简介:InJAC19,IinvestigatedListsofMonthlyBarley-WheatDistributionsandAllowances(se-garziz-garsa-dug4itid-da),withregardtothetypesandamountoffodderprovidedtodonkeysfromtheruleofEnentarzitotheendyearsofUrukagina.Inthispaper,IfoundthatfromUrukaginaYear5,ii(2ndmonth),thedailyfodderfordonkeys,andthenumberoftypesofdonkeys,weregreatlyreduced.EconomicdeclineoccurredinthereignofUrukagina,kingofLagash,fromthefifthyearon,possiblyasaresultofpoliticaldecline.ThefactthatthearchiveoftheHouseofTheLadyendsinUrukagina'sseventhyearmayimplythatitisinthisyearthatLugalzaggesi,kingofUmma,capturedLagashandGirsu.
简介:ParaloidB72(PB72)是现今世界文物保护领域中使用最广泛的一种聚合物材料,但人们发现它的耐老化性能并不理想,需对其光稳定性能进行研究。为此,通过傅立叶红外光谱衰减全反射技术(ATR—FTIR)和漫反射光谱技术跟踪监测了PB72光老化过程。同时测量了材料在光老化过程中的质量、涂膜硬度、可逆性等参数的变化。结果表明,PB72在光老化过程中,色度方面表现出相对较好的稳定性,因为在光老化过程中并没有产生过多的发色基团;但在光老化过程中分子结构发生了~系列变化,尤其是其羰基峰和酯基峰出现了明显的降低,并出现了较为明显的涂膜变硬、重量损失及可逆性降低现象。对监测数据的分析比较说明,PB72的耐光老化性能并不十分理想,其光稳定性有待进一步提高。
简介:FollowingtherecentpublicationandcriticaldiscussionofseveraltreatiesoftheOldBabylonianperiod,theattentionofOldBabylonianstudieshasbeendrawntotreatytexts.TheearliestpublishedtreatydocumentfromMesopotamia,tomyknowledge,isatreatybetweenthecityofShadlashandthecityofNeribtum,datedtothebeginningoftheOldBabyloniandynasty,publishedandtranslatedbyS.GreengusinOldBabylonianTabletsfromIschchaliandVicinity,1979(hereafter,Greengus).InwhatfollowsIpresentafurtherreadingofthetabletwithcriticalnotesandadetaileddiscussionofitscontents,inordertoattractmoreattentiontothislaconic,difficult(becauseofitsincompletecontext),andinterestingtext.Unlikelatertreatiesbetweentwokings,thistreatywasmadebetweentwocities,althoughtherulersofthecitiesarealsomentionedinthetreaty.