简介：在网络的社区察觉在最后十年广泛地被学习了。许多标准，表示分区的质量获得，以及一些准确算法和很多启发规则被建议了。吝啬标准在最小化增加或从给定的网络搬迁了以便把它转变成一套disjoint派系的边的数字在于。最近，张，丘和张建议了一个重量系数在被介绍平衡插入并且删除的边的数字的一个加权的吝啬模型。这些作者建议规则选择系数的好值，使用模仿了退火发现最佳或在最佳附近的解决方案并且解决一系列真实、人工的例子。在现在的纸，一个算法为确切为参数的所有价值解决加权的吝啬问题被建议。这个算法反复地基于用一个排产生算法为参数的一套给定的价值解决这个问题。这个过程与一个搜索过程被相结合发现值曲线的所有最低断点即，插入并且删除的边的加权的和。从文学的一系列人工、真实的世界网络上的计算结果被报导。看来，为一样的几个分区联网可能增进知识并且解决方案的集合通常包含至少一个直觉地呼吁的分区。

简介：Forfacedetectionundercomplexbackgroundandillumination,adetectionmethodthatcombinestheskincolorsegmentationandcost-sensitiveAdaboostalgorithmisproposedinthispaper.First,byusingthecharacteristicofhumanskincolorclusteringinthecolorspace,theskincolorareainYCbCrcolorspaceisextractedandalargenumberofirrelevantbackgroundsareexcluded;thenforremedyingthedeficienciesofAdaboostalgorithm,thecost-sensitivefunctionisintroducedintotheAdaboostalgorithm;finallytheskincolorsegmentationandcost-sensitiveAdaboostalgorithmarecombinedforthefacedetection.Experimentalresultsshowthattheproposeddetectionmethodhasahigherdetectionrateanddetectionspeed,whichcanmoreadapttotheactualfieldenvironment.

简介：Inthescenariowherethedarkmatter(DM)particlesχχˉpairannihilatethrougharesonanceparticleR,theconstraintfromDMrelicdensitymakesthecorrespondingcrosssectionforDM-nucleielasticscatteringextremelysmall,andcanbebelowtheneutrinobackgroundinducedbythecoherentneutrino-nucleiscattering,whichmakestheDMparticlebeyondthereachoftheconventionalDMdirectdetectionexperiments.WepresentanimprovedanalyticalcalculationoftheDMrelicdensityinthecaseofresonantDMannihilationfors-andp-wavecasesandinvesitgatetheconditionfortheDM-nucleiscatteringcrosssectiontobeabovetheneutrinobackground.WeshowthatinHiggs-portaltypemodels,forDMparticleswiths-waveannihilation,thespin-independentDM-nucleusscatteringcrosssectionisproportionaltoΓR/mR,theratioofthedecaywidthandthemassofR.ForatypicalDMparticlemass～50GeV,theconditionleadstoΓR/mR≥O(10-4).Inp-waveannihilationcase,thespin-independentscatteringcrosssectionisinsensitivetoΓR/mR,andisalwaysabovetheneutrinobackground,aslongastheDMparticleislighterthanthetopquark.TherealsingletDMmodelisdiscussedasaconcreteexample.

简介：交通灯察觉和识别为在城市的环境的自治开车是必要的。一个照相机基于算法因为即时柔韧的交通灯察觉和识别被建议，并且特别为自治车辆设计了。尽管当前的可靠交通灯识别算法操作在进行中的井，他们中的大多数主要在一个固定位置为察觉被设计，在真实世界的条件下面的自治车辆上的效果仍然是有限的。一些方法在自治车辆上完成高精确性，但是没有高精确的priori地图的帮助，他们不能通常工作。作者为这个问题介绍了一个基于照相机的算法。处理流动的图象能被划分成三步，包括预处理，察觉和识别。第一，red-green-blue(红绿蓝)颜色空间作为预处理的主要内容被变换成hue-saturation-value(HSV)。在察觉步，同时，先验的颜色阀值方法被用于起始的过滤优先的知识被执行扫描景色以便快速建立候选人区域。为识别，面向的坡度(公猪)的这张文章使用直方图展示并且也支持向量机器(SVM)认出交通灯的状态。我们的自治车辆上的建议系统被评估。与投票的计划，建议罐头在城市的enviroment为自治车辆提供足够的精确性。

简介：Cancercellsdifferfromnormalcellsinvariousparameters,andthesedifferencesarecausedbygenomicmutationsandconsequentialalteredgeneexpression.Thegeneticandfunctionalheterogeneityoftumorcellsisamajorchallengeincancerresearch,detection,andeffectivetreatment.Assuch,theuseofdiagnosticmethodsisimportanttorevealthisheterogeneityatthesingle-celllevel.Dropletmicrofluidicdevicesareeffectivetoolsthatprovideexceptionalsensitivityforanalyzingsinglecellsandmolecules.Inthisreview,wehighlighttwonovelmethodsthatemploydropletmicrofluidicsforultrasensitivedetectionofnucleicacidsandproteinmarkersincancercells.Wealsodiscussthefuturepracticalapplicationsofthesemethods.

