简介:摘要:智能仓储系统对仓储领域而言是一次技术革命,融合了互联网、物联网、大数据等众多先进技术,是集仓储、捡选、配送、信息管理为一体的信息化管理系统。由于科技的不断创新和经济的快速发展,先进的自动化设备和信息化技术运用于智能仓储管理系统,大大提高了货物的自动存储、捡选、搬运和配送等仓储效率和准确性,降低了成本。本文对我国轨道交通装备制造生产企业的智能仓储管理系统进行了研究,对当前的系统运行状况和面临的瓶颈进行了详细的分析。基于上述研究成果,文章针对如何实现高效物流仓储管理,给出相应的对策;智能物流管理,结合信息化手段重构采购供应链、物流仓储、物流配送业务为一体的供应链优化。
简介:“中国气象应用网格”是国家863重大专项支持的一个应用网格项目,主要针对中国气象局计算资源及科研人员分散在全国各地,气象预报面向政府、社会和公众服务的特点,建立了连接中国气象局行业内部和国防科技大学等单位在内的跨地域网格平台;在该网格平台上建立全面支持我国新一代中尺度数值天气预报系统的协同攻关环境和基于GRAPES的中尺度有限区数值天气预报业务系统,实现了应用层面的互联互通、资源共享和协同工作,提高气象部门的资源利用率、业务预报和自动化水平。“中国气象应用网格”包括网格中尺度数值预报模式GRAPES、网格门户、网格计算、资源和服务共享平台、基于Ganglia的网格资源监控、数值天气预报控制界面、气象预报产品发布和可视化、源代码管理系统、网格用户注册与管理等系统。
简介:摘要近年来,以新疆自治区为代表的西北地区煤炭产业发展速度加快,煤炭外运的压力也不断增大。甘肃武威地处河西走廊中部,是兰新铁路的重要节点区,可通过兰新线、干武、兰渝、宝中、兰成等铁路线辐射西南、中南地区及沿海地区,也是新疆煤炭资源进入内陆地区的必经之地,地理优势显著。国家拟规划在甘肃武威建设国家煤炭储备物流基地。为此,本文章结合实际情况,对西北国家煤炭物流园区建设的可行性和决策因素进行了分析研究。
简介:[1]AnZS,WeiLY,LuYC,1985,ApreliminarystudyofsoilstratigraphyinLuochuanloessprofile.QuaternarySciences,6(1):166-173.(inChinese)[2]AnZS,KutzbacchJE,PrellWLetal.,2001.EvolutionofAsianmonsoonsandphasedupliftoftheHimalaya-TibetanplateausinceLateMiocenetimes.Nature,411:62-66.[3]BarbaraAM,1995.PalaeorainfallreconstructionsfrompedogenicmagneticsusceptibilityvariationintheChineseloessandpalaeosol.QuaternaryResearch,44(3):383-391.[4]DerbyshireE,MengXM,KempRA,1998.Provenance,transportandcharacteristicsofmodemaeoliandustinwesternGansuProvince,China,andinterpretationoftheQuaternaryloessrecord.JournalofAridEnvironments,39:497-516.[5]DingZL,LiuDS,LiuXMetal.,1989.37cyclessince2.5Ma.ChineseScienceBulletin,34(19):1494-1496.[6]DingZL,RutterNW,SunJMetal.,2000.Re-arrangementofatmosphericcirculationatabout2.6MaovernorthernChina:evidencefromgrainsizerecordsofloess-palaeosolandredclaysequences.QuaternaryScienceReviews,19:547-558.[7]DuJ,ZhaoJB,2004.SoilerosionregularitysinceHoloceneinShaolingtablelandofChang′an.JournalofDesertResearch,24(1):63-67.(inChinese)[8]FengZD,WangHB,OlsonCetal.,2004.Chronolgicaldiscordbetweenthelastinterglacialpaleosol(S1)anditsparentmaterialintheChineseLoessPlateau.QuaternaryInternational,117:17-26.[9]GuoZT,LiuDS,FedoroffNetal.,1998.ClimateextremesinloessofChinacoupledwiththestrengthofdeep-waterformationintheNorthAtlantic.GlobalandPlanetaryChange,18:113-128.[10]GuoZT,WillamFRuddiman,HaoQZetal.,2002.OnsetofAsiandesertificationby22MyragoinferredfromloessdepositsinChina.Nature,416:159-163.[11]HeinrichH,1988.OriginandconsequenceofcycliciceraftinginthenortheastAtlanticOceanduringpast130000years.QuaternaryResearch,29:142-152.[12]KempRA,DerbyshireE,
