A5053391500- Theoretical and Computational Physics
- Dynamics and Control of Mechanical Systems
- Welding Techniques and Residual Stresses
- Stochastic processes and statistical mechanics
- Polymer crystallization and properties
- Additive Manufacturing and 3D Printing Technologies
- Geological Modeling and Analysis
- Geological formations and processes
- Rheology and Fluid Dynamics Studies
- Hydrocarbon exploration and reservoir analysis
- Additive Manufacturing Materials and Processes
- Railway Engineering and Dynamics
- Slime Mold and Myxomycetes Research
- Mechanical Engineering and Vibrations Research
- Topological and Geometric Data Analysis
- Structural Load-Bearing Analysis
- Advanced Numerical Methods in Computational Mathematics
- Markov Chains and Monte Carlo Methods
- Contact Mechanics and Variational Inequalities
- Mathematical Dynamics and Fractals
- Mechanical and Thermal Properties Analysis
- Microfluidic and Bio-sensing Technologies
- Hydraulic Fracturing and Reservoir Analysis
- Enhanced Oil Recovery Techniques
- Composite Structure Analysis and Optimization
Siemens (Germany)
1989-2022
Technische Universität Braunschweig
2015-2022
Software (Germany)
2021-2022
Karlsruhe Institute of Technology
2006-2010
A configuration of the Abelian sandpile model is called recurrent if grains sand can be added to it so that resulting relaxes original one; else transient. Given a transient configuration, results after adding enough sand. In case three-dimensional model, shown in this paper problem finding minimal number have given get one, interpreted as distance set configurations, NP-complete.
We discuss a very close relation between minimal recurrent configurations of Chip Firing Games and Directed Acyclic Graphs demonstrate the usefulness this by giving lower bound for number Abelian Sandpile Model as well firings which are caused addition two on particular graphs.
In modern assembly techniques in order to contact a large multilayer circuit board,complex connectors are necessary. To guarantee sufficiently high, uniformly distributed pressure the knowledge of deformation components under working conditions is indispensible. first part investigation deformations were measured with aid holographic interferometry. The load on was increased steps and therefore through summation total stresses via finite element method (FEM) can be combined results component...
We take a look at transient configurations of the Abelian Sandpile Model (ASM). If we add enough grains on "right" sites to this configuration get recurrent ASM. In paper show that it is NP-complete decide for c grid size m × and natural number k if possible sand such configuration. by reducing problem deciding whether given planar cubic graph n ∈ Θ(m) has vertex cover, which NP-complete, problem.
Abstract A new modeling approach for the force‐extension behavior of polymers and solution scheme within finite‐element framework are presented. More specifically, first variation energy function an initially curved extensible worm‐like chain [1] a geometrically exact beam‐element formulation [2] were used to validate model performing optimization procedure [3]. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Abstract A new finite‐element formulation for thin, arbitrarily curved rods based on the Kirchhoff theory is presented. More specifically, modeling approach includes parametrization, weak form of problem, and spatial discretization. Also, a numerical example adapted to show absence any locking‐effects. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)