Browsing by Author "Ahmed M."
Now showing items 1-7 of 7
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A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology with Reduced Switch Count
Siddique, Marif Daula; Alamri, B.; Salem, F. A.; Orabi, M.; Mekhilef, Saad; Shah, N. M.; Sandeep, N.; Ali, Mohamed J. S.; Iqbal, Atif; Ahmed M.; Ghoneim, S. S. M.; Al-Harthi, M. M.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)This paper presents a new boost inverter topology with nine level output voltage waveform using a single dc source and two switched capacitors. The capacitor voltages are self-balancing and thus is devoid of any sensors ... -
A two-level optimization approach for robust aircraft routing and retiming
Ben Ahmed, M.; Zeghal Mansour, F.; Haouari, M. ( Elsevier Ltd , 2017 , Article)We investigate the Robust Aircraft Routing and Retiming Problem that is defined as follows. Given a set of flight legs to be served by a set of aircraft fleets, together with a tentative schedule, the problem requires ... -
Application of DFT in iron sulfide scale removal from oil and gas wells
Onawole A.; Hussein I.; Saad M.; Ahmed M.; Aparicio S. ( European Association of Geoscientists and Engineers, EAGE , 2019 , Conference Paper)Scale formation including those formed by iron sulfides have been a major hassle in the upstream sector of the oil and gas industry for many decades. Iron Sulfide scales including pyrite (FeS2) and troilite (FeS) often ... -
Bone marrow mesenchymal stem cells preconditioned with nitric-oxide-releasing chitosan/PVA hydrogel accelerate diabetic wound healing in rabbits
Ahmed R.; Afreen A.; Tariq M.; Zahid A.A.; Masoud M.S.; Ahmed M.; Ali I.; Akram Z.; Hasan, Anwarul... more authors ... less authors ( IOP Publishing Ltd , 2021 , Article)Impaired diabetic wounds are one of the major pathophysiological complications caused by persistent microbial infections, prolonged inflammation, and insufficient angiogenic responses. Here, we report the development of ... -
Development of a New Borax-Based Formulation for the Removal of Pyrite Scales
Ahmed M.; Hussein I.A.; Onawole A.T.; Saad M.A. ( American Chemical Society , 2020 , Article)In the oil and gas industry, pyrite forms one of the most hardened scales in reservoirs, which hinders the flow of fluids. Consequently, this leads to blockage of the downhole tubular, formation damage, and complete shutdown ... -
Dissolution kinetics of different inorganic oilfield scales in green formulations
Ahmed M.; Hussein I.A.; Onawole A.T.; Saad M.A.; Mahmoud M. ( American Chemical Society , 2020 , Article)Scale mineral deposition is a critical problem that hinders the daily production of oil and gas fields. Chemical removal of these scales, based on the scale type, is common. In this paper, borax and diethylene tremaine ... -
Electrochemical removal of pyrite scale using green formulations
Ahmed M.; Hussein I.A.; Onawole A.T.; Saad M.A.; Khaled M. ( Nature Research , 2021 , Article)Pyrite scale formation is a critical problem in the hydrocarbon production industry; it affects the flow of hydrocarbon within the reservoir and the surface facilities. Treatments with inorganic acids, such as HCl, results ...