Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Hossein Afzalimehr"'
Autor:
Nasim Rismani, Hossein Afzalimehr, Seyed-Amin Asghari-Pari, Mohammad Nazari-Sharabian, Moses Karakouzian
Publikováno v:
Water, Vol 16, Iss 15, p 2162 (2024)
River meanders and channel curvatures play a significant role in sediment motion, making it crucial to predict incipient sediment motion for effective river restoration projects. This study utilized an artificial intelligence method, multiple linear
Externí odkaz:
https://doaj.org/article/4fa20015900b48aa8456b65051256141
Publikováno v:
محیط زیست و مهندسی آب, Vol 9, Iss 2, Pp 271-285 (2023)
Flow resistance in rivers with vegetation patches is one of the challenging parameters in river engineering. This study aimed to investigate the effect of vegetation patches on flow resistance in Shapur, Fahlian, and Dalaki rivers. The data measured
Externí odkaz:
https://doaj.org/article/e5a8b4f20cf34f64b970de5c7c88ae67
Publikováno v:
Engineering, Technology & Applied Science Research, Vol 13, Iss 3 (2023)
This study aims to evaluate the hydrogeochemistry of aquifers in Fars province, Iran, from 2007 to 2017 and assess the groundwater’s suitability for drinking and agricultural uses. A total of 35,000 samples were collected from wells and qanats acro
Externí odkaz:
https://doaj.org/article/c8eb5c5b1a334756b8b62eb5735e285d
Autor:
Zohra Mozafari, Roohollah Noori, Seyed Mostafa Siadatmousavi, Hossein Afzalimehr, Jafar Azizpour
Publikováno v:
GeoHealth, Vol 7, Iss 5, Pp n/a-n/a (2023)
Abstract The world's large lakes and their life‐supporting services are rapidly threatened by eutrophication in the warming climate during the Anthropocene. Here, MODIS‐Aqua level 3 chlorophyll‐a data (2018–2021) were used to monitor trophic
Externí odkaz:
https://doaj.org/article/18c360af53124bc78218e2ba9088462e
Autor:
Afsaneh Rezaie, Hossein Afzalimehr, Sina Sohrabi, Mohammad Nazari-Sharabian, Moses Karakouzian, Reza Ahmadi
Publikováno v:
Fluids, Vol 8, Iss 12, p 306 (2023)
Bridge abutments in river channels induce local scour. Recent research indicates that introducing roughness elements on the surface of the bridge abutments can influence the flow pattern around the abutment, reducing the intensity of eddies and diver
Externí odkaz:
https://doaj.org/article/8da490ef018d46899d0fc66ed2ba37c8
Publikováno v:
Water, Vol 15, Iss 20, p 3691 (2023)
This experimental study aims to investigate the characteristics of turbulent flow in channels with vegetated banks and varying channel width under the condition of the incipient motion of bed material. The natural reeds were used as emergent vegetati
Externí odkaz:
https://doaj.org/article/c8a197347a814009958a5b9b9896da64
Publikováno v:
Engineering, Technology & Applied Science Research, Vol 13, Iss 1 (2023)
The prediction of operational freeboard in irrigation canals is a complicated issue, particularly when the cumulative effects of time-dependent factors, such as maloperation and concrete aging, are considered. While most classic approaches consider a
Externí odkaz:
https://doaj.org/article/3f7fffee7f764b97912f3530bee93fc3
Autor:
Hossein Afzalimehr, Jueyi Sui
Publikováno v:
Water, Vol 15, Iss 16, p 2907 (2023)
In many semi- and arid regions, water does not flow from middle spring to early fall, leading to the development of vegetation patches with irregular distribution on channel beds and banks [...]
Externí odkaz:
https://doaj.org/article/881416ca217844f1b3999764c4316139
Publikováno v:
Water, Vol 15, Iss 13, p 2435 (2023)
Vegetation in rivers and streams plays an important role in preventing erosion and improving bank stability. Comparison between emergent vegetation (bank vegetation) and submerged vegetation, in terms of velocity and Reynolds stress distributions, fo
Externí odkaz:
https://doaj.org/article/2431b7de44144f7c9ff39cfcf461086b
Publikováno v:
Water, Vol 15, Iss 12, p 2170 (2023)
The flow in arid and semi-arid regions changes significantly during seasons, letting many vegetation patches develop in different parts of rivers. In the presence of aquatic plants in streams, different flow structures have resulted. When the water l
Externí odkaz:
https://doaj.org/article/46de7f8aa1af4a64971cb15d47d5b8aa