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Influence of mass difference on dynamic properties of isotope mixtures

Kiriushcheva, N.; Kuzmin, S.V. - In: Physica A: Statistical Mechanics and its Applications 352 (2005) 2, pp. 509-521

properties that result from mass heterogeneity, by calculating the diffusion coefficient, velocity autocorrelation function, non … proposed universal scaling law for atomic diffusion in condensed matter (Nature 381 (1996) 137). …

Persistent link: https://www.econbiz.de/10011059117

Temperature effects on the diffusion of water and monovalent counterions in the hydrated montmorillonite

Zheng, Y.; Zaoui, A. - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 23, pp. 5994-6001

We investigate here the effect of temperature on the diffusion of water and cations in the Wyoming-type montmorillonite … interlayer ions and water molecules under a temperature range between 260 and 400 K. The diffusion coefficient of water and … cations in different hydrated clays increases with temperature. The influence of temperature on the diffusion of water is much …

Persistent link: https://www.econbiz.de/10010703206

Central limit theorem for the integrated squared error of the empirical second-order product density and goodness-of-fit tests for stationary point processes

Heinrich, Lothar; Klein, Stella - In: Statistics & Risk Modeling 28 (2011) 4, pp. 359-387

Abstract Spatial point processes are mathematical models for irregular or random point patterns in the d -dimensional space, where usually d = 2 or d = 3 in applications. The second-order product density and its isotropic analogue, the pair correlation function, are important tools for...

Persistent link: https://www.econbiz.de/10014622210

Influence of the Coulomb interaction on the Fermi hole in an electron liquid

Horiuchi, Masafumi; Endo, Takanori; Yasuhara, Hiroshi - In: Physica A: Statistical Mechanics and its Applications 255 (1998) 1, pp. 48-64

From the diagrammatic analysis, it is proved that the spin-parallel part of the static structure factor of an electron liquid, S↑↑(q), has the following exact asymptotic form for q⪢pf: S↑↑(q)−1=4(αrs/π)(pf/q)6d2g↑↑(r)/d(pfr)2|pfr=0+⋯, α=(4/9π)1/3, where pf is the Fermi wave...

Persistent link: https://www.econbiz.de/10011058799

Further notes concerning the partial pair correlation functions of liquid (ambient) water

Pusztai, László - In: Physica A: Statistical Mechanics and its Applications 314 (2002) 1, pp. 514-520

Methods for deriving partial pair correlation functions for liquid water are considered. It is argued that the one based on Reverse Monte Carlo modeling [Phys. Rev. B 60 (1999) 11851] is more suitable for the purpose than direct separation (of which the latter is based on the inversion of the...

Persistent link: https://www.econbiz.de/10011062656

On the realizability of pair correlation functions

Uche, O.U.; Stillinger, F.H.; Torquato, S. - In: Physica A: Statistical Mechanics and its Applications 360 (2006) 1, pp. 21-36

The pair correlation function g2(r) provides a basic geometric descriptor for many-particle systems. It must obey two necessary conditions: (i) non-negativity for all distances r, and (ii) non-negativity of its associated structure factor S(k) for all k. Here we utilize an improved stochastic...

Persistent link: https://www.econbiz.de/10011062940

Ring approximation at equilibrium: The hard sphere pair correlation function

Piasecki, Jarosław; Soto, Rodrigo - In: Physica A: Statistical Mechanics and its Applications 379 (2007) 2, pp. 409-416

The ring approximation has been used in the kinetic theory of hard sphere fluids to investigate non-equilibrium phenomena depending on dynamic correlations, not included in the Boltzmann or Enskog equations. We show that when applied to equilibrium the ring approximation reproduces correctly the...

Persistent link: https://www.econbiz.de/10011062949

Estimation variances for estimators of product densities and pair correlation functions of planar point processes

Stoyan, D.; Bertram, U.; Wendrock, H. - In: Annals of the Institute of Statistical Mathematics 45 (1993) 2, pp. 211-221

Persistent link: https://www.econbiz.de/10005184681

Cluster structure and dynamics in a mesoscopic solvent

Lee, Song Hi; Kapral, Raymond - In: Physica A: Statistical Mechanics and its Applications 298 (2001) 1, pp. 56-68

scales, the effects of hydrodynamic interactions on single and multi-particle diffusion are taken into account. …

Persistent link: https://www.econbiz.de/10010590775

Towards a sense of urgency for innovation realization: A case study on complacency asymmetries in interorganizational relations

Mitcheltree, Christina Marie - In: Journal of Innovation and Entrepreneurship 12 (2023) 1, pp. 1-37

This paper seeks to explore the concept of complacency as a barrier to the sense of urgency within product innovation, by investigating the concept on behalf of interfirm project partners. More specifically, the study aims to understand complacency within the context of an industrial research...

Persistent link: https://www.econbiz.de/10014519608