Results 51 to 60 of about 424 (174)

Prediction of Seabed Scour Induced by Full-Scale Darrieus-Type Tidal Current Turbine

Journal of Marine Science and Engineering, 2019
Scour induced by a Darrieus-type tidal current turbine was investigated by using a joint numerical and experimental method with emphasis on the scour process of a full-scale turbine.
Chong Sun, Wei Haur Lam, Ming Dai, Gerard Hamill   +3 more
doaj   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

New Semiempirical Formula for Evaluating the Equilibrium Scour Depth at Bridge Piers

Journal of Hydraulic Engineering
Estimating the equilibrium scour depth ( y se ) at bridge piers is essential for both bridge foundation design and flood risk assessment. Traditional methods typically rely on empirical formulas derived from data-fitting procedures, which often result in significant overestimations of the local scour phenomenon.
Francesco Giordana, Davide Vettori, Federico Mana, Davide Demichele, Costantino Manes   +4 more
openaire   +2 more sources

Comprehensive Analysis for the Evaluation of Torrential Floods and Slope Stability of River Channels: La China River Area (Colombia)

Journal of Flood Risk Management, Volume 19, Issue 3, September 2026.
Colombia and other tropical regions face a very high threat from torrential floods, which have resulted in over 25,000 deaths in a single event. Unfortunately, there is no comprehensive assessment methodology to zone and determine the magnitude of these disasters; therefore, this research aims to help fill this gap.
Carlos A. Buenahora Ballesteros, Antonio M. Martínez‐Graña, Mariano Yenes   +2 more
wiley   +1 more source

Prediction of scour profiles downstream of grade control structures via the shear stress and sediment bed curvature model

International Journal of Sediment Research
A new semianalytical model for the prediction of local scour profiles downstream from typical grade-control structures is proposed on the basis of the variation in bed shear stress and the sediment bed curvature concept.
Amir H. Azimi
doaj   +1 more source

Viscosity effects on local scour around vertical structures in clear-water conditions

E3S Web of Conferences, 2018
Local scour represents the erosion process that occurs at the base of hydraulic structures overlying sediment beds. Horseshoe vortices forming at the bed-structure junction are the main responsible for sediment removal and dictate erosion rates as well ...
Manes Costantino, Coscarella Francesco, Rogers Ashley, Gaudio Roberto   +3 more
doaj   +1 more source

Estimation of Equilibrium Scour Depth Around Abutments Using Artificial Intelligence

Water
This study compares various machine learning models to determine the method with the highest accuracy rate to predict the equilibrium scour depth of bridge abutments. Unlike in previous studies, hyperparameter optimization is focused on increasing model performance in small datasets, and feature importance ranking is analyzed.
Yusuf Uzun, Serife Yurdagul Kumcu
openaire   +1 more source

Human Stem Cell Transplantation, Immunosuppression, and Noninvasive In vivo Cell Tracking in the Mouse Brain

Current Protocols, Volume 6, Issue 8, August 2026.
Abstract Stem cell therapies have emerged as potential therapeutics of interest for many central nervous system diseases, including stroke, epilepsy, neurodegenerative diseases, and traumatic brain injury. Preclinical models are required to evaluate the migration of transplanted stem cells to various areas of the brain, monitor graft survival to ...
Kevin S. Chen, Kyle J. Loi, Lisa M. McGinley, Osama N. Kashlan, Diana M. Rigan, Shayna N. Mason, Jacquelin F. Kwentus, Andrew D. Carter, Masha G. Savelieff, Eva L. Feldman   +9 more
wiley   +1 more source

Does an Armor Layer Control Clear-Water Scour at Cylindrical Bridge Piers? A Comprehensive Experimental Assessment under Steady and Unsteady Flow Conditions

Journal of Hydrology and Hydromechanics
Local scour at bridge piers is a critical phenomenon jeopardizing structural integrity worldwide. This study presents a comprehensive physical modelling investigation into the evolution of local scour in the presence of a protective armor layer ...
Kabiri-Samani Abdorreza, Fathi Amirhossein, Farooq Rashid   +2 more
doaj   +1 more source

Estimation of Equilibrium Scour Depth Around Abutments by Artificial Intelligence

The estimation of clear water scour depth around bridge piers directly affects the stability and safety of bridge structures. An accurate estimation of equilibrium scour depth (Dse) around bridge abutments is crucial for ensuring structural stability.
Yusuf Uzun, Serife Yurdagül Kumcu
openaire   +1 more source