Land use and management practices (LUMPs) play a critical role in regulating soil loss. The cover-management factor (C-factor) Universal Soil Loss Equation (USLE)-type models is an important parameter for quantifying the effects of LUMPs on erosion. However, accurately determining C-factor, particularly large-scale assessments using USLE-type models, remains challenging. This study aims to addr...

Guiastrennec, B. 2018. Mechanism-based modeling of biological processes involved in oral absorption. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Pharmacy 246. 64 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0225-6. For orally administered drugs, the rate and extent of absorption are governed by the physiology of the gastrointestinal tract, the ch...

The espresso extraction process involves a complex transport inside geometry-changing porous medium. Large solid grains forming the majority of medium can migrate, swell, and consolidate, they also morphologically change during flow, i.e., being mechanically eroded by hydrodynamic forces. These processes can, in turn, have significant back-effect on flow related coffee profiles. In this article...

We consider a one-dimensional two-phase Stefan problem, modeling a layer of solid material oating on liquid. The model includes internal heat sources, variable total mass (resulting e.g. from sedimentation or erosion), and a pressure-dependent melting point. The problem is reduced to a set of nonlinear integral equations, which provides the basis for an existence and uniqueness proof and a new ...

Many important scientific and engineering problems are studied using Cellular Automata (CA) models. Mathematical formulae with component-based modeling concepts are used to specify CA models. Computer simulation tools support viewing the dynamics of CA simulation models. Existing approaches with their tools are restrictive from visual model development perspective since models must be specified...