Concept

Intégrateur symplectique

Publications associées (114)

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TTT - Cure diagram of an anhydride-cured epoxy system including gelation, vitrification, curing kinetics model and monitoring of the glass transition temperature

Véronique Michaud

The curing reaction of an epoxy resin [diglycidyl ether of bisphenol A (DGEBA)] combined with a methyl-hexahydrophtalic anhydride (MHHPA) hardener and a benzyldimethylamine (BDMA) accelerator was studied over a temperature range of 60140°C to build its is ...

2004

Mass Integration of a Deinking Mill

François Maréchal, David Brown

The obtimisation of water networks in a deinking mill has been carried out using Mixed Integer Non Linear Programming. The objective function included the costs of water and chemical usage, and of piping retrofitting. The constraints were stream compositio ...

2004

Influence of the Vertical Profile of Reflectivity on Radar-Estimated Rain Rates at Short Time Steps

Alexis Berne

The present study aims to demonstrate the major influence of the vertical heterogeneity of rainfall on radar–rain gauge assessment. For this purpose, an experimental setup was deployed during the HYDROMET Integrated Radar Experiment (HIRE-98) based on a co ...

2004

High-order localized time integration for grid-induced stiffness

Jan Sickmann Hesthaven

We discuss two time integration techniques, aimed at overcoming local grid-induced stiffness in discontinuous Galerkin methods. A local time-stepping approach, utilizing the local properties of the scheme, is shown to work very well. Recently developed add ...

ELSEVIER SCIENCE BV2003

The Scrambled Net Filter

Thomas Gsponer

The standard Kalman filter is a powerful and widely used tool to perform prediction, filtering and smoothing in the fields of linear Gaussian state-space models. In its standard setting it has a simple recursive form which implies high computational effici ...

2002

The Scrambled Net Filter

Thomas Gsponer

2002

Estimating equilibrium properties from non-Hamiltonian dynamics

Ursula Röthlisberger

We derived an expression that enables the accurate estn. of equil. properties using non-Hamiltonian dynamics. The major advantage of our scheme is that a time av. over a single non-Hamiltonian trajectory can be employed instead of an ensemble av. Hence, it ...

2001

Modelling, mathematical and numerical study of a solutal phase-field model

Daniel Kessler

We investigate a thermodynamically consistent isothermal solutal phase-field mode1 describing the solidification of a binary alloy. The system is characterized by two variables: phase-field and concentration. The phase-field locally describes the phase sta ...

EPFL2001

Energy integration of industrial sites: tools, methodology and applications

François Maréchal

One of the most important conclusions of the energy integration techniques is that energy efficiency can only be analyzed with respect to the pinch point location of the system. Therefore, the problem boundaries cannot be limited to the chemical process le ...

1998

Interactive identification of the center of mass reachable space for an articulated manipulator

Ronan Boulic

We propose an efficient kinematic position control for the center of mass of an articulated arm. The algorithm integrates the context of multiple joints reaching their limit value together with a singular configuration on the remaining joint space. We demo ...

1997