Results 121 to 130 of about 86,353 (166)

Impulsive Parametric Excitation: Theory

Journal of Applied Mechanics, 1972
Given in this paper is the development of a theory for dynamical systems subjected to periodic impulsive parametric excitations. By periodic impulsive parametric excitation we mean those excitations representable by periodic coefficients which consist of sequences of Dirac delta functions.
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The Theory of Parametric Identification

Econometrica, 1973
This paper sets out a general criterion for the identifiability of a statistical system, based on Kullback's information integral. It is shown that the general identification problem is equivalent to a maximisation problem, or where parameter restrictions are present, a problem in nonlinear programming.
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Parametrized Field Theory

Foundations of Physics, 1998
A theory is presented in which a field depends not only on spacetime coordinates xμ, but also on a Lorentz-invariant parameter τ. Such a theory is conceptually and technically simple and manifestly covariant at every step. The generator of evolution and the generator of spacetime translations and Lorentz transformations are obtained in a ...
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Quantum Theory of Parametric Amplification. I

Physical Review, 1967
The amplification of electromagnetic fields is analyzed in a quantum-mechanical context by discussing the behavior of a simple theoretical model of the parametric amplifier. The statistical properties of the amplifier fields are described by means of the time-dependent density operator for the system.
B. R. Mollow, R. J. Glauber
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The logic of parametric theories

Theoretical Linguistics, 2010
'Parameters in minimalist theory: The case of Scandinavian' (henceforth, PMT), by Anders Holmberg, is an interesting attempt to defend the view that 'deep parameters' should be part of the grammatical system. PMT argues that parameters should be seen as points of 'underspecification', and in part as 3 rd factor effects in the sense of Chomsky (2005) -
Terje Lohndal, Juan Uriagereka
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Theory of polariton parametric oscillator

Soviet Journal of Quantum Electronics, 1974
A theory is developed of the steady-state emission of light due to the stimulated Raman scattering by polaritons in a plane-parallel optical resonator. The emission occurs at the Stokes frequency in the presence of traveling pump and polariton waves.
V V Obukhovskii, V L Strizhevskii
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Interface with Parametric Theory

1989
The nonparametric approach to efficiency measurement has several levels of interaction with the parametric theory e.g., specification, aggregation and econometric estimation. Although the linear programming (LP) specification was used by both Farrell, Johansen and the founders of the DEA model, one could certainly use nonlinear and parametric ...
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Structured and Parametrized Theories

2006
In Chapter 5 we have seen a simple use of theories in OpenMath content dictionaries. There, theories have been used to reference OpenMath symbols and to govern their visibility. In this chapter we will cover an extended example showing the structured definition of multiple mathematical theories, modularizing and re-using parts of specifications and ...
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Introduction to Non-parametric Theories

1974
In the previous chapters we have frequently made use of the assumption that the set Γ of parameters is a (open or closed) subset of R n, n⩽1. In addition, in connection with essential results, we have imposed continuity and differentiability requirements on the likelihood function.
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