Search Results - "Ahmed El-Shafie"

Securing Full-Duplex Amplify-and-Forward Relay-Aided Communications Through Processing-Time Optimization by Marzban, Mohamed F., Shafie, Ahmed El, Sultan, Ahmed, Al-Dhahir, Naofal

“…We investigate physical-layer security of the full-duplex (FD) amplify-and-forward (AF) relay channel. We provide a new perspective on the problem and show…”
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Competitive adsorptive removal of promazine and promethazine from wastewater using olive tree pruning biochar: operational parameters, kinetics, and equilibrium investigations by El-Azazy, Marwa, El-Shafie, Ahmed S., Fawzy, Samer, Rooney, David W., Osman, Ahmed I.

“…This research aims to remove two phenothiazines, promazine (PRO) and promethazine (PMT), from their individual and binary mixtures using olive tree pruning…”
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Biochar of Spent Coffee Grounds as Per Se and Impregnated with TiO2: Promising Waste-Derived Adsorbents for Balofloxacin by El-Azazy, Marwa, El-Shafie, Ahmed S., Morsy, Hagar

“…Biochars (BC) of spent coffee grounds, both pristine (SCBC) and impregnated with titanium oxide (TiO2@SCBC) were exploited as environmentally friendly and…”
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A Deep Reinforcement Learning Framework for Data Compression in Uplink NOMA-SWIPT Systems by Elsayed, Mohamed, Badawy, Ahmed, El Shafie, Ahmed, Mohamed, Amr, Khattab, Tamer

“…<comment< Non-orthogonal multiple access (NOMA) shall play an important role in the current and foreseeable design of 5G and beyond networks. NOMA allows…”
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Ultrasonic health monitoring in structural engineering: buildings and bridges by Mutlib, Nadom Khalifa, Baharom, Shahrizan Bin, El-Shafie, Ahmed, Nuawi, Mohd Zaki

“…Summary Ultrasonic monitoring is one of the most important tools in the field of structural health monitoring (SHM). The main goal of this paper is to provide…”
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Application of Pineapple Leaves as Adsorbents for Removal of Rose Bengal from Wastewater: Process Optimization Operating Face-Centered Central Composite Design (FCCCD) by Hassan, Siham S, El-Shafie, Ahmed S, Zaher, Nourhan, El-Azazy, Marwa

“…Adsorptive removal of rose bengal (RB) from contaminated water samples was approached using pineapple leaves (PAL). Three adsorbents were utilized for that…”
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Adsorption Characteristics of Pristine and Magnetic Olive Stones Biochar with Respect to Clofazimine by El-Azazy, Marwa, Nabil, Iman, Hassan, Siham S, El-Shafie, Ahmed S

“…Olive stone biochars (OSBC), both pristine and following magnetization (MAG-OSBC), were utilized as eco-friendly and cost-effective sorbents for the…”
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Artificial-Noise-Aided Energy-Efficient Secure Beamforming for Multi-Eavesdroppers in Cognitive Radio Networks by Chen, Pu, Ouyang, Jian, Zhu, Wei-Ping, Lin, Min, Shafie, Ahmed El, Al-Dhahir, Naofal

“…In this article, we investigate optimal beamforming at a multiantenna primary base station (PBS) and a multiantenna cognitive base station (CBS) for…”
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Green Tea Waste as an Efficient Adsorbent for Methylene Blue: Structuring of a Novel Adsorbent Using Full Factorial Design by El-Azazy, Marwa, El-Shafie, Ahmed S., Al-Shaikh Yousef, Bayan

“…Adsorptive removal of methylene blue (MB) from contaminated water samples was achieved using green tea waste (GTW). Adsorption of MB onto raw (RGTW) and…”
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Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach by El‐Azazy, Marwa, Kalla, Razan N., Issa, Ahmed A., Al‐Sulaiti, Maetha, El‐Shafie, Ahmed S., Shomar, Basem, Al‐Saad, Khalid

“…Pomegranate peels (PGP) were tested as a green adsorbent for the removal of Ni(II) from contaminated water samples. Both raw (RPG), and char/burnt peels (BPG)…”
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Bio-Waste Aloe vera Leaves as an Efficient Adsorbent for Titan Yellow from Wastewater: Structuring of a Novel Adsorbent Using Plackett-Burman Factorial Design by El-Azazy, Marwa, Dimassi, Sarra, El-Shafie, Ahmed, Issa, Ahmed

