查询词典 seismic

Under analysis the principle of the ant colony optimization, an improved ant colony optimization in solving the seismic data inversion problem is proposed.

蚁群算法具有正反馈性、分布式计算和贪婪式启发搜索的特点，克服了传统优化算法的缺陷。

ABSTRACT Parameter inversion of seismic wave is important not only in theory, but also in practice.

地震波参数反演具有重要的理论意义和实践意义。

It is an important content of sequence stratigraphy applying in exploration practice that predicting distribution of sandstone through using the seismic data to study deposition spatial distribution, superposition style and sediment evolution in the various system tracts on the basis of isochronal sequence framework.

在等时层序格架建立的基础上，利用地震资料研究各体系域内部沉积体的空间展布、叠置样式和沉积演化过程，进而预测各体系域中砂体的分布，是层序地层学应用于勘探实践的重要内容。

We first proposed macro-level seismic petrology should be based on minimum isochronous research unit, and take petrophysics research as prerequisite.

首次提出宏观层面的地震岩石学研究应以最小等时研究单元为基础、以测井岩石物理学研究为前提。

The formula of seismic intensity attenuation fitted by using 37 isoseismal lines of 14 earthquakes in Shandong and near area.

一、前 -j-J 目地震烈度衰减方程是工程地震危险性分析中的不可缺少的主要参数之一。

The directions of seismic source rupture for 151 historical moderate strong earthquakes occurred in Yunnan region have been determined by using aftershock sequence data and isoseismal line data.

利用等震线和余震序列资料，主要研究了云南地区 1 51次中、强震的震源破裂方向资料，给出云南地区中强地震震源破裂的空间展布图像。

Based on the latest intensity data of North China that include 48 earthquakes and 139 isoseismal lines, the attenuation relationship of seismic intensity is obtained.

除了(1)式之外，有的研究者还采用了如下形式的经验公式：I=A+BM-ln(R+R0)+ε(2)由于地震烈度衰减规律是通过对烈度数据进行统计回归而得到的，而使用衰减关系式进行的直接回归会存在种种不足，因此，前人根据地震烈度衰减的特点提出了不同的统计模型和方法。

When the isoseismal line or seismic hazard record is missing, both historical earthquake and probabilistic scenario earthquake can not reflect earthquake disaster accurately.

设定地震包括确定性和非确定性设定两种方法，确定性方法基于构造或历史地震，非确定性方法是基于概率危险性方法，用于估计区域或城市未来可能遭遇的地震危险。

The analysis of the aftershocks with M≥4.0, fault strike direction in seismic region and the long axis of isoseismal shows Gozhaco fault is the seismogenic structure. According to the Harvard focal mechanism, the normal break of Gozhaco fault leads to the Yutian earthquake under the NS direction regional stress.

综合分析Ms≥4.0余震分布、震区断裂性质以及等震线长轴方向等资料，认为郭扎错断裂是这次地震的发震构造；据Harvard震源机制解分析，这次地震是在近NS向力的作用下，郭扎错断裂发生略带走滑分量的拉张破裂所致。

In this study, the authors first interpret faults along their 3 seismic profiles starting from the western part of the basin. Sensitivity Te tests were carried out for all the three profiles based on the flexure isostasy model.

本文选取曾母盆地西部的三条典型地震剖面，在构造解释的基础上，按照挠曲均衡原理，通过对三条剖面的反演模拟，对Te进行了敏感性测试。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。