Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ehab A. El-sayed"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract The control and management of energy and their associated issues are increasingly recognized as one of mankind’s greatest challenges in the coming years to keep pace with the surge in industrialization and technology. Free convection optim
Externí odkaz:
https://doaj.org/article/06924ceca23e438d8f780debe2e30425
Autor:
Ehab Issa El-sayed, Mohamed Mohamed Al-Gazzar, Mohammed Shehata Seif, Ahmed Mohamed Attia Soliman
The best solution to exploit renewable energy sources (RES) together is by using the application of microgrid (MG). This indeterminate of resources such as solar panels, wind farm, diesel generator, and battery storage system paired with load profile
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6069c74ec74d3f115bb28e7d4496e617
https://zenodo.org/record/6618510
https://zenodo.org/record/6618510
Autor:
Mohamed A. Ramadan, Ehab A. El - Sayed
Publikováno v:
Acta Montanistica Slovaca, Vol 11, Iss 1, Pp 16-25 (2006)
The partial eigenvalue assignment is the problem of reassigning a part of the open-loop spectrum of a linear system by a feedback control, leaving the rest of the spectrum invariant. In the paper, we propose a novel solution to the partial eigenvalue
Externí odkaz:
https://doaj.org/article/2cc806a4c0e2438a8dc66be905e30e2f
Autor:
H.M. Kamel, Diab El Sayed, Esam Desoky, Emad A. Salem, Ahmed Eliwa, Waleed Shabana, Mostafa Kamel, Ahmed Sakr, Ehab R. El Sayed, A.M. Fawzi, Asharf M.S. Shahin
Publikováno v:
Arab Journal of Urology
Arab Journal of Urology, Vol 15, Iss 1, Pp 30-35 (2017)
Arab Journal of Urology, Vol 15, Iss 1, Pp 30-35 (2017)
Objective: To evaluate the efficacy and safety of immediate versus delayed shockwave lithotripsy (SWL) for inaccessible stones after uncomplicated percutaneous nephrolithotomy (PCNL). Patients and methods: Between December 2011 and June 2014, patient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1298073753b87ab1f89ffd9d0e6a58e
https://doi.org/10.1016/j.aju.2016.11.002
https://doi.org/10.1016/j.aju.2016.11.002
Autor:
Eid E. El Behady, Ehab A. El-Sayed
Publikováno v:
American Journal of Applied Sciences. 13:1006-1013
This paper introduces a solution to the partial eigenvalues assignment problem of high order linear systems with time delayed system in both single-input and multi-input cases using orthogonality relations between eigenvectors of the matrix polynomia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcacd6b36e61598b878b3cd06d7408aa
https://doi.org/10.3844/ajassp.2016.1006.1013
https://doi.org/10.3844/ajassp.2016.1006.1013
Autor:
Ehab A. El-Sayed, Saudi Arabia
Publikováno v:
IJARCCE. :298-304
In this paper, the computerized controller for studying load shedding has been designed and implemented. This controller is designed based on the problem of minimizing load shedding during emergency conditions. The studied problem is formulated as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7c145b5492cf370a1fde022e1542a1
https://doi.org/10.17148/ijarcce.2015.4371
https://doi.org/10.17148/ijarcce.2015.4371
Autor:
Mohamed A. Ramadan, Ehab A. El-Sayed
Publikováno v:
Journal of Vibration and Control. 19:367-375
The problem of reassigning a part of the open-loop spectrum of a linear system by feedback control, leaving the rest of the spectrum invariant, is called the partial eigenvalue assignment problem. In this paper, a projection method based on a direct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fba1a8d809a7abab16e1646419485aa
https://doi.org/10.1177/1077546311431998
https://doi.org/10.1177/1077546311431998
Autor:
Mohamed A. Ramadan, Ehab A. El-Sayed
Publikováno v:
Journal of Vibration and Control. 17:1851-1861
In this paper we propose a simple recursive algorithm to assign eigenvalues real or mixed (real and complex) in a Hessenberg matrix. This problem of assigning eigenvalues in a Hessenberg matrix is considered by many authors. Among these methods is th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f9256579d6904165d1d68195cdbca33
https://doi.org/10.1177/1077546310382807
https://doi.org/10.1177/1077546310382807
Autor:
Ehab A. El-Sayed, Mohamed A. Ramadan
Publikováno v:
Computers & Mathematics with Applications. 59:1918-1928
In this paper, we present an explicit solution to the partial eigenvalue assignment problem of high order control system using orthogonality relations between eigenvectors of the matrix polynomial. Our solution can be implemented with only a partial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d2b9104af2124b16df92cabced1be7f
https://doi.org/10.1016/j.camwa.2009.07.063
https://doi.org/10.1016/j.camwa.2009.07.063
Autor:
Mohamed A. Ramadan, Ehab A. El-Sayed
Publikováno v:
Applied Mathematics and Computation. 186:844-859
In this paper, a simple method for generating a nonsingular solution of the matrix equation XH = HX where the matrix H is in unreduced lower Hessenberg form is proposed. The controllability of the matrix pair ( H , b ) where b is the last column vect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baf9b076856cd7632a0575cb303f9259
https://doi.org/10.1016/j.amc.2006.08.063
https://doi.org/10.1016/j.amc.2006.08.063