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 5 of 5 for “"Acoustic Device"”.
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Design and Development of a Low-cost Acoustic Device to Detect Pest Infestation in Stored Maize
… goals; - the first goal was to investigate the acoustic behavior of internally feeding S. zeamais (Coleoptera: Curculionidae) in maize. The pests were monitored for peak activity and signal amplitudes. The study was performed in the morning, afternoon and night times for three consecutive days …
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Advances in materials strategies, circuit designs, and informatics for wearable, flexible and stretchable electronics with medical and robotic applications
… The miniaturization of health monitoring devices in wearable form resembles a significant progress towards the next-generation medical electronics. However, there are still key challenges in these wearable electronics associated with medical-grade sensing precision, reliable wireless …
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Measurements Of Fluvial Sediments Using A Single-Frequency Acoustic Attenuation System
… continuously monitor this pollutant. Ultrasonic acoustic measurements have the potential to improve the temporal resolution of fluvial sediment data. This work investigates the use of a prototype field grade single-frequency acoustic attenuation system that was developed at the National Center …
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Bragg reflector thin-film resonators for miniature PCS bandpass filters
… vary with the AlN Rocking Curve. A simple acoustic device, the ovennoded resonator, and a new model, the Lossy Resonator Model, were developed specifically to extract the one-dimensional, bulk AIN electromechanical coupling constant K2 as a function of Rocking Curve. For Rocking Curves less …
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Impedance- and spatial-domain aliasing in interference management techniques
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01