Results 271 to 280 of about 220,518 (289)

Bifurcations in a vocal fold model

Nonlinear Dynamics, 1995
An autonomous fourth order model of vocal fold vibrations is proposed. Each fold is represented by a lower and upper mass, and the aerodynamic forces are derived from a modified Bernoulli equation. The model exhibits many features of normal phonation in a wide parameter region.
Hanspeter Herzel, Carsten Knudsen
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ELIMINATING SUPERFLUOUS NEIGHBOR PAIRS WHILE THREADING FOLD MODELS

Biocomputing 2000, 1999
In this paper we address the problem of identifying which of various possible spatial residue-residue neighbor pairs are plausible physical contacts without reference to the native structure side chain geometry. We propose an algorithm that eliminates most of the implausible physical contacts from the fold models.
J R, Bieńkowska, R G, Rogers, T F, Smith   +2 more
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Artificial Immune System for Protein Folding Model

Journal of Convergence Information Technology, 2011
To improve protein folding simulations, artificial immune system (AIS) was investigated on a 2D lattice model. AIS is a novel intelligent problem solving technique inspired from vertebrate immune system. Compared with stand genetic algorithm (SGA), AIS contains four new operators such as cloning selection, inverse mutation, pairwise interchange ...
Yudong Zhang -, Shuihua Wang -, Lenan Wu -, Yuankai Huo -   +3 more
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Protein folding model focuses on 'designability'

Chemical & Engineering News Archive, 1996
In a technical tour de force, researchers have computed for the first time the thermodynamic energies of all possible structures for model proteins having 27 amino acids. Based on those results, they propose that the "designability" hypothesis of protein folding explains why only a very small subset of possible protein configurations is found in nature.
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Folding model with three-body force

Journal of Physics G: Nuclear and Particle Physics, 1994
A folding model for the nucleon-nucleus interaction potential involving a three-body force is presented. Well known models for the nuclear two-body density have been used to derive, under the zero-range approximation, an expression for the two-body effective interaction which includes the three-body force contribution as an additional density ...
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Bacterial Chemotaxis Optimization for Protein Folding Model

2009 Fifth International Conference on Natural Computation, 2009
To improve protein folding simulations, bacterial chemotaxis optimization (BCO) was investigated on a 2D lattice model. BCO is a novel intelligent problem solving technique inspired from the foraging behavior of bacteria. We compared BCO with standard genetic algorithm (SGA), Immune Genetic Algorithm (IGA), and Artificial Immune System (AIS) for ...
Zhang Yudong, Wu Lenan
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Double folding model analysis of 7Li scattering

Nuclear Physics A, 1980
Abstract Elastic scattering angular distributions have been measured for the scattering of 7 Li by 44 Ca, 56 Fe and 58, 60 Ni at E( 7 Li ) = 34 MeV . These data are well described by the optical model using volume Woods-Saxon potentials.
C.W. Glover, R.I. Cutler, K.W. Kemper
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Folding model description of fusion reaction

Journal of Physics G: Nuclear and Particle Physics, 1996
The shape, separation and orientation dependence of the interaction potential and fusion cross section of the system are investigated within the double-folding model of deformed nuclei. The effective nucleon - nucleon interaction is taken to be the M3Y, which has been derived from G-matrix elements and based upon the Reid soft-core potential.
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Phonation onset: Vocal fold modeling and high-speed glottography

The Journal of the Acoustical Society of America, 1998
Phonation onset is discussed in the framework of dynamical systems as a Hopf bifurcation, i.e., as a transition from damped to sustained vocal fold oscillations due to changes of parameters defining the underlying laryngeal configuration (e.g., adduction, subglottal pressure, muscular activity).
P, Mergell, H, Herzel, T, Wittenberg, M, Tigges, U, Eysholdt   +4 more
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The maltoporin of Salmonella typhimurium: sequence and folding model

Research in Microbiology, 1990
The sequence of the lamB gene from Salmonella typhimurium was determined. It encodes the precursor to the LamB protein from S. typhimurium (pre-LamBS.t.; 452 residues) which presents extensive homologies with the pre-LamB protein from Escherichia coli (pre-LamBE.c.; 446 residues). The first third of pre-LamBS.t.
E, Francoz, A, Molla, E, Dassa, W, Saurin, M, Hofnung   +4 more
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