Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Emad M Ahmed"'
Publikováno v:
Materials Research Express, Vol 9, Iss 1, p 016301 (2022)
The paper addresses a novel approach concerning the appearance of negative series resistance (R _s ) at high frequencies for both temperatures and voltages. Most of the previous studies have focused on the relationship between voltage and current (I
Externí odkaz:
https://doaj.org/article/83cdb0d9651e4c90a0b39ed4aafad74f
Autor:
Emad M Ahmed, Ali A Alkathiri
Publikováno v:
Materials Research Express, Vol 9, Iss 5, p 055305 (2022)
Cerium oxide nanoparticles (CeO _2 NPs) of different ratios ( x = 5, 10, 15, and 20 in wt %) are successfully incorporated into chitosan (CS) to synthesize CeO _2 NPs/CS nanocomposites by solution cast method. FTIR and XRD analysis confirmed the effe
Externí odkaz:
https://doaj.org/article/4557a8547fe146cbabcc8462b44c6620
Publikováno v:
Materials Research Express, Vol 8, Iss 7, p 075003 (2021)
The paper presents a new approach based on the appearance of negative capacitance (NC) at high and low frequencies; previously, researchers agreed that NC only occurred at high or low frequencies. For the first time, we synthesized Au/polypyrrole/MWC
Externí odkaz:
https://doaj.org/article/6413da2af01941a595eac4d3de9917f5
Autor:
Hafiz T Ali, Abdulaziz H Alghtani, Bassem F Felemban, Kh Abd El-Aziz, D Saber, Emad M Ahmed, M Megahed, Mohamad Fotouhi
Publikováno v:
Materials Research Express, Vol 8, Iss 9, p 095504 (2021)
There is a rising demand for advanced new materials in food packaging to meet the growing economic and sustainability requirements. Natural fibers have excellent mechanical and thermal isolation properties and lower production costs than synthetic fi
Externí odkaz:
https://doaj.org/article/f4061c2891cf46a1ba6e3d4f796b48c0
Autor:
Emad M Ahmed, D Saber, Kh Abd ElAziz, Abdulaziz H Alghtani, Bassem F Felemban, Hafiz T Ali, M Megahed
Publikováno v:
Materials Research Express, Vol 8, Iss 2, p 025017 (2021)
In the present work, Cerium (IV)-Zirconium (IV) oxide nanoparticles (CeO _4 ZrNPs) was successfully dispersed into Chitosan/15Gelatin nanocomposites with different quantities. The obtained chitosan-based nanocomposites represented remarkable improvem
Externí odkaz:
https://doaj.org/article/56d09cfeaea74e48899b1a1e4494f39c
Autor:
Altaf Hussain Rajpar, Mohamed Bashir Ali Bashir, Ethar Yahya Salih, Emad M. Ahmed, A.M. Soliman
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 102907- (2024)
Exploring substantial solar irradiation and recuperating excess heat generated during photovoltaic energy conversion is a critical issue. The efficiency of photovoltaic systems (PV) is significantly depend on the increased operating temperatures enco
Externí odkaz:
https://doaj.org/article/0769bd98e34747188481b75cbd46ca02
Publikováno v:
IEEE Access, Vol 12, Pp 175304-175327 (2024)
Modern electrical power grids are characterized by a significant increase in renewable energy generation, often complemented by energy storage systems. Integrating these storage devices helps to offset the challenges posed by the decreased system ine
Externí odkaz:
https://doaj.org/article/00bd0b00a0fa4c8c95c061b3ca7a501b
Publikováno v:
IET Renewable Power Generation, Vol 16, Iss 16, Pp 3587-3613 (2022)
Abstract The recent environmental crisis and global warming have compelled an energy transition, particularly in the power generation and transportation sectors. Increased energy competence and production will necessitate enormous efforts. Admittedly
Externí odkaz:
https://doaj.org/article/7c1fd142958d4abe835c40baff4e2778
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 911-928 (2022)
The inverter becomes an essential part in the distributed energy units, where an inductor–capacitor–inductor (LCL) filter is an up-to-date adoption for grid interfacing. However, the challenging issue of resonance related to the LCL-filter worsen
Externí odkaz:
https://doaj.org/article/51889097d43b49cda837efbf597f3e77
Autor:
Hesham M.H. Zakaly, H.O. Tekin, Ghada ALMisned, Emad M. Ahmed, Shams A.M. Issa, Antoaneta Ene, Y.S. Rammah
Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 5062-5074 (2022)
The mechanical properties and radiation attenuation competence of Tb3+ ions doped boro-germanate-aluminiophosphate (BGAP) glasses with codes Tb15, Tb20, Tb25, Tb30, Tb35, and Tb40 have been investigated. Bond compression model (B–C) and Phy-X/PSD s
Externí odkaz:
https://doaj.org/article/17e5803997144f7ab224336e0db7b77b