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 20 of 88 for “"antennae"”.
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Material, acoustic, and mechanical properties of mosquito and midge antennae
… of the material properties of mosquito or midge antennae, to assess the material structure and to gauge which impact this distribution can have on the antenna's mechanical behaviour in response to sound. It was revealed that, rather than a simple beam of uniform cuticle, the antennae of the …
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Techniques for improving the readout sensitivity of gravitational wave antennae
… first generation of broadband interferometric GW antennae is now drawing to a close, and the construction of the second generation has begun. The Laser Interferometer Gravitational-wave Observatory (LIGO) in the United States is one component of a worldwide array of sites designed to collectively …
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Sensitivity and noise analysis of 4 km laser interferometric gravitational wave antennae
Around the world, efforts are underway to commission several kilometer-scale laser interferometers to detect gravitational radiation. In the United States, there are two collocated interferometers in Hanford, Washington and one interferometer in Livingston, Louisiana. Together, these three …
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Micromechanical actuators for insect flight mechanics
… 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 discoveries of our collaborators reveal that mechanosensory input from the antennae of flying …
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Spatial Expression Patterns of theSnmp Gene Family In Drosophila Melanogaster
… expresses in neural and support cells of the antennae as is consistent with the aforementioned studies. However, it is also shown that SNMP1 expression is not limited to the antennae, but extends to support cells associating with gustatory neurons in the periphery, arguing that SNMP1 exhibits …
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Low-Cost Flight Test Telemetry Systems
… on a peer-to-peer architecture where a system of antennae enables a signal to be transmitted between an aircraft and a receiving ground station. Said system generally requires costly infrastructures on the ground and complex antennae components to be installed on the aircraft. Newer approaches may …
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Plant-insect interactions between female dogwood borer and apple
… morphology of male and female dogwood borer antennae and their sensilla were examined using light and scanning electron microscopy to characterize, measure and compare the types, number, and distribution of sensilla. Although the general shape and size of male and female antennae were …
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Design and Analysis of the Onsala 4mm Receiver and other Antenna Configurations for Millimetre Wave Astronomy
… was carried out into the development of lens antennae fed by planar antennae with good beam characteristics, as an alternative to horn antennae in the W band. A variety of patch designs were considered, with the effect of a lens placed in front of them. This adds the required directionality to …
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Importance of floral scent compounds for the interaction between Silene latifolia (Caryophyllaceae) and the nursery pollinator Hadena bicruris (Lepidoptera: Noctuidae)
… extracts often elicited main signals in the antennae (e.g. lilac aldehydes, phenyl acetaldehyde). Some compounds elicited main signals in the antennae, though they were only minor components in the extracts (e.g. 3-methyl-butyl-aldoxime, benzaldehyde). Other compounds elicited only weak …
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Chemical Ecology of Clytini (Coleoptera: Cerambycidae)
… only after contacting them with their antennae. I characterize the behavior and demonstrate that three methylalkanes present in the wax layer of females are sufficient to elicit a mating response from males.
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Chemoreceptors From the Hawk Moth Manduca Sexta L
… experiments show MsOr1 is expressed only in male antennae suggesting a male-specific function for this receptor. In situ hybridization revealed MsOr1 was expressed exclusively in a single cell associated with male-specific type-I trichoid sensilla further suggesting this receptor is involved in …
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An Evaluation of Bed Bug (Cimex lectularius L.) Host Location and Aggregation Behavior
… a host from different distances and if the antennae were essential for host location. Starved bed bugs were able to locate a host from 100 cm away. The bed bugs search path became more directed towards the host as the bed bug was placed at closer distances. The bed bugs' mean searching speed …
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The role of olfaction in host-finding by two specialist predators of hemlock woolly adelgid
… The first involved examination of the antennae of the predators for the presence and abundance of olfactory sensilla. The second experiment was designed to detect a behavioral response by the predators following exposure to host volatile compounds. The final experiment involved …
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Characterizing Locust Anemotaxis: The Impact of Sensory Perturbations on Flight Behavior
… mechanical impairments of their wings and antennae, and pheromonal interference. These perturbations allowed for the exploration of the contributions each sensory pathway makes to flight stability and navigation in a controlled environment.</p> <p>Results show that while visual impairment …
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Topologies for satellite constellations in a cross-linked space backbone network
… satellite parameters like the number of antennae required, the necessary slewing rate of each antenna, the power required by each antenna, and the physical placement of these antennae on the satellites. The complexity parameters of each individual satellite will be determined for two of …
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Chemical Manipulation of Honey Bee Behavior
… compounds were readily detected by bee antennae; whereas, the HCAs did not elicit significant responses in the bee antennae. These data suggest that bee pheromonal compounds, as well as HCAs, may serve as candidates for the further investigation as repellents to protect bees from …
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The Physical Basis of Extreme Animal Coloration
… of bright white coloration in cleaner shrimp antennae. Cleaner shrimp engage in a mutualistic relationship with client fishes. Some species of cleaner shrimp use long white body parts to signal to these client fish and advertise their services. Two such species are Ancylomenes pedersoni and …
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Secondary Plant Compounds as Feeding Deterrents in the African Subterranean Termite Schedorhinotermes lamanianus Sjöstedt (Isoptera: Rhinotermitidae): A Behavioural and Neurophysiological Approach
… the taste neuron II/3 in TP II sensilla on antennae of this termite species. Non-alkaloids did not stimulate neuron II/3. Therefore, this neuron II/3 is an "alkaloid cell" negatively influencing feeding behaviour in this termite. 2) Feeding inhibition seems also to be influenced by the …
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Quality control of the kinematic positioning into GNSS networks
… and the decreasing costs of the receivers and antennae. Today, considering also the new constellations that are emerging, it is possible to affirm that GNSS positioning can be assessed almost everywhere: therefore, it is no longer necessary to ask whether satellite positioning is possible but …
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