Index Catalog // ScholarsArchive@OSU

Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models

Creator:: Edgar, Erik S.
Abstract:: Steady flow fields and flow-induced wall stresses have been evaluated by experimental measurements and computational fluid dynamics (CFD) analysis in a series of patient-specific abdominal aortic aneurysm (AAA) models, over a range of Reynolds numbers (Re) from 125 to 3000 (500 to 3000 for CFD). Experimental methods used particle image...
Resource Type:: Masters Thesis
Full Text:: : Robert A. Peattie Steady flow fields and flow-induced wall stresses have been evaluated by

Applications of Holographic Optical Tweezers: Multiplexed Fluorescence Spectroscopy and the Micromechanics of Type-I Collagen

Creator:: Cibula, Matthew A.
Abstract:: The development and some applications of holographic optical tweezers (HOT) are presented. Our HOT system uses a spatial light modulator (SLM) to control the location and properties of the optical trap. We have developed a method for optimizing the diffraction efficiency of a SLM that can be applied in situ...
Resource Type:: Dissertation
Full Text:: Type-I Collagen Abstract approved: David H. McIntyre The development and some applications of

Optical trapping and acoustical probing of ultrasound contrast agent microbubbles confined in capillaries

Creator:: Almaqwashi, Ali
Abstract:: In an effort to develop an optical-acoustical understanding of ultrasound contrast agent microbubble dynamics in a micro-environment that resembles blood vessels, this thesis presents experimental work on optical trapping and acoustical probing of ultrasound contrast agent microbubbles confined in regenerated cellulose capillaries. First, we showed by acoustical means that the...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________ David H. McIntyre In an effort to develop an optical-acoustical understanding of

Study of creeping, inertial and turbulent flow regimes in porous media using particle image velocimetry

Creator:: Patil, Vishal A.
Abstract:: Porous media flows are encountered in many natural and man-made systems such as gas adsorption, filtration, heat exchangers, combustion, catalytic reactors and groundwater hydrology. This study experimentally investigates these flows as function of pore Reynolds number, Re[subscript pore]. The pore Reynolds number is based on the porous bed hydraulic diameter,...
Resource Type:: Dissertation
Full Text:: discussions and Dr. Robert Higdon for finding time to serve on committee. The author would also like to

Terahertz Imaging and Nonlinear Spectroscopy of Semiconductors using Plasmonic Devices

Creator:: Thompson, Zachary James
Abstract:: In this dissertation, a series of studies in the field of terahertz (THz) science are presented, specifically using nonlinear THz spectroscopy. We exploit huge field enhancement and subwavelength confinement in plasmonic structures. There are three distinct projects which will be discussed: nonlinear THz spectroscopy using plasmonic induced transparency (PIT), THz-triggered...
Resource Type:: Dissertation
Full Text:: Maxwell’s equations in matter. [25] ∇× E = −∂B ∂t (2.1) ∇×H = Jf + ∂D ∂t (2.2) ∇ ·D = ρf (2.3) ∇ ·B

BaCuChF (Ch = S, Se, Te) p-type transparent conductors

Creator:: Zakutayev, Andriy
Abstract:: BaCuChF (Ch = S, Se, Te) materials are chalcogen-based transparent conductors with wide optical band gaps (2.9 – 3.5 eV) and a high concentration of free holes (10¹⁸ – 10²⁰ cm⁻³) caused by the presence of copper vacancies. Chalcogen vacancies compensate copper vacancies in these materials, setting the Fermi level...
Resource Type:: Dissertation
Full Text:: energetic at the same time; David H. McIntyre for supervising my optics work; David P. Cann for

Tracking Photoinduced Primary Events with Femtosecond Stimulated Raman Spectroscopy and Calculations

Creator:: Wang, Yanli
Abstract:: Femtosecond stimulated Raman spectroscopy (FSRS) is a powerful ultrafast technique which can track photoinduced excited state structural events on femtosecond (fs) to picosecond (ps) timescales. In addition to high temporal and spectral resolutions, FSRS provides a broad spectral window from ca. 100—2000 cm-1 for detection, enabling the direct mapping of...
Resource Type:: Dissertation
Full Text:: state photoacid (PA*) and photobase (PB*) forms of HPTS during ESPT. An intermolecular H-bond

Electronic and Optical Properties of Defects in Amorphous Oxide and Transition Metal Dichalcogenide Semiconductors

Creator:: Vogt, Kyle
Abstract:: The optical and electronic properties of amorphous oxide thin films depend crucially on chemical composition, and deposition process variations which give rise to sub-gap defect states. Consequently, there is a need for a reliable, high-throughput method to extract sub-gap defect densities of states in amorphous oxide thin films. We present...
Resource Type:: Dissertation
Full Text:: . This suggests that hydrogen hybridizes with oxygen vacancy sites resulting in metal-hydrogen (M-H

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Creator:: Neuhaus, George F.
Abstract:: The study of natural products (NPs) and their application has shaped humanity. Starting with the idea of using plants as medicine, it has now grown into the science of purifying and identifying organic molecules from nature to study their inherent biological activities. Understanding the molecular structures of NPs is the...
Resource Type:: Dissertation
Full Text:: values for MTPA esters of 4.1 (4.1S and 4.1R). Experimental 3J(H-H) and 2-3J(C-H) values of 4.1 and 4.2

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Creator:: Shaw, Subrata
Abstract:: This thesis describes the development of a new enantioselective synthetic method employing chiral cis-2,5-diaminobicyclo[2.2.2]octane-based organometallic catalysts. The significance of this new method to organic synthesis is illustrated with preparation of enantioenriched products that are transformed to important pharmaceutical agents. Chapter 1 provides a brief historical overview of asymmetric catalysis, especially...
Resource Type:: Dissertation
Full Text:: Thalidomide (1) (R)-antiemetic (S)-teratogenic MeO Ni,_ ( -.I) ' N CI H Nexium (4) racemic: Prilosec OH H

ScholarsArchive@OSU

Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models

Applications of Holographic Optical Tweezers: Multiplexed Fluorescence Spectroscopy and the Micromechanics of Type-I Collagen

Optical trapping and acoustical probing of ultrasound contrast agent microbubbles confined in capillaries

Study of creeping, inertial and turbulent flow regimes in porous media using particle image velocimetry

Terahertz Imaging and Nonlinear Spectroscopy of Semiconductors using Plasmonic Devices

BaCuChF (Ch = S, Se, Te) p-type transparent conductors

Tracking Photoinduced Primary Events with Femtosecond Stimulated Raman Spectroscopy and Calculations

Electronic and Optical Properties of Defects in Amorphous Oxide and Transition Metal Dichalcogenide Semiconductors

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

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