“…Titan yellow (TY), a triazene azo dye, was removed from contaminated wastewater samples using a green adsorbent recycled from Aloe vera leaves (AV) waste. Two…”
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Securing Untrusted Full-Duplex Relay Channels in the Presence of Multiple External Cluster-Based Eavesdroppers by Mabrouk, Asma, Shafie, Ahmed El, Tourki, Kamel, Al-Dhahir, Naofal, Hamdi, Noureddine

“…We investigate the physical layer security of a wireless cooperative network where communication between Alice and Bob is assisted by a full-duplex (FD)…”
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A study of menstrual cycle effects on pain perception, haemodynamic response to laryngoscopy, and postoperative outcome in gynaecological laparoscopy by Hanna Mossad Samaan, Mariam, Mohamed Ahmed Sarhan, Tarek, Abd El Azim Ammar, Ramadan, Hanafy Mahmoud, Tamer, Mohamed Ahmed El Shafie, Ahmed

“…The physiological alterations that occur during the females' reproductive age due to hormonal fluctuations throughout the menstrual cycle may affect the…”
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Application of Plackett–Burman Design for Spectrochemical Determination of the Last-Resort Antibiotic, Tigecycline, in Pure Form and in Pharmaceuticals: Investigation of Thermodynamics and Kinetics by El-Shafie, Ahmed S., Yousef, Aseel, El-Azazy, Marwa

“…Tigecycline (TIGC) reacts with 7,7,8,8-tetracyanoquinodimethane (TCNQ) to form a bright green charge transfer complex (CTC). The spectrum of the CTC showed…”
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Impact of Passive and Active Security Attacks on MIMO Smart Grid Communications by Shafie, Ahmed El, Chihaoui, Hamadi, Hamila, Ridha, Al-Dhahir, Naofal, Gastli, Adel, Ben-Brahim, Lazhar

“…We consider multiple source nodes (consumers) communicating wirelessly their energy demands to the meter data-management system (MDMS) over the subarea…”
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Potato Peels as an Adsorbent for Heavy Metals from Aqueous Solutions: Eco-Structuring of a Green Adsorbent Operating Plackett–Burman Design by Al-Saad, Khalid, Al-Yafie, Jawaher, Al-Sulaiti, Maetha, Issa, Ahmed A., El-Shafie, Ahmed S., El-Azazy, Marwa, Shomar, Basem

“…Treatment of wastewater is becoming a concern of an increasing prominence. Trace amounts of toxic metalloids and heavy metals (HMs) would contaminate large…”
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Reducing Deep Percolation Losses Using a Geotextile Layer at Different Soil Depths and Irrigation Levels for Lettuce Crop (Lactuca sativa L. var. capitata) (Limor) by Abdelbaset, Marwa M., Dewedar, Osama M., Youssef, Ebtessam A., Molina-Martinez, José Miguel, El-Shafie, Ahmed F.

“…Due to rising food demand and the limitation of water resources, achieving water security is essential. The lettuce crop is affected when grown under limited…”
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A Comparison between Different Agro-Wastes and Carbon Nanotubes for Removal of Sarafloxacin from Wastewater: Kinetics and Equilibrium Studies by El-Azazy, Marwa, El-Shafie, Ahmed S, Elgendy, Ahmed, Issa, Ahmed A, Al-Meer, Saeed, Al-Saad, Khalid A

“…In the current study, eco-structured and efficient removal of the veterinary fluoroquinolone antibiotic sarafloxacin (SARA) from wastewater has been explored…”
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Mercury removal from water using deep eutectic solvents‐functionalized multi walled carbon nanotubes: Nonlinear autoregressive network with an exogenous input neural network approach by Fiyadh, Seef S., AlSaadi, Mohammed A., Binti Jaafar, Wan Z., AlOmar, Mohamed K., Fayaed, Sabah S., Hama, Ako R., Hin, Lai S., El‐Shafie, Ahmed

“…This work presents the experimental and modeling process for mercury ions removal from water using functionalized multi‐walled carbon nanotube as adsorbent…”
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TiO2-functionalized biochar from pistachio nutshells: adsorptive removal and photocatalytic decolorization of methyl orange by El-Shafie, Ahmed S., Abouseada, Maha, El-Azazy, Marwa

“…Pistachio nutshells-derived biochar (PNS-BC) was utilized as a cost-effective adsorbent for competently removing a model dye, methyl orange (MO) from…”
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