Results 21 to 30 of about 153,851 (265)

Metrics for the Quantification of Seeding Characteristics to Enhance Image Velocimetry Performance in Rivers

open access: yesRemote Sensing, 2020
River flow monitoring is essential for many hydraulic and hydrologic applications related to water resource management and flood forecasting. Currently, unmanned aerial systems (UASs) combined with image velocimetry techniques provide a significant low ...
Silvano Fortunato Dal Sasso   +2 more
doaj   +1 more source

ICE FLOW VELOCITY MAPPING IN GREENLAND USING HISTORICAL IMAGES FROM 1960s TO 1980s: SCHEME DESIGN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Ice flow velocity over long time series in Greenland plays a vital role in estimating and predicting the mass balance of the Greenland Ice Sheet and its contribution to global sea level rise.
Z. Yu   +9 more
doaj   +1 more source

Photogrammetry for Free Surface Flow Velocity Measurement: From Laboratory to Field Measurements [PDF]

open access: yesWater, 2021
This study describes a multi-camera photogrammetric approach to measure the 3D velocity of free surface flow. The properties of the camera system and particle tracking velocimetry (PTV) algorithm were first investigated in a measurement of a laboratory open channel flow to prepare for field measurements.
Hang Trieu   +5 more
openaire   +2 more sources

Exploiting LSPIV to assess debris-flow velocities in the field [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2018
The assessment of flow velocity has a central role in quantitative analysis of debris flows, both for the characterization of the phenomenology of these processes and for the assessment of related hazards. Large-scale particle image velocimetry (LSPIV)
J. I. Theule   +5 more
doaj   +1 more source

Analysis of the Velocity Distribution in Partially-Filled Circular Pipe Employing the Principle of Maximum Entropy. [PDF]

open access: yesPLoS ONE, 2016
The flow velocity distribution in partially-filled circular pipe was investigated in this paper. The velocity profile is different from full-filled pipe flow, since the flow is driven by gravity, not by pressure.
Yulin Jiang, Bin Li, Jie Chen
doaj   +1 more source

Effect of Crest Roughness on Flow Characteristics over Circular Weirs [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2013
Different construction materials with different roughness used to make circular weirs highly affect surface roughness and, in turn, flow hydraulics passing over these structures.
Rasoul Ghobadian   +3 more
doaj   +1 more source

Numerical Simulation of Flow Field, Bubble Distribution and Solidified Shell in Slab Mold under Different EMBr Conditions Assisted with High-Temperature Quantitative Velocity Measurement

open access: yesMetals, 2022
The flow field, bubble distribution and solidified shell in slab mold are numerically simulated with large eddy simulation (LES) under different electromagnetic braking (EMBr) conditions, assisted with high-temperature quantitative velocity measurement ...
Yi Guo   +5 more
doaj   +1 more source

Assisting and opposing flow of a MHD hybrid nanofluid flow past a permeable moving surface with heat source/sink and thermal radiation

open access: yesPartial Differential Equations in Applied Mathematics, 2021
The aim of the current investigation is to study the assisting and opposing flow effects on hybrid nanofluid (SiO2-MoS2/water) flow past a moving surface under the impact of heat source/sink, thermal radiation and velocity slip.
Moh Yaseen   +2 more
doaj   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Numerical simulation study on the drag reduction characteristics of grooves-microbubbles coupling surfaces

open access: yesInternational Journal of Metrology and Quality Engineering
Surface drag reduction technologies can significantly reduce the resistance during ship navigation, enhancing speed, efficiency and adaptability under various operating conditions.
Li Tianjian   +5 more
doaj   +1 more source

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