Abstract The Tamins rock avalanche lies adjacent to the Flims avalanche, largest in Alps. Its deposit forms a ridge across Rhine Valley just downstream of confluence Vorderrhein and Hinterrhein rivers. is dominated by 1.6-km-long longitudinal ridge, Ils Aults, two roughly 600-m-long transverse ridges. Several extensional scarps bear witness spreading deposit. A breach through deposit, where Riv...

The Japanese spacecraft Hayabusa 2 visited the asteroid (162173) Ryugu and provided many high-resolution images of its surface, revealing that has a spinning-top shape with prominent equatorial ridge, much like shapes reported for some other asteroids. In this study, through dozens numerical calculations, we demonstrate during period fast rotation, ejecta from craters formed at lower mid-latitu...

New SHRIMP U-Pb zircon ages for the Portalegre and Alcáçovas orthogneisses document a complex pre- Variscan history for the Iberian basement in Portugal. The available geochemical and geochronological data for the Alcáçovas orthogneiss (ca. 540 Ma) tend to favor its involvement in a Cadomian orogenic event. This is consistent with the development of an active continental margin setting at the e...

This paper develops an Integer Linear Programming Model (ILPM) to find the optimal emplacement of low power base stations in order to resolve traffic congestion problem in hotspots within a LTE macro cell. A cost function represents the objective function inside the ILPM and it is restricted to the most important technical parameters in the planning networks process of design: user demand, cove...

The permeability k and porosity φ of vesicular basalts are measured. The relationship between k and φ reflects the formation and emplacement of the basalts and can be related to the crystal and vesicle microstructure obtained by image analysis. Standard theoretical models relating k and φ that work well for granular materials are unsuccessful for vesicular rocks due to the fundamental differenc...

Introduction [1]: Since their discovery, a variety of formation hypotheses have been proposed to explain the diversity of gully observations. These hypotheses can be divided into three broad categories: entirely dry mechanisms [2,3], wet mechanisms invoking groundwater release [4,5], and wet mechanisms invoking surficial meltwater [6,7,8]. It has been difficult to differentiate between these hy...

For refugees, arriving in a new place is inherently emotional – fraught with experiences of disorientation and fear the unknown but it can also be liberating result connections. This article explores series questions around how forced displacement experienced turned into local emplacement. It argued that important to recognize global migration grounded through attention ways which such processe...