Results 121 to 130 of about 1,095,950 (312)

Biomechanics and biomimetics in insect-inspired flight systems

Philosophical Transactions of the Royal Society B: Biological Sciences, 2016
Insect- and bird-size drones—micro air vehicles (MAV) that can perform autonomous flight in natural and man-made environments are now an active and well-integrated research area. MAVs normally operate at a low speed in a Reynolds number regime of 104–105
Hao Liu, S. Ravi, D. Kolomenskiy, Hiroto Tanaka   +3 more
semanticscholar   +1 more source

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

Advanced Intelligent Systems, EarlyView.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee, Sumin Jung, Jinwoo Jang, Yeji Han, Minchae Kang, Jihun Seong, Suyeon Seo, Eunsol Park, Haesol Kwak, Min‐Woo Han   +9 more
wiley   +1 more source

Bees with attitude: the effects of directed gusts on flight trajectories

Biology Open, 2018
Flight is a complicated task at the centimetre scale particularly due to unsteady air fluctuations which are ubiquitous in outdoor flight environments.
Timothy Jakobi, Dmitry Kolomenskiy, Teruaki Ikeda, Simon Watkins, Alex Fisher, Hao Liu, Sridhar Ravi   +6 more
doaj   +1 more source

Summary of past experience in natural laminar flow and experimental program for resilient leading edge [PDF]

The potential of natural laminar flow for significant drag reduction and improved efficiency for aircraft is assessed. Past experience with natural laminar flow as reported in published and unpublished data and personal observations of various ...
Carmichael, B. H.
core   +1 more source

Dimorphic enantiostyly and its function for pollination by carpenter bees in a pollen‐rewarding Caribbean bloodwort

American Journal of Botany, EarlyView.
Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson, Jeremy J. Midgley, Luis G. Bocourt‐Hernandez, F. G. Loiret, Patricia Ortega‐Rodés, Nicola Illing   +5 more
wiley   +1 more source

Kinematic and Aerodynamic Analysis of a Coccinella septempunctata Performing Banked Turns in Climbing Flight

Biomimetics
Many Coccinella septempunctata flights, with their precise positioning capabilities, have provided rich inspiration for designing insect-styled micro air vehicles. However, researchers have not widely studied their flight ability. In particular, research
Lili Yang, Zhifei Fang, Huichao Deng
doaj   +1 more source

Energy scavenging from insect flight [PDF]

, 2011
This paper reports the design, fabrication and testing of an energy scavenger that generates power from the wing motion of a Green June Beetle (C otinis nitida ) during its tethered flight.
, Aktakka E E Kim H Atashbar M Z Najafi K, Askew G N, Bozkurt A Gilmour R Stern D Lal A, Bozkurt A Lal A Gilmour R, Bozkurt A Paul A Pulla S Ramkumar A Blossey B Ewer J Gilomur R Lal A, Brown S, Chang S C Yaul F M Dominguez-Garcia A O'sullivan F Otten D M Lang J H, Ethem Erkan Aktakka, Ghafouri N Kim H Atashbar M Z Najafi K, Hanseup Kim, Josephson R K, Josephson R K, Khalil Najafi, Michelson R C Naqvi M A, Moore T E, Piezo Systems Inc., Roundy S J, Ruijsink R Remes B de Wagter C de Croon G, Sato H Berry C W Casey B E Lavella G Yao Y Vanderbrooks J M Maharbiz M M, Stevenson R D, Tsang W M Aldworth Z Stone A Permar A Levine R Hildebrand J G Daniel T Akinwande A I Voldman J, Visvanathan K Gupta N K Maharbiz M M Gianchandani Y   +22 more
core   +3 more sources

Phylogenomics reveals the evolution of floral traits associated with pollinators and pollinator–prey conflict within the carnivorous Pinguicula subgenus Temnoceras

American Journal of Botany, EarlyView.
Abstract Premise The carnivorous plant genus Pinguicula (Lentibulariaceae) exhibits remarkable floral diversity associated with pollination, particularly in the largest subgenus Temnoceras, which spans Mexico and Central America. Despite this diversity, the relationships between species and the evolution of key floral traits remain unresolved. Here, we
Yunjia Liu, Qianshi Lin, Steven J. Fleck, Martín Mata‐Rosas, Enrique Ibarra‐Laclette, Tanya Renner   +5 more
wiley   +1 more source

Aseasonal, undirected migration in insects: 'Invisible' but common

iScience
Summary: Many insect pests are long-distance migrants, moving from lower latitudes where they overwinter to higher latitudes in spring to exploit superabundant, but seasonally ephemeral, host crops.
Thomas W. Sappington
doaj   +1 more source

A Genetic RNAi Screen for IP3/Ca2+ Coupled GPCRs in Drosophila Identifies the PdfR as a Regulator of Insect Flight

PLoS Genetics, 2013
Insect flight is regulated by various sensory inputs and neuromodulatory circuits which function in synchrony to control and fine-tune the final behavioral outcome. The cellular and molecular bases of flight neuromodulatory circuits are not well defined.
Tarjani Agrawal, Sufia Sadaf, G. Hasan
semanticscholar   +1 more source