Results 41 to 50 of about 4,405,851 (347)

Formulating the cognitive design problem of air traffic management [PDF]

open access: yes, 1998
Evolutionary approaches to cognitive design in the air traffic management (ATM) system can be attributed with a history of delayed developments. This issue is well illustrated in the case of the flight progress strip where attempts to design a computer ...
Dowell, J.
core   +1 more source

Quantum Annealing Applied to De-Conflicting Optimal Trajectories for Air Traffic Management [PDF]

open access: yesIEEE transactions on intelligent transportation systems (Print), 2017
We present the mapping of a class of simplified air traffic management problems (strategic conflict resolution) to quadratic unconstrained Boolean optimization problems.
T. Stollenwerk   +8 more
semanticscholar   +1 more source

Aggravated air pollution and health burden due to traffic congestion in urban China

open access: yesAtmospheric Chemistry and Physics, 2023
. Vehicle emissions are regarded as a primary contributor to air pollution and related adverse health impacts. Heavy traffic congestion increases traffic flow and thus produces more O3 precursor emissions, leading to more adverse air quality issues ...
Pengfei Wang   +8 more
semanticscholar   +1 more source

Reconnaissance Mission Conducted by UAV Swarms Based on Distributed PSO Path Planning Algorithms

open access: yesIEEE Access, 2019
Reconnaissance mission has a wide application in both civil and military fields, which provides intelligence and basis for the following decision-making to accomplish certain goals.
Yubing Wang   +5 more
doaj   +1 more source

Volcanic Ash Region Path Planning Based on Improved A-Star Algorithm

open access: yesJournal of Advanced Transportation, 2022
In civil aviation flight path planning, in order to effectively reduce the safety threat caused by the volcanic ash area to the civil aviation flight, factors such as the speed and acceleration of the aircraft in the volcanic ash area must be considered.
Lan Ma   +3 more
doaj   +1 more source

Estimating and projecting air passenger traffic during the COVID-19 coronavirus outbreak and its socio-economic impact [PDF]

open access: yesSafety Science, 2020
Highlights • This work estimates air passengers worldwide scenarios loss due to Covid-19 pandemia.• The impact on aviation contraction on GDP and jobs worldwide and in EU27 is studied.• In 2020 up to 1.67% of the world GDP could have been lost due to ...
S. Iacus   +4 more
semanticscholar   +1 more source

Air Channel Planning Based on Improved Deep Q-Learning and Artificial Potential Fields

open access: yesAerospace, 2023
With the rapid advancement of unmanned aerial vehicle (UAV) technology, the widespread utilization of UAVs poses significant challenges to urban low-altitude safety and airspace management.
Jie Li   +3 more
doaj   +1 more source

CARBOTRAF: A decision Support system for reducing pollutant emissions by adaptive traffic management [PDF]

open access: yes, 2015
Traffic congestion with frequent “stop & go” situations causes substantial pollutant emissions. Black carbon (BC) is a good indicator of combustion-related air pollution and results in negative health effects.
Beckx, C   +12 more
core  

Trajectory clustering of air traffic flows around airports

open access: yesAerospace Science and Technology, 2019
We present a new approach to separate air traffic trajectories in an area constrained by operational procedures. This technique is applied on a set of real trajectories in Toulouse terminal manoeuvring area (TMA).
X. Olive, J. Morio
semanticscholar   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

open access: yesMolecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken   +7 more
wiley   +1 more source

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