Results 11 to 20 of about 521,308 (308)

Infering Air Quality from Traffic Data using Transferable Neural Network Models [PDF]

open access: yes, 2018
This work presents a neural network based model for inferring air quality from traffic measurements. It is important to obtain information on air quality in urban environments in order to meet legislative and policy requirements.
A Pelliccioni   +14 more
core   +3 more sources

Comparative Analysis of Instrumental and Manual Visibility Observations at Xiamen Airport and the Influence of Relative Humidity

open access: yesApplied Sciences, 2023
Visibility is a major factor affecting the safety and efficiency of aviation operations. As instrumental visibility measurements are the basis for calculating runway visual range, measurement accuracy is crucial.
Hangdong Jiang   +6 more
doaj   +1 more source

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

Short-Term Trajectory Prediction Based on Hyperparametric Optimisation and a Dual Attention Mechanism

open access: yesAerospace, 2022
Highly accurate trajectory prediction models can achieve route optimisation and save airspace resources, which is a crucial technology and research focus for the new generation of intelligent air traffic control.
Weijie Ding   +6 more
doaj   +1 more source

Probabilistic Conflict Detection Using Heteroscedastic Gaussian Process and Bayesian Optimization

open access: yesIEEE Access, 2023
Conflict detection plays a crucial role in ensuring flight safety and efficiency and is a critical component of an air traffic control system. Despite the availability of tools to support air traffic controllers in identifying potential conflicts, their ...
Duc-Thinh Pham   +3 more
doaj   +1 more source

The air quality impact of cordon and distance based road user charging: an empirical study of Leeds, U.K [PDF]

open access: yes, 2005
Traffic assignment, pollutant emission and dispersion models were applied to a major UK city so as to assess the air quality impacts of five road pricing schemes.
Milne, D.S., Mitchell, G., Namdeo, A.K.
core   +1 more source

Controller Fatigue State Detection Based on ES-DFNN

open access: yesAerospace, 2021
The fatiguing work of air traffic controllers inevitably threatens air traffic safety. Determining whether eyes are in an open or closed state is currently the main method for detecting fatigue in air traffic controllers.
Haijun Liang   +5 more
doaj   +1 more source

A Simulation Framework for Fast Design Space Exploration of Unmanned Air System Traffic Management Policies

open access: yes, 2019
The number of daily small Unmanned Aircraft Systems (sUAS) operations in uncontrolled low altitude airspace is expected to reach into the millions. UAS Traffic Management (UTM) is an emerging concept aiming at the safe and efficient management of such ...
Basti, Franco   +6 more
core   +1 more source

Identifying key nodes in complex networks based on an improved gravity model

open access: yesFrontiers in Physics, 2023
The identification of key nodes in complex networks is a hot topic. Therefore, it attracts increasing attention from different fields, like airline networks and social networks. To identify the key nodes in complex network, we suggest an improved gravity
Linfeng Zhong   +8 more
doaj   +1 more source

Speech GAU: A Single Head Attention for Mandarin Speech Recognition for Air Traffic Control

open access: yesAerospace, 2022
The rise of end-to-end (E2E) speech recognition technology in recent years has overturned the design pattern of cascading multiple subtasks in classical speech recognition and achieved direct mapping of speech input signals to text labels. In this study,
Shiyu Zhang   +4 more
doaj   +1 more source

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