نتایج جستجو برای: rosenbluth separation

تعداد نتایج: 123340  

2005
Charles F. F. Karney

The Rosenbluth form for the collision operator for a weakly relativistic plasma is derived. The formalism adopted by Antonsen and Chu can then be used to calculate the efficiency of current drive by fast waves in a relativistic plasma. Accurate numerical results and analytic asymptotic limits for the efficiencies are given.

2004
J. Baschnagel J. P. Wittmer H. Meyer Charles Sadron

A coarse-grained simulation model eliminates microscopic degrees of freedom and represents a polymer by a simplified structure. A priori, two classes of coarse-grained models may be distinguished: those which are designed for a specific polymer and reflect the underlying atomistic details to some extent, and those which retain only the most basic features of a polymer chain (chain connectivity,...

Journal: :J. Comput. Physics 2010
Petr Hellinger Pavel M. Trávnícek

Langevin model corresponding to the Fokker-Planck equation for bi-Maxwellian particle distribution functions is developed. Rosenbluth potentials and their derivatives are derived in the form of triple hypergeometric functions. The Langevin model is tested in the case of relaxation of the proton temperature anisotropy and implemented into the hybrid expanding box model. First results of this cod...

Journal: :Physical review. C, Nuclear physics 1994
Cenni Saracco

and allows the experimental separation of the longitudinal and transverse electromagnetic response functions RL/T by means of a Rosenbluth plot of data taken at the same Q and different angles. Such separation is grounded on two approximations, namely the one–photon–exchange and the negligibility of Coulomb distortion of the electrons. In the inclusive cross section the two photons exchange cor...

1997
Helge Frauenkron Ugo Bastolla Erwin Gerstner Peter Grassberger Walter Nadler HLRZ co Forschungszentrum Julich Germany Physics Department University of Wuppertal Germany

We demonstrate that the recently introduced pruned-enriched Rosenbluth method (PERM) leads to extremely efficient algorithms for the folding of simple model proteins. We test them on several models for lattice heteropolymers, and compare to published Monte Carlo studies. In all cases our algorithms are faster than previous ones, and in several cases we find new minimal energy states. In additio...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2003
Hsiao-Ping Hsu Vishal Mehra Walter Nadler Peter Grassberger

An improved version of the pruned-enriched-Rosenbluth method (PERM) is proposed and tested on finding lowest energy states in simple models of lattice heteropolymers. It is found to outperform not only the previous version of PERM, but also all other fully blind general purpose stochastic algorithms which have been employed on this problem. In many cases, it found new lowest energy states misse...

2000
S. HARROCH P. SHRAGER M. BLUM J. D. BUXBAUM

S. HARROCH, M. PALMERI, J. ROSENBLUTH, A. CUSTER, M. OKIGAKI, P. SHRAGER, M. BLUM, J. D. BUXBAUM, AND J. SCHLESSINGER* Department of Pharmacology and the Skirball Institute and Department of Physiology and Neuroscience, New York University Medical Center, New York, New York 10016; Department of Neurobiology and Anatomy, University of Rochester Medical Center, Rochester, New York 14642; and Depa...

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