Results 31 to 40 of about 362,448 (239)

Optimal Tilt-Wing eVTOL Takeoff Trajectory Prediction Using Regression Generative Adversarial Networks

open access: yesMathematics, 2023
Electric vertical takeoff and landing (eVTOL) aircraft have attracted tremendous attention nowadays due to their flexible maneuverability, precise control, cost efficiency, and low noise.
Shuan-Tai Yeh, Xiaosong Du
doaj   +1 more source

Optimization Design of Fluoro-Cyanogen Copolymer Electrolyte to Achieve 4.7 V High-Voltage Solid Lithium Metal Battery. [PDF]

open access: yesAdv Sci (Weinh)
A 4.7 V high‐voltage solid copolymer electrolyte (PAFP) containing fluoro‐cyanogen group with ultrahigh ionic conductivity (1.2 mS cm−2) at 25 °C, high Li+ transference number (0.71) and superior electrochemical window (5.5 V), is designed and synthesized by polymer molecular engineering.
Xu W   +10 more
europepmc   +2 more sources

Urban Air Mobility: Viability of Hub-Door and Door-Door Movement by Air [PDF]

open access: yes, 2020
Owing to a century of innovation in connected and automated aircraft design, for the rst time in history, air transport presents a potential competitive alternative to road, for hub-to-door and door-to-door urban services.
Bulusu, Vishwanath, Sengupta, Raja
core  

Improved Conceptual Design of eVTOL Aircraft: Considering Rotor–Rotor Interactional Effects

open access: yesInternational Journal of Aeronautical and Space Sciences
Electric vertical takeoff and landing (eVTOL) aircraft equipped with a distributed electric propulsion (DEP) system have rotors positioned close to one another, leading to unsteady rotor–rotor interactions.
Hojin Kim   +3 more
semanticscholar   +1 more source

Addressing Complexity in System of Systems With GraphRAG: An AI‐Driven Framework for Dynamic Data Integration

open access: yesSystems 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

Experimental Study on Fire Resistance of Electric Vertical Take-Off and Landing Electrical Connector

open access: yesEngineering Proceedings
As a core technology in the future of aviation transportation, the safety and reliability of electric vertical take-off and landing (eVTOL) aircraft are of paramount importance.
Tai Zeng   +5 more
doaj   +1 more source

Identification of Missing Knowledge in MBSE System Models Using Graph‐Based Machine Learning

open access: yesSystems Engineering, EarlyView.
ABSTRACT The design and development of complex aerospace systems pose significant challenges due to their growing complexity. Iterative design processes, guided by formal specifications, strive to refine initially vague characteristics through multiple stages.
Esma Karagoz   +2 more
wiley   +1 more source

Developing Alsim AL250 based eVTOL flight simulator

open access: yesAviation
A novel eVTOL aircraft simulator was developed for research and teaching purposes. The simulator integrated MATLAB/Simulink flight dynamics model with Alsim AL250 FNPT II flight simulator.
Vilius Portapas
doaj   +1 more source

Space Weather and Low‐Altitude Drone Economy

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract Unmanned Aerial Vehicles (UAVs) are becoming integral to the emerging low‐altitude economy, operating primarily below 3,000 m for applications such as logistics, inspection, precision agriculture, and urban air mobility. The safe and reliable operation of UAVs depends critically on communication, navigation, and surveillance (CNS) systems ...
Dabin Xue   +3 more
wiley   +1 more source

Weight minimization of electric vertical takeoff and landing aircraft: From the comprehensive powertrain perspective

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper proposes a conceptual design optimization method for the powertrain of electric vertical takeoff and landing (eVTOL) aircraft. The converter selection, semiconductor device selection, inductor design, capacitor selection, and thermal ...
Zeyu Cheng   +3 more
doaj   +1 more source

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