Results 1 to 10 of about 1,575,779 (255)

Effects of Betaine Supplementation on Live Performance, Selected Blood Parameters, and Expression of Water Channel and Stress-Related mRNA Transcripts of Delayed Placement Broiler Chicks [PDF]

open access: yesFrontiers in Veterinary Science, 2021
This study examined the effect of supplemental betaine on live performance, selected blood parameters, and gene expression of water channel proteins (Aquaporins, AQP) of broiler chicks delayed in placement for 48 h post-hatch. In total, 540 newly-hatched
Ahmed Abdulaziz Al-Sagan   +8 more
doaj   +2 more sources

Impact of box section coverage on the hydraulic parameters of open channels

open access: yesWater Practice and Technology, 2022
The effects of box coverage blockage on the hydraulic characteristics of open channels within the case of sub-critical flow in the open channel were explored experimentally in research.
Emam A. Osman, Zahraa Taha
doaj   +1 more source

Using side flow jets as a scour countermeasure downstream of a sluice gate

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2021
Background Local scour is one of the main problems affecting the stability and operation of control hydraulic structures. Many techniques were used to control the resulting scour.
Mohamed S. Abdelmoaty, Mahmoud Zayed
doaj   +1 more source

Flooding Analysis for Alluvial River Based on the Balance between Flood Control and Floodplain Development

open access: yesGuan'gai paishui xuebao, 2022
【Background】 Floodplain is the ecological cradle of alluvial rive to provide a buffer to flooding. Rivers naturally function to transport runoff and sediment, making the river have the double section characteristics of river trough and beach to meet the ...
XUE Hai   +5 more
doaj   +1 more source

Unsteady Flow in Diffusion Section at the Outlet of Large Water Conveyance Tunnel

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 The inverted siphon tunnel in big long-distance open channel spanning across a river is a critical hydraulic infrastructure. Investigating the mechanisms and strategies for addressing the unsteady flow during transition from the pressurized ...
LIU Mingxiao   +5 more
doaj   +1 more source

Research on the influential characteristics of asymmetric wind fields on typhoon waves

open access: yesFrontiers in Marine Science, 2023
The East China Sea is an ocean region with frequent typhoons, typhoons are also the main reason for inducing typhoon waves. The complexity of typhoon waves is closely related to the complexity of typhoon wind field.
Yan Wu   +5 more
doaj   +1 more source

Evolution and drivers of secondary suspended rivers in typical wandering sections of the lower Yellow River from 1960–2021

open access: yesFrontiers in Ecology and Evolution, 2023
The secondary suspended river increases the probability of the occurrence of “Heng river”, “Xie river” and “Gun river” in the lower Yellow River, and is the main factor threatening the safety of human life and property in the Yellow River levee and beach
Linjuan Xu   +8 more
doaj   +1 more source

Manning roughness coefficient in vegetated open channels

open access: yesWater Science, 2020
Manning equation is one of the most common equations used in estimating the mean velocity and discharge in open channels. The equation depends on some measured hydraulic parameters as water surface slope and hydraulic radius of open channel cross-section
Mohamed Salah Abd Elmoaty   +1 more
doaj   +1 more source

Effect of rigid, bank vegetation on velocity distribution and water surface profile in open channel

open access: yesWater Practice and Technology, 2022
The effects of rigid ditch bank vegetation on velocity distribution and water surface profile in trapezoidal open channels were investigated. Forty-eight tests were used to study the impacts of different vegetation densities.
Ola Mohamed Eraky   +3 more
doaj   +1 more source

Economic study for the impact of establishing water users associations in the improved areas – case study: El-Atf canal – Egypt

open access: yesWater Practice and Technology, 2022
Water users associations (WUAs) were established in Egypt to help in rational distribution of irrigation water, in the operation and the maintenance of the improved Mesqas, and in solving the disputes between farmers.
Abd El Magid H. A. Abd El Maksoud   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy