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Rapid solidification of Al-Cu droplets of eutectic composition was carried out using Impulse Atomization (a type of drop tube). Two distinct morphologies were observed: an irregular undulated eutectic assumed to form during recalescence, followed by a regu ...
The Rhône River, second largest in Switzerland, has already been corrected twice (1863-1893; 1930-1960) to ensure safety and economic development in the Rhône valley. However, in October 2000, the highest flood of the century occurred showing the limitatio ...
The COVID-19 pandemic has undergone frequent and rapid changes in its local and global infection rates, driven by governmental measures or the emergence of new viral variants. The reproduction number Rt indicates the average number of cases generated by an ...
NATL ACAD SCIENCES2021
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As a non-verbal communication mean, head gestures play an important role in face-to-face conversation and recognizing them is therefore of high value for social behavior analysis or Human Robotic Interactions (HRI) modelling. Among the various gestures, he ...
2015
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In this paper, we present an analysis of the impact of perceptions on transport mode choice. Traditional revealed preference surveys very often only involve questions leading to the collection of quantitative data, discrete or continuous, but little attent ...
2011
Nous introduisons, par cet article, une nouvelle rubrique de la revue Flash informatique EPFL qui sera dédiée au logiciel libre/open source et à l’esprit du libre en général. Après un rappel des enjeux du logiciel libre dans la société actuelle, nous prése ...
This paper investigates the structural behavior of reinforced concrete (RC) arch-shaped members without transverse reinforcement subjected to bending. Such members have typical applications in tunnels, cut-and-cover structures, shells, vaults, ducts, silos ...
This paper presents a validation of numerical simulations in case of a forced oscillating hydrofoil. As a representative case study for vibrating blade in hydraulics machines, a 2D NACA 0009 oscillating hydrofoil is considered. Pressure coefficients from e ...
2007
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La mutation globale principale à laquelle l'avenir doit faire face est le réchauffement climatique. Le fonctionnement du monde actuel doit adapter ses pratiques autant à grande échelle qu'individuellement. La question de l'énergie se dégage alors comme un ...
2009
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This article describes some techniques for implementing low- power clock and data recovery (CDR) circuits based on gated- oscillator (GO) topology for short distance applications. Here, the main tradeoffs in design of a high performance and power-efficient ...