• Laser assisted cold spray of ferritic alloys: oxide dispersion strengthened fe91ni8zr1 and aisi 4340 steel 

  Barton, Dallin James (University of Alabama Libraries, 2020-08)

  Oxide dispersion strengthened (ODS) Fe91Ni8Zr1 (at. %) and AISI 4340 steel were successfully deposited via laser assisted cold spray. The laser assisted cold spray technique includes accelerating powder particles such that ...
• Investigation and rational design of the catalyst-support interface in redox catalysis by ceria 

  Liu, Zhongqi (University of Alabama Libraries, 2020)

  Investigating and controlling the catalyst-support interfacial interaction/structure and their effects on catalytic performance are crucial for optimizing the activity, selectivity, and durability of catalytic materials, ...
• Search for neutrinoless double-beta decay and 42Ar in enriched xenon using the EXO-200 dataset 

  Hughes, Mitchell (University of Alabama Libraries, 2020)

  Observation of neutrinoless double-beta decay (0νββ) would constitute discovery of a new class of particle (the Majorana neutrino), violate lepton number conservation, and provide a constraint on the neutrino mass scale. ...
• Raman spectroscopy of double- and triple-walled carbon nanotubes: fundamental, combination, and overtone modes 

  Hue, Jia Wern (University of Alabama Libraries, 2020)

  A single-walled carbon nanotube (SWNT) is a graphene sheet rolled up into a tube. Double-walled (DWNT) and triple-walled carbon nanotubes (TWNT) are two and three coaxial SWNTs respectively. Isolated species of DWNTs and ...
• Production, modification, and characterization of natural bamboo fiber 

  Rocky, AMK Bahrum Prang (University of Alabama Libraries, 2019)

  In an effort to extract natural bamboo fiber (NBF) from bamboo for textiles and other uses, four bamboo species Bissetii, Giant Gray, Moso, and Red Margin were chosen for investigation. Conventional fibers such as cotton, ...
• The spin Seebeck effect in magnetic insulating oxides 

  Li, Zhong (University of Alabama Libraries, 2019)

  The spin Seebeck effect (SSE), the generation of a spin current from a thermal gradient, is a novel effect which involves the interaction between charge, spin and heat. Insulating magnetic materials, like yttrium iron ...
• Solution-processed doping in CdTe thin film solar cells 

  Montgomery, Angeqlique (University of Alabama Libraries, 2019)

  Cadmium Telluride (CdTe) is one of the leading photovoltaic (PV) technologies in the world with a world record ~ 22.1%. With a bandgap of 1.45eV and a high absorption coefficient, the theoretical power conversion efficiency ...
• Nanostructural characterization of geopolymers 

  Tuinukuafe, Atolo Aaron (University of Alabama Libraries, 2019)

  Three investigations were conducted in this article-style dissertation, all sharing the common goal of achieving improved characterization of geopolymers in a manner that provides nanostructural information. The first study ...
• A study of white dwarfs: cataclysmic variables and double-detonation supernovae 

  Caldwell, Spencer (University of Alabama Libraries, 2019)

  Novae, be it classical, dwarf, or supernovae, are some of the most powerful and luminous events observed in the Universe. Although they share the same root, they are produced by different physical processes. We research ...
• A tale of two standard model extensions 

  Villalba, Desmond (University of Alabama Libraries, 2019)

  The Standard Model (SM) has provided physicists with a nearly complete effective description of the fundamental building blocks for the Universe. While several questions regarding the makeup of our Universe have been ...
• New soft magnetic materials for high frequency applications 

  Wu, Shuang (University of Alabama Libraries, 2019)

  Soft magnetic materials are widely used in devices such as inductors, transformers, antennas, magnetic hard drives, etc. Some of those devices will benefit greatly from operating at high frequencies. Thus fundamental study ...
• Microstructures and mechanical properties of high pressure die cast A383 alloys 

  Liu, Tao (University of Alabama Libraries, 2019)

  This dissertation studies the processing-microstructure-mechanical property relationships in the high pressure die cast A383 alloy. The high pressure die casting process has been widely used in automotive industry due to ...
• Quantitative analysis of 3-arm spiral galaxies 

  Hancock, Colin (University of Alabama Libraries, 2019)

  A relatively small fraction of spiral galaxies has three spiral arms. It has been theorized that these "3-arm spirals" are relatively unstable and prone to decaying into even numbered patterns due to tidal interactions. ...
• Design and Synthesis of Imidazolium-Mediated Tröger’s Base-Containing Ionene Polymers for Advanced CO2 Separation Membranes 

  Jason, Bara; Kammakakam, Irshad; O’Harra, Kathryn E.; Jackson, E. (2019-02-15)

  It is highly desirable to integrate the CO_2 solubility benefits of ionic liquids (ILs) in polymeric membrane systems for effective CO_2 separations. Herein, we are exclusively exploring a series of four novel imidazolium-mediated ...
• Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes 

  Bara, Jason (2019-07-03)

  Three new isomeric 6FDA-based polyimide-ionenes, with imidazolium moieties andvarying regiochemistry (para-, meta-, and ortho-connectivity), and composites with three differentionic liquids (ILs) have been developed as gas ...
• The Structure and Dynamics of Ringed Galaxies. V. The Kinematics of NGC 1512, NGC 3351, NGC 4725, and NGC 4736 

  Buta, Ronald (1988-03)

  The spirals NGC 1512, NGC 3351, NGC 4725, and NGC 4736 are four large nearby examples of ringed galaxies whose kinematic properties are studied in this paper by means of H-alpha Fabry-Perot interferometry. Velocity fields ...
• The Structure and Dynamics of Ringed Galaxies. IV. Surface Photometry and Kinematics of the Ringed Barred Spiral NGC 6300 

  Buta, Ronald (1987-06)

  NGC 6300 is characterized on the basis of BV photometric plates and VBRI multiple-aperture photoelectric photometry (obtained with the 0.9-m telescope at CTIO) and long-slit image-tube spectra (obtained at the Ritchey-Chretien ...
• Inner Ring Structures in Galaxies as Distance Indicators. III. Distances to 453 Spiral and Lenticular Galaxies 

  Buta, Ronald (1983-01)

  The diameters d_r, of inner ring structures in disk galaxies are used as geometric distance indicators to derive the distances of 453 spiral and lenticular galaxies, mainly in the distance interval 4 < Δ < 63 Mpc. The ...
• An Extragalactic Database. III. Diameter Reduction. 

  Buta, Ronald (1991-03)

  New photometric diameters have been used to study transformation formulae to reduce all visual diameters to a common standard system (isophotal diameter at the limiting surface brightness of 25 B mag arcsec⁻²). A new ...
• The Distance to the Hercules Supercluster. II. Application of Tertiary Indicators and an Estimate of the Hubble Constant 

  Buta, Ronald (1986-10)

  Using data provided in a previous paper, we calculate distances on the zero point of de Vaucouleurs's distance scale to 77 individual galaxies in CGCG field 108, where the core of the Hercules supercluster is found. Three ...

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