Results 31 to 40 of about 36,144 (312)

Empirical Formulas to Predict the Maximum Scour Depth With Debris Accumulation Around A Single Cylindrical Bridge Pier: An Experimental Study [PDF]

open access: yesEngineering and Technology Journal, 2020
The probability of debris accumulation near bridge piers during the heavy storm and river flood convert the hydraulic action of flow and increase the scour depth due to the reduction of flow area and the increase in velocity of flow.
Mahmoud Saleh Al-Khafaji, Aysar Al-Awadi
doaj   +1 more source

Length Parameter for Scaling Abutment Scour Depth [PDF]

open access: yesWater, 2020
Flow constriction caused by bridge abutment increases bed shear stress and thus enhances local scour. For scaling the maximum scour depth at the abutment, either abutment length or flow depth has been empirically used in previous studies. By performing a step-by-step analysis, this study proposes a new length scale, which is able to represent combined ...
Puer Xu, Niansheng Cheng, Maoxing Wei
openaire   +1 more source

Experimental Investigation of Scour Prediction Methods for Offshore Tripod and Hexapod Foundations

open access: yesJournal of Marine Science and Engineering, 2020
Scour prediction is essential for the design of offshore foundations. Several methods have been proposed to predict the equilibrium scour depth for monopiles.
Xuan Ni, Leiping Xue
doaj   +1 more source

Estimation of Scour Depth at Bridge Piers by Using FASTER Model and Experimental Formulas [PDF]

open access: yesمهندسی منابع آب, 2017
Bridges are one of the most important river structures. One of the main causes of bridge failure is local scour at bridge piers. Yearly, Many bridges failed around the world because of disregarding hydraulic factors.
Elham Ghanbari Adivi   +1 more
doaj  

Erosion caused by propeller jets in a low energy harbour basin [PDF]

open access: yes, 2017
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Hydraulic Research on January, 2017, available online at: http://www.tandfonline.com/10.1080/00221686.2016.1252801Field data of a harbour basin are compared ...
García León, Manuel   +4 more
core   +2 more sources

Influence of junction angle on three-dimensional flow structure and bed morphology at confluent meander bends during different hydrological conditions [PDF]

open access: yes, 2014
© 2014 John Wiley & Sons, Ltd. Recent field and modeling investigations have examined the fluvial dynamics of confluent meander bends where a straight tributary channel enters a meandering river at the apex of a bend with a 90° junction angle.
Abrahams   +56 more
core   +1 more source

Experimental, Analytical, and Numerical Evaluation of Bridge Pier Scouring

open access: yesCivil and Environmental Engineering
Due to the rising number of incidents of bridge failure, scouring around bridges has received a lot of attention. Accurate scour depth prediction is a challenge for researchers and experts, despite massive global research efforts.
Kadam Gouri, Dawari Balkrishna
doaj   +1 more source

Hydrodynamic Modeling and Comprehensive Assessment of Pier Scour Depth and Rate Induced by Wood Debris Accumulation

open access: yesHydrology
This study mainly investigates the impact of debris accumulation on scour depth and scour hole characteristics around bridge piers. Through controlled experiments with uniform sand bed material, the influence of various debris shapes (high wedge, low ...
Muhanad Al-Jubouri, Richard P. Ray
doaj   +1 more source

Densely distributed and real-time scour hole monitoring using piezoelectric rod sensors [PDF]

open access: yes, 2019
This study aims to validate a piezoelectric driven-rod scour monitoring system that can sense changes in scour depth along the entire rod at its instrumented location.
Funderburk, Morgan L   +3 more
core  

Vision‐Based Handover and Organization of Robotic Scrub Nurse for Seamless Surgical Flow

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a pose estimation‐based robotic scrub nurse (PERSN) that assists surgical procedures by estimating the surgeon's hand position, orientation, and grasping state, along with the constraint‐based 6D pose of surgical instruments. User evaluations show that PERSN provides greater immediate usability and reduces physical demand compared ...
Seongjoon Kang   +9 more
wiley   +1 more source

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