Search Results - "El‐Sayed, A. M. A."

Structural, morphological, optical properties and wettability of spin-coated copper oxide; influences of film thickness, Ni, and (La, Ni) co-doping by Khmissi, H., El Sayed, A. M., Shaban, Mohamed

“…Controlling the properties of nano-sized copper oxide (CuO) is an interesting approach for broadening its multifunctionality. This paper reports the deposition…”
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Identification of oxide defects in semiconductor devices: A systematic approach linking DFT to rate equations and experimental evidence by Goes, W., Wimmer, Y., El-Sayed, A.-M., Rzepa, G., Jech, M., Shluger, A.L., Grasser, T.

“…It is well-established that oxide defects adversely affect functionality and reliability of a wide range of microelectronic devices. In semiconductor-insulator…”
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Time Dependence and Signs of the Shift of the Surface Plasmon Resonance Frequency in Nanocages Elucidate the Nanocatalysis Mechanism in Hollow Nanoparticles by Mahmoud, M. A, El-Sayed, M. A

“…Surface plasmon resonance (SPR) wavelength of plasmonic nanoparticles is sensitive to changes in the dielectric function of its exposed surface to the medium…”
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An investigated organic and inorganic reinforcement as an effective economical filler of poly (methyl methacrylate) nanocomposites by Elkhouly, Heba I., Ali, Eman M., El-Sheikh, M. N., Hassan, A. El-Sayed M.

“…Polymer matrix composites have garnered the interest of the dentistry sector. Nano-fillers are frequently used as reinforcements in these composites to enhance…”
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Aggregation of Gold Nanoframes Reduces, Rather Than Enhances, SERS Efficiency Due to the Trade-Off of the Inter- and Intraparticle Plasmonic Fields by Mahmoud, M. A, El-Sayed, M. A

“…It is usually observed and understood that aggregation of silver and gold solid nanoparticles gives rise to enhanced SERS spectra due to the increased plasmon…”
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Positive solutions of singular Hadamard-type fractional differential equations with infinite-point boundary conditions or integral boundary conditions by El-Sayed, A. M. A., Gaafar, F. M.

“…We establish the existence of positive solutions to a class of a singular nonlinear Hadamard-type fractional differential equations with infinite-point…”
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Survey and population dynamics of land snails at Sharkia Governorate, Egypt by Bayoumi, S M, Omar, N A, Mohanna, A H, Ismail, S A A, Abed, M, El Sayed, A M A, El-Akhrasy, F I, Issa, M A

“…Land snails are a destructive agricultural pest in economic crops, but the populations for that pest are highly influenced by temperature and humidity,…”
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Caterpillar‐induced plant volatiles attract conspecific herbivores and a generalist predator by El‐Sayed, A. M., Knight, A. L., Basoalto, E., Suckling, D. M.

“…Plants release volatiles in response to caterpillar feeding that attracts natural enemies of the herbivores, a tritrophic interaction which has been considered…”
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Photocatalysis in Gold Nanocage Nanoreactors by Yen, C. W, Mahmoud, M. A, El-Sayed, M. A

“…The photodegradation of methyl orange was found to take place very efficiently using hollow Au nanocages which are known to have remaining Ag on their interior…”
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Comprehensive Approach of an Implicit Hybrid Urysohn–Stieltjes Integral Inclusions via Fractal Differential Constraint by El-Sayed, A. M. A., Hashem, H. H. G., Al-Issa, Sh. M., Assi, Z. M.

“…This investigation establishes the solvability of an implicit hybrid nonlinear Urysohn–Stieltjes type (IHU‐S) integral inclusion. Some sufficient conditions…”
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On Ghost Attractor in Blinking Chaotic MVD Memristor-Based Circuit and its Application by Ramaswamy, Rajagopalan, El-Sayed, A. M. A., Elsadany, A. A., Elsonbaty, Amr

“…This work is devoted to explore the possible existence of ghost attractors in a proposed nonautonomous blinking circuit with nonlinear memristors along with…”
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Performance Analysis of Fully Intuitionistic Fuzzy Multi-Objective Multi-Item Solid Fractional Transportation Model by Almotairi, Sultan, Badr, Elsayed, Elsisy, M. A., Farahat, F. A., El Sayed, M. A.

“…An investigation is conducted in this paper into a performance analysis of fully intuitionistic fuzzy multi-objective multi-item solid fractional transport…”
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Mathematical model for the novel coronavirus (2019‐nCOV) with clinical data using fractional operator by El‐Sayed, Ahmed M. A., Arafa, Anas, Hagag, Ahmed

“…Coronavirus infection (COVID‐19) is a considerably dangerous disease with a high demise rate around the world. There is no known vaccination or medicine until…”
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Members of a large retroposon family are determinants of post-transcriptional gene expression in Leishmania by Bringaud, Frédéric, Müller, Michaela, Cerqueira, Gustavo Coutinho, Smith, Martin, Rochette, Annie, El-Sayed, Najib M A, Papadopoulou, Barbara, Ghedin, Elodie

“…Trypanosomatids are unicellular protists that include the human pathogens Leishmania spp. (leishmaniasis), Trypanosoma brucei (sleeping sickness), and…”
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Experimental Evidence For The Nanocage Effect In Catalysis With Hollow Nanoparticles by Mahmoud, M. A, Saira, F, El-Sayed, M. A

“…Five different hollow cubic nanoparticles with wall length of 75 nm were synthesized from platinum and/or palladium elements. The five nanocatalysts are pure…”
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Multiscale Modeling Study of Native Oxide Growth on a Si(100) Surface by Cvitkovich, L., Jech, M., Waldhor, D., El-Sayed, A.-M., Wilhelmer, C., Grasser, T.

“…Silicon and its native oxide SiO 2 are the most commonly used materials in semiconductor device technology. After decades of research in this field, details of…”
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Copper-doped magnesium phosphate nanopowders for critical size calvarial bone defect intervention by El-Sayed, Sara A M, ElShebiney, Shaimaa, Beherei, Hanan H, Kumar, Pradeep, Choonara, Yahya E, Mabrouk, Mostafa

“…Calvarial defects of bone present difficult clinical situations, and their restoration using biocompatible materials requires special treatments that enable…”
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Monotonic solutions for a quadratic integral equation of fractional order by M. A. El-Sayed, A., M. Al-Issa, Sh

“…In this paper we present a global existence theorem of a positive monotonic integrable solution for the mixed type nonlinear quadratic integral equation of…”
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A comprehensive view of the solvability of non-local fractional orders pantograph equation with a fractal-fractional feedback control by A. M. A. El-Sayed, H. H. G. Hashem, Sh. M. Al-Issa

“…In this article, the solvability of the pantograph equation of fractional orders under a fractal-fractional feedback control was investigated. This…”
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Combining measurements and modeling/simulations analysis to assess carbon nanotube memory cell characteristics by Farmer, J., Veksler, D., Tang, E., Bersuker, G., Gao, D. Z., El-Sayed, A.-M., Durrant, T., Shluger, A., Rueckes, T., Cleveland, L., Luan, H., Sen, R.

“…A simulation package for CNT memory cells is developed, based on computational modeling of both the mesoscopic structure of carbon nanotube films and the…”
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