从时间序列中提取维数信息

作者介绍了分形和分维的概念、性质和意义，重点讨论了从一维时间序列中提取维数信息的方法，并给出了一些在天气和气候中的应用。     

辽宁地区活动断裂对输油管道影响的研究

本文对辽宁地区６个输油管道段两侧１０ｋｍ范围内的断层活动性进行了研究，其中有５条晚更新世－全新世断裂与管道相交，交叉点共有８处。在此基础上，重点研究了跨断层输油管道的震害特点，给出了不同地震烈度下剪切与弯曲破坏概率及震害预测结果。     

Non-stationary random seismic responses of non-uniform beams

In this paper, a direct Ritz method is presented for analysing the responses of non-uniform shear beams subjected to the action of an evolutionary random seismic excitation. Because of the use of a pseudo ground acceleration, time-dependent random responses can conveniently be calculated by solving a set of deterministic equations of motion. These responses include power spectral densities, variances and higher spectral moments of any required responses of the beam. A non-uniform beam example was solved and the time-dependent variances and second spectral moments of both the beam-top displacement and the beam-base shear force are given to show the simplicity and effectiveness of the method, which can also easily be applied to other continuous elastic structures.     

行星边界层内低涡的环流结构

本文研究了常见低涡在行星边界层内的环流结构,指出了在行星边界层内的摩擦作用下,较弱的低涡就可以导致明显的径向流动,产生从四周向低涡中心的辐合,使中心附近垂直运动达到中尺度垂直运动的量级。同时利用多参数摄动法对非定常轴对称减弱低涡进行了环流结构的演变分析。     

Mineralogical study of spinel-lherzolite inclusions from basalts in southern and eastern China

Ten spinel-lherzolite inclusions and one olivine-websterite inclusion, which were collected from Fujian, Jiangsu, Hebei and Yunnan Provinces, consist of olivine (FΦ_87.7–91.2), enstatite (En_87.3–89.7), Cr-diopside and spinel. According to the Mg/(Mg+Fe²⁺) ratios in the rocks and their mineralogies, they are designated to the Cr-diopside type. The websterite is composed of bronzite (En_71.9) and augite, while the gabbro-norite consists of hypersthene (En_68.9) and augite, belonging to the Al-augite type. The geothermos of spinel-lherzolites were calculated with four geothermometric methods, giving a temperature range of 925°–1,072°C. However, according to P. R. A. Wells' method, temperatures range from 845δ to 1,014°C, and by D. H. Lindsly's approach, from 716°–974°C. Pressures range from 15.1 to 19.8 kb. Genetically, Spinel-lherzolites and olivine-websterite are thought to have been derived from residual mantle material by partial melting at approximately 1,000°C and at a depth of about 50–70 km. Websterite and gabbro-norite may be products of the crystallization-differentiation of alkali basaltic magma.     

几种辅助设备在强震仪中的应用

本文介绍了GPS、eMODEM、DE-211串口设备服务器等辅助设备在GDQJ-2型固态地震动强度记录仪中的应用，包括各自的功能、作用、实现方法以及和强震仪的接口。     

泾阳4.8级地震前后重力变化探析

系统分析了泾阳Ms4．8地震前后陕西关中地区流动重力观测资料，探讨了重力场的时空变化及其映震特征。结果表明：①震前在震中区附近形成较显著地重力负异常区，且与沉降区基本吻合。②泾阳地震震中区既是重力变化梯度带，也是重力异常的正值区到负值区的过度带。③由于震源区应力作用方式是以水平为主的左旋走滑运动，震前局部重力异常不显著。     

南山坪古油藏的形成及其破坏因素分析

南山坪古油藏以南山坪背斜(圈闭)为依托，油藏的形成、破坏与背斜(圈闭)的形成及演化息息相关。加里东晚期-海西早期的构造运动形成了南山坪背斜的雏形，与之对应的是最初的油藏形成；南山坪背斜在印支运动得到加强，形成构造圈闭，与之对应的是原油藏裂解生气及烃源岩进入生气阶段，形成气藏及部分沥青。之后的燕山运动Ⅱ幕使得南山坪背斜(圈闭)被褶皱和断层复杂化，形成由东南向北西的逆冲断裂，其上覆盖层抬升、剥蚀，原油藏彻底破坏，成为古油藏。分析认为，南山坪古油藏的破坏因素主要是印支期的热裂解和燕山运动Ⅱ幕的构造抬升、剥蚀，且后者更为主导因素。比较南山坪古油藏、余杭泰山古油藏及威远气藏，力图寻找其共性及差异性，从而为中国南方的油气勘探提供借鉴意义。     

流动注射分光光度法同时测定水中挥发酚及氰化物

在单针进样器的基础上，增加一个三通流路同时进样，在线消解-流动注射分光光度法测定水中挥发酚及氰化物。实验结果表明，挥发酚浓度在0mg/L～0．2mg／L、氰化物浓度在0mg/L～0．5mg／L范围内具有良好的线性关系。通过在线气体扩散分离技术，提高了分析速度，每小时可完成12个～15个样品的分析。方法的相对标准偏差〈5％，回收率在90．4％～108．5％之间。     

大型抽水试验的水文地质意义

本文以山东省东阿县下马头水源地为实例,探讨了大型抽水试验的主要水文地质意义,包括:确定地下水的主要补给来源及方向,抽水影响范围及程度,水源地岩溶含水层的富水性及供水保证能力,水源地附近地下水与地表水之间的水力联系,水源地附近主要断裂构造的水力性质,水源地抽水对下游水源地的影响以及水文地质参数与水源地地下水允许开采量计算。