简介：

简介：在这个工作，新奇bisbenzimidazolylpyridine-functionalized荧光灯环氧基树脂树脂为organophosphate杀虫剂被综合察觉。环氧基树脂树脂被Fourier变换红外线的光谱学(英尺红外)描绘，质子原子磁性的回声光谱学(1HNMR)，胶化浸透层析(GPC)，微分扫描热量测定(DSC)和荧光光谱学。在与Eu(III)离子装载以后，环氧基树脂树脂显示出强壮的荧光排出物。当暴露了在答案跟踪diethylchlorophosphate的数量时，荧光排放被观察即刻地被熄灭。熄灭常数K为在617 熄灭的sv；nm决心是0.377 ；× ；103 L/mol。这敏感熄灭排放的功能和聚合支持的容易的处理自然使树脂能是organophosphates的察觉的一个有希望的chemosensor候选人。

简介：Inunderwateropticalwirelesscommunication(UOWC),achannelischaracterizedbyabundantscattering/absorptioneffectsandopticalturbulence.MostpreviousstudiesonUOWChavebeenlimitedtoscattering/absorptioneffects.However,experimentsintheliteratureindicatethatunderwateropticalturbulence(UOT)cancauseseveredegradationofUOWCperformance.Inthispaper,wecharacterizeanUOWCchannelwithbothscattering/absorptionandUOTtakenintoconsideration,andaspatialdiversityreceiverscheme,sayasingleinput–multiple-output(SIMO)scheme,basedonalight-emitting-diode(LED)sourceandmultipledetectorsisproposedtomitigatedeepfading.TheMonteCarlobasedstatisticalsimulationmethodisintroducedtoevaluatethebit-error-rateperformanceofthesystem.Itisshownthatspatialdiversitycaneffectivelyreducechannelfadingandremarkablyextendcommunicationrange.

简介：因为它的吸引人的表演，超导的nanowire单身者光子察觉者(SNSPD)在极端紫、可见、在红外线附近的波长引起许多注意，并且它能在量信息技术是普遍的。然而，怎么增加罐头戏剧性地增加SNSPD的量效率的吸收仍然是一个顶研究问题。在这研究，洞综合的SNSPD的光吸收比上的事件媒介和洞材料的效果系统地用有限元素的方法被调查。模拟结果为光子表明那极化的平行到nanowire取向尽管nanowire的最大的吸收比对洞材料感觉迟钝，事件媒介的折射索引什么时候减少，确实增加。为垂直地极化的光子，事件媒介和洞材料起重要作用，并且吸收比曲线作为洞材料增加的折射索引接近平行案例。把结果基于这些，有能为平行、垂直的光子提高吸收比的前面照明结构的二洞综合的SNSPD被建议。最后，与高吸收比认识到极化无关的SNSPD的一个图案被介绍。

简介：Inthispaper,quartzcrystalmicrobalance(QCM)gassensorscoatedwithpolyehtyleneimine(PEI)wasutilizedforcarbondioxide(CO2)detection.Thesensingmechanismisbasedontheavailabilityofreversibleacid-basereactionsbetweenCO2moleculesandPEIatroomtemperature.TheexperimentalresultsrevealedthatthePEI/starchsensorexhibitedmuchhighersensitivitythanthatofpurePEI,andshowedapproximatelinearityoveraconcentrationregionrangingfrom500ppmto8000ppm.Theinfluenceofhumidityhadalsobeeninvestigated.Furthermore,theresponseandrecoverytimedeceasedastheoperationtemperaturesincreased.Finally,sensitivitylossafterconservationforseveraldaysandreversibilityofthesensorshadbeendiscussed.

