Noise of a model counterrotation propeller with simulated fuselage and support pylon at takeoff/approach conditions [PDF]
Two modern high-speed advanced counterrotation propellers, F7/A7 and F7/A3 were tested in the NASA Lewis Research Centers's 9- by 15-foot Anechoic Wind Tunnel at simulated takeoff/approach conditions of 0.2 Mach number.
Hughes, Christopher E. +1 more
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A Geochemical Assessment of Potential Groundwater Storage Locations within the Yakima River Basin [PDF]
, 2020 Currently in the Yakima River Basin more people possess surface water rights than there is available surface water. As a result, the local community devised the Yakima River Basin Integrated Water Management Plan, with the goal of creating a sustainable ...
Sleeper, Silas
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Low-speed stability and control characteristics of a transport model with aft-fuselage-mounted advanced turboprops [PDF]
A limited experimental investigation was conducted in the Langley 4- by 7-Meter Tunnel to explore the effects of aft-fuselage-mounted advanced turboprop installations on the low-speed stability and control characteristics of a representative transport ...
Applin, Z. T., Coe, P. L., Jr.
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Blade Sweep for Low-Speed Axial Fans [PDF]
, 1989 Introduction Fan noise in low-speed equipment has been identified as a primary source of overall noise in many heat-exchange applications. When used with engine or motor-driven equipment that has been designed for good noise control, attention must be ...
W E Simmons
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Algorithms in 4-manifold topology [PDF]
We show that there exists an algorithm that takes as input two closed, simply connected, topological 4-manifolds and decides whether or not these 4-manifolds are homeomorphic.
Bastl, S. +30 more
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Análisis comparativo de las propiedades físico-mecánicas del mortero añadiendo fibra de musa paradisiaca de plátano y cabuya [PDF]
La presente tesis el objetivo fue analizar comparativamente las propiedades físico-mecánicas del mortero añadiendo fibra de musa paradisiaca de plátano y cabuya, el tipo de investigación fue aplicada, el diseño cuasiexperimental, el nivel de ...
Contreras Mendoza, Ariana Abigail +1 more
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An unsteady lifting surface method for single rotation propellers [PDF]
The mathematical formulation of a lifting surface method for evaluating the steady and unsteady loads induced on single rotation propellers by blade vibration and inflow distortion is described.
Williams, Marc H.
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Consentimiento y sacramentalidad. Reflejos de la sacramentalidad del matrimonio en la regulación jurídica del consentimiento en el CIC y en el CCEO [PDF]
, 2004 Miras, J. (Jorge)
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Vulnerability of simple reinforced concrete buildings to damage by rockfalls [PDF]
AM Remennikov +34 more
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