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简介：NORTHWESTETHNO-NATIONALSTUDIESisaquarterlyjournalexclusivelyforthestudiesontheanthropologyofalltheminoritiesculturesofNorthwestChina.UnderthedirectleadershipofChinaStateEthnicAffairsCommission,thejournalissponsoredbyNorthwestUniversityforNationalitiesandchieflyeditedbyProf.HaoSumin.ItincludesthereportsandtheresearchesonthehistoryandpresentsituationofalltheNorthwestminoritiesinthefieldsofOldSilkRoadStudy,

简介：TheWorldAssociationofSedimentationandErosionResearch(WASER)establishedtheAwardfordistinguishedcontributionstosedimentresearchin2004.ThisawardistoprovideinternationalrecognitionfordistinguishedcontributionstothesedimentstudiesthroughoriginalandilluminatingresearchpaperspublishedintheInternationalJournalofSedimentResearch.Sevenpaperspublishedin2004-2009havebeenawardedthedistinguishedcontributionsawardin2007and2010.Aselectioncommittee,consistsof7scientistsfrom6counties,wasestablishin2012,whichscreened125paperpublishedinInternationalJournalofSedimentResearchduring2010-2012.Copiesof15papersintheshortlistweresenttomembersofthecommitteeandeachmemberwasrequestedtorecommend3papersfortheaward.ThevotingforthedistinguishedcontributionsawardstartedfromNovember1,2012viaemail.Allmembersoftheselectioncommitteehavereadthepapersandvotedfortheawardbasedonscientificmeritsofthesepapers.UptoJanuary10,2013,allthesevenmembershavesentbacktheirvotes,andtheresultsarethereforevalid.Thefollowing

简介：阀值签名起一个重要作用在现代电子社会散布一个单个权威的力量。以便增加功能并且改进阀值签名的效率，有签署当局区分的一个多政策阀值签名计划被建议。在计划，二个组能签名并且验证对方，因此计划是双向的签名并且验证。而且，二个组的阀值价值能随着签名文件的安全分类变化，每个自由签署者仅仅签署这个文件的小部分而不是整个的，为组签名建设的数据传播的带宽能因此被减少，组签名的尺寸等价于任何单个签名的。

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