Zobrazeno 1 - 10
of 695
pro vyhledávání: '"飛行"'
Autor:
WEI Yuan, CHEN Renliang
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 42, Iss 5, Pp 838-846 (2024)
This article analyses the influence of an engine’s dynamic characteristics on a helicopter’s flight quality during hover/low speed forward flight. Firstly, based on the power matching relationship between the engine and the helicopter, a helicopt
Externí odkaz:
https://doaj.org/article/bfd456ecabfd4fd0b2f1bb2099650e43
Publikováno v:
Kongjian kexue xuebao, Vol 44, Pp 575-586 (2024)
空间动物实验是人类空间生命科学研究的重要组成部分. 一直以来, 空间动物实验为探索地球生物体在航天环境中的生命现象及活动规律、支持载人航天的可持续性发展做出了重要贡献. 随着
Externí odkaz:
https://doaj.org/article/fb4cb7e2f7b043cf93866301f01f3c70
Publikováno v:
Tourism Review, 2023, Vol. 79, Issue 2, pp. 378-391.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/TR-11-2022-0557
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 5, Pp 895-904 (2023)
Safety evaluation for ice accretion is one of the most important jobs for the airworthiness certification of commercial aircraft. Ice accretion would induce strong performance degradation of lifting surfaces by modifying the geometry of the leading e
Externí odkaz:
https://doaj.org/article/3340eca7181e44afbf18c56422ec4803
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 5, Pp 878-886 (2023)
In order to reduce the influence of the coupling characteristics between the aircraft and engine of hypersonic vehicle, an integrated aircraft-engine control method of hypersonic vehicle is studied in this paper. Firstly, the control-oriented aircraf
Externí odkaz:
https://doaj.org/article/8990e1589eb24c7fb2cd0e7fa671e923
Publikováno v:
Kongjian kexue xuebao, Vol 43, Pp 711-723 (2023)
超低轨道飞行器在遥感、科学研究等领域具有广泛的应用需求，已成为研究热点之一。由于超低轨的特殊空间环境限制，超低轨道飞行器需要面临和解决很多技术难点，主要集中在大气环境
Externí odkaz:
https://doaj.org/article/20022f13aa524b5c94cedfe0c91e79ea
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 3, Pp 480-489 (2023)
Aerial safety separation is an important indicator to evaluate the flight performance of medium and low speed combination aircraft. In this paper, the concept of impact box and safe separation corridor will be introduced for the air separation proble
Externí odkaz:
https://doaj.org/article/4d637082658d4a5eb93af03fea0eae07
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 3, Pp 490-499 (2023)
This paper studies the dynamic modeling method of fold-able multi-body aircraft based on the dynamics theory of multi-body system. Considering the multi-body aircraft as a complete multi-rigid body system, the dynamic model for the free unfolding pro
Externí odkaz:
https://doaj.org/article/f9230630582a423187e3330c1233124a
Publikováno v:
Kongjian kexue xuebao, Vol 43, Pp 340-351 (2023)
对空间中几十keV到几MeV的中能离子进行成分、能谱和角分布进行测量，具有重要的科学价值和应用意义。中国在载人登月等深空探测计划中明确提出了对中能离子的探测需求，但当前尚未掌
Externí odkaz:
https://doaj.org/article/2ac27331004840849d886edd0433b2a7
Publikováno v:
Zhongshan Daxue xuebao. Yixue kexue ban, Vol 44, Pp 232-243 (2023)
目的基于多组学技术，探讨地塞米松（Dex）能否通过调节肠道菌群及代谢物治疗肺炎。方法将18只Sprague-Dawley大鼠随机均分为对照（Control）组、模型（Model）组和地塞米松（Dex）组，每组6只
Externí odkaz:
https://doaj.org/article/d56ef3844d28412bb2672eec3ef4ff60