Results 61 to 70 of about 587 (163)

Turning dynamics and passive damping in flapping flight [PDF]

2009 IEEE International Conference on Robotics and Automation, 2009
We investigated whether flapping flight has an inherent stability by analyzing the inertial and aerodynamic effects of flapping wings on body dynamics. Based on wing and body kinematics of free flying fruit flies during rapid maneuvers, we found a passive counter torque due to body rotation.
Bo Cheng 0002, Steven N. Fry, Qingfeng Huang, William B. Dickson, Michael H. Dickinson, Xinyan Deng   +5 more
openaire   +2 more sources

Wind Tunnel Experimental Study on the Flight Parameters of a Bio-Inspired Bat-like Flapping-Wing Robot

Aerospace
With the in-depth study of the unique flight ability of bats in the field of bionic robots, wind-tunnel experiments have become an important means to verify the feasibility of bat-like flying robot structures.
Bosong Duan, Junlei Liu, Shuai Wang, Zhaoyang Chen, Bingfeng Ju   +4 more
doaj   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

The Functions of Phasic Wing-Tip Folding on Flapping-Wing Aerodynamics

Biomimetics
Insects produce a variety of highly acrobatic maneuvers in flight owing to their ability to achieve various wing-stroke trajectories. Among them, beetles can quickly change their flight velocities and make agile turns.
Yiming Li, Keyu Li, Fang Fu, Yao Li, Bing Li   +4 more
doaj   +1 more source

Flight Performance Estimation of Bionic Flapping-Wing Micro Air Vehicle [PDF]

Xibei Gongye Daxue Xuebao, 2018
Bionic flapping-wing micro air vehicle(MAV) has received worldwide attention.The flight performance calculation is an important step in the conceptual design.The differences in performance estimation methods between the flapping-wing and conventional ...

doaj   +1 more source

Strategies and mechanisms of precision genome engineering: From gene editing to genome writing

iMetaOmics, EarlyView.
In this review, we examined the progression of genome manipulation from stochastic nuclease‐mediated cutting toward precise editing and programmable genome writing. We discussed tools like multi‐kilobase RNA‐guided integrators and Artificial Intelligence (AI)‐designed effectors and showed how these advances enable researchers to treat genomes as ...
Kerui Huang, Jianhong Tian, Wenyan Zhao, Siqin Zhang, Lixuan Xiang, Meiqing Yang, Lu Liu, Yazhou Huang, Ningyun Zhang, Lei Sun, Peng Xie, Nanyu Kuang, Hong Zhou, Chengfeng Qiu, Jun Yan, Xiaocheng Jiang, Qiang Tu, Yun Wang, Haoliang Hu, Youming Zhang   +19 more
wiley   +1 more source

Flight modes in migrating European bee-eaters: heart rate may indicate low metabolic rate during soaring and gliding. [PDF]

PLoS ONE, 2010
BACKGROUND: Many avian species soar and glide over land. Evidence from large birds (m(b)>0.9 kg) suggests that soaring-gliding is considerably cheaper in terms of energy than flapping flight, and costs about two to three times the basal metabolic rate ...
Nir Sapir, Martin Wikelski, Marshall D McCue, Berry Pinshow, Ran Nathan   +4 more
doaj   +1 more source

Impact of pre‐surgical anxiety and fear on patient satisfaction following periodontal and implant surgical procedures

Journal of Periodontology, EarlyView.
Abstract Background Pre‐surgical anxiety (PSA) and pre‐surgical fear (PSF) may hinder patient compliance, while patient satisfaction (PS) is vital for adherence to treatment recommendations. This prospective study investigated the impact of PSA and PSF, and the influence of patient demographics and postoperative pain, on PS after periodontal and ...
Anum Haider, Dimitris N. Tatakis, Manuel Lagravere, Hollis Lai, Monica P. Gibson   +4 more
wiley   +1 more source

The Aerodynamics of Flapping Animal Flight [PDF]

American Zoologist, 1984
Our understanding of the aerodynamics of flapping animal flight is largely based on the quasi-steady assumption: the instantaneous aerodynamic forces on a flapping wing are assumed to be identical with those which the wing would experience in steady motion at the same instantaneous speed and angle of attack.
openaire   +1 more source

Dynamics of a Rod Attached to a Rotating Hinge

Macromolecular Symposia, EarlyView.
ABSTRACT The dynamics of a rod attached to a rotating hinge, also interpreted as a physical pendulum in a rotating frame, provide a valuable mechanical model for analyzing the complex oscillatory behavior of helicopter rotor blades. This simplified system captures essential features of blade flapping and in‐plane motions influenced by inertial and ...
Gheorghe Floroiu, Mihai Valentin Predoi, Roxana Alexandra Petre   +2 more
wiley   +1 more source