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Electrically tunable optofluidic light switch for reconfigurable solar lighting

Publications associées (33)

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Towards microstructured glazing for daylighting and thermal control

Jean-Louis Scartezzini, Andreas Schueler, André Gabriel Kostro, Mario Geiger

Glass is a central element to modern architecture and can cover up to 100% of a building façade. The main purpose of large glazed areas is to create bright, comfortable and healthy spaces. It was shown that increasing natural light in offices reduces sickn ...

EPFL2011

Single Channel Speech Separation with a Frame-based Pitch Range Estimation Method in Modulation Frequency

Computational Auditory Scene Analysis (CASA) has attracted a lot of interest in segregating speech from monaural mixtures. In this paper, we propose a new method for single channel speech separation with frame-based pitch range estimation in modulation fre ...

2010

Hierarchical and Parallel Processing of Modulation Spectrum for ASR applications

Hynek Hermansky, Fabio Valente

The modulation spectrum is an efficient representation for describing dynamic information in signals. In this work we investigate how to exploit different elements of the modulation spectrum for extraction of information in automatic recognition of speech ...

2008

This paper investigates the combination of evidence coming from different frequency channels obtained filtering the speech signal at different auditory and modulation frequencies. In our previous work \cite{icassp2008} ...

2008

IDIAP2007

Comfort and well-being in solar buildings - Results from a European Audit

Claude-Alain Roulet

ABSTRACT : The Energy Performance of Buildings Directive (EPBD) requires EU member states to establish a methodology for calculating the energy performance of buildings within a framework that includes the effect of active and passive solar systems as well ...

2006

Integration of Solar Energy Technologies in Switzerland : From Building to Nanoscale

Jean-Louis Scartezzini

The Solar Energy and Building Physics Laboratory of the Ecole Polytechnique Fédérale de Lausanne (EPFL) has been involved in research and technological development of solar energy for building applications since the middle of the seventies. Focusing first ...

2006

Innovative bidirectional video-goniophotometer for advanced fenestration systems

Marilyne Andersen

Efficient collection and redistribution of the direct and diffuse components of daylight in buildings remains a major objective of advanced fenestration systems. Such systems, including novel solar blinds, new glazing or coating materials and daylight-redi ...

EPFL2004

Mesure de traces de gaz à l'aide de lasers à semi-conducteur

Infrared spectroscopy using semiconductor lasers is a promising technique for trace gas detection. It allows a continuous and real time monitoring of several species, with a high sensitivity and a good selectivity. Among all the possible methods two are pa ...

EPFL2002

Light distribution through advanced fenestration systems

Marilyne Andersen

Most energy-saving applications of advanced fenestration systems, e.g. solar blinds, novel types of glazing and daylight redirecting devices, require a precise knowledge of their directional light-transmission features. These photometric properties are des ...

Taylor & Francis2002