A5088669973- Biomimetic flight and propulsion mechanisms
- Micro and Nano Robotics
- Sports Dynamics and Biomechanics
- Insect and Arachnid Ecology and Behavior
- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Fluid Dynamics and Thin Films
- Plant and animal studies
- Experimental and Theoretical Physics Studies
- Particle Dynamics in Fluid Flows
- Plasma and Flow Control in Aerodynamics
- Fluid Dynamics and Turbulent Flows
- Neurobiology and Insect Physiology Research
- Fluid Dynamics and Heat Transfer
- Greenhouse Technology and Climate Control
- Bat Biology and Ecology Studies
- Mechanics and Biomechanics Studies
- Aerospace Engineering and Energy Systems
- Hydrology and Sediment Transport Processes
- Insect Pest Control Strategies
- Marine Invertebrate Physiology and Ecology
- Aerodynamics and Acoustics in Jet Flows
- Plant Surface Properties and Treatments
- Insect Pheromone Research and Control
- Calcium Carbonate Crystallization and Inhibition
Cornell University
2022-2024
California Institute of Technology
2017-2019
Seoul National University
2010-2012
Abstract Temperature and nutrition are two prominent environmental variables influencing juvenile growth rate in ectotherms. These factors interact complex ways. Here, we present a comprehensive analysis of the interactive effects temperature on various components fitness (growth rate, survival), food intake, level energy storage an insect herbivore, caterpillars Spodoptera exigua Hübner (Lepidoptera: Noctuidae). In factorial experimental design, final‐instar (i.e., fifth instars) were...
Honeybees display a unique biolocomotion strategy at the air–water interface. When water’s adhesive force traps them on surface, their wetted wings lose ability to generate aerodynamic thrust. However, they adequately locomote, reaching speed up 3 body lengths·s −1 . use as hydrofoils for water surface propulsion. Their locomotion imparts hydrodynamic momentum surrounding in form of asymmetric waves and deeper jet stream, generating ∼20-μN average The wing kinematics show that wing’s stroke...
Examples of fluid flows driven by undulating boundaries are found in nature across many different length scales. Even though driving mechanisms have evolved distinct environments, they perform essentially the same function: directional transport liquid. Nature-inspired strategies been adopted engineered devices to manipulate and direct flow. Here, we demonstrate how an boundary generates large-scale pumping a thin liquid near liquid-air interface. Two dimensional traveling waves on...
A comparison between swimming by flapping and periodic contractions is conducted. Swimming approximated as a pitching plate while clapping plates. direct made the two propulsion mechanisms utilizing machine that can operate in either or mode Reynolds numbers of 1880 11 260 based on average tip velocity span. The thrust generated input power required per cycle are compared cases where total sweep angle time identical. Variation kinematics results similar mechanisms, but greater for clapping....
Aquatic Anisopteran dragonfly larvae achieve respiration and propulsion by repetitive water jets flowing through their anal openings. Previous studies have shown that the tri-leaflet valves modulate emerging jet varying opening size. We discovered are also capable of controlling asymmetry independent retraction a leaflet. This study shows effects valve control on respiratory propulsive flows. Furthermore, size variation re-evaluated using fluid momentum power equations. Synchronized dual...
Abstract Understanding the flight behavior of nocturnal insect pests is essential for designing effective trapping systems and improving integrated pest management (IPM). This study used infrared (IR) reflectance IR camera to analyze corn earworm ( Helicoverpa zea ) around Scentry Heliothis pheromone trap, focusing on approach, escape, capture rates. Video analysis revealed low average catch rate 25% a total 48 approaches from 7 p.m. 4 a.m., as many moths approached lure but escaped without...
Abstract Despite limited tools, Leonardo da Vinci displayed ingenious problem-solving. The authors examine a combination of Leonardo’s thought and physical experiments regarding the acceleration falling objects. recorded that if water-pouring vase moves transversally (sideways), mimicking trajectory vertically object, it generates right (as in orthogonal) triangle with equal leg length, composed material lining up diagonally (forming hypotenuse) forming one legs. On hypotenuse, wrote...
Abstract With limited measurement and mathematical tools, Leonardo da Vinci displays ingenious problem-solving. Here, we report a brilliant combination of Leonardo’s thought physical experiments on the nature acceleration falling objects. In his note, recorded that if water-pouring vase moves transversally, mimicking trajectory object, it generates an isosceles orthogonal triangle composed material lining up as hypotenuse forming one legs. On hypotenuse, wrote Equatione di Moti, or...
Examples of fluid flows driven by undulating boundaries are found in nature across many different length scales. Even though driving mechanisms have evolved distinct environments, they perform essentially the same function: directional transport liquid. Nature-inspired strategies been adopted engineered devices to manipulate and direct flow. Here, we demonstrate how an boundary generates large-scale pumping a thin liquid near liquid-air interface. Two dimensional traveling waves on...