Results 51 to 60 of about 7,657 (227)

An Obstacle Avoidance Trajectory Planning Methodology Based on Energy Minimization (OTPEM) for the Tilt-Wing eVTOL in the Takeoff Phase

World Electric Vehicle Journal
Electric tilt-wing flying cars are an efficient, economical, and environmentally friendly solution to urban traffic congestion and travel efficiency issues.
Guangyu Zheng, Peng Li, Dongsu Wu
doaj   +1 more source

Adaptive Neuro‐Fuzzy Inference System‐Based Sliding Mode Control in the Presence of External Disturbances and Parameter Variation for Quadcopter UAV

Engineering Reports, Volume 7, Issue 10, October 2025.
The helical trajectory of a quadcopter is a three‐dimensional path in the presence of disturbance. ABSTRACT Quadrotor unmanned aerial vehicles (UAVs) are increasingly becoming essential tools in applications such as surveillance, military operations, crop monitoring, search and rescue, and inspection of hazardous terrain.
Daniel Fikadu Assefa, Elisabeth Andarge Gedefaw, Chala Merga Abdissa, Lebsework Negash Lemma   +3 more
wiley   +1 more source

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

Engineering 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, Bin Wu, Kai Wang, Zhengliang Su, Fei Xie, Tianming Wang   +5 more
doaj   +1 more source

Design of a remotely piloted vehicle for a low Reynolds number station keeping mission [PDF]

Six teams of senior level Aerospace Engineering undergraduates were given a request for proposal, asking for a design concept for a remotely piloted vehicle (RPV). This RPV was to be designed to fly at a target Reynolds number of 1 times 10(exp 5).

core   +1 more source

Insight into Mo2C Nanoplates Growth by Means of Scanning Electrochemical Cell Microscopy for High‐Resolution Electrocatalytic Hydrogen Evolution Activity Mapping

Small Science, Volume 5, Issue 10, October 2025.
High‐resolution scanning electrochemical cell microscopy reveals a size‐activity relationship in hexagonal α‐Mo2C nanoplates for the hydrogen evolution reaction (HER). Smaller nanoplates (<10 μm) show superior catalytic activity due to minimal native oxide species formation, low presence of step‐edges, and residual material.
Geovane Arruda de Oliveira, David E. Sanchez, Alexander J. Sredenschek, Andres Fest, Moonjoo Kim, Carla Santana Santos, Mauricio Terrones, Wolfgang Schuhmann, Daniel Grasseschi   +8 more
wiley   +1 more source

Research on the Requirement Validation Process of an eVTOL Aircraft

Engineering Proceedings
According to the SAEARP4754B standard, the positive development of electric vertical takeoff and landing (eVTOL) aircraft must carry out requirement management in order to ensure the traceability of requirements.
Haiyun Yang, Yiheng Li, Jing Hu
doaj   +1 more source

V/STOL lift fan commercial short haul transports: Continuing conceptual design study [PDF]

A design study of commercial V/STOL transport airplanes for a 1985 operational time period has been made. The baseline mission considered was 400 nmi at a cruise speed of M = 0.75 and a 100-passenger payload with VTOL.
Bohn, J. G., Derbyshire, T., Mcbarron, J. P., Middlebrooks, J. E., Miller, C. W., Minkler, W. F., Williams, B., Zabinsky, J. M.   +7 more
core   +1 more source

Environmental infringement and sag estimation for power transmission lines with unmanned aerial vehicles and multi‐modal sensors

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 25, Page 4342-4363, 20 October 2025.
Abstract This paper proposes an advanced unmanned aerial vehicle‐based framework that integrates three‐dimensional LiDAR and infrared camera measurements for environmental infringement assessment. The proposed framework features three characteristics. First, multi‐sensor measurements are fused for environmental infringement.
Siheon Jeong, Munsu Jeon, Jae‐Kyeong Lee, Ki‐Yong Oh   +3 more
wiley   +1 more source

Optimal Design and Design Parameter Sensitivity Analyses of an eVTOL PAV in the Conceptual Design Phase

Applied Sciences, 2020
An optimization study of an electric vertical takeoff and landing personal air vehicle (eVTOL PAV) was performed during the conceptual design stage using the design of experiments method. In defining the initial problem, a design target parameter was set.
Bong-Sul Lee, Abera Tullu, Ho-Yon Hwang
doaj   +1 more source

The Mars airplane [PDF]

The concept of the Mars airplane was developed as a potential vehicle for unmanned Mars exploration. It is suggested that its most appropriate use would be as an unmanned adjunct to a manned mission.
French, J. R.
core   +1 more source