Complex Networked Control Systems

This special section focuses on the study of network architectures and their formation as well as on the description of dynamical processes that take place over networks. A common thread throughout the five articles is the role of distributed processing and control, as well as the search for network-growth mechanisms that give rise to the desired structure and behavior

Introduction: Localized Structures in Dissipative Media: From Optics to Plant Ecology

Localised structures in dissipative appears in various fields of natural science such as biology, chemistry, plant ecology, optics and laser physics. The proposed theme issue is to gather specialists from various fields of non-linear science toward a cross-fertilisation among active areas of research. This is a cross-disciplinary area of research dominated by the nonlinear optics due to potential applications for all-optical control of light, optical storage, and information processing. This theme issue contains contributions from 18 active groups involved in localized structures field and have all made significant contributions in recent years.Comment: 14 pages, 0 figure, submitted to Phi. Trasaction Royal Societ

A Journal-Driven Bibliography of Digital Humanities

Digital Humanities Quarterly (DHQ) seeks Level II funding to develop a bibliographic resource through which the journal can create, manage, export, and publish high-quality bibliographic data from DHQ articles and their citations, as well as from the broader digital humanities research domain. Drawing on data from this resource, we will develop visualizations through which readers can explore citation networks and find related articles. We will also publish the full bibliography as a public web-based service that reflects the profile of current digital humanities research. The bibliography will be maintained and expanded through incoming DHQ articles and citations, and through contributions from the DH community. DHQ is an open-access online journal published by the Alliance of Digital Humanities Organizations (ADHO), hosted at Brown University and Indiana University, and serves as a crucial point of encounter between digital humanities research and the wider humanities community

CROSS-IDEOLOGICAL SOLAR POWER COALITIONS IN THE AMERICAN SOUTH: AN ADVOCACY COALITION APPROACH

Abstract CROSS-IDEOLOGICAL SOLAR POWER COALITIONS IN THE AMERICAN SOUTH: AN ADVOCACY COALITION APPROACH By Brian T. Toibin, Ph.D. A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Public Policy and Administration at Virginia Commonwealth University. Virginia Commonwealth University, 2018. Major Director: Dr. Damian Pitt Associate Professor of Urban and Regional Studies and Planning L. Douglas Wilder School of Government and Public Affairs The purpose of this study was to explore two particular cross-ideological coalitions that have formed in order to promote pro-solar power policies in Georgia and Florida through the lens of the Advocacy Coalition Framework. The membership of the coalitions include individuals and organizations from opposite sides of the current prevailing ideological spectrum which united to support pro-solar policies for reasons that are consistent with their ideological worldview. The coalition in Georgia is known as the Green Tea Coalition and the coalition in Florida is known as Floridians for Solar Choice. This qualitative study was guided by the following questions: 1) Why did supporters of solar power organize themselves into the particular coalition structures represented by Georgia’s Green Tea Coalition and the Floridians for Solar Choice Coalition?; 2) How have Georgia’s Green Tea Coalition and the Floridians for Solar Choice Coalition successfully managed their policy coalitions?; 3) How effective are these coalitions perceived to be by public policy players outside the coalitions?; 4) Do the Green Tea Coalition and the Floridians for Solar Choice Coalition represent an Advocacy Coalition approach? Engaging these questions through the effective theoretical lens of the Advocacy Coalition Framework revealed a compelling example of cross-ideological cooperation within an increasingly divided political culture. Significant lessons concerning the formation and successful operation of coalitions were learned. The importance of strategic alliances, public belief systems, policy messaging, electorate education, policy learning, and careful political positioning are a few of the factors that enabled these coalitions to find success. The political success of these coalitions significantly advanced the role that solar power will be allowed to play in the future energy portfolio of these two influential states in the American South and across the country. While the positive results for the future of solar power engineered by the coalitions are impressive, perhaps the most important lessons revealed by the study concern the potential for progress and cooperation on other complex issues. A portfolio of difficult issues awaits action by persons of good faith willing to find a cooperative path on which to move forward. Coalitions will be required to address many of these difficult problems. The lessons and example provided by these two cross-ideological coalitions may help others produce a their own blueprint to encourage cross-ideological cooperation. This cooperation will be required if progress is to be made for the well being of current and future generations

An adaptive observer-based controller design for active damping of a DC network with a constant power load

This article explores a nonlinear, adaptive controller aimed at increasing the stability margin of a direct-current (dc), small-scale, electrical network containing an unknown constant power load (CPL). Due to its negative incremental impedance, this load reduces the effective damping of the network, which may lead to voltage oscillations and even to voltage collapse. To overcome this drawback, we consider the incorporation of a controlled dc-dc power converter in parallel with the CPL. The design of the control law for the converter is particularly challenging due to the existence of unmeasured states and unknown parameters. We propose a standard input-output linearization stage, to which a suitably tailored adaptive observer is added. The good performance of the controller is validated through experiments on a small-scale network

Rollins College Winter Term 1990

Rollins College catalogue with list of faculty and students and courses by department

Rollins College Winter Term 1990

Rollins College catalogue with list of faculty and students and courses by department