Results 21 to 30 of about 450,371 (196)
International Journal of Aerospace Engineering, 2022 A folding wing aircraft can autonomously change its configuration in flight to respond to different flying environments. Hinge moment during morphing process is an important basis for driving mechanism design and structural strength check, and its ...
Hao Xu +4 more
doaj +1 more source
Folding Solid-Membrane Wing Structure for a Micro Air Vehicle [PDF]
, 2013 The design of a solid-membrane folding wing for use on a tube launched micro air vehicle (MAV), and experimental wind tunnel results of the wing integrated on an engineering MAV model are presented herein.
Allen, Joe D., Jr.
core +1 more source
A Parametric Study on the Aeroelasticity of Flared Hinge Folding Wingtips
Aerospace, 2021 This paper presents a parametric study on the aeroelasticity of cantilever wings equipped with Flared Hinge Folding Wingtips (FHFWTs). The finite element method is utilized to develop a computational, low-fidelity aeroelastic model. The wing structure is
Rafic M. Ajaj +3 more
doaj +1 more source
Simultaneous optimisation of earwig hindwings for flight and folding
Biology Open, 2016 Earwig wings are highly foldable structures that lack internal muscles. The behaviour and shape changes of the wings during flight are yet unknown. We assume that they meet a great structural challenge to control the occurring deformations and prevent ...
Julia Deiters +2 more
doaj +1 more source
IEEE AccessFlapping-wing robots (FWRs) are highly sensitive to atmospheric gusts due to their low mass and strong aerodynamic coupling. One way to address this challenge is through active wing folding inspired by natural flyers.
Saddam Hussain Abbasi +3 more
doaj +1 more source
Testing of Folding Wingtip for Gust Load Alleviation of a Flexible High Aspect Ratio Wing [PDF]
, 2020 Folding wingtips have begun to feature on recent aircraft designs, as a solution for compliance with existing airport gate width regulations whilst enabling high aspect ratio wings for lower induced drag and better overall fuel efficiency. Recent studies
J. E. Cooper +7 more
core +1 more source
Analysis of aerodynamic characteristics of hypersonic folding-wing aircraft
Hangkong gongcheng jinzhanHypersonic aircraft encounter challenges in adapting to complex external environments during missions. Conventional fixed-wing aircraft have limited optimal aerodynamic performance under specific conditions.
WU Zaoping, QIN Jian, WU Jie
doaj +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Comparing the paths of Hedgehog release in artificial and natural settings
FEBS Letters, EarlyView.Hh morphogens require solubilization factors to overcome their tight association with the plasma membrane and signal to distant cells, but the precise functions of these factors are controversial. Here, we use published in vivo observations as the most relevant evidence to test their suggested functions and discuss contradictions and gaps between in ...
Janna Puschmann, Kay Grobe
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source