简介：MolycorptoacquireleadingrareearthprocessorNeoMaterialTechnologiesin$1.3BillionDealMolycorp,Inc.('Molycorp')andNeoMaterialTechnologiesInc.('NeoMaterials'or'Neo')announcedonMarch8ththesigningofadefinitiveagreementunderwhichMolycorpwillacquireNeo

简介：<正>OneofthemandatesItriedtoembracewhenIwaspresidentoftheInternationalSocietyofBiomechanics(2007-2009)wastofoster,encourage,andbringtothelimelight,theresearchactivitiesfromcountriesthatwereunderrepresentedinternationally.Irealizedthatsuchunderrepresentationwasoftentheresultofbarriersbetweenscientificcommunitiesthathadevolvedhistorically,basedonbackground,language,scientificmethod,financialsupportetc.,barriersthatcouldeasilybeovercomebypersonalcontacts,acknowledgementof

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简介：我们的世界以指数的率一直在变化。由于这快速的生长，我们将被强迫以我们自己在环境而且在环境过例如设计在有增加的人口和成长复杂性的更大的和谐的未来的城市的方法做变化不仅。纸为选择最理想的城市在全球了解和全面标准和他们的优先级上包含两思考。

简介：Thispapersummarizes,fromaglobalperspective,themajorprogressintheimplementationoftheAgenda21sincetheUNConferenceonEnvironmentandDevelopment.Theresultsshowthatglobaleconomyhasachievedasubstantialgrowth,andpositiveprogresshasbeenmadeinpovertyeradication,urbanization,andconservationandintensiveuseofnaturalresources.However,relevantinternationalconventionsandcommitmentshavenotyetbeencompletelyfulfilled.Thepaperfurtheranalyzesthecurrentmajorchallengesandfuturetrendsofglobalsustainabledevelopment.Itisarguedthattherearethreemajorchallenges:1)fatalglobalenvironmentalissuesposinganincreasingthreattohumansurvival;2)moreandmoresevereglobalcompetitionfordevelopingspaces;and3)issueshighlightingglobalpeople'slivelihood.Therearefourtrendsofglobalsustainabledevelopment:1)sustainabledevelopmentwillfurtherturnfromconceptintoglobalaction;2)greenwillbethemaintrendofglobaldevelopment;3)emergingdevelopingcountrieswillbecomethemaindrivingforceofglobalsustainabledevelopment;and4)internationalrelationsinthefieldofsustainabledevelopmentwillturntocompetitiveco-operation.

简介：Inthispaper,achemotaxismodelwithreproductionterminaboundeddomainRnisdiscussed.Theexistenceofaglobal-in-timesolutionandaglobalattractorforthismodelareobtained.

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简介：在这份报纸，我们用间隔分析为全球优化建议一个分散的平行计算模型。模型对处理器的任何数字适应，工作量在由其他的消息过去的所有处理器之中是自动地并且均匀地分布式的。每个处理器收到的问题基于他们的本地优势性质被处理，它避免不必要的间隔评估。进一步，这个问题在计算的开始总体上被对待以便没有起始的分解计划被要求。数字实验显示模型工作很好并且与平行处理器的不同数字是稳定的，在处理器之中均匀地散布负担，并且提供出色的加速，特别当这个问题是费时间的解决时。

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简介：这份报纸为全球阳光持续时间评价论述一个改进模型。方法论由包括雪盖子信息，阳光和卫星角度和一个趋势修正因素季节合并地球同步的卫星图象，为云盖子索引的决心。建议方法论的有效性与1h的时间的分辨率和2.5km瑵洠慥?汦睯?湡?慷?畦瑲敨?浥汰祯摥琠?瑳摵?桴?的空间分辨率在可见乐队用Meteosat地球同步的卫星图象被测试了晥敦瑣漠?桴?敭湡映潬?湯琠敨愠潣獵楴?数晲牯慭据?景琠敨洠?汦牥.閌?閌吗？？

