简介：CallaghanandWhite(2009)putforwardtheautomatedwhitecapextraction(AWE)techniquetodeterminethewhitecapcoverage(W).AnimprovedAWEwasusedtoanalyzeimagescollectedintheSouthChinaSeaduring2012and2013andinwesternPacificduring2015todetermineW.Theinfluencesofmeteorologicalandoceanographicfactorsonwhitecapcoveragewereinvestigatedinthisstudy.ItisfoundthatWincreaseswithwindspeed.ScalefactorandexponentofparameterizationforW(U10)varygreatlyindifferentmodels.Overall,thereisalargerscatterofWatlowwindspeedthanathighwindspeed.Wdecreaseswiththeincreasingofwaveage.Comparedwithwindspeed,thescatterofWissmallerwithwaveage,whichmeanstheimpactofwaveageonthewhitecapcoverageismorerobustundervariousenvironmentalconditions.ThereisnosignificantdependenceonSSTandwhitecapcoverageseemstoweaklydecreasewithSST.Wdecreaseswiththeatmosphericstability.RelationshipbetweenWandwindspeedchangewhenswellsaredominant.SwellcansuppresswavebreakinganddecreaseW.Theeffectisindependentofthedeflectionanglebetweenwindwaveandswell.

简介：Phosphorus(P)isalimitedresourcethatcouldbedepleted.Consequently,recyclingthePcontainedinsewagesludge,includingsewagesludgeincinerationash(SIA),fromwastewatertreatmentplantsisapossibilitytobeexplored.Agreenhouseexperimentusingannualryegrass(LoliummultiflorumL.)wasperformedwithanexperimentaldesignofthreecompletelyrandomizedblocksoftwosoilsand29treatments:onecontrolwithoutPandtwolevelsof9and26kgtotalPha-1from14differentsources:twelveSIAs(notcontaminatedbytracemetals)fromtheUSandCanada,onecommercialsyntheticfertilizer(triplesuperphosphate(TSP)),andonecommercialrockphosphate(RP).Higherryegrassbiomasslevelswereachievedatthehigherfertilizationrate(26kgtotalPha-1)andwhenusingtheSIAswiththehighestPsolubilitypercentage(PSP)(≥54%oftotalP).ThebiomassincreasesfollowingSIAapplicationwereashighas29%and59%morethanthecontrolforthesandyloamandclayeysoil,respectively,but40%lessthaninTSPforbothsoils.AsimilarbehaviorwasobservedforPuptake,withamaximumincreaseof26%fortheclayeysoil,and165%forthesandyloamsoil.TheryegrassbiomassandPuptakeincreasesduetoSIAapplicationwerelargerthanthoseduetoRPapplicationintheclayeysoil,butsimilartothoseinthesandyloamsoil.TheSIAswithaPSPof≥54%significantlyincreasedsoilavailablePstocksandsaturation.Accordingtoourfindings,weconcludethattheSIAsfrommunicipalandagrifoodindustrieshaveapotentialforPagriculturalrecycling,buttheirefficienciesvary.

简介：Previousstudieshaveshownthatleakelectronsincuspedfieldthrusterscanmovealongthechannelaxistotheanodeaftercrossingthemagneticcuspontheexit.Inthispaper,aonedimensionalfluidmodelisbuiltalongtwotypicalelectronpathstostudytheinfluenceofleakelectronsonthedischargecharacteristicsofacuspedfieldthruster,consideringtheelectrontemperatureequation.Itisfoundthatthefrequenciesoflow-frequencyoscillationsincreasewithadecreaseintheproportionofleakelectrons,whichisrelatedtoanincreaseintheionspeedinthechannel.Simulationresultsshowthatthepositionofthepeakelectrontemperatureisnearthemagneticcuspontheexitandthepositionofthepeakelectrondensityislocateddownstreamfromthemiddlemagnetictip.Withadecreaseintheproportionoftheleakelectrons,thepeakelectrontemperatureandpeakelectrondensitydecreaseandthepositionofthepeakelectrondensitymovesawayfromtheexit,whichisrelatedtoadecreaseinthepotentialfallontheexitandanincreaseinconfinementofelectronstothemiddlemagneticcusp.

简介：Inthehillyregionduetoscarcityoftheplainarea,buildingslikesetback-stepbackaremoreoftenusedandalsoasabigsurgeinthetelecommunicationindustries,rooftoptoweradaptationisverycommonstorynowadays.Inthepresentstudyananalogyhasbeendrawntofindouttheinfluenceoftherooftoptelecommunicationtoweronthesetback-stepbackbuildingrestingongroundat20°and30°slopes.Adynamicanalysishasbeenperformedandcomparedonthe4leggedangledsectiontelecommunicationtowerwhichislocatedontherooftopofsetback-stepbackbuildingbyvaryingpositionsoftowerwiththeexistinghoststructurebuiltupongroundslopeof20°and30°inbothdirections(XandY).

简介：SiliconoxynitridewasaddedinshapedAl2O3-SiC-Crefractorymaterialtoimprovetheslagresistanceinthispaper.Optimumaddingquantityofsiliconoxynitridepowderwasalsostudied.TheresultsshowthattheslagresistanceofAl2O3-SiC-Cshapedrefractoryisimprovedwhen2%or3%Si2N2Oisadded.AreasonableamountofSi2N2OaddedintoAl2O3-SiC-Cshapedrefractorycanproducesiliconoxideintotheslag,whichcanimprovetheviscosityofslagandpreventtheslagerosionandpenetration.

简介：Inthisstudy,titaniumdioxidesupportedbymulti-walledcarbonnanotubes(MWCNTs/TiO2)andCr-dopedTiO2supportedbyMWCNTs(MWNTs/Cr-TiO2)weresynthesizedbythesol-gelmethod.Thepreparedsampleswerecharacterizedbytransmissionelectronmicroscopy,X-rayphotoelectronspectroscopy,X-raydiffraction,theBrunauerEmmett-Telleranalysis,andtheRamanspectroscopy.TheoxidationandefficiencyforremovalofSO2inasimulatedfluegaswereinvestigatedexperimentallyinafixed-bedreactor.The15%MWCNTs/Cr-Ti02sampledisplayedexcellentadsorptionproperties,andaSO2removalrateequatingto30.4151mg/gfromthesimulatedfluegascontaining2300μg/gofSO2,8%of02,and5%ofH20wasachievedunderoptimalconditionscoveringatemperatureof333.15K,andaspacevelocityof1275h^-1.TheadsorptionprocesswasenhancedbecauseCrdopingmodifiedtheporestructureandinhibitedthegraingrowthofTiO2.Inaddition,theFreundlichandLangmuirmodelsrevealedthatSO2wasmainlyadsorbedthroughchemicaladsorptiononthesamplesurfaces,andthethermodynamicmodelanalysisindicatedthattheadsorptionwasaspontaneous,exothermic,andentropy-reducingprocess.TheadsorptionkineticsofSO2canbedescribedbythepseudosecond-orderkineticandtheBanghamdynamicsmodels.Thepossiblereactionmechanisminvolvedindesulfurizationprocesswasalsoproposed.