Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Yosry A. Azzam"'
Publikováno v:
Scientific African, Vol 20, Iss , Pp e01696- (2023)
Over the last few decades, artificial neural networks (ANN) have played an essential role in many areas of human activity and have found application in many branches of natural sciences. ANNs have been widely used to tackle problems related to linear
Externí odkaz:
https://doaj.org/article/f292ecef2f0a4ec2bbe2ac6cbced8afa
Publikováno v:
Advances in Astronomy, Vol 2021 (2021)
The helium burning phase represents the second stage that the star used to consume nuclear fuel in its interior. In this stage, the three elements, carbon, oxygen, and neon, are synthesized. The present paper is twofold: firstly, it develops an analy
Externí odkaz:
https://doaj.org/article/8bd51de017b944e5999f250202f02d95
Autor:
Ali Takey, Gamal B. Ali, Y. H. M. Hendy, Farag I. Y. Elnagahy, H. A. Ismail, G. M. Hamed, Yosry A. Azzam, Michitoshi Yoshida, A. Essam, Peter Mack, S. M. Saad, A. Shokry, Nasser M. Ahmed, Hiroshi Akitaya, I. Zead, Koji S. Kawabata
Publikováno v:
Experimental Astronomy
In this paper we describe the Kottamia Faint Imaging Spectro-Polarimeter (KFISP) that has been recently developed and designed to be mounted at the Cassegrain focus of the 1.88 m telescope at Kottamia Astronomical Observatory (KAO), Egypt. The optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12b27b7d4c8d55588fa657e447766fab
https://doi.org/10.1007/s10686-021-09802-z
https://doi.org/10.1007/s10686-021-09802-z
Publikováno v:
Revista Mexicana de Astronomía y Astrofísica. 57:189-198
The isothermal gas sphere is a particular type of Lane-Emden equation and is used widely to model many problems in astrophysics like stars, star clusters, and the formation of galaxies. In this paper, we present a computational scheme to simulate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6abe17e9790473027bd888f949d4b5
https://doi.org/10.22201/ia.01851101p.2021.57.01.14
https://doi.org/10.22201/ia.01851101p.2021.57.01.14
Publikováno v:
NRIAG Journal of Astronomy and Geophysics. 10:23-34
Innovation in the ground and space-based instruments has taken us into a new age of spectroscopy, in which a large amount of stellar content is becoming available. So, automatic classification of s...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46e2d96bb01a96c453c334cef078cd6a
https://doi.org/10.1080/20909977.2020.1853012
https://doi.org/10.1080/20909977.2020.1853012
Publikováno v:
Advances in Astronomy, Vol 2021 (2021)
The helium burning phase represents the second stage that the star used to consume nuclear fuel in its interior. In this stage, the three elements, carbon, oxygen, and neon, are synthesized. The present paper is twofold: firstly, it develops an analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::507187cfc3adaf84681bfe97b1f6f743
Autor:
Mona Molham, Ali Takey, Yosry A. Azzam, H. A. Ismail, A. Osman, A. Shokry, M. A. Hamdy, Michitoshi Yoshida, Hiroshi Akitaya, Ola Ali, I. Zead, Mohamed Abdel-Sabour, S. M. Saad, Y. H. M. Hendy, Mohammed S. Abo-Elala, A. A. Haroon, Gamal B. Ali, Mohamed S. Darwish, A. Essam, Issa Ali Issa, Islam Helmy, Nasser M. Ahmed, Koji S. Kawabata, Farag I. Y. Elnagahy, Nohamed Ismail, Ahmed M. Fouad, Peter Mack, Doaa Elsayed
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
We describe the Kottamia Faint Imaging Spectro-Polarimeter (KFISP) that has been recently developed and designed to be mounted to the Cassegrain focus of the 1.88m telescope at Kottamia Astronomical Observatory (KAO), Egypt. The optical design of KFI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fca71d5799621f49144e0f5de4f78cfc
https://doi.org/10.1117/12.2561664
https://doi.org/10.1117/12.2561664
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
The Kottamia Faint Imaging Spectro-Polarimeter (KFISP) has been recently developed, commissioned and mounted to the Cassegrain focus of the 1.88m telescope at Kottamia astronomical observatory, Egypt. The KFISP instrument demagnified the Kottamia 1.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aa4ae19c60d6eb709fac3162400e73b
https://doi.org/10.1117/12.2561665
https://doi.org/10.1117/12.2561665
Lane-Emden differential equations describe different physical and astrophysical phenomena that include forms of stellar structure, isothermal gas spheres, gas spherical cloud thermal history, and thermionic currents. This paper presents a computation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60e1a6d1ceb2364df341158bedcd57f3
Autor:
Yosry A. Azzam, I. M. Selim
Publikováno v:
2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE).
Wind power is the energy generated through the flow of air on the wind turbines and convert their mechanical power into electrical power. Wind energy is a plentiful renewable energy source and is widely distributed with low cost of electricity genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eeae3cd1e87cb8082e14a30420c28ab
https://doi.org/10.1109/cpere45374.2019.8980224
https://doi.org/10.1109/cpere45374.2019.8980224