[1] Nicaraguan volcanoes show globally high concentrations of geochemical tracers from dehydration of subducting crust, which may reflect a slab with unusually high amounts of H2O. To test this possibility, we measure seismic velocities at the top of the subducted plate and compare them with predictions for hydrated mafic rocks. Regional seismic P waves for intraslab events at 100–150 km depth ...

By arranging the control parameters, we examine whether mass varying neutrino model PRD 103, 063540 (2021), enabling one to unify inflation with present dark energy, can be used for producing an early energy. The works in following way. At stages of Big-Bang, inflaton trapped minimum at $\phi = 0$ gets uplifted due interaction neutrinos and starts roll down degenerate minima effective potential...

the present article seek to investigate the function of elliptical steel damper function in steel frames seismic resisting. the elliptical damper is a kind of earthquake energy dissipater in structure which acts based on the steel yielding feature. thus, this damper in frame lateral displacement mechanism is expected to have a satisfying hysteretic behavior in terms of energy absorption is on a...

Dynamic mechanical activity in a tunnel can be measured as ground vibrations at offset distances. These signals can be processed in sensing algorithms for detection, location, and discrimination of the activity. The objective of this work is to demonstrate that seismic simulations can reveal the effect of the environment on seismic energy as it propagates from tunnels. Using massively parallel ...

The flow of deformable particles, such as droplets, dragged by a fluid, through network narrow pores inside rocks or other porous media is key in range applications, from enhanced oil recovery and water filtration to lab on chip sorting cells. collective dynamics its impact the are poorly understood. Here, using droplets prototype, we show that transport can occur for conditions under which sin...

It is hypothesized that interplay of earthquake, soil, foundation and structure (SFS) dynamic characteristic, and their interaction in time domain, control the behavior of SFS system during earthquakes. Moreover, (passive and active) control of spatial and temporal location of seismic energy dissipation (preferably in soil) can improve safety and economy of SFS systems. Such energy dissipation ...

The external walls are regarded as an important source for the thermal exchange between the outside and inside of a building. Despite the significance of building walls for energy savings, a large body of research has focused mainly on thermal comfort, environmental impacts, and economic costs of residential buildings. However, few researchers have addressed the thermal performance of common bu...

We study the formation of marginally trapped surfaces in the head-on collision of two shock waves in de Sitter space-time as a function of the cosmological constant and the energy of the shock wave. For D = 4 it is shown that there exists a critical value of the ratio of these quantities above which no solution to the trapped surface equation is found. For the ratio below the critical value the...

A proof is provided of a strong law of large numbers for a one-dimensional random walk in a dynamic random environment given by a supercritical contact process in equilibrium. The proof is based on a coupling argument that traces the space-time cones containing the infection clusters generated by single infections and uses that the random walk eventually gets trapped inside the union of these c...