Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Abdelrahman, Zkria"'
Autor:
Satoki Nagano, Hiroshi Naragino, Hiroki Hashiguchi, Shunsuke Hokazono, Lama Osman, Mohamed Ragab Diab, Abdelrahman Zkria, Tsuyoshi Yoshitake
Publikováno v:
Functional Diamond, Vol 4, Iss 1 (2024)
Nitrogen-doped quenched-produced diamond (N-doped Q-dia) thin films were deposited onto a titanium substrate by coaxial arc plasma deposition (CAPD). The N-doped Q-dia thin film was successfully synthesized at room temperature without peeling. Its pe
Externí odkaz:
https://doaj.org/article/06c5fabd48774e45b633708ae16120dc
Autor:
Lengu Peter Tuok, Marwa Elkady, Abdelrahman Zkria, Tsuyoshi Yoshitake, Usama Nour Eldemerdash
Publikováno v:
Micro and Nano Systems Letters, Vol 11, Iss 1, Pp 1-13 (2023)
Abstract Nanofluids for enhanced oil recovery offer a breakthrough solution towards tertiary recovery and consequently higher oil production. Their ability to reduce interfacial tension, alteration of formation’s wettability, higher adsorption capa
Externí odkaz:
https://doaj.org/article/e6d8f1f00a1d48049a1c4da24dc20ad8
Autor:
Eslam Abubakr, Shinya Ohmagari, Abdelrahman Zkria, Hiroshi Ikenoue, Julien Pernot, Tsuyoshi Yoshitake
Publikováno v:
Materials Research Letters, Vol 10, Iss 10, Pp 666-674 (2022)
We report the fabrication of p-n+ diamond homojunction through an innovative approach of laser irradiation in liquid-ambient. A shallow phosphorus-doped layer with a high electric conductivity is processed on top of a p-type diamond substrate to form
Externí odkaz:
https://doaj.org/article/d000384cc95d46418d82516a5c4c3d7d
Autor:
Sreenath Mylo Valappil, Shinya Ohmagari, Abdelrahman Zkria, Phongsaphak Sittimart, Eslam Abubakr, Hiromitsu Kato, Tsuyoshi Yoshitake
Publikováno v:
AIP Advances, Vol 12, Iss 8, Pp 085007-085007-6 (2022)
n-Type (phosphorus-doped) diamond is a promising material for diamond-based electronic devices. However, realizing good ohmic contacts for phosphorus-doped diamonds limits their applications. Thus, the search for non-conventional ohmic contacts has b
Externí odkaz:
https://doaj.org/article/416a543b8d924e6fa6ed3545ccedc528
Publikováno v:
IEEE Access, Vol 9, Pp 896-904 (2021)
Nitrogen-doped ultrananocrystalline diamond/hydrogenated amorphous-carbon (UNCD/a-C:H) composite films, grown on Si substrates by the coaxial arc plasma gun, were investigated using temperature-dependent impedance spectroscopy. The measurements were
Externí odkaz:
https://doaj.org/article/b08448bb95d54bf3b1cba05ab7d9ff84
Publikováno v:
Materials Research Express, Vol 10, Iss 6, p 066401 (2023)
In this study, we report on the novel growth of nanodiamond composite (NDC) films on titanium (Ti) substrates using the coaxial arc plasma deposition (CAPD) at room temperature, which offers several advantages over conventional growth techniques. CAP
Externí odkaz:
https://doaj.org/article/6d9bb182a4344d7593309627a7205086
Publikováno v:
Materials, Vol 15, Iss 23, p 8447 (2022)
Chitosan microcapsules draw attention due to their biodegradability, biocompatibility, antibacterial behavior, low cost, easy processing, and the capability to be used for different applications. This study utilized the electrospraying technique for
Externí odkaz:
https://doaj.org/article/7cc524c2bc3d405c86cb9f0b681416da
Autor:
Abiodun Odusanya, Imteaz Rahaman, Pallab Kumar Sarkar, Abdelrahman Zkria, Kartik Ghosh, Ariful Haque
Publikováno v:
C, Vol 8, Iss 2, p 24 (2022)
Carbon-based materials (CBMs) such as graphene, carbon nanotubes (CNT), highly ordered pyrolytic graphite (HOPG), and pyrolytic carbon (PyC) have received a great deal of attention in recent years due to their unique electronic, optical, thermal, and
Externí odkaz:
https://doaj.org/article/e771e916ffad438e9cee4e41267def36
Autor:
Abdelrahman Zkria, Hiroki Gima, Eslam Abubakr, Ashraf Mahmoud, Ariful Haque, Tsuyoshi Yoshitake
Publikováno v:
Nanomaterials, Vol 12, Iss 5, p 854 (2022)
Diamond is one of the fascinating films appropriate for optoelectronic applications due to its wide bandgap (5.45 eV), high thermal conductivity (3320 W m−1·K−1), and strong chemical stability. In this report, we synthesized a type of diamond fi
Externí odkaz:
https://doaj.org/article/f67fd9af9e3f4273a7a7a8df06742f70
Publikováno v:
Polymers, Vol 14, Iss 4, p 709 (2022)
Owing to bio-polymer’s low-cost, environmental friendliness and mechanically stable nature, calcium alginate microcapsules have attracted much interest for their applications in numerous fields. Among the common production methods, the Electrospray
Externí odkaz:
https://doaj.org/article/0b6b8178da5d414290424bd14b74b3d0