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 9 of 9 for “"micromotors"”.
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Piezoelectric ultrasonic micromotors
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Magnetic Micromotors in Assisted Reproductive Technology
Micromotors – untethered, motile, microscopic devices – are implemented in this dissertation for two applications in the field of assisted reproductive technology. First, as synthetic motor units for individual sperm cells, representing a novel approach to counteract sperm immotility …
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Custom-Designed Biohybrid Micromotor for Potential Disease Treatment
Micromotors are recognized as promising candidates for untethered micromanipulation and targeted cargo transport. Their future application is, however, hindered by the low efficiency of drug encapsulation and their poor adaptability in physiological conditions. To address these challenges, one …
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Analysis, design, and fabrication of an electric induction micromotor for a micro gas-turbine generator
… mechanical springs. Electric induction micromotors offer several advantages over electric variable capacitance micromotors and magnetic micromotors: neither rotor position nor speed need be known to achieve good performance; perfect sinusoids can be used for actuation to eliminate …
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Development of Small-Footprint Large-Amplitude Tripod (three lambda) Mode Traveling Wave Generator
… provide stable, non-rocking drive for ultrasonic micromotors. The FEA results revealed that the said mode shape can be realized with a short aluminum cylinder of 14 mm in OD, 12 mm in ID, and 10 mm in length and that its axial displacement amplitude can be significantly enhanced if end flanges of …
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Optimization Of A Non-Contact Single Phase Drive Ultrasonic Micromotor: Via Design And Analysis Of Engineered Stator Curvature And Surface Acoustic Streaming Actuators
… leading to CMOSelectronics compatible ultrasonic micromotors. The MUMPS/PZT motor operates with a drive voltage of 4 - 10 Vpp in the frequency range of 100 kHz - 5 MHz, creating rotation through frictional coupling and acoustic streaming in the rotor-stator gap. Using interferometer measurements, …
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Dynamics of Micro-Particles in Complex Environment
… of two types of micro-particles, Janus catalytic micromotors (JCMs) and magnetic clusters, in complex environment are studied using numerical simulations. The self-diffusiophoresis of JCMs in a confined environment is studied first. Overall, the translocation of a JCM through a short pore is …
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Funkční mikrorobotické systémy
Malí roboti schopní pohybu, detekce a interakce mohou mít zásadní vliv na biomedicínské a environmentální aplikace. Aby však bylo možné úspěšně dokončit stanovené úkoly, vyžadují malí robotí funkční komponenty kompatibilní s provozními podmínkami. V této práci vyvíjíme různé chemicky a externě …
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Self-rolled-up microtubes for on-chip microfluidic DNA storage and passive electronics applications
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01