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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 20 of 173 for “"Passivity"”.
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Passivity Based Control of Biped Robots
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Index analysis of semistate systems without passivity restrictions
… constitutive equations. In previous works, passivity assumptions on circuit devices have been very helpful to simplify the characterization of the index for the resulting models [48, 131, 139]. These assumptions amount to the positive definiteness of the incremental conductance and reactance …
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Dominance and Passivity in Marriage Counseling: 1962-1976
A successful insurance salesman remarked that his wife during their thirty years of marriage has taken care of all their financial matters and has made all of the major decisions in their family. He said that he constantly kept that fact in mind when he approached a prospective sale among white, …
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Passivity-Based Hands Towards General-Purpose Robotic Manipulation
… into our own designs. The concept of passivity-based design is presented. This seeks to extend embodied intelligence to passive hand behaviours, revealing design consideration and open challenges such as developing a benchmark to evaluate performance in general-purpose tasks. …
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Romantic Languor: Images of Passivity in Romantic Poetry
… poetry is filled with images of passivity to higher forces. Most common is the figure of the reclining poet, who invites inspiration or mystical, visionary experiences by relaxing mind and body and allowing wise, benevolent powers in nature or the
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Passivity-Based Control of Small Unmanned Aerial Systems
… computational cost of the resultant controller}. Passivity-based control presents a method to implement a static, nonlinear state feedback control law that stabilizes the motion of an aircraft with a large region of attraction. {color{black} The energy-based control scheme is applied to both …
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Passivity based control in software systems: example and case studies
In this thesis, we use passivity theory as an approach for dealing with dynamical systems, and demonstrate how to apply it to software systems in a general way. We first cover key results from passivity theory. Then, using an example, simulated system, we demonstrate how to design a controller …
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Passivity, no-regret, and performance in online learning and games
… the thesis investigates the interplay between passivity, no-regret and performance of continuous-time learning dynamics. The analysis is divided into two parts: (i) the interaction between a learning model and a dynamic, uncertain environment, and (ii) the interaction among multiple adaptive …
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Teleoperation of passivity-based model reference robust control over the internet
… a virtual communication environment for use in Passivity-Based Model Reference Robust Control systems with delays. The controller which is used as a carrier to support a robust communication between input-to-state stability is designed as a control strategy that passively compensates for …
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Passivity Methods for the Stabilization of Closed Sets in Nonlinear Control Systems
… and sufficient conditions under which a passivity-based feedback stabilizes a given goal set. The development of this result takes us to a journey through the so-called reduction problem: given two nested invariant sets G1 subset of G2, and assuming that G1 enjoys certain stability …
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Passivity-Based adaptive bilateral teleoperation control for uncertain manipulators without jerk measurements
… of the Lyapunov stability theory and the passivity formalism are used to establish the stability and convergence property of the closed-loop control system. Simulations and experimental results illustrate the performance and feasibility of the proposed control scheme.
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Broadband Macromodeling via a Fast Implementation of Vector Fitting with Passivity Enforcement
… fast fitting method for multiport devices. Passivity of the model, which is one of the most prominent issues on the subject, will be addressed. A robust algorithm, via residue perturbation, to enforce passivity in nonpassive models will be presented. Finally, numerical results will be …
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Materia in se sumta: Matter and Passivity in the Development of Leibniz’s Thought
Contains fulltext : 328265.pdf (Publisher’s version ) (Open Access)
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The Feel of the Road: Anxiety, Passivity, and Empathy in Postwar Women’s Road Narratives
… of anxiety in women’s road narratives—agency, passivity, and empathy—highlights the sociopolitical importance of anxiety as well as demonstrates how anxiety can create opportunities for feminist action and woman-centric communities on the road. I apply affect studies and an interdisciplinary …
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Experimental and Theoretical Investigation of Localized Ultrasonically-Induced Cavitation Effects on Electrochemical Passivity (Corrosion, Mass Transfer, Depassivation)
… ultrasound was used to study electrochemical passivity, and the processes controlling the depassivation and repassivation phenomena were quantitatively analyzed. Experimental investigations were coupled with theoretical models to enable the prediction and evaluation of mass transfer rates and …
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Studies on the Control of Metal Passivation in the Electrochemical Tunnel Etching of Aluminum (Corrosion, Passivity, Pitting Potential, Aluminum)
The mechanism controlling passivation of metal surface at tips of the corrosion tunnels formed on aluminum by anodic etching in hot aqueous chloride solutions was studied. In the hypothesized mechanism, electrolyte diffusion in the tunnels maintained the tips of all tunnels at the equilibrium …
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Control and stability of autonomous inverter-based microgrids
… presented and these are summarised below: (i) Passivity techniques are applied to the problem of stabilising an inverterbased microgrid. Representing the inverter and network models in the common reference frames, it is shown that microgrids can be described as the negative feedback …
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Parameterized modeling of multiport passive circuit blocks
… multiport devices from frequency response data. Passivity is enforced in the final models by constrained fitting, where the constraints are either Linear Matrix Inequalities or semidefinite constraints. These individual non-parameterized models can be used for system level simulations for fixed …
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Stability results for constrained dynamical systems
… LTI systems, where we focus on two properties: passivity and a generalization of passivity and small gain theorems called mixed property. These properties play an important role in the control design of large-scale interconnected systems. An important bottleneck for a design based on the …
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Input/output analysis: graphical and algorithmic methods
… Nyquist criterion, circle criterion, incremental passivity theorem, incremental small gain theorem and incremental secant condition. A novel special case of this theorem concerns systems which only violate the assumptions of the incremental passivity theorem when their incremental gains are small. …
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