemanyinterestingresultsfoundfromtheanalysisandsomehowdifferfrompaststudies.Themajorityofrespondentswereyoungerthan25yearsoldwhowerestudents.However,aquarterofthosewere“CorporateEmployee”.Coffeeshopwasthetopplacetoworkoutsideownoffice,secondedbycoworkingspaces.Thebehaviorsofthemajorityoftherespondentsincluded:80%visitedcoworkingspacesatleastoneaweekandalmosthalfvisited3-4timesaweek;theyspentatleastthreehourspervisitandabout15%spentlongerthansixhours.Theperspectivesofmostrespondentswereusedcoworkingspacestoincreaseproductivityandchoseaplacebasedonlocation.Theresultscallforfurtheranalysisandstudies.

简介：SpaceisanimportantpartoftheSino-USrelationship.Itreflectsthegeneraldirectionofbilateralrelations,yethasitsowndevelopmenttrajectory.AsSino-USrelationshadtheirupsanddownsinthe1990s,spacecooperationbetweenthetwocountrieswasrelativelyconsistentandstable.Butaseconomyandtradebecamemoreandmoredeeplyintertwinedinthe21stcentury,spacecooperationlostitsmomentum.Thispaperintendstoexplorethereasonsbehindthisstrangedevelopmenttrajectorybyanalyzingthesecurity,political,legislativeandeconomicfactorsaffectingbilateralspacecooperation.ItalsotriestoanalyzetheprospectofSino-USspacecooperationinPresidentTrump'sterm.

简介：Reactioncontrolsystem(RCS)isapowerfulandefficientactuatorforspacevehiclesattitudecontrol,whichistypicallycharacterizedasapulsedunilateraleffectoronlywithtwostates(off/on).Alongwithinevitableinternaluncertaintiesandexternaldisturbancesinpractice,thisinherentnonlinearcharacteralwayshindersspacevehiclesautopilotfrompursuingprecisetrackingperformance.Comparedtomostofpre-existingmethodologiesthatpassivelysuppresstheuncertaintiesanddisturbances,adesignbasedonpredictivefunctionalcontrol(PFC)andgeneralizedextendedstateobserver(GESO)isfirstlyproposedforthree-axisRCScontrolsystemtoactivelyrejectthatwithnorequirementforadditionalfuelconsumption.ToobtainahighfidelitypredictivemodelonwhichtheperformanceofPFCgreatlydepends,thenonlinearcouplingmultiple-inputmultiple-output(MIMO)flightdynamicsmodelisparameterizedasastate-dependentcoefficientform.Andbasedonthat,aMIMOPFCalgorithminstatespacedomainforaplantofarbitraryordersisdeducedinthispaper.Theinternaluncertaintiesandexternaldisturbancesarelumpedasatotaldisturbance,whichisestimatedandcancelledtimelytofurtherenhancetherobustness.Thecontinuouscontrolcommandsynthesisedbyabovecontroller-rejectortandemisfinallymodulatedbypulsewidthpulsefrequencymodulator(PWPF)toon-offsignalstomeetRCSrequirement.Therobustnessandfeasibilityoftheproposeddesignarevalidatedbyaseriesofperformancecomparisonsimulationswithsomeprominentmethodsinthepresenceofsignificantperturbationsanddisturbances,aswellasmeasurementnoise.

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简介：河口的分布给溶解有机物(CDOM)涂颜色是physicalbiogeochemical过程的联合结果。遥感动态地高度被需要到监视器河口CDOM。从四季节的巡航在situ数据使用，一个算法被开发在400nm估计CDOM吸收系数(在Zhujiang(珀尔河)的CDOM(400))河口(ZJE)。Rrs(667)/Rrs(443)和Rrs(748)/Rrs(412)。由使用它在水上节制分辨率成像分光辐射函数从2002～2014的卫星(MODIS/Aqua)数据，季节的气候学在ZJE的CDOM(400)被计算。CDOM分布主要地走水路被影响来自Zhujiang河的分泌物并且在水下地形学。沿着对一个水深度坡度垂直的节，季节CDOM(400)指数地减少了(y=aebx,b<0)，但是与在季节之中的大差别。河流的新鲜的水是在ZJE的CDOM的主要来源。有增加咸度的Fulvic酸部分减少。用发达算法，保守CDOM混合方程，和河分泌物，在从2002～2014的夏天和冬季的溶解的器官的碳(文档)的有效河流的结束成员集中和流动首先从MODIS/Aqua数据被估计。两有效河流的结束成员文档集中和流动是断然与河有关排出，显著地在有为集中的0.698的R2的夏天并且0.9657为流动。

