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简介：TheauthorsconsiderthescatteringphenomenaofthedefocusingH~s-criticalNLS.ItisshownthatifasolutionofthedefocusingNLSremainsboundedinthecriticalhomogeneousSobolevnormonitsmaximalintervalofexistence,thenthesolutionisglobalandscatters.

简介：Thepaperdescribesapermeametertestmethodfordeterminationofthehydraulicconductivity(AT)alongmulti-directionsinfluvialsedimentswithcrossbeddings.Unlikeexistingin-situpermeametermethodsthatdeterminehydraulicconductivityforsubmergedstreambeds,ourmethodwasintendedtomeasurehydraulicconductivityofexposedstreambedsorfluvialsediments.ThemethodwasappliedtotheWeiRiver,ShaanxiProvince,CentralChinaforcharacterizationoftheanisotropyofKinawell-sortedfluvialsediment.Theresultsillustratedthateveninwell-sortedsediments,cross-beddingandsedimentfabrication(ortexture)canleadtovariedKvaluesalongdifferentmeasurementdirections.TheKvaluewasthelargestalongthedipdirection(orthemajordirection)thatisparalleltotheorientationofcrossbeddingandthesmallestinthedirectionperpendiculartothebedding(ortheminordirection).TheKvalueinagivendirectionbetweenthemajorandminordirectionoftenfellintherangeboundedbytheKvaluesinthemajorandminordirections.TheanisotropyratioofK(theratioofKvaluebetweenthemajorandminordirections)intwotrenchesforthiswell-sortedfluvialsedimentwasupto1.14to1.23,respectively.Ourresultsalsodemonstratedthatevenforwell-sortedsediments,theKvaluesbetweentwosamplingpointsonlyabout10cmapartcandiffer.ItisclearthattheKdistributionstronglycorrelatestothebeddingorientation.

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简介：Heatflowisinevitablyaccompaniedbytemperaturechange,thus,thewatertemperaturecoseismicresponseduringearthquakeactivityshouldalsoobeythelawsofthermodynamics.TakingtheMS8.0Wenchuan,Sichuan,ChinaearthquakeandtheM9.0Tohoku,Japanearthquakeasanexample,andbasedonthedataofwatertemperaturecoseismicresponsesobservedinwellZK26inHaikou,HainanProvince,China,weinvestigatetherelationshipbetweenwellwatertemperaturechangeandheattransferinthecoseismicresponseprocessandtherelevantthermodynamicmechanismbyusingthenumericalsimulationmethodforthermodynamicequations.Then,throughforwardmodeling,weobtainseveralsimulationcurvesofwatertemperaturechangeinresponsetoearthquakesalongthewelldepthatdifferenttimes.Thesimulatedcurvesofwatertemperaturechangeapproximatelyfittheobservedcurves.Consequently,basedonthevariationoftemperature,wefindthatthemodesofwellwatertemperaturecoseismicresponse(ascending,descendingorstable)arerelatedtofactorssuchasthelocationofsensors,distributionandlocationofheatsources,thespanbetweensensorsandheatsources.

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