Results 41 to 50 of about 6,846,631 (327)

Neutron-anti-neutron oscillation: theory and phenomenology [PDF]

open access: yes, 2009
The discovery of neutrino masses has provided strong hints in favor of the possibility that B–L symmetry is an intimate feature of physics beyond the standard model.
R. Mohapatra
semanticscholar   +1 more source

On oscillating radial solutions for non-autonomous semilinear elliptic equations

open access: yesAIMS Mathematics
We consider semilinear elliptic equations of the form $ \Delta u + f(|x|, u) = 0 $ on $ {\mathbb{R}}^{N} $ with $ f(|x|, u) = q(|x|)g(u) $. These type of equations arise in various problems in applied mathematics, and particularly in the study of ...
H. Al Jebawy, H. Ibrahim, Z. Salloum
doaj   +1 more source

Impact of Neutrino Oscillation Measurements on Theory

open access: yes, 2003
Neutrino oscillation data had been a big surprise to theorists, and indeed they have ongoing impact on theory. I review what the impact has been, and what measurements will have critical impact on theory in the future.Comment: 8 pages, uses aipproc, 6 ...
Murayama, Hitoshi
core   +2 more sources

Signal-to-pump back-action and self-oscillation in Double-Pump Josephson Parametric Amplifier [PDF]

open access: yes, 2009
We present the theory of a Josephson parametric amplifier employing two pump sources. Our calculations are based on Input-Output Theory, and can easily be generalized to any coupled system involving parametric interactions.
A. Yariv   +7 more
core   +1 more source

Relative oscillation theory for matrix Sturm-Liouville difference equations extended

open access: yes, 2013
In this article we establish relative oscillation theorems for two discrete matrix Sturm-Liouville eigenvalue problems with Dirichlet boundary conditions and nonlinear dependence on the spectral parameter λ. This nonlinear dependence on λ is allowed both
J. Elyseeva
semanticscholar   +1 more source

Perturbation Theory of Neutrino Oscillation with Nonstandard Neutrino Interactions

open access: yes, 2009
We discuss various physics aspects of neutrino oscillation with non-standard interactions (NSI). We formulate a perturbative framework by taking \Delta m^2_{21} / \Delta m^2_{31}, s_{13}, and the NSI elements \epsilon_{\alpha \beta} (\alpha, \beta = e ...
  +39 more
core   +1 more source

Theory of laser oscillation in resonators with photorefractive gain [PDF]

open access: yes, 1985
A theory for oscillation in an optical resonator with photorefractive gain was formulated. The threshold conditions for the oscillation were also obtained.
Kwong, Sze-Keung, Yariv, Amnon
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Oscillation of solutions for second-order neutral multi-delay differential equations

open access: yesAIMS Mathematics
This paper investigates the oscillatory behavior of solutions for a class of second-order neutral differential equations with multiple delays. By employing rigorous analytical methods, we establish sufficient oscillation criteria that guarantee solutions
Lanshuo Hua   +3 more
doaj   +1 more source

Research on Low-Frequency Oscillation Damping Control of Wind Storage System Based on Pareto and Improved Particle Swarm Algorithm

open access: yesApplied Sciences, 2023
Aiming at the low-frequency oscillation problem of high-proportion wind power and energy storage connected to the power system, this paper establishes a system small signal model according to the matrix similarity theory, which lays a foundation for the ...
Yu Song, Shouyuan Wu
doaj   +1 more source

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