Results 21 to 30 of about 128,777 (266)

Evidence for flow-parsing in radial flow displays

open access: yesVision Research, 2008
Retinal motion of objects is not in itself enough to signal whether or how objects are moving in the world; the same pattern of retinal motion can result from movement of the object, the observer or both. Estimation of scene-relative movement of an object is vital for successful completion of many simple everyday tasks.
Warren, Paul A., Rushton, Simon K.
openaire   +2 more sources

Two-Dimensional Modeling of Pressure Swing Adsorption (PSA) Oxygen Generation with Radial-Flow Adsorber

open access: yesApplied Sciences, 2019
Radial flow is an important type of flow direction for large-scale pressure swing adsorption (PSA) oxygen generation systems. In this study, a numerical simulation of a PSA oxygen generation process based on radial-flow adsorbers was performed with two ...
Xiong Yang   +6 more
doaj   +1 more source

Dynamics of a vortex pair in radial flow [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2007
13 pages, 9 ...
Bannikova, Elena Yu.   +2 more
openaire   +2 more sources

Gripping devices of industrial robots for manipulating offset dish antenna billets and controlling their shape

open access: yesTransport, 2021
Invention proposes an adaptive gripping device of an industrial robot, which combines functions of capturing different-shape manipulation objects with control of deviations from the shape of these objects.
Volodymyr Savkiv   +5 more
doaj   +1 more source

An approximation of behind-casing hydraulic conductivity between layers from transient pressure analysis

open access: yesDyna, 2019
Flow behind the casing has normally been identified and quantified using production logging tools. Very few applications of pressure transient analysis, which is much cheaper, have been devoted to determining compromised cemented zones.
Freddy Humberto Escobar   +2 more
doaj   +1 more source

Description of steady inflow of fluid to wells with different configurations and various partial drilling-in

open access: yesЗаписки Горного института, 2020
There are many equations of steady inflow of fluid to the wells depending on the type of well, presence or absence of artificial or natural fractures passing through the well, different degrees of drilling-in of the wellbores.
Valery A. Iktissanov
doaj   +1 more source

Particulate Modeling of Sand Production Using Coupled DEM-LBM

open access: yesEnergies, 2021
Sand production is a complex phenomenon caused by the erosion of borehole walls during the extraction of hydrocarbons. In this paper, the sanding process in a typical Thick-Walled Hollow Cylinder (TWHC) test is numerically simulated.
Siavash Honari, Ehsan Seyedi Hosseininia
doaj   +1 more source

Development of the governing equation on the behavior of radial flows in coarse porous media and its numerical solution [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2020
The hydrous bed of the rivers covered with coarse alluvial materials is a goodresource along with other resources to provide the needs of the water.
Jalal Sadeghian, Mohammad Reza Mihani
doaj   +1 more source

3-D Modeling of Gas–Solid Two-Phase Flow in a π-Shaped Centripetal Radial Flow Adsorber

open access: yesApplied Sciences, 2020
Radial flow adsorber (RFA) is widely used in large-scale pressure swing adsorption (PSA) oxygen production system because of high air separation. In this study, a 3-D modeling of gas−solid two-phase flow was established for the π-shaped ...
Haoyu Wang   +6 more
doaj   +1 more source

Numerical and Experimental Investigation on Unsteady Flow and Hydraulic Radial Force of Low-Head Axial Flow Turbine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Radial force in low-head axial flow turbines (AFTs) is an influential factor in their operational stability. To explore the transient operating behavior of the radial force in low-head AFTs under different blade numbers, transient numeric computations ...
Y. Sunsheng   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy