Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Kontrolltheorie"”.
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Control of open quantum systems : a theoretical approach to control of surface Photochemistry
… Berechnung von Kontrollfeldern ist die optimale Kontrolltheorie (Opimal Control Theory (OCT)). In dieser Arbeit wurde ein Kontrollkonzept, das auf OCT mit zeitabhängiger Zielfunktion beruht, verwendet, um das dissipative Verhalten offener Quantensysteme zu minimieren. Um Kontrolle über offene …
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On the geometry and parametrization of almost invariant subspaces and observer theory
In my Ph.D. thesis "On the geometry and parametrization of almost invariant subspaces and observer theory" I consider the set of almost conditioned invariant subspaces of fixed dimension for a given fixed linear finite-dimensional time-invariant observable control system in state space form. Almost …
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Stabilizability, controllability and optimal strategies of linear and nonlinear dynamical games
In this work we investigate besides the optimal control theory, also dynamic game theory in case of linear and nonlinear differential systems. In Chapter 1 the most important results of the linear control theory are presented, whereby also for some classical statements modified proof and resuming …
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Formal computational methods for control theory
This thesis treats structural properties of control systems, e.g. controllability and parametrizability of their behavior, from an algebraic point of view. It contributes the following formal computational methods. Janet's algorithm is extended to Ore algebras which are relevant for system …
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Laser-control of molecular dynamics
In this work a new algorithm to determine quantum control fields from the instantaneous response of systems has been developed. The derived fields allow to establish a direct connection between the applied perturbation and the molecular dynamics. The principle is most easily illustrated in …
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Selective excitation of adsorbate vibrations on dissipative surfaces
The selective infrared (IR) excitation of molecular vibrations is a powerful tool to control the photoreactivity prior to electronic excitation in the ultraviolet / visible (UV/Vis) light regime ("vibrationally mediated chemistry"). For adsorbates on surfaces it has been theoretically predicted …
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Graph and 2-D optimization theory and their application for discrete simulation of gas transportation networks and industrial processes with repetitive operations
In Chapter 1, the new algorithm for optimization of graph networks used the iterative procedure based on the principle of the decreasing suboptimality estimate and exploiting the duality theory. Also, 2-D system setting approach for studying optimal control programm for gas pressure and gas flow at …