While anomalous diffusion coefficients with non-Arrhenius-like temperature dependence are observed in a number of metals, conclusive comprehensive framework explanation has not been brought forward to date. Here, we use first-principles calculations based on density functional theory calculate self-diffusion the bcc metals Mo and $\ensuremath{\beta}$-Ti by coupling quasiharmonic transition stat...

We test the applicability of a living polymerization theory to describe cooperative string-like particle rearrangement clusters (strings) observed in simulations of a coarse-grained polymer melt. The theory quantitatively describes the interrelation between the average string length L, configurational entropy Sconf, and the order parameter for string assembly Φ without free parameters. Combinin...

Al~tract--l. The thermal responses of liver mitochondrial membranes of heterothermic bats (M. schreibersii) during summer and winter were compared with those of normothermic laboratory mice (Mus rausculus ). 2. Bat mitochondrial membranes showed a constant Arrhenius Ea for succinate oxidase and succinate:cytochrome c reductase and no change in the temperature coefficient of the order parameter ...

This article presents the analysis of peristaltic transport of reactive viscous fluid in a two-dimensional channel. We assumed that the exothermic reaction takes place within the channel under Arrhenius kinetics. The viscosity of fluid is taken temperature dependent. The nonlinear equations governing the flow are derived under the long wavelength and low Reynolds number approximations. The powe...

A non-Arrhenius model based on the Mittag-Leffler function has been conceived as a basic concept. This approach allows modelling both sub-Arrhenius and super-Arrhenius behaviours giving rise to modified temperature integrals.

This paper contains qualitative and quantitative comparisons between a weakly nonlinear analysis and direct numerical simulations of a free-boundary problem. The former involves modulating the most linearly unstable mode, taking a small perturbation of the neutrally stable value νc of a parameter ν related to the activation energy. Analogously, we perform the direct numerical computations near ...

Berthelot's equation, k,(T) = A,exp{-Dlc,T}, provides a good description of the high-pressure rate coefficient for associative reactions such as CH3 + CH3, CH3 + OH, and CH3+ H. The parameter D may be used to characterize an effective temperature-dependent barrier, AE,ff = DkiT2, which is due to the internal energy, i.e. rotational and vibrational energy, or the centrifugal barrier of the assoc...

Reliable analysis of any experimental data is always difficult due to the presence of noise and other types of errors. This paper analyzes data obtained from photoluminescence measurement, after annealing of interdiffused Quantum Well hetrostructures, using an Adaptive Real coded Quantum inspired Evolutionary Algorithm (ARQiEA). The proposed algorithm directly computes interdiffusion parameters...

An approach for computing the correlations of species richness values obtained from nested and non-nested sampling schemes is described. The correlations obtained are used to construct species accumulation curves for the Carolina Vegetation Survey data set using the log Arrhenius, Gleason, and Arrhenius models. These models are then used to predict the richness at the 400 m2 scale, a value outs...