Modeling Dispersal of Genetic Information in Structured Agricultural Landscapes with Partial Differential Equations
K. Lipsius, and O. Richter
Institute of Geoecology, TU Braunschweig, Germany
We present a model for plant dispersal in agricultural landscapes to evaluate the gene dispersal from genetically modified (GM) plants. Dispersal from seed and pollen is modeled with partial differential equations. In scenarios, we investigated the effect of roadside application of non-selective herbicides on dispersal of herbicide tolerant oilseed rape (HT OSR). We showed that OSR growing on ...
R. López, J. Morales*, M. Vaca, A. Lizardi, H. Terres, G. Bautista, A. Lara
Universidad Autonoma Metropolitana, Tlalpan, Distrito Federal, Mexico
Several undergraduate programs include the “Heat transfer” subject and, in our experience, it is hard for the students to grasp the concepts that are presented in the course. With this in mind, we designed and constructed an apparatus for the experimentation of heat transfer in a short bar. It was observed, that the time required to perform the experiment was so long, that the didactic aim ...
A. Buchau, and W. Rucker
Institut für Theorie der Elektrotechnik, Universität Stuttgart, Germany
Augmented reality is predestined for visualization of electromagnetic fields in air or inside transparent matter. Real existing objects are studied and invisible electromagnetic fields are added as virtual objects. Hence, experts as well as students are able to connect electromagnetic fields easily with studied objects. They can concentrate on physical effects instead on reading figures. Here, an ...
T. Slawig, and U. Prüfert
Christian-Albrechts-Universität Kiel, Kiel, Germany
TU Bergakademie Freiberg, Freiberg, Germany
Use of COMSOL Multiphysics equation-based model capability to solve optimization and control problems. Solution of time-dependent problems with space-time finite elements. Solution of constraint optimization problems. Mathematical back-up for equation-based optimization.
A. Egedy, T. Varga, and T. Chován
University of Pannonia
Department of Process Engineering
With detailed hydrodynamic modelling of a system the critical parameters and operation limits can be determined. In the field of fluid dynamic and reactor engineering one of the most important aspects is the practical knowledge of future engineers and technicians. In our research several different reactor constructions and impeller configurations were modelled to achieve a better ...
J. van Schijndel, S. Uittenbosch, and T. Thomassen
Eindhoven University of Technology
The paper presents the development of a method that determines building material and surface properties using relative simple and low-budget experiments, The method comprehends an optimal design of an experimental set up for smart determination of heat and moisture properties using both normal and inverse modeling techniques. It is concluded that the suggested methodology of the inverse ...
van Schijndel, A.W.M.J.
Technische Universiteit Eindhoven, Netherlands
FEMLAB has standard facilities to export models to Simulink. Normally, the standard export works well if the solvers, available in Simulink, can handle the problem. However, if a model in FEMLAB needs special solvers, for example airflow or other non-linear problems, the standard export to Simulink is often not suitable, because the standard solvers of Simulink cannot handle such a problem ...
K. Stein, R. Peterson, J. Houlton, J. Knapp, B. Peplinski, C. Scheevel, and D. Swenson
Department of Physics, Bethel University, St. Paul, MN, USA
Acoustic vibrations are studied for several objects through the application of computational and optical diagnostic techniques. Computational studies are carried out using the eigenfrequency analysis option in the COMSOL structural mechanics application mode, whereas experimental optical studies utilize real-time stroboscopic holography. The two approaches provide complementary descriptions ...
Butler, P.J.1, Ferko, M.C.2
1 Department of Bioengineering, Penn State University
2 Stryker Orthopedics Corporation
As biologists uncover the structural and functional complexity of living organisms, it is increasingly clear that mathematical models are needed to synthesize experimental data and predict biological responses to external stimuli. Bioengineers are well-suited to develop such models and to add mechanics, fluid flow and other physical cues to the understanding of biological structure and ...
C. Morgan, N. Kenkare, M. Williams, A. Peterson, and D. Williams
Alcon Eye Care Division of Novartis R&D, Duluth, GA
Alcon Eye Care Division of Novartis R&D and Georgia Institute of Technology Co-op Program, GA
Introduction of silicone hydrogel contact lens materials provided products of unprecedented capability to deliver oxygen to the eye during wear. One additional material characteristic of interest is the material’s permeability to ions. This paper discusses descriptive tools and optimization of an impedance method of characterizing ion permeability. A physical model of conductive paper with ...