Results 61 to 70 of about 11,592 (141)

Non‐Gaussian Hybrid Transfer Functions: Memorizing Mine Survivability Calculations

open access: yesMathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
Hybrid algorithms and models have received significant interest in recent years and are increasingly used to solve real‐world problems. Different from existing methods in radial basis transfer function construction, this study proposes a novel nonlinear‐weight hybrid algorithm involving the non‐Gaussian type radial basis transfer functions.
Mary Opokua Ansong   +5 more
wiley   +1 more source

An Experimental Study for Radial-Gated Ogee Spillway Discharge and Comparison with Other Model Studies

open access: yesWSEAS Transactions on Fluid Mechanics
The book "Design of Small Dams" is a renowned reference publication used for the design of dams in America and it is commonly used in Turkey as well. Flood spillways of many dams are ogee profile radial-gated weirs, and accurate calculation of discharges
T. Haktanır, Erol Bor
semanticscholar   +1 more source

Weighed Nonlinear Hybrid Neural Networks in Underground Rescue Mission

open access: yesInternational Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
In our previous work, a novel model called compact radial basis function (CRBF) in a routing topology control has been modelled. The computational burden of Zhang and Gaussian transfer functions was modified by removing the power parameters on the models. The results showed outstanding performance over the Zhang and Gaussian models.
Hongxing Yao   +6 more
wiley   +1 more source

A Study of pressure fluctuation caused by hydraulic jump in stilling basin [PDF]

open access: yesمهندسی منابع آب, 2018
A stilling basin is one of the energy dissipaters downstream of a spillway. The place of maximum pressure caused by jet impact and the effect of various factors on the amount and location of pressure are important factors in designing of stilling basin ...
mahsa otoufat shoar, zahra ghadampour
doaj  

Blockage of driftwood and resulting head increase upstream of an ogee spillway with piers

open access: yesSustainable and Safe Dams Around the World, 2019
Accumulations of floating debris in reservoirs can have negative impacts on the safe operation of a dam. Thus, adequate spillway design in view of driftwood is of paramount importance.
Paloma Furlan   +3 more
semanticscholar   +1 more source

Advanced hybrid techniques for predicting discharge coefficients in ogee-crested spillways: integrating physical, numerical, and machine learning models

open access: yesEnvironmental Research Communications
The primary objective of this work was to examine the flow characteristics over an ogee spillway using both a numerical model and the Machine Learning (ML) approach.
Le Thi Thu Hien   +2 more
doaj   +1 more source

Laboratory Study of Hydraulic Performance of Ogee Spillway and Downstream Canal with Axial Arc

open access: yesمجله آب و خاک, 2016
Introduction: Weirs are one of the common structures for discharge and flow measurement. Therefore,these types of hydraulic structures depending on the purposeofuse havedifferent shapes.
T. Eshrati   +3 more
doaj   +1 more source

Numerical and experimental models applied to an ogee crest spillway and roller bucket stilling basin

open access: yesRBRH, 2020
Traditionally, reduced physical models are used to allow control, instrumentation and experimental evaluation of flow. More recently, computational fluid dynamics (CFD) has emerged as a tool that allows numerical modeling of flows and can complement the ...
Vitor Hugo Pereira de Morais   +2 more
doaj   +1 more source

Experimental repetitions and blockage of large stems at ogee crested spillways with piers [PDF]

open access: yesJournal of Hydraulic Research, 2018
Large wood is often transported by rivers into reservoirs during heavy rainfall events. When a critical section like a spillway is blocked and discharge capacity reduced, an uncontrolled increase o...
Paloma Furlan   +4 more
openaire   +2 more sources

CFD-Based Modeling for Computing Discharge Coefficient of an Ogee Spillway

open access: yes, 2023
The basic functionality of the spillway is to control the flow and safely convey the excess flow while keeping the structure stable. An ogee spillway is commonly used due to its high discharging capacity. The discharge coefficient of an ogee spillway is greatly affected by the ratio of an operating head and design head.
Gautam, Hariom   +2 more
openaire   +2 more sources

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