Results 71 to 80 of about 1,172 (264)

Jet Flow on Stepped Spillways [PDF]

open access: yesJournal of Hydraulic Engineering, 1995
The authors provided interesting data on stepped spillway flows. The writer would like to add some information on flow resistance of skimming flows and discuss the energy dissipation on stepped chutes. It will be shown that the author's results are not dissimilar with results previously obtained by other researchers (table A1).
openaire   +3 more sources

Farmers' Preferences for Gene Editing Crops and Influencing Factors

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Gene editing (GE) is gaining momentum worldwide, but limited data on UK farmers' preferences hinders our understanding of its potential impact amid deregulation debates. Based on a survey of 200 English arable farmers, we employ a Latent Class Analysis and Multinomial Logit regressions to investigate current preferences for GE crops.
Bertolozzi‐Caredio Daniele   +1 more
wiley   +1 more source

Experimental Investigation of Energy Dissipation over Uniform and Non-uniform Steppes Spillway with Different Baffle Block Distribution

open access: yesCivil and Environmental Engineering
The stepped spillway is a hydraulic structure that uses steps to decrease the energy in the stilling basin, which can reduce the cost of maintenance and repair of the hydraulic structure that results from scouring issues.
Hussein Noor S.   +2 more
doaj   +1 more source

Dynamic Pressure Fluctuations in Stepped Three-Side Spillway [PDF]

open access: yesIranica Journal of Energy and Environment, 2012
One type of outlet works in dams are Three-side spillways that despite of their hydraulic limitations and construction problems, they were being selected, in storage dams, as best option under specific topographical conditions. Considerable energy losses
Hamed Taghizadeh   +2 more
doaj  

Experimental and numerical simulation of flow over stepped spillways

open access: yesApplied Water Science, 2018
Stepped spillways are used in the construction of dams, river engineering and soil conservation projects. Energy dissipation in this structure due to the presence of several steps is high, so the construction costs for stilling basin are reduced.
Farzin Salmasi, Aylar Samadi
doaj   +1 more source

Hydraulic Design of Stepped Spillways

open access: yesJournal of Hydraulic Engineering, 2003
An experimental study on a large model flume using fiber-optical instrumentation indicated that the onset of skimming flow is a function of critical depth, chute angle, and step height. Uniform mixture depths that determine the height of chute sidewalls and uniform equivalent clear water depths are described in terms of a roughness Froude number ...
Boes, Robert M., Hager, Willi H.
openaire   +2 more sources

Human‐in‐the‐Loop Swarms: A Bionic Swarm Approach to Real‐World Soil Mapping

open access: yesAdvanced Intelligent Systems, EarlyView.
This article introduces the “Bionic Swarm,” a novel system that lowers the barriers to real‐world swarm validation by abstracting difficult hardware tasks to app‐guided human agents. We demonstrate the system's utility through the experimental validation of a geotechnical soil‐mapping swarm algorithm and show superior performance to baseline approaches
Petras Swissler   +5 more
wiley   +1 more source

Dimensionless Equations for Hydraulic Jump Stilling Basins Downstream of Gabion Stepped Chutes [PDF]

open access: yesJournal of Hydraulic Structures
Flows in stepped chutes built with gabions have been studied for about four decades and have found applications mainly in small dams and drainage systems.
André Simões   +6 more
doaj   +1 more source

Developed log-wake law and turbulent behaviour of flow along a stepped spillway [PDF]

open access: hybrid, 2023
Panaitep Pongcharoenpit   +2 more
openalex   +1 more source

Hydraulic design of stepped spillways

open access: yes, 2002
Roller Compacted Concrete (RCC) is becoming an increasingly popular method of constructing and protecting dam embankments. RCC naturally lends itself to a stepped configuration by the construction technique of roller compacting successive horizontal concrete lifts. To date, there have been numerous RCC stepped spillways constructed worldwide, yet there
Ward, Jason Paul, author   +4 more
openaire   +2 more sources

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