简介：1839虎门销烟6月3日，林则徐下令在虎门海滩当众销毁鸦片，至6月25日结束，共历时23天，销毁鸦片19187箱和2119袋，总重量2376254年。

简介：我们建议一个回顾的信任区域算法，信任区域为非强迫的优化问题收敛到零。不同于传统的信任区域算法，算法根据回顾的比率更新信任区域半径，它使用最近的模型信息。我们证明算法保存传统的信任区域算法的全球集中。superlinear集中也在一些合适的条件下面被证明。[从作者抽象]

简介：ＰｒｏｊｅｃｔｉｏｎｏｆｔｈｅＷｏｒｌｄＰｏｐｕｌａｔｉｏｎｂｙＲｅｇｉｏｎ＊ＡｓｉａａｎｄｔｈｅＰａｃｉｆｉｃＲｅｇｉｏｎａｎｄＷｅｓｔＡｓｉａProjection　of　the　World　Population　by　Region...

简介：ＰｒｏｐｅｒｔｉｅｓｏｆＮｕｃｌｅｉｉｎＬｅａｄＲｅｇｉｏｎ￥ＧｕＪｉｎｎａｎａｎｄＺｈａｎｇＣｈａｎｇｈｕａＴｈｅｓｔｒｕｃｔｕｒｅｏｆｔｈｅｎｕｃｌｅｉｉｎｔｈｅｖｉｃｉｎｉｔｙｏｆ２０８Ｐｂｈａｖｅｂｅｃｏｍｅｏｆｇｒｅａｔｅｘｐｅｒ...

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简介：Foralongtime,prisonsandinmatesinTibethavebeenafocalpointintheDalaicliqueanditswesternsupporters’attackonChina.TogiveatruepictureofthesituationinTibet’sprisons,threecorrespondentsofXinhuaNewsAgency,Duoqiong,CuiFengandZhaXin,wenttotheprisonsinTibetandobtainedlotsofuntoldstories.Followingistheirreport.

简介：Thispaperistoconstructa'digitallocal,regional,region'informationframeworkbasedonthetechnologyof'SIG'anditssignificanceandapplicationtotheregionalsustainabledevelopmentevaluationsystem.First,theconceptofthe'gridcomputing'and'SIG'isinterpretedanddiscussed,thentherelationshipbetweenthe'gridcomputing'and'digitalregion'isanalyzed,andtheframeworkofthe'digitalregion'isputforward.Finally,thesignificanceandapplicationof'gridcomputing'tothe'regionsustainabledevelopmentevaluationsystem'arediscussed.

简介：Thispaperconsiderstheproblemofplanningthemotionofasearcherinapolygonalregiontoeventually'see'anintruderthatisunpredictableandcapableofmovingarbitrarilyfast.Asearcheriscalledtheboundarysearcherifhecontinuouslymovesonthepolygonboundaryandcanseeonlyalongtheraysoftheflashlightsheholdsatatime.Wepresentnecessaryandsufficientconditionsforann-sidedpolygontobesearchablebyaboundarysearcher.Basedonourcharacterization,theequivalenceoftheabilityofthesearchershavingonlyoneflashlightandtheoneofthesearchershavingfull360°visionissimplyestablished,andmoreover,anoptimalO(n)timeandspacealgorithmfordeterminingthesearchabilityofsimplepolygonsisobtained.WealsogiveanO(nlogn+I)timealgorithmforgeneratingasearchscheduleifitexists,whereI(<3n~2)isthenumberofsearchinstructionsreported.OurresultsimproveuponthepreviouslyknownO(n~2)timeandspacebounds.

简介：Thelasttwenty-fiveyearsofgeologicalinvestigationoftheMediterraneanregionhavedisprovedthetraditionalnotionthattheAlpine-Himalayanmountainrangesoriginatedfromtheclosureofasingle,albeitcomplex,oceanicdomain-theTethys.Instead,thepresent-daygeologicalconfigurationoftheMediterraneanregionistheresultofthecreationandensuingconsumptionoftwomajoroceanicbasins-thePaleotethysandtheNeotethys-andofadditionalsmalleroceanicbasinswithinanoverallregimeofprolongedinteractionbetweentheEurasianandtheAfrican-Arabianplates.Ingreaterdetail,thereisstillsomedebateaboutexactlywhatTethysexistedatwhattime.Aconsensusexistsastothepresenceof(i)amainlyPaleozoicpaleotethyanoceannorthoftheCimmeriancontinent(s);(ii)ayoungerlatePaleozoic-Mesozoicneotethyanoceanlocatedsouthofthiscontinent,andfinally;(iii)amiddleJurassicocean,theAlpineTethys-Valais,anextensionofthecentralAtlanticoceaninthewesternTethyandomain.AdditionallatePaleozoictoMesozoicback-arcmarginalbasinsalongtheactiveEurasianmargincom-plicatedsomewhatthissimplepicture.Theclosureoftheseheterogeneousoceanicdomainsproducedasys-temofconnectedyetdiscreteorogenicbeltswhichvaryintermsoftiming,tectonicsettingandinternalarchi-tecture,andcannotbeinterpretedastheendproductofasingle"Alpine"orogeniccycle.InNeogenetime.followingprolongedindentationalongtheAlpinefront,anumberofsmallcontinentalmicroterranes(Kabylies,BalearicIslands,Sardinia-Cor-sica,Calabria)riftedofftheEurooean-lberiancontinan-talmarginanddriftedtowardsouthorsoutheast,leavingintheirwakeareasofthinnedcontinentalcrust(e.g.ValenciaTrough)orsmalloceanicbasins(Algerian,ProvencalandTyrrhenianbasins).TheEMediterraneanissimilarlycharacterizedbywidespreadNeogeneexten-sionaltectonism,asindicatedbythinningofcontinentalcrustalonglow-angledetachmentfaultsin

