简介：为了庆祝Focal发展的重要里程碑，原厂推出了Chorus826W30周年限量纪念版本，Chorus826W延续既有Chorus的造型，但细节更为精进，可说是AMG版本的Chorus。铝镁合金内凹式TNV高音单元安装在铝合金框架上，高频延伸直上28kHz。

简介：1,209earthquakesoccurredinXianyou,FujianfromAugust4,2010toOctober4,2013.ThelargestearthquakewasML5.0onSeptember4,2013.InordertostudytheXianyouearthquakesequenceandunderstandthecausativestructureandstressfieldofXianyou,thefocalmechanismsolutionsofsixearthquakes(ML>3.5)intheXianyouearthquakesequencearecalculatedusingthebroadbanddigitaldataoftheFujianSeismicNetworkwiththeseismicmomenttensorinversemethod.Theresultsshowthatthefocalfaultsofthesixearthquakesaresimilar,whichareallstrike-slipfaultsstrikingtothenorthwestwithhighdipangles.ThedirectionoftheprincipalcompressivestressaxesisnearSN,whichisdifferentfromthestressfieldofFujianregion.TheXianyouearthquakesequencemayhavebeeninducedbythestressadjustmentaftertheimpoundmentofJinzhongreservoir.

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简介：ChildsNervSyst.2008Jun18.OBJECTIVES:Despiterevolutionarytechnicaladvancementinneuroimagingandoperativeneurosurgery,surgicalextirpationoffocalbrainstemglioma(BSG)remainssteepedincontroversy.Inthisstudy,weevaluatedourseniorauthor's(CT)surgical

简介：Inthispaper,therelationshipsoftheplungesandazimuthsofTandPaxesversusthestrikes,dips,andrakesoftwoseismicnodalplaneswerederivedtoprovidereferenceforearthquakeresearchers.TheindependenceoftheplungesandazimuthsofT,B,andPaxesinfocalmechanismsolutionwasdiscussed,anditwasconcludedthatthreeparameters,i.e.,theazimuthsofT,BandPaxes,arecompletelyindependent.ThefocalmechanismsolutionrepresentationbasedonEulerrotationwasintroduced,usingthreeEuleranglesinplaceoftheplungesandazimuthsofT,B,andPaxes,andthreefocalmechanismsolutionrepresentationswerebrieflycomparedandanalyzedinrespectofaccuracyonthebasisoftheassumptionofrounding;itwasconcludedthattheEuleranglerepresentationhasbetteraccuracy,comparedwiththeazimuthrepresentationandthetraditionalrepresentationwithT,B,andPaxes.

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简介：UsingthemaximumamplituderatiosofverticalcomponentofPandSwavesrecordedbyaregionalnetwork,921focalmechanismsofDayaoearthquakedoubletsequencearedeterminedbymeansofsyntheticseismogramsofapointsourceofdislocationinaplanelayeredmedium.Amongthem,389focalmechanismsareintheaftershocksequenceofM6.2earthquakeoccurredon21July,2003andtheother532focalmechanismsareintheaftershocksequenceofM6.1earthquakeoccurredon16October,2003inDayao,Yunnan.Thefocalmechanismconsistentparameteraofthetwoaftershocksequencesarecalculatedandanalyzed.Accordingtothefocalmechanismconsistentparametera,thefocalmechanismsofthefirstaftershocksequencearemoreconsistentthanthoseofthesecond.AccordingtothecomparisonofCMTsolutionsofthetwoM6earthquakes,thephysicalmechanismofthedoubletintheintra-plateearthquakeisverycomplex,andmanyprocessesareinvolvedandinteractedwitheachother.Thisdoubletprovidesinsightsintoearthquakeclustering,triggeringandstresscycling.

简介：Anewalgorithmofnonuniformitycorrectionforinfraredfocalplanearray(IRFPA)isreported,whichisacombinedalgorithmbasedonboththetwo-pointcorrectionandartificialneuralnetworkscorrection.Thecombinedalgorithmiscalibratedbytwo-pointcorrection,andthecalibratedcorrectioncoefficientsareautomaticallymodifiedbyBPalgorithm.Soitisnotonlycalibrated,butalsoreal-timeprocessed.Inadaptivenonuniformitycorrectionalgorithm,thephenomenaghostartifactandtargetfade-outareavoidedbyedgeextraction.Inordertogetintensifiedimage,themodifiedmedianfiltersareadopted.Thesimulateddataindicatestheproposedschemeisaneffectivealgorithm.

