Search Results: 'NLS'

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5 results for "NLS"
Geeks Bearing Gifts By Ted Nelson
Paperback: $19.96
Ships in 3-5 business days.
(3 Ratings)
THE PERFECT GIFT – Whether you love the computer world the way it is, or consider it a nightmare honkytonk prison, you'll giggle and rage at Ted Nelson's telling of computer history, its... More > personalities and infights. Computer movies, music, 3D; the eternal fight between Jobs and Gates; the tangled stories of the Internet and the World Wide Web; all these and more are punchily told in brief chapters on many topics such as The Web Browser Salad, Voting Machines, Google, Web 2.0 and much more. These short stories make great reading – it's a book to dip in and out of. You'll find answers to such questions as "Why do alphabets have upper case, why not numbers?""Why does everything have to be hierarchical on computers? That's not how *my* projects are organized!" "Where did WYSIWYG come from?" The answer will surprise you. Plus, you'll find out why the author, a well-known computer veteran, hopes it can all become much better.< Less
Azimuthal Modulational Instability of Vortex Solutions to the Two Dimensional Nonlinear Schrödinger Equation By Ronald Meyer Caplan
Paperback: $25.00
Ships in 3-5 business days.
We study the azimuthal modulational instability (MI) of vortices with different topological charges, in the focusing two-dimensional nonlinear Schrödinger (NLS) equation. The method of studying... More > the stability relies on freezing the radial direction in the Lagrangian functional of the NLS in order to form a quasi-one-dimensional azimuthal equation of motion, and then applying a stability analysis in Fourier space of the azimuthal modes. We formulate predictions of growth rates of individual modes and find that vortices are unstable below a critical azimuthal wave number. Steady state vortex solutions are found by first using a variational approach to obtain an asymptotic analytical ansatz, and then using it as an initial condition to a nonlinear equation numerical optimization routine. The stability analysis predictions are corroborated by direct numerical simulations of the NLS performed on a polar coordinate finite-difference scheme.< Less
Azimuthal Modulational Instability of Vortex Solutions to the Two Dimensional Nonlinear Schrödinger Equation By Ronald Meyer Caplan
eBook (PDF): $2.50
Download immediately.
We study the azimuthal modulational instability (MI) of vortices with different topological charges, in the focusing two-dimensional nonlinear Schrödinger (NLS) equation. The method of studying... More > the stability relies on freezing the radial direction in the Lagrangian functional of the NLS in order to form a quasi-one-dimensional azimuthal equation of motion, and then applying a stability analysis in Fourier space of the azimuthal modes. We formulate predictions of growth rates of individual modes and find that vortices are unstable below a critical azimuthal wave number. Steady state vortex solutions are found by first using a variational approach to obtain an asymptotic analytical ansatz, and then using it as an initial condition to a nonlinear equation numerical optimization routine. The stability analysis predictions are corroborated by direct numerical simulations of the NLS performed on a polar coordinate finite-difference scheme.< Less
Awakening the Laughing Buddha within By Joe Hoare, The Barefoot Doctor
Paperback: $12.72
Ships in 3-5 business days.
This book is a pioneering & unique blend of Taoism with the healing power of laughter. It helps you stay upbeat in a crazy world, so you live a rich, fulfilled, happy life on your own terms. It... More > combines laughter readiness with laughter yoga, nls: natural laughter skills with laughter the best medicine. It is a story, a manual, and a guide to help you awaken your own laughing Buddha within and live a life of fulfillment and delight. By following the progressive set of simple exercises you boost your physical & emotional health, ease stress & depression, and develop an open-hearted connection with yourself and others.< Less
5-Element Fundamentals and Muscle Test Basics By Dr Bruce Dewe, Joan Dewe
Paperback: $44.50
Ships in 3-5 business days.
This workshop contains K-Power®’s basic tool-box. The ‘must-have’ skills: using the fundamental concepts of Five-Element theory, the ‘great-8’ muscles; the CV and GV... More > energy reservoirs; six basic balancers - NLs, NEs, NVs, meridians, VRs, nutrition; four fundamental techniques - ESR, origin and insertion, spindles, golgi; circuit locating and how to shift blocked energy using a powerful goal-oriented balancing process. The International College of Professional Kinesiology Practice (ICPKP), www.icpkp.com, offers a 4 year Diploma in Kinesiology that is accredited by NZQA. This is for people wanting to become professional Registered Kinesiologists. The K-Power® series has been developed from these teaching modules, created by Dr. and Mrs. Dewe. These workshops are available for CEUs to professionals who want some muscle testing knowledge to apply to their own specialty.< Less