简介：WidespreadspeculationaboutChina’srecent"loggingban"notwithstanding,majorreversalsinforestrypracticesinTibetseemunlikelytomaterializeinthenearfuture.BecauseofficialsfromtheTibetAutonomousRegion(TAR)didnotsubmitaproposaltothecentralgovernmenttobeinclud...

简介：图象质量评价(IQA)是在图象处理的一个基本问题。人的视觉是层次的，这是一个普通原则：我们首先察觉象轮廓那样的全球结构的信息然后如果必要集中于本地地区性的细节。跟随这个原则，我们由确定为IQA建议一个新奇框架结构的信息和区域的退化独立满足，并且印射两个获得客观分数。结构的信息能被轮廓察觉技术作为轮廓获得。实验被进行在二大规模数据集上与多重最先进的方法比较表明它的表演。

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简介：一个大问题在世界上影响大多数这些国家的Desertification过程。这个过程在干旱、半干旱的区域有高率。今天，人的社会作为引起各种各样的不可弥补的损坏到经济、社会的部门的一个严重问题正在遇到desertification现象。为了在另一个区域为他们的申请在不同地区性的模型的生产估计desertification结果，索引应该是re-investigated并且适应本地条件。几个模型为desertification评估被开发了。现在的学习，估计desertification过程在一个区域有的份量上的尝试在伊朗平凡的Sistan定位了(是的Niatak区域案例研究)由使用修改MEDALUS方法。获得的结果显示了整个学习区域的(包括4819.6英亩)，2651.56英亩(55%)位于中等desertification紧张班，1269.48英亩(26.34%)在严重desertification紧张班上被放，并且898.54英亩(18.64%)被放在改变严重desertification紧张班。

简介：在在武汉区域的GPS气象学网络的学习有三个方面。第一是在相对系数为是99.97的最后的位置推算历和超速的位置推算历之间的GPS可降水蒸汽的比较，根平均数摆平是0.048公里。超速的位置推算历能被用来为即时预言得到GPS可降水蒸汽，这能被结束。第二是GPS车站的可降水蒸汽的比较，在武汉区域的水汽的分发被获得。在一个降雨过程的GPS可降水蒸汽和降雨的变化被比较并且分析。GPS可降水蒸汽的变化能反映并且预言降雨的过程。

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简介：Ａｋｉｎｅｍａｔｉｃｓ－ｕｐｌｉｆｔｍｏｄｅｌｆｏｒｔｈｅＨｉｍａｌａｙａｎＴｉｂｅｔａｎｒｅｇｉｏｎＸｉａｎ－ＪｉｅＳＨＥＮ（沈显杰）ａｎｄＬａｄｉｓｌａｕｓＲＹＢＡＣＨ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊ...

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简介：TheauthorsanalyzeeventsintheAsia-PacificregionsincetheendoftheColdWarandthendrawthreeconclusionsaboutthestrategicbalanceof'onesuperpower,multiplemajorpowers'inthisregion.First,comparedwithastablesuperpower,theU.S.,currentmultiplepowers—China,Japan,Russia,ASEAN,IndiaandAustralia—aremoredynamic.Second,twokindsofforcesmaintainorder—acombinationofnationalstrengthandnon-nationalstrength.Ononehand,therearefourdifferentmodelswhichcouldensureAsia-Pacificorderinthefuture:theU.S.modelofhegemony,China'smodelofaharmoniousAsia-Pacificregion,ASEAN'smodelofregionalcooperation,andthemodelofnon-statesactors.Ontheotherhand,fourdifferentstructures—security,production,financeandknowledge—arecloselylinkedinthisarea.Third,globalizationofthemarketeconomybringsdynamicanddiversedevelopment.TheauthorsbelievethatChina's'HarmoniousAsia-Pacific'modelisthebestchoicefortheAsia-Pacificstrategicpatternof'Onesuperpower,multiplemajorpowers.'

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