Results 31 to 40 of about 240 (52)

Analytical flutter investigation of a composite propfan model [PDF]

open access: yes
A theoretical model and an associated computer program for predicting subsonic bending-torsion flutter in propfans are presented. The model is based on two-dimensional unsteady cascade strip theory and three-dimensional steady and unsteady lifting ...
Kaza, K. R. V.   +3 more
core   +1 more source

Advanced turboprop wing installation effects measured by unsteady blade pressure and noise [PDF]

open access: yes
A single rotation model propeller (SR-7A) was tested at simulated takeoff/approach conditions (Mach 0.2), in the NASA Lewis 9- by 15-Ft Anechoic Wind Tunnel.
Heidelberg, Laurence J.   +1 more
core   +1 more source

Análisis del programa de Gastos Catastróficos en Salud, implementado por los Servicios de Salud en el estado de Puebla desde la perspectiva de política pública [PDF]

open access: yes, 2020
El artículo realiza un análisis sobre el funcionamiento del programa Gastos Catastróficos en Salud, implementado por los Servicios de Salud en el estado de Puebla desde la perspectiva de política pública.
Galindo Quiñones, Julio   +3 more
core   +1 more source

O professor diante das transformações educacionais: reflexões / The teacher facing educational transformations: reflections [PDF]

open access: yes, 2021
Este artigo tem como objetivo apresentar algumas reflexões sobre as transformações educacionais e o papel do professor de nível superior nesse contexto.
González, Daniel González   +1 more
core  

Unsteady blade pressure measurements on a model counterrotation propeller [PDF]

open access: yes
In an exploratory effort an advanced counterrotation propeller instrumented with blade-mounted pressure transducers was tested in the NASA Lewis 9- by 15-Foot Anechoic Wind Tunnel at a simulated takeoff and landing speed of Mach 0.20. The propeller's aft
Heidelberg, Laurence J.   +1 more
core   +1 more source

Montana Kaimin, February 23, 1983 [PDF]

open access: yes, 1983
Student newspaper of the University of Montana, Missoula.https://scholarworks.umt.edu/studentnewspaper/8516/thumbnail ...
Associated Students of the University of Montana
core   +1 more source

Advanced Turboprop Project [PDF]

open access: yes
At the direction of Congress, a task force headed by NASA was organized in 1975 to identify potential fuel saving concepts for aviation. The result was the Aircraft Energy Efficiency (ACEE) Program implemented in 1976.
Hager, Roy D., Vrabel, Deborah
core   +1 more source

Efecto del Electrocardiograma de Esfuerzo Sobre la Función Plaquetaria, Concentración del Factor Von Willebrand y del Fibrinógeno en Pacientes Hipertensos e Individuos Sanos [PDF]

open access: yes, 2009
  El objetivo del presente estudio fue conocer el efecto del electrocardiograma de esfuerzo (ECGE) sobre factores de riesgo trombótico en pacientes hipertensos y personas normales.
Arteaga-Vizcaíno, Melvis   +4 more
core   +1 more source

Noise of a model counterrotation propeller with reduced aft rotor diameter at simulated takeoff/approach conditions (F7/A3) [PDF]

open access: yes
A model high-speed advanced counterrotation propeller, F7/A3, was tested in the NASA Lewis Research Center 9 by 15 foot Anechoic Wind Tunnel at simulated takeoff/approach conditions of 0.2 Mach number.
Gordon, Eliott B., Woodward, Richard P.
core   +1 more source

Large-scale Advanced Prop-fan (LAP) high speed wind tunnel test report [PDF]

open access: yes
High Speed Wind Tunnel testing of the SR-7L Large Scale Advanced Prop-Fan (LAP) is reported. The LAP is a 2.74 meter (9.0 ft) diameter, 8-bladed tractor type rated for 4475 KW (6000 SHP) at 1698 rpm. It was designated and built by Hamilton Standard under
Arseneaux, Peter J.   +2 more
core   +1 more source

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