Results 31 to 40 of about 385,072 (324)

Minimum covariance determinant-based bootstrapping for appraising air passenger arrival data [PDF]

Journal of Engineering Management and Competitiveness, 2022
Air travel management is a case-special process since it includes different types of uncertainties such as ungovernable passenger mobility, variable costs as well as extraordinary restrictions like the Covid-19 pandemic.
Tutmez Bulent
doaj   +1 more source

Review of Control Technologies for Quiet Operations of Advanced Air-Mobility

Applied Sciences, 2023
The current technologies for developing quiet rotor noise in urban canyons are reviewed. Several passive noise control approaches are discussed with their limitations in reducing both tonal and broadband noise.
Samuel Afari, Vladimir Golubev, Anastasios S. Lyrintzis, Reda Mankbadi   +3 more
doaj   +1 more source

Geographic features of zero-emissions urban mobility: the case of electric buses in Europe and Belarus [PDF]

, 2019
This article reviews the emerging phenomena of electric buses’ deployment in Europe and Belarus within the general framework of the concept of sustainable and electric urban mobility.
Bezruchonak, Andrei
core   +1 more source

Estimating the Economic Viability of Advanced Air Mobility Use Cases: Towards the Slope of Enlightenment

Drones, 2023
While different vehicle configurations enter the AAM market, airlines declare different ticket fares for their operations. This research investigates the operating cost of an airline and the economic viability with the announced fare per km rates.
Jan Pertz, Malte Niklaß, Majed Swaid, Volker Gollnick, Sven Kopera, Kolin Schunck, Stephan Baur   +6 more
doaj   +1 more source

Autonomous Advanced Aerial Mobility—An End-to-End Autonomy Framework for UAVs and Beyond

IEEE Access, 2023
Developing aerial robots that can both safely navigate and execute assigned mission without any human intervention – i.e., fully autonomous aerial mobility of passengers and goods – is the larger vision that guides the research, design, and
Sakshi Mishra, Praveen Palanisamy
doaj   +1 more source

Survey data on public perceptions towards flying cars and flying taxi services

Data in Brief, 2022
An online survey was conducted to evaluate public perceptions towards an emerging transportation technology, namely the flying car, which is expected to join the existing traffic fleet within the following decades.
Ugur Eker, Grigorios Fountas, Sheikh Shahriar Ahmed, Panagiotis Ch. Anastasopoulos   +3 more
doaj   +1 more source

Numerical study of passive thermal management for a high-temperature, high-speed rotary joint using an internal air gap

Frontiers in Mechanical Engineering
Excessive axial heat transfer through the shaft of high-speed rotary systems exposed to hot fluids can cause bearing overheating, lubricant degradation, thermal expansion-induced interference, and premature failure.
Jeong-Hwa Kim, Byung-Hyun Choi
doaj   +1 more source

Prediction and Control of Broadband Noise Associated with Advanced Air Mobility—A Review

Applied Sciences
This review presents an overview of advanced air mobility broadband noise (BBN) prediction and control techniques, highlighting significant advancements in various prediction models.
Jie Hua, Reda R. Mankbadi
doaj   +1 more source

Assessment of Advanced Air Mobility Vehicle Integration at the Orlando International Airport

Aerospace
This study aimed to assess the potential operational implications of integrating Advanced Air Mobility (AAM) traffic at the Orlando International Airport (MCO) Class Bravo airspace.
Victor Fraticelli Rivera, Robert Thomas, Carlos Castro Peña, Sakurako Kuba   +3 more
doaj   +1 more source

Flat Cellular (UMTS) Networks [PDF]

, 2007
Traditionally, cellular systems have been built in a hierarchical manner: many specialized cellular access network elements that collectively form a hierarchical cellular system.
Bosch, H.G.P., Mullender, S.J., Polakos, P., Rittenhouse, G., Samuel, L.G.   +4 more
core   +8 more sources