Multiphysics Simulations of Tunneling Current Modulation using Ultra-Thin Membranes Micromachined on SOI
B. Bercu, L. Montès, G. Bacles, J. Zimmermann, and P. Morfouli
Institute of Microelectronics, Electromagnetism and Photonics, Grenoble
In this paper, we study a novel type of NEMS - tunnel junctions mounted on thin membranes. Mechanical stress applied to the junction induces changes in the height and length of the barrier, allowing the modulation of the tunnelling current.
H. Szambolics, L. Buda-Prejbeanu, J.C. Toussaint[1,2], and O. Fruchart
 Laboratoire Louis Néel, Grenoble
 Laboratoire SPINTEC, Grenoble
In this paper we propose a finite element model (FEM), to solve the micro-magnetic equations. Two bi-dimensional test problems are treated to estimate the validity and the accuracy of this approach.
P. Pham, I. Texier, and F. Perraut
CEA-LETI, Direction de la Recherche Technologique, Grenoble
This paper summarizes the numerical contribution to a project for the detection of bioparticles present in a small volume of a liquid sample. Dielectrophoresis (DEP) is used to enhance their transport toward the surface of a detector. The mathematical model is composed of the electrokinetics equation for the DEP force-field calculation, and the advection-diffusion equation for the particle ...
A. Kondoyan, P-H. Bussière, and F. Verrier
INRA Clermont-Fd/Theix – Qualité des Produits Animaux – Equipe Couplage Transferts-Transformations
In this paper, we create models with the use of COMSOL Multiphysics to predict evolution of temperatures and crust formation in meat during barbecuing and oven roasting. Sensitivity to parameters is analysed and predictions are compared to experimental data from literature.
G. Louarn, S. Taleb, and S. Cuenot
Institut des Matériaux Jean Rouxel, Nantes
The knowledge of the light propagation through a nanometer-size aperture is crucial for Scanning Optical Near Field Microscopy (SNOM). In this work, we address a numerical study of the transmitted electric field through a SNOM probe. The influence of the wavelength is also studied. Our results show that the logarithmic power decreases linearly as a function of the aperture size, and the ...
A. Michau, F. Silva, K. Hassouni, and A. Gicquel
Laboratoire d’Ingénierie des Matériaux et des Hautes Pressions, Villetaneuse
A reduced equivalent plasma model is proposed for thermal dissociation of molecular hydrogen, which allows a detailed description of atomic hydrogen recombination. This model, implemented with COMSOL Multiphysics, also accounts for surface temperature and thermal exchange on cavity walls. A self-consistent model previously developed in our laboratory has enabled us to determine that, at ...
INOPRO, Villard de Lans
In this paper, we describe the methodology of modeling Metal Organic Chemical Vapor Deposition. As a special case study we investigate the Ag deposit.
B. Longuet[1,2], J.M. Pascaud, and P. Gillard
 Laboratoire Energétique Explosions et Structures, Université d’Orléans
 DGA/ETBS, Bouges
In this paper, we model the thermal decomposition of an energetic materiel inside a vessel located in the furnace of a thermal gravimetric apparatus. As a case study, we treat the case with ammonium perchlorate single particles.
S. Pietrzyk, F. Dhainaut, A. Khodakov, and P. Granger
Université de Lille
In this paper, we present the modeling of catalytic reactions under non-steadystate conditions. Particularly, we study the Fisher-Tropsch reaction in a pulse reactor.
Using COMSOL for Studying the Occurrence of a Constant-shaped Concentration Front in the Retention of Gaseous Pollutants by Adsorption Columns
A. Joly, V. Volpert, and A. Perrard
 Université de Lyon
 Institut de Recherches sur la Catalyse, Lyon
Various models, based on mass transfer and different isothermal adsorption equilibrium laws, are developed using COMSOL Multiphysics. These isotherms are representative of the adsorption of various pollutant-adsorbent systems frequently found in decontamination processes. Consequences on breakthrough curves are examined and possible applications to decontamination processes are discussed.