Search Results - "Hamdy, Mohamed"

Evaluating nano Primal AC33 for protection and consolidation processes of archaeological pottery: a comparison study with silica and montmorillonite nanoparticles by Mohamed Mohamed, Hamdy, Mohamed, Wael Sabry

“…Purpose This study aims to offer an effective nanocomposite for potential use to consolidate and protect deteriorated archaeological pottery…”
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THE ROLE OF ENVIRONMENTAL ACCOUNTING IN ACHIEVING SUSTAINABLE DEVELOPMENT: EVIDENCE FROM KAZAKHSTAN by Abdelrady Mohamed, Hamdy Mohamed

“…Kazakh business establishments demonstrate a collective approach in addressing the environmental dimension by evaluating their environmental management systems…”
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Explainable extreme gradient boosting tree-based prediction of load-carrying capacity of FRP-RC columns by Bakouregui, Abdoulaye Sanni, Mohamed, Hamdy M., Yahia, Ammar, Benmokrane, Brahim

“…•Development of an XGBoost predictive model of maximum axial load-carrying capacity of FRP-RC columns.•Interpretation of XGBoost prediction model using SHAP…”
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Multi-analytical techniques for characterization of ancient Egyptian pottery objects from Cairo University excavations at Saqqara by Mohamed Mohamed, Hamdy, Omar, Sherif

“…Archaeological pottery shows various forms of deterioration and degradation. This research aims to determine the chemical composition and diagnose the damage…”
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Axial Load–Moment Interaction Diagram of Circular Concrete Columns Reinforced with CFRP Bars and Spirals: Experimental and Theoretical Investigations by Hadhood, Abdeldayem, Mohamed, Hamdy M, Benmokrane, Brahim

“…AbstractNorth America’s current design codes and guidelines allow the use of fiber–reinforced polymer (FRP) bars as the primary reinforcement in concrete…”
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Experimental Study of Circular High-Strength Concrete Columns Reinforced with GFRP Bars and Spirals under Concentric and Eccentric Loading by Hadhood, Abdeldayem, Mohamed, Hamdy M, Benmokrane, Brahim

“…AbstractIntegrating fiber-reinforced polymer (FRP) reinforcement into high-strength concrete (HSC) would effectively contribute to enhancing the stiffness of…”
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Strength of circular HSC columns reinforced internally with carbon-fiber-reinforced polymer bars under axial and eccentric loads by Hadhood, Abdeldayem, Mohamed, Hamdy M., Benmokrane, Brahim

“…•Behavior and failure mechanisms of circular HSC columns reinforced with CFRP bars and spirals under eccentric loads are presented.•The performance of CFRP…”
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Multiscale (microscopic to remote sensing) preliminary exploration of auriferous-uraniferous marbles: A case study from the Egyptian Nubian Shield by Shebl, Ali, Hamdy, Mohamed

“…Since their recent first record within the Egyptian Nubian Shield, auriferous and uraniferous marbles (Au = 0.98–2.76 g/t; U = 133–640 g/t) have rarely been…”
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Pd‐Doped Co3O4 Nanoarray for Efficient Eight‐Electron Nitrate Electrocatalytic Reduction to Ammonia Synthesis by Fan, Xiaoya, Liu, Chaozhen, Li, Zixiao, Cai, Zhengwei, Ouyang, Ling, Li, Zerong, He, Xun, Luo, Yongsong, Zheng, Dongdong, Sun, Shengjun, Wang, Yan, Binwu Ying, Liu, Qian, Farouk, Asmaa, Hamdy, Mohamed S, Gong, Feng, Sun, Xuping, Zheng, Yinyuan

“…Ammonia (NH3) is an indispensable feedstock for fertilizer production and one of the most ideal green hydrogen rich fuel. Electrochemical nitrate (NO3−)…”
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Valorization of spent double substituted Co–Ni–Zn–Fe LDH wastewater nanoadsorbent as methanol electro-oxidation catalyst by Mahmoud, Rehab, Mohamed, Hamdy F. M., Hafez, Sarah H. M., Gadelhak, Yasser M., Abdel-Hady, E. E.

