In this paper, in addition to introduce a hybrid structural system contained local isolators and dampers, its behavior and functional capabilities were studied on a conventional structure. For this purpose, an RC frame building with six-story was designed based on valid codes and then, in four cases based on the number of spans, it was split into two separate adjacent frames. Base isolation was...

Localized dynamic pressure pulses in the magnetosheath, or jets, have been a popular topic for discussion recent decades. Studies show that they can propagate through magnetosheath and impact magnetopause, possibly showing up as geoeffective elements at ground level. However, questions still remain on how be. Previous studies limited to case during few days with only handful of events. In this ...

local site conditions have a strong effect on ground response during earthquakes. two important soil parameters that control the amplification effects of seismic motions by a soil column are the soil hysteretic damping ratio and shear wave velocity. this paper presents the results of in situ damping ratio measurements performed using continuous surface wave attenuation data at a site in semnan ...

We show that ground state solutions to the nonlinear, fractional problem \begin{equation*} \begin{cases} (-\Delta)^{s} u + V(x) = f(x,u) & \text{in } \Omega, \\ 0 \R^N \setminus \end{cases} \end{equation*} on a bounded domain $\Omega \subset \R^N$, converge (along subsequence) in $L^2 (\Omega)$, under suitable conditions $f$ and $V$, solution of local as $s \to 1^-$.

The mining-induced ground response (MIGR) has a critical impact on safety management, the mining plan, and entry support. A clear understanding of characteristics is foundation MIGRs scientific control. This study result development non-pillar panel with gob-side by roof cutting (GSERC). Comprehensive research in situ measurements, numerical simulation, theoretical analysis to determine charact...