海南福山凹陷油气勘探实践与认识

南方石油勘探开发公司通过地震攻关,克服了火成岩地震屏蔽难题,在海南福山凹陷油气勘探中取得了新成果;并提出了一套适用于南方中新生代复杂小盆地的油气勘探程序、方法与技术。     

古旧建筑防雷设计与施工技术方法

在昆仑关纪念碑和广西高等法院办公楼旧址的雷电防护工程实践中，按照还原古旧建筑本来特征，结合古旧建筑的维护工作，对古旧建筑雷电防护及施工工艺进行设计。     

接地电阻测量中应注意的几个问题

参照国家有关规范和标准的要求,对接地装置、接地电阻及其测量原理进行分析和总结,指出4102型和摇表式接地电阻仪测量接地电阻时电极的布置方法对测量结果的影响。     

The effects of seismic rotations on inertial sensors

With the important increase in the number of instruments, especially in the near field of quite significant earthquakes, unsaturated traces have led seismologists to question what they are really measuring. We have performed a review of previous studies related to the effects of rotations on both horizontal and vertical components of various sensors. Illustrations of near-field records show that the recovering static displacement requires an accurate rotation estimation that present-day seismometers cannot achieve. Estimations of coseismic tilts (rotation around an horizontal axis) using seismometers cannot be achieved independently of translational motion. Therefore, for specific configurations such as near-field or long-period far-field, reconstruction of the ground motion requires specific rotation measurements. Effects of the Chi-Chi earthquake (1999) on accelerograms make the static displacement estimation unreliable. For long-period background noise, far-field horizontal seismic signals present unexpected N45° polarization, which is explained by the similar influence of the rotation around the vertical axis on the two horizontal components. For the GEOSCOPE network, this feature has been seen for stations with a Streckeisen STS-1 sensor, while those with a Streckeisen STS-2 sensor do not show this polarization feature. This study suggests that sensor installation should follow a protocol that will better guarantee the verticality of the sensors. Moreover, rotational recordings with ad hoc sensors are necessary, and by adequately correcting the traces, they will enable us to reconstruct the translational motion from recorded seismic signals.     

Behaviour of the double concave Friction Pendulum bearing

The double concave Friction Pendulum (DCFP) bearing is an adaptation of the well‐known single concave Friction Pendulum bearing. The principal benefit of the DCFP bearing is its capacity to accommodate substantially larger displacements compared to a traditional FP bearing of identical plan dimensions. Moreover, there is the capability to use sliding surfaces with varying radii of curvature and coefficients of friction, offering the designer greater flexibility to optimize performance. This paper describes the principles of operation of the bearing and presents the development of the force–displacement relationship based on considerations of equilibrium. The theoretical force–displacement relationship is then verified through characterization testing of bearings with sliding surfaces having the same and then different radii of curvature and coefficients of friction. Lastly, some practical considerations for analysis and design of DCFP bearings are presented. Copyright © 2006 John Wiley & Sons, Ltd.     

复杂线状符号的设计及优化算法研究

针对地图线状符号中的需求，提出了利用自定义线型设计线状符号的新方法，以解决常规线型符号绘制的问题。此外，考虑到线状符号在拐角处易产生严重变形以及出现断裂、自相交等情况，提出了采用符号自适应性及双仿射变换方法的解决途径，实现符号化绘制，增强符号的可视化效果。     

关于变形极坐标法定点问题的探讨

对变形极坐标法定点问题（危险区域、多值或双值解），根据规范和待定点P的性质，排除危险区域、多值或双值解的产生，论证对变形极坐标法定点的可行性、实用性。     

Application of non-stationary Poisson model prediction on seismic belts in northwestern of China

Earthquake probability prediction is based on earthquakes occurred in a certain seismo-tectonic region topredict the probable times and probability of certain magnitude segment earthquake or the earthquake whose mag-nitude is larger than certain magnitude low limit in the coming certain period, this was extensively applied toearthquake risk analysis and earthquake forecast.……     

凹凸棒石酸活化废液制备LDH实验研究Ⅰ:合成方法和表征

在利用凹凸棒石生产活性白土过程中，大量形成的凹凸棒石酸活化废液造成了严重的环境问题。用凹凸棒石酸活化废液制备LDH(层状双氢氧化物)。一方面得到了LDH。同时也为解决活性白土生产过程中的废水污染提供了一条有效途径。利用TEM和XRD研究了凹凸棒石粘土活化废液制备阴离子粘土微观结构特征，并对这种材料的形成机制以及应用前景进行了讨论。     

用双稀释法测定地质样品中的铅同位素组成

随着超净化实验室条件的完善以及多接收同位素质谱技术的成熟，铅同位素双稀释法倍受关注。用双稀释法测定铅同位素比值的方法原理，以及^204Pb—^207Pb双稀释剂的配制和标定方法。通过对标准物质NBS981和地质样品的分析测定，表明用双稀释法测定铅同位素比值，可以有效校正由质谱分析造成的同位素分馏效应，从而提高分析结果的精度和准确度。