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Artesian well

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Convection in Lakes

Alfred Johny Wüest, Damien Bouffard

Lakes and other confined water bodies are not exposed to tides, and their wind forcing is usually much weaker compared to ocean basins and estuaries. Hence, convective processes are often the dominant drivers for shaping mixing and stratification structure ...

2019

Stability of standing waves for a nonlinear Klein-Gordon equation with delta potentials

François Samer Genoud

In this paper, we study local well-posedness and orbital stability of standing waves for a singularly perturbed one-dimensional nonlinear Klein-Gordon equation. We first establish local well-posedness of the Cauchy problem by a fixed point argument. Unlike ...

2019

From Wallis to Ramanujan, in companionship with RW Gosper

Manuel Ojanguren

Accelerating the convergence of some hypergeometric series with Gosper's method leads, in a most elementary way, to some series discovered by Ramanujan, Bauer and Dougall. In particular, it is shown that one of them can be traced back to the well-known for ...

2018

Daylight in the built environment

Marilyne Andersen, Jean-Louis Scartezzini, Andreas Schueler, Jan Wienold, Silvia Coccolo, Magali Bodart

Relatively recent cultural and technological changes, particularly in Westernized societies, have led to habitat and lifestyle shifts that have gradually estranged us from daylight. Although human beings are resilient and appear able to cope with extreme v ...

Science/AAAS2017

Dust grain coagulation modelling: From discrete to continuous

Paola Paruta

In molecular clouds, stars are formed from a mixture of gas, plasma and dust particles. The dynamics of this formation is still actively investigated and a study of dust coagulation can help to shed light on this process. Starting from a pre-existing discr ...

Elsevier Science Bv2016

Perceptual, comfort and health aspects of natural lighting in a space

Marilyne Andersen

This presentation will explore the multifaceted nature of daylight performance in architectural spaces by discussing ongoing research regarding the dynamics of daylighting performance considering three interpretations of “well-being” in a space: as a human ...

2015

Carrier Mobility Extraction Methodology in Junctionless and Inversion-Mode FETs

Jean-Michel Sallese, Farzan Jazaeri

In this paper, we propose a new method to extract the free carrier mobility in junctionless (JL) double-gate FETs biased in accumulation. We show that, in addition to assuming a well-defined field-dependent mobility law, using the well-known Y-function is ...

Institute of Electrical and Electronics Engineers2015

On A Perturbation Bound For Invariant Subspaces Of Matrices

Daniel Kressner

Given a nonsymmetric matrix A, we investigate the effect of perturbations on an invariant subspace of A. The result derived in this paper differs from Stewart's classical result and sometimes yields tighter bounds. Moreover, we provide norm estimates for t ...

Siam Publications2014

Digital approaches in Electronic biochips

Carlotta Guiducci, Enrico Accastelli, Fabio Mario Spiga

Download Citation Email Print Request Permissions Save to Project Electronic biochips are defined by the merge of integrated electronics, containing diverse sensors, with reaction solution and sample hold in reaction chamber(s). Based on their overall stru ...

IEEE2013

Human needs as a driver for lighting design

Marilyne Andersen

Thanks to fundamental discoveries from neuroscience, biology and others, we have achieved a deeper understanding of how we interact with our environment. It is time to bring this knowledge back to architecture: we have access to the essential ingredients o ...

2013