Analytical and experimental study of a reverse circulation drill bit with an annular slit
Advances in Mechanical Engineering, 2016 A new type of drill bit designed with an annular slit was developed to enhance the reverse circulation effect of the down-the-hole hammer drilling technology. A computational fluid dynamics code, Fluent, was used to simulate the flow phenomena inside the
Pinlu Cao +4 more
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Targeting interleukin-1β protects from aortic aneurysms induced by disrupted transforming growth factor β signaling [PDF]
, 2017 Aortic aneurysms are life-threatening conditions with effective treatments mainly limited to emergency surgery or trans-arterial endovascular stent grafts, thus calling for the identification of specific molecular targets.
Bizzotto, Dario +13 more
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Eddy-Mediated Regime Transitions in the Seasonal Cycle of a Hadley Circulation and Implications for Monsoon Dynamics [PDF]
, 2008 In a simulation of seasonal cycles with an idealized general circulation model without a hydrologic cycle and with zonally symmetric boundary conditions, the Hadley cells undergo transitions between two regimes distinguishable according to whether large ...
Bordoni, Simona, Schneider, Tapio
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Analysis of the Flow Reversal in Natural-Circulation Boiler
JAPANESE JOURNAL OF MULTIPHASE FLOW, 1989 Flow reversal phenomena in natural-circulation boilers are studied analytically according to both the homogeneous-flow model and the slip-flow model. In the latter model Thom's pressure drop correlation is used. The pressure drop between the upper steam-water drum and the lower header is assumed not to be affected by inception of reverse flow in an ...
Shoji Yamauchi +2 more
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Nuclear Engineering and TechnologyCurrent investigations reveal that reverse flow phenomena in parallel steam generator U-tubes under natural circulation significantly reduce circulation capacity, compromising operational safety of marine nuclear power plant.
Jianli Hao +5 more
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Circulation patterns in the Gulf of Finland from daily to seasonal timescales
Tellus: Series A, Dynamic Meteorology and Oceanography, 2019 We studied circulation patterns in the Gulf of Finland (GoF), an estuary-like sub-basin of the Baltic Sea. Circulation patterns in the GoF are complex and vary from season to season and year to year.
Antti Westerlund +6 more
doaj +1 more source
Characterisation of a horizontal axis wind turbine’s tip and root vortices [PDF]
, 2013 The vortical near wake of a model horizontal axis wind turbine has been investigated experimentally in a water channel. The objective of this work is to study vortex interaction and stability of the helical vortex filaments within a horizontal axis ...
Lo Jacono, David +2 more
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Maximum st-flow in directed planar graphs via shortest paths
, 2013 Minimum cuts have been closely related to shortest paths in planar graphs via planar duality - so long as the graphs are undirected. Even maximum flows are closely related to shortest paths for the same reason - so long as the source and the sink are on ...
C. Ford +6 more
core +1 more source
Reverse chemical ecology approach for the identification of an oviposition attractant for Culex quinquefasciatus. [PDF]
, 2018 Pheromones and other semiochemicals play a crucial role in today's integrated pest and vector management strategies. These semiochemicals are typically discovered by bioassay-guided approaches.
Bhagavathy, Ganga +7 more
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Impact of decadal reversals of the North Ionian circulation on phytoplankton phenology [PDF]
Biogeosciences, 2017 Abstract. In the North Ionian, water circulation is characterized by a decadal alternation of cyclonic and anticyclonic regime driven by the mechanism called BiOS (Bimodal Oscillating System). The circulation regime affects the vertical dynamics and the nutrient distribution.
Lavigne, Héloise +3 more
openaire +3 more sources