Results 31 to 40 of about 2,805,565 (241)

An Experimental Analysis of Water–Air Two-Phase Flow Pattern and Air Entrainment Rate in Self-Entrainment Venturi Nozzles

open access: yesEnergies, 2021
For self-entrainment venturi nozzles, the effects of nozzle shapes and operating conditions on the water–air two-phase flow pattern, and the characteristics of the air entrainment rate have been investigated.
Hyunwoo Bae, Jaeyong Sung
doaj   +1 more source

Air Entrainment and Slope Erosion During Overflow on a Levee Covered by Non-Uniform Turfgrass

open access: yesFluids
To mitigate flood damage caused by overflow from a levee, it is essential to prevent the levee failure or extend the time to breaching. Although turfgrass on a levee slope is effective in suppressing erosion, insufficient maintenance can reduce its ...
Yoshiya Igarashi   +3 more
doaj   +1 more source

Numerical Simulation and Evaluation of Campbell Running and Gating Systems

open access: yesMetals, 2020
The most common problems encountered in sand casting foundries are related to sand inclusions, air, and oxide films entrainment. These issues can be addressed to a good extent or eliminated by designing proper running systems.
Michail Papanikolaou   +3 more
doaj   +1 more source

In-Roll Stress Analysis Considering Air-Entrainment at the Roll-Inlet with the Effect of Grooves on Nip Roll Surface

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
High-speed winding of paper web sometimes leads the winding system into unstable states, interlayer slippage of wound roll, paper breakage and so on, due to the excessive air-entrainment at the roll-inlet of nip contact region.
Masashi SASAKI   +5 more
doaj   +1 more source

Zwitterionic Polymer Coating Enabled Chronic Dopamine Sensing and Electrophysiology Recording in Free‐Moving Mice

open access: yesAdvanced Healthcare Materials, EarlyView.
Application of a zwitterionic poly(sulfobetaine methacrylate) (PSB) coating to microelectrode arrays and Ag/AgCl reference electrodes effectively inhibits biofouling and structural degradation. This strategy successfully enables simultaneous, long‐term electrophysiological recording and dopamine sensing in freely behaving mice, facilitating ...
Bingchen Wu   +5 more
wiley   +1 more source

Measurement of the Film Thickness, Film Velocity and Entrainment Fraction in a Liquid-Air Annular Flow Using a Conductance Flowmeter [PDF]

open access: yes, 2009
In certain older oil wells in the Middle East, the produced fluid is predominantly natural gas which flows at very high rates (e.g. 50,000 m3 / day ). Smaller quantities of crude oil (e.g. 50m3 / day ) and water (950m3 / day ) are also produced.
Lucas, Gary, A-Yarubi, Qahtan
core   +3 more sources

Air‐entrainment problem in self‐compacting concrete

open access: yesJournal of Civil Engineering and Management, 2009
According to the actual state of knowledge and in accordance with the PN‐EN 2006–1 norm, it is recommended to use air‐entrainment as a basic way of assuring frost‐resistance of concrete.
Janusz Szwabowski   +1 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Numerical analysis of flow structures and bed entrainment in turbulent open-channel flow [PDF]

open access: yes, 2009
PhDThe results from a Direct Numerical Simulation (DNS) and a Large Eddy Simulation (LES) are employed to study the large-scale coherent structures and bed entrainment in the turbulent open-channel flow.
Ma, Jianmin
core   +4 more sources

Surface oxide film entrainment mechanisms in shape casting running systems [PDF]

open access: yes, 2009
During the transient phase of filling a casting running system, surface turbulence can cause the entrainment of oxide films into the bulk liquid. Research has shown that these are detrimental to the material’s integrity.
Green, N. R.   +8 more
core   +1 more source

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