Results 21 to 30 of about 88,487 (267)
Remote Sensing, 2023 Synthetic aperture radar (SAR) imagers are active microwave sensors that could overcome many challenges of passive optical bathymetry inversion, yet their capacity to yield accurate high-resolution bathymetric mapping is not studied sufficiently. In this
Sanduni D. Mudiyanselage +2 more
doaj +1 more source
Dispersion relations and the nucleon polarizability
Physical Review D, 1994 Recent experimental results on the proton and neutron polarizabilities are examined from the point of view of backward dispersion relations. Results are found to be in reasonable agreement with the measured values. A rigorous relationship between the nucleon and pion polarizabilities is derived and shown to be in excellent agreement with several models.
Holstein, BR, NATHAN, AM
openaire +4 more sources
The General Dispersion Relation for the Vibration Modes of Helical Springs
Mathematics, 2022 A system of mathematical equations was developed for the calculation of the natural frequencies of helical springs, its predictions being compared with finite element simulation with ANSYS®.
Leopoldo Prieto +3 more
doaj +1 more source
Nanomaterials, 2021 In this work, we study the effects of nonlocality on the optical response near surface plasmon resonance of the Otto structure, and such nonlocality is considered in the hydrodynamic model.
Lin Wang +3 more
doaj +1 more source
Dispersion relations in string theory [PDF]
Theoretical and Mathematical Physics, 1994 We analyze the analytic continuation of the formally divergent one-loop amplitude for scattering of the graviton multiplet in the Type II Superstring. In particular we obtain explicit double and single dispersion relations, formulas for all the successive branch cuts extending out to plus infinity, as well as for the decay rate of a massive string ...
D'Hoker, Eric, Phong, D. H.
openaire +3 more sources
Leaky waves in planar dielectric waveguide
Discrete and Continuous Models and Applied Computational Science, 2019 A new analytical and numerical solution of the electrodynamic waveguide problem for leaky modes of a planar dielectric symmetric waveguide is proposed.
Dmitriy V. Divakov +4 more
doaj +1 more source
Dispersion relation for hadronic light-by-light scattering
EPJ Web of Conferences, 2016 The largest uncertainties in the Standard Model calculation of the anomalous magnetic moment of the muon (g − 2)μ come from hadronic contributions. In particular, in a few years the subleading hadronic light-by-light (HLbL) contribution might dominate ...
Procura Massimiliano +3 more
doaj +1 more source
Dispersive Optical Potential Study for Proton-Nucleus Scattering Using Dispersion Relations [PDF]
مجلة جامعة الانبار للعلوم الصرفة: Usually in nucleon-nucleon reactions, optical potential is used to study the nuclear structures resulting from these reactions. As this potential during the reaction is subject to dispersion by the nuclei surface as well as the total size of the ...
marow soad, Akram Ali
doaj +1 more source
Mathematics, 2022 A class of problems of wave propagation in waveguides consisting of one or several layers that are characterized by linear variation of the squared refractive index along the normal to the interfaces between them is considered in this paper.
Andrey Matskovskiy +2 more
doaj +1 more source
Dispersion relations in noncommutative theories [PDF]
Physical Review D, 2007 We present a detailed study of plane waves in noncommutative abelian gauge theories. The dispersion relation is deformed from its usual form whenever a constant background electromagnetic field is present and is similar to that of an anisotropic medium with no Faraday rotation nor birefringence. When the noncommutativity is induced by the Moyal product
Mariz, Tiago +2 more
openaire +2 more sources