Results 41 to 50 of about 410,154 (218)

Manufacturing requirements in design: The RTM process in aeronautics [PDF]

open access: yes, 2014
A sub-unit of an aeronautical structure (fuselage, fin, wing, etc.) consists of a set of components fixed rigidly together. One of today’s major industrial challenges is to produce these sub-units out of composite materials in order to increase the level
MOUTON, Serge   +3 more
core  

Acoustic Metamaterials in Aeronautics

open access: yesApplied Sciences, 2018
Metamaterials, man-made composites that are scaled smaller than the wavelength, have demonstrated a huge potential for application in acoustics, allowing the production of sub-wavelength acoustic absorbers, acoustic invisibility, perfect acoustic mirrors
Giorgio Palma   +4 more
doaj   +1 more source

Overview of NASA CTOL program [PDF]

open access: yes, 1978
Technology generated by NASA and specifically oriented toward advanced commercial air transport is reviewed. Results of the Aircraft Energy Efficiency program and of related disciplinary areas are reported.
Kramer, J. J.
core   +1 more source

Innovative Monitoring for Aeronautical Application Through Augmented Reality

open access: yesEngineering Proceedings
The technologies grouped under the term Extended Reality (XR) are constantly evolving. Only fifty years ago, they were delegated to the science fiction strand and were not feasible except in the distant future; today, they are successfully used for ...
Antonio Costantino Marceddu   +5 more
doaj   +1 more source

As origens da Embraer The origins of Embraer

open access: yesTempo Social, 2005
Este artigo analisa a criação das organizações que deram origem à Embraer, isto é, o Ministério da Aeronáutica, o Centro Tecnológico de Aeronáutica (CTA) e o Instituto Tecnológico da Aeronáutica (ITA), fundados nos anos de 1940 e 1950. Essas organizações
Maria Cecilia Spina Forjaz
doaj   +1 more source

Mobilisation du corps et simulation : comment susciter la transformation des pratiques professionnelles ?

open access: yesActivités
How can we support professionals who are reluctant to change their practices, even when those practices have negative impacts on work performance and health? Fostering the transformation of professional practices remains a major challenge.
Joffrey Beaujouan   +3 more
doaj   +1 more source

Radio Astronomy [PDF]

open access: yes, 1981
Contains reports on research objectives and eight research projects.National Science Foundation (Grant AST79-25075)National Science Foundation (Grant AST79-20984)National Science Foundation (Grant AST79-19553)U.S.
Ali, Ali D. S.   +14 more
core   +1 more source

Propeller design I : practical application of the blade element theory [PDF]

open access: yes
This report is the first of a series of four on propeller design and contains a description of the blade elements or modified Drzewiecke theory as used in the Bureau of Aeronautics, U.S. Navy Department. Blade interference corrections are used which were
Weick, Fred E
core   +1 more source

First flight centennial [PDF]

open access: yes
Aeronautics, Commercial ; Airlines ; Federal Reserve District ...
Andrew Foerster
core  

Armata română în campania de limitare şi lichidare a expansionismului bolşevic din Estul şi Centrul Europei. Divizia 6 Infanterie Focşani în apărarea României Mari [PDF]

open access: yesPolis: Revista de Stiinte Politice, 2019
When in November 1918 the Great Powers ended the Great Imperial War, Romania continued its own national war, with all the sacrifices and human, material and territorial losses caused by the campaigns of 1916 and 1917, by the Peace Treaty of Bucharest ...
Jănel TĂNASE
doaj  

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