简介:Glacierinventorycompilationduringthepast20yearsandmodificationsofthatfortheEasternPamirandBanggongLakeindicatethatthereare46,342modernglacierswithatotalareaandvolumeof59415km2and5601km3respectivelyinChina.Theseglacierscanbeclassifiedintomaritimeandcontinental(includingsub-continentalandextremelycontinental)types.ResearchesshowthatglaciersinChinahavebeenretreatingsincetheLittleIceAgeandthemasswastagewasacceleratedduringthepast30to40years.BeinganimportantpartofglaciologicalstudiesinChina,icecoreclimaticandenvironmentalstudiesonTibetanPlateauandintheAntarcticahaveprovidedabundant,highresolutioninformationaboutpastclimaticandenvironmentalevolutionovertheTibetanPlateauandAntarctica.ExceptfordifferentparametersrecordedinicecoresrelatingtoclimateandenvironmentchangesonTibetanPlateau,recordsfromicecoresextractedfromdifferentglaciersshowthatthediscrepanciesinclimaticandenvironmentalchangesonthenorthandsouthpartsoftheplateaumaybetheconsequenceofdifferentinfluencingeffectsfromterrestrialandsolarsources.GlaciologicalandmeteorologicalphenomenaimplythatLambertGlaciervalleyisanimportantboundaryofclimateintheeastAntarctica,whichisthoughttobeconnectedwithcyclonicactivitiesandCircum-polarWavesovertheAntarctica.
简介:PermafrostinChinaincludeshighlatitudepermafrostinnortheasternChina,alpinepermafrostinnorthwesternChinaandhighplateaupermafrostontheTibetanPlateau.Thehighaltitudepermafrostisabout92%ofthetotalpermafrostareainChina.Thesouthboundaryorlowerlimitoftheseasonallyfrozengroundisdefinedinaccordancewiththe0℃isothermallineofmeanairtemperatureinJanuary,whichisroughlycorrespondingtothelineextendingfromtheQinlingMountainstotheHuaiheRiverintheeastandtothesoutheastboundaryoftheTibetanPlateauinthewest.SeasonalfrozengroundoccursinlargepartsoftheterritoryinnorthernChina,includingNortheast,North,NorthwestChinaandtheTibetanPlateauexceptforpermafrostregions,andaccountingforabout55%ofthelandareaofChina.Thesouthernlimitofshort-termfrozengroundgenerallyswingssouthandnorthalongthe25°northernlatitudeline,occurringinthewetandwarmsubtropicmonsoonclimaticzone.Itsareaislessthan20%ofthelandareaofChina.
简介:摘要:随着经济全球化进程的加快和我国经济的高质量快速发展,国民经济的总量呈几何级增加,生活日用品、能源、建筑材料等物资的快速流通已成为常态,高效、快速的运输需求量急增。近年来高速铁路的建设与日俱增,既有铁路也不断改造提速,路网功能不断完善,新装备投入带动了铁路的高速发展,也缓解了一直以来货物运输的瓶颈。高铁线路的不断开通,为铁路运输企业的高速发展提供了动力保障。作为最具活力的运输工具,单一的运输服务已无法满足客户的需求,运输两端服务内容的水平已成为制约运输产品质量的拦路虎,提升和做好运输两端的接取送达业务,如何延长物流节点,成为铁路企业向现代物流转型中必须解决和思考的问题。