Concept

Heure d'été du Royaume-Uni

Publications associées (21)

Instrumental correction of the uneven PMT aging effect on the calibration constant of a water vapor Raman lidar

Bertrand Calpini, Valentin Simeonov, Salomon Fastig

The water vapor profile derived from Raman lidar measurements is obtained by taking the ratio of water vapor and nitrogen Raman-shifted signals. The proportionality factor that converts the signal ratio to water vapor/air mixing ratio is referred to as lid ...

Spie-Int Soc Optical Engineering2014

Prescribing for Daylight: Can We Account for the Disparate Measures Within A Unified Framework?

Marilyne Andersen

The potential for a building design to provide daylight for general illumination was, until very recently, evaluated using only the daylight factor, i.e. a ratio of internal to external illumination under a single standardised overcast sky. Other known eff ...

2012

Daylighting Metrics for Residential Buildings

Marilyne Andersen, Nicolas Roy

It is now widely accepted that the standard method for daylighting evaluation - the daylight factor – is due for replacement with metrics founded on absolute values for luminous quantities predicted over the course of a full year using sun and sky conditio ...

2011

A rules of thumb-based design sequence for diffuse daylight

Jean-Louis Scartezzini

This paper proposes and validates a daylighting design sequence for sidelit spaces. Since the design sequence uses the daylight factor as a performance metric, it is aimed towards spaces that primarily receive diffuse daylight. It should be complemented by ...

2010

Inertial effects in diffusion-limited reactions

Nicolas Dorsaz, Giuseppe Foffi, Francesco Piazza

Diffusion-limited reactions are commonly found in biochemical processes such as enzyme catalysis, colloid and protein aggregation and binding between different macromolecules in cells. Usually, such reactions are modeled within the Smoluchowski framework b ...

Institute of Physics2010

Coupling Thermal Simulation and Multi-Objective Coupling Thermal Simulation and Multi-Objective - Optimization for Blind Controller Design

Nicolas Morel, David Daum

In this paper we present results of computational experiments where multi-objective algorithms were used to tune a controller for blind movements in a room of the LESO experimental building. The blind controller which is based on fuzzy logic was optimized ...

EPFL2009

An intuitive daylighting performance analysis and optimization approach

Marilyne Andersen, Magali Bodart

The effective integration of daylighting considerations into the design process requires many issues to be considered simultaneously, such as daily and seasonal variations, illumination, and thermal comfort. To address the need for early integration into t ...

Taylor & Francis2008

Simplified approaches to mid-infrared spectrometers calibration for bioprocess monitoring applications

Jonas Schenk

This thesis aimed at developing new, simple methods of calibration for on-line monitoring of bioprocesses by Fourier-transform mid-infrared spectroscopy (FTIR). The conventional calibration approach implies the preparation and measurement of a large number ...

EPFL2007

Urban Form, Density and Solar Potential

Marylène Montavon, Raphaël Compagnon

Rapid urbanization in recent years has exerted tremendous pressure on urban development. In the face of the largely unexamined fashion for densification, it is vital that the environmental impact of compaction be researched. This study comprises solar simu ...

2006

Innovative bidirectional video-goniophotometer combining transmission and reflection measurements

Marilyne Andersen, Jean-Louis Scartezzini, Christian Roecker

To assess the daylighting performances of a building, one of the most commonly used quantities is the Daylight factor, which is defined for a given surface element inside the analysed room as the ratio of the inside and outside illuminances under a CIE ove ...

2004

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