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Whenever there is a time delay in a dynamical system, the study of stability becomes an infinite-dimensional problem. The centre manifold theorem, together with the classical Hopf bifurcation, is the most valuable approach for simplifying the infinite-dimensional problem without the assumption of small time delay. This dimensional reduction is illustrated(More)
  • CHATTER MACHINING, M. S. Fofana, Ismail Ä3Å, Tobias Ä6Å
  • 2000
This paper investigates the influence of nonlinear regenerative chatter and a random fluctuating spring force on the stability of orthogonal machining. Sufficient conditions guaranteeing stable and unstable machining are derived by the linearized stability analysis of a transcendental characteristic equation for steady state machining. The corresponding(More)
UNLABELLED Introduction Hospitals are meant to be places for respite and healing; however, technological advances and reliance on monitoring alarms has led to the environment becoming increasingly noisy. The coronary care unit (CCU), like the emergency department, provides care to ill patients while being vulnerable to noise pollution. The World Health(More)
This report represents the work of WPI undergraduate students submitted to the faculty as evidence of a degree requirement. WPI routinely publishes these reports on its web site without editorial or peer review. For more information about the projects program at WPI, see Abstract This project has developed a modular sensor network to localize two-way radio(More)
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