Results 71 to 80 of about 22,672 (266)
Research on Oil Recovery Technology of Graded Pressure Subsurface Pump
Shiyou jixie, 2019 CO2 flooding in low-permeability reservoirs can significantly increase oil recovery. However, owing to the injection of CO2, the gas content in the production medium is increased, resulting in a decrease in the pump efficiency.
Zhi Qingong
doaj
Investigation of CAI/SI operations ina a four-cylinder direct injection gasoline engine
, 2006 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A four-cylinder, four-stroke, gasoline engine with direct injection fuel was commissioned and used to achieve CAI combustion. CAI combustion was achieved by
Kalian, Navin
core
Thermal stresses in pipes [PDF]
, 2002 This study presents results about thermal stresses in externally heated pipes that are subjected to different flow types: laminar flow, turbulent flow, and pulsating flow. The effect o f flow Reynolds number on thermal stresses in the pipe is studied. To
Al-Zaharnah, Iyad
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Dynamics of a high-Reynolds-number bubble rising within a thin gap [PDF]
, 2012 We report an experimental analysis of path and shape oscillations of an air bubble of diameter d rising in water at high Reynolds number in a vertical Hele-Shaw cell of width h.
Billet, Anne-Marie +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink +4 more
wiley +1 more source
, 2008 It would seem logical that acoustic signals measured from within a diesel engine’s exhaust pipe would contain useful information for engine monitoring.
Gu, Fengshou, Ball, Andrew, Jiang, Xiang
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Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids
Advanced Functional Materials, EarlyView.This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow +9 more
wiley +1 more source
Axial Variations and Entry Effects in a Pressure Screen
, 2007 Pressure screens are used for contaminant removal and fibre length fractionation in the production of pulp and paper products. Axial variations and entry effects in the screen are known to occur and these variations have not been adequately quantified.
Martin John Atkins, Atkins, Martin John
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Design and investigation of a diesel engine operated on pilot ignited LPG [PDF]
, 2009 This thesis explores the idea of igniting LPG in a compression ignition diesel engine using pilot diesel injection as spark ignition medium. The main advancement in using this technology on current diesel engines is the establishment of a better ...
Theodoridis, Eudoxios
core
Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source