搜索结果: 256-270 共查到“计算物理学”相关记录538条 . 查询时间(2.224 秒)
Critical behavior of the Random-Field Ising Magnet with long range correlated disorder
random- eld Ising model, correlated disorder, corrections to scaling
2011/9/29
We study the correlated-disorder driven zero-temperature phase transition of the Random-Field Ising Magnet using exact numerical ground-state calculations for cubic lattices. We consider correlations ...
y Dispersion Analysis for the Hayabusa Spacecraft using Ground Based Optical Observation
astrometry — celestial mechanics — Hayabusa — orbit determination — space vehicles
2011/9/8
Hayabusa asteroid explorer successfully released the sample capsule to Australia on June 13, 2010. Since the Earth reentry phase of sample return was critical, many backup plans for predicting the lan...
Highly Nonlinear Ising Model and Social Segregation
Ising Model, Modified Ising model, statistical physics, urban segregation
2011/9/7
The usual interaction energy of the random field Ising model in statistical physics is modified by complementing the random field by added to the energy of the usual Ising model a nonlinear term S n ....
Superconductivity in the recently proposed ground-state structures of atomic metallic hydrogen is investigated over the pressure range 500 GPa to 3:5 TPa. Near molecular dissociation, the electron{pho...
OpenPh - Numerical Physics Library
numerical physics, MATLAB, quantum physics, classical mechanics, module, photoelectric effect, Schr鰀inger equation, vibration of a string
2011/9/15
Numerical physics has gained a lot of importance in the last decade, its efficiency being motivated and sustained by the growth of computational power. This paper presents a concept that is to be deve...
A new family of solvable Pearson-Dirichlet random walks
Pearson-Rayleigh random walks random flights Dirichlet distribution gamma distribution Gauss hypergeometric function Bessel numbers Inverse Laplace transform
2011/9/6
A n-step Pearson-Gamma random walk in dstarts at the origin and consists of n independent steps with gamma distributed lengths and uniform orientations. The gamma distribution of each step length has ...
Proportionate vs disproportionate distribution of wealth of two individuals in a tempered Paretian ensemble
Pareto law, Paretian ensemble, Truncated wealth distribution,Fluctuations
2011/9/15
We study the distribution P(!) of the random variable ! = x1/(x1 + x2),where x1 and x2 are the wealths of two individuals selected at random from the same tempered Paretian ensemble characterized by t...
Competition between hydrogen bonding and electric field in single-file transport of water in carbon nanotubes
hydrogen bonding and electric field single-file transport carbon nanotubes
2011/9/15
Recent studies have shown the possibility of water transport across carbon nanotubes, even in the case of nanotubes with small diameter (0.822 nm). In this case, water shows subcontinuum transport fol...
In this letter, we study some evolution networks that grow with linear preferential attachment. Based upon some recent results on the quotient Gamma function, we give a rigorous proof of the asymptoti...
Analytic approach for calculating transmitted electromagnetic fields through a slot array in deep sub-wavelength regime
calculating transmitted electromagnetic fields deep sub-wavelength regime
2011/9/5
For the di raction of an incident plane electromagnetic wave by a slotted metallic lm, the previous analytical calculation for a single slot [Technical Phys. 50, 1076 (2005)] is generalized into a mo...
We present a general algorithm for finding the overlap area between two ellipses. The algorithm is based on finding a segment area (the area between an ellipse and a secant line) given two points on t...
Strategies for Development of a Distributed Framework for Computational Sciences
Grid, distributed computing, computational science, simulation,workflow, interoperability.
2011/9/14
This paper discusses some generic approach for developing gridbased framework for enabling establishment of workflows comprising existing software in computational sciences areas. We highlight the mai...
Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison
Proper orthogonal decomposition, reduced-order modeling, turbulence,large eddy simulation, eddy viscosity, variational multiscale, dynamic subgrid-scale model
2011/9/2
This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent ows: the dynamic subgrid-scale model and the variational...
Impact of Heterogeneous Human Activities on Epidemic Spreading
Epidemic Spreading, Human Dynamics, Inter-Event Time Distribution, Susceptible-Infected Model, Heterogeneity
2011/9/2
Recent empirical observations suggest a heterogeneous nature of human activities.The heavy-tailed inter-event time distribution at population level is well accepted,while whether the individual acts i...
Silicon dry oxidation kinetics at low temperature in the nanometric range: modeling and experiment
Silicon dry oxidation kinetics low temperature modeling experiment
2011/9/14
Kinetics of silicon dry oxidation are investigated theoretically and experimentally at low temperature in the nanometer range where the limits of the Deal and Grove model becomes critical.Based on a f...