Index Catalog // ScholarsArchive@OSU

Finite difference time domain modeling of subwavelength-structured anti-reflective coatings

Creator:: Han, Katherine, Han, Hai-Yue, Stack, James, Jr., and Chang, Chih-Hung
Abstract:: The finite difference time domain (FDTD) method was used to model anti-reflective properties of a variety of sub-wavelength structures for 300 to 1300 nm input light. Light hitting non-tapered nanostructures exhibited interference patterns similar to thin film anti-reflective coatings (ARCs), increasing the anti-reflective effect at several wavelengths. The lowest reflectance...
Resource Type:: Article
Full Text:: Computational Electromagnetics Society Journal, 29(1), 1-8. The Applied Computational Electromagnetics Society

Finite-difference time-domain modeling of ultra-high frequency antennas on and inside the carbon fiber body of a solar-powered electric vehicle

Creator:: Han, Katherine, Freeman, Paul, Han, Hai-Yue, Hamar, Jacob, and Stack, James F., Jr.
Abstract:: Finite-difference time-domain simulations are performed on a 900 MHz band antenna inside and outside the carbon fiber body of a solar-powered electric vehicle. Data are analyzed to determine the optimal antenna placement for transmission to a receiving antenna located toward the rear of the solar vehicle. Modeling data are compared...
Resource Type:: Article
Full Text:: body of a solar-powered electric vehicle. Applied Computational Electromagnetics Society Journal, 29(6

A Polynomial Chaos Method for Dispersive Electromagnetics

Creator:: Gibson, Nathan L.
Abstract:: Electromagnetic wave propagation in complex dispersive media is governed by the time dependent Maxwell’s equations coupled to equations that describe the evolution of the induced macroscopic polarization. We consider “polydispersive” materials represented by distributions of dielectric parameters in a polarization model. The work focuses on a novel computational framework for...
Resource Type:: Article
Full Text:: Electromagnetics N. L. Gibson ∗ Department of Mathematics Oregon State University September 4, 2013 Abstract

Electromagnetic properties of anisotropic plasmonic metamaterials

Creator:: Elser, Justin Lee
Abstract:: In this dissertation we study the electromagnetic properties of plasmonic metamaterials. We develop an analytical description to solve the fundamental problem of free-space scattering in planar plasmonic systems by utilizing anisotropic metamaterials. We show with exact numerical simulations that these manufactured materials do completely eliminate the scattering, and even in...
Resource Type:: Dissertation
Full Text:: : Electromagnetic Properties of Anisotropic Plasmonic Metamaterials Abstract approved: Viktor A. Podolskiy In

First passage time of skew Brownian motion

Creator:: Appuhamillage, Thilanka and Sheldon, Daniel
Abstract:: Nearly fifty years after the introduction of skew Brownian motion by Itô and McKean (1963), the first passage time distribution remains unknown. In this paper, we first generalize results of Pitman and Yor (2001) and Csáki and Hu (2004) to derive formulae for the distribution of ranked excursion heights of...
Resource Type:: Article
Full Text:: Computational and Applied Mathematics, 186(1):130–147. Fauchald, P. and Tveraa, T. (2003). Using first-passage

PAC Optimal MDP Planning with Application to Invasive Species Management

Creator:: Taleghan, Majid Alkaee, Dietterich, Thomas G., Crowley, Mark, Hall, Kim, and Albers, H. Jo
Abstract:: In a simulator-defined MDP, the Markovian dynamics and rewards are provided in the form of a simulator from which samples can be drawn. This paper studies MDP planning algorithms that attempt to minimize the number of simulator calls before terminating and outputting a policy that is approximately optimal with high...
Resource Type:: Article
Full Text:: Journal of Machine Learning Research 16 (2015) 3877-3903

Henry Augustus Rowland and his electromagnetic researches

Creator:: Miller, John D. (John David)
Abstract:: This analysis concerns the life and scientific work of Henry Augustus Rowland (1848-1901), organizer and the first chairman of the physics department at The Johns Hopkins University in 1876. Special materials used in this research included three pieces of Rowland's experimental apparatus which are extant in the Smithsonian Institution Division...
Resource Type:: Dissertation
Full Text:: Henry Augustus Rowland and his electromagnetic researches

Bulletin 6 (Pacific Marine Fisheries Commission)

Creator:: Pacific Marine Fisheries Commission
Abstract:: This issue of the bulletin covers salmon landings, spawning of dover sole, movements of petrale sole, the pink shrimp fishery, and availability of small salmon off the Columbia River.
Resource Type:: Journal
Full Text:: (1957). Because the computational formula of the finite population unbiased variance estima- tor, v(r

Nonlinear Degenerate Evolution Equations in Mixed Formulation

Creator:: Showalter, R. E.
Abstract:: We develop the theory of degenerate and nonlinear evolution systems in mixed formulation. It will be shown that many of the well-known results for the stationary problem extend to the nonlinear case and that the dynamics of a degenerate Cauchy problem is governed by a nonlinear semigroup. The results are...
Resource Type:: Article
Full Text:: /100789427 10.1137/100789427 Society for Industrial and Applied Mathematics Version of Record http

Global 3-D electromagnetic forward modelling: a benchmark study

Creator:: Kelbert, Anna, Kuvshinov, Alexey, Velímský, Jakub, Koyama, Takao, Ribaudo, Joseph, Sun, Jin, Martinec, Zdeněk, and Weiss, Chester J.
Abstract:: Global electromagnetic (EM) induction studies have been the focus of increasing attention during the past few years. A primary stimulus for this interest has been increased quality, coverage and variety of the newly available data sets especially from recent low-Earth-orbiting satellite missions. The combination of traditional ground-based data with satellite-borne...
Resource Type:: Article
Full Text:: 3-D electromagnetic forward modelling: a benchmark study Global 3-D electromagnetic forward

ScholarsArchive@OSU

Finite difference time domain modeling of subwavelength-structured anti-reflective coatings

Finite-difference time-domain modeling of ultra-high frequency antennas on and inside the carbon fiber body of a solar-powered electric vehicle

A Polynomial Chaos Method for Dispersive Electromagnetics

Electromagnetic properties of anisotropic plasmonic metamaterials

First passage time of skew Brownian motion

PAC Optimal MDP Planning with Application to Invasive Species Management

Henry Augustus Rowland and his electromagnetic researches

Bulletin 6 (Pacific Marine Fisheries Commission)

Nonlinear Degenerate Evolution Equations in Mixed Formulation

Global 3-D electromagnetic forward modelling: a benchmark study

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