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简介：Background:Monitoringthechangingpatternofvegetationacrossdiverselandscapesthroughremotesensingisinstrumentalinunderstandingtheinteractionsofhumanactivitiesandtheecologicalenvironment.LandusepatterninthestateofHimachalPradeshintheIndianWesternHimalayashasbeenundergoingrapidmodificationsduetochangingcroppingpatterns,risinganthropogenicpressureonforestsandgovernmentpolicies.WestudiedlandusechangeinSolanForestDivisionofHimachalPradeshtoassessspecieswiseareachangesintheforestsoftheregion.Methods:Thesupervisedclassification(Maximumlikelihood)ontwodatesofIRS(LISSIII)satellitedatawasperformedtoassesslandusechangeovertheperiod1998–2010.Results:Sevenlandusecategorieswereidentifiednamely,chirpine(Pinusroxburghii)forest,broadleavedforest,bamboo(Dendrocalamusstrictus)forest,banoak(Quercusleucotrichophora)forest,khair(Acaciacatechu)forest,culturableblankandcultivation.Theareaunderchirpine,cultivationandkhairforestsincreasedby191ha(4.55%),129ha(13.81%)and77ha(23.40%),whereastheareaunderbanoak,broadleaved,culturableblankandbamboodecreasedby181ha(16.58%),152ha(6.30%),71ha(2.72%)and7ha(0.47%),respectively.Conclusions:Thestudyrevealedadecreaseintheareaunderforestandculturableblankcategoriesandasimultaneousincreaseintheareaundercultivationprimarilyduetothelargescaleintroductionofhorticulturalcashcropsinthestate.Thecompositionofforestsalsoexhibitedsomemajorchanges,withanincreaseintheareaofcommerciallyimportantmonocultureplantationspeciessuchaspineandkhair,andadeclineintheareaofoak,broadleavedandbamboowhicharefacingahighanthropogenicpressureinmeetingthelivelihooddemandsofforestdependentcommunities.Intimedeforestation,forestdegradationandecologicalimbalancesduetothechangingforestspeciescompositionmayinflictirreversibledamagesuponunstableandfragilemountainzonessuchastheIndianH

简介：ECGisanimportanttoolfortheprimarydiagnosisofheartdiseases,whichshowstheelectrophysiologyoftheheart.Inourmethod,asinglematernalabdominalECGsignalistakenasaninputsignalandthematernalP-QRS-Tcomplexesoforiginalsignalisaveragedandrepeatedandtakenasareferencesignal.LMSandRLSadaptivefiltersalgorithmsareapplied.TheresultsshowedthatthefetalECGshavebeensuccessfullydetected.TheaccuracyofDaisydatabasewasupto84%ofLMSand88%ofRLSwhilePhysioNetwasupto98%and96%forLMSandRLSrespectively.

简介：Usingastrongnonlinearsaturationabsorptioneffectisonetechniqueforbreakingthroughthediffractionlimit.Inthistechnique,formationofadynamicandreversibleopticalpinholechannelandtransientsuperresolutioniscritical.Inthiswork,apump–probetransientdetectionandobservation–experimentalsetupisconstructedtoexploretheformationprocessdirectly.AGe2Sb2Te5thinfilmwithstrongnonlinearsaturationabsorptionisinvestigated.Thedynamicevolutionoftheopticalpinholechannelisdetectedandimaged,andthetransientsuperresolutionspotisdirectlycapturedexperimentally.Resultsverifythatthesuperresolutioneffectoriginatesfromthegenerationofanopticalpinholechannelandthattheformationoftheopticalpinholechannelisdynamicandreversible.Agoodmethodisprovidedfordirectdetectionandobservationofthetransientprocessofthesuperresolutioneffectofnonlinearthinfilms.

简介：Thesafetyofrailisveryimportantforthedevelopmentofhighspeedrailway,anditisnecessarytoinvestigatethefeaturesofinnercracksinrail.InordertoobtainthefeaturesofAcousticEmission(AE)sourcesofinnercracksinrail,AEsourceswithdifferenttypes,depthsandpropagationdistancesareexaminedforcrackinrail.Thefiniteelementmethodisutilizedtomodeltherailwithcracksandtheresultsofexperimentdemonstratetheeffectivenessofthismodel.WavelettransformandRayleigh-LambequationsareutilizedtoextractthefeaturesofcrackAEsources.TheresultsillustratethattheintensityratioamongAEmodescanidentifytheAEsourcetypesandtheAEsourceswithdifferentfrequenciesinrail.ThereareuniformAEmodefeaturesexistingintheAEsignalsfromAEsourcesinrailweb,howeverAEsignalsfromAEsourcesinrailheadandrailbasehavethecomplexandunstableAEmodes.DifferentAEsourcetypeshavethedifferentpropagationfeaturesinrail.ItishelpfultounderstandtherailcracksanddetecttherailcracksbasedontheAEtechnique.

简介：一个便携式的双隧道的digital/analogue混血儿占据放大器(LIA)被开发，并且当signal-to-noise比率(SNR)比12dB大时，它的振幅察觉错误是不到10%。然后，微分中间红外线的甲烷(CH4)察觉设备试验性地基于宽带白热电线来源和多传递被表明球形的反射镜。实验被执行获得设备的察觉到的表演。与仅仅4.8厘米的吸收长度，察觉(LoD)的限制是大约71.43mg/m3,，察觉范围从0mg/m3是到5.00vacancies，并且传导性是小极化子的跳跃描述的井：=0exp{29/kT}(欧姆厘米)有2m0的一个有效的团的1。thermo力量是否定的并且与温度改变很少，建议传导机制主要由于电子跳跃。分析材料在一个宽广pH范围上显示出化学稳定性；在KOH解决方案显示器的半对数的阴谋27一厘米2的交换电流密度和0.204VSCE。电容测量(C2V)展出线性行为，n类型电导率特征，从哪个0.530VSCE

简介：Redbloodcells(RBC)’flickeringpresentthedynamicpropertiesofthecytomembrane.Itscomplexitycouldbeusedforaginganalysisortheevaluationforthestoragequality.Theflickeringactivityisakindofreversibleperpendicularmotionofthespecifiedpixel.Therefore,thecomplexityanalysisdependsonthereliabledetectionoftemporalvariationforthegray-scalevaluesfromeachpixelofthecells.Inthispaper,weimprovedourpreviousworkonthescreeningofthehorizontaldriftedcellswithasurfacebasedoncellregistrationmethodandtheeffectofGSMexposuretothedynamicpropertiesoftheRBCsintermsofmulti-scalesampleentropywaspresentedinthepaper.

简介：Apreliminaryapplicationofthedigitalimagecorrelation(DIC)ispresentedaimingtodetectandanalyzecracknetworkswhichareinducedbystressesarisingduringcuringanddrying(CD)ofMgOcontainingrefractorycastableslabs.SurfaceimagesofcastablesamplesplacedinaspeciallydesignedclimaticchamberwererecordedovertheCDstageswithadigitalcameraandprocessedbytheDICtechniquetomeasurethedisplacementfields.Post-processingDICresultswerecarriedouttoestimatethelength,orientationandopeningofcracksinthenetworks.Themethodologyishighlightedandthefirstexperimentalresultsareshownpointingoutitsfuturepotentialtobetterunderstandtheeffectofthephysicalaspects(particlesize,chemicalanalysis,temperature,etc.)andthestructuralones(slabshapeandsize)onprocessingandperformanceofadvancedrefractorycastables.

简介：散布的有效提高表面的拉曼(重量的单位)底层基于银nanoparticles被开发装饰的阳极的铝氧化物(Ag/AAO)。AAO模板用一条二拍子的圆舞阳极化途径被制作，并且银nanoparticles(AgNPs)被Ag硝酸盐的热分解在AAO获得。Ag/AAO混合底层的结构被扫描电子显微镜学(SEM)描绘。结果证明同样准备的重量的单位底层与十纳米的尺寸由高密度的AgNPs组成。AgNPs在在被称为热点的网络结构形式的AAO模板的表面上被吸附。nanostructure的重量的单位改进能力作为探查分子用thiram被验证。察觉的限制象1一样低

简介：Thekeyparametersfordamagedetectionandlocalizationareeigenfrequencies,relatedequivalentviscousdampingfactorsandmodeshapes.Theclassicalapproachisbasedontheevaluationofthesestructuralparametersbeforeandafteraseismicevent,butbyusingamodernapproachbasedontime-frequencytransformationsitispossibletoquantifytheseparametersthroughoutthegroundshakingphase.InparticularwiththeuseoftheS-Transform,itispossibletofollowthetemporalevolutionofthestructuraldynamicsparametersbefore,duringandafteranearthquake.Inthispaper,amethodologyfordamagelocalizationonframedstructuressubjectedtostrongmotionearthquakesisproposedbasedonmonitoringthemodalcurvaturevariationinthenaturalfrequencyofastructure.Twoexamplesofapplicationaredescribedtoillustratethetechnique:Computersimulationofthenonlinearresponseofamodel,andseverallaboratory(shakingtable)testsperformedattheUniversityofBasilicata(Italy).Damagedetectedusingtheproposedapproachanddamagerevealedviavisualinspectionsinthetestsarecompared.