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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 8 of 8 for “"Ultrahigh frequency"”.
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Ultrahigh frequency characterization of complex materials using transient grating techniques
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2000
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Some effects of ultrahigh frequency induced electrical currents on certain micro-organisms
High frequency induced electrical energy has been used by medical science for several years to produce heat internally in the human body. The uses of such a process are many and varied. They range all the way from producing artificial fever in the entire body to heating one certain afflicted spot …
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Generation of ultrahigh frequency acoustic waves for the characterization of complex materials
… materials, which interact strongly with ultrahigh frequency acoustic waves and creating the anomalies. The model has been found to well reproduce the measured anomalous thermal conductivity of silica glass. Separately, an experiment which utilizes impulsive stimulated thermal scattering …
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Drying ceramic products using induced ultra-high frequency electrical energy
… to dry a test specimen by the use of ultra-high frequency induced current until shrinkage ceases is only thirty percent of the time required when heat is supplied by resistance wire heating coils. (b). It is possible, with the use of the ultrahigh frequency energy, to dry complicated shapes …
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Quantitative Carrier Transport in Quantum Dot Photovoltaic Solar Cells from Novel Photocarrier Radiometry and Lock-in Carrierography
… in CQD systems were studied to develop high-frequency dynamic testing and/or large-area quantitative imaging techniques: photocarrier radiometry (PCR), and homodyne (HoLIC) and heterodyne (HeLIC) lock-in carrierographies. Based on the discrete carrier hopping transport in CQDs, various …
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Mechanisms of Interactions between Aerosol Physics and Atmospheric Dynamics
… properties is significantly linked to high-frequency atmospheric wave activity across the tropical Atlantic storm tracks, while the variability of smoke particles from the South African biomass burning is attributed by low-frequency oscillations of baroclinic instability of the region. We …
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Dual-Band Power and Communication Antennas for Wireless Brain-Computer Interfaces
… BCI device via inductive coupling at the high-frequency (HF) band (13.5 MHz) and to have data communication at the ultrahigh-frequency (UHF) band (902–928 MHz). To fulfill these requirements, design of dual-band (HF and UHF) antennas for BCI and external devices are needed. Designing HF and UHF …
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Modeling and design of near-field antennas with periodic structures
… exemplified as a reader antenna for ultra-high frequency (UHF) near-field radio frequency identification (RFID) systems.