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ORCIDSherif I. Ammar
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2020 – today
- 2025
[j12]Micheal Mathavavisakan Nicholas GnanaSekar
, K. Indhira, Sherif I. Ammar:
Cost optimization and analysis of retrial queues with hybrid vacation policies and fault correction: a metaheuristic approach. RAIRO Oper. Res. 59(5): 2683-2720 (2025)- [j11]Micheal Mathavavisakan Nicholas GnanaSekar, Indhira Kandaiyan, Sherif I. Ammar:
Optimizing energy harvesting in web of things services: a metaheuristic approach with retrial queue under working vacation. Soft Comput. 29(6): 2769-2790 (2025) - 2021
- [j10]Alexander I. Zeifman, Yacov Satin, Ivan Kovalev, Sherif I. Ammar:
Ergodicity and perturbation bounds for Mt/Mt/1 queue with balking, catastrophes, server failures and repairs. RAIRO Oper. Res. 55(4): 2223-2240 (2021) - [j9]Sherif I. Ammar:
Fluid M/M/1 catastrophic queue in a random environment. RAIRO Oper. Res. 55(Supplement): S2677-S2690 (2021)
2010 – 2019
- 2019
- [j8]Sapana Sharma, Rakesh Kumar, Sherif Ibrahim Ammar:
Transient and steady-state analysis of a queuing system having customers' impatience with threshold. RAIRO Oper. Res. 53(5): 1861-1876 (2019) - [j7]Sherif I. Ammar, Pakkirisamy Rajadurai:
Performance Analysis of Preemptive Priority Retrial Queueing System with Disaster under Working Breakdown Services. Symmetry 11(3): 419 (2019) - 2018
- [j6]Tao Jiang, Sherif I. Ammar, Baoxian Chang, Liwei Liu:
Analysis of an N-Policy GI/M/1 Queue in a Multi-Phase Service Environmentwith Disasters. Int. J. Appl. Math. Comput. Sci. 28(2): 375-386 (2018) - 2015
- [j5]Sherif I. Ammar:
Transient analysis of an M/M/1 queue with impatient behavior and multiple vacations. Appl. Math. Comput. 260: 97-105 (2015) - 2014
- [j4]Sherif I. Ammar:
Analysis of an M|M|1 driven fluid queue with multiple exponential vacations. Appl. Math. Comput. 227: 329-334 (2014) - [j3]Sherif I. Ammar:
Fluid queue driven by an M/M/1 disasters queue. Int. J. Comput. Math. 91(7): 1497-1506 (2014) - 2012
- [j2]Sherif I. Ammar, A. A. El-Sherbiny, S. A. El-Shehawy, Ragab Omarah Al-Seedy:
A matrix approach for the transient solution of an M/M/1/N queue with discouraged arrivals and reneging. Int. J. Comput. Math. 89(4): 482-491 (2012)
2000 – 2009
- 2009
- [j1]Ragab Omarah Al-Seedy, A. A. El-Sherbiny, Shaban A. El-Shehawy, Sherif I. Ammar:
Transient solution of the M/M/c queue with balking and reneging. Comput. Math. Appl. 57(8): 1280-1285 (2009)
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