Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Mohammed A Alresheedi"'
Publikováno v:
Photonics, Vol 11, Iss 10, p 934 (2024)
This study examines the physical-layer security of an indoor visible light communication (VLC) system using spatial modulation (SM), which consists of several transmitters, an authorized receiver, and a passive adversary. The SM technique is applied
Externí odkaz:
https://doaj.org/article/223a130e01064a8c8228ed0d256fbd48
Autor:
Norita Mohd Yusoff, Mahmoud Hazzaa Mohamed Ahmed, Eng Khoon Ng, Mohammed Thamer Alresheedi, Mohd Zul Hilmi Mayzan, Mohd Adzir Mahdi
Publikováno v:
Results in Physics, Vol 52, Iss , Pp 106843- (2023)
This work presents a tapered fiber decorated with bulk α-alumina with 4.08% modulation depth and 21.67 MW/cm2 saturation intensity which was responsible to induce noise-like pulse (NLP) in an “eye-safe” wavelength region. The light-matter intera
Externí odkaz:
https://doaj.org/article/219f51ba373a4d399761defa33626ec8
Autor:
Zaed S. A. Abdulwali, Ali H. Alqahtani, Yosef T. Aladadi, Majeed A. S. Alkanhal, Yahya M. Al-Moliki, Khaled Aljaloud, Mohammed Thamer Alresheedi
Publikováno v:
Micromachines, Vol 14, Iss 12, p 2181 (2023)
This paper presents a miniaturized broadband Bi-Yagi antenna array that covers a bandwidth from 1.79 GHz to 2.56 GHz. The proposed antenna achieves a tradeoff between maximizing bandwidth, effective area, and gain while minimizing physical dimensions
Externí odkaz:
https://doaj.org/article/2056932e90a047a2ad4d14553d5e5558
Autor:
Zaed S. A. Abdulwali, Ali H. Alqahtani, Yosef T. Aladadi, Majeed A. S. Alkanhal, Yahya M. Al-Moliki, Khaled Aljaloud, Mohammed Thamer Alresheedi
Publikováno v:
Sensors, Vol 23, Iss 18, p 7725 (2023)
This paper presents a novel circularly polarized rectenna designed for efficient electromagnetic energy harvesting at the 2.45 GHz ISM band. A compact antenna structure is designed to achieve high performance in terms of radiation efficiency, axial r
Externí odkaz:
https://doaj.org/article/cc90f11debf64556baaf19e8d34bca8f
Autor:
Yasmin Mustapha Kamil, Sura Hmoud Al-Rekabi, Muhammad Hafiz Abu Bakar, Yap Wing Fen, Husam Abduldaem Mohammed, Nor Hafizah Mohamed Halip, Mohammed Thamer Alresheedi, Mohd Adzir Mahdi
Publikováno v:
Photonic Sensors, Vol 12, Iss 3, Pp 1-8 (2022)
Abstract The lethality of inorganic arsenic (As) and the threat it poses have made the development of efficient As detection systems a vital necessity. This research work demonstrates a sensing layer made of hydrous ferric oxide (Fe2H2O4) to detect A
Externí odkaz:
https://doaj.org/article/f97ac4d238a140e5a616a3e4e698744a
Autor:
Farah Diana Muhammad, Josephine Liew Ying Chyi, Anom Nazirah Mohd Asran, Mohammed Thamer Alresheedi, Eng Khoon Ng, Mohd Adzir Mahdi
Publikováno v:
Photonics, Vol 10, Iss 9, p 995 (2023)
We demonstrate the utilization of iron oxide (Fe2O3) as light-absorbing material in an erbium-doped fiber laser (EDFL) for the generation of Q-switched pulses. A sandwich-type saturable absorber (SA) with Fe2O3 nanoparticles between fiber ferrules is
Externí odkaz:
https://doaj.org/article/9feaa3c81e464ddbacd991432029a47b
Autor:
Airull Azizi Awang Lah, Abdul Hadi Sulaiman, Fairuz Abdullah, Sumiaty Ambran, Eng Khoon Ng, Mohammed Thamer Alresheedi, Mohd Adzir Mahdi, Nelidya Md Yusoff
Publikováno v:
Photonics, Vol 10, Iss 8, p 924 (2023)
We demonstrate a generation of three lasing wavelengths with the assistance of Rayleigh backscattering as the stabilizer of peak power variations. The proposed laser consists of a combination of the semiconductor optical amplifier (SOA) and erbium-do
Externí odkaz:
https://doaj.org/article/31c8ea7b4d884c65a79d0179de4b8ef9
Autor:
Mohammed T. Alresheedi, Mohamed Elsafi
Publikováno v:
Crystals, Vol 13, Iss 8, p 1168 (2023)
In the present work, photon and neutron attenuation properties of polyepoxide composites produced by doping waste iron filings (IF) at different percentages (0%, 20%, 40%, and 60% iron filing percentage) were obtained using theoretical and experiment
Externí odkaz:
https://doaj.org/article/a8cd9f941b8c43959483e27e52c2327b
Autor:
Mohammed Thamer Alresheedi, Mohamed Elsafi, Yosef T. Aladadi, Ahmad Fauzi Abas, Abdullrahman Bin Ganam, M. I. Sayyed, Mohd Adzir Mahdi
Publikováno v:
Polymers, Vol 15, Iss 9, p 2160 (2023)
This study aimed to prepare silicone rubber composites with heavy metal oxide nanoparticles for gamma ray shielding applications. Different heavy metal oxide nanoparticles were incorporated into the silicone rubber matrix, and the prepared composites
Externí odkaz:
https://doaj.org/article/c21ba1e302644fffad50a49a9bfc3b64
Autor:
Mohammed Thamer Alresheedi, Mohamed Elsafi, Yosef T. Aladadi, Ahmad Fauzi Abas, Abdullrahman Bin Ganam, M. I. Sayyed, Mohd Adzir Mahdi
Publikováno v:
Materials, Vol 16, Iss 8, p 3255 (2023)
This study aimed to develop a mortar composite with improved gamma ray shielding properties using WO3 and Bi2O3 nanoparticles, as well as granite residue as a partial replacement of sand. The physical properties and effects of sand substitution and n
Externí odkaz:
https://doaj.org/article/f3bbf06209df404d850e223a401ed8f6