TOWARDS SILENT AND EFFICIENT FLIGHT BY COMBINING BIOINSPIRED OWL FEATHER SERRATIONS WITH CICADA WING GEOMETRY

Towards silent and efficient flight by combining bioinspired owl feather serrations with cicada wing geometry

Abstract As natural predators, owls fly with astonishing stealth due to the serrated feather morphology that produces advantageous flow characteristics.Traditionally, these serrations are tailored for airfoil edges with simple two-dimensional patterns, limiting their effect on noise reduction while negotiating tradeoffs in aerodynamic performance.C

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Effect of air permeability on stability of supersonic parachute

A compressible air permeability model is developed to simulate the aerodynamic performance of the supersonic porous canopy.And a single-degree-of-freedom model is applied to analyse the static stability of the parachute.By using this method, the EYE LINE WARM BROWN #1415 flow structure of the parachute system with big attack angle is obtained.The a

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Optimizing Job Performance Through Perceived Organizational Support and Self Efficacy: The Mediating Role of Work Engagement

Background: This research examines the importance of perceived organizational support (POS) and self efficacy (SE) in optimizing job performance (JP) through work wngagement (WE) in medical recorders.Optimal performance of medical recorders will have an impact on improving the quality of health services.Purpose: This paper aims to determine the eff

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