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 8 of 8 for “"Conductivity profile"”.
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A geodesic finite-difference time-domain model of magnetized plasma
… ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by …
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Thermoreflectance for Contactless Sintering Characterization: From Metal Nanoparticles to Stretchable Conductors
… electrical resistance measurements. The thermal conductivity measured from FDTR agrees well with thermal conductivity calculated using Wiedemann-Franz law from electrical conductivity measurements. Measurement time is reduced to 12 s by choosing a small number of measurement frequencies instead …
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Applications of low-rank approximation: complex networks and inverse problems
… induction measurements taken with a ground conductivity meter. Starting from electromagnetic data collected by this device, the electrical conductivity profile of the soil is reconstructed with the aid of a regularized damped Gauss{Newton method. The inversion method is based on the low-rank …
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A model for sample stacking in microcapillary DNA electrophoresis
… in the system. The applied voltage and the conductivity profile determine the local electric field. The electric field drives the analyte transport. The analyte consists of DNA molecules of various fragment sizes. Since the DNA concentration is smaller than the electrolyte concentration by a …
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Fourier spectral methods for numerical modeling of ionospheric processes
… by specifying an initial density (Pedersen conductivity) profile that represents slab model density, density enhancement (due to releases such as barium), or density depletion (due to late times effects of electron attachment material releases) in the presence of a neutral wind. The …
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Design and Analysis of Quasioptical Components for use in Terahertz Optics and Future CMB Missions
… of the MAGMA�C mission is to map Earth’s mantle conductivity derived from its induced magnetic field. The secondary goal of this mission is to use this conductivity profile to better estimate the water content of the mantle.
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Near-bed hydrodynamics and sediment transport in the swash zone
… measurement techniques. First, a novel Conductivity Concentration Profiler (CCP) was developed that measures sediment concentration in the sheet flow layer using electrical conductivity as a proxy. The CCP measures a 29-point conductivity profile at 1 mm resolution by multiplexing …
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Μελέτη προτύπων ιατρικής φυσικής μέσω της επίλυσης προβλημάτων μαθηματικής νευροφυσιολογίας
Η Ηλεκτροεγκεφαλογραφία (ΗΕΓ) και η Μαγνητοεγκεφαλογραφία (ΜΕΓ) αποτελούν δύο από τις πλέον ευρέως χρησιμοποιούμενες μη επεμβατικές μεθόδους μελέτης της λειτουργίας του ανθρώπινου εγκεφάλου, κατά τις οποίες καταγράφονται εξωτερικά του κρανίου, το ηλεκτρικό και το μαγνητικό πεδίο, που οφείλονται στη …