The items in this collection are the theses and dissertations written by students of the Department of Physics and Astronomy. Some items may be viewed only by members of the University of Missouri System and/or University of Missouri-Columbia. Click on one of the browse buttons above for a complete listing of the works.

Recent Submissions

  • Structural investigations of the protein export system at the single molecule level 

    Sanganna Gari, Raghavendar Reddy (University of Missouri--Columbia, 2015)
    More than 30% of proteins in any organism are transported from the site of synthesis into or through cell membranes to properly localize and function. The general secretory (Sec system) is the major route of export for ...
  • On the high density hydrogen films adsorbed in carbon nanospaces 

    Dohnke, Elmar (University of Missouri--Columbia, 2015)
    The commercialization of hydrogen-powered fuel cell cars, with their environmentally friendly emissions, provides an opportunity to replace current gasoline powered vehicles. The main drawback of hydrogen as a fuel is the ...
  • A comprehensive report on preparing and analyzing adsorptive materials suitable for hydrogen and methane storage 

    Rash, Tyler Austin (University of Missouri--Columbia, 2014)
    Development of low-pressure, high-capacity adsorbent based storage technology for methane, natural gas, and hydrogen as fuel for advanced transportation is necessary in order to address the temperature, pressure, weight, ...
  • Towards high speed high sensitivity optical coherence tomography for in vivo functional imaging 

    Zhang, Miao (University of Missouri--Columbia, 2015)
    Optical coherence tomography (OCT) is an imaging technique that has been widely used in clinics and industrial fields. This dissertation, making use of several emerging techniques, works on improving the imaging speed and ...
  • The particle-hole map: a visualization tool for electronic excitations 

    Li, Yonghui (University of Missouri--Columbia, 2014)
  • Physics-based predictions of RNA loop stability and structures 

    Liu, Liang (University of Missouri--Columbia, 2012)
    RNA (ribonucleic acid) molecules play a variety of crucial roles in cellular functions at the level of transcription, translation and gene regulation. RNA functions are tied to structures. In parallel to the experimental ...
  • Substrate structure and dynamics effect on sorption properties: Theory and experiment 

    Connolly, Matthew James, 1986- (University of Missouri--Columbia, 2014)
    Adsorbent materials such as activated carbon and metal organic frameworks (MOFs) have received significant attention for their potential for storage of hydrogen and natural gas. Typically the adsorbent is assumed to consist ...
  • Magnetic-ferroelectric interactions in RMnO₃ 

    Wang, Yuan, 1978 November 12- (University of Missouri--Columbia, 2013)
    Hexagonal RMnO₃ is multiferroic material as a combination of frustrated antiferromagnet (TN =72K) and ferroelectric (TC=875K) which consists of multiple temperature and field-dependent phases. Strong coupling between the ...
  • Spin-wave spintronics 

    Liu, Tianyu (University of Missouri--Columbia, 2013)
    Spin waves in insulating magnets are ideal carriers for spin currents with low energy dissipation. An electric field can modify the dispersion of spin waves, by directly affecting, via spin-orbit coupling, the electrons ...
  • Physics-based modeling for RNA folding 

    Xu, Xiaojun, 1979- ([University of Missouri--Columbia], 2014)
    RNA (ribonucleic acid) molecules play a variety of crucial roles in cellular functions at the level of transcription, translation and gene regulation. Many RNAs have also been found to play catalytic and regulatory roles. ...
  • Charge-transfer and other excitonic state in conjugated polymer : fullerene blends-implication in photovoltaics 

    Moghe, Dhanashree ([University of Missouri--Columbia], 2014)
    Over the last few decades there has been tremendous progress in organic photovoltaics (OPVs), with efficiencies reaching over 10%. Still, many factors including the origin and the dynamics of charge carrier involved are ...
  • Studies of water diffusion in the vicinity of single-supported lipid membranes 

    Miskowiec, Andrew ([University of Missouri--Columbia], 2014)
    The insertion and function of membrane-embedded proteins is one of the most fundamental challenges facing biological physics today. At its core, addressing these phenomena requires an understanding of the interaction of ...
  • The Gutzwiller variational method for strongly correlated systems 

    Sherafati, Mohammad, 1974- (University of Missouri--Columbia, 2013)
    In this dissertation, we have presented our research on new developments in the Gutzwiller variational method as well as the applications of the method to two specific correlated electron systems of current interest: (i) ...
  • Many-body contributions to spin relaxation in semiconductors 

    Mower, Matthew D., 1983- (University of Missouri--Columbia, 2013)
    Spintronics has the potential to play a significant role in future electronic devices. The success of the field hinges on our ability to maintain and propagate spin signals over various length scales and periods of time. ...
  • Light scattering studies of organic field effect transistors 

    Adil, Danish, 1984- (University of Missouri--Columbia, 2013)
    Organic semiconductors hold a great promise of enabling new technology based on low cost and flexible electronic devices. While much work has been done in the field of organic semiconductors, the field is still quite ...
  • Physics-based predictions of RNA loop stability and structures 

    Liu, Liang, 1981- (University of Missouri--Columbia, 2012)
    RNA (ribonucleic acid) molecules play a variety of crucial roles in cellular functions at the level of transcription, translation and gene regulation. RNA functions are tied to structures. We aim to develop a novel free ...
  • Computational and theoretical study of water and lipid dynamics in biomolecular systems 

    Jhuma, Das, 1980- (University of Missouri--Columbia, 2010)
    This Ph.D. thesis describes three research projects in theoretical and computational biophysics aimed at studying the dynamics of water and lipid molecules in two distinct biomolecular systems. In the first project the ...
  • Neutron scattering studies of yttrium doped rare-earth hexagonal multiferroics 

    Gunasekera, Jagath C. (University of Missouri--Columbia, 2013)
    Multiferroics are set of materials that exhibit both magnetic (ferro or antiferromagnetic) and ferroelectric order. Our studies focused on hexagonal RMnO3 (R = Ho, Y, Dy and Er), where strong coupling has been observed in ...
  • The enigmatic thirteen micron feature 

    de Queiroz e Souza, Nelson (University of Missouri--Columbia, 2013)
    Low and intermediate mass stars (0.8--8 solar masses) will eventually evolve into Asymptotic Giant Branch (AGB) stars and pulsate out their atmosphere into the space around them. That ejected material will eventually cool ...
  • Nanospace engineering of porous carbon for gas storage 

    Romanos, Jimmy Elia (University of Missouri--Columbia, 2012)
    An overview is given of the development of advanced nanoporous carbons as storage materials for natural gas (methane) and molecular hydrogen in on-board fuel tanks for next-generation clean automobiles. High specific surface ...

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