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.
Results
Showing 1 to 11 of 11 for “"input-output systems"”.
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Numerical Estimation of L2 Gain for Nonlinear Input-Output Systems
… gain in the transfer of energy from admissible input signals to the output signals, in which both the input and output signals are measured with the L2 norm. For general nonlinear systems, obtaining a sharp estimate of the L2 gain is challenging both theoretically and numerically. In this …
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Stability of static input-output systems with optimized subsystems: quantity and price models
… of the pattern of structural change in a static input-output system is considered, when a series of operational optimizations are performed in one or more subsystems. Specifically, changes in the relative price of each commodity in an economy, along with their implications for the quantities …
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Wavelet-based Dynamic Mode Decomposition in the Context of Extended Dynamic Mode Decomposition and Koopman Theory
… for data-driven modeling of nonlinear dynamical systems. One of the well-known algorithms that stem from this approach is the Extended Dynamic Mode Decomposition (EDMD), a data-driven algorithm for uncontrolled systems. In this thesis, we will start by discussing the EDMD algorithm. We will …
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Input-output biomolecular systems
… These reaction networks can be modeled as input-output systems, where the input, state and output variables are concentrations of the biomolecules involved in these reactions. Tools from non-linear dynamics and control theory can be leveraged to analyze and control these systems. In this …
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Sum rules and constraints on passive systems - a general approach and applications to electromagnetic scattering
Physical processes are often modeled as input-output systems. Many such systems obey passivity, which means that power is dissipated in the process. This thesis deals with the inevitable constraints imposed on physical systems due to passivity. A general approach to derive sum rules and physical …
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Reduction of periodic systems with partial Floquet transforms
Input-output systems with time periodic parameters are commonly found in nature (e.g., oceanic movements) and engineered systems (e.g., vibrations due to gyroscopic forces in vehicles). In a broader sense, periodic behaviors can arise when there is a dynamic equi- librium between inertia and …
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Integral Identities for Passive Systems and Spherical Waves in Scattering and Antenna Problems
… model antenna-channel interaction and multiple-input multiple-output (MIMO) communication systems. This thesis is also the first to present a method to estimate spherical wave coefficients from propagation channel measurements. The results of this thesis can roughly be divided into three …
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Modularity of signaling cycle architectures
… effect of retroactivity applied by downstream systems and hence facilitate modular design in synthetic biology. Phosphorylation cycles are ubiquitous in cell signal-transduction systems. Single phosphorylation cycles have been found to have insulating properties that reduce the effect of …
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Input/output analysis: graphical and algorithmic methods
This thesis describes new methods in input/output systems theory. The first part of this thesis develops a novel graphical method for the stability analysis of feedback systems. The Scaled Relative Graph (SRG), a recent concept from monotone operator theory, is shown to generalize the classical …
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Studies in system representation and control
… is done via representations. For discrete-time input-output systems, infinite-matrix kernel representation is the most general representation. We use the notion of finite-horizon systems to characterize all operators defined on $\ell\sb{p}$ spaces, $p\in\lbrack1, \infty$) that can be represented …
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Trade and Spatial Economic Interdependence: U.S. Interregional Trade and Regional Economic Structure
… as follows: where are the main sources of inputs and markets for each region and how have they changed over time?; to what extent is interregional trade beneficial to the regions?; and what, if any, related public policies might be considered to enhance the region’s economic well being? …