Results 131 to 140 of about 2,746,875 (275)

Hydrogen Propulsion Technologies for Aviation: A Review of Fuel Cell and Direct Combustion Systems Towards Decarbonising Medium-Haul Aircraft

open access: yesHydrogen
Hydrogen propulsion technologies are emerging as a key enabler for decarbonizing the aviation sector, especially for regional commercial aircraft. The evolution of aircraft propulsion technologies in recent years raises the question of the feasibility of
Daisan Gopalasingam   +2 more
doaj   +1 more source

Diagnostics of the tropical tropopause layer from in-situ observations and CCM data [PDF]

open access: yes, 2009
A suite of diagnostics is applied to in-situ aircraft measurements and one Chemistry-Climate Model (CCM) data to characterize the vertical structure of the Tropical Tropopause Layer (TTL).
Cagnazzo, Chiara   +9 more
core  

Economic Importance of Air Transport and Airport Activities in Belgium. NBB Working Papers. No. 158, 10 March 2009 [PDF]

open access: yes, 2009
This study is a publication issued by the Microeconomic Analysis service of the National Bank of Belgium, in partnership with the Department of Transport and Regional Economics of the University of Antwerp (UA).
Kupfer, Franziska, Lagneaux, Frédéric.
core  

Effects of riblets on the performances of a regional aircraft configuration in NLF conditions

open access: green, 2018
Pietro Catalano   +4 more
openalex   +2 more sources

ON-BOARD SYSTEM ARCHITECTURES FOR HYBRID/ALL-ELECTRIC REGIONAL AIRCRAFT

open access: green, 2021
Marco Fioriti   +4 more
openalex   +2 more sources

Overview of FAA's aircraft icing program [PDF]

open access: yes, 1985
An overview of the FAA's icing program is presented. The program involves certification of various types of aircraft for flight in known icing conditions, the study of icing conditions, and the preparation of certification standards.
Czekalski, L.
core   +1 more source

Evaluating the Impact of Storage-and-Release on Aircraft-based Mass-Balance Methodology Using a Regional Air Quality Model

open access: gold, 2021
Sepehr Fathi   +7 more
openalex   +1 more source

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