简介：AccordingtothepreliminarystatisticsofthemagneticmaterialsbranchofAssociationofChinarareearthindustry,therareearthpermanentmagneticmaterialsindustrymaintainedagoodmomentumofdevelopmentfromJanuarytoOctober2018,benefitingfromtherapiddevelopmentofnewenergyvehicles,energy-savinghouseholdappliances,industrialrobotsetc.Theoutputofpermanentmagneticmaterialsgrewsteadilyandtheproportionofhigh-endproductsaccountedfornearly60%.Amongthem,productionofsinteredNdFeBwas129,500tons,ayear-on-yeargrowthof5%.TheoutputsofbondedNdFeBandSmComagnetswere5,500tonsand2,100tonsrespectively,unchangedthanthesameperiodlastyear.
简介：在中国上的暴风雪的第三个阶段的energetics用ECWMF数据被分析。为中东马槽和在25282008年1月上向中国发展了的西方的和平的马槽的精力预算的分析由是关键来源和与马槽联系的旋涡动能中心的主要水池的ageostrophic风显示出geopotential的移流。精力变换学期，相互作用动能变换和baroclinic变换的大小，太小，不能解释精力中心和喷气条纹的发展。精力中心经由ageostrophicgeopotential流动的集中在他们的入口区域获得了精力，然后由一样的流动在他们的出口区域失去了精力。在入口区域，流动收敛了，增加geopotential坡度，它产生了更大的因地球自转而引起的风和更高的动能，导致在这个区域的一个上升运动。当马槽搬到中国时，流动的集中在入口区域引起的上升运动在中央、南部的中国上加强了暴风雪。
简介：ThehugewinterstormofDecember23–29,2015deliveredheavyrainfallinabroadswathacrosstheUSA,delugingEast-CentralMissouri.Recordhighriverlevelsweresetatmanysites,butdamagesweremostpronouncedindevelopedfloodplainareas,particularlywherehighleveeswerebuiltorriverchannelsgreatlynarrowed.Anaverageof20cmofrainthatmostlyfellinthreedaysimpactedtheentire10300km2MeramecBasin.Comparedtothepriorrecordfloodof1982,thehighestrelativestage(+1.3m)onMeramecRiveroccurredatValleyParkproximalto(1)anewlevee,(2)alandfillinthefloodway,(3)largefloodplainconstructionfills,and(4)tributarycreekbasinsimpactedbysuburbansprawl.Eventhoughonlyasmallfractionofthe1.8millionkm2MississippiRiverwatershedaboveSt.Louisreceivedextraordinaryrainfallduringthisevent,thehugechannelizedrivernearandbelowSt.Louisrapidlyrosetosetthe3rd-highesttothehigheststagesever,exhibitingtheflashyresponsetypicalofamuchsmallerriver.
简介：Usingthe78focalmechanismsolutionsoftheforeshocks,mainshockandaftershocksoftheearthquakesequencefortheYao'anearthquake,thecharacteristicsofthefocalfaultsandstressfieldfortheearthquakesequenceareanalyzed.TheresultsshowthatthemainruptureplaneoftheYao'anearthquakesequenceisatectonicfaultwithN50°Wstrikeandsteepdipandallthemainshock,theforeshocksandthevastmajorityofaftershocksoccurredonthemainruptureplane.AtectonicfracturewithNNE-NEstrikealsoparticipatedindevelopmentprocessofthesequencedominatedbyprincipalcompressionalstresswithnearlyhorizontalorientationSSEisconsistentwiththeregionaltectonicstressfield.Inthesequencedevelopment,thestressfieldinthefocalregionwascomplexwithmultiaximuthsandmulti-actionmodelsandthefocalruptureshowedcomplexfeatureswithmulti-directionsandmulti-patterns.
简介：Chemicalcomposition,hourlycounts,andsizesofatmosphericcarbonaceousparticlesweremeasuredtoinvestigatetheirmixingstateonclearandhazydays.623,122carbonaceousparticleswithsizes0.2-2.0μmwasanalyzedusingasingle-particleaerosolmassspectrometerfrom1stto17thJanuary2013.Particletypesincludedbiomass/biofuelburningparticles(biomass),elementcarbon(EC-dominant)particlesthatwerealsomixedwithbiomass/biofuelburningspecies(EC-biomass)orsecondaryspecies(EC-secondary),organiccarbon(OC),internallymixedOCandEC(OCEC),ammonium-containing(ammonium)andsodium-containing(sodium)particles.Oncleardaysthetoprankedcarbonaceousparticletypeswerebiomass(48.2%),EC-biomass(15.7%),OCEC(11.1%),andsodium(9.6%),whileonhazydaystheywerebiomass(37.3%),EC-biomass(17.6%),EC-secondary(16.6%),andsodium(12.7%).ThefractionsofEC-secondary,ammonium(10%),andsodiumparticletypeswereelevatedonhazydays.NumbersofEC-secondaryparticlesweremorethanfourtimesthoseoncleardays(4.1%).Thus,carbonaceousparticlesmixedwithammonium,nitrateandsulfateduringagingandtransport,enhancingtheirlightextinctioneffectsandhygroscopicgrowthunderhighrelativehumidityonhazydays,furtherreducingvisibility.Ourreal-timesingle-particledatashowedthatchangestomixingstatehadasignificantimpactonlightextinctionduringhazeeventsinNanjing.
简介：Thispaperpresentsahigh-resolutionsimulationofaremarkablepolarlowobservedovertheSeaofJapanon21January1997byusinga5-kmmeshnon-hydrostaticmodelMRI-NHM(MeteorologicalResearchInstituteNon-HydrostaticModel).A24-hoursimulationstartingfrom0000UTC21January1997successfullyreproducedtheobservedfeaturesofthepolarlowsuchasthewrappingofwesternpartofaninitialEWorientationvortex,thespiral-shapedbands,thecloud-free'eye',andthewarmcorestructureatitsmaturestage.The'eye'ofthesimulatedpolarlowwasrelativelydry,andwasassociatedwithastrongdowndraft.Athermodynamicbudgetanalysisindicatesthatthe'warmcore'inthe'eye'regionwasmainlycausedbytheadiabaticwarmingassociatedwiththedowndraft.Therelationshipamongthecondensationaldiabaticheating,theverticalvelocity,theconvergenceofthemoistureflux,andthecirculationaveragedwithina50km×50kmsquareareaaroundthepolarlowcentershowsthattheyformapositivefeedbackloop,andthisloopisnotinconsistentwiththeCISK(ConditionalInstabilityoftheSecondKind)mechanismduringthedevelopingstageofthepolarlow.
简介： Illustration Allthedatainthiscatalogarechosenfromthe″PreliminarySeismologicalReportofChi-neseSeismicStations″(Itsabbreviationis″MonthlyReport″).ThecatalogincludestheeventsofM≥4.7inandnearChinaandM≥6allovertheworld.The″MonthlyReport″ismonthlycompiledbytheNinthSectionofInstituteofGeophysics,CSB. ……
简介：(January1998-December2013)Currentdevelopmentsinsedimentresearchcontinueataheadypace,andarereportedintheInternationalJournalofSedimentResearch(IJSR)atabout500pagesperyear.However,asofJanuary2014,amajorchangehasoccurred:after16years(January1998toDecember2013)asEditor-in-Chief,ProfessorZhao-YinWanghassteppeddownfromthehandlingofmanuscripts.
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