KCl-KNO3-CH3OH/H2O和KNO3-NH4NO3-CH3OH/H2O三元体系在25℃时的溶解度

测定了 2 5℃时KCl KNO3 CH3 OH H2 O和KNO3 NH4NO3 CH3 OH H2 O三元体系的溶解度 ,并与 2 5℃时相应体系在水中的溶解度进行了比较。     

Sand harm in Taklimakan Desert highway and sand control

Reputed as a wonderful achievement of the world's highway construction history, the Taklimakan Desert highway is now facing serious sand drift encroachment problems due to its 447- km-long passage of sand sea consisting of crescent dunes, barchan chains, compound transverse dune ridges and complex megadunes. To solve some technical problems in the protection of the highway from sand drift encroachment, desert experts have been conducting the theoretical and applied studies on sand movement laws; causes, severities and time-space differentiation of sand drift damages; and control ways including mechanical, chemical and biological measures. In this paper the authors give an overall summary on the research contents and recent progress in the control of sand drift damages in China and hold that the theoretical research results and practices in the prevention of sand drift encroachment on the cross-desert highway represent a breakthrough and has an epoch-making significance. Since the construction of protective forest along the cross-desert highway requires large amount of ground water, what will be its environmental consequence and whether it can effectively halt sand drift encroachment on the highway forever are the questions to be studied urgently.     

云南巍山—永平矿集区流体地质填图的理论与实践

流体地质填图是一种全新的地质调查及找矿方法。本次研究选择云南巍山－永平矿集区进行流体地质填图试验，研究了矿集区的控矿地质要素、各种主要的矿床（点）特征、成矿流体子系统及流域、流体的盐度与均一温度、流体的气液相成分、微量元素含量、稳定同位素特征及成矿流体的浓集中心。得到的流体地质图基本反映了本区成矿流体的性质与状态，反映了两个成矿流体子系统的基本特征，圈字了2个成矿流体子系统的流域范围及7个成矿流体浓集中心。这些浓集中心与已知矿化点分布、化探异常及有利的地质条件基本吻合，成为该区进一步找矿预测的重要依据之一。本项目的实践表明，流体地质填图不失为一种有效的找矿手段。     

采用环境同位素方法研究北江大堤石角段基岩渗漏通道

论述了采用环境同位素与人工示踪的方法探测北江大堤石角段频发"管涌"的原因,通过对洪水期间不同区域层位的稳定同位素δD(‰)与δ18O(‰)的分析确定了地面涌水的来源,结合孔中的人工示踪方法,最终确定出北江大堤石角段的"管涌"来自基岩断裂强渗漏通道,为下一步的加固工程提供了重要的科学依据。     

云南泸沽湖畔石炭系-二叠系生物地层再研究

着重讨论沪沽湖畔相当于石炭系(三分)上统马平阶地层的划分和对比。认为其大部属于我国二叠系(三分)的下二叠统紫松阶(阿瑟尔阶—萨克马尔阶)，上部的硅质页岩已进入隆林阶(亚丁斯克阶)。根据岩性特征及古生物混生现象，推测除顶部外，大部为斜坡相沉积。其中的部分生物应是再沉积产物。     

浅议反射法混凝土厚度检测

隧道衬砌、路道、路面楼板等只有一个检测面,冲击回波法成为新的厚度及缺陷检测方法.由冲击回波法与基桩反射法的共性及特性揭示了这种方法的机理及频域与时域检测2种不同施测方法以及对激振的不同要求.用惠更斯菲涅尔带分析了水平分辨率,最后说明该种方法的技术关键.     

GIS支持下的全国广播电视信息管理系统的建设

介绍了GIS支持下的与专业信息充分结合的 ,为领导和专业技术人员提供决策支持等方面的实例。从技术和应用角度论述了服务于全国广播、电视信息管理和决策的“GIS支持下的全国广播电视覆盖信息管理系统”。对构成系统的数据组成、数据库结构、主要功能模块、应用效果等情况进行了系统论述     

1996年6月1日甘肃天祝MS5.4地震的震源机制

１９９６年６月１日甘肃天祝ＭＳ５．４地震的震源机制董积平（国家地震局兰州地震研究所，兰州７３００００）主题词：甘肃震源机制解天祝１９９６年６月１日２２时４９分，在甘肃省天祝县发生了ＭＳ５．４地震。经甘肃省地震监测台网测定，该次地震的震中位置为北纬３７...     

EXPERIMENTAL STUDY ON EFFECTS OF HUMIDITY AND CHEMICAL COMPOSITION UPON IMAGINARY PART OF REFRACTIVE INDEX OF AEROSOL PARTICLES*

Experimental study is made of the relationship between the imaginary part of refractive index (IRI) of atmospheric aerosol particles and relative humidity,and between IRI and chemical element through the assay of chemical constituents of the particles.Evidence suggests that atmospheric humidity and aerosols' chemical ingredients have great effects on the IRI's and they should thus be considered in the research of the radiation properties of the particles in the atmosphere.