Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Ramzi Othman"'
Autor:
Nurrohman Nurrohman, Hind Almisbahi, Elena Tocci, Hani Abulkhair, Mohammed Albeirutty, Ramzi Othman, Omar Bamaga
Publikováno v:
Nanomaterials, Vol 14, Iss 13, p 1137 (2024)
The condensation of water vapor plays a crucial role in various applications, including combating water scarcity. In this study, by employing molecular dynamics simulations, we delved into the impact of graphene coatings on water vapor condensation o
Externí odkaz:
https://doaj.org/article/10dc752d92af4e8fbbd81ce6c03f44bb
Autor:
Ammar Melaibari, Ahmed Amine Daikh, Muhammad Basha, Ahmed W. Abdalla, Ramzi Othman, Khalid H. Almitani, Mostafa A. Hamed, Alaa Abdelrahman, Mohamed A. Eltaher
Publikováno v:
Mathematics, Vol 10, Iss 4, p 583 (2022)
This article presents a mathematical continuum model to analyze the free vibration response of cross-ply carbon-nanotube-reinforced composite laminated nanoplates and nanoshells, including microstructure and length scale effects. Different shell geom
Externí odkaz:
https://doaj.org/article/09878117ba7744fb970f8425cab7823e
Autor:
Ammar Melaibari, Ahmed Amine Daikh, Muhammad Basha, Ahmed Wagih, Ramzi Othman, Khalid H. Almitani, Mostafa A. Hamed, Alaa Abdelrahman, Mohamed A. Eltaher
Publikováno v:
Mathematics, Vol 10, Iss 3, p 408 (2022)
The present study demonstrates the free vibration behavior of composite laminated shells reinforced by both randomly oriented single-walled carbon nanotubes (SWCNTs) and functionally graded fibers. The shell structures with different principal radii
Externí odkaz:
https://doaj.org/article/7749a6d0e9af4ba48477eba21bbb8508
Autor:
Abdullah A. Al-Juaid, Ramzi Othman
Publikováno v:
Journal of Engineering, Vol 2016 (2016)
The main focus of this paper is in evaluating four constitutive relations which model the strain rate dependency of polymers yield stress. Namely, the two-term power-law, the Ree-Eyring, the cooperative, and the newly modified-Eyring equations are us
Externí odkaz:
https://doaj.org/article/fa57605aaef64b77857b8a1876061666
Autor:
Ammar A. Al Salahi, Ramzi Othman
Publikováno v:
Journal of Engineering, Vol 2016 (2016)
Several constitutive equations have proposed to model the strain rate sensitivity of metals to strain rate. This paper presents a comparative of six equations reported in the open literature. All equations are used to fit the yield stress of three co
Externí odkaz:
https://doaj.org/article/e2c0a96544bb47d69897feab178212dc
Autor:
Ramzi Othman
Publikováno v:
Advances in Materials Science and Engineering, Vol 2015 (2015)
In several industrial applications, metallic structures are facing impact loads. Therefore, there is an important need for developing constitutive equations which take into account the strain rate sensitivity of their mechanical properties. The Johns
Externí odkaz:
https://doaj.org/article/1cae965ca9004cf8b38a39b729abcbae
Autor:
Zakaria El-Qoubaa, Ramzi Othman
Publikováno v:
International Journal of Polymer Science, Vol 2015 (2015)
Polyetheretherketone (PEEK) is used in several engineering applications where it has to bear impact loads. Nevertheless, the tensile behavior has only been studied in the quasi-static range of loading rates. To address the lack of data in the impact
Externí odkaz:
https://doaj.org/article/aec4d147e50e4ace9f8cfc49c093a5c4
Autor:
Shwan Othman Amen, Banan Qasim Rasool, MD. Alaa Mohammed Rashid, Sara Shwan Shakir, Aya nasih Mohammad, Ziad R Affas, MD. Gazang Noori Abdullah, Maryam Ramzi Othman, Ibrahim Mohamad Chaheen, Vinwar Hameed Abdullah, Heleen Araz Hussein, Kosar Zeyad Rashad, Bareq S. Al-Lami, Rawen Hemin Akram, Baran Karwan Sulaiman, Kares Abduljabbar Nooraddin, Don Eliseo Lucero- Prisno III
Publikováno v:
Saudi Journal of Medicine. 7:444-450
Background: White coat hypertension (WCH) is a condition in which people exhibit an elevation in blood pressure (BP) in a clinical setting, although they do not show such elevation in other settings. This study aims to provide new insight into determ
Publikováno v:
Mediterranean Journal of Sport Science (MJSS); 2023 Special Issue, Vol. 6, p1213-1226, 14p
Publikováno v:
European Journal of Engineering and Technology Research. 6:154-158
Adhesives are used for attaching structures to various spacers such as tubular and scarf joints to replace the traditional joining methods of welding, brazing, soldering, etc. Many of the unique features associated with adhesives are low manufacturin