Results 71 to 80 of about 38,808 (290)

Influence of scour depth and flow velocity field on large-diameter pier group pile foundations

open access: yesFrontiers in Marine Science
Sea-crossing bridges face critical challenges due to scour, which can destabilize foundations. This study investigates the scour characteristics of the large-diameter main pier of the Haiwen Bridge, with a pile diameter of 4.3 meters. Seabed changes were
Junfeng Shi   +4 more
doaj   +1 more source

3D numerical modelling of scour around a jacket structure with dynamic free surface capturing

open access: yes, 2020
This paper presents a numerical investigation of local scour with dynamic free surface capturing around a jacket structure. The hydrodynamics and resulting scour are calculated using the open-source CFD model REEF3D.
N. Ahmad, A. Kamath, H. Bihs
semanticscholar   +1 more source

Effect of Bridge Pier Shape on Depth of Scour

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Scour at bridge piers is a common problem in infrastructure engineering, as local scour around bridge piers is one of the most common causes of bridge failure. Prediction of the maximum depth of local scour thus plays an important role in ensuring safety
H. K. Jalal, W. Hassan
semanticscholar   +1 more source

Decoding Emotional Signatures of Ethical Ads: An Analysis of Actor‐Viewer Synchrony

open access: yesJournal of Consumer Behaviour, EarlyView.
ABSTRACT We examine whether ethical advertisements differ from conventional ads in their on‐screen emotional signatures and whether those signatures transfer to actor‐viewer synchrony. Study 1 analyses 138 professionally produced YouTube ads using Automated Facial Expression Recognition (AFER) and Convolutional Neural Networks (CNN) to quantify actor ...
Vik Naidoo, Nicolas Hamelin
wiley   +1 more source

Laboratory Study of Local Scour Around an Array of Pile Groups in Clear-Water Scour Conditions

open access: yesJournal of Marine Science and Engineering
Current-induced local scour around pile groups weakens the capacity of structures. In this paper, experimental tests of local scour around an array of 5 × 5 pile groups were conducted in a steady current in a hydraulic flume.
Ming Gong   +7 more
doaj   +1 more source

Modeling of local scour depth downstream hydraulic structures in trapezoidal channel using GEP and ANNs

open access: yesAin Shams Engineering Journal, 2013
Local scour downstream stilling basins is so complex that it makes it difficult to establish a general empirical model to provide accurate estimation for scour depth. Lack estimation of local scour can endanger to stability of hydraulic structure and can
Yasser Abdallah Mohamed Moussa
doaj   +1 more source

A Critical Review on Catalytic Regeneration of Amine Solutions for Energy‐Efficient CO2 Capture

open access: yesCarbon and Hydrogen, EarlyView.
This review summarizes recent progress in acid‐catalyzed regeneration of CO2‐rich amine solutions. It highlights catalyst performance, mechanisms, and data‐driven design, aiming to bridge fundamental research with engineering practice for energy‐efficient carbon capture.
Qiyue Zhao   +5 more
wiley   +1 more source

On the influence of apron and cutoff wall configurations on scour protection downstream grade control structures

open access: yesResults in Engineering
Local scour downstream of hydraulic structures poses a major challenge in fluvial engineering, often compromising the stability of river control systems. Falling and impinging jets from Grade Control Structures (GCSs) are key contributors to cavity scour
Hossein Mohammadnezhad   +2 more
doaj   +1 more source

Drive-by scour monitoring of railway bridges using a wavelet-based approach

open access: yesEngineering structures, 2019
This paper numerically investigates the feasibility of using bogie acceleration measurements from a passing train to detect the presence of bridge scour.
P. Fitzgerald   +4 more
semanticscholar   +1 more source

Waste activated sludge high‐rate treatment of septage: Biodegradability studies and contact phase trials towards a cleaner environment

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The waste activated sludge high‐rate (WASHR) process, developed in our previous study, is used for septic wastewater treatment. This high‐rate contact stabilization pre‐treatment uses typical waste streams found in wastewater treatment plants to reduce a portion of the loadings on the main treatment trains.
Arman Shirali   +2 more
wiley   +1 more source

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