简介：ＣＬＩＮＩＣＡＬＩＮＦＯＭＡＴＩＯＮＡＮＤＭＥＴＨＯＤＳＴｈｅ４２ｏｒｇａｎｉｃｐｈｏｓｐｈｏｒｕｓｐｏｉｓｏｎｅｄ，１６ｍａｌｅａｎｄ２６ｆｅｍａｌｅ，ａｇｅｄ１８～６１，ｈａｖｅａｎａｖｅｒａｇｅｏｆ３４．６ｙｅａｒｓ．Ｔｈｅｔｏｘｉｃａｎｔａｒ...

简介：Anewmethodisdescribedfortheelectrolessdepositionofcopperontoglass.Commerciallyavailableglassslidewasmodifiedwithγ-aminopropyltrimethoxysilanetoformself-assembledmonolayer(SAM)onit.ThenitwasdippeddirectlyintoPdCl2solutioninsteadoftheconventionalSnCl2sensitizationfollowedbyPdCl2activation.ExperimentalresultsshowedthatthePd^2+ionsfromPdCl2solutionwerecoordinatedtotheaminogroupsontheglasssurfaceresultingintheformationofN-Pdcomplex.Inanelectrolesscopperbathcontaininaformaldehydereducingagent,theN-PdcomplexeswerereducedtoPd^0atoms,whichthenactedascatalystsandinitiatedthedepositionofcoppermetal.AlthoughthecopperdepositionrateonSAM-modifiedglasswasslowatthebeginning,itreachedtothatofconventionalmethodinabout5min.

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简介：Wedemonstrateanelectric-controlledterahertz(THz)modulatorwhichcanbeusedtorealizeamplitudemodulationofterahertzwaveswithslightphoto-doping.TheTHzpulsetransmissionwasefficientlymodulatedbyelectricallycontrollingthemonolayersilicon-baseddevice.Themodulationdepthreached100%almostwhentheappliedvoltagewas7Vatanexternallaserintensityof0.6W/cm2.Thesaturationvoltagereducedwiththeincreaseofthephoto-excitedintensity.InaTHzcontinuouswave(CW)system,asignificantfallinbothTHztransmissionandreflectionwasalsoobservedwiththeincreaseofappliedvoltage.ThisreductionintheTHztransmissionandreflectionwasinducedbytheabsorptionforelectroninjection.Theresultsshowthatahigh-efficiencyandhighmodulationdepthbroadbandelectric-controlledterahertzmodulatorinapureSistructurehasbeenrealized.

简介：Asynthesisofcrustalthicknessestimateswasmaderecentlyutilizingavailablefield,geochemical,seismicity,shearwavevelocityandgravitydatainthePhilippines.TheresultsshowthatasignificantportionofthePhilippinearchipelagoisgenerallycharacterizedbycrustwithathicknessofaround25to30kilometers.However,twozones,whicharemadeupofathickercrust(from30to65km)havealsobeendelineated.TheLuzonCentralCordilleraregionischaracterizedbythickcrust.AnotherbeltofthickenedcrustisobservedintheBicol-Negros-Panay-CentralMindanaoregion.ThispaperexaminestheinterplayoftectonicandmagmaticprocessesandtheirroleinmodifyingPhilippinearccrust.Theprocesses,whichcouldaccountfortheobservedcrustalthicknesses,arepresented.Thecontributionsofmagmaticarcsascomparedtothecontributionoftheemplacementandaccretionofophiolitecomplexestocrustalthicknessarealsodiscussed.

简介：Inthispaper,awavelet-filteredgenetic-neuro-fuzzy(WGNF)controlsystemdesignframeworkforresponsecontrolofahighwaybridgeundervariousearthquakeloadsisdiscussed.TheWGNFcontrollerisdevelopedbycombiningfuzzylogic,discretewavelettransform,geneticalgorithms,andneuralnetworksforuseasacontrolalgorithm.ToevaluatetheperformanceoftheWGNFalgorithm,itistestedonahighwaybridgeequippedwithhydraulicactuators.Itcontrolstheactuatorsinstalledontheabutmentsofthehighwaybridgestructure.Variousearthquakesusedasinputsignalsincludeanartificialearthquake,theEl-Centro,Kobe,NorthPalmSprings,TurkeyBolu,Chi-Chi,andNorthridgeearthquakes.ItisprovedthattheWGNFcontrolsystemiseffectiveinmitigatingthevibrationofthehighwaybridgeunderavarietyofseismicexcitation.

