Results 71 to 80 of about 490,773 (280)

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Aerodynamic Design of a Tailless Aeroplan

open access: yesActa Polytechnica, 2001
The paper presents an aerodynamic analysis of a one-seat ultralight (UL) tailless aeroplane named L2k, with a very complicated layout. In the first part, an autostable airfoil with a low moment coefficient was chosen as a base for this problem.
J. Friedl
doaj  

An Overview and Comparison of Aviation and Space Insurance [PDF]

open access: yes, 2019
Commercial aviation and commercial space operations entail significant risk. The very nature of these operations means a mishap can result in significant financial losses.
Suchodolski, Jeanne
core   +1 more source

Air transport liberalisation in the European Union and its impact on development of the civil aviation sector in Poland [PDF]

open access: yes, 2009
The objective of this paper is to present an overview of the process of air transport liberalisation within the European Community and its influence on development of the aviation market in Poland.
Pisarek-Bartoszewska, Renata
core   +2 more sources

Unveiling Localized Heat in Lithium‐Ion Cells for Intelligent Temperature Sensing

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Heat generation, thermal responses, and intelligent management in batteries. Lithium‐ion batteries (LIBs) power electric vehicles, portable electronics, and grid‐scale storage, yet their safety, performance, and lifetime are constrained by thermal effects.
Yunke Wang   +6 more
wiley   +1 more source

Inclusion on EU Aviation Blacklist Spurs Reform in Central Asia. EUCAM Commentary No. 9, 8 January 2010 [PDF]

open access: yes, 2010
The EU’s most recent aviation blacklist bars all of Kyrgyzstan’s airlines from entering the Union’s air space, and all but one from Kazakhstan. The blanket ban reflects EU concern at safety deficiencies in the oversight system.
Walker, Anna.
core  

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai   +3 more
wiley   +1 more source

New technologies in general aviation [PDF]

open access: yes, 2010
This research explored the technological needs of GA pilots at international levels. Overall, single pilot operators tend to value costs as the most important feature of any technology, followed by technology that helps with pre-flight tasks as well as
Diaz Vilela, Luis   +2 more
core  

Memory‐Reduced Convolutional Neural Network for Fast Phase Hologram Generation

open access: yesAdvanced Intelligent Systems, EarlyView.
This article reports a lightweight convolutional neural network framework using INT8 quantization to efficiently generate 3D computer‐generated holograms from a single 2D image. The quantized model reduces memory usage and computational cost, accelerates inference speed, and maintains high output quality, enabling real‐time holographic display on low ...
Chenliang Chang   +6 more
wiley   +1 more source

Business Aviation in Germany: An empirical and model-based analysis [PDF]

open access: yes
The primary role of international airports is to serve the general public with scheduled and charter services, typically provided by airlines. Of secondary importance is their task to provide direct air transport access to the regional industry and to ...
Berster, Peter   +2 more
core   +1 more source

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