Results 21 to 30 of about 1,737,991 (333)

Effect of Electric Ducted Fans Structural Arrangement on Their Performance Characteristics

Applied Sciences, 2023
With the expanding electrification in all sectors of transport, it is necessary to look for new efficient solutions for propulsion systems for use in air transport.
Daniel Urban, Stanislav Kusmirek, Vladimir Socha, Lenka Hanakova, Karel Hylmar, Jakub Kraus   +5 more
doaj   +1 more source

In-Flight Aircraft Trajectory Optimization within Corridors Defined by Ensemble Weather Forecasts

Aerospace, 2020
Today, each flight is filed as a static route not later than one hour before departure. From there on, changes of the lateral route initiated by the pilot are only possible with air traffic control clearance and in the minority.
Martin Lindner, Judith Rosenow, Thomas Zeh, Hartmut Fricke   +3 more
doaj   +1 more source

Nitrate stable isotopes and major ions in snow and ice samples from four Svalbard sites [PDF]

, 2015
Increasing reactive nitrogen (N-r) deposition in the Arctic may adversely impact N-limited ecosystems. To investigate atmospheric transport of N-r to Svalbard, Norwegian Arctic, snow and firn samples were collected from glaciers and analysed to define ...
Aanes R., Alina Marca, Amoroso A., Atkin O.K, Beaudon E., Beine H.J., Björkman M.P, Björkman M.P., Björkman M.P., Blunier T., Bottenheim J.W., Brimblecombe P., Burkhart J.F., Carmen P. Vega, Carroll M.A., Casciotti K.L., Coplen T.B., Dibb J.E., Dickson L.G, Draxler R.R., Elisabeth Isaksson, Eneroth K., Felix J.D., Forsström S., Freyer H.D, Freyer H.D., Førland E.J., Gibbons J.D., Goto-Azuma K., Hastings M.G, Hastings M.G., Hastings M.G., Heaton T.H.E, Heaton T.H.E., Hisdal V, Honrath R.E., Honrath R.E., Jan Kaiser, Jarvis J.C., Kahl J.D.W., Kaiser J., Kang S., Kekonen T., Kühnel R., Kühnel R., Li D., Liu S.C., Mats P. Björkman, Michalski G., Morin S., Morin S., Morin S., Morin S., Mosier A.R., Nuth C., Pohjola V.A., Rickard Pettersson, Rinnan R., Ruggirello R.M., Röthlisberger R., Samyn D., Schuler T.V., Semb A., Shaver G.R., Stohl A., Tõnu Martma, Vega C.P., Veijo A. Pohjola, Wolff E.W, Xu L.   +69 more
core   +2 more sources

The Regional Airports’ Problems in the Slovak Republic: The Case Study of Žilina Airport

MATEC Web of Conferences, 2018
This paper solves the regional airports in the Slovak Republic and the problems they have been facing while focusing on the specific, i.e. ˈsmall regionalˈ airports category (up to 200,000 passengers transported per year).
Novák Sedláčková Alena, Švecová Denisa   +1 more
doaj   +1 more source

Results from the ATS-Level Assessment of the Clean Sky 2 Technology Evaluator

Aerospace
In this paper, we present the main results from the Second ATS-Level Assessment of the Clean Sky 2 Technology Evaluator. We first present the models employed and then move to the passenger and fleet forecast results up to 2050.
Marc C. Gelhausen, Alf Junior, Alexandra Leipold, Peter Berster, Holger Pabst, Christos Lois, Fabian Baier   +6 more
doaj   +1 more source

Application of RCM Principles in the Air Operations

Communications, 2005
Maintenance organizations assist in ensuring that all aircraft, their systems and parts are operated or maintained under controlled conformity to national and international airworthiness standards.
Ludek Beno, Martin Bugaj, Andrej Novak
doaj   +1 more source

Assessment of Aircraft Coating Resistance to Lighting Strikes and Long-Term Environmental Impact

Aerospace, 2023
During an aircraft’s flight through the atmosphere, the aircraft structure interacts with the surrounding environment. One of the potential hazards that can occur is a lightning strike to the structure covering. Subsequent damage to the aircraft covering
Pavol Pecho, Patrik Veľký, Martin Bugaj, Daniel Kajánek   +3 more
doaj   +1 more source

Assessment of All-Electric General Aviation Aircraft

Energies, 2020
The purpose of this paper is to describe the upcoming changes that will bring the transition from piston engines to all-electric aircrafts. The article focuses on the differences in operation of small general aviation aircrafts.
Jakub Hospodka, Helena Bínová, Stanislav Pleninger   +2 more
doaj   +1 more source

Research of Physiological Factors Affecting Pilot Performance in Flight Simulation Training Device

Communications, 2015
Physiological factors can easily affect a pilot performance and jeopardise the safety of the flight. Therefore, the research is based on the observation of student pilots' decision making and flying abilities during different flight conditions ...
Andrej Novak, Maria Mrazova
doaj   +1 more source

Design of Batteries for a Hybrid Propulsion System of a Training Aircraft

Energies, 2021
In this article, we propose the parameters of a battery that would be suitable for the conceptual design of a small training aircraft. The mass design of the battery is based on the requirements for real training flights performed by students in pilot ...
Michal Janovec, Jozef Čerňan, Filip Škultéty, Andrej Novák   +3 more
doaj   +1 more source