Results 241 to 250 of about 1,019,487 (291)
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1983
In the previous chapter we introduced coupled mode theory to describe propagation on waveguides with slight perturbations which vary arbitrarily with distance along the waveguide. Here we consider waveguides with arbitrarily large nonuniformities, but with the proviso that they vary slowly along the length of the waveguide. We introduced the concept of
Allan W. Snyder, John D. Love
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In the previous chapter we introduced coupled mode theory to describe propagation on waveguides with slight perturbations which vary arbitrarily with distance along the waveguide. Here we consider waveguides with arbitrarily large nonuniformities, but with the proviso that they vary slowly along the length of the waveguide. We introduced the concept of
Allan W. Snyder, John D. Love
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1994
Active object-oriented database systems are especially useful in the area of nonstandard applications in order to implement an event-driven and constraint-driven system environment. Several approaches exist in literature integrating active concepts into object-oriented databases.
G. Kappel +2 more
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Active object-oriented database systems are especially useful in the area of nonstandard applications in order to implement an event-driven and constraint-driven system environment. Several approaches exist in literature integrating active concepts into object-oriented databases.
G. Kappel +2 more
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Optica Acta: International Journal of Optics, 1985
(1985). Coupled Mode Theory. Optica Acta: International Journal of Optics: Vol. 32, No. 8, pp. 845-846.
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(1985). Coupled Mode Theory. Optica Acta: International Journal of Optics: Vol. 32, No. 8, pp. 845-846.
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Journal of Sound and Vibration, 1975
The dynamic response of a simple two degree-of-freedom mechanical analogue is investigated to illustrate the nature of mode interaction that exists for systems in which the stiffness against vibration in one mode is sensitive to the amplitude of the vibration response in the second possible mode.
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The dynamic response of a simple two degree-of-freedom mechanical analogue is investigated to illustrate the nature of mode interaction that exists for systems in which the stiffness against vibration in one mode is sensitive to the amplitude of the vibration response in the second possible mode.
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1963
Abstract : This report describes a parametric study of stiffened cones and cylinders to analytically determine the effects of a longitudinal steady state driving force on the radial velocity of axially symmetric shells. The lumped-mass technique is utilized to predict the natural frequencies, mode shapes and impedances (point and transfer) for eight ...
E. L. North, R. J. McGrattan
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Abstract : This report describes a parametric study of stiffened cones and cylinders to analytically determine the effects of a longitudinal steady state driving force on the radial velocity of axially symmetric shells. The lumped-mass technique is utilized to predict the natural frequencies, mode shapes and impedances (point and transfer) for eight ...
E. L. North, R. J. McGrattan
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Possible negative mode-mode coupling in
Journal of Physics: Condensed Matter, 1999We have measured the magnetization M(H) of the heavy-fermion antiferromagnet , and found that the inverse of the gradient of the linear plot of against , g(T), is negative at low temperatures. As temperature is raised, g(T) shows a rapid increase and approaches zero at around , at which temperature the magnetic susceptibility exhibits a maximum.
N K Sato +5 more
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Coupled-mode theory for LP modes
Journal of Lightwave Technology, 1986A generalized definition of LP modes is introduced for an optical fiber with arbitrary refractive-index profile and arbitrary cross section, The orthogonality property of these LP modes has been considered. Based on a complete set of LP modes in a chosen reference fiber, a set of coupled-mode equations describing a practical fiber are established ...
null Jing-ren Qian, null Wei-ping Huang
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Mode-mode coupling in incipient ferroelectrics
Ferroelectrics, 1978The softening of the lowest infrared active vibration which leads to the ferroelectric instability in perovskite crystals is currently explained in terms of mode-mode interactions.1 There exists, at the present time, no microscopic basis for the calculation of the coupling coefficients, which had to be taken as parameters of the theory.
R. Migoni, H. Bilz, D. Bauerle
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Influence of mode coupling on differential mode delay
Applied Optics, 1983The manner in which the differential mode delay (DMD) pulse response is affected by ellipticity- and microbending-induced mode coupling has been analyzed numerically. We have considered both a fiber profile containing a central index dip and fiber profiles with sinusoidal ripples.
B, Stoltz, D, Yevick
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Coupling Phenomenon of Torsional Modes
IEEE Power Engineering Review, 1989The level of coupling of the oscillatory mode A to the oscillatory mode B is a measure of tendency of mode B to interact and affect the frequency and/or the amplitude and/ or the damping of mode A. Although the coupling phenomenon of the low frequency (0.1-2.0 Hz) oscillatory modes of power systems has been investigated, however, the coupling ...
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