That Little Girl Is You

https://digitalcommons.library.umaine.edu/mmb-vp/6538/thumbnail.jp

Process: A Graphic Essay

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Experimental observation of chimera and cluster states in a minimal globally coupled network

A "chimera state" is a dynamical pattern that occurs in a network of coupled identical oscillators when the symmetry of the oscillator population is broken into synchronous and asynchronous parts. We report the experimental observation of chimera and cluster states in a network of four globally coupled chaotic opto-electronic oscillators. This is the minimal network that can support chimera states, and our study provides new insight into the fundamental mechanisms underlying their formation. We use a unified approach to determine the stability of all the observed partially synchronous patterns, highlighting the close relationship between chimera and cluster states as belonging to the broader phenomenon of partial synchronization. Our approach is general in terms of network size and connectivity. We also find that chimera states often appear in regions of multistability between global, cluster, and desynchronized states

Delayed Dynamical Systems: Networks, Chimeras and Reservoir Computing

We present a systematic approach to reveal the correspondence between time delay dynamics and networks of coupled oscillators. After early demonstrations of the usefulness of spatio-temporal representations of time-delay system dynamics, extensive research on optoelectronic feedback loops has revealed their immense potential for realizing complex system dynamics such as chimeras in rings of coupled oscillators and applications to reservoir computing. Delayed dynamical systems have been enriched in recent years through the application of digital signal processing techniques. Very recently, we have showed that one can significantly extend the capabilities and implement networks with arbitrary topologies through the use of field programmable gate arrays (FPGAs). This architecture allows the design of appropriate filters and multiple time delays which greatly extend the possibilities for exploring synchronization patterns in arbitrary topological networks. This has enabled us to explore complex dynamics on networks with nodes that can be perfectly identical, introduce parameter heterogeneities and multiple time delays, as well as change network topologies to control the formation and evolution of patterns of synchrony

From Facts to Form: Extension and Application of the Feist Practical Inevitability Test and Creativity Standard

This Note will analyze the results of extending the practical inevitability test and creativity standard in the holding of Feist Publications, Inc. v. Rural Telephone Service Co. from works involving the compilation of facts to other works including computer programs, sculpture, signs, fabric patterns and chinaware patterns. It will also discuss the Copyright Office\u27s review of copyright applications for functional objects. The Note will continue with an analysis of the ramifications of the policy of judicial deference to the Register of Copyright\u27s decision on creativity when reviewing a copyright denial. It will conclude with a discussion of the judicial policy that an action for infringement is the most appropriate place to determine the creativity element necessary for obtaining a copyright for functional objects

A descriptive analysis of the techniques and procedures used in establishing and conducting a distributive education cooperative training program,

Thesis (M.A.)--Boston University, 1949. This item was digitized by the Internet Archive