Výsledky vyhledávání - "Mahmoud Y. Ahmed"

Autor: Alan Eldin R. Shehata, Mahmoud Y. Ahmed, Salah S. El Agooz, Essam Abd Elwanees Amer

Publikováno v: The International Conference on Electrical Engineering. 7:1-13

In this paper, we proposed a novel technique for modification of the Data Encryption Standard (DES) to ensure a security enhancement against cryptographic attacks that were the main problem in DES algorithm. The proposed modification extended the key

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38612138d6aa17376399de761847fcaa
https://doi.org/10.21608/iceeng.2010.32840

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Surrogates for the Aerodynamic Coefficients of Supersonic Airfoils

Autor: Mahmoud Y. Ahmed

Publikováno v: 53rd AIAA Aerospace Sciences Meeting.

Generally, physical phenomena are represented in the form of explicit mathematical expressions that stem from basic governing equations. However, in many cases, having these expressions may not be achieved and a considerable part of our knowledge rel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e916d2b18288da3e785bbf2e2cd48cd
https://doi.org/10.2514/6.2015-0770

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