Results 11 to 20 of about 73,265 (267)

Invulnerability Analysis and Optimization Strategy of Sector Network Using Cascading Failure Model

open access: yesComplexity, 2022
Resolving the challenge of flight delays caused by air traffic congestion renders it necessary to explore the mode of congestion propagation. By applying complex network theory, this article establishes a complex network structure where airspace sectors ...
Haijun Liang, Jingyu Lu, Nan Chen
doaj   +1 more source

Factored Multi-Agent Soft Actor-Critic for Cooperative Multi-Target Tracking of UAV Swarms

open access: yesDrones, 2023
In recent years, significant progress has been made in the multi-target tracking (MTT) of unmanned aerial vehicle (UAV) swarms. Most existing MTT approaches rely on the ideal assumption of a pre-set target trajectory. However, in practice, the trajectory
Longfei Yue   +5 more
doaj   +1 more source

Deep Reinforcement Learning for UAV Intelligent Mission Planning

open access: yesComplexity, 2022
Rapid and precise air operation mission planning is a key technology in unmanned aerial vehicles (UAVs) autonomous combat in battles. In this paper, an end-to-end UAV intelligent mission planning method based on deep reinforcement learning (DRL) is ...
Longfei Yue   +4 more
doaj   +1 more source

Trajectory Prediction of Target Aircraft Based on HPSO-TPFENN Neural Network

open access: yesXibei Gongye Daxue Xuebao, 2019
Trajectory prediction plays an important role in modern air combat. Aiming at the large degree of modern simplification, low prediction accuracy, poor authenticity and reliability of data sample in traditional methods, a trajectory prediction method ...

doaj   +1 more source

An ADS-B Information-Based Collision Avoidance Methodology to UAV

open access: yesActuators, 2023
A collision avoidance method that is specifically tailored for UAVs (unmanned aerial vehicles) operating in converging airspace is proposed. The method is based on ADS-B messages and it aims to detect and resolve conflicts between UAVs.
Liang Tong   +4 more
doaj   +1 more source

Two-Layer Optimization Algorithm for Multi-UAV Conflict Resolution considering Individual Fairness

open access: yesInternational Journal of Aerospace Engineering, 2021
In order to solve the unfair individual payment costs problem in the low-altitude unmanned aerial vehicle (UAV) conflict resolution process, a multi-UAV conflict resolution algorithm based on the cooperative game concept “coalition complaint value” is ...
Xusheng Gan   +5 more
doaj   +1 more source

On Robustness Paradox in Air Traffic Networks [PDF]

open access: yesIEEE Transactions on Network Science and Engineering, 2020
Air traffic is operated in an air traffic network (ATN) environment. It is pertinent to improve the robustness of ATNs as they are frequently exposed to manifold uncertainties which can break down their functioning components. Existing studies improve the robustness of an ATN by either rewiring its links or adding more ones.
Qing Cai, Sameer Alam, Vu N. Duong
openaire   +2 more sources

Air Traffic Volume and Air Traffic Control Human Errors

open access: yesJournal of Transportation Technologies, 2011
Navigable airspaces are becoming more crowded with increasing air traffic, and the number of accidents caused by human errors is increasing. The main objective of this paper is to evaluate the relationship between air traffic volume and human error in air traffic control (ATC).
Woo-Choon Moon   +2 more
openaire   +1 more source

A Normal Wiggly Pythagorean Hesitant Fuzzy Bidirectional Projection Method and Its Application in EV Power Battery Recycling Mode Selection

open access: yesIEEE Access, 2020
As a useful mathematical tool to solve the multi-attribute decision-making (MADM) problems, Pythagorean hesitant fuzzy set (PHFS) permits decision makers (DMs) to give several evaluation values in membership and non-membership degrees.
Chengxiu Yang   +4 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

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