Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ahmad, A. Khamis"'
Autor:
Ebenezer Ekow Mensah, Zulkifly Abbas, Raba'ah Syahidah Azis, Nor Azowa Ibrahim, Ahmad Mamoun Khamis, Daw Mohammad Abdalhadi
Publikováno v:
Heliyon, Vol 6, Iss 12, Pp e05595- (2020)
The development of microwave absorbing materials based on recycled hematite (α-Fe2O3) nanoparticles and polycaprolactone (PCL) was the main focus of this study. α-Fe2O3 was recycled from mill scale and reduced to nanoparticles through high energy b
Externí odkaz:
https://doaj.org/article/904fd38cade343d1b8801ec124aba1c1
Autor:
Ahmad Mamoun Khamis, Zulkifly Abbas, Raba'ah Syahidah Azis, Ebenezer Ekow Mensah, Ibrahim Abubakar Alhaji
Publikováno v:
Polymer Engineering & Science. 62:3577-3588
Autor:
Ahmad Mamoun Khamis, Zulkifly Abbas, Raba’ah Syahidah Azis, Ebenezer Ekow Mensah, Ibrahim Abubakar Alhaji
Publikováno v:
Polymers, Vol 13, Iss 14, p 2332 (2021)
The purpose of this study was to improve the dielectric, magnetic, and thermal properties of polytetrafluoroethylene (PTFE) composites using recycled Fe2O3 (rFe2O3) nanofiller. Hematite (Fe2O3) was recycled from mill scale waste and the particle size
Externí odkaz:
https://doaj.org/article/9bb529d2b2e547419d008403ce819a4e
Publikováno v:
Polymers, Vol 13, Iss 15, p 2449 (2021)
Low dielectric loss and low-cost recycled borosilicate (BRS) glass-reinforced polytetrafluoroethylene (PTFE) composites were fabricated for microwave substrate applications. The composites were prepared through a dry powder processing technique by di
Externí odkaz:
https://doaj.org/article/ec3c8fae5e274f41a7804156d732d5e4
Publikováno v:
Materials Express. 12:319-326
This study was aimed at investigating the effect of microstructural variations on relative complex permittivity and microwave absorption properties of recycled α-Fe2O3, following application of high-energy ball milling technique to modify particles
Autor:
Ahmad Fahad Ahmad, Sidek Hj Ab Aziz, Zulkifly Abbas, Daw Mohammad Abdalhadi, Ahmad Mamoun Khamis, Umar Sa’ad Aliyu
Publikováno v:
Polymers, Vol 12, Iss 9, p 1919 (2020)
This article describes attenuation and absorption measurements using the microstrip transmission line technique connected with a microwave vector network analyzer (Agilent 8750B). The magnitudes of the reflection (S11) and transmission (S21) coeffici
Externí odkaz:
https://doaj.org/article/5372bf9f80ae44108f3995928c955da6
Publikováno v:
Egyptian Journal of Chest Disease and Tuberculosis, Vol 63, Iss 4, Pp 1035-1038 (2014)
Background: Plasma levels of brain natriuretic peptide (BNP) correlate closely with the pressure and mural tension of the right ventricle and with pulmonary arterial pressure. The relationship between brain natriuretic peptide increase in acute pulmo
Externí odkaz:
https://doaj.org/article/9a7f4195517342ca827e4b755f80d529
Autor:
Ebenezer Ekow Mensah, Zulkifly Abbas, Raba’ah Syahidah Azis, Nor Azowa Ibrahim, Ahmad Mamoun Khamis
Publikováno v:
Polymers, Vol 11, Iss 5, p 918 (2019)
Recycled hematite (α-Fe2O3) nanoparticles with enhanced complex permittivity properties have been incorporated as a filler in a polycaprolactone (PCL) matrix reinforced with oil palm empty fruit bunch (OPEFB) fiber for microwave absorption applicati
Externí odkaz:
https://doaj.org/article/1912d43a69504912892b36fc0f6855fa
Publikováno v:
Materials, Vol 12, Iss 10, p 1696 (2019)
The purpose of this study was to synthesize high-quality recycled α-Fe2O3 to improve its complex permittivity properties by reducing the particles to nanosize through high energy ball milling. Complex permittivity and permeability characterizations
Externí odkaz:
https://doaj.org/article/1965df7e95264492aa835fe05f70fbdd
Autor:
Daw Mohammad Abdalhadi, Raba’ah Syahidah Azis, Ahmad Mamoun Khamis, Ebenezer Ekow Mensah, Zulkifly Abbas, Ahmad Fahad Ahmad
Publikováno v:
IET Microwaves, Antennas & Propagation. 14:752-758
Epoxy resin (ER) composites reinforced with micro-sized oil palm empty fruit bunch (OPEFB) were fabricated to improve the biodegradability of electromagnetic interference connector gasket. The dielectric properties, transmission coefficient |S 21|, r