Concept

Conservation de la masse

Publications associées (225)

Adaptation of Aerobically Growing Pseudomonas aeruginosa to Copper Starvation

Restricted bioavailability of copper in certain environments can interfere with cellular respiration because copper is an essential cofactor of most terminal oxidases. The global response of the metabolically versatilebacterium and opportunistic pathogen P ...

2008

Production of new charmoniumlike states in e+e-→J/ψD() D̄() at s 10.6GeV

Olivier Schneider, Chao Wang, Tagir Aushev, Vladislav Balagura, Xiao Wang

We report a study of the processes e+e-→J/ψD()D̄(). In J/ψDD̄ we observe a significant enhancement in the DD̄ invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156-20+25±15)Me ...

2008

New conservative gyrokinetic full-f Vlasov code and its comparison to gyrokinetic delta f particle-in-cell code

Laurent Villard

A new conservative gyrokinetic full-f Vlasov code is developed using a finite difference operator which conserves both the L1 and L2 norms. The growth of numerical oscillations is suppressed by conserving the L2 norm, and the code is numerically stable and ...

2007

Numerical simulation of fluid added mass effect on a francis turbine runner

François Avellan, Mohamed Farhat, Eduard Egusquiza

In this paper, a numerical simulation to analyze the influence of the surrounding water in a turbine runner has been carried out using finite element method (FEM). First, the sensitivity of the FEM model on the element shape and mesh density has been analy ...

2007

Straight silicon tube for density and mass flow sensing (fabrication, modeling and evaluation)

Mohammad Najmzadeh

The aim of this project work is to fabricate and evaluate a resonating silicon tube as a density and a Coriolis-based mass flow sensor. This project consists of three course works: a project work, a microelectronics project, and a master thesis. At first, ...

2007

Microscopic theory for the Markovian decay of magnetization fluctuations in nanomagnets

Ioannis Rousochatzakis

We present a microscopic theory for the phonon-driven decay of the magnetization fluctuations in a wide class of nanomagnets where the dominant energy is set by isotropic exchange and/or uniaxial anisotropy. Based on the Zwanzig-Mori projection formalism, ...

2007

Measurement of the τ lepton mass and an upper limit on the mass difference between τ+ and τ-

Olivier Schneider, Aurelio Bay, Stewart Cole, Chao Wang, Tagir Aushev

The mass of the τ lepton has been measured in the decay mode τ→3πντ using a pseudomass technique. The result obtained from 414fb-1 of data collected with the Belle detector is Mτ=[1776.61±0. 13(stat)±0.35(sys)]MeV/c2. The upper limit on the relative mass d ...

2007

Stabilized Mixed Finite Element Formulations for Materially Nonlinear Partially Saturated Media

Standard and enhanced (BBAR or EAS) low order finite elements applied to the problem of consolidation of two-phase nonlinear continua do not satisfy the LBB condition when the same interpolation functions are used for both displacement and pore pressure fi ...

2006

Creating Virtual Prototypes of Complex MEMS Transducers Using Reduced-Order Modelling Methods and VHDL-AMS

Torsten Mähne

In this chapter the creation of "virtual prototypes" of complex micro-electro-mechanical transducers is presented. Creating these behavioural models can be partially automatised using a reduced-order modelling (ROM) method. It uses modal decomposition to r ...

Springer2006

A drift-kinetic Semi-Lagrangian 4D code for ion turbulence simulation

Olivier Sauter, Laurent Villard

A new code is presented here, named Gyrokinetic SEmi-LAgragian (GYSELA) code, which solves 4D drift-kinetic equations for ion temperature gradient driven turbulence in a cylinder (r, theta, z). The code validation is performed with the slab ITG mode that o ...

Elsevier2006

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