简介：RoutingprotocolsplayanimportantroleintheInternetandthetestrequirementsarerunningup.Totestroutingprotocolsmoreefficiently,severalenhancingtechniquesareappliedintheprotocolintegratedtestsystemdescribedinthispaper.TheImplementationUnderTestismodeledasablackboxwithwindows.Thetestsystemisendowedwithmultiplechannelsandmultipleportstotestdistributedprotocols.Thetestsuiteandotherrelatedaspectsarealsoextended.Meanwhile,thepassivetestingisintroducedtotest,analyzeandmanageroutingprotocolsintheproductionfield,whichisabletoperformtheconformancetest,theinteroperabilitytestandtheperformancetest.Thestatemachineofpeersessionsistestedwiththestatesynchronizationalgorithm,andtheroutinginformationmanipulationandotheroperationsarecheckedandanalyzedwiththemethodslikethetopologyanalysisandtheinternalprocesssimulation.Withboththeactivetestingandthepassivetesting,theroutingprotocoltestisgoingfurtherandmorethoroughlyandhelpsalotinthedevelopmentofrouters.

简介：Althoughtheperformanceofmembranereactors(MR)ishighlyaffectedbytheratioofmembranearea-toreactionvolume,therearefewstudiesonthiseffectowingtothedifficultiesassociatedwithreactormanufacture.Inthisstudy,anMRwithhighA/Vratio,adiameterof35m,andaheightof0.8mmwasfabricated.SeparationperformanceofthisMRwasinvestigatedinann-butanol/watersystem.Esterificationofaceticacidandn-butanolwasusedasthemodelreactiontoinvestigatetheperformanceofcatalyticallyactivemembranereactors(CAMR)withdifferentA/Vratios.Thereactionconversionwas38.59%intheCAMRwiththehighA/Vratioof12,497/m,whichwasmuchhigherthanthatinotherCAMRs,forreactiontimeof60minandW/Vfratioof0.093g/mL.ExcellentcatalyticstabilityoftheCAMRwasconfirmedbyperforminglong-termstabilityexperiments.

简介：Objective:ToinvestigatethepossiblepresenceofanactiveeffluxsysteminresistancetofluoroqninolonesinMycoplasmahominis.Methods:TheresistantstrainsofM.hominiswereselectedfromonehundredandthreeclinicalstrainsofM.homlnlsbybrothmicrodilutionmethod.Theac-cumulationofciprofloxacininM.hominisandthein-fluenceofcarbonylcyanidem-chlorophenyl-hydrazone(CCCP)andreserpineweremeasuredbyafluores-cencemethod.Results:TworesistantstrainsandtwosusceptiblestrainsofM.hominiswereselectedinvitro.Theaccu-mulationofciprofloxacinforresistantstrainsislowerthanthatofsusceptiblestrains.CCCPandreserpinehaddifferentinfluenceonclinicalstrainsofM.hominis.Reserpinecoulddramaticallyincreasetheaccumulationofciprofloxacin,howeverCCCPhadalittleeffectonit.Conclusion:Theseresultssuggestthatthepres-enceofanactiveeffluxsystemimplicatedinthefluoroouinolones-resistantinM.hominis.

简介：Theresearchworkonpreparationprocessofactivematerialsoftherareearthionselectiveelectrodesandthevalenceoftheelectrodemembranewerereported.Theactivematerialswerechacterizedbyinfraredspectrum,elementalanalysisandXPS.Wehadstudiedtherareearthionselectiveelectrodesinwhichtheactivematerialsconsistoffunctionalpolymers.Inthispaper,theresearchworkonpreparationprocessandthevalenceoftheelectrodemembranewerereported,whichhasnotbeenseeninliteratureyet.

简介：Accordingtothepracticeofurbanactivefaultexplorationandassociatedfaultactivityassessmentconductedinrecentyears,thispapersummarizestheproblemsencounteredingeological,geomorphological,geochemicalandgeophysicalsurveys,andproposesthefollowingmeansandsuggestionstosolvetheseproblems.Todeterminethemostrecentfaultsorfaultzones,emphasisshouldbeplacedonidentifyingtheyoungestactivefaultsandoffsetgeomorphology.Tounderstandthehistoryoffaultingandtodiscoverthelatestoffsetevent,itissuggestedthatgeophysicalprospecting,drillingandtrenchingbeconductedononeprofile.BecauseofsignificantuncertaintiesinlateQuaternarydating,weadvisesystematicsamplingandtheuseofmultipledatingmethods.Shallowseismicreflectionhasbeenproventobethemostusefulmethodinurbanactivefaultexploration.However,thereisapressingneedtoincreasethequalityofdataacquisitionandprocessingtoobtainhighresolutionimagessoastoenhanceourabilitytoidentifyactivefaults.ThecombinationofseismicP-wavereflectionandS-wavereflectionmethodsisprovedtobeapowerfulmeanstoinvestigatethetectonicenvironmentsofthedeepcrust.

