Index Catalog // ScholarsArchive@OSU

Calibration of Laser Induced Fluorescence Thermometry using 2'7' Dichlorofluorescein and Sulforhodamine B

Creator:: Ulbricht, Jaryd and Narayanan, Vinod
Abstract:: An apparatus and method for calibrating planar laser induced fluorescence using a two-dye, two-color method was developed. A laser sheet was expanded from a 473 nm laser to excite dye solutions into higher energy states then fluoresced through spontaneous emission. The two fluorescent dyes selected for research and development were...
Resource Type:: Undergraduate Thesis

Discrete-time quantum walk with two-step memory

Creator:: Jones, Christopher
Abstract:: We examine a discrete-time quantum walk with two-step memory for a particle on a one- dimensional infinite space. The walk is defined with a four-state memory space analogous to the two-state coin space commonly used in discrete time quantum walks, and a method is presented for calculating the time evolution...
Resource Type:: Undergraduate Thesis

Measuring Neutron Absorption Cross Sections of Natural Platinum via Neutron Activation Analysis

Creator:: Petersen, Nicholas
Abstract:: This thesis presents a measurement of the resonance integral and thermal cross section – which together represent the total neutron absorption cross section – of the naturally occurring isotopes of platinum that emit gamma radiation upon neutron absorption. The measurements were made via neutron activation analysis. Platinum samples were bombarded...
Resource Type:: Undergraduate Thesis

Use of a digital micromirror array as a configurable mask in optical astronomy

Creator:: Gilliam, Shawn
Abstract:: High resolution images of a dim companion in a binary star system can be obtained using a Digital Micromirror Array (DMA) as an optical mask. Imaging can be problematic because the intense light from the main star can saturate the detector and leave the companion unnoticed. Placement of the DMA...
Resource Type:: Undergraduate Thesis

Optical Tweezer Trapping of Colloidal Polystyrene and Silica Microspheres

Creator:: Peters, Kyle C.
Abstract:: Optical trapping is a tool used throughout a wide variety of disciplines rang- ing from precisely probing and manipulating sub-micron organisms in biol- ogy to analyzing fundamental charge transfer in colloidal physics. This thesis presents research involving optical tweezer force measurements of polystyrene and silica microspheres. In addition, preliminary work...
Resource Type:: Undergraduate Thesis

Measuring Low Intensity Light Reflections of High Temperature CO₂ Adsorbed on SiO₂ Near Brewster's Angle

Creator:: Ferron, Thomas J.
Abstract:: This investigation expands on earlier methods of using surface polarization reflection (SPR) to characterize the first few monolayers of a surface. Past research measured intensities of light reflecting off an SiO₂ optical flat inside a vacuum. Pressure of applied gas was changed to view a change in reflection. In an...
Resource Type:: Undergraduate Thesis

Min protein oscillations in E. Coli

Creator:: Zeto, Rene
Abstract:: The Min protein system in Escherichia coli helps the cell division process by identifying the center of the cell [1, 7]. This system has been modeled succesfully computationally under standard conditions. There has been recent experimental interest in the cell division process for signiﬁcantly perturbed cell shapes. We take the...
Resource Type:: Undergraduate Thesis

Measurement and Modeling of Zinc Sulfide Thin Films using Ellipsometry and Reflection Spectroscopy : A Comparison of Optical Characterization Techniques

Creator:: Kratzer, Aaron and Kratzer, Aaron C.
Abstract:: Zinc sulfide thin films on silicon wafers were analyzed for layer thickness, refractive index, and absorption using reflection spectroscopy (RS), spectroscopic ellipsometry (SE), and modeling programs. RS and refractive index values from literature were used to model film thickness based on reflection and the SCOUT modeling program was used to...
Resource Type:: Undergraduate Thesis

The contact value approximation to the pair distribution function for an inhomogeneous hard sphere fluid

Creator:: Lurie-Gregg, Paho
Abstract:: We construct the contact value approximation (CVA) for the pair distribution function, g(²)(r₁, r₂), for an inhomogeneous hard sphere fluid. The CVA is an average of two radial distribution functions, which each take as input the distance between the particles, |r₂ −r₁|, and the average value of the radial distribution...
Resource Type:: Undergraduate Thesis

Does temperature preference change in aging flies?

Creator:: Chase, Teresa, Giebultowicz, Tomasz M., Chow, E., and Giebultowicz, Jadwiga M.
Abstract:: Aging is known to be affected by many factors such as nutrition and exercise, and more studies are needed to understand the mechanisms of aging. Aging in flies shows many similarities with humans; therefore we study mechanisms of aging in flies as a model organism. Studying aging in flies requires...
Resource Type:: Poster

ScholarsArchive@OSU

Calibration of Laser Induced Fluorescence Thermometry using 2'7' Dichlorofluorescein and Sulforhodamine B

Discrete-time quantum walk with two-step memory

Measuring Neutron Absorption Cross Sections of Natural Platinum via Neutron Activation Analysis

Use of a digital micromirror array as a configurable mask in optical astronomy

Optical Tweezer Trapping of Colloidal Polystyrene and Silica Microspheres

Measuring Low Intensity Light Reflections of High Temperature CO₂ Adsorbed on SiO₂ Near Brewster's Angle

Min protein oscillations in E. Coli

Measurement and Modeling of Zinc Sulfide Thin Films using Ellipsometry and Reflection Spectroscopy : A Comparison of Optical Characterization Techniques

The contact value approximation to the pair distribution function for an inhomogeneous hard sphere fluid

Does temperature preference change in aging flies?

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