Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Raad SA"'
Autor:
Hayder Maki Hamodi, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 27, Iss 2 (2024)
A high-performance Mach-Zehnder interferometer (MZI) based all-optical switch using graphene on silicon nitride (Si3N4) is proposed and simulated. Graphene absorbs pump power (λ = 980 nm) on Si3N4 waveguide, generating heat. The heat affects the Si3
Externí odkaz:
https://doaj.org/article/79376804f0474646a788885831d061ee
Autor:
Arwa A. Moosa, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 27, Iss 1 (2024)
This paper discusses the development of a seven-band coherent wavelength-division multiplexing (WDM) system covering the T to U systems, aiming to enhance the capacity and system efficiency. Seven multiband systems (C+L, S+C+L, S+C+L+U, E+S+C+L, E+S+
Externí odkaz:
https://doaj.org/article/add7e1edf62d46e4ad7623644b5b17ed
Autor:
Ayam M. Abbass, Raad Sami Fyath
Publikováno v:
Results in Optics, Vol 15, Iss , Pp 100629- (2024)
Geometric constellation shaping (GCS) has been proposed to enhance the performance of wavelength-division multiplexing (WDM) coherent optical fiber communication (OFC) systems. This paper presents a comprehensive simulation platform to design and sim
Externí odkaz:
https://doaj.org/article/fa766992919948d4a60eb8391b5e9610
Publikováno v:
Al-Iraqia Journal for Scientific Engineering Research, Vol 2, Iss 1 (2023)
Image security has attracted increasing interest, wherein image encryption is an effective and direct method that can be implemented using digital, optical, or hybrid techniques. The challenge is how to design a high-speed, and high-security level mu
Externí odkaz:
https://doaj.org/article/4b1a414c669e4d419f3bc70cb373319b
Autor:
Arwa Moosa, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 26, Iss 1 (2023)
Recently, there is increasing interest in using the 18 THz bandwidth offered by S+C+L band to increase the transmission capacity of fiber communication systems. This leads to the generation of ultra-wideband (UWB) wavelength-division multiplexing (WD
Externí odkaz:
https://doaj.org/article/1360a1aeb40749c791a9c2f02bbcefd0
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 26, Iss 1 (2023)
The fifth generation (5G) and beyond mobile networks support increasing number of users with increasing bit rate per users. This has encouraged researchers to propose coherent digital subcarrier multiplexing (SCM) point-to-multipoint (P2MP) architect
Externí odkaz:
https://doaj.org/article/48a7eaa2cd87447c9c29202421ca7e85
Publikováno v:
Sulaimani Journal for Engineering Sciences, Vol 7, Iss 3, Pp 42-64 (2020)
The call for post disaster reconstruction may look very elementary and naive, but the question is regarding, the common agreement on procedure priorities of this reconstruction, availability of sufficient premises, sharing and gathering of the availa
Externí odkaz:
https://doaj.org/article/c6c9452bdae74ccc9c255ef287cd8620
Autor:
Raad Salih Jawad, Hafedh Abid
Publikováno v:
Energies, Vol 16, Iss 3, p 1064 (2023)
Unlike the more prevalent alternating current transmission systems, the high voltage direct current (HVDC) electric power transmission system transmits electric power using direct current. In order to investigate the precise remedy for fault detectio
Externí odkaz:
https://doaj.org/article/909d00abd3f74d469f9a44178b31d35e
Autor:
Raad Salih Jawad, Hafedh Abid
Publikováno v:
Energies, Vol 15, Iss 20, p 7775 (2022)
Various methods have been proposed to provide the protection necessitated by the high voltage direct current system. In this field, most of the research is confined to various types of DC and AC line faults and a maximum of two switching converter fa
Externí odkaz:
https://doaj.org/article/87a031a3397a43a7a70d2bfcba6dd8db
Autor:
Raad Saad Luty, Adil Ghalib Fadil, Jasim Mohammed Najm, Hala Haitham Abduljabbar, Sarmad Abdul Abbas Kashmar
Publikováno v:
Iranian Journal of Microbiology, Vol 12, Iss 5 (2020)
Background and Objectives: Urinary tract infection (UTI) is a common infection affects people of different ages. It is important to explore the antibiotics susceptibility of the bacterial agents to improve the empirical antibacterial prescription bec
Externí odkaz:
https://doaj.org/article/68987da62e4e4ce49813d6e83c3cadab