Results 71 to 80 of about 2,769 (221)

Experimental Study of Dike‐Break Induced Flow Generated by Instantaneous Opening of the Side Gate

open access: yesJournal of Flood Risk Management, Volume 18, Issue 1, March 2025.
ABSTRACT A large‐scale experimental model of instantaneous dike‐break induced flow was conducted in this work. Water level variations in the river channel and floodplain, breach discharge, and the surface velocity field at the breach were measured during dike failure.
Dawei Zhang   +3 more
wiley   +1 more source

Stability Analysis of Earth-rockfill Dam Slope under the Condition of Reservoir Water Level Fluctuation and Continuous Rainfall

open access: yesRenmin Zhujiang, 2020
In order to study the influence of reservoir water level fluctuation and continuousrainfall on the seepage and stability of small and medium earth-rockfill dams, based on theunsaturated seepage theory, this paper carries out the finite element simulation
FENG Zhihu   +4 more
doaj  

Three‐dimensional characterization of particle morphology in natural gravel and blasted rock fragments using SfM‐MVS photogrammetry

open access: yesRiver, Volume 4, Issue 1, Page 70-83, February 2025.
Structure from Motion‐Multi‐View Stereo photogrammetry 3D reconstruction. Abstract This study aims to develop a high‐precision and cost‐efficient method for the three‐dimensional reconstruction of large particles in natural gravel and blasted rock fragments, utilizing Structure from Motion (SfM) and Multi‐View Stereo (MVS) techniques.
Hongchen Liu   +4 more
wiley   +1 more source

Utilisation of Stepped Channels and Study of Stepped Channel Flows in Australia [PDF]

open access: yes, 1998
Stepped channels and spillways are used since more than 3,000 years. Recently, new construction materials (e.g. RCC, gabions) have increased the interest for stepped chutes.
Chanson, Hubert
core  

Ultimate a seismic capacity of high earth-rock dams based on stochastic dynamic analysis

open access: yesYantu gongcheng xuebao
The randomness of seismic motion significantly affects the dynamic response of dams. The ultimate capacity is a critical factor for the seismic safety of dams, thus during the assessment process the influences of load randomness should be thoroughly ...
PANG Rui 1, 2, , LU Yunzhu 1, JI Rui 1, XU Bin 1, 2
doaj   +1 more source

Dams and overtopping: a polyhedral relationship [PDF]

open access: yes, 2016
This paper discusses the different elements playing a role in causes and consequences of dam overtopping: the river basin, the reservoir, the dam and the spillway, the riverbed and the territory downstream of the reservoir.
Toledo Municio, Miguel Ángel
core  

Dam seepage analysis based on artificial neural networks: the hysteresis phenomenon [PDF]

open access: yes, 2013
Seepage flow measurement is an important behavior indicator when providing information about dam performance. The main objective of this study is to analyze seepage by means of an artificial neural network model.
Fraile Ardanuy, José Jesús   +2 more
core   +1 more source

Coarse‐Grained Ore Distribution on Conveyor Belts With TRCU Neural Networks

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
(1) The method can be used as technical support and the basis for subsequent real‐time particle size detection in the beneficiation process. (2) The proposed model combines Transformer and residual blocks with the CBAM attention mechanism in the encoder‐decoder. (3) The proposed model can effectively partition the ore particles of different grain sizes.
Weinong Liang   +6 more
wiley   +1 more source

Optimization Study For The Cross-Section Of A Concrete Gravity Dam: Genetic Algorithm Model And Application [PDF]

open access: yes, 2019
Concrete gravity dams have trapezoidal shape in their cross section and shall guarantee the global stability against acting loads like hydrostatic and uplift pressures through his gravitational actions (self-weight and others).
Araujo, Leilson Joaquim   +2 more
core   +3 more sources

Marine Fish Passage—Underappreciated Threats to Connectivity Within the Marine Environment

open access: yesMarine Ecology, Volume 46, Issue 1, January 2025.
ABSTRACT Habitat fragmentation is a major threat to aquatic biodiversity loss. However, much of the focus is on the connectivity of freshwaters, with much less attention given to marine ecosystems. We contend that coastal infrastructure including bridges, causeways, tidal turbines, land infilling and harbours, wharfs, quays, piers and docks have ...
Robert J. Lennox   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy