谈21世纪图书馆员的发展创新

21世纪图书馆员面临严峻挑战，本文从时代要求出发，提出全面建构图书馆员素质；革新观念、更新知识、发展能力、加强道德修养和心理素质完善，并提出大学教育、继续教育和终身学习是图书馆员素质持续发展创新的必由之路。     

遗传物质稳定性的辩证理解--谈DNA的稳定性与可变性

DNA在生物界中,堪称生物大分子中最重要者,主宰一切生物体维持其生命的各种机能的正常运行及每个物种一代一代繁衍于世,其结构是相对稳定的.     

Satellite SAR interferometric observations of displacements associated with urban subsidence in Suzhou, Eastern China

SAR interferometry (InSAR) has a high potential for surface displacement mapping in the range from millimeter to meter. In this paper the potential of ERS-1/2 SAR interferometry for mapping subtle land subsidence has been investigated. A time series of ERS-1/2 SAR data from February 1993 to February 2000 is collected from measurements taken in Suzhou city, Jiangsu Province, China, eight ERS-1/2 SAR images are used to create seven interferograms, and three differential interferograms are produced using the three-pass method, which clearly show the spatial extent of land subsidence. The deformation maps are validated by leveling surveys, the correlation coefficient and standard deviation between them are 0.943 and 0.1706 respectively. Based on seven benchmarks, the subsidence rates are estimated, the overall trends are in close agreement with InSAR results. The results of study show that for the mapping of land subsidence in urban environments InSAR has a strong potential due to its cost-saving, high resolution and accuracy.     

Reappraisal of Color Change in Women''''s Wears in China

Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｔｏｗａｎｔｔｏｃｈａｎｇｅｉｓｔｈｅｂａｓｉｃｃｈａｒａｃｔｅｒｏｆｈｕｍａｎｂｅｉｎｇｓ.Ｃｏｌｏｒｃｈａｎｇｅｓｒｅｆｌｅｃｔａｍｙｒｉａｄｏｆｅｌｅｍｅｎｔｓｆｒｏｍｄｅｓｉｇｎａｎｄｓｏｍｅｃｈａｒａｃｔｅｒｉｓｔｉｃｓｓｕｃｈａｓｆｉｎｅａｒｔ,ａｓｗｅｌｌａｓｅｃｏｎｏｍｉｃｓ,ｐｏｌｉｔｉｃｓ ,ｔｒａ ｄｉｔｉｏｎａｌｃｕｌｔｕｒｅａｎｄｐｓｙｃｈｏｌｏｇｉｃａｌｍｏｏｄｓ.Ｉｎｏｒｄｅｒｔｏｋｅｅｐｕｐｗｉｔｈｔｈｅｃｈａｎｇｉｎｇｃｏｌｏｒａｎｄｍａｋ…     

Al2O3-MxOy硬面陶瓷涂层的喷焊制备及性能研究

在碳钢母材上，用氧乙炔焰喷焊镍包铝合金粉末制取预涂层，喷焊50%Al2O3+50%Ni的复合粉末制取过渡层，用等离子喷焊Al2O3-MxOy复合粉末制取最终涂层。在质量分数为60%的硫酸与磷矿粉组成的混合介质（质量比为6∶4）中运转，所获得涂层的抗腐抗磨能力为18-8不锈钢的7.46倍，为德产316L不锈钢的4.06倍。     

带有渐近条件奇异微分方程的有界解

应用Schauder不动点定理考虑一类带有渐近条件的二阶奇异微分方程, 证明其有界解的存在性, 从而将北极环流模型有界解的结论推广到一般的二阶奇异微分方程中.     

Solidification of Spent Ion Exchange Resin Using ASC Cement

IntroductionSpent ion exchange resins(IERs) comprise themajor fraction of low and intermediate levelradioactive wastes in nuclear facilities,such asnuclear fuel reprocessing plants and nuclear powerstations.This kind of radwaste is difficult to treatand there is no practicable treatment technologycurrently available in China. Solidification of spentIER by cement has been used in several countriesdue to simple operation,low expense andendurance in the disposal environment[1] .However,some de…     

重庆市兽类资源及其区系分析

重庆市目前已知兽类117种，隶属于9目、31科、79属，其中，东洋界种88种，古北界种19种，季风型及广布种10种，地理分布上处于盆中平原丘陵省的物种仅54种，盆地东北缘大巴山省有85种，盆地东南缘山地省有79种，同时还探讨了重庆市兽类的生物多样性和资源类型。     

抗肾衰胶囊中黄芪甲甙的含量测定

采用双波长薄层扫描法测定抗肾衰胶囊中黄芪甲甙的含量。样品经适当提取后在硅胶板上展开 ,展开剂为氯仿 :甲醇 :水 (6 5∶35∶10 )下层 ,经扫描 (扫描条件 :λs=5 5 0 ,λr=70 0 ) ,测得样品含量为31 6 %(mg g) ,平均回收率为 10 4 5 %,RSD为 3 6 2 %。实验证明此方法简便、准确、可靠 ,能控制抗肾衰胶囊质量。     

基于ORACLE数据库的信息系统优化设计

目的“研究基于ORACLE数据库的信息系统优化设计方法.方法依据实践归纳并提出非3NF、方法库、数据独立性以及程序优化等方法.结果具体问题采用具体方法对提高系统运行效率和适应性有显著作用.结论s对类似的信息系统具有广泛的参考价值.