简介：BACKGROUND:Astrocytesreactsensitivelytocerebralischemia,causingreactiveproliferationandactivation,whichmaycontributetotheireffectinprotectingorinjuringneuronalregeneration.Whetheracupuncture,asatreatmentforcerebralischemia,regulatestheactivatedstateofastrocyteshasbecomeafocusofrecentinvestigations.OBJECTIVE:Toobservetheeffectsofelectroacupuncture(EA)onultrastructurechangesandreactiveproliferationofastrocytesinthemarginalzoneoffocalcerebralischemiainrats.DESIGN,TIMEANDSETTING:Randomized,controlledanimalstudy.ThisstudywasperformedattheExperimentalAnimalCenterofGuangzhouUniversityofTraditionalChineseMedicinebetweenDecember2007andJuly2008.MATERIALS:Atotalof90maleWistarratswererandomlydividedintoshamoperated,modelandEAgroups.Eachgroupwassubdividedinto1hour,1,3,7,and21dayspost-cerebralischemiagroups,withsixanimalsforeachtimepoint.Rabbitanti-ratglialfibrillaryacidicprotein(GFAP)andgoatanti-rabbitIgG/tetramethylrhodamineisothiocyanatewereprovidedbyBeijingBiosynthesisBiotechnology.TheG-6805electricacupunctureapparatuswasprovidedbyShanghaiHuayi.METHODS:Heat-coagulation-inducedocclusionofthemiddlecerebralarterywasperformedtoestablishamodeloffocalcerebralischemia,inthemodelandEAgroups.Middlecerebralarterieswereexposedwithoutocclusioninshamoperatedgroup.EAwasappliedimmediatelyaftersurgeryintheEAgroup,4/20Hz,2.0-3.0V,1-3mA,toBaihui(GV20)andDazhui(GV14),for30minutes.Thetreatmentwasperformedonceaday.Theshamoperatedandmodelgroupsdidnotreceiveacupuncture.MAINOUTCOMEMEASURES:Inthemarginalzoneoffocalcerebralischemiainratsatdifferenttimepointsafterintervention,theultrastructurechangesofastrocyteswereobservedbyusingtransmissionelectronicmicroscopy.GFAPexpressioninastrocyteswasalsomeasuredbylaserconfocalscanningmicroscopy.RESULTS:Cellswellingandrapidproliferationofastrocytes

简介：Comprehensivestatisticalanalysiswasperformedonthebasicfeaturesoffocalmechanismsof619ML≥2.0earthquakeswhichoccurredinthecapitalcircleareafromJanuary2002toJune2010.Bydividingthecapitalareaintothreestudyingregionsbasedonregionaltectoniccharacteristics,clusteranalysiswasconductedonthefocalmechanismsofallsubregionsusingthelongestdistancemethodinthestatisticalclusteranalysistostudythecharacteristicsoftectonicstresstensors.TheresultshowsthatdominantP-axisazimuthdistributionisNNE-NEEandthatofT-axisisNNW-NWW,mostofthefocalareasarecontrolledbyahorizontalstressfieldandruptureismainlyofhorizontalstrike-slip.ThemaximumprincipalcompressionstressorientationisNE75°inthewest,NE62°inthemiddle,andnearEWintheeastofthecapitalarea.Theregionaltectonicstressfieldischaracterizedbyhorizontalcompression.

