Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Insect Flight"”.
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Micromechanical actuators for insect flight mechanics
… to develop MEMS actuators to aid in the study of insect flight mechanics. Specifically, we are developing actuators that can stimulate the antennae of the crepuscular hawk moth Manduca Sexta. The possible mechanosensory function of antennae as airflow sensors has been suggested, and recent …
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X-ray diffraction studies of muscle : observations on the anterior byssus retractor muscle of Mytilus edulis and the insect flight muscle from Sarcophaga bullata
… fresh, and glutaraldehyde fixed, specimens of insect flight muscle from Sarcophaga bullata. There patterns were in general agreement with previous X-ray diffraction studies of insect flight muscle. A reflexion G at 93A was observed and interpreted as arising from diffraction in the …
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Unsteady Aerodynamics of Deformable Thin Airfoils
… are essential in the analysis of bird and insect flight. The study of these types of locomotion is vital in the development of flapping wing aircraft. This paper uses potential flow aerodynamics to extend the unsteady aerodynamic theory of Theodorsen and Garrick (which is restricted to …
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Design of a flapping mechanism for reproducing the motions at the base of a dragonfly wing
Insect flight is being studied to aid in the development of micro-air vehicles that use the flapping wing model in an attempt to achieve the high levels of maneuverability that insects have. The flight of the dragonfly has been chosen to be modeled because of its exceptional flight capabilities. …
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Digital ADCs and ultra-wideband RF circuits for energy constrained wireless applications by Denis Clarke Daly.
… is integrated in a complete system for wireless insect flight control.
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Secondary structure determination of insect neuropeptides using high-resolution nuclear magnetic resonance and various molecular mechanics calculations
Insect neuropeptides play a vital role in the hormone release processes associated with insect flight Elucidation of the metabolic flight pathways requires a knowledge of the peptide secondary structure to allow predictions to be made regarding hormone-receptor binding processes. The three insect …
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Flight And Symbolic Modeling Of A 3D Printed Ornithopter
… to several challenges involved in the design and flight of hovering ornithopters as well as the measurement and analysis of lift forces produced by wings flapping in air. First, a method was developed to 3D print functional flapping wings. The use of 3D printing technology has greatly expanded the …
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The function of passive debris cloaking in tiny beetles (Coleoptera: Zopheridae)
… or hide. To investigate the relationship between flight loss, micro-habitat and diversification within the family, I used phylogenetic methodologies. I ran a correlated evolution analysis between wing state and micro-habitat type on a zopherid phylogeny, and assessed the effects of flight loss on …
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A contribution to the knowledge of the odonata
Theories concerning the origin of insect wings and flight are reviewed and a new scenario for their origin proposed. It is suggested that environmental conditions of the small stream were responsible for the evolution of insect flight, and that thermoregulation as well as respiration was important …
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The interaction between migration and disease in the Fall Armyworm, 'Spodoptera frugiperda'
Every year billions of insects undertake long-distance seasonal migrations, moving hundreds of tonnes of biomass across the globe and providing key ecological services. Yet we know very little about the complex migratory movements of these tiny animal migrants and less still about what causes their …
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Unsteady aerodynamics of falling plates
We investigate the problem of falling paper by solving the two dimensional Navier-Stokes equations subject to the motion of a free falling body at Reynolds numbers around 10^3, which is typical for a leaf or business card falling in air, and experimentally, by using a quasi two dimensional set up …
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Discovering the Complex Aerodynamics of Flapping Flight with Bio-kinematics Using Boltzmann and Eulerian Methods
The cross-sectional geometry of an insect wing has historically been simplified to a rectangular, elliptic, or having a streamlined airfoil shape. Up until this point, no analysis has utilized a morphologically accurate insect wing. As such, there remains significant questions as to whether or not …
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Dynamic Mechanical Properties of Resilin
… an almost perfect elastic protein found in many insects. It can be stretched up to 300% of its resting length and is not affected by creep or stress relaxation. While much is known about the static mechanical properties of resilin, it is most often used dynamically by insects. Unfortunately, the …
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Computational Analysis of Straight and Maneuvering Bat Flight Aerodynamics
Bats have many impressive flight characteristics such as the ability to rapidly change direction, carry substantial loads, and maintain good flight efficiency. For several years, researchers have been working towards an understanding of the specific aerodynamic phenomena which relate the unique …
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Diversity and flight activity of Staphylinidae in a citrus orchard of the Catania Plain (Sicily)
… study aims to investigate the diversity and flight activity of Staphylinidae in a citrus orchard of the Catania Plain (Sicily) using different sampling methods (car-net, window traps and pit-fall traps). The study looks at the complex of flying rove beetles with the aim of defining …
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Visual Adaptations and Behavioural Strategies to Detect and Catch Small Targets
… in the following list: 1. Thecompoundeyeofinsectsgenerallyhasmuchpoorerresolutionthanthatofcameratype eyes. Poor resolution is exacerbated in smaller insects that cannot commit the resources required for eyes with large lenses that facilitate high spatial resolution. Holcocephala has …