Gegenbauer Collocation Integration Methods: Advances in Computational Optimal Control Theory, PhD dissertation

Research Abstract

NULL

Research Authors
Elgindy, Kareem
Research Department
Department of Mathematics
Research Journal
Faculty of Science. School of Mathematical Sciences
Research Member
Kareem Taha Elgindy
Research Pages
http://arrow.monash.edu.au/hdl/1959.1/871757
Research Publisher
Monash University
Research Rank
1
Research Vol
ethesis-20130514-180935
Research Website
https://figshare.com/articles/Gegenbauer_collocation_integration_methods_advances_in_computational_optimal_control_theory/4704919
Research Year
2013

High-order numerical solution of second-order one-dimensional hyperbolic telegraph equation using a shifted Gegenbauer pseudospectral method

Research Abstract

NULL

Research Authors
Kareem T. Elgindy
Research Department
Department of Mathematics
Research Journal
Numerical Methods for Partial Differential Equations
Research Member
Kareem Taha Elgindy
Research Pages
pp. 307–349
Research Publisher
John Wiley and Sons
Research Rank
1
Research Vol
Volume 32 - Issue 1
Research Website
http://onlinelibrary.wiley.com/doi/10.1002/num.21996/abstract
Research Year
2016

The role of Brønsted acid site strength on the catalytic performance of phosphotungstic acid supported on nano γ-alumina catalysts for the dehydration of ethanol to diethyl ether

Research Abstract

The role of Brønsted acid site strength on the catalytic performance of phosphotungstic acid supported on nano γ-alumina catalysts for the dehydration of ethanol to diethyl ether

Research Authors
Abd El-Aziz A. Said, Mohamed M. M. Abd El-Wahab, Marwa M. Abdelhak
Research Department
Department of chemistry
Research Journal
Reaction Kinetics, Mechanisms and Catalysis
Research Member
Mohamed Mahmoud Mohamed Ahmed Abdel-Wahab
Research Pages
433-449
Research Publisher
NULL
Research Rank
1
Research Vol
122
Research Website
https://link.springer.com/article/10.1007/s11144-017-1207-x
Research Year
2017

The role of Brønsted acid site strength on the catalytic performance of phosphotungstic acid supported on nano γ-alumina catalysts for the dehydration of ethanol to diethyl ether

Research Abstract

The role of Brønsted acid site strength on the catalytic performance of phosphotungstic acid supported on nano γ-alumina catalysts for the dehydration of ethanol to diethyl ether

Research Authors
Abd El-Aziz A. Said, Mohamed M. M. Abd El-Wahab, Marwa M. Abdelhak
Research Department
Department of chemistry
Research Journal
Reaction Kinetics, Mechanisms and Catalysis
Research Member
Abdel-Aziz Ahmed Said
Research Pages
433-449
Research Publisher
NULL
Research Rank
1
Research Vol
122
Research Website
https://link.springer.com/article/10.1007/s11144-017-1207-x
Research Year
2017

Superior catalytic performance of CaMoO4 catalyst in direct dehydrogenation of methanol into anhydrous formaldehyde

Research Abstract

CaMoO4 catalyst was synthesized by a facile and direct co-precipitation method. The original and calcined catalysts were characterized by a variety of techniques. The acidity of the catalysts was studied and correlated with the catalytic activity. The obtained results clearly revealed that CaMoO4 was an active and selective catalyst towards the formation of anhydrous formaldehyde. The highest conversion of methanol and yield of formaldehyde obtained were 100 and 98%, respectively. In addition, the moderate strength of Brønsted acid sites created on the surface of catalyst plays the main role in the formation of formaldehyde. Finally, the CaMoO4 catalyst exhibited a remarkable stability towards anhydrous formaldehyde production up to 120 h.

