Monte Carlo simulations have been carried out to investigate microscopic surface structures during chemical reduction of a transition metal oxide, AO (A=Ni, Co, Fe, Mn), in which oxygen is immobile and cations are mobile via cation vacancies. The reduction is controlled by diffusion of cation...

The international OECD/NRC BWR Full-size Fine-Mesh Bundle Tests (BFBT) benchmark, based on the NUPEC database, encourages advancement in sub-channel analysis of two-phase flow in rod bundles, which has great relevance with regard to the nuclear reactor safety margin evaluation. This benchmark...

Leaf-cutter ants in the genus Atta are frequent model organisms in studies of central-place foraging. Workers carry leaf fragments from the foraging site to the nest. Larger workers carry heavier loads, but it has been noted repeatedly that workers typically carry fragments lower in mass than...