Results 131 to 140 of about 14,470 (301)
, 2007 At very high altitudes the Reynolds number flow through the low pressure turbine section of the gas turbine engine can drop below 25,000. At these low Reynolds numbers the flow is laminar and extremely susceptible to separation which can lead to ...
Woods, Nathan Michael
core
Journal of Applied Polymer Science, EarlyView.A comparative investigation of two epoxy additives derived from cardanol (NC513 and NC514s) for production of films based on poly (lactic acid) (PLA), acetyl tributyl citrate (ATBC), and poly (butylene adipate‐co‐terephthalate) (PBAT) clarified their distinct roles, with NC513 mainly acting as a plasticizer, reducing viscosity and enhancing ductility ...
Norma Mallegni +3 more
wiley +1 more source
Surface Charges Guided Quasi‐TEM‐mode Microwave Propagation along Dielectric Nanowire
Advanced Physics Research, EarlyView.According to Maxwell's equations, a single‐conductor transmission line cannot allow TEM‐mode electromagnetic wave propagation, however, this is based upon the assumption that dielectric material is isolated from the environment. In practice, surface electrostatic charges widely existed in nano‐materials with large surface‐to‐volume ratio.
BoYan Xu +7 more
wiley +1 more source
A theory for lateral wing-tip blowing
, 1985 The concept of lateral blowing consists in utilizing thin jets of air, which are ejected in the spanwise direction from slots at the tips of straight and swept wings, or along the leading edges of delta wings, to generate aerodynamic forces without the ...
Roberts, L., Tavella, D.
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Numerical Simulation of Molten Steel Flow in Tundish with Gas Curtain
Teshugang, 2006 Based on operation process parameters of tundish for two strand concasting 1500 mmx 250 mm slab,using Eulerian multiphase model,porous media model and Larangian random-trajectory model,the characteristics of molten steel flow and inclusion moving trace ...
张美杰 +4 more
doaj
Advanced Physics Research, EarlyView.Active reactance in electro‐thermal memristors emerges intrinsically from rapid thermal switching of device resistance, linking current‐controlled and voltage‐controlled negative differential resistance to neuronal spiking dynamics. Opposing temperature coefficients of resistance give rise to active inductive or capacitive responses, enabling tunable ...
Fatme Jardali +4 more
wiley +1 more source
A Numerical Study on the Effect of Blowing Ratio on the Film Cooling for an Axial Turbine Rotor
, 2010 MasterRecently desired for more efficient, turbine inlet total temperature has been increased, but the higher temperature gas causes the thermal stress seriously.
황동하
core
On the effect of low blowing ratio continuous jets on wingtip vortex characteristics
, 2018 Vortices are an unavoidable effect of flight, which appear behind the wing with a bounded length. The strength of these vortices, which are extremely stable, is due to the lift force [1]. That is the reason why this phenomenon is especially relevant during take-off and landing operations.
Blanco-Rodríguez, Francisco José +3 more
openaire +1 more source
7000 Years of Aboriginal Mining at Sugarloaf Hill in the Riverland Region of South Australia
Archaeology in Oceania, EarlyView.ABSTRACT Silcrete and chert are commonly represented in Aboriginal archaeological lithic assemblages across large parts of the southwestern Murray‐Darling Basin (MDB). In South Australia (SA), these materials were sourced from a series of quarries located along the incised course of the Murray River through the upper Riverland region.
Craig Westell +8 more
wiley +1 more source
British Educational Research Journal, EarlyView.Abstract Quality in early childhood education and care (ECEC) is a contested concept and has generally been conceptualised by inter‐related indicators such as staff qualifications, educational environment, policy or child‐to‐staff ratios. There has been a more limited emphasis on how young children might perceive and experience quality.
Nikki Fairchild, Éva Mikuska
wiley +1 more source