河东煤田地史—热史模拟与煤变质演化

河东煤田是华北石炭二叠纪重要煤田之一．本文采用盆地数值模拟方法,建立了煤田地史一热史模型,恢复了煤变质演化历程,总结出煤级分布规律。     

地震通信电台架设最佳方法的初探

本文着重讨论了地震通信电台的合理布网,电台天线和电台架设中的问题。并提出了电台架设中应该注意解决的一些共性问题,其目的是为了对地震通信用电台架设的最佳方法进行一次试验性的初探。     

云南楚雄台水管倾斜仪潮汐因子变化与澜沧—耿马地震

本文对楚雄台水管倾斜仪1986年～1988年观测的数据,用莱柯拉兹方法初步进行了潮汐波分析。并对可能与澜沧—耿马地震有联系的异常情况进行了论述。     

Flow against dispersion in two-dimensional regions

In field applications, upstream spreading of contaminant plumes may be controlled by the flow of fresh water in a direction opposite to the dispersive expansion direction of the plume. In the current literature this type of control is identified as flow against dispersion or contrary flow. In this study analytic methods are used to investigate contrary flow conditions for two-dimensional applications. In particular, special attention is given to the dispersive spread of the contaminant plume in the transverse direction under equilibrium flow against dispersion. Typical problems analyzed emphasize the effect of adsorption and transverse dispersion on the overall control process. Problems analyzed indicate that equilibrium flow velocities deduced from one-dimensional analysis, which may balance the dispersive spread of the plume in the longitudinal direction, represent an over design condition when these equilibrium velocities are compared with the conditions generated from a two-dimensional model for a downstream source which is finite in the transverse direction.     

连续流动化学发光法测定地质样品中痕量金

根据Au(Ⅲ)离子催化过氧化氢氧化鲁米诺原理,研究成功了连续流动化学发光法测定地质样品中痕量金的方法。样品用盐酸、过氧化氢及溴水分解后,在巯基棉柱中进行了分离和预富集。方法检出限为2×10~(-10)gAu/ml,工作曲线线性范围为2×10~(-10)—1×10~(-5)gAu/ml。对于2×10~(-9)gAu/ml和2×10~(-8)gAu/ml的变异系数分别为5.7％和3.0％。     

山地自然灾害（以泥石流为主）及其防治

我国是一个山地自然灾害严重的国家,尤其是泥石流、滑坡灾害。八十年代以来山地自然灾害频繁,泥石流、滑坡所造成经济损失超过30亿元。本文分析了灾害成因、分布特征以及山地自然灾害的预报和防治。     

硅岩研究的进展

回顾了国外硅岩的研究历史，概述了当今的研究现状和未来的发展趋势，并与我国同一领域的研究状况作了对比分析，提出了改变国内硅岩研究落后现状的几点建议。     

Potentials of community-based tourism in transformations towards green economies after the 2008 Wenchuan earthquake in West China

This study investigates the contrasting sceneries of community-based tourism after the 2008 Wenchuan earthquake and focuses on the potentials of tourism in transformations towards green economies. How are tourism and environment linked in a sustainable relationship? And how can potentials of community-based tourism be directed in transformations towards green economies? A qualitative research design is used to examine contrasting sceneries and specific green elements of community-based tourism in a Qiang people's fortress village in Mao County, Sichuan Province, West China and further discuss how tourism can be compatible with human wellbeing through demonstrating a commitment to sustainable development. The study argues that potential economic, social and environmental costs of tourism need to be considered when evaluating the loss of community benefits toward sustainability. The green elements suggest the potential of community-based tourism in transformations towards green economies, involving green agricultural, green building, and green energy, green governance, green service and green consumption. This study will contribute to the debate about the relationship between tourism and environment sustainability in the green economies, as well as the critique of what can be learned for community development from green tourism in mountainous regions after the inevitable natural disasters.