Results 41 to 50 of about 2,467 (253)

Effect of Perforated Inclination and Height of Sill on Maximum Scour Depth and Energy Losses Downstream a Sluice Gate [PDF]

The Egyptian International Journal of Engineering Sciences and Technology
Screens have proven to be an effective choice for decreasing scour downstream of small hydraulic structures. This paper studies experimentally the performance of an inclined perforated sill with a fixed porosity of 41.1% and varied height.
Elsayed Elshahat, samar hassan, Gamal Abdelaal, Eslam Eltohamy   +3 more
doaj   +1 more source

Modelling local scour around bridge piers using TELEMAC [PDF]

, 2005
Scour at bridge crossings is a major cause of bridge failure. There are several different types of scour such as general scour, constriction scour and local scour.
Kabir, Alamgir
core  

The Spatiotemporal Genetic Architecture of Seed Vigor in Upland Cotton

Advanced Science, EarlyView.
Leveraging the semi‐automated SeedRanger platform, we profiled the germination kinetics of 356 cotton accessions at a 30‐min interval. This high‐throughput phenomic approach delineated a temporal genetic network comprising 541 stage‐specific loci. Crucially, functional validation identified FLA2 as a pivotal, auxin‐modulated regulator that orchestrates
Luyao Wang, Jie Dai, Ting Zhao, Shengjun Zhao, Hongyu Wu, Jiaying Pan, Yupeng Hao, Ke Nie, Li Yu, Yumeng Zhu, Xiangyi Zhao, Kai Huang, Mengke Zhang, Yongyan Zhao, Yaping Jiang, Siyuan Wang, Yiling Pan, Yubing Chen, Yilai Lin, Wanghong Shi, Yayuan Deng, Jin Han, Jie Li, Xuan Long, Junbin Wang, Zhiyuan Zhang, Zegang Han, Zhanfeng Si, Lei Ju, Jun Li, Tianzhen Zhang, Ji Zhou, Xueying Guan   +32 more
wiley   +1 more source

Investigation on local scour downstream of adverse st

Ain Shams Engineering Journal, 2014
This paper is focused on local scour downstream of adverse stilling basins where a submerged wall jet issued from a sluice gate. Experiments were conducted in a wide range of Froude numbers, grain sizes, tailwater depths, and stilling basin slopes.
Javad Farhoudi, Hossein Khalili Shayan
doaj   +1 more source

Using the movability number to model local clear-water scour in rivers [PDF]

, 2007
Includes bibliographical references.Local scour is associated with a considerable number of bridge failures worldwide. It occurs at bridge piers and abutments as a result of interactions between complex flow features and the channel bed.
Abban, Benjamin
core  

7000 Years of Aboriginal Mining at Sugarloaf Hill in the Riverland Region of South Australia

Archaeology in Oceania, EarlyView.
ABSTRACT Silcrete and chert are commonly represented in Aboriginal archaeological lithic assemblages across large parts of the southwestern Murray‐Darling Basin (MDB). In South Australia (SA), these materials were sourced from a series of quarries located along the incised course of the Murray River through the upper Riverland region.
Craig Westell, Ian Moffat, Richard Fullagar, Amy Roberts, Justine Kemp, Mike Morley, Marc Fairhead, Simon Hoad, River Murray and Mallee Aboriginal Corporation   +8 more
wiley   +1 more source

Experimental study on local scour around the pile on the sandy seabed under wave action

Shui kexue jinzhan, 2018
The local scour caused by a pile on a slope differs to that at the flat sand bed. A 1:16 slope with sediment median size of 0.32 mm was set up, and an experimental study of local scour around the pile under the action of regular wave was conducted. Under
CHENG Yongzhou, TANG Wen, LI Dianqi, HUANG Xiaoyun, XIA Bo   +4 more
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Experimental investigation of scour downstream of a type A trapezoidal piano key weir under free and submerged flow conditions

Journal of Hydrology and Hydromechanics
In this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and ...
Bodaghi Elnaz, Abdi-Chooplou Chonoor, Ghodsian Masoud   +2 more
doaj   +1 more source

Scour near Offshore Monopiles, Jacket-Type and Caisson-Type Structures

Journal of Marine Science and Engineering
Scour near various offshore structures (monopile, caisson foundation and jacket structure) was studied by performing laboratory flume tests and numerical solutions with a semi-empirical model (SEDSCOUR) and a sophisticated 2DV model (SUSTIM2DV).
Leo C. van Rijn, Nathanael Geleynse, Luitze Perk, Doke Schoonhoven   +3 more
doaj   +1 more source