Genotyping-by-sequencing provides new genetic and taxonomic insights in the critical group of Centaurea tenorei. [PDF]
Front Plant Sci, 2023 De Luca D +4 more
europepmc +1 more source
Discharge Characteristics of Piano Key Side Weirs
Side weirs are important hydraulic structures that divert discharge from a primary channel to a diversion channel. Most of the studies carried out so far focus on linear rectangular and labyrinth side weirs. Sparse work has been performed on the piano key side weir. In this paper, a Computational Fluid Dynamics (CFD) based numerical study was conducted
Hussain, Sabir +2 more
openaire +2 more sources
Modified discharge capacity calculation method for piano key weirs
Water Science & TechnologyABSTRACT Due to the numerous geometric parameters and complex hydraulic behaviors of piano key weirs (PKWs), accurately estimating their discharge capacity remains challenging without in-depth experimental studies or computational modeling. This study compares and analyzes recent discharge equations and develops new relationships between
Zhiqi Cheng, QianKe Xu, Xiaolong He
openaire +2 more sources
Laboratory and Numerical Study of Hydraulic Loss and Discharge Coefficient in Rectangular Labyrinth and Piano Key Weirs [PDF]
علوم آب و خاکthe impact of hydraulic loss on the performance of weirs should not be overlooked. In this study, a laboratory flume measuring 8 meters in length, 0.6 meters in width, and 0.6 meters in height was used to investigate the hydraulic loss of the weirs and ...
R. Ghasemi Ghasemvand +3 more
doaj
A comparative analysis of the energy dissipation efficiency of various piano key weir types
Open EngineeringWater levels in main or sub-channels can be controlled and regulated with the help of weirs. Piano key weirs (PKWs), a type of non-linear weir, include side crests, as well as front and back crests.
Alghazali Najm O. S., Musa Taghreed A.
doaj +1 more source
Emotion and expertise: how listeners with formal music training use cues to perceive emotion. [PDF]
Psychol Res, 2022 Battcock A, Schutz M.
europepmc +1 more source
Effect of Flow Splitters on Energy Loss in C-Type Piano Key Weirs
Journal of Engineering and Sustainable DevelopmentPiano key weirs (PKWs) are a new type of labyrinth weirs. They have a longer crest length within a limited width and, unlike linear weirs, ultimately have a higher discharge coefficient. The higher energy loss in PKWs can reduce scour.
Amirhossein Fathi +3 more
doaj +1 more source
Journal of Hydrology and HydromechanicsIn this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and ...
Bodaghi Elnaz +2 more
doaj +1 more source
Using Binary Tree Algorithms to Predict a Discharge Coefficient of the Type-A Piano Key Weir
Journal of Engineering and Sustainable DevelopmentType-A PKW is a type of spillway with inlet and outlet keys connected in a zigzag. The survey shows that previous studies on the flow over PKW mainly focused on establishing empirical equations to calculate Cd.
Nguyen Minh Ngoc +4 more
doaj +1 more source
Experimental Study of Flow over the Triangular Side Weir with Inclined Crest in Subcritical Flow [PDF]
علوم آب و خاکSide weirs are hydraulic structures employed in irrigation and drainage channels as diversion devices or head regulators. The increasing efficiency of the structure of side weirs for constant head has been one of the concerns of researchers in the last ...
M. Neisi +3 more
doaj