Výsledky vyhledávání

Akademický článek

Arching mechanism for large span flexible culverts with shallow soil covers

Autor: Nashwa Nabil Soliman, Sherif Adel Yahia Akl, Ahmed Hosny Abdel Rahman, Sherif Ahmed Mourad

Publikováno v: Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-20 (2024)

Abstract Soil-steel composite bridges (SSCBs) use the surrounding soil and the culvert’s flexible corrugated steel thin plates to support vertical loads above the culvert. Existing codes use empirical equations based on field measurements and full-

Externí odkaz: https://doaj.org/article/c7bdcbf6cb434fdc867d6b97c876285e

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Akademický článek

Testing and modeling clay behavior subjected to high strain rate loading in a tunneling problem

Autor: Sherif Adel Yahia Akl, Ahmed Kohail, Mostafa Shazly, Mostafa Abukiefa

Publikováno v: Ain Shams Engineering Journal, Vol 13, Iss 6, Pp 101764- (2022)

Complex numerical simulations of tunnels are often used to model effects of high strain rate surface loads. Most of this modeling ignores soil's strength dependency on strain rate to lessen the complexity. A series of Split Hopkinson Pressure Bar (SH

Externí odkaz: https://doaj.org/article/fcf20392065b47ac845cbe64df53aecb

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Akademický článek

Promoter Methylation of LEP and LEPR before and after Bariatric Surgery: A Cross-Sectional Study

Autor: Julia Wilhelm, Anna Birkenstock, Vanessa Buchholz, Astrid Müller, Sherif Adel Aly, Kerstin Gruner-Labitzke, Hinrich Koehler, Ralf Lichtinghagen, Kirsten Jahn, Adrian Groh, Kai G. Kahl, Martina de Zwaan, Thomas Hillemacher, Stefan Bleich, Helge Frieling

Publikováno v: Obesity Facts, Vol 14, Iss 1, Pp 93-99 (2021)

Introduction: DNA methylation constitutes one important epigenetic mechanism that regulates gene expression in human cells. With regard to obesity, bariatric surgery-induced weight loss has been associated with promoter methylation changes in several

Externí odkaz: https://doaj.org/article/37172850150746afb86114acfcc1f5cb

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Akademický článek

Utilization of Saline Water on the Mechanical Properties for Unbounded Granular Materials

Autor: Sherif Adel El Sharkawy

Publikováno v: ARCHive-SR, Vol 2, Iss 4 (2019)

It is well known that three quarters of the world contain saline water. The saline water contains amounts of salt dissolved in water to a concentration of parts in per millions (ppm) includes sodium chloride, Sodium sulfate and magnesium sulfate. Com

Externí odkaz: https://doaj.org/article/582d138b80a240d0954e0fe6be9d4f5d

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Akademický článek

Analysis of Torque and Force Induced by Rotary Nickel-Titanium Instruments during Root Canal Preparation: A Systematic Review

Autor: Myint Thu, Arata Ebihara, Sherif Adel, Takashi Okiji

Publikováno v: Applied Sciences, Vol 11, Iss 7, p 3079 (2021)

The aim of this review was to provide a detailed literature analysis of torque and force generation during nickel-titanium rotary root canal instrumentation. We followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guid

Externí odkaz: https://doaj.org/article/809db1c6dd91420b9f3a3e42c8039b73

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Akademický článek

52. Cardiac injury in infants with acute gastroenteritis: Is it ischemia or rota associated carditis

Autor: Sana Barakat, Sherif Adel, Rim Harfoush

Publikováno v: Journal of the Saudi Heart Association, Vol 27, Iss 4, Pp 319-320 (2015)

Reports suggested that rotavirus could be found in extra-intestinal tissues including the heart following infection and fatal rotavirus myocarditis has been recently reported in 2 children. We hypothesized that rotavirus may have a direct injurious e

Externí odkaz: https://doaj.org/article/87d2882300ac4800bb2a7295bd15dde4

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