Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Unpowered flight"'
Autor:
Xinge Yu, Yechan Lee, Yihui Zhang, Chi Hwan Lee, Leonardo P. Chamorro, Sang Min Won, Hokyung Jang, Juyun Kim, Kun Hyuck Lee, Yoonseok Park, Ted S. Chung, Heon Lee, Jiwoong Kim, Yei Hwan Jung, Jin-Tae Kim, Ying Zhao, Cai Tengfei, Zhaoqian Xie, Geumbee Lee, Yongjoon Yu, Bong Hoon Kim, Haiwen Luan, Raudel Avila, Xueju Wang, Yeonha Kim, Woo Jin Jang, Yonggang Huang, Lin Chen, Honglie Song, Seung Yun Heo, Hong-Joon Yoon, Soong Ju Oh, Kan Li, Seung Ho Han, Feng Zhu, Poom Prasopsukh, John A. Rogers
Publikováno v:
Nature. 597:503-510
Large, distributed collections of miniaturized, wireless electronic devices1,2 may form the basis of future systems for environmental monitoring3, population surveillance4, disease management5 and other applications that demand coverage over expansiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19ec2381ee29861311a2c44763cdfacd
https://doi.org/10.1038/s41586-021-03847-y
https://doi.org/10.1038/s41586-021-03847-y
Publikováno v:
2021 International Conference on Unmanned Aircraft Systems (ICUAS).
Unmanned Aerial Gliders (UAGs), are a class fixed-wing Unmanned Aerial Vehicles (UAVs) that are particularly well-suited to applications involving long endurance and range. By relying on atmospheric energy, most commonly in the form of thermal updraf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9949d014afcc8f76f6437e953fff203d
https://doi.org/10.1109/icuas51884.2021.9476839
https://doi.org/10.1109/icuas51884.2021.9476839
Publikováno v:
IFAC-PapersOnLine. 52:724-729
This paper deals with missile longitudinal dynamics control. The angle of attack tracking problem is considered for an unpowered flight phase of a short range tail-controlled missile with the zero engine thrust. For the control synthesis, a simplifie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c87a9451f1c097d67f2ffbb841d6168a
https://doi.org/10.1016/j.ifacol.2019.12.048
https://doi.org/10.1016/j.ifacol.2019.12.048
Publikováno v:
Applied Sciences, Vol 7, Iss 10, p 1061 (2017)
The endurance of an aircraft can be considerably extended by its exploitation of the hidden energy of a wind gradient, as an albatross does. The process is referred to as dynamic soaring and there are two methods for its implementation, namely, susta
Externí odkaz:
https://doaj.org/article/e9de6377b50645d0ac222426aeb9bf82
Conference
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Publikováno v:
Journal of Fluid Mechanics. 801:250-259
The free fall of heavy bodies in a viscous fluid medium is a problem of interest to many engineering and scientific disciplines, including the study of unpowered flight and seed dispersal. The falling behaviour of coins and thin discs in particular h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a647f371974893a55e7ba60003cf2edc
https://doi.org/10.1017/jfm.2016.432
https://doi.org/10.1017/jfm.2016.432
Publikováno v:
Journal of Spacecraft and Rockets. 53:340-353
The Skylon concept incorporates the highly innovative synergetic air-breathing rocket engine concept that has the potential to revolutionize the mode of propulsion for transportation of medium-weight payloads to low Earth orbits. An independent parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ab19639ceac836a26c7627148940e75
https://doi.org/10.2514/1.a33408
https://doi.org/10.2514/1.a33408
Publikováno v:
Vietnam Journal of Science and Technology. 57:43
This report presents problems of optimization of long-range trajectory for an unpowered flight vehicle at subsonic and transonic speed. The results may be recommended to have a new long range trajectory. The optimization problem is solved by numerica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::087261b880810772d6de5f5d3897b751
https://doi.org/10.15625/2525-2518/57/4a/14012
https://doi.org/10.15625/2525-2518/57/4a/14012
Publikováno v:
Journal of thermal biology. 71
Drag reduction of the wings of migrating birds is crucial to their flight efficiency. Wing color impacts absorption of solar irradiation which may affect drag but there is little known in this area. To this end, the drag reduction induced by the ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8950881d205a11a3bd5406a530ba5596
https://pubmed.ncbi.nlm.nih.gov/29301679
https://pubmed.ncbi.nlm.nih.gov/29301679
Publikováno v:
AIP Conference Proceedings.
Flight is the main mode of locomotion used by most of the world’s bird & insect species. This article discusses the mechanics of bird flight, with emphasis on the varied forms of bird’s & insect’s wings. The fundamentals of bird flight are simi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e68f6b64568515a179185e3b84413ab6
https://doi.org/10.1063/1.4984685
https://doi.org/10.1063/1.4984685