Concept

Énergie thermique

Publications associées (81)

3-D Shape Estimation of DNA Molecules from Stereo Cryo-Electron Micro-Graphs Using a Projection-Steerable Snake

Michaël Unser, Thierry Blu, Mathews Jacob

We introduce a three-dimensional (3-D) parametric active contour algorithm for the shape estimation of DNA molecules from stereo cryo-electron micrographs. We estimate the shape by matching the projections of a 3-D global shape model with the micrographs; ...

IEEE2006

LTCC thermal gas viscometer – heater module

Peter Ryser, Thomas Maeder, Caroline Jacq, Hansu Birol, Giancarlo Corradini

In this work, a novel sensor for measuring the viscosity of a gas, based on the combination of a heating cavity, a pressure sensor and a meander with a high resistance to flow, all integrated in low-temperature co-fired ceramic (LTCC) technology, is presen ...

2006

Hot Adsorbate-Induced Retardation of the Internal Thermalization of Nonequilibrium Electrons in Adsorbate-Covered Metal Nanoparticles

Hubert Girault, Christophe Bauer, Jean-Pierre Abid

Femtosecond transient absorption spectroscopy has been used to investigate the electron-electron scattering dynamics in sulfate-covered gold nanoparticles of 2.5 and 9.2 nm in diameter. We observe an unexpected retardation of the absolute internal thermali ...

2006

Numerical modelling and experimental analysis of a tubular dense ceramic oxygen separation membrane, for the application of partial oxidation of natural gas to synthesis gas

Jan Van Herle

The project addresses the problem of chemical and mechanical stability of dense ceramic oxygen separation membrane for the partial oxidation (POX) of methane to synthesis gas. In operating conditions, the membranes are exposed to strong thermal and composi ...

2005

Bond- and mode-specific reactivity of methane on Ni(100)

Plinio Maroni

In this work, the state-resolved reactivity of methane excited to different C-H stretch vibrations have been measured on a Ni(100) surface. Two kinds of experiments have been performed. In the first series of experiments, we have measured the reactivity of ...

EPFL2005

Shape Estimation of 3-D DNA Molecules from Stereo Cryo-Electron Micro-Graphs

Michaël Unser, Thierry Blu, Mathews Jacob

We introduce a 3-D parametric active contour algorithm for the shape estimation of DNA molecules from stereo cryo-electron micrographs. We consider a 3-D filament (consisting of a B-spline skeleton and a specified radial profile) and match its projections ...

IEEE2004

Efficient Energies and Algorithms for Parametric Snakes

Michaël Unser, Thierry Blu, Mathews Jacob

Parametric active contour models are one of the preferred approaches for image segmentation because of their computational efficiency and simplicity. However, they have a few drawbacks which limit their performance. In this paper, we identify some of these ...

IEEE2004

Optimisation of integrated energy systems for remote communities considering economic, LCA factors and gaseous emissions with evolutionary algorithm

Xavier Pelet

Nowadays the methods of design, planning and managing of integrated energetic systems which allow an overall view of all possibilities are still embryonic. However, this first phase of the design is crucial if we want to aim at a better resources managemen ...

2004

Temperature measurements and numerical analysis of the heat transfer in samples submitted to electron discharge machining (EDM)

Michel Rappaz

Matter removal in the electron discharge machining (EDM) is essentially due to a thermal mechanism. The control of the thermal process (i.e. the time dependent energy flow given by the discharge and the local temperature evolution) is therefore of crucial ...

IEEE2004

Run-to-Run Control of DC-Sputtering Processes

Dominique Bonvin, Denis Gillet

A new nonlinear model is proposed for describing the rela-tionship between the relevant inputs and outputs of a DC-magnetron sputtering system used in a manufacturing line for digital-compact discs and analogous optical data-storage devices. It is shown th ...

2001

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