Zobrazeno 1 - 10
of 191
pro vyhledávání: '"A. A. EL-Helbawy"'
Autor:
Aisha Fayomi, Asmaa A. Ahmed, Neama T. AL-Sayed, Sara M. Behairy, Asmaa M. Abd AL-Fattah, Gannat R. AL-Dayian, Abeer A. EL-Helbawy
Publikováno v:
Symmetry, Vol 16, Iss 9, p 1251 (2024)
In lifetime tests, the waiting time for items to fail may be long under usual use conditions, particularly when the products have high reliability. To reduce the cost of testing without sacrificing the quality of the data obtained, the products are e
Externí odkaz:
https://doaj.org/article/b970993fa3d14f6d9650cfd6db222ce2
Autor:
Zakiah I. Kalantan, Sulafah M. S. Binhimd, Heba N. Salem, Gannat R. AL-Dayian, Abeer A. EL-Helbawy, Mervat K. Abd Elaal
Publikováno v:
Axioms, Vol 13, Iss 8, p 531 (2024)
In this paper Chen-Burr XII distribution is constructed and graphical description of the probability density function, hazard rate and reversed hazard rate functions of the proposed model is obtained. Also, some statistical characteristics of the Che
Externí odkaz:
https://doaj.org/article/e9528d29606740d7a1d381fd3de879e8
Autor:
Zakiah I. Kalantan, Eman M. Swielum, Neama T. AL-Sayed, Abeer A. EL-Helbawy, Gannat R. AL-Dayian, Mervat Abd Elaal
Publikováno v:
Symmetry, Vol 16, Iss 8, p 981 (2024)
Abstract: This paper is concerned with applying the Bayesian and E-Bayesian approaches to estimating the unknown parameters of the modified Topp–Leone–Chen distribution under a progressive Type-II censored sample plan. The paper explores the comp
Externí odkaz:
https://doaj.org/article/4e6161c819554e43870f90d1bbf00361
Autor:
El-Monier, S Y1 (AUTHOR), El-Helbawy, A S2 (AUTHOR) abdelaziz_samir@hotmail.com, Elsayed, Moamen M2 (AUTHOR), Saad, M3 (AUTHOR)
Publikováno v:
Pramana: Journal of Physics. Mar2024, Vol. 98 Issue 1, p1-11. 11p.
Akademický článek
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Publikováno v:
Symmetry, Vol 16, Iss 6, p 659 (2024)
This paper introduces a new four-parameter additive model, named xgamma-Burr XII distribution, by considering two competing risks: the former has the xgamma distribution and the latter has the Burr XII distribution. A graphical description of the xga
Externí odkaz:
https://doaj.org/article/d6f6290713a44a0281ae0a2276f54c5e
Publikováno v:
Egyptian Journal of Chest Disease and Tuberculosis, Vol 72, Iss 4, Pp 559-564 (2023)
Background Obstructive sleep apnea (OSA) is a prevalent sleep disordered breathing in geriatrics but still frequently undiagnosed. Sleep architecture changes with ageing. Geriatrics spend more time in the N1, N2 than in N3, REM. Also, there are more
Externí odkaz:
https://doaj.org/article/f7229319755240ae97854d69a7551c71
Publikováno v:
Egyptian Journal of Chest Disease and Tuberculosis, Vol 72, Iss 1, Pp 80-85 (2023)
Background Diaphragm is a necessary respiratory muscle. In cases with pleural effusion, abnormal diaphragmatic functions may be observed. Thoracic ultrasound is a simple, accurate, and noninvasive method to investigate the relation between the quanti
Externí odkaz:
https://doaj.org/article/7eeb9363289a45beae3cf7b22f9863c6
Publikováno v:
Egyptian Journal of Chest Disease and Tuberculosis, Vol 72, Iss 3, Pp 412-419 (2023)
Background Women may have a wide range of symptoms in the menopausal period, which includes vasomotor, mood changes, and disturbances of sleep. Disturbance of sleep leads to adverse health problems with poor quality of life. This study researched the
Externí odkaz:
https://doaj.org/article/dae9fcae4397498d9363f3b3ee5143c0
Publikováno v:
Egyptian Journal of Chest Disease and Tuberculosis, Vol 72, Iss 2, Pp 225-230 (2023)
Background Transthoracic ultrasound (US) is useful in the evaluation of a wide range of peripheral, parenchymal, pleural, and chest-wall diseases. Aim To evaluate the role of chest US in the diagnosis of peripheral thoracic lesions. Patients and meth
Externí odkaz:
https://doaj.org/article/0899d33d4fc64a8e958cc5f200b2b7de