简介：这是一款入耳密闭式耳机．其耳机整体构架采用了精细研磨加工的铝合金材质，所以具有类似于喷气式发动机一样的外形，而且厂商还提供了两种不同的色款供买家选择。这款耳机采用了直径为9mm的钕磁铁驱动单元，频率响应范围是12Hz～22kHz，重量是12g，插头部分则是经过24K镀金处理的35mm插头，随机附送有S／M／L三种不同尺寸的耳塞套。

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简介：BACKGROUND:Synapsesundergohighlevelsofplasticitywithinthenervoussystem,andcerebralischemiainducessynapticplasticitychanges.OBJECTIVE:Todemonstratetheeffectsofelectroacupunctureonultrastructuralsynapticchangesinthefocalcerebralischemiamarginalzoneinratsusingquantitativeanalysisofstereologicalmeasurement.DESIGN,TIMEANDSETTING:Arandomized,controlled,animalexperimentwasperformedattheExperimentalAnimalCenterandLaboratoryofElectronMicroscopy,GuangzhouUniversityofTraditionalChineseMedicinefromJanuary2008toJanuary2009.MATERIALS:TheG-6805electricacupunctureapparatuswasprovidedbyShanghaiHuayiInstrumentFactory,China.METHODS:Atotalof90male,Wistarratswererandomlyassignedtosham-surgery,model,andelectroacupuncturegroups,with30animalsineachgroup.Eachgroupwassubdividedinto1hour,aswellas1,3,7,and21dayspost-surgerygroups,withsixanimalsassignedtoeachtimepoint.Heatcoagulation-inducedocclusionofthemiddlecerebralarterywasperformedtoestablishamodeloffocalcerebralischemia.Electroacupuncturewasappliedimmediatelyfollowingsurgerytotheelectroacupuncturegroup[4/20Hz,2.0-3.0V,1-3mA,toBaihui(GV20)andDazhui(GV14)]for30minutes.Treatmentwasperformedonceaday,andexperimentalanimalsweresacrificed,at1hour,aswellas1,3,7and21dayspost-surgery.MAINOUTCOMEMEASURES:Atdifferenttimepointsafterintervention,changesinsynapticultrastructure,suchaspostsynapticdensitythickness,synapticcleftwidth,andsynapticinterfacecurvature,wereobservedinthefocalcerebralischemiamarginalzoneinratsthroughtheuseoftransmissionelectronicmicroscopy.RESULTS:Brokensynapseswereobservedfollowingcerebralischemia,andthenumberofsynapseswassignificantlydecreased.Comparedtothemodelgroup,synapticultrastructurewassignificantlyimprovedintheelectroacupuncturegroup.Comparedtothesham-surgerygroup,postsynapticdensitythicknesswassignificantlydecreased,asweresynaptic

简介：SeveralearthquakeswithMs≥5.0occurredintheDatongseismicregionin1989,1991and1999,TheprecisefocuslocationoftheearthquakesequencewasmadebytherecordsoftheremotesensingseismicstationnetworkinDatong.Usingthatdatatogetherwithmacro-intensitydistributionandfocalmechanismsolutions,weanalyzethedifferenceamongthreesubsequences.Theresultsshowthatthefocalfaultofthe1999Ms5.6earthquakewasaNWW-trendingleft-lateralstrike-slipfault.Itis16kmlongand12kmwide.Itdevelopedatthedepthof5kmandisnearlyverticalindip.Thetwopreviousearthquakesubsequences,however,weregeneratedbyactivityalongNNE-trendingright-lateralstrike-slipfault.Itcanbefoundthattherupturedirectioinofthe1999earthquakehaschanged.Itisgenerallyfoundthatarupturezonehasmorethantwodirectionsandhasdifferentstrengthalongthesetwodirections.Thecomplicatedegreeoffocalcircumstanceisrelatedtothetypeofearthquakesequences.ThereistheNE-trendingDawangcunfaultandtheNW-trendingTuanbufaultintheseismicregion,butnoproofindicatesaconnectionbetweenfocalfaultsandthesetwotectonicfaults.Thefeaturethatfocalfaultsofthreesubsequencesarestrike-slipisdifferentfromthatofthetwotectonicfaults.Itissuggestedthatthe1999earthquakesubsequencewaspossiblygeneratedbyanewrupture.

