Browsing by Author "Khan A."
Now showing items 1-15 of 15
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Designing and performance evaluation of polyelectrolyte multilayered composite smart coatings
Khan A.; Sliem M.H.; Arif A.; Salih M.A.; Shakoor R.A.; Montemor M.F.; Kahraman R.; Mansour S.; Abdullah A.M.; Hasan A.... more authors ... less authors ( Elsevier B.V. , 2019 , Article)This work reports the synthesis of polyelectrolyte microcapsules and its effect on the anti-corrosion performance of polymeric coating applied on steel substrates. In situ polymerization technique was used for the synthesis ... -
Development of innovative indoor/outdoor air quality monitoring for environmental impact assessment in the State of Qatar
Alassi A.; Khan A.; Ayesh D.; Aljayyousi I.; Aldisi R.; Elasad S.; Touati F.; Benammar M.... more authors ... less authors ( WITPress , 2014 , Article)Air pollution is one of the most crucial factors affecting the quality of life and health of increasingly urban populations; a country with a fast-growing economy based on hydrocarbons such as Qatar is no exception. In ... -
Dual Active Full Bridge Implementation on Typhoon HIL for G2V and V2G Applications
Khan A.; Jarraya F.; Gastli A.; Ben-Brahim L.; Hamila R.; Rajashekara K.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The Dual Active Full Bridge (DAFB) is one of the promising isolated DC/DC converter topologies that will play a significant role in the future integration of Electric Vehicle (EV) into Smart Grids (SGs). This is due to its ... -
Electrolytic capacitor-less dual buck inverter with CM and DM active resonance damping control for Non-isolated grid-connected PV applications
Khan A.; Ben-Brahim L.; Gastli A.; Al-Emadi N. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The shoot-through problem of conventional H-Bridge inverters imposes a threat to system's reliability and efficiency. This is because the unintentional shoot-through state short-circuits the DC-Link capacitor. To overcome ... -
Enhancement of mechanical and corrosion resistance properties of electrodeposited NiP-TiC composite coatings
Fayyaz O.; Khan A.; Shakoor R.A.; Hasan, Anwarul; Yusuf M.M.; Montemor M.F.; Rasul S.; Khan K.; Faruque M.R.I.; Okonkwo P.C.... more authors ... less authors ( Nature Research , 2021 , Article)In the present study, the effect of concentration of titanium carbide (TiC) particles on the structural, mechanical, and electrochemical properties of Ni–P composite coatings was investigated. Various amounts of TiC particles ... -
Hybrid differential evolutionary strawberry algorithm for real-parameter optimization problems
Mashwani, W.K.; Khan, A.; Gokta?, A.; Unvan, Y.A.; Yaniay, O.; Hamdi, A.... more authors ... less authors ( Bellwether Publishing, Ltd. , 2021 , Article)Evolutionary algorithms (EAs) is a family of population-based nature optimization methods. In contrast to classical optimization techniques, EAs provide a set of approximated solutions for different test suites of optimization ... -
Modeling and control for new LLCL filter based grid-tied PV inverters with active power decoupling and active resonance damping capabilities
Khan A.; Gastli A.; Ben-Brahim L. ( Elsevier Ltd , 2018 , Article)LLCL filters utilization decreases single-phase transformerless inverter's AC-Side volume significantly. Conversely, the inherent 2nd order power harmonic ripples burden inverters' DC-Side. In fact, the passive solution ... -
Modified transformerless dual buck inverter with improved lifetime for PV applications
Khan A.; Blaabjerg F. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The Dual Buck Inverter (DBI) possesses no shoot-through concerns and it can improve the efficiency by utilizing power MOSFETs. This is because at accidentally triggered shoot-through states; two inductors are in-parallel ... -
Novel LCL filter for non-isolated photovoltaic inverters with CM current trapping capability for weak grids
Khan, A.; Khan, Ahmad; Iqbal, Atif; Shadmand, Mohammad B. ( IEEE , 2018 , Conference Paper)© 2018 IEEE. In this work, a novel LCL filter topology for non-isolated Photovoltaic (PV) applications is developed. This topology has the ability to trap the High-Frequency (HF) Common Mode (CM) current inside the PV ... -
Novel shunt-less filters for grid-connected transformerless photovoltaic applications
Khan A.; Blaabjerg F. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The existing ground leakage current suppression methodologies are effective when Photovoltaic (PV) arrays' stray capacitors are small (in several nano-Farads). In such case, the High Frequency (HF) content of the inverter's ... -
Secure policy execution using reusable garbled circuit in the cloud
Alam M.; Emmanuel N.; Khan T.; Khan A.; Javaid N.; Choo K.-K.R.; Buyya R.... more authors ... less authors ( Elsevier B.V. , 2018 , Article)While cloud computing is fairly mature, there are underpinning data privacy and confidentiality issues that have yet to be resolved by existing security solutions such as cross domain access control policies. The latter ... -
Self-healing performance of multifunctional polymeric smart coatings
Habib S.; Khan A.; Nawaz M.; Sliem M.H.; Shakoor R.A.; Kahraman R.; Abdullah A.M.; Zekri A.... more authors ... less authors ( MDPI AG , 2019 , Article)Multifunctional nanocomposite coatings were synthesized by reinforcing a polymeric matrix with halloysite nanotubes (HNTs) loaded with corrosion inhibitor (NaNO3) and urea formaldehyde microcapsules (UFMCs) encapsulated ... -
Semi-transparent thermo-electric cells based on bismuth telluride and its composites with CNTs and graphene
Fatima N.; Karimov K.S.; Nabi J.-U.; Meng H.; Ahmad Z.; Riaz M.; Bashir M.M.; Khan M.I.; Ali R.; Khan A.; Touati F.... more authors ... less authors ( National Institute of Optoelectronics , 2019 , Article)In this paper, semi-transparent thin film thermo-electric cells based on the composite of bismuth telluride (Bi2Te3, p-type and n-type) with graphene and carbon nanotubes (CNTs) have been reported. The voltage, current and ... -
Switchless power decoupling and switchless leakage current elimination in grid-tied inverters
Khan A.; Houchati M.; Ur-Rehman J.; Ben-Brahim L.; Gastli A. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper presents a grid-tied single-phase transformerless inverter that eliminates simultaneously the leakage current issue and the double grid frequency power pulsation without additional active circuitry. The control ... -
Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings
Khan A.; Ubaid F.; Fayyad E.M.; Ahmad Z.; Shakoor R.A.; Montemor M.F.; Kahraman R.; Mansour S.; Hassan M.K.; Hasan A.; Abdullah A.M.... more authors ... less authors ( Springer New York LLC , 2019 , Article)The present research work focuses on the synthesis, characterization and properties of novel polyelectrolyte multilayered microcapsules used as smart additives in organic coatings for corrosion protection of steel parts. ...