Results 51 to 60 of about 1,273,389 (268)

A CNN deep learning approach to scour depth estimation around complex bridge piers in steady flow environments

open access: yesAdvances in Bridge Engineering
Scour around complex bridge piers (CBP) caused by sediment erosion due to steady flow is a critical challenge in hydraulic engineering, often leading to structural instabilities and failures.
Ngoc-Thi Huynh   +4 more
semanticscholar   +1 more source

Checking the Accuracy of Selected Formulae for both Clear Water and Live Bed Bridge Scour

open access: yesJournal of Engineering, 2023
Due to severe scouring, many bridges failed worldwide. Therefore, the safety of the existing bridge (after contrition) mainly depends on the continuous monitoring of local scour at the substructure.
Huda Rasool, Thamer A. Mohammed
doaj   +1 more source

Predictionof bridge pier compression scour in lower reaches of Yangtze River

open access: yesShuili Shuiyun Gongcheng Xuebao, 2019
The riverbed variation caused by the construction of bridges can be divided into the compression scour and local scour. Compared with the local scour, there are few studies on the compression scour.
CHEN Shu   +4 more
doaj   +1 more source

Local scour around a bridge pier under ice-jammed flow condition – an experimental study

open access: yesJournal of Hydrology and Hydromechanics, 2021
The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun   +5 more
doaj   +1 more source

Predicting maximum scour depth around bridge abutment using M5 model [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
Scour around piers and abutments leads to a lot of bridge failures. Scouring around the bridge piers and abutments is one of the most important factors in bridge failure which happens over time and increases during floods, probably causing general damage
Javad Zahiri, Seyed Mahmood Kashefipour
doaj   +1 more source

Scour Development Around an Oblong Bridge Pier: A Numerical and Experimental Study

open access: yesWater, 2023
The complex flow structure around bridge piers is challenging for both experimental and numerical studies. Therefore, investigating the capabilities of Computational Fluid Dynamics (CFD) tools in resolving the flow structure and the mechanism of sediment
A. M. Bento   +3 more
semanticscholar   +1 more source

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

open access: yesAdvanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao   +6 more
wiley   +1 more source

Mechanical plaque removal in step‐1 of care

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Maintaining a regular oral hygiene routine is essential for taking care of our mouths, ensuring healthy teeth, and achieving fresh breath. Patient education on oral hygiene is an important component of their overall treatment. Firstly, patients should be informed about the direct connection between bacteria in dental plaque and oral diseases ...
G. A. (Fridus) Van der Weijden   +1 more
wiley   +1 more source

Numerical Modeling of Local Scour in the Vicinity of Bridge Abutments When Covered with Ice

open access: yesWater, 2023
The occurrence of bridge collapse is frequently attributed to the prevalent erosion in the vicinity of bridge abutments. Accurate determination of the maximum scour depth in the vicinity of bridge abutments is imperative to ensure a secure and reliable ...
M. R. Namaee, Peng Wu, M. Dziedzic
semanticscholar   +1 more source

Challenges and enablers in fluidization technology

open access: yesAIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

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