Results 41 to 50 of about 455,243 (146)

Preliminary investigation of use of flexible folding wing tips for static and dynamic load alleviation [PDF]

, 2017
A recent consideration in aircraft design is the use of folding wing-tips with the aim of enabling higher aspect ratio aircraft with less induced drag, but also meeting airport gate limitations.
Calderon, Dario, Cooper, Jonathan, Wilson, T, Hodigere Siddaramaiah, Vijaya, Lemmens, Y, Castrichini, Andrea   +5 more
core   +1 more source

Relationships among coleopteran suborders and major endoneopteran lineages: Evidence from hind wing characters

European Journal of Entomology, 2004
A phylogenetic analysis of the four coleopteran suborders (Polyphaga, Archostemata, Myxophaga and Adephaga), four other endoneopteran taxa (Strepsiptera, Neuropterida, Mecopterida and Hymenoptera) and three neopteran outgroups (Orthoneoptera ...
Jarmila KUKALOVÁ-PECK, John F. LAWRENCE
doaj   +1 more source

FDserver: A web service for protein folding research [PDF]

, 2008
*Summary:* To facilitate the study of protein folding, we have developed a web service for protein folding rate and folding type prediction as well as for the calculation of a variety of topological parameters of protein structure, which is freely ...
Ling-Ling Chen, Bin-Guang Ma, Hong-Yu Zhang   +2 more
core  

Gust Response and Alleviation of Avian-Inspired In-Plane Folding Wings

Biomimetics
The in-plane folding wing is one of the important research directions in the field of morphing or bionic aircraft, showing the unique application value of enhancing aircraft maneuverability and gust resistance.
Haibo Zhang, Haolin Yang, Yongjian Yang, Chen Song, Chao Yang   +4 more
doaj   +1 more source

Fast structural dynamic modeling and analysis for horizontally folding wing

, 2021
To investigate the structural dynamic characteristics of a folding wing effectively, a fast structural dynamic modeling approach is proposed. Firstly, the interface compatible relationship of the traditional fixed interface component modal synthesis ...
Ni, Yingge, Zhang, Wei, Lv, Yi
core  

The Coupled Wing Morphing of Ornithopters Improves Attitude Control and Agile Flight

Machines
Bird wings are exquisite mechanisms integrated with multiple morphological deformation joints. The larger avian species are particularly adept at utilizing their wings’ flapping, folding, and twisting motions to control the wing angle and area.
Yu Cai, Guangfa Su, Jiannan Zhao, Shuang Feng   +3 more
doaj   +1 more source

Aerodynamic Optimization of a Folding Tandem-Wing UAV: Parameter Interaction Analysis and Surrogate Modeling

Aerospace
Folding-wing Unmanned Aerial Vehicles (UAVs) have become a key platform in modern aerial applications, owing to their superior portability and rapid deployment capabilities. While the tandem-wing configuration offers a compact solution for strict folding
Xiaolu Wang, Zisen Zhang, Jiahao Li, Yongzheng Zhao, Mingqiang Luo   +4 more
doaj   +1 more source

Protein Folding and Macromolecular Dynamics: Fundamental Limits of Length and Time Scales [PDF]

, 2012
In this thesis, physics-based models of protein folding at the secondary and tertiary level are developed to resolve long-standing issues of protein folding kinetics.
Lin, Milo Miaoyu
core   +1 more source

Structural Design and Finite Element Analysis of Unfolding Process for All Composite Folding Wing of UAV

, 2010
This paper discusses the unfolding form of the folding wing and its application to special UAV. The main investigations involve aspects such as unfolding process of the special UAV’s folding wing, contour structure of the complete unfolding, the choice ...
Peng Lv, Xiao Yan Tong, Guang Jun Yang, Qing Na Zeng, Sheng Li Lv   +4 more
core   +1 more source

Functional morphology and structural characteristics of the hind wings of the bamboo weevil Cyrtotrachelus buqueti (Coleoptera, Curculionidae)

Animal Cells and Systems, 2019
Research data of the microstructure and surface morphology of insect wings have been used to help design micro air vehicles (MAV) and coating materials.
Xin Li, Ce Guo, Longhai Li
doaj   +1 more source