搜索结果: 1-15 共查到“理论统计学 energy”相关记录16条 . 查询时间(0.329 秒)
Rich example of geometrically induced nonlinearity: From rotobreathers and kinks to moving localized modes and resonant energy transfer
Mechanical systems linear geometric properties nonlinear dynamic equations nonlinear wave resonance energy transfer
2014/12/29
We present an experimentally realizable, simple mechanical system with linear interactions whose geometric nature leads to nontrivial, nonlinear dynamical equations. The equations of motion are derive...
Standard nearest-neighbour discretizations of Klein–Gordon models cannot preserve both energy and linear momentum
Discrete nonlinear klein GeDengBo equation the standard discrete linear momentum
2014/12/25
We consider nonlinear Klein–Gordon wave equations and illustrate that standard discretizations thereof (involving nearest neighbours) may preserve either standardly defined linear momentum or standard...
Emergence of unstable modes in an expanding domain for energy-conserving wave equations
Simulated energy wave equation the nonlinear schrodinger equation the coupling
2014/12/25
Motivated by recent work on instabilities in expanding domains in reaction–diffusion settings, we propose an analog of such mechanisms in energy-conserving wave equations. In particular, we consider a...
Radiationless energy exchange in three-soliton collisions
Weak disturbance going - Gordon equation transmission model inelastic
2014/12/24
We revisit the problem of the three-soliton collisions in the weakly perturbed sine-Gordon equation and develop an effective three-particle model allowing us to explain many interesting features obser...
Intrinsic energy localization through discrete gap breathers in one-dimensional diatomic granular crystals
Discrete space breathing apparatus a one-dimensional compression elastic bead chain Hertz diatomic chain heavy particles
2014/12/24
We present a systematic study of the existence and stability of discrete breathers that are spatially localized in the bulk of a one-dimensional chain of compressed elastic beads that interact via Her...
Homogeneity tests for Michaelis-Menten curves with application to fluorescence resonance energy transfer data
Homogeneity Michaelis-Menten curves fluorescence resonance energy transfer data
2011/6/21
Background
Resonance energy transfer (RET) methods are in wide use for evaluating protein-protein
interactions and protein conformational changes in living cells. Sensitized emission
fluorescence r...
Linearization effect in multifractal analysis: Insights from Random Energy Model analysis
Statistical Mechanics (cond-mat.stat-mech) Probability (math.PR) Statistics Theory (math.ST)
2010/12/17
The analysis of the linearization effect in multifractal analysis, and hence of the estimation of moments for multifractal processes, is revisited borrowing concepts from the statistical physics of di...
Risk Quantification Associated with Wind Energy Intermittency in California
California renewable energy risk analysis systems engineering wind power generation
2010/3/10
As compared to load demand, frequent wind energy
intermittencies produce large short-term (sub 1-hr to 3-hr)
deficits (and surpluses) in the energy supply. These intermittent
deficits pose systemic...
Effect of Wind Intermittency on the Electric Grid：Mitigating the Risk of Energy Deficits
California renewable energy risk analysis systems engineering wind power generation
2010/3/10
Successful implementation of California’s
Renewable Portfolio Standard (RPS) mandating 33 percent
renewable energy generation by 2020 requires inclusion of a
robust strategy to mitigate increased r...
Free energy methods for efficient exploration of mixture posterior densities
Adaptive Biasing Force Adaptive Biasing Potential Adaptive Markov chainMonte Carlo Importance sampling Mixture models
2010/3/11
Because of their multimodality, mixture posterior densities are difficult to sample with
standard Markov chain Monte Carlo (MCMC) methods. We propose a strategy to enhance
the sampling of MCMC in th...
Bayesian inferences in high energy physics often use uniform prior distributions for parameters
about which little or no information is available before data are collected. The resulting posterior
d...
On Weight Matrix and Free Energy Models for Sequence Motif Detection
asymptotic efficiency discriminant analysis protein-DNA interaction predictive error transcription factor binding site
2010/3/9
The problem of motif detection can be formulated as the construction
of a discriminant function to separate sequences of a specific
pattern from background. In computational biology, motif detection...
Deconvolution in High-Energy Astrophysics: Science, Instrumentation, and Methods
Background Contamination Censoring Chandra X-ray Observatory EM-type Algorithms Frequency Evaluations Markov chain Monte Carlo Measurement Errors
2009/9/21
In recent years, there has been an avalanche of new data in observa-
tional high-energy astrophysics. Recently launched or soon-to-be launched space-
based telescopes that are designed to detect and...
Some two-dimensional finite energy percolation processes
energy percolation processes two-dimensional
2009/4/22
Some examples of translation invariant site percolation processes on the $Z^2$ lattice are constructed, the most far-reaching example being one that satisfies uniform finite energy (meaning that the p...