简介：Thenumberoftropicalcyclone(TC)genesisovertheSouthChinaSeaandtheNorthwestPacificOceanin2009issignificantlylessthantheaverage(27.4).However,thenumberoflandfallTCovermainlandChinaanditsassociatedrainfallismorethantheaverage.Thispaperfocusesontheperformanceofnumericalweatherprediction(NWP)oflandfallTCprecipitationoverChinain2009.TheChinaMeteorologicalAdministration(CMA)andJapanMeteorologicalAgency(JMA)modelsarecompared.Althoughtheschemesofphysicalprocesses,thedataassimilationsystemandthedynamicframeareentirelydifferentforthetwomodels,theresultsofforecastverificationaresimilartoeachotherforTCrainfallandtrackexceptforTCGoni.Inthispaper,adaywithdailyrainfallamountgreaterthan50mmwasselectedasastormraindaywhentherewasaTCaffectingthemainland.Thereare32stormraindaysrelatedtothelandingoftyphoonsandtropicaldepressions.TherainfallforecastverificationmethodsofNationalMeteorologicalCentre(NMC)ofCMAareselectedtoverifythemodels’rainfallforecast.ObservationalprecipitationanalysesrelatedtoTCsin2009indicateaU-shapespatialdistributioninChina.Itisfoundthattherainbeltforecastedbythetwomodelswithin60hoursshowsgoodagreementwithobservations,bothinthelocationandthemaximumrainfallcenter.Beyond3days,theforecastedrainfallbeltshiftsnorthwardonaverage,andtherainfallamountofthemodelforecastsbecomesunder-predicted.TherainfallintensityofCMAmodelforecastismorereasonablethanthatofJMAmodel.Forheavyrain,theJMAmodelmademoremissingforecasts.TheTCrainfallisverifiedinGuangdong,Guangxi,FujianandHainanwhererainfallamountrelatedtoTCsisrelativelylargerthaninotherregions.TheresultsindicatethatthemodelforecastforGuangdongandGuangxiismoreskillfulthanthatforHainan.TherainfallforecastforHainanremainsdifficultforthemodelsbecauseofinsufficientobse

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简介：WiththeERA40reanalysisdailydatafor1958-2001,theglobalatmosphericseasonal-meandiabaticheatingandtransientheatingarecomputedbyusingtheresidualdiagnosisofthethermodynamicequation.Thethree-dimensionalstructuresforthetwotypesofheatingaredescribedandcompared.Itisdemonstratedthatthediabaticheatingisbasicallycharacterizedbystronganddeepconvectiveheatinginthetropics,shallowheatinginthemidlatitudesanddeepcoolinginthesubtropicsandhigh-latitudes.Thetropicaldiabaticheatingalwaysshiftstowardsthesummerhemisphere,butthemidlatitudeheatingandhigh-latitudecoolingtendtobestronginthewinterhemisphere.Ontheotherhand,thetransientheatingduetotransienteddytransferischaracterizedbyameridionaldipolepatternwithcoolinginthesubtropicsandheatinginthemid-andhigh-latitudes,aswellasbyaverticaldipolepatterninthemidlatitudeswithcoolingatlowerlevelsandheatinginthemid-andhigher-levels,whichgivesrisetoaslopedstructureinthetransientheatingorientedfromthelowerlevelsinthehighlatitudesandhigherlevelsinthemidlatitudes.Thetransientheatingiscloselyrelatedtoastormtrackalongwhichthetransienteddyactivityismuchstrongerinthewinterhemispherethaninthesummerhemisphere.InNorthernHemisphere,thetransientheatinglocatesinthewesternoceanicbasin,whileitiszonally-orientedinSouthernHemisphere,forwhichthetransientheatingandcoolingarefarseparatedoverSouthPacificduringthecoldseason.Thetransientheatingtendstocancelthediabaticheatingovermostoftheglobe.However,itdominatesthemid-troposphericheatinginthemidlatitudes.Therefore,theatmospherictransientprocessesacttohelptheatmospheregainmoreheatinthehigh-latitudesandinthemid-troposphereofmidlatitudes,reallocatingtheatmosphericheatobtainedfromthediabaticheating.

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简介：介绍了GlobalMapper中投影/坐标系统的定义方法,以MicroStationDGN格式数字地图坐标系统转换为例,给出了利用GlobalMapper实现数字地图坐标系统转换的方法和步骤,并对转换结果进行了分析。

简介：一条全球存在定理为一个起始边界的值问题被建立，与时间依赖者边界数据，在脉搏燃烧的一个lumped参数模型产生；在问题的模型产生一个非线性的混合夸张寓言的系统。用以前为联系线性问题建立的结果，固定的点争论被采用与人工的粘性为非线性的问题的一个调整版本证明存在本地。适当-priori估计然后被导出它暗示本地存在结果能为调整问题被扩大到一条全球存在定理。最后，priori估计的一个不同集合被产生当人工的粘性参数收敛到零，它允许拿限制；调整问题的相应答案然后被证明收敛到原来的、非线性的、夸张寓言的系统的起始边界的价值问题的唯一的答案。