简介：Weselectedthe103ML≥2.5earthquakewaveformdatafromtheInnerMongolia-Ningxiaborderduring2009-2015,whichwasrecordedbytheInnerMongoliaDigitalSeismicNetworksandusedthesimplexmethod,Hyposatmethod,doubledifferencelocationmethod,anddeterministicmethod(PTD)forthedeterminationoffocaldepth,andcomparedtheresults.TheCAPmomenttensorinversionmethodisusedtodeterminethefocaldepthsoftheAlxaLeftBannerM5.8andM4.2earthquakes.Thefinalresultsofthefocaldepthbythedeterministicmethod(PTD)andthedoubledifferencelocationmethodfitwellwiththetectoniccharacteristicsoftheInnerMongolia-Ningxiaborderarea,butthoseofthesimplexmethodandtheHyposatmethoddonot.TheaveragedepthoftheInnerMongolia-Ningxiaborderseismictectoniczoneis13.32±8km.

简介：AnM_S7.3earthquakeoccurredonFebruary12,2014inYutianCounty,XinjiangUygurAutonomousRegion,whichwasfollowedbyaseriesofaftershocks.ThispapercalculatesthedepthoftheM_S7.3earthquakesequencebyusingthedeterministicapproachwiththeseismicphasedatafromthecatalogdatabaseoftheChinaEarthquakeNetworksCenter,combinedwithoriginalseismicwaverecordsfromtheDigitalSeismicNetworkCenteroftheEarthquakeAdministrationofXinjiangUygurAutonomousRegion.

简介：读出集成电路(ROIC)是为混血儿综合的红外线的焦点的飞机数组(IRFPA)的最重要的部件之一。并且在结合前保证产品收益应该被测试。这份报纸论述为IRFPA的ROIC基于Labview测试系统的在晶片上。量的测量能在决定是否在这个系统有排串音以后被进行。这个便宜系统有容易的扩大的好处，升级，并且灵活性，和它在测试几种IRFPAROIC测量浸透的输出电压，不一致，黑暗噪音和动态范围的参数被采用了，等等。

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简介：ThesourceparametersoftheYingjiangearthquakesequencesin2008areobtainedbyapplyingspectralanalysisandBrunessourcemodel,basedonthedigitalwaveformdatarecordedbytheYunnanDigitalSeismicNetwork.Thecorrelationcoefficientsarecalculatedusingthelow-frequencyspectralamplitudesof2eventsrecordedbyasamestation,then,eventswithsimilarfocalmechanismaregroupedusingtheclusteringanalysismethod.Comparedtotheobtainedfocalmechanisms,itisfoundthattherearegoodcorrelationswiththeazimuthofPaxesineachclusteringgroup,andthelargerthecorrelationcoefficient,theclosertheazimuthsofPaxes.WedividetheYingjiangareainto3regionstoanalyzethestresslevelandstressdirectionbycombiningthesourceparametersandthemeanfocalmechanismofeachgroup.Theresultsshow:Thechangeandtransformationofthefocalmechanismtypesatdifferentstagescanrepresentthetemporalcharacteristicsoftheregionalstressfield.Iftheearthquakefocalmechanismtypesareconcentratedinatimeperiodandswitchtothedirectionofregionalstressfield,itmaybeasignofstrongearthquake.Thereissomerelationshipbetweenthestressdropandthetypeoffocalmechanism.Thoseearthquakeswithstressfieldsrevealedbyfocalmechanismtypesclosertotheregionaltectonicstressfieldwillhavehigherstressdrop,whilethosewiththefocalmechanism-revealedstressfieldsdifferingalotfromtheregionaltectonicstressfieldwillgenerallyhavealowerstressdrop.

简介：Aftershocksofthe2011Tohoku-Okigreatearthquakehaveawiderangeoffocaldepthsandfaultplanemechanisms.Weconstrainthefocaldepthsandfocalmechanismsof69aftershockswithMw[5.4bymodelingthewaveformsofteleseismicPanditstrailingnear-surfacereflectionspPandsP.Wefindthatthe‘‘thrustevents’’arewithin10kmfromtheplateinterface.Thedipanglesofthesethrusteventsincreasewithdepthfrom*5°to*25°.The‘‘non-thrustevents’’varyfrom60kmaboveto40kmbelowtheplateinterface.Normalandstrike-slipeventswithintheoverridingplatepointtoredistributionofstressfollowingtheprimarygreatearthquake;however,duetothespatiallyvariablestresschangeintheTohoku-Okiearthquake,anunderstandingofhowthemainshockaffectedthestressesthatledtotheaftershocksrequiresaccurateknowledgeoftheaftershocklocation.