Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Manousos Valyrakis"'
Autor:
Zaka Ullah Khan, Afzal Ahmed, Manousos Valyrakis, Ghufran Ahmed Pasha, Rashid Farooq, Nadir Murtaza, Diyar Khan
Publikováno v:
Water, Vol 16, Iss 17, p 2550 (2024)
Abutment scour is a major cause of bridge failures worldwide, leading to disruptions, economic losses, and loss of life. The present experimental study examines countermeasures against abutment scour using hooked-collar protections on vertical-wall a
Externí odkaz:
https://doaj.org/article/d81f3de5c4d14dc5b0fc8511c3daedfa
Autor:
Afzal Ahmed, Manousos Valyrakis, Abdul Razzaq Ghumman, Muhammad Arshad, Ghufran Ahmed Pasha, Rashid Farooq, Shahmir Janjua
Publikováno v:
CivilEng, Vol 5, Iss 2, Pp 501-501 (2024)
In the original publication [1], there were two mistakes in relation to the cited references (within the References section) as follows:Reference 52 (Xin-gang et al [...]
Externí odkaz:
https://doaj.org/article/150c8378cb994becbe71c04a60381625
Publikováno v:
Water, Vol 16, Iss 8, p 1098 (2024)
This study presents results from an experimental campaign to explore how different riparian zone characteristics may facilitate the transport or capturing of plastics floating through the fluvial system. Specifically, following field observations for
Externí odkaz:
https://doaj.org/article/853eb8c9763f415a9a8d618810bb85cb
Autor:
Afzal Ahmed, Manousos Valyrakis, Abdul Razzaq Ghumman, Muhammad Arshad, Ghufran Ahmed Pasha, Rashid Farooq, Shahmir Janjua
Publikováno v:
CivilEng, Vol 3, Iss 4, Pp 895-908 (2022)
Water scarcity is a major issue for developing countries due to the continuous increase in population every year, the major environmental challenges faced by developing countries such as Pakistan being the scarcity of water. One proposed solution to
Externí odkaz:
https://doaj.org/article/f4456081174a4f428b22b8850b7cd5f2
Autor:
Shees Ur Rehman, Afzal Ahmed, Gordon Gilja, Manousos Valyrakis, Abdul Razzaq Ghumman, Ghufran Ahmed Pasha, Rashid Farooq
Publikováno v:
Water, Vol 16, Iss 1, p 124 (2023)
Nature-based solutions (NBSs) always provide optimal opportunities for researchers and policymakers to develop sustainable and long-term solutions for mitigating the impacts of flooding. Computing the hydrological process in hilly areas is complex co
Externí odkaz:
https://doaj.org/article/8be8386d7af74041aa014b17d7c48529
Autor:
Khaldoon AlObaidi, Manousos Valyrakis
Publikováno v:
Applied Sciences, Vol 13, Iss 19, p 10656 (2023)
Incipient motion has been a topic of investigation by researchers, engineers and scientists for more than a century. The main approach for studying sediment entrainment has been the static approach that uses temporal and spatial averaged flow paramet
Externí odkaz:
https://doaj.org/article/ff95c5e39db1445a9fc0fac0e5aabaa9
Publikováno v:
Fluids, Vol 8, Iss 7, p 199 (2023)
High-frequency velocimeters used for flow measurements during laboratory experiments allow the user to select the range for several operation parameters to set up the instrument for optimal velocity measurement. The discrepancies between velocity mea
Externí odkaz:
https://doaj.org/article/b3f2ef9776094703bccb04867666104e
Autor:
Umut Türker, Manousos Valyrakis
Publikováno v:
Water Supply, Vol 21, Iss 4, Pp 1423-1437 (2021)
The aim of this study was to assess and quantify the effect of channel bed roughness on hydraulic jumps based on sound physical theories. Assuming that integrated bed shear stress due to surface roughness changes linearly with supercritical velocity,
Externí odkaz:
https://doaj.org/article/c155c34cdff74a9da24c68da12c5ce27
Autor:
Afzal Ahmed, Manousos Valyrakis, Abdul Razzaq Ghumman, Rashid Farooq, Ghufran Ahmed Pasha, Shahmir Janjua, Ali Raza
Publikováno v:
Hydrology, Vol 10, Iss 3, p 73 (2023)
This study examines the impact of upstream structures on the bulk drag coefficient of vegetation through experimental means, which has not been previously conducted. An embankment model was placed upstream of the vegetation, both with and without a m
Externí odkaz:
https://doaj.org/article/91c729807ffc4564b86942db7761ceaa
Autor:
Zaid Alhusban, Manousos Valyrakis
Publikováno v:
International Journal of Energetica, Vol 5, Iss 1, Pp 01-06 (2020)
A new method is introduced by using high precision accelerometer and gyroscope micro-electromechanical sensors (MEMS), which can record Lagrangian observations of sediments and shed light into the dynamics of sediment transport processes at above thr
Externí odkaz:
https://doaj.org/article/93386abd0cbd42aaa7615009924e8eff