Results 11 to 20 of about 524,327 (305)

Application overview and development trend of passive radar in civil aviation

open access: yesThe Journal of Engineering, 2019
The overall technology of passive radar and application overview in civil aviation are reviewed here, and the research history and status in this field are introduced.
Qiang Zhang   +5 more
doaj   +1 more source

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

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

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

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

Graph Coloring for Air Traffic Flow Management [PDF]

open access: yesAnnals of Operations Research, 2004
The aim of Air Traffic Flow Management (ATFM) is to enhance the capacity of the airspace while satisfying Air Traffic Control constraints and airlines requests to optimize their operating costs. This paper presents a design of a new route network that tries to optimize these criteria.
Barnier, Nicolas, Brisset, Pascal
openaire   +4 more sources

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

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

Cap‐oPMN: Oral Inflammatory Load Quantification Using Capillary Microfluidics and Automated Image Processing

open access: yesAdvanced Materials Technologies, EarlyView.
ABSTRACT Quantifying oral polymorphonuclear neutrophils (oPMNs) is a clinically validated approach for assessing periodontal inflammation. However, current methods, such as manual hemocytometry and flow cytometry, are time‐consuming (>3 h), require invasive sampling, and depend on staining and complex instrumentation, making them unsuitable for point ...
Mohsen Hassani   +9 more
wiley   +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

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