Results 51 to 60 of about 745 (202)

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, Volume 2, Issue 2, April 2026.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

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

Mathematics, 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

Investigating the Detectability of Body Wave Phases From Tidal Ice Cracking Events on Titan With the Dragonfly Short‐Period Seismometer

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting seismic activity on Saturn's icy moon Titan during the Dragonfly mission could provide crucial information on its internal structure. The geological complexity of the moon's surface suggests significant cyclic tidal deformation, likely leading to the fracturing of the ice shell.
L. Delaroque, T. Kawamura, A. Lucas, S. Rodriguez, K. Onodera, H. Shiraishi, R. Yamada, S. Tanaka, M. P. Panning, R. D. Lorenz   +9 more
wiley   +1 more source

Multi‐Task Learning for Airport Surface Surveillance: A Review

Expert Systems, Volume 43, Issue 4, April 2026.
ABSTRACT The rapid growth of air transportation has surpassed the capabilities of traditional airport surveillance methods, such as visual observation and auxiliary equipment (e.g., ADS‐B, MLAT, radar), which struggle to provide all‐area, all‐weather situation awareness.
Daoyong Fu, Xiangtong Wang, Fangrui Wu, Songchen Han, Binbin Liang, Wei Li, Ke Yang   +6 more
wiley   +1 more source

A Framework of a Power Management System for a Hybrid Electric VTOL Aircraft using Optimal Control

, 2022
The operation of a hybrid fixed-wing vertical takeoff and landing unmanned aerial vehicle (VTOL UAV) is assessed using an optimal control framework for the most energy-efficient and time-efficient trajectories.
Pham, Duc Ngoc
core  

Online Deterministic 3D Trajectory Generation for Electric Vertical Take-Off and Landing Aircraft

Aerospace
The use of non-piloted eVTOL aircraft in non-segregated airspace requires reliable and deterministic automatic flight guidance systems for the aircraft to remain predictable to all the users of the airspace and maintain a high level of safety.
Zoe Mbikayi, Agnes Steinert, Dominik Heimsch, Moritz Speckmaier, Philippe Rudolph, Hugh Liu, Florian Holzapfel   +6 more
doaj   +1 more source

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee, Sumin Jung, Jinwoo Jang, Yeji Han, Minchae Kang, Jihun Seong, Suyeon Seo, Eunsol Park, Haesol Kwak, Min‐Woo Han   +9 more
wiley   +1 more source

Comparative Evaluation of Propulsive Power Transmission Technologies for High-Speed Vertical Takeoff and Landing (HSVTOL) Cargo Aircraft

, 2023
Designing High-Speed Vertical Takeoff and Landing (HSVTOL) cargo aircraft capable of both low downwash velocity hovering and high subsonic speed cruising presents a significant engineering challenge.
Yang, Xinyu
core  

Hybrid Deep Learning‐Based Networks for Deterministic and Probabilistic Wind Nowcasting Within a Wake Vortex Warning System for Vertiport Operations

Meteorological Applications, Volume 33, Issue 2, March/April 2026.
This paper proposes an innovative framework for deterministic and probabilistic wind nowcasting consisting of various machine learning methods. The reliable short‐term wind predictions drive the Wake Vortex Warning System for Vertiports (WVWS‐V), which may enable safe air‐taxi operations at major airports. ABSTRACT Accurate wind prediction is essential
Sooseok Lee, Frank Holzäpfel, Anton Stephan, Dieter Moormann   +3 more
wiley   +1 more source

Multiobjective Time and Control Effort Optimization of the Takeoff and Transition of a Bi-wing Tailsitter

, 2020
Electric vertical takeoff and landing (eVTOL) aircraft are being actively developed by manyindustry and government research groups. These vehicles take advantage of distributed electricpropulsion as well as aerodynamic lifting surfaces to take off ...
Ryan Anderson (8718120), Jacob B. Willis (8718114), Jacob Johnson (8715459)   +2 more
core   +1 more source