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An Experimental-Study of the Harmonics Generated During Alfven-Wave Heating at Tca

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Emergence of one-dimensional physics from the distorted Shastry-Sutherland lattice

Frédéric Mila

Motivated by the ongoing investigation of SrCu2(BO3)(2) under pressure, we study a variant of the two-dimensional Shastry-Sutherland (SS) spin-1/2 model with two types of dimers. Combined with the frustration of the SS model, this modification induces, in ...

2011

Evidence of time-dependent CP violation in the decay B^{0}→D^{+}D^{-}

Olivier Schneider, Aurelio Bay, Chao Wang, Tagir Aushev, Vladislav Balagura, Jean Wicht, Remi Léandre Albert Louvot, Nicolas Zwahlen, Jing Li

We report a measurement of the CP-odd fraction and the time-dependent CP violation in B-0 -> D*+D*- decays, using 657x10(6) BB events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure ...

2009

Fluctuations and transport in the TCV scrape-off layer

Richard Pitts, Jan Horacek

Fluctuations and particle transport in the scrape-off layer of TCV plasmas have been investigated by probe measurements and direct comparison with two-dimensional interchange turbulence simulations at the outer midplane. The experiments demonstrate that wi ...

2007

A novel isomer of C70(CF3)6 has been isolated by HPLC from a mixture prepared by trifluoromethylation of C70 with CF3COOAg. The X-ray structure revealed an unprecedented arrangement of CF3 groups forming a p3mp ribbon. This result provides additional evide ...

2006

, , ,

TaSe3 belongs to a class of low-dimensional materials characterized by the interplay and competition between dimensionality crossover and broken symmetry ground states. A comprehensive study by dc-transport, optical, and angle-resolved photoemission (ARPES ...

Springer Verlag2004

Modelling of Alfven waves in JET plasmas with the CASTOR-K code

Ambrogio Fasoli, Duccio Testa

A hybrid magnetohydrodynamic (M H D)-gyro-kinetic model CASTOR-K developed for the study of Alfven eigenmode (AE) stability in the presence of energetic ions has been applied to the interpretation of recent measurements of Alfven waves in JET. These includ ...

2002

Vasomotion has been studied on segments of rat mesenteric and femoral arteries perfused in vitro. We have investigated 1) the effect of perfusion flow on the characteristics of vasomotion and 2) the nature and patterns of vasomotion. We have found that per ...

American Physiological Society1998

Kinetic Alfvén eigenmodes in a hot tokamak plasma

Ambrogio Fasoli, Laurent Villard, Jonathan Bryan Lister, Kurt Appert

Global Alfven eigenmodes are studied using fluid and kinetic plasma models to determine how the finite Larmor excursions of the bulk species and the resonant Landau interactions modify the spectrum in the toroidicity Alfven eigenmode (TAE) range of frequen ...

IAEA1997

Alfven frequency modes and global Alfven eigenmodes

Laurent Villard

The spectrum of n = 0 Alfven modes is calculated analytically and numerically in cylindrical and toroidal geometries. It includes global Alfven eigenmodes (GAEs) and surface modes (SMs) of the fast magnetoacoustic wave. These modes are not induced by toroi ...

1997

Alfven wave heating and stability

Laurent Villard, Stephan Brunner

Alfven waves in fusion plasmas play an important role in a number of situations. First, in Alfven Wave Heating (AWH) schemes. Second, both theory and experiment have demonstrated the existence of Global Alfven Eigenmodes (GAEs). GAEs have been observed in ...

1995