Results 41 to 50 of about 13,202 (212)
Systems Engineering, EarlyView.ABSTRACT System of Systems (SoS) environments are inherently complex, involving numerous operationally and managerially independent component systems with hidden interdependencies and frequent interactions based on unstructured data. In this paper, we propose using graphical Retrieval‐Augmented Generation (GraphRAG), a tool that combines large language
Yinchien Huang +2 more
wiley +1 more source
Reconstructing urban wind flows for urban air mobility using reduced-order data assimilation
Theoretical and Applied Mechanics Letters, 2023 Advancements in uncrewed aircrafts and communications technologies have led to a wave of interest and investment in unmanned aircraft systems (UASs) and urban air mobility (UAM) vehicles over the past decade. To support this emerging aviation application,
Mounir Chrit
doaj +1 more source
Public Health Challenges, Volume 4, Issue 4, December 2025.The graphical abstract illustrates the pathways driving children into beach vending—economic hardship, psychosocial influences, and environmental factors—and their lived experiences, including physical challenges, deprivation, and psychological impacts. It visually highlights the push‐pull dynamics and underscores the need for targeted interventions to
Md. Ziaul Islam +7 more
wiley +1 more source
Safety-Focused Framework for Enabling UAS Traffic Management in Urban Environment
AIAA AVIATION 2022 Forum, 2022 While recent emergence of multirotor UAS as a transport option in urban area promises to unlock the vertical dimension and greatly increase the transportation capacity, managing the safety and efficiency of UAS operations in the complex and densely populated very-low altitude urban airspace could be challenging.
Wang, John Chung-Hung +4 more
openaire +2 more sources
Global Experience in the Use of Unmanned Aviation Technologies in Public Administration: a Review
Управленческие наукиTUnmanned Aerial Systems (UAS), despite their relative novelty, are already an integral component of the general aviation structure, and, based on a number of complex and sophisticated solutions, including those related to artificial intelligence, are ...
А. А. Sazanova
doaj +1 more source
A Performance-Based Airspace Model for Unmanned Aircraft Systems Traffic Management
Aerospace, 2020 Recent evolutions of the Unmanned Aircraft Systems (UAS) Traffic Management (UTM) concept are driving the introduction of new airspace structures and classifications, which must be suitable for low-altitude airspace and provide the required level of ...
Nichakorn Pongsakornsathien +6 more
doaj +1 more source
Galileo and EGNOS as an asset for UTM safety and security [PDF]
, 2019 GAUSS (Galileo-EGNOS as an Asset for UTM Safety and Security) is a H2020 project1 that aims at designing and developing high performance positioning systems for drones within the U-Space framework focusing on UAS (Unmanned Aircraft System) VLL (Very Low ...
Andrade-Cetto, Juan +7 more
core
Space Weather, Volume 23, Issue 11, November 2025.Abstract Satellite navigation systems are vulnerable to space weather disturbances, which can degrade positioning accuracy and potentially increase the collision risk of unmanned aerial vehicles (UAVs). This study investigates the influence of navigation errors caused by ionospheric scintillation on UAV encounter scenarios. Two route configurations are
Dabin Xue +4 more
wiley +1 more source
Aerospace, 2023 This paper explores the use of deep reinforcement learning in solving the multi-agent aircraft traffic planning (individual paths) and collision avoidance problem for a multiple UAS, such as that for a cargo drone network.
Shao Xuan Seah, Sutthiphong Srigrarom
doaj +1 more source
Aerospace, 2023 This paper presents a methodology for designing a highly reliable Air Traffic Management and Control (ATMC) methodology using Neural Networks and Peer-to-Peer (P2P) blockchain. A novel data-driven algorithm was designed for Aircraft Trajectory Prediction
Seyed Mohammad Hashemi +3 more
doaj +1 more source