Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Kamel, Amin"'
Autor:
A. Z. Amin, M. A. Abdelkawy, Amr Kamel Amin, António M. Lopes, Abdulrahim A. Alluhaybi, I. Hashim
Publikováno v:
AIMS Mathematics, Vol 8, Iss 9, Pp 20871-20891 (2023)
Integral equations play a crucial role in many scientific and engineering problems, though solving them is often challenging. This paper addresses the solution of multi-dimensional systems of mixed Volterra-Fredholm integral equations (SMVF-IEs) by m
Externí odkaz:
https://doaj.org/article/9afcae85f74541e6b95c3eb8d0f279df
Preparation of inorganic catalysts from ceramic industry wastes for use in the production of biofuel
Autor:
Sarah Hisham Hassan, Nahed Kamal Attia, Guzine Ibrahim El Diwani, Reem Sayed Ettouney, Mahmoud Abdel Hakim El-Rifai, Shereen Kamel Amin
Publikováno v:
Journal of Engineering and Applied Science, Vol 70, Iss 1, Pp 1-18 (2023)
Abstract Catalysts’ surface structural features and characterizations play an important role in many chemical industrial processes among which is biofuel production. Heterogeneous catalysts strongly affect the types of products in catalytic hydrocr
Externí odkaz:
https://doaj.org/article/feb1930b790e46d8baacfdf0b28f2a09
Publikováno v:
AIMS Mathematics, Vol 7, Iss 7, Pp 12962-12980 (2022)
This article deals with a Horadam type of generalized numbers involving four parameters. These numbers generalize several celebrated numbers in the literature such as the generalized Fibonacci, generalized Lucas, Fibonacci, Lucas, Pell, Pell-Lucas, F
Externí odkaz:
https://doaj.org/article/87c49577ff684bdeb69204f266fa1f4d
Publikováno v:
Bulletin of the National Research Centre, Vol 46, Iss 1, Pp 1-15 (2022)
Abstract Background The safe disposal of green waste is necessary for a clean environment, with the safe disposal of waste contaminated with aflatoxins being of particular importance. This work presents a novel route for utilizing contaminated grains
Externí odkaz:
https://doaj.org/article/ac390f6e47f64b2c80e725363b8e9a63
Publikováno v:
Fractal and Fractional, Vol 7, Iss 9, p 652 (2023)
In this study, we present an innovative approach involving a spectral collocation algorithm to effectively obtain numerical solutions of the nonlinear time-fractional generalized Kawahara equation (NTFGKE). We introduce a new set of orthogonal polyno
Externí odkaz:
https://doaj.org/article/aec6db8bded945f28a41342ac3f09df5
Autor:
Doaa Mohammed Youssef, Amal S. El-Shal, Rabab M. Elbehidy, Mohamed Adel Fouda, Sally M. Shalaby, Lamiaa Lotfy El Hawy, Abdelrahman Fathi Elsadek, Mayy Abd Alfattah Neemat-Allah, Seham M. Ramadan, Amal Gohary, Faika Arab, Mona Alsharkawy, Sabry Abdel Rahman Tolba, Mohamed Mohamed Abdelsalam, Ezzat Kamel Amin, Mona Hamed Gehad
Publikováno v:
Journal of Clinical Medicine, Vol 12, Iss 5, p 1864 (2023)
Background: Children with chronic kidney disease (CKD), particularly those who require hemodialysis (HD), are at high risk of hepatitis B virus (HBV) infection. The HBV vaccine non-/hypo-response rate among HD children remains high, and it is critica
Externí odkaz:
https://doaj.org/article/b317b2c44a374dde88bb332f3aa8eb34
Publikováno v:
Symmetry, Vol 15, Iss 2, p 345 (2023)
The primary focus of this article is on applying specific generalized Jacobi polynomials (GJPs) as basis functions to obtain the solution of linear and non-linear even-order two-point BVPs. These GJPs are orthogonal polynomials that are expressed as
Externí odkaz:
https://doaj.org/article/de306eda256545f2afda87b77aea7b78
Publikováno v:
Axioms, Vol 12, Iss 2, p 99 (2023)
This paper is devoted to proposing numerical algorithms based on the use of the tau and collocation procedures, two widely used spectral approaches for the numerical treatment of the initial high-order linear and non-linear equations of the singular
Externí odkaz:
https://doaj.org/article/4ea6b7b9abce40d6a39e5f964ca27acd
Publikováno v:
Mathematics, Vol 11, Iss 2, p 468 (2023)
This paper explores the Schröder polynomials, a class of polynomials that produce the famous Schröder numbers when x=1. The three-term recurrence relation and the inversion formula of these polynomials are a couple of the fundamental Schröder poly
Externí odkaz:
https://doaj.org/article/7c1089e321f14473b0140c8ecd0abcce
Publikováno v:
Symmetry, Vol 15, Iss 1, p 138 (2023)
This article proposes a numerical algorithm utilizing the spectral Tau method for numerically handling the Kawahara partial differential equation. The double basis of the fifth-kind Chebyshev polynomials and their shifted ones are used as basis funct
Externí odkaz:
https://doaj.org/article/941b2f60360647349559e6756829c238