简介：Hengduan山为许多生态的服务提供陆地空间。然而，陆地空格的持续开发和管理被增加的人的活动在最近的年里质问了。这份报纸在不同高度执行各种各样的风景的量、结构的变化的空间模式分析，并且在1990，2000，2010和2015使用陆地使用数据揭示各种各样的陆地模式怎么变化了。结果证明在production-living-ecological空间纲要以内，生态的空间统治Hengduan山，当生产和生活空间主要在南方区域被散布时。在1990-2015期间，production-living-ecological空间变化逐渐地被加速了，地区性的差别变得更突出。农业生产空间连续地由1132.31km2,减少了并且工业并且采矿生产空间很快在1990-2015期间由281.4km2增加了。生活空间稳定地增加了，并且生态的空间与变化增加了。在Hengduan山的陆地空间模式被地面极大地限制，例如高度和斜坡。到福雷斯特节目的中国西方的发展策略和回来的农田的实现有利地支持了土地的变化在Hengduan山的空间模式。

简介：Weintroduceaone-stepimplicititerativemethodfortwofinitefamiliesofasymp-toticallynonexpansivemappingsinahyperbolicspaceanduseittoapproximatecommonfixedpointsofthesefamilies.Theresultspresentedinthispaperarenewinthesettingofhyperbolicspaces.Ontop,thesearegeneralizationsofseveralresultsinliteraturefromBanachspacestohyperbolicspaces.Attheendofthepaper,wegiveanexampletovalidateourresults.

简介：旅游形象作为旅游管理重要研究分支，影响着旅游者感知、决策行为，引导着目的地管理、营销模式。基于1986-2017年CNKI中文知网站收录的旅游形象研究文献，利用CiteSpace可视化分析工具，绘制相关知识图谱，探析旅游形象发展脉络及演化动向。结果表明：旅游形象研究领域存在核心群，围绕核心群形成四大合作网络；高校是旅游形象研究的中坚力量，机构间合作现象不明显，形成小聚集大分散分布态势；国内旅游形象研究以城市旅游形象、目的地旅游形象、旅游资源为依托，研究形象定位、形象设计、形象塑造、形象传播、形象感知及品牌形象等热点问题；旅游形象研究经历萌芽、初探、发展及井喷四个时期，不同时期研究侧重不同；未来，理论创新、方法科学是旅游形象研究需要突破的难题。

简介：DataobtainedbyGRACE(GravityRecoveryandClimateExperiment)havebeenusedtoinvertfortheseismicsourceparametersofmegathrustearthquakesundertheassumptionofeitheruniformslipoveranentirefaultorapoint-likeseismicsource.Herein,wefurtherextendtheinversionofGRACElong-wavelengthgravitychangestoheterogeneousslipdistributionsduringthe2011Tohokuearthquakeusingthreefaultmodels:(I)aconstant-strikeandconstant-dipfault,(II)avariabledipfault,and(III)arealisticallyvaryingstrikefault.Byremovingthepost-seismicsignalfromthetimeseries,andtakingtheeffectofoceanwaterredistributionintoaccount,weinvertforslipmodelsI,II,andIIIusingco-seismicgravitychangesmeasuredbyGRACE,de-stripedbyDDK3decorrelationfilter.Thetotalseismicmomentsofourslipmodels,withrespectivevaluesof4.9×1022Nm,5.1×1022Nm,and5.0×1022Nm,aresmallerthanthoseobtainedbyotherstudiesrelyingonGRACEdata.Theresultingcentroidsarealsolocatedatgreaterdepths(20km,19.8km,and17.4km,respectively).BycombiningonshoreGPS,GPS-Acoustic,andGRACEdata,weobtainajointlyinvertedslipmodelwithaseismicmomentof4.8×1022Nm,whichislargerthantheseismicmomentobtainedusingonlytheGPSdisplacements.Weshowthattheslipinvertedfromlowdegreespace-bornegravimetricdata,whichcontainsinformationattheoceanregion,isaffectedbythestrikeofthearcuatetrench.Thespace-bornegravimetricdatahelpusconstrainthesourceparametersofamegathrustearthquakewithintheframeofheterogeneousslipmodels.

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