简介：有多重时间延期的一个灵活伸臂盘子的活跃控制用分离最佳的控制方法被调查。有多重时间延期的一个控制器被介绍。在这个控制器，时间延期效果在整个控制设计和没有近似在动态系统的数学模型被合并，假设在控制器推导被做，因此系统稳定性容易被保证。而且，这个控制器为两小时间延期和大时间延期是可得到的。建议控制器的可行性和效率这份报纸最后通过数字模拟被验证。

简介：hePhotocatalyticcharacterizationofTiO2supportedonactivecarbonwasinvestigatedforphotocatalyticdecompositionofdichloroaceticacid.ItwasfoundthatTiO2/ACexhibitedahigherphotocatalyticactivitythanpureTiO2.ThereasonisthatactivecarbonactingaspowerfuladsorbentsupportsmakeshighconcentrationenvironmentsoforganicpollutantmoleculesaroundTiO2particles.

简介：Themodeloflinearfrequencymodulationcontinuouswave(LFMCW)appliedinunderwaterdetectionandthemethodforthedetectionofechosignalandtheestimationoftargetparameterswerestudied.Byanalyzingtheheterodynesignal,analgorithmwiththestructureofheterodyne-FractionalFourierTransform(FRFT)wasproposed.Toreducethecomputationofsearchingtargetsinatwo-dimensionalFRFTresult.theheterodynesignalwouldbeprocessedbyFRFTataspecificorder,afterRadon-AmbiguityTransform(RAT)wasappliedtoccstimatethesweeprateofthesignal.SimulationsprovedthatthealgorithmcaneliminatethecouplingphenomenonofdistanceandvelocityofLFMCW,andestimatetargets’parametersaccurately.ThelaketrialresultsshowedthattheprocessinggainofLFMCWprocessedbythealgorithminthispaperwas13dBbetterthanthatoftheLFMprocessedbymatchedfilter.TheresearchresultsindicatedthatthealgorithmappliedinLFMCWunderwaterdetectionwasfeasibleandeffective,anditcouldestimatetargets’parametersaccuratelyandobtainagooddetectionperformance.

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简介：Baker'syeastmediatedreductionofopticallyactivediketoneisdescribed.Thetwoketogroupsareefficientlydifferentiatedandtheeevalueoftherecoveredmaterialisconsiderablyraised.Itaffordshighlyopticallyactivekeyintermediatesefficientlyforthesynthesisofnaturalpolyhydroxylatedagarofuranproducts.

简介：分别地，发生在北京和天津的二下得很大的冰雹被调查，主要基于系统dAlerteFondre同等InterferometricRadioelecctrique(SAFIR3000)观察的全部的闪电数据，一个CG闪电地点系统的cloud-to-ground(CG)闪电数据，并且一架Doppler雷达的回响数据。两下得很大的冰雹展出了二座闪电频率山峰：第一在hailfall前，第二在hailfall以后，与比第一大的第二座山峰。CG闪电的主导的极性在在第一座频率山峰附近的阶段是积极的，但是改变了到在在第二座频率山峰附近的阶段否定。雷达回响的进化和闪电放射来源的高度分发被探索，表明下得很大的冰雹有更强壮的传送对流，主要正电荷发生在在在第一座频率山峰附近的阶段期间的中间的层次。然而，虽然北京下得很大的冰雹经历了传送对流的改进，与在在第二座频率山峰附近的上面的层次的主要正电荷，当传送对流不停地变弱，主要正电荷落下到中间降低层次时，天津下得很大的冰雹在时期期间产生了它的第二座频率山峰。通过雷达参数的评估，我们调查为活跃闪电分泌物的第二个阶段负责的机制。而且，闪电活动与雷达回响参数和hailfall展出了一种靠近的关系。闪电跳信号在hailfall前被发现并且与1.87ogic网孔在15tions上面与40-dBZ回响卷的变化比率被联系如果反对???？？

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简介：Manynaturalproductscontainγ-lactonemoieties.Forexample,β-methyl-γ-butyl-γ-lactones(quercuslactones)aregradientsofagedwhiskey,andβ-methyl-γ-(3-methyl-2-butenyl)-γ-lactone(eldanolide)isapheromoneoftheAfricansugarcaneborer.Wesynthesizedsuchγ-lactonesbyhydrolysesofthehomoallylicalcoholsobtainedbyadditionofaldehydestotheallylicanionsgeneratedfromketenedithioacetalsor2-propenyl-1,3-dithiane.

简介：Basingonthestatevariablemethod,ablockdiagramofthecurrent-modebiquadactivecircuitwasproposed,whoseintegratorswererealizedusingthreekindsofactiveelementssuchasoperationalamplifier,secondgenerationcurrentconveyorsandoperationaltransconduc-tanceamplifiers-electriccapacity.Thecharacteristicsofeachcircuitwereanalyzed.