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Self-organization in bird flight formations using diffusion adaptation

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Stability Analysis of a Partitioned Fluid-Structure Thermal Coupling Algorithm

Pénélope Leyland, Ojas Joshi

Numerical multiphysics coupling is gaining more and more importance in engineering. Partitioned algorithms are among the most efficient methods to solve the coupled problem. However, they present some drawbacks, with the stability of the algorithm itself b ...

Amer Inst Aeronautics Astronautics2014

Sensing the real world

Juri Ranieri

A sensor is a device that detects or measures a physical property and records, indicates, or otherwise responds to it. In other words, a sensor allows us to interact with the surrounding environment, by measuring qualitatively or quantitatively a given phe ...

EPFL2014

Real-Time High-Precision Reading Algorithm for the Ironless Inductive Position Sensor

Alessandro Danisi, Alessandro Masi

This paper presents a novel reading algorithm for an ironless inductive position sensor which exhibits immunity to single-frequency interference (both for high and low frequency signals). This algorithm is based on the three-parameter sine fitting, whose p ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Joint reconstruction of misaligned images from incomplete measurements for cardiac MRI

Pierre Vandergheynst, Gilles Puy, Gabriele Vincenzo Bonanno

We present a novel method for robust reconstruction of the image of a moving object from incomplete linear measurements. We assume that only few measurements of this object can be acquired at different instants and model the correlation between measurement ...

2013

Modeling Bird Flight Formations Using Diffusion Adaptation

Ali H. Sayed

Flocks of birds self-organize into V-formations when they need to travel long distances. It has been shown that this formation allows the birds to save energy, by taking advantage of the upwash generated by the neighboring birds. In this work we use a mode ...

IEEE2011

Infinite integrals with the weighted averages algorithm

Juan Ramon Mosig

A new version of the weighted averages (WA) algorithm, called generalized WA, is introduced. Generalized WA exhibit a more compact formulation, devoid of iterative and recursive steps, and a wider range of applications. It is more robust, as it provides a ...

2011

Thermal soaring flight of birds and unmanned aerial vehicles

Severin Leven

Thermal soaring saves much energy, but flying large distances in this form represents a great challenge for birds, people and unmanned aerial vehicles (UAVs). The solution is to make use of the so-called thermals, which are localized, warmer regions in the ...

2010

Swift Algorithms for Repeated Consensus

André Schiper, Martin Hutle, Fatemeh Borran, Nuno Filipe de Sousa Santos

We introduce the notion of a swift algorithm. Informally, an algorithm that solves the repeated consensus is swift if, in a partial synchronous run of this algorithm, eventually no timeout expires, i.e., the algorithm execution proceeds with the actual spe ...

EPFL2010

Swift Algorithms for Repeated Consensus

André Schiper, Martin Hutle, Fatemeh Borran, Nuno Filipe de Sousa Santos

Ieee Computer Soc Press, Customer Service Center, Po Box 3014, 10662 Los Vaqueros Circle, Los Alamitos, Ca 90720-1264 Usa2010

ON CORRELATING BIRD MIGRATION TRAJECTORY WITH CLIMATE CHANGES

José Antonio Fernandes de Macedo, Janaina Oleinik Moura Rosa

Climate changes are expected to affect bird migration in several aspects including timing changes, breeding and migration orientation. The correlation analysis of several climate conditions (e.g. temperature, wind, humidity, etc) and bird migration traject ...

2009