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Filtering by: Creator Carter, Jack K. Remove constraint Creator: Carter, Jack K. Committee Member Higginbotham, Jack Remove constraint Committee Member: Higginbotham, Jack

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  • Determining contact angle of solutions with varying surface tension on dry and pre-wetted silica sands

    Creator:
    McGinnis, Thomas L.
    Abstract:
    Infiltration of highly concentrated solutions into unsaturated sand is suspected to be affected by the liquid-gas interfacial tension between the resident water and that of the infiltrating solution. The wetting of non-porous solid surfaces by liquids is commonly quantified by contact angle measurements. However, it is well known that wettability...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciated. I want to thank Maria Dragila and Jack Higginbotham for serving on my committee. Maria provided

  • Institutional Path Dependence in NASA’s Human Spaceflight Program: A Case Study of Technological Evolution and Persistence

    Creator:
    Waddell, Trevor W.
    Abstract:
    Despite extensive research on the historical and technical aspects of national space policy, little has attempted to understand the links between technological evolution in NASA’s spaceflight program in relation to its administrative, political and economic context. This essay explores these connections in the development and evolution of core systems in...
    Resource Type:
    Capstone Project
    Full Text:
    _________________________________________________________________ Jack Higginbotham, representing College of Science, Space Programs

  • Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

    Creator:
    Wilson, Cameron A.
    Abstract:
    High early strength (HES) concrete is becoming increasingly used to repair damaged concrete pavement sections. The use of HES concrete enables the repaired pavement to be opened to traffic within hours of placing the concrete. A common approach used for the rapid repair of concrete pavement consists of closing a...
    Resource Type:
    Masters Thesis
    Full Text:
    Organization K Temperature in Kelvin Chemical KCl Potassium chloride Chemical Kg Kilogram Mass KNO3

  • Some communication algorithms for Gaussian and Eisenstein-Jacobