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简介：Theprincipleoffiberopticscouplingpressuresensorwithmicro-powerdissipationisintroducedaswellastheuseoftwo-waysignalsinglefibertransfer(measuresignalandreferencesignal)toconductaproportionalmeasure.Italsodiscussestheadoptedwaysforimprovingthestabilitytemperaturedriftandthenoiseofthemea-suringsystem.

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简介：Aunanoparticles(AuNPs)wereelectrodepositedatthehighlyorderedanataseTiO2nanotubearray(TiO2NA)electrodeundersonicating,andtheAuNP-TiO2NAsensorwascharacterizedbyscanningelectronmicroscope(SEM),X-rayphotoelectronspectroscopy(XPS),X-raydiffraction(XRD).ThephotoelectrochemicalexperimentsindicatetheAuNP-TiO2NAsensorhaslowerphotoelectro-resistance,higherphotoelectrocatalyticalactivityandstabilitythanthatofpureTiO2NAsensorunderthesameconditions.Theas-preparedsensorcanbeusedforthedeterminationofchemicaloxygendemand(COD)inrealsamples,andtheobtainedresultsarecomparablewellwiththoseofbystandardK2Cr2O7method.Themethodproposedissimple,fast,costeffective,andenvironmentallyfriendly.

简介：新benzoimidazole-naphthalimide衍生物4被综合，它的photophysical性质被学习。这混合物有选择地高度出现了并且敏感比色并且为氟化物阴离子的ratiometric察觉到能力。

简介：目标范围是在无线传感器网络的一个重要还挑战性的问题，特别当范围和精力限制应该被考虑时。由于它的非线性的性质，这个问题的以前的研究主要集中了于启发式的算法；理论界限仍然保持未知。而且，最流行的方法在以前的文学使用了，即，连续时间的discretization，还得被认为正当。这份报纸用二理论结果填这些差距。第一个是为方法的一个正式理由。我们使用一个简单例子说明及时转变一个解决方案的过程领域进在有一样的网络一生的模式域的一个相应解决方案并且获得二关键观察。在那以后，我们正式证明这是二观察并且把他们用作基础认为方法正当。第二结果是能保证网络一生是的一个算法至少(1-)最佳的网络一生，在此能被使任意地小取决于要求的精确。算法基于列产生(CG)理论，它把原来的问题分解成二亚问题并且反复地以接近最佳的答案的一个方法解决他们。而且，我们开发了几条建设性的途径进一步优化算法。数字结果验证我们的基于CG的算法的效率。

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简介：CunanoclusterswereelectrochemicallydepositedonthefilmofaNafion-solubilizedmulti-wallcarbonnanotubes(CNTs)modifiedglassycarbonelectrode(CNTs-GCE),whichfabricatedaCu-CNTscompositesensor(Cu-CNTs-GCE)todetectglucosewithnon-enzyme.Thelinearrangeis7.0×10-7to3.5×10-3mol/Lwithahighsensitivityof17.76μA/(mmolL),withalowdetectionlimit2.1×10-7mol/L,fastresponsetime(within5s),goodreproducibilityandstability.

简介：ForTDMAMACprotocolsinwirelesssensornetworks(WSNs),redundancyandretransmissionaretwoimportantmethodstoprovidehighend-to-endtransmissionreliability.Sincereliabletransmissionswillleadtomoreenergyconsumption,thereexistsanintrinsictradeoffbetweentransmissionreliabilityandenergyefficiency.Foreachlink,wenamethenumberofitsreservedtimeslotsineachMACsuperframeasareplicatorfactor.Inthefollowingpaper,weproposeareliability-lifetimetradeoffframework(...

简介：Theprincipleofanewopticalfibertemperaturetransducerispresented,andingeniousdesignschemeofthistransducerisgiven.Becausetakingthespecialmodulationandratiomeasurement,thisnewtransducerhasprovidedwithhighcharacteristics:experimentaltransmittingdistanceis500m;measurementerror,inthemeasuredtemperaturerangeof0-250℃，,islessthan±0.5℃;powerconsumptionoftheprobeislessthan300μW.Finally,somepointsoftheexperimentaregiven.

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简介：双光的排水量传感器被介绍与单身者相比获得更高的精确性。系统的结构和原则也被介绍，并且硬件和软件也被引进。系统的函数通过实验是可行的并且基于FPGA模仿数据进程。CLC数字TH822

简介：Geographiclocationofnodesisveryusefulinasensornetwork.Previouslocalizationalgorithmsassumethatthereexistsomeanchornodesinthiskindofnetwork,andthenothernodesareestimatedtocreatetheircoordinates.Oncetherearenotanchorstobedeployed,thoselocalizationalgorithmswillbeinvalidated.Manypapersinthisfieldfocusonanchor-basedsolutions.Theuseofanchorsintroducesmanylimitations,sinceanchorsrequireexternalequipmentssuchasglobalpositionsystem,causeadditionalpowerconsumption.Anovelpositioningalgorithmisproposedtouseavirtualcoordinatesystembasedonanewconcept-virtualanchor.Itisexecutedinadistributedfashionaccordingtotheconnectivityofanodeandthemeasureddistancestoitsneighbors.Boththeadjacentmemberinformationandtherangingdistanceresultarecombinedtogeneratetheestimatedpositionofanetwork,oneofwhichisindependentlyadoptedforlocalizationpreviously.Atthepositionrefinementstagetheintermediateestimationofanodebeginstobeevaluatedonitsreliabilityforpositionmutation;thusthepositioningoptimizationprocessofthewholenetworkisavoidedfallingintoalocaloptimalsolution.Simulationresultsprovethatthealgorithmcanresolvethedistributedlocalizationproblemforanchor-freesensornetworks,andissuperiortopreviousmethodsintermsofitspositioningcapabilityunderavarietyofcircumstances.

简介：Thispaperpresentsadatafusionmethodindistributedmulti-sensorsystemincludingGPSandINSsensors'dataprocessing.First,aresidualχ2-teststrategywiththecorrespondingalgorithmisdesigned.Thenacoefficientmatricescalculationmethodoftheinformationsharingprincipleisderived.Finally,thefederatedKalmanfilterisusedtocombinetheseindependent,parallel,real-timedata.Apseudolite(PL)simulationexampleisgiven.

简介：Athiourea-basedtripodalcolorimetricanionsensorwassynthesized.ItsbindingabilitieswithAcO^-andhalideanionsinDMSOwerestudiedbyUV-Visspectra.Thesensorshoweddifferentcolorresponsestotheseanions.Theassociationconstantsanddifferentstoichiometrieswerededucedbynonlinearleast-squarecurvefittingorlinearfitting.

简介：Basedonthesensingmechanismofmicrosensor,asimulationmodelofapracticalsiliconbeamresonatorattachedtoanE-typerounddiaphragmandusedformeasuringconcentratedforceisestablished.Therelationshipbetweenthebasicnaturalfrequencyofthebeamresonatorandtheconcentratedforceiscalculated,analyzedandinvestigated.AsamicrosensorFEMisusedtostudysomeimportantsimulationresultsonthevibrationfeaturesofthebeamresonators.Basedonthedifferentialoutputsignals,asetofoptimumparametersoftheproposedsensingunitisdetermined.

简介：Atemperaturesensorbasedonpolarizationnon-reciprocity(PNR)infiber-opticSagnacinterferometer(FSI)wasproposed.Theexperimentalstudywasmadeprimarilyandtheresultsagreewiththeorywell.Discussionshowsthatthiskindoftemperaturesensorcanachievehighprecisionandhavegreatapplicationpotential.

简介：Weproposeanddemonstrateanultrasensitiveintegratedphotoniccurrentsensorthatincorporatesasiliconbasedsingle-mode-multimode-single-modewaveguide(SMSW)structure.ThiskindofSMSWstructureisplacedoveradirectcurrentcarryingpowerresistor,whichproducesJoule’sheattochangethetemperatureoftheSMSWandfurtherresultsinthechangeoftheeffectiverefractiveindexbetweendifferentpropagatingmodes.Interferenceoccurswhenthemodesrecombineatthesecondsinglemodewaveguide.Finally,thecurrentvariationismeasuredbymonitoringtheshiftintheoutputspectrumofthemultimodeinterferometer.Inlowcurrent,thewavelengthshifthasalmostlineardependence:Δλ∝Ic.Thiseffectcanbeusedasacurrentsensorwithaslopeefficiencyof4.24nm/Aintherangeof0–200mA.

简介：为3的修改解调算术??????铻???鲳鶣???鰿D