Results 11 to 20 of about 791,234 (283)

A Flow-Measuring Algorithm of Arc-Bottomed Open Channels through Multiple Characteristic Sensing Points of the Flow-Velocity Sensor in Agricultural Irrigation Areas

open access: yesSensors, 2020
Precise flow measurement in the open channel is a key prerequisite to implementation of modern agricultural efficient water use. The channel with an arc-bottomed shape is the most common channel type in irrigation area at present.
Yu Han   +3 more
doaj   +1 more source

3D numerical modeling of flow characteristics in an open channel having in-line circular vegetation patches with varying density under submerged and emergent flow conditions

open access: yesJournal of Hydrology and Hydromechanics, 2022
In the marine ecological system, the prime role of water management and durability of an ecosystem is being played by the vegetation patches. The vegetation patches in open channels can significantly affect the flow velocity, discharge capacity and ...
Tariq Hasnain   +3 more
doaj   +1 more source

Subgrid Variational Optimized Optical Flow Estimation Algorithm for Image Velocimetry

open access: yesSensors, 2022
The variational optical flow model is used in this work to investigate a subgrid-scale optimization approach for modeling complex fluid flows in image sequences and estimating their two-dimensional velocity fields.
Haoxuan Xu   +4 more
doaj   +1 more source

Experimental investigations of open-channel flow and velocity to develop a predictive tool from a laboratory small scale to real-world large scale

open access: yesWater Science and Technology, 2022
Open channel flow and velocity behaviour presents a dilemma for drainage systems designers where hydrologic parameters are fluctuating in space and time.
Eyad Abushandi
doaj   +1 more source

Flow Hydrodynamic in Open Channels [PDF]

open access: yes, 2023
Streams and rivers are subject to considerable hydrodynamic loads. Flow interactions with natural or man-made structures in open channels lead to the development of complex dynamic processes, requiring further studies to comprehend fully.

core   +1 more source

An experimental investigation of the impact of aquatic weeds trash racks on water surface profile in open channels

open access: yesWater Science, 2019
A considerable quantity of weeds is drafted with flow due to maintenance activities and moving vessels causing serious problem to hydraulic structures and hydropower plants along open channels. Aquatic weed trash screens are normally constructed upstream
Mohamed Salah Abd Elmoaty
doaj   +1 more source

Strict coupling between CFTR's catalytic cycle and gating of its Cl- ion pore revealed by distributions of open channel burst durations [PDF]

open access: yes, 2010
CFTR, the ABC protein defective in cystic fibrosis, functions as an anion channel. Once phosphorylated by protein kinase A, a CFTR channel is opened and closed by events at its two cytosolic nucleotide binding domains (NBDs).
Gadsby, David C.   +5 more
core   +1 more source

Modelling and analysis of open-channel networks [PDF]

open access: yes, 2022
openNegli ultimi decenni, il riscaldamento globale ha aumentato la frequenza e l'intensità delle precipitazioni, sottoponendo a una forte sollecitazione i sistemi di drenaggio delle aree urbane che non sono progettati per gestire questi fenomeni ...
FRIGO, MICHELE
core  

Detection, Isolation, and Magnitude Estimation of Unknown Flows in Open-Channel Irrigation Systems

open access: yesIEEE Access, 2021
The development of modeling and estimation strategies, useful for determining the magnitude and location of unknown flows such as seepage and leaks, appears as a valuable tool to increase the efficiency of the open-channel irrigation systems (OCIS ...
Gregory Conde   +2 more
doaj   +1 more source

Single-channel analysis of the anion channel-forming protein from the plant pathogenic bacterium Clavibacter michiganense ssp. nebraskense [PDF]

open access: yes, 1993
Schürholz T, Dloczik L, Neumann E. Single-channel analysis of the anion channel-forming protein from the plant pathogenic bacterium Clavibacter michiganense ssp. nebraskense. Biophysical Journal.
Schürholz, Theo   +2 more
core   +2 more sources

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