62 citations · 98 across the 5 of their papers we have counts for
5 papers
New efficient methods to calculate watersheds
E. Fehr, J. S. Andrade, S. D. da Cunha +5
We present an advanced algorithm for the determination of watershed lines on Digital Elevation Models (DEMs), which is based on the iterative application of Invasion Percolation (I…
Parabolic dunes in north-eastern Brazil
O. Duran, M. V. N. Silva, L. J. C. Bezerra +2
In this work we present measurements of vegetation cover over parabolic dunes with different degree of activation along the north-eastern Brazilian coast. We are able to extend the…
Comparison of two different implementations of a finite-difference-method for first-order pde in mathematica and matlab
Heiko Herrmann, Gunnar Rueckner
In this article two implementations of a symmetric finite difference algorithm for a first-order partial differential equation are discussed. The considered partial differential eq…
Spin Axioms in Relativistic Continuum Physics
Heiko J. Herrmann, G. Rueckner, W. Muschik +1
The 24 components of the relativistic spin tensor consist of 3+3 basic spin fields and 9+9 constitutive fields. Empirically only 3 basic spin fields and 9 constitutive fields are k…
Implementation of Liu's procedure in Mathematica for use in Relativistic Constitutive Theory
Heiko J. Herrmann
The aim of this article is to show, how computer algebra can be used when applying Liu's procedure. Although Mathematica (a commercial product by Wolfram Research Inc.) is used, it…