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 63 for “"electromagnetic properties"”.
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Novel Electromagnetic Properties of Elementary Particles
… couple to the photon? We discuss neutrino electromagnetic properties, a dark photon portal to dark matter and magnetic monopoles produced by cosmic rays in the milky way. We don't just discuss these models, but show how to place(in some cases) leading constraints on these models using …
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Electromagnetic properties of baryons from lattice QCD
Electromagnetic properties of the octet and decuplet baryons are calculated in quenched QCD on a 20 ³ x40 lattice with a lattice spacing of 0.128 fm using the fat - link irrelevant clover ( FLIC ) fermion action. FLIC fermions enable simulations to be performed efficiently at quark masses as low as …
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Scale effects in electromagnetic properties of composites
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Electromagnetic properties and macroscopic characterization of composite materials
Composite materials possess peculiar properties like left-handed triad, scattering enhancement, and negative refraction. In this thesis, the microscopic/macroscopic properties, the control of the geometry and functionality, and potential applications of various composites are explored. Numerical …
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Theory of electromagnetic properties of strong coupling and impure superconductors
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-31T15:11:34Z No. of bitstreams: 1 1966_nam.pdf: 5445339 bytes, checksum: 5192c539370d0381db6040353ce17d78 (MD5)
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Design and measurements of novel electromagnetic properties in spiral transmission fibers
… modes one can gain further control over fiber properties by controlling modal content in the fiber. We developed two techniques for controlled coupling and demonstrated them using one dimensional photonic band gap fibers. Using a spatial light modulator, one can dynamically control the modal …
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Effects of wideband complex electromagnetic properties of soils on geophysical sensor performance, The
… geophysical methods such as time domain electromagnetic induction (TDEM) metal detectors and ground penetrating radar (GPR) suffer performance degradation as a function of site specific complex electromagnetic soil properties (permittivity, permeability and conductivity). Knowledge of …
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Real-time monitoring of scour and sediment deposition evolution at bridges and offshore wind turbine foundations based on soil electromagnetic properties
… (new ADT sensor) characteristics of propagating electromagnetic waves affected by impedance mismatches. The study initially validated the capability of an off-the-shelf ADR sensor, with ring-shaped electrodes, to monitor scour and sediment re-deposition processes under various environmental media …
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Soil and Site Characterization Using Electromagnetic Waves
… of (1) the strength, (2) the fluid flow properties, and (3) the stress-deformation behavior of the earth materials. These important engineering properties are primarily determined by the components and structure of a soil, which also dictate the soil's responses in an electromagnetic …
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Electromagnetic characterization of carbon nanotubes and their composites for microwave sensing applications
… of research is often the high variability of the electromagnetic properties in carbon nanotube materials. A new characterization method is derived to determine the bulk electromagnetic properties of vertically aligned carbon nanotube forests. This new method is presented along with preliminary …
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Terahertz response of microfluidic-jetted fabricated 3D flexible metamaterials
… materials exhibit some restrictions on their electromagnetic properties. Especially in terahertz region, for example, materials that exhibit magnetic response are far less common in nature than materials that exhibit electric response. However, materials can be designed, namely artificial …
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Electromagnetic probing of the lunar interior in the frequency region from one kilohertz to ten kilohertz
For probable values of the lunar electromagnetic properties, a transverse magnetic surface wave may be propagated along the solar wind plasma-moon interface in the frequency range from about one kilohertz to about ten kilohertz. The horizontal propagation characteristics of this surface wave as a …
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Giant magnetoresistance in electrodeposited nickel-copper and cobalt-copper multilayers.
… to determine the superlattice structure and electromagnetic properties of each. The results demonstrate that the replacement of nickel by cobalt significantly enhances the GMR effect and that the magnitude of this effect is related to the copper, or non-magnetic, layer thickness in a …
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Microstruture & High Frequency Property of Fe- & Co- Based Nano-Grain Thin Films
… high frequency permeability and understand the electromagnetic properties that can control the high frequency permeability. In this research, the permeability measurement method at high frequency for soft magnetic thin films was investigated; some Fe- and Co-based magnetic thin films deposited …
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Evaluating approaches to detecting ice accretion in and around turbofan jet engines.
… that could potentially become catastrophic. The electromagnetic properties of ice clouds make them nearly undetectable to radars and hence the need for a new sensing technique. A microwave radiometer and two different types of interferometer sensors are being developed to address this issue. A …
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Development of Superconducting Spoke Cavities for High-Velocity Applications
… determine how each design parameter affects the electromagnetic properties, in particular the surface electromagnetic fields and the shunt impedance. Once an electromagnetically optimized, high-velocity spoke cavity is designed, there are several other characteristics that need to be …
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