Publications related to Collision

Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations

Turbulence and transport reduction with innovative plasma shapes in TCV -- correlation ECE measurement and gyrokinetic simulations Due to turbulence, core energy transport in tokamaks generally exceeds collisional transport by at least an order of magnitud ...

2010

Collisional damping of zonal flows due to finite Larmor radius effects

Paolo Ricci

The collisional damping of seeded E X B zonal flows on the ion Larmor radius scale is studied using a gyrokinetic model. The focus is on flow damping due to finite Larmor radius effects, which cause a nu(parallel to)/nu anisotropy of the ion distribution f ...

American Institute of Physics2010

Observation of Bs0 -> Ds()+ Ds()- using e+e- collisions and a determination of the Bs-Bsbar width difference Delta Gamma_s

Olivier Schneider, Aurelio Bay, Mingkui Wang, Chao Wang, Tagir Aushev, Vladislav Balagura, Jean Wicht, Remi Léandre Albert Louvot, Ji Hyun Kim

We have made the first observation of B-s(0) -> D-s(()()+) D-s(()()-) decays using 23.6 fb(-1) of data recorded by the Belle experiment running on the Y(5S) resonance. The branching fractions are measured to be B(B-s(0) -> Ds+Ds-) = (1.03(-0.32-0.25)(+0. ...

2010

Collision avoidance with obstacles in flocking for multi agent systems

Mehran Khaghani

Multi agent system is a system consist of multiple interacting agents. These systems tend to select the best solution for their problems. They can be used in different tasks which are hard for an individual or even a complex system to do. One of the most c ...

IEEE2010

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Olivier Sauter, Basil Duval, Stefano Coda, Timothy Goodman, Laurent Villard, Jean-Marc Moret, Stephan Brunner, Benoît Labit, Laurie Porte, Alexander Karpushov, Antoine Pochelon, Yann Camenen, Roland Behn, Alberto Bottino, Sébastien Jolliet, Emiliano Fable, Philippe Marmillod, Ben McMillan, Alessandro Marinoni, Lucia Isabel Federspiel, Andreas Pitzschke, Mikael Rancic

Turbulence and Transport Reduction with Negative Triangularity : Correlation ECE Measurements in TCV Due to turbulence, core energy transport in fusion devices such as tokamaks generally exceeds collisional transport by at least an order of magnitude. It i ...

2010

Neoclassical equilibria as starting point for global gyrokinetic microturbulence simulations

Jonathan Graves, Laurent Villard, Stephan Brunner, Trach-Minh Tran, Alberto Bottino, Sébastien Jolliet, Ben McMillan, Thibaut Vernay

The implementation of linearized operators describing inter- and like-species collisions in the global gyrokinetic particle-in-cell code ORB5 [ S. Jolliet, Comput. Phys. Commun. 177, 409 (2007) ] is presented. A neoclassical axisymmetric equilibrium with s ...

American Institute of Physics2010

Scheduling periodic tasks in a hard real-time environment

Friedrich Eisenbrand, Martin Niemeier, Nicolai Hähnle

We give a rigorous account on the complexity landscape of an important real-time scheduling problem that occurs in the design of software-based aircraft control. The goal is to distribute tasks

\tau_i=(c_i,p_i)

on a minimum number of identical machines a ...

Springer-Verlag2010

L-edge XANES analysis of photoexcited metal complexes in solution

Majed Chergui, Van Thai Pham, Amal El Nahhas, Renske Marjan van der Veen, Frederico Alves Lima

Ultrafast X-ray absorption spectroscopy is a powerful tool to observe electronic and geometric structures of short-lived reaction intermediates. The ab initio FEFF9 code is applied to simulate the Pt L-3-edge XANES spectrum of the photocatalytic diplatinum ...

Royal Society of Chemistry2010

Global gyrokinetic simulations of rho* and nu* scalings of turbulent transport

Laurent Villard, Trach-Minh Tran, Sébastien Jolliet, Ben McMillan

Turbulent transport dynamics and level are investigated with the 5D gyrokinetic global code GYSELA, modelling the Ion Temperature Gradient instability with adiabatic electrons. The heat transport exhibits large scale events, propagating radially in both di ...

IAEA2008

Beyond uniformity: Better security/efficiency tradeoffs for compression functions

Martijn Stam

Suppose we are given a perfect n + c-to-n bit compression function f and we want to construct a larger m + s-to-s bit compression function H instead. What level of security, in particular collision resistance, can we expect from H if it makes r calls to f? ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2008

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Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations

Collisional damping of zonal flows due to finite Larmor radius effects

Observation of Bs0 -> Ds()+ Ds()- using e+e- collisions and a determination of the Bs-Bsbar width difference Delta Gamma_s

Collision avoidance with obstacles in flocking for multi agent systems

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Neoclassical equilibria as starting point for global gyrokinetic microturbulence simulations

Scheduling periodic tasks in a hard real-time environment

L-edge XANES analysis of photoexcited metal complexes in solution

Global gyrokinetic simulations of rho* and nu* scalings of turbulent transport

Beyond uniformity: Better security/efficiency tradeoffs for compression functions

Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations

Collision avoidance with obstacles in flocking for multi agent systems

L-edge XANES analysis of photoexcited metal complexes in solution

Observation of Bs0 -> Ds()+ Ds()- using e+e- collisions and a determination of the Bs-Bsbar width difference Delta Gamma_s

Beyond uniformity: Better security/efficiency tradeoffs for compression functions

Collisional damping of zonal flows due to finite Larmor radius effects

Transport and turbulence reduction with negative triangularity : Correlation ECE measurements in TCV

Scheduling periodic tasks in a hard real-time environment

Global gyrokinetic simulations of rho* and nu* scalings of turbulent transport

Neoclassical equilibria as starting point for global gyrokinetic microturbulence simulations