Results 21 to 30 of about 1,613,595 (364)

Effect of Electric Ducted Fans Structural Arrangement on Their Performance Characteristics

open access: yesApplied 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   +5 more
doaj   +1 more source

Modelling the Air Transport with Complex Networks: a short review [PDF]

open access: yesEuropean Physical Journal Special Topics 215, 5-21 (2013), 2013
Air transport is a key infrastructure of modern societies. In this paper we review some recent approaches to air transport, which make extensive use of theory of complex networks. We discuss possible networks that can be defined for the air transport and we focus our attention to networks of airports connected by flights.
arxiv   +1 more source

Using Fast-Time Simulations for Designing and Operating Airport Terminals as Nodes of Intermodaltransport

open access: yesCommunications, 2011
Ever growing traffic in air transport with associated capacity constraints brings problems to air passenger flows at airports. There is strong link between quality of airport ground access system and airport terminal operations.
Benedikt Badanik   +2 more
doaj   +1 more source

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

open access: yesAerospace, 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   +3 more
doaj   +1 more source

Expropriation and Airport Development

open access: yesCivil and Environmental Engineering, 2020
The article deals with issues, which may arise during the preparation of line infrastructure projects in the public interest such as airports, railways or highways.
Kazda Antonín   +2 more
doaj   +1 more source

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

open access: yesAerospace, 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   +3 more
doaj   +1 more source

Multi-Agent Reinforcement Learning for Cooperative Air Transportation Services in City-Wide Autonomous Urban Air Mobility [PDF]

open access: yesarXiv, 2023
The development of urban-air-mobility (UAM) is rapidly progressing with spurs, and the demand for efficient transportation management systems is a rising need due to the multifaceted environmental uncertainties. Thus, this paper proposes a novel air transportation service management algorithm based on multi-agent deep reinforcement learning (MADRL) to ...
arxiv  

Creep Characterization of Inconel 718 Lattice Metamaterials Manufactured by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView., 2023
Herein, the creep characteristics of additively manufactured Inconel 718 metamaterials are investigated. The creep behavior of metamaterials and the effects of microstructural defects are assessed, and the microstructure defects are accurately captured using Kachanov's creep damage model.
Akash Singh Bhuwal   +5 more
wiley   +1 more source

Network approach reveals the spatiotemporal influence of traffic to air pollution under the COVID-19 [PDF]

open access: yes, 2022
Air pollution causes widespread environmental and health problems and severely hinders the life quality of urban residents. Traffic is a critical for human life and its emissions are a major source of pollution, aggravating urban air pollution. However, the complex interaction between the traffic emissions and the air pollution in the cities has not ...
arxiv   +1 more source

Transport solutions for cleaner air [PDF]

open access: yesScience, 2016
In cities across the globe, road transport remains an important source of air pollutants that are linked with acute and chronic health effects. Decreasing vehicle emissions—while maintaining or increasing commuter journeys—remains a major challenge for city administrators.
Kelly, Frank James, Zhu, J T
openaire   +5 more sources

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