Results 51 to 60 of about 174,019 (210)

The Architecture Optimization and Energy Management Technology of Aircraft Power Systems: A Review and Future Trends

Energies, 2022
With the development of More/All-Electric Aircraft, especially the progress of hybrid electrical propulsion or electrical propulsion aircraft, the problem of optimizing the energy system design and operation of the aircraft must be solved regarding the ...
Tao Lei, Zhihao Min, Qinxiang Gao, Lina Song, Xingyu Zhang, Xiaobin Zhang   +5 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

A direct-drive solution for Hydrogen supplied all-electric airplane [PDF]

, 2009
This paper present a solution for traction motor in ultra light motored (ULM) aircraft applications. A new All electric aircraft is here presented with a hydrogen supplied fuel-cell system and a direct-drive configuration for traction motor.
Bruno, Massimo, Gadrino, F., Griva, Giovanni Battista, Guglielmi, Paolo, Lamberi, R., Maggiore, Paolo, Pellegrino, Gian-Mario Luigi, Villata, Franco   +7 more
core   +1 more source

A Wearable Brain–Computer Interface for Mitigating Car Sickness via Attention Shifting

Advanced Science, EarlyView.
Car sickness poses a major challenge in vehicular travel, yet effective nonpharmacological solutions are scarce. We developed a wearable, closed‐loop mindfulness BCI that uses real‐time EEG‐based neurofeedback to shift attention away from motion‐induced discomfort. Validated in real‐car experiments involving >100$>100$ susceptible individuals, over 83%
Jiawei Zhu, Xiaoyu Bao, Qiyun Huang, Tao Wang, Li Huang, Haiyun Huang, Junbiao Zhu, Jun Qu, Kendi Li, Di Chen, Ya Jiang, Kailin Xu, Zijian Wang, Wei Wu, Yuanqing Li   +14 more
wiley   +1 more source

Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window

Advanced Science, EarlyView.
Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim, Geunpil Kim, Hwijoon Jeong, Sk Mujaffar Hossain, Satadeep Bhattacharjee, Minjae Isaac Kwon, Yeunjeong Lee, Chanhee Yang, Yeong Seok Ham, Taek‐Soo Kim, Hyowon Moon, Inkyu Park, Seung‐Cheol Lee, Jinhwan Kim, Jongbum Kim, Jaehyun Park   +15 more
wiley   +1 more source

Aircraft electric power plants

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The paper presents a review of electrification of the existing propulsion systems and creating new hybrid propulsion systems based on the concept of more electric aircraft and all-electric aircraft in Russia and abroad.
A. D. Kondryakov, M. K. Leontiev
doaj   +1 more source

Design and Optimization of Ram Air–Based Thermal Management Systems for Hybrid-Electric Aircraft

Aerospace, 2020
Ram air–based thermal management systems (TMS) are investigated herein for the cooling of future hybrid-electric aircraft. The developed TMS model consists of all components required to estimate the impacts of mass, drag, and fuel burn on the aircraft ...
Hagen Kellermann, Michael Lüdemann, Markus Pohl, Mirko Hornung   +3 more
doaj   +1 more source

Development and Challenge of More/All Electric Aircraft

Highlights in Science, Engineering and Technology, 2023
With the rapid development of the aviation industry and the increasing environmental concern, the electrification of aircraft has become a leading research topic in aviation. More Electric Aircraft (MEA) and All Electric Aircraft (AEA) are two classifications of this field.
openaire   +1 more source

Next generation design framework for the aircraft electric power system [PDF]

, 2014
Comprehensive understanding and analysis of the more electric aircraft network architecture (MEA) usually require a powerful simulation framework, which allows modelling, simulation and post-processing of aircraft electric power systems.
Ji, Yang, Kuhn, Martin R.
core  

A Novel Metal Foam‐Supported Solid Oxide Fuel Cell With High Specific Power

Advanced Science, EarlyView.
Solid oxide fuel cells (SOFCs) employing metal foam supports with an ultrahigh porosity of 90% and average pore size of 100 µm are successfully fabricated. The metal foam architecture significantly enhances gas diffusion coefficients, effectively reducing concentration polarization while simultaneously decreasing areal mass.
Jingbo Ma, Ying Yang, Meng Ni, Yanxiang Zhang, Mufu Yan   +4 more
wiley   +1 more source