广西佛子冲地区成矿模式与矿模式研究

本文通过广西佛子冲铅锌矿田地质特征与成矿作用的阐述，建立了成矿模式及找矿模式，指出了该地区找矿工作的程序和方法。     

开封市郊区土地适宜性评价

本文采用模糊综合评价方法进行了开封市郊区的土地适宜性评价,并就土地适宜性评价基础、模糊综合评价模型等问题作了探讨。     

“临川青”石料地质特征及开发远景

近年,我们在江西省临川县茅排乡附近发现一种黑色岩石,貌似斜长闪角岩,实际上是一类煌斑岩。根据岩石颜色和商品石材的惯用名称,称之为“黑色花岗石”。按产地和颜色命名为“临川青”。它是一种中、高档产品,荒料和板材都可出售。加工试验表明,这种黑色花岗石料加工可行,商业上可销,经济效益好。按此三项指标权衡,“临川青”是一种可以开发利用的石料资源。1.石料矿体分布:本区黑色花岗石石材矿体主要分布在临川茅排乡附近,野外岩石露头多处,但集中分布在约2平方公里范围内。如黄家(土叚)矿体出露于茅排之北西,从茅排至黄家枚一带,可见多处露头。这些石料基本上无节理,少裂隙,质地坚硬,岩性新鲜,结构细粒     

Theoretical research on intensity envelope function of strong ground motion

（金星，瘳振鹏）Ｔｈｅｏｒｅｔｉｃａｌｒｅｓｅａｒｃｈｏｎｉｎｔｅｎｓｉｔｙｅｎｖｅｌｏｐｅｆｕｎｃｔｉｏｎｏｆｓｔｒｏｎｇｇｒｏｕｎｄｍｏｔｉｏｎ￥ＸｉｎｇＪＩＮａｎｄＺｈｅｎ－ＰｅｎｇＬＩＡＯ（ＩｎｓｔｉｔｕｔｅｏｆＥｎｇｉｎｅｅｒｉｎｇＭｅｃｈ...     

地图代数的符号化方法

根据地学数据库中符号的定位数据和符号码，使用点阵符号库中的符号数据进行符号化，由此得出的图形美观，生动，河流具有粗细变化，该方法简洁通用，具备数据独立性和程序独立性。     

混合胶束增溶体系光度法测定化探样品中微量铜的研究

三羟基萤光酮是一类高灵敏度显色剂,此类试剂与二价过渡金属离子的显色反应报道很少,我们就此类试剂与铜(Ⅱ)在CTMAB存在下的显色反应特征进行了初步的研究。本文研究了Cu(Ⅱ)-SAF-CTMAB-Brij-35混合表面活性剂体系,并就某些反应特征与相应的单一表面活性剂体系进行了比较研究。我们的实验表明:Cu-SAF-CTMAB-Brij-35体系具有更宽的适宜酸度范围,更高的灵敏度和更好的选择性。我们拟订了不经特殊分离测定化探样品及纯铝中的微量铜的分析方法,结果令人满意。     

大埋深条件下降雨入渗补给的初步分析

运用SWAP模型对太行山山前平原--河北省栾城县田间土壤水分运动进行了数值模拟.从土水势及土壤含水量等方面,初步分析了降雨灌溉入渗补给条件下土壤水分运动的规律.通过分析和讨论,探求了大埋深条件下降雨入渗过程,初步揭示了降雨入渗对地下水位变化的影响.     

THE STUDY OF STORM RAINFALL CAUSED BY INTERACTION BETWEEN THE NON-ZONAL HIGH LEVEL JET STREAK AND TYPHOON IN THE DISTANCE

In this paper, statistics were analyzed concerning correlation between the storm rainfall far from typhoon and non-zonal upper-level jet stream. The results show that the jet stream at 200 hPa is constantly SW (90.2 %) during the period in which storm rainfall occurs. Rainfall area lies in the right rear regions of the jet axes. While the storm intensifies, the jet tends to be stronger and turn non-zonal. With the MM4 model, numerical simulation and diagnosis were carried out for Typhoon No.9711 (Winnie) on August 19 to 20, 1997. The distant storm rainfall is tightly correlative to the jet and low-level typhoon trough. The divergence field of jet is related to the v component. The upper level can cause the allobaric wind convergence at low level. This is the result of the form of low-level typhoon trough and the strength of the storm. By scale analysis, it is found that there is a branch of middle scale transverse inverse circulation in the right entrance regions behind the jet below the 300-hPa level, which is very important to the maintenance and strengthening of storm rainfall. This branch of inverse circulation is relative to the reinforcement of jet's non-zonal characteristics. From the field of mesoscale divergence field and non-zonal wind field, we know that the stronger symmetry caused by transverse circulation in the two sides of the jet, rainfall’s feedback and reinforcement of jet’s non-zonal characteristics had lead to positive feedback mechanism that was favorable of storm rainfall’s strengthening.     

清除过程及对大气污染物的影响

清除过程能有效地清除大气中的许多污染物,针对城市空气质量预报需要,着重从理化方面介绍其清除机制.