The evolution of smoldering fires in biomass stored lab-scale silos with additional fuel material supplied repeatedly, has been studied. direct effects the added on sample are: cooling, enhanced thermal insulation, and facilitation more intense combustion at a later stage. This article focuses which leads to an almost instantaneous reduction rate. Surprisingly, this does not vary only amount re...

Superparamagnetic particles offer a new way to probe the kinetics of adhesive processes. Two different scenarios of physical adhesion are studied. The thermal activation of van der Waals adhesion is well described by an Arrhenius model. In contrast, it is necessary to go beyond the Arrhenius description to understand the thermal activation of bridging between colloidal particles by a polymer at...

We report first principle numerical study of domain wall (DW) depinning in two-dimensional magnetic film, which is modeled by 2D random-field Ising system with the dipole-dipole interaction. We observe nonconventional activation-type motion of DW and reveal the fractal structure of DW near the depinning transition. We determine scaling functions describing critical dynamics near the transition ...

Kinetic Monte Carlo on coarse-grained systems, such as nucleic acid secondary structure, is advantageous for being able to access behavior at long time scales, even minutes or hours. Transition rates between coarse-grained states depend upon intermediate barriers, which are not directly simulated. We propose an Arrhenius rate model and an intermediate energy model that incorporates the effects ...

A general inversion procedure for determining the optimum rate coe cients for chemical kinetic schemes, based upon limited net species production data, using Genetic Algorithm techniques is presented. The objective of the optimisation process is to derive rate parameters such that the given net species production rates at various conditions are simultaneously achieved by searching the parameter...