Research Authors
Abd El-Aziz A.Said and Mohamed N.Goda
Research Department
Department of chemistry
Research Journal
Chemical Physics Letters
Research Member
Mohamed Nady Abd El-Hameed Ebraheem
Research Pages
44-51
Research Publisher
NULL
Research Rank
1
Research Vol
703
Research Website
https://www.sciencedirect.com/science/article/pii/S0009261418303622
Research Year
2018

Superior catalytic performance of CaMoO4 catalyst in direct dehydrogenation of methanol into anhydrous formaldehyde

Research Abstract

CaMoO4 catalyst was synthesized by a facile and direct co-precipitation method. The original and calcined catalysts were characterized by a variety of techniques. The acidity of the catalysts was studied and correlated with the catalytic activity. The obtained results clearly revealed that CaMoO4 was an active and selective catalyst towards the formation of anhydrous formaldehyde. The highest conversion of methanol and yield of formaldehyde obtained were 100 and 98%, respectively. In addition, the moderate strength of Brønsted acid sites created on the surface of catalyst plays the main role in the formation of formaldehyde. Finally, the CaMoO4 catalyst exhibited a remarkable stability towards anhydrous formaldehyde production up to 120 h.

Research Authors
Abd El-Aziz A.Said and Mohamed N.Goda
Research Department
Department of chemistry
Research Journal
Chemical Physics Letters
Research Member
Abdel-Aziz Ahmed Said
Research Pages
44-51
Research Publisher
NULL
Research Rank
1
Research Vol
703
Research Website
https://www.sciencedirect.com/science/article/pii/S0009261418303622
Research Year
2018

Generalized setsin bitopological spaces

Research Abstract

In this paper we introduce and study semi closed and semi open sets in bitopological spaces and then we introduce and study the notions of sets and sets in bitopological spaces. Also, we define a new closure operator and associated topology on the bitopological space .

Research Authors
F.H.Khedr AND O. R. Sayed
Research Date
Research Department
Department of Mathematics
Research File
document.pdf (288.62 KB)
Research Journal
MALAYA JOURNAL OF MATEMATIK
Research Member
Fathi Hesham Khedr Ahmed
Research Pages
pp. 141-147
Research Publisher
MKD Publishing House, India.
Research Vol
9(3)
Research Website
https://www.malayajournal.org/index.php/mjm/index
Research Year
2021

Delta and theta generalized closed sets in bitopological spaces

Research Abstract

In this paper we introduce new two types of generalized closed sets in bitopological spaces and study some of it's properties and it's relations with other kinds of generalized closed sets. Using these sets we obtain a characterization of some separation axioms in bitopological spaces.

Research Authors
Khedr, F. H.
Research Department
Department of Mathematics
Research Journal
Assiut Univ. J. of Mathematics and computer Science
Research Member
Fathi Hesham Khedr Ahmed
Research Pages
pp. 1-10
Research Publisher
Assiut University
Research Rank
2
Research Vol
45(2)
Research Website
NULL
Research Year
2016

Results on generalized fuzzy soft topological spaces

Research Abstract

In this manuscript, the concept of a generalized fuzzy soft point is introduced and some of its basic properties were studied. Also, the concepts of a generalized fuzzy soft base (subbase) and a generalized fuzzy soft subspace were introduced and some important theorems were established. Finally, the relationship between fuzzy soft set, intuitionistic fuzzy soft set, generalized fuzzy soft set and generalized intuitionistic fuzzy soft set were investigated.

Research Authors
F. H. Khedr, S. A. Abd El-Baki and M. S. Malfi
Research Department
Department of Mathematics
Research Journal
Afr. J. Math. Comput. Sci.
Research Member
Shaker Ahmed Abdelbaki
Research Pages
pp. 35 – 45
Research Publisher
NULL
Research Rank
1
Research Vol
Vol. 11(3)
Research Website
http://www.academicjournals.org/AJMCSRNULL
Research Year
2018

Results on generalized fuzzy soft topological spaces

Research Abstract

In this manuscript, the concept of a generalized fuzzy soft point is introduced and some of its basic properties were studied. Also, the concepts of a generalized fuzzy soft base (subbase) and a generalized fuzzy soft subspace were introduced and some important theorems were established. Finally, the relationship between fuzzy soft set, intuitionistic fuzzy soft set, generalized fuzzy soft set and generalized intuitionistic fuzzy soft set were investigated.

Research Authors
F. H. Khedr, S. A. Abd El-Baki and M. S. Malfi
Research Department
Department of Mathematics
Research Journal
Afr. J. Math. Comput. Sci.
Research Member
Fathi Hesham Khedr Ahmed
Research Pages
pp. 35 – 45
Research Publisher
NULL
Research Rank
1
Research Vol
Vol. 11(3)
Research Website
http://www.academicjournals.org/AJMCSRNULL
Research Year
2018
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