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The longitudinal relationship between helicopter parenting and depressive symptoms among university students: the serial mediating roles of exercise behavior and physical self-esteem [PDF]
Frontiers in PsychologyHelicopter parenting has been linked to adverse mental health outcomes, yet the longitudinal mechanisms through which it may contribute to depressive symptoms remain unclear; this study examined the prospective association between helicopter parenting ...
Yuqing Wang +9 more
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Research on attack landing method of air cushion landing craft covered by armed helicopter [PDF]
Zhihui kongzhi yu fangzhen, 2023 In view of the possible threats faced by air cushion landing craft in the process of assault landing, the regional cover and the accompanying cover method of air cushion landing craft by armed helicopter are proposed.In the area cover, the calculation ...
YIN Cheng-yi
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Aerospace, 2023 This paper focuses on robust controller design for a generic helicopter model and terrain avoidance problem via artificial intelligence (AI). The helicopter model is presented as a hybrid system that covers hover and forward dynamics.
Baris Baspinar
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Lie-Group Modeling and Numerical Simulation of a Helicopter
Mathematics, 2021 Helicopters are extraordinarily complex mechanisms. Such complexity makes it difficult to model, simulate and pilot a helicopter. The present paper proposes a mathematical model of a fantail helicopter type based on Lie-group theory.
Alessandro Tarsi, Simone Fiori
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Journal of Marine Science and Engineering, 2022 Landing a helicopter to the ship flight deck is most demanding even for the most experienced pilots and modeling and simulation of the ship-helicopter dynamic interface is a substantially challenging technical problem. In this paper, a coupling numerical
Yihua Cao +3 more
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Attitude control of mine inspection unmanned helicopter based on cellular membrane computing
Gong-kuang zidonghua, 2021 The effective attitude control of mine inspection unmanned helicopter is an important manifestation of the pros and cons of inspection capabilities.
XU Jiachang1 +4 more
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Research on Rapid Assembly Technology of Helicopter Transmissions [PDF]
MATEC Web of Conferences, 2020 Research and application of rapid assembly technology can widely improve the design efficiency of helicopter transmissions. An assembly model of helicopter transmissions is presented by introducing Geometric Constraint Graph (GCG) method.
Haiwei Wang, Lulu Li, Sheng Yuan
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Research on Slung-load Swing Control Method in Helicopter Suspension Flight
Hangkong gongcheng jinzhan, 2022 For helicopter with large suspension load,the coupling between helicopter body and load will significantly affect the maneuverability and stability of the helicopter.
ZHANG Song, MA Zhao, ZHANG Hui
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International Journal of Aerospace Engineering, 2020 Helicopter autorotation trajectory planning problems have been dealt within computationally expensive optimal control algorithms. This paper presents an efficient helicopter autorotation trajectory planning method, using functional tensor-train- (FT ...
Yunjie Wang +3 more
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UNMANNED HELICOPTER MODEL USED FOR AERIAL AGRICULTURAL CROPS MONITORING
Journal of Industrial Design and Engineering Graphics, 2017 There are situations when the agricultural crops in the field are needed to be monitored because when certain possible pest factors appear to be able to intervene in time without being affected the production on the cultivated surface.
Fănel ȘCHEAUA, PhD
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