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  • Submerged jet impingement boiling thermal management

    Creator:
    Cardenas, Ruander
    Abstract:
    Technologies such as avionics and power electronics are driving the demand for thermal management schemes towards high heat fluxes and low surface temperatures. Typically, these applications require the dissipation of heat fluxes in the rage of 100-1000 W/cm² while maintaining surface temperatures lower than about 85 °C. Phase-change heat transfer...
    Resource Type:
    Dissertation
    Full Text:
    grateful with many faculty members, especially Sourabh Apte, Jim Liburdy, and Deborah Pence all whom I

  • Study of the Effects of Chain Whip Length and Bar Length on the Characteristics of Chain Shot

    Creator:
    Shannon, Eric R.
    Abstract:
    Timber harvesters are high powered industrial grade rigs used to fell, delimb, and cut to size large trees. Hydraulic motors power sprockets that drive chains around a guide bar that get extended through logs during cuts. As technological advances allow for higher speeds a phenomenon called “chain shot” has...
    Resource Type:
    Masters Thesis
    Date Created:
    Full Text:
    . Abstract approved: ______________________________________________________ John Parmigiani Abstract

  • A microscopic study of the interaction between aliovalent dopants and native defects in group IV oxides : indium and cadmium in ceria and zirconia

    Creator:
    Zacate, Matthew O.
    Abstract:
    In order to understand better the defect structure and dynamics associated with lower valent dopants complexed with native defects in group IV oxides, In/Cd perturbed angular correlation spectroscopy was performed in ceria and zirconia. Examining the orientation symmetry axis of defects in ceria single crystals at low temperature has allowed...
    Resource Type:
    Dissertation
    Full Text:
    Defects in Group IV Oxides: Indium and Cadmium in Ceria and Zirconia Abstract approved. John A

  • Level structure of ¹⁵²Gd populated in ¹⁵²Tb β decay

    Creator:
    Stapels, Christopher John
    Abstract:
    As part of a research program to study the transitional region of N=88 isotones, ¹⁵²Tb was produced by the reaction ¹⁵¹Eu(α,3n)¹⁵²Tb in the 88" cyclotron located at LBNL. Gamma-ray spectroscopy of the radiation emitted from excited ¹⁵²Gd following the β⁺ decay of ¹⁵²Tb has been performed using an array of...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Christopher John Stapels for

  • New computational methods for determining antikaon-nucleus bound states

    Creator:
    Fink, Paul J., 1954-
    Abstract:
    Optical potential for antikaon-nucleus strong interactions are constructed using elementary antikaon-nucleus potentials determined previously. The optical potentials are used to determine the existence of a kaon hypernucleus. Modern three dimensional visualization techniques are used to study model dependences, new methods for speeding the calculation of the optical potential are developed,...
    Resource Type:
    Masters Thesis
    Full Text:
    Bound States Abstract approved:Pedacted for Privacy Rubin H. Landau Optical potential for antikaon

  • High-temperature, high-pressure NMR probe for superconducting magnets

    Creator:
    Mullen, Corina P.
    Abstract:
    A high-temperature, high-pressure autoclave has been adapted for use with a high-field nuclear magnetic resonance spectrometer. The autoclave has an internal pressure range of atmospheric pressure to 1.5 kbar and a temperature range of 273 K to 1900 K. The autoclave is usable in a high field (8 T) magnet...
    Resource Type:
    Masters Thesis
    Full Text:
    his patience and for acting as my thesis advisor. I would like to thank Dr. John Gardner and Dr

  • Amorphous TiO₂ : A Thin Film Synthesis Route to Stabilization of Metastable TiO₂ Brookite

    Creator:
    Haggerty, James E. S.
    Abstract:
    Structure-specific synthesis processes are of key importance to the growth of polymorphic functional compounds such as TiO₂, where material properties strongly depend on structure as well as chemistry. The robust growth of the brookite polymorph of TiO₂, a promising photocatalyst, has been difficult in both powder and thin-film forms due...
    Resource Type:
    Dissertation and Video
    Full Text:
    from SLAC, Daniil Kitchaev from MIT, John Mangum from CSM, Wenhao Sun from LBNL, Lauran Garten from

  • Nonlinear terahertz spectroscopy of carbon nanomaterials and semiconductor nanostructures

    Creator:
    Paul, Michael Jason
    Abstract:
    This thesis will cover my work relating to the developing field of terahertz (THz) science and technology. It will present experimental and theoretical studies investigating the optical and electrical properties of various material systems using novel THz imaging and spectroscopy techniques. Due to its low photon energy, THz imaging and...
    Resource Type:
    Dissertation
    Full Text:
    = ρf (2.1) ∇ ·B = 0 (2.2) ∇× E = −∂B ∂t (2.3) ∇×H = Jf + ∂D ∂t (2.4) F = q (E + v ×B) (2.5

  • Model of student understanding of probability in modern physics

    Creator:
    Wattanakasiwich, Pornrat
    Abstract:
    This study aimed to investigate students' models of probability in a modern physics context. The study was divided into three phases. The first phase explored student pre-knowledge about probability before modem physics instruction. The second phase investigated student understanding of concepts related to probability such as wave-particle behavior, the uncertainty...
    Resource Type:
    Dissertation
    Full Text:
    . Larry Flick, and Dr. John Lee. The questions and comments that you gave me helped me improve the

  • Modeling Flow and Transport at Pore Scale with Obstructions

    Creator:
    Umhoefer, Joseph G.
    Abstract:
    In this thesis we study mathematical and computational models for phenomena of flow and transport in porous media in the presence of changing pore scale geometries. The differential equations for the flow and transport models at Darcy scale involve the coefficients of permeability, porosity, and tortuosity which depend on the...
    Resource Type:
    Dissertation
    Full Text:
    (+). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 6.4 The Energy, H(t), for each step of the Ising method on a 20×20 lattice, β = 0.01