نتایج جستجو برای: instantaneous and equilibrium

تعداد نتایج: 16842792  

2008
Hamidou Tembine Eitan Altman Rachid El Azouzi Yezekael Hayel

This paper studies non-cooperative population games with several individual states and independent Markov process. Each member of each class of the population has (i) its own state (ii) its actions in each state, (iii) an instantaneous reward which depends on its state and the population’s profile, (iv) a time-average (coupled) constraints. We apply this model to battery-dependent power control...

2008
Carol G. Hoover

We analyze temperature and thermometry for simple nonequilibrium heat-conducting models. We also show in detail, for both twoand three-dimensional systems, that the ideal-gas thermometer corresponds to the concept of a local instantaneous mechanical kinetic temperature. For the 4 models investigated here the mechanical temperature closely approximates the local thermodynamic equilibrium tempera...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
W G Hoover C G Hoover D J Isbister

The authors thermostat a qp harmonic oscillator using the two additional control variables zeta and xi to simulate Gibbs' canonical distribution. In contrast to the motion of purely Hamiltonian systems, the thermostated oscillator motion is completely ergodic, covering the full four-dimensional [q,p,zeta,xi] phase space. The local Lyapunov spectrum (instantaneous growth rates of a comoving coro...

2002
C. V. Hollot Y. Chait

Recent work has shown the benefit of using proportional feedback in TCP/AQM networks. By proportional feedback we mean the marking probability is proportional to the instantaneous queue length. Our earlier work relied on linearization of nonlinear fluidflow models of TCP. In this work we address these nonlinearities directly and establish some stability results when the marking is proportional....

2012
Sanjeeva Balasuriya Gary Froyland Naratip Santitissadeekorn

Given a flow on a surface, we consider the problem of connecting two distinct trajectories by a curve of extremal (absolute) instantaneous flux. We develop a complete classification of flux optimal curves, accounting for the possibility of the flux having spatially and temporally varying weight. This weight enables modelling the flux of non-equilibrium distributions of tracer particles, polluti...

Journal: :Physical review letters 2000
La Nave E Scala Starr Sciortino Stanley

We use the instantaneous normal mode approach to provide a description of the local curvature of the potential energy surface of a model for water. We focus on the region of the phase diagram in which the dynamics may be described by mode-coupling theory. We find that the diffusion constant depends on the fraction of directions in configuration space connecting different local minima, supportin...

With regard to the importance of instantaneous peak discharge estimation for watershed management study, and due to the lack of and unqualified climatic and hydrologic data for estimation and measurement in countries such as Iran, researchers were obliged to establish a link between constant parameters (geomorphologic) and variables (hydrologic) to present models with minimum dependence on clim...

2013
Nawreen Rahman Jochen Buck Lonny R. Levin

Soluble adenylyl cyclase (sAC) is a source of the second messenger cyclic adenosine 3', 5' monophosphate (cAMP). sAC is directly regulated by bicarbonate (HCO(-) 3) ions. In living cells, HCO(-) 3 ions are in nearly instantaneous equilibrium with carbon dioxide (CO2) and pH due to the ubiquitous presence of carbonic anhydrases. Numerous biological processes are regulated by CO2, HCO(-) 3, and/o...

Journal: :Physical review letters 2012
Bartłomiej Waclaw Martin R Evans

We study a far-from-equilibrium system of interacting particles, hopping between sites of a 1D lattice with a rate which increases with the number of particles at interacting sites. We find that clusters of particles, which initially spontaneously form in the system, begin to move at increasing speed as they gain particles. Ultimately, they produce a moving condensate which comprises a finite f...

2003
Michele Crosetto Bruno Crippa

This paper presents a DEM generation procedure based on optical (SPOT stereo) and radar (InSAR, interferometric SAR) data. The first part of the paper is focused on InSAR. The second one is concerned with the integration of optical and radar data. Two levels of integration are proposed: the SPOT data can support the InSAR procedure (in particular phase unwrapping) and the SPOT and InSAR data ca...

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