Results 31 to 40 of about 4,212 (284)

A Methodology for the Comparative Analysis of Hybrid Electric and All-Electric Power Systems for Urban Air Mobility

open access: yesEnergies, 2022
The present investigation addresses the topic of Urban Air Mobility with particular reference to the air-taxi service with electrified power systems. A new and detailed methodology is proposed for the simplified design and energy analysis of conventional,
Teresa Donateo, Antonio Ficarella
doaj   +1 more source

A Layered Structure Approach to Assure Urban Air Mobility Safety and Efficiency

open access: yesAerospace, 2023
The demand for air mobility services will depend on the safety of these operations but also on the transportation time savings in congested urban areas. An adequate air space structure is therefore essential to achieve both objectives.
Victor Gordo   +8 more
doaj   +1 more source

Modified C-17 taxi procedures: a fuel cost savings exploration [PDF]

open access: yesJournal of Defense Analytics and Logistics, 2020
Purpose – This study aims to explore the viability of using C-17 reduced-engine taxi procedures from a cost savings and capability perspective. Design/methodology/approach – This study model expected engine fuel flow based on the number of operational ...
Michael Wells   +3 more
doaj   +1 more source

The impact of COVID-19 lockdown restrictions on the short-term association between in-vehicle particulate pollutants and the respiratory health of Parisian taxi drivers

open access: yesScandinavian Journal of Work, Environment & Health, 2023
OBJECTIVES: This study assessed the short-term associations between in-vehicle ultrafine particles (UFP) and black carbon (BC) concentrations and irritation symptoms and lung parameters of taxi drivers, pre- and post-lockdown.
Melissa Hachem   +2 more
doaj   +1 more source

A Conceptual Design Methodology for e-VTOL Aircraft for Urban Air Mobility

open access: yesApplied Sciences, 2021
Recent progress of electric systems has raised attention towards hybrid-electric and full-electric aircraft. Nevertheless, the current low battery energy density limits the application of these propulsive architectures to large transport aircraft. In the
Giuseppe Palaia   +4 more
doaj   +1 more source

A Decision-Making Model Using Machine Learning for Improving Dispatching Efficiency in Chengdu Shuangliu Airport

open access: yesComplexity, 2020
Due to the increasing number of people traveling by air, the passenger flow at the airport is increasing, and the problem of passenger drop-off and pickup has a huge impact on urban traffic.
Yingmiao Qian   +6 more
doaj   +1 more source

Urban air mobility and flying cars: Overview, examples, prospects, drawbacks, and solutions

open access: yesOpen Engineering, 2022
Transportation in cities may undergo substantial changes due to two emerging technologies that enable three-dimensional movement of people or cargo. These emerging technologies are urban air mobility (UAM) and flying cars.
Marzouk Osama A.
doaj   +1 more source

Distributed deep reinforcement learning for autonomous aerial eVTOL mobility in drone taxi applications

open access: yesICT Express, 2021
The urban aerial mobility (UAM) system, such as drone taxi or air taxi, is one of future on-demand transportation networks. Among them, electric vertical takeoff and landing (eVTOL) is one of UAM systems that is for identifying the locations of ...
Won Joon Yun   +3 more
doaj   +1 more source

Trajectory generation based on power for urban air mobility

open access: yesFrontiers in Aerospace Engineering, 2023
A method of generating trajectories based on power is proposed for Urban Air Taxis. The method is simpler and more direct than traditional methods because it does not require a detailed aircraft model or a flight control model.
Russell A. Paielli
doaj   +1 more source

Home - About - Disclaimer - Privacy