Cuspy triaxial potentials admit a large number of chaotic orbits, which moreover exhibit extreme “stickiness” that makes the process of chaotic mixing surprisingly inefficient. Environmental effects, modeled as noise and/or periodic driving, help accelerate phase space transport but probably not as much as in simpler potentials. This could mean that cuspy triaxial ellipticals cannot exist as ti...

Experiments and theory characterize the novel chaotic neoclassical transport scaling as νcB in contrast to traditional collisional neoclassical transport scaling as ν 1/2 c B−1/2. This chaotic transport occurs when local trapping separatrices have θ-variations or temporal fluctuations. Experiments observe bulk particle transport, damping of Langmuir waves and diocotron waves, and nonlinear wave...

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Readout Techniques for High-Q Micromachined Vibratory Rate Gyroscopes

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1 Mathematics Department, Preparatory Year Deanship, UmmAl-Qura University, P.O. Box 5555, Makkah 21955, Saudi Arabia 2 Faculty of Science, Tanta University, P.O. Box 31527, Tanta, Egypt 3 Mathematics Department, Faculty of Girls Education and Science, Taif University, Al-Khurmah Branch, P.O. Box 888, Taif 21974, Saudi Arabia 4 Electricity Department, Faculty of Engineering, Umm Al-Qura Univers...