Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Mohamed E Ibrahim"'
Autor:
Mohamed E. Ibrahim, Samy M. El‐Behiry, A. A. Hussien, Mohamed A. Izzularab, Amr M. Abd‐Elhady
Publikováno v:
IET Generation, Transmission & Distribution, Vol 15, Iss 2, Pp 339-346 (2021)
Abstract Effect of adding nanofillers on transformer oil breakdown voltage and its thermal performance finds a great interest from researchers and scientists. The impact of oil circulation considering oil forced cooling method on nanoparticles stabil
Externí odkaz:
https://doaj.org/article/5631a31c0ffa4b1794da16e3a9288ab2
Publikováno v:
Bulletin of the National Research Centre, Vol 44, Iss 1, Pp 1-7 (2020)
Abstract Background This study focused on the comparison of the essential oil percentage and constituents obtained from the dry seeds and the waste of coriander plant in order to reach the best ways to store the essential oil. Results The chemical co
Externí odkaz:
https://doaj.org/article/3f61573ec4a644bdb9c18dd1f683e5f3
Publikováno v:
IEEE Access, Vol 8, Pp 227222-227231 (2020)
Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids i
Externí odkaz:
https://doaj.org/article/0fac73a96a08406591146bb14b921ae8
Autor:
Mohamed S. Elrefaey, Mohamed E. Ibrahim, Elsayed Tag Eldin, Hossam Youssef Hegazy, Elwy E. El-Kholy, Samia Abdalfatah
Publikováno v:
Energies, Vol 16, Iss 1, p 216 (2022)
This paper presents an improved topology for a DC–DC converter suitable for PV applications. The proposed converter has the ability to be energized from multiple DC sources. Hence, it can be energized from two, three or a higher number of sources a
Externí odkaz:
https://doaj.org/article/373b341a4c964158a2e836ae0e8ce1cd
Publikováno v:
Annals of Agricultural Sciences, Vol 64, Iss 1, Pp 89-94 (2019)
In this study the essential oils were extracted from the peels of Citrus sinensis (sweet orange), Citrus aurantium (bitter orange) and Citrus reticulata (mandarins) by hydrodistillation using a Clevenger- type apparatus for 4 h. The essential oils of
Externí odkaz:
https://doaj.org/article/dac020b251024e2ab5dc5c73b361144d
Publikováno v:
The Egyptian Journal of Internal Medicine, Vol 31, Iss 2, Pp 214-221 (2019)
Background Hepatocellular carcinoma (HCC) is the fifth most frequently diagnosed cancer worldwide. Early recognition of the onset of HCC would help to select more effective therapies for patients leading to a better prognosis and life span. So, the d
Externí odkaz:
https://doaj.org/article/6450b6da644a420b940999b4ffaaf2f3
Autor:
Mohamed S. Elrefaey, Mohamed E. Ibrahim, Elsayed Tag Eldin, Hossam Youssef Hegazy, Samia Abdalfatah, Elwy E. EL-Kholy
Publikováno v:
Energies, Vol 15, Iss 17, p 6469 (2022)
In this paper, a proposed electric drive system for a three-phase induction motor is presented. The proposed drive system is suggested for a golf car as one type of electric vehicle. The suggested system consists of three similar single-phase buck–
Externí odkaz:
https://doaj.org/article/f031eeddf70b40329c4ca76f8499b6ea
Autor:
Mohamed E. Ibrahim, Elsayed Tag Eldin, Safaa F. Elzoghby, Mohamed A. Izzularab, Amr M. Abd-Elhady
Publikováno v:
Energies, Vol 15, Iss 13, p 4860 (2022)
In this paper, the role of the accumulated surface charge on the surfaces of nanoparticles on breakdown strength for liquid and solid dielectrics is presented. The breakdown strengths of a nanofilled liquid dielectric and a solid dielectric are evalu
Externí odkaz:
https://doaj.org/article/ffe392d57fca4e31b2649905bddcb7a3
Measurement of Power Frequency Current including Low- and High-Order Harmonics Using a Rogowski Coil
Autor:
Mohammed El-Shahat, Elsayed Tag Eldin, Nourhan A. Mohamed, Ahdab EL-Morshedy, Mohamed E. Ibrahim
Publikováno v:
Sensors, Vol 22, Iss 11, p 4220 (2022)
The measurement of a power frequency current including low- and high-order harmonics is of great importance in calibration as well as in testing processes. Therefore, this paper presents the measurement of the power frequency current of light-emittin
Externí odkaz:
https://doaj.org/article/f17eb82a758d4585b7755527d82dc458
Publikováno v:
Electrical Engineering. 105:1669-1681
In this study, the dielectric properties of unfilled as well as nanofilled polystyrene-silicone rubber blends are evaluated. Accordingly, the preparation of polystyrene-silicone rubber blends is carried out considering three different concentrations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04eeef08bb7270a47feeab688385c431
https://doi.org/10.1007/s00202-023-01756-z
https://doi.org/10.1007/s00202-023-01756-z