Results 41 to 50 of about 300 (179)

Experimental and Simulation Studies on Water Discharge Coefficients of Rectangular Piano Key Weirs

open access: yesInternational Journal of Technology, 2022
The piano key weir (PKW) is a developed type of labyrinth spillway with the ability to transfer large amounts of discharge by keeping executive costs constant.
Vafa Rezaei   +3 more
doaj   +1 more source

Performance Advantages of Labyrinth Weir

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2019
Weir is a very common structure across water courses to control flow and to release surplus water from water bodies. Simple straight weirs are less efficient compared to labyrinth weir where the weir length is increased by folds. In this research, experiments were conducted in the laboratory to find the increase in discharge due to labyrinth or ...
openaire   +1 more source

Plant Cognition—A Methodological Primer: Theories, Methods and Challenges

open access: yesPhilosophy Compass, Volume 20, Issue 12, December 2025.
ABSTRACT Part I: What counts as cognition, and how can it be studied in organisms without nervous systems? The emerging field of plant cognition confronts these questions by integrating philosophy, plant science and comparative psychology. This article provides a methodological primer on the field.
Miguel Segundo‐Ortin   +3 more
wiley   +1 more source

Into the Deep: Origins and Evolution of Northeastern Pacific Ocean Tuna (Thunnus spp.) Fisheries

open access: yesFish and Fisheries, Volume 26, Issue 6, Page 1164-1179, November 2025.
ABSTRACT People have had a profound influence on Earth's biodiversity for millennia, culminating in Anthropocene environmental degradation and the modern biodiversity crisis. While the scale and extent of people's long‐term influence on Earth's biodiversity in terrestrial and nearshore marine ecosystems are relatively well studied, there are ...
Torben C. Rick   +5 more
wiley   +1 more source

Comparison of Hydraulic Efficiency of Arched Non-linear Weirs in Plan Using GEP and SVM Neural Networks [PDF]

open access: yesعلوم آب و خاک, 2023
Non-linear weirs meanwhile economic advantages, have more passing flow capacity than linear weirs. These weirs have higher discharge efficiency with less free height upstream compared to linear weirs by increasing the length of the crown at a certain ...
M. Majedi Asl   +3 more
doaj  

Evaluation the Hydraulic Aspects of Stepped Labyrinth Spillway [PDF]

open access: yesEngineering and Technology Journal, 2014
This study was adopted a new concept to enhance performance of stepped spillway towards more dissipation of kinetic energy along chute face through increases interlocking surface areas between the mainstream and trapping cavity recirculation vortices on ...
Jaafar Sadeq Maatooq, Taha Yaseen Ojaimi
doaj   +1 more source

Repeatable Genomic Outcomes Along the Speciation Continuum: Insights From Pine Hybrid Zones (Genus Pinus)

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Hybridization is a widespread evolutionary process and a key source of evolutionary novelty. Despite intensive study, the extent to which hybridization is deterministic and repeatable, particularly in recurrent contact events involving the same species under varying ecological conditions, remains unclear. Here, we investigated three replicated
Bartosz Łabiszak   +2 more
wiley   +1 more source

Prediction of discharge coefficient of triangular labyrinth weirs using Adaptive Neuro Fuzzy Inference System

open access: yesAlexandria Engineering Journal, 2018
In this paper, the discharge coefficient of triangular labyrinth weir was predicted using multi-layer perceptron (MLP) neural network and Adaptive Neuro Fuzzy Inference System (ANFIS). To this purpose, 223 related dataset were collected.
Amir Hamzeh Haghiabi   +2 more
doaj   +1 more source

Tracking Long‐Term Trends in Sockeye Salmon (Oncorhynchus nerka) Population Dynamics Using Sterol and Stanol Biomarkers in Lake Sediments

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 9, September 2025.
Abstract We analyzed biomarkers, including sterols, stanols, and δ15N, in sediment cores from lakes with well‐documented sockeye salmon return histories. Our goal was to improve estimates of past changes in salmon escapement, that is, the population that return to their freshwater nursery lakes, inferred using sediment biogeochemical markers ...
D. Dagodzo   +5 more
wiley   +1 more source

Dimensional analysis and stage-discharge relationship for weirs: a review

open access: yesJournal of Agricultural Engineering, 2017
Deducing the weir flow stage-discharge relationship is a classical hydraulic problem. In this regard Buckingham’s theorem of dimensional analysis can be used to find simple and accurate formulas to obtain the rating curves of different weir types.
Mohammad Bijankhan, Vito Ferro
doaj   +1 more source

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