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pro vyhledávání: '"Sameen Ahmed Khan"'
Autor:
Sameen Ahmed Khan
Publikováno v:
Results in Optics, Vol 13, Iss , Pp 100569- (2023)
Anisotropic Airy beams are presented as solutions to the parabolic wave equation. We obtain the cross polarization terms in the new beams using the elegant Mukunda–Simon–Sudarshan matrix substitution rule for transition from Helmholtz scalar wave
Externí odkaz:
https://doaj.org/article/ca5e43e7b5aa405ca10832161704ddfc
Autor:
Sameen Ahmed Khan
Publikováno v:
Results in Optics, Vol 13, Iss , Pp 100527- (2023)
One possible way to generalize scalar to wave optics, thus including polarization in the treatment consistent with the Maxwell equations was shown by Mukunda, Simon and Sudarshan (MSS) for paraxial systems, based on a group theoretical analysis. Late
Externí odkaz:
https://doaj.org/article/4e9a6d759fe544679a2b9db124e51801
Publikováno v:
Ecology, Environment and Conservation. :558-567
Oman is located within Arid and Semi-Arid regions, where water resources are very scarce. The national average rainfall is just 80-100 mm per year. With high temperatures (30 ºC to above 40 ºC) the evaporation is also high. Therefore, it is abs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b40d8a27478b6b844d4ab330ed9db8c
https://doi.org/10.53550/eec.2022.v28i01.084
https://doi.org/10.53550/eec.2022.v28i01.084
Autor:
Musallam Tabook, Sameen Ahmed Khan
Publikováno v:
International Journal of Energy Economics and Policy, Vol 11, Iss 6, Pp 517-522 (2021)
The world-wide energy demand is continuously increasing compounded with global warming. There is an ever-increasing demand in energy accompanied with depletion of fuel stocks, particularly the fossil fuels. The current energy consumption rates are un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bca66988fa2ab2d9458ad6efeed54cb
https://econjournals.com/index.php/ijeep/article/view/11855
https://econjournals.com/index.php/ijeep/article/view/11855
Autor:
Sameen Ahmed Khan
Publikováno v:
Mathematics and Statistics. 9:899-907
The main aim of this article is to start with an expository introduction to the trigonometric ratios and then proceed to the latest results in the field. Historically, the exact ratios were obtained using geometric constructions. The geometric method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::819dcb6a7dac4d65fc54ce73bbeef654
https://doi.org/10.13189/ms.2021.090605
https://doi.org/10.13189/ms.2021.090605
Autor:
Sameen Ahmed Khan
Publikováno v:
Resonance. 26:813-827
An introduction to irrational numbers is done using basic trigonometry, generally taught in pre-university courses. The irrational sets of trigonometric ratios of rational angles are discussed in detail along with two major theorems and their proofs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcb14ea719466393e819955efb686198
https://doi.org/10.1007/s12045-021-1181-5
https://doi.org/10.1007/s12045-021-1181-5
Autor:
Sameen Ahmed Khan
Publikováno v:
American Journal of Islam and Society, Vol 33, Iss 1 (2016)
Numerous conferences have been held on themes related to the Islamic golden age of science during the mid-eighth to thirteenth centuries. But the event reported here is the “event of events,” so to say. The United Nations declared 2015 the Intern
Externí odkaz:
https://doaj.org/article/679ab170f780421d83fbc6cfff6ed72b
Publikováno v:
International Journal of Theoretical Physics. 59:2647-2669
The Tsallis $q$-exponential function $e_q(x) = (1+(1-q)x)^{\frac{1}{1-q}}$ is found to be associated with the deformed oscillator defined by the relations $\left[N,a^\dagger\right] = a^\dagger$, $[N,a] = -a$, and $\left[a,a^\dagger\right] = \phi_T(N+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea143f99f022dbb7ac7cb99751900b37
https://doi.org/10.1007/s10773-020-04534-w
https://doi.org/10.1007/s10773-020-04534-w
Autor:
Sameen Ahmed Khan
Publikováno v:
International Journal of Apllied Mathematics. 33
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a7977189f469d396f3b81ec3d66a9e9
https://doi.org/10.12732/ijam.v33i2.6
https://doi.org/10.12732/ijam.v33i2.6
Autor:
Sameen Ahmed Khan
Publikováno v:
Frontiers in Optics / Laser Science.
It is possible to apply quantum methodologies to the matrix-representation of Maxwell’s equations. This results in a unified formalism of light beam optics and light polarization, accompanied with wavelength-dependent contributions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c1d69513edaf773f3a25a911e87b17
https://doi.org/10.1364/fio.2020.jtu1b.39
https://doi.org/10.1364/fio.2020.jtu1b.39