Results 111 to 120 of about 145,596 (168)
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Physical Review B, 1990
On demontre l'exactitude d'une methode de calcul d'une theorie de structure electronique. La methode combine le pouvoir et la flexibilite de l'onde plane amelioree avec la methode de Car-Parrinello de dynamique moleculaire et de minimisation de l'energie totale.
, Soler, , Williams
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On demontre l'exactitude d'une methode de calcul d'une theorie de structure electronique. La methode combine le pouvoir et la flexibilite de l'onde plane amelioree avec la methode de Car-Parrinello de dynamique moleculaire et de minimisation de l'energie totale.
, Soler, , Williams
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Journal of Physical Oceanography, 1981
Abstract A general theory for forced barotropic long trench waves in the presence of linear bottom friction is presented. Two specific forcing mechanisms are considered: (i) transverse fluctuations in a western boundary current as it flows across a trench, and (ii) a traveling wind system that moves parallel to the trench.
Lawrence A. Mysak, Andrew J. Willmott
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Abstract A general theory for forced barotropic long trench waves in the presence of linear bottom friction is presented. Two specific forcing mechanisms are considered: (i) transverse fluctuations in a western boundary current as it flows across a trench, and (ii) a traveling wind system that moves parallel to the trench.
Lawrence A. Mysak, Andrew J. Willmott
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External forcing of spiral waves
Chaos: An Interdisciplinary Journal of Nonlinear Science, 1994The effect of an external rhythm on rotating spiral waves in excitable media is investigated. Parameters of the unperturbed medium were chosen, such that the organizing spiral tip describes meandering (hypocyclic) trajectories, which are the most general shape for the experimentally observed systems.
Vladimir S., Zykov +2 more
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Reviews of Geophysics, 1978
This paper concerns the linear response of the ocean to forcing at a specified frequency and wave number in the absence of mean currents. It discusses the details of the forcing function, the general properties of the equations of motion, and possible simplifications of these equations.
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This paper concerns the linear response of the ocean to forcing at a specified frequency and wave number in the absence of mean currents. It discusses the details of the forcing function, the general properties of the equations of motion, and possible simplifications of these equations.
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Identification Of Nonlinear Wave Forces
Journal of Fluids and Structures, 1994Abstract This paper is concerned with the time and frequency-domain analysis of nonlinear wave force data. In the first half of the paper, the time-domain NARMAX modelling technique is applied to a number of fluid loading data sets in order to establish if there exists a simple extension of Morison's equation which will predict forces with improved ...
Worden, K +3 more
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Ocean Engineering, 1989
Abstract Potential solutions describing the flow about two-dimensional marine structures on or near the ocean bottom are formulated, based on Airy's wave model. The solutions for a half-cylinder and semicircular shell are considered in detail and evaluated in the case of deep submergence. The formulation with and without flow underneath the structure
Subrata K. Chakrabarti +1 more
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Abstract Potential solutions describing the flow about two-dimensional marine structures on or near the ocean bottom are formulated, based on Airy's wave model. The solutions for a half-cylinder and semicircular shell are considered in detail and evaluated in the case of deep submergence. The formulation with and without flow underneath the structure
Subrata K. Chakrabarti +1 more
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Quasi‐geostrophic planetary wave forcing
Quarterly Journal of the Royal Meteorological Society, 1978AbstractThe problem of stationary planetary wave forcing by orography and longitudinal asymmetry of heating is re‐examined in the light of recent observations and theories of stratospheric motion. It is deduced that the region between 30 and 60km is a sink of planetary wave energy for zonal wavenumbers one and two in winter and that, in contrast to ...
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Ocean Wave Force Instrumentation
Journal of the Waterways and Harbors Division, 1966The need for improved design data for use in design of offshore structures resulted in the design, construction, and operation of instrumentation for measuring forces exerted by large ocean waves on structural members. The resulting equipment, installation, and calibration techniques are described along with brief comments on developmental philosophy ...
Thomas L. Russell +2 more
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Force-free electromagnetic waves
Solar Physics, 1988The time-dependent Force-Free Electromagnetic Field (FFEMF) is studied. In contrast to the case of Force-Free Magnetic Field (FFMF), it is shown that the FFEMF can occur in the form of waves. The FFEMF wave equation is solved in the case of one spatial dimension. Besides a periodical linear FFEMF wave solutions, the existence of solitary wave solutions
Vladimir A. Osherovich, Erast B. Gliner
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Wave equations for matter force waves
Russian Physics Journal, 1994zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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