22 citations · 41 across the 14 of their papers we have counts for
4 papers · 1 filter
Local Path Fitting: A New Approach to Variational Integrators
D S Vlachos, O T Kosmas
In this work, we present a new approach to the construction of variational integrators. In the general case, the estimation of the action integral in a time interval $[q_k,q_{k+1}]…
Phase-fitted Discrete Lagrangian Integrators
O. T. Kosmas, D. S. Vlachos
Phase fitting has been extensively used during the last years to improve the behaviour of numerical integrators on oscillatory problems. In this work, the benefits of the phase fit…
Operational Optimal Ship Routing Using a Hybrid Parallel Genetic Algorithm
O. T. Kosmas, D. S. Vlachos
Optimization of ship routing depends on several parameters, like ship and cargo characteristics, environmental factors, topography, international navigation rules, crew comfort etc…
Gamma Ray Spectrum Unfolding Using Derivative Kernels
D. S. Vlachos, O. T. Kosmas
The unfolding of a gamma ray spectrum experience many difficulties due to noise in the recorded data, that is based mainly on the change of photon energy due to scattering mechanis…