This research focuses on developing an optical metrology system to characterize the 3D refractive index profile of intraocular Lenses (IOLs) and contact lenses. Recent innovations in IOLs and contact lenses have facilitated the creation of lenses with finely controlled refractive index gradients across their surfaces, and as a result, the demand for precise metrological techniques has increased. Optical Phase Computed Tomography (OPCT) holds as a possible method for precisely characterizing these gradients. OPCT operates on the principle of the parallel ray approximation, which assumes that the rays passing through a surface remain unaltered in angle and continue parallel. OPCT has proven effective in determining the refractive index of optical fiber, this success can be attributed to the minimal deviation from parallel ray assumption of the optical fiber. This study aims to ascertain the feasibility of using OPCT for the characterization of intraocular lenses (IOLs) and contact lenses. Our approach involves replicating, through simulation, the previously studied optical fiber to determine the maximum deviation angle from the parallel ray assumption. Utilizing simulated models of IOLs and contact lenses, we investigate the repercussions of deviations from the parallel ray assumption on OPCT precision. We aim to compare these findings to the established deviation observed in fiber optic studies. This comparative analysis will offer insights into the potential applicability of OPCT for IOLs and contact lenses, allowing for further development of enhanced optical metrology techniques.

Effectiveness and Efficiency of UV-C Lights at Killing Bacteria:

Bacteria lie on surfaces all around us, resulting in a desire to clean or disinfect them to avoid the adverse effects of bacteria. One popular method is UV-C light, which has a wavelength of 200-280 nanometers. This study aimed to determine the effectiveness of UV-C lights in killing bacteria. Tests were conducted using a power sensor and bacterial lawns to determine the impacts of different variables on the effectiveness of UV-C lights. Testing measures were taken to ensure that all data was collected independently and identically. It was found that height, surface placement under UV-C lights, electrical power to lights, and reflectivity had the most significant impact on the effectiveness of the light. When optimizing these variables, it was found that with three and two lights there was a substantial bacteria kill rate once the exposure exceeded 3 seconds. This study has proven that UV-C is an effective and efficient way to kill bacteria on surfaces.

This project delved into the multifaceted world of blacksmithing, merging scientific inquiry with traditional craftsmanship to understand the nuances of metal work and material sciences. The primary objective was to immerse in the practicality of the craft, with the intent of learning the use of essential tools, the operational aspects of a forge, and further developing my knowledge of material properties of metals. In the aspect of material properties, a target was made to cultivate a comprehensive understanding of the manipulation of metal properties, utilizing heat treatment, cooling, and knowledge of metallurgical behavior.

Key milestones were set, including the acquisition of competencies in manipulating metal through heating, working, and cooling to craft rudimentary objects like hooks and nails, progressing towards more intricate creations such as knives and ornamental ironworks. The project's methodology was twofold: an investigative theoretical approach entailing the study of literature and visual resources to build a foundational knowledge base, and an empirical approach through active participation in local blacksmithing workshops.

The culmination of the project saw the successful completion of a functional coat rack and a knife forged from a railroad spike, reflecting both the learned techniques, material science, and personal creative expression. The analytical engagement with metals and forging methods paved the way for producing personalized, high-quality metalworks. The endeavor not only honed a distinctive skillset but also unveiled the potential for a post-graduate entrepreneurial venture specializing in custom-made tools and decorative arts, thereby intertwining the art of blacksmithing with contemporary business opportunities.

Urban trees provide a variety of ecosystem services to an area that allows both humans and animals to thrive in their vicinity. The ecosystem services provided are able to be determined through specific aspects of a tree and their location in relation to buildings and ground cover. These ecosystem services include carbon sequestration, air quality improvement, avoided runoff, and energy effects. Texas Christian University (TCU) was designated a tree campus by the Arbor Day Foundation meaning they commit to making sure that they are planting and preserving the trees that are in their care. This study’s purpose was to determine the ecosystem services provided by the trees in TCU’s care, including the costs of each tree and the services that they provide. By surveying the diameter at breast height (DBH), total height, crown base height, species, crown health and exposure, canopy size, ground cover, and health we are able to determine what services are being provided by the TCU trees. Determining the services is possible through the service iTree Eco where the data was inputted allowing its use in the estimation of the services that the trees provide.

Although bats are extremely important ecosystem service providers, they face challenges accessing suitable drinking resources in urban environments. The objective is to conduct a comprehensive geospatial analysis to assess water sources within Tarrant County. Factors such as tree cover, surface area, and proximity to roads will be evaluated and mapped to determine the suitability of these water sources for bats. The resulting data will contribute valuable insights into the spatial distribution of drinking resources for local bat populations, aiding in conservation efforts and habitat management in the region.