Possible mediatory roles of heat acclimation and salicylic acid in protecting the sporophyte of marine macroalga Laminaria japonica(Phaeophyceae) from heat stress were studied.Heat stress resulted in
Recently,effects of Earths curvature and radial heterogeneity on coseismic deformations are often investigated based on the 2004 Sumatra earthquake.However,such effects are strongly related to earthqu
The energy radiated as seismic waves strongly depends on the fault rupture process associated with rupture speed and dynamic frictional mechanisms involved in the fault slip motion.Following McGarr an
Several studies on earthquake occurrence and associated faulting have demonstrated that both phenomena have a scale-invariant behavior which can be analyzed by means of a set of non-integer dimensions
We used 71670 P-wave arrival times from 3594 earthquakes recorded by the Sichuan and Yunnan seismic networks to determine the three-dimensional P-wave velocity structure in the crust and uppermost man
At first time,we observed the postseismic deformation,which actually is a kind of creep after slip,along the intra-plate active fault associated with the Wenchuan earthquake.To understand the near-fie
1997年Geller等人曾发表"地震不能预报",因为在自组织临界系统中尺度不变性是普遍存在的,而地球正处于自组织临界状态中,在这种状态下小地震具有某种概率,如瀑布般触发大的地震事件。但是在物理上,只有对应其地震震级的应力能量得到有效释放,才能有大地震的发生。利用对这种应力的依赖性可以进行地震预测,方法就是利用剪切波分裂来监控即将发生地震的周围岩体的应力积累。这项技术可以说是成功的,但是由于假定的
受仪器限制,地面旋转运动直到过去10年才被观测到。日本对地震近场旋转的观测(Takeo,1998)表明,地面旋转运动是经典弹性理论估计值的很多倍。由于利用类似Takeo所用的旋转传感器没有得到有价值的地面旋转运动,于是我们在台湾东部HGSD台站布设了灵敏得多的旋转速度传感器(R-1型)。在2004年12月7日至2006年11月12日的一期观测实施期间共记录到数百个地震。这主要是解决野外观测问题的一
Numerical analyses of earthquake effects on the deformation,stability,and load transfer of a slope covered by deposits are traditionally based on the assumption that the slope is a continuum.It would
With the global climate changes,the situation in coping with the natural disasters has become more serious and complicated.Many countries in the world focus on improving the technical support capacity