“…Finding suitable non-expensive electrocatalyst materials for methanol oxidation is a significant challenge. Waste valorization of spent wastewater…”
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Textural properties and adsorption behavior of Zn–Mg–Al layered double hydroxide upon crystal violet dye removal as a low cost, effective, and recyclable adsorbent by Abdel-Hady, E. E., Mohamed, Hamdy F. M., Hafez, Sarah H. M., Fahmy, Abdalla M. M., Magdy, Abdelhamed, Mohamed, Aya S., Ali, Eman O., Abdelhamed, Hager R., Mahmoud, Osama M.

“…The preparation of adsorbents plays a vital role in the adsorption method. In particular, many adsorbents with high specific surface areas and unique shapes…”
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An experimental study for using nano-alumina to improving mechanical properties of epoxy resin for assembling glass artifacts by Eloriby, Rania Abdel Gwad, Mohamed, Hamdy Mohamed

“…Purpose This study aims to assess the efficacy of nano-alumina (nano-Al 2 O 3 ) in improving the performance of epoxy adhesives used to assemble archaeological…”
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Axial Capacity of Circular Concrete Columns Reinforced with GFRP Bars and Spirals by Afifi, Mohammad Z, Mohamed, Hamdy M, Benmokrane, Brahim

“…AbstractSeveral codes and design guidelines are now available for the design of concrete structures reinforced with fiber-reinforced polymer (FRP) bars under…”
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Assessing gaps and needs for integrating building performance optimization tools in net zero energy buildings design by Attia, Shady, Hamdy, Mohamed, O’Brien, William, Carlucci, Salvatore

“…► Evolutionary algorithms are a breakthrough for solving constrained building design problems. ► Time, knowledge, lack of tools, and uncertainty inhibit the…”
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Inelastic Second-Order Analysis for Slender GFRP-Reinforced Concrete Columns: Experimental Investigations and Theoretical Study by Abdelazim, Waseem, Mohamed, Hamdy M, Benmokrane, Brahim

“…Abstract Designing reinforced concrete (RC) columns reinforced entirely with fiber-reinforced polymer (FRP) bars requires an explicit definition of the…”
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Improving the properties of gap-filling materials for pottery artifacts with nano silica and nano kaolinite polymeric nanocomposites by Mohamed, Hamdy Mohamed, Mohamed, Wael Sabry

“…Purpose The study aims to assess the efficiency of nanocomposite to improve the properties of gap-filling materials for pottery artifacts…”
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Contribution of lightweight self-consolidated concrete (LWSCC) to shear strength of beams reinforced with basalt FRP bars by Mehany, Shehab, Mohamed, Hamdy M., Benmokrane, Brahim

“…•Shear strength of lightweight self-consolidating concrete beams reinforced with BFRP bars.•A concrete density reduction factor is proposed.•The effect of…”
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Nitrite reduction over Ag nanoarray electrocatalyst for ammonia synthesis by Liu, Qian, Wen, Guilai, Zhao, Donglin, Xie, Lisi, Sun, Shengjun, Zhang, Longcheng, Luo, Yongsong, Ali Alshehri, Abdulmohsen, Hamdy, Mohamed S., Kong, Qingquan, Sun, Xuping

“…Ag nanoarray using NiO nanosheets array on carbon cloth as support behaves as a high-active and stable electrocatalyst for NO2– reduction into NH3 with a…”
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Surface Ti3+-Containing (blue) Titania: A Unique Photocatalyst with High Activity and Selectivity in Visible Light-Stimulated Selective Oxidation by Hamdy, Mohamed S, Amrollahi, Rezvaneh, Mul, Guido

“…A one-step synthesis procedure at elevated temperature was used to prepare Ti3+-containing blue titania. The prepared material was characterized by X-ray…”
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Performance Evaluation of Concrete Columns Reinforced Longitudinally with FRP Bars and Confined with FRP Hoops and Spirals under Axial Load by Mohamed, Hamdy M, Afifi, Mohammad Z, Benmokrane, Brahim

“…AbstractNowadays, AASHTO LRFD Bridge Design Specifications and the Canadian Highway Bridge Design Code contain flexural and shear provisions for the design of…”
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