广东省台网震级ML的台站校正值

利用广东省地震台网多年的观测资料,选取了481个地震的数据计算了19个台站的M_L震级校正值。初步的结果表明,震级校正值受震中距、震级等因素影响较小,可以满足实际工作要求。     

Li_xNiO中锂离子扩散行为研究

本文利用单阶跃电流法测得了Li_xNiO(0相似文献   

最优化波数在点源二维有限元正演计算中的应用

文章结合地电模型给出了计算误差随最优化波数个数的变化曲线,揭示出该曲线上存在突降稳定点,这一规律使计算所需波数大大减少。研究还发现误差随网格加密参数曲线上也存在突降稳定点。上述规律的发现可以大大节省二维有限元正演的计算时间,使之在反演中的充分应用成为可能。     

ATMOSPHERIC WAVE AND ITS PHYSICAL ESSENCE AS REVEALED BY CHANGED CORRELATION COEFFICIENTS AND CORRELATION FIELD*

Formal change is made of the correlation coefficient(COCOEF) expression,leading to a new formula consisting of Fourier spectral coefficients that indicates a direct connection between the new form and atmospheric dynamic equations,thus resulting in a dynamic equation represented by COCOEF,which is meaningful in exploring a large-scale dynamic process in terms of the correlation field because the connection revealed by the field can have dynamic explanation with the aid of the new formula.     

相关分析方法在长春台1989年地磁观测报告审校修改过程中的应用

对长春台１９８９年地磁观测报告审校、修改过程中，根据地磁日变化在相当范围近似一致性的特点，采用数理统计方法，作相邻两台观测数据的相关分析，检查并修改了该报告存在的许多内在质量问题，同时对某些缺记或仪器工作不正常时段作了修改或补图。     

石油地震勘探中薄互层的反射系数序列振幅谱特征分析

通过对一层、二层及多层，厚度为有序递度的薄互层组地震地质模型的反射数系列振幅谱特征与薄互层组内单层厚度，子结构厚度，互层组内层数等关系分析，指出薄互层组内单层厚度或子结构度是决定反射系数序列振幅谱特征的基础，互层纳内层数是主要的影响因素。     

关于卡拉谢夫法相关准则的分析论证

对卡拉谢夫法中的相关准则进行了分析论证。从不同的内插方法和相关系数形式出发，提出几种表达相关准则的计算公式，并就实际工作中遇到的一些问题作了分析和讨论。     

500百帕大气环流对云南地震的影响和震级的预测

本文用北半球５００百帕大气月均高度场资料，与云南地区每年发生的最大地震的震级作相关分析，选出其中影响地震的主要环流因子，分别构成每年上半年和下半年的最大震级预报方程。经三年的预报试验，效果尚好。     

空间运输联系的生成与增长规律研究

空间运输联系是指在自然、社会、经济诸要素综合作用下，区域间通过交通运输设施进行旅客和货物的交流。区域差异与互补是空间运输联系产生的直接原因，交通设施是空间运输联系实现的基础。本文以世界不同类型国家和我国近半个世纪的运输活动及其社会经济背景值作为研究对象，采用定量与定性相结合的实证分析方法，经过归纳、演绎和推理，深入研究了运输联系生成的内在机制和增长演变的趋势，得出了旅客生成密度和客运强度随经济增长而增长、货物生成密度和货运强度随经济增长而降低的结论。在评价指标方面，提出了生成密度、运输强度等概念和指标，并对世界主要国家的运输发展进行了对比分析。     

Variation in the relationship of the Indian summer monsoon with global factors

Utilizing data for the long period 1871–1990, variation in the relationships between Indian monsoon rainfall (IMR) and tendencies of the global factors. Southern Oscillation Index (SOI) and the sea surface temperature (SST) over eastern equatorial Pacific Ocean has been explored. The periods for which relationships exist have been identified. Tendencies from the season SON (Sept-Oct-Nov) to season DJF (Dec-Jan-Feb) and from DJF to MAM (Mar-Apr-May) before the Indian summer monsoon are indicated respectively by SOIT-2/SSTT-2 and SOIT-l/SSTT-1, current tendency from JJA (June-July-Aug) to SON, by SOIT0/SSTT0, tendencies from SON to DJF and DJF to MAM following monsoon, by SOIT1/SSTT1 and SOIT2/SSTT2 respectively. It is observed that while the relationships of IMR with SSTT-1, SSTT0 and SSTT2 exist almost throughout the whole period, that with SOIT-1 exists for 1942–1990, with SOIT0 for 1871–1921 and 1957–1990 and with SOIT2, for 1871–1921 only. The relationships that exist with SOIT-1, SOIT2, SSTT-1, SSTT2 and with SSTT0 (for period 1931–1990) are found to be very good and those that exist with SOIT0 for periods 1871–1921 and 1957–90 and for SSTT0 for the period 1871–1930 are good. It is thus seen that the relationships of SOIT-1, SOIT0 and SOIT2 with IMR do not correspond well with those of SSTT-1, SSTT0 and SSTT2 with IMR respectively, even though SOI and SST are closely related to each other for all the seasons. SOIT-1 and SSTT-1 can continue to be used as predictors for IMRDuring the whole period, IMR is found to play a passive, i.e. of being influenced or anticipated by SSTT-1 as well as an active role, i.e. of influencing or anticipating SSTT2. This implies a complex and perhaps non-linear interaction between IMR and SST tendency from DJF to MAM. Possibly, this is a part of the larger interaction between Asian monsoon rainfall and the tropical Pacific. A possible physical mechanism for the interaction is indicated.