论文部分内容阅读
Based on calculations of the tidal Coulomb failure stress and investigations of the correlation between the Earth tide and the Ning’er earthquake sequence, the processes of fault nucleation and failure were simulated. In these simulations we consider the influence of tidal stresses using the rate- and state-dependent friction laws. Furthermore, the effects on tidal triggering due to the stress amplitude and periodic oscillation properties were investigated, and the triggering effects between the tidal normal and tidal shear stresses were compared. The results showed that the Ning’er earthquake sequence was a physical consequence of tidal effects. A transition period T_0 exists between the nucleation and failure processes of a seismic fault. When the period T of stress is equal to or becomes larger than T_0, the fault response becomes dependent on the periodic features of the loading stress; however, for T < T_0, the response of the fault is nearly independent of the period. Both the tidal normal and tidal shear stresses have similar effect in the nucleation and failure processes; the clock changes generally increase with the maximum amplitudes of the tidal stresses. Tidal normal and tidal shear stresses with positive amplitudes mainly induce earthquake triggering; however, the triggering effects induced by negative tidal stresses are smaller and faults are not sensitive to negative tidal stresses. Our results primarily reveal the physical mechanisms of tidal stress triggering.
Based on calculations of the tidal Coulomb failure stress and investigations of the correlation between the Earth tide and the Ning’er earthquake sequence, the processes of fault nucleation and failure were simulated. In these simulations we consider the influence of tidal stresses using the rate- and the state-dependent friction laws. Furthermore, the effects on tidal triggering due to the stress amplitude and periodic oscillation properties were investigated, and the triggering effects between the tidal normal and tidal shear accidents were compared. The results showed that the Ning’er earthquake sequence was a physical consequence of tidal effects. A transition period T_0 exists between the nucleation and failure processes of a seismic fault. When the period T of stress is equal to or becomes larger than T_0, the fault response becomes dependent on the periodic features of the loading stress; however, for T
其他文献
“九五”期间 ,重庆市市级医疗机构总投资3 3亿余元 ,新建或扩建了一批重点项目。目前 ,重庆市拥有 1 3所三级甲等医院 ,3所医药院校 ,4个国家重点学科 ,6个部省级重点实验室
今天的科技期刊编辑所面对的最大困扰之一是如何为及时发表许多已经写好并提交上来的优秀论文找到版面空间。Ambio也不例外。你总是在担心是不是错失了曾投稿到你杂志稿件中
在临床四肢静脉穿刺时 ,常会遇到小儿不配合操作 ,需其他人捏住被穿刺的肢体 ,穿刺才能顺利进行。若无其他人协助时 ,便给护士的操作带来一定难度。为此 ,我们设计制作一种使
现代教育教学活动中,运用了许多教育技术。他们将原本在书本上呈现的内容通过课件等多媒体的形式出现,让“形、声、色、光”的效果呈现其中。多媒体技术作为一种有效的方式,
前段时间读到加州伯克莱分校新闻学院院长Schell的一篇题为“China’s Dysfunctional Public Relations Barrage”(中国成效不佳的公关带来的障碍)的文章,文中提到“中国与
目的 探讨８Ｈｚ、１３０ｄＢ次声作用后Ⅰ、Ⅱ组代谢性谷氨酸受体（ｍＧｌｕＲ）ｍＲＮＡ在大鼠脑皮质的表达及意义。方法１２０只大鼠随机分为对照组及次声作用１、７、１４次组，次声作用组采用自制的次声压力仓，用８Ｈｚ、１３０ ｄＢ的次声，每次作
《卫生经济研究》杂志社、中国卫生经济学会卫生经济评价专业委员会、四川省卫生经济学会联合拟于２０００年４月中下旬在四川省成都市召开“面向新世纪的卫生改革与发展研讨会” (会期
很多人说到十年，脑中就会回荡起那熟悉的旋律，歌中唱出的爱情还有物是人非总是引起人们无限的回忆～～而对于一个只经历了一个整十年的我来说，这十年就是我的一切。 我生在长在西安，我对这座13朝古都的感情已不止于热爱，它是我的家，一个任何地方都不能比的归宿。十年来我见证了它的变化，虽然大的角度我还看不全面但是我看到了我天天年年走过的家到学校这两点一线上的不同。 温馨小窝 我们一家三条“航船”每天停靠
闪客江湖——对中国网络动画的文化解读 王颖吉著 7—5633—5930—3广西师范大学出版社 2006．09(0773)5806962 本书通过追溯Flash动画的技术先导和网络动画平民化扩散歷程，探讨中国六年来的闪客亚文化现象。将研究的焦点集中在技术所引起的亚文化生产问题上。比较全面而综合地对中国六年来的“闪客”文化现象做出比较系统的和有一定深度的描述研究。本书涉及闪客技术、人物、历史