Zobrazeno 1 - 10
of 449
pro vyhledávání: '"Mahmoud A. Sayed"'
Publikováno v:
IEEE Access, Vol 9, Pp 58689-58705 (2021)
Single-ended primary-inductor converter (SEPIC) based differential inverters (SEPIC-BDI) have received wide concerns in renewable energy applications due to their modularity, galvanic isolation, decreased power stages, continuous input current, and s
Externí odkaz:
https://doaj.org/article/27309699d3b54ce5b010b5bbcdab8805
Autor:
Mahmoud A. Sayed, Takaharu Takeshita, Atif Iqbal, Zuhair Muhammed Alaas, M. M. R. Ahmed, Sherif M. Dabour
Publikováno v:
IEEE Access, Vol 9, Pp 166058-166070 (2021)
The need to integrate energy storage devices with renewable energy sources and improve the employed converters’ modulation and control techniques continues to grow. This trend is further activated by utilizing new converter topologies, such as high
Externí odkaz:
https://doaj.org/article/9c1f4976815c4011a2e485ce1a537052
Autor:
Essam H. Ibrahim, Mohammad Y. Alshahrani, Hamed A. Ghramh, Hani Alothaid, Mona Kilany, Kareem Morsy, Attalla F. El-kott, Ramadan Taha, Haitham I. El-Mekkawy, Gamal A. EL-Shaboury, Ahmed A. El-Mansi, Mohammed E.A. Mohammed, Mahmoud A. Sayed, Ibrahim S. Yahia
Publikováno v:
Journal of King Saud University: Science, Vol 34, Iss 3, Pp 101878- (2022)
Colorectal cancer is reported as the third major incentive of cancer doom. The present work is meant to examine the anticancer potential of Origanum majorana leaf acetone extract (OMAE) to fight HT-29 human colon cancer cells. Biomolecules in OMAE we
Externí odkaz:
https://doaj.org/article/5fff8ea878d34e97822dd46dad461e57
Publikováno v:
IEEE Access, Vol 8, Pp 147407-147421 (2020)
The simple circuit based on DC-DC converters is the main attractive feature of the differential inverter topologies. It has a single-stage and provides modularity and scalability. However, the Negative Sequence Harmonic Component (NSHC) generated at
Externí odkaz:
https://doaj.org/article/08241127a0c342e8afb8e0082b075b1d
Autor:
H. Elhosiny Ali, Mohammad Abdel-Aziz, Ashraf Mahmoud Ibrahiem, Mahmoud A. Sayed, Hisham S. M. Abd-Rabboh, Nasser S. Awwad, Hamed Algarni, Mohd. Shkir, M. Yasmin Khairy
Publikováno v:
Polymers, Vol 14, Iss 9, p 1741 (2022)
Hybrid polymer films of polyvinyl pyrrolidone (PVP)/polyvinyl alcohol (PVA) embedded with gradient levels of Bi-powder were prepared using a conventional solution casting process. XRD, FTIR, and SEM techniques have been used to examine the micro/mole
Externí odkaz:
https://doaj.org/article/94e30399634f4915ac38294a5604704f
Autor:
Ahmed Ismail M. Ali, Cao Anh Tuan, Takaharu Takeshita, Mahmoud A. Sayed, Zuhair Muhammed Alaas
Publikováno v:
Sensors, Vol 22, Iss 5, p 2064 (2022)
This paper proposes a single-stage three-phase modular flyback differential inverter (MFBDI) for medium/high power solar PV grid-integrated applications. The proposed inverter structure consists of parallel modules of flyback DC-DC converters based o
Externí odkaz:
https://doaj.org/article/37a28caf82a64f23bb1f80a4d7e035b4
Autor:
Essam E.M. Mohamed, Mahmoud A. Sayed
Publikováno v:
Ain Shams Engineering Journal, Vol 9, Iss 3, Pp 329-340 (2018)
In this paper, the system of the Linear Induction Motor (LIM) driven by direct AC–AC matrix converter is presented and its dynamic performance is briefly compared with the conventional LIM drives based on AC–DC–AC converter. Space-vector pulse-
Externí odkaz:
https://doaj.org/article/ed1fae6743f14b2ea033183e1d707406
Publikováno v:
The Egyptian Journal of Bronchology, Vol 12, Iss 3, Pp 317-322 (2018)
Abstract Context Chronic obstuctive lung disease (COPD) is a common preventable and treatable disease. Low-level laser therapy (LLLT) appears to be a promising modality in COPD management. Aims The aim was to study the short-term effects of LLLT on c
Externí odkaz:
https://doaj.org/article/16ae6fa1669448a1914bffa0a55e2dbb
Autor:
Moteb M. Alqahtani, Atif M. Ali, Farid A. Harraz, M. Faisal, Adel A. Ismail, Mahmoud A. Sayed, M. S. Al-Assiri
Publikováno v:
Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-13 (2018)
Abstract Mesoporous α–Fe2O3 has been synthesized via a simple sol-gel procedure in the presence of Pluronic (F-127) triblock copolymer as structure directing agent. Silver (Ag) nanoparticles were deposited onto α–Fe2O3 matrix by the photochemic
Externí odkaz:
https://doaj.org/article/ccdaeb8279f54fc5a64e3cdfcfad6d12
Publikováno v:
Energies, Vol 14, Iss 12, p 3701 (2021)
This paper proposes a three-phase isolated flyback inverter (IFBI) for single-stage grid-tied solar PV applications, considering a simple sinusoidal pulse-width modulation (SPWM) scheme. The proposed single-stage inverter employs a reduced passive el
Externí odkaz:
https://doaj.org/article/fa8ff6a0b4f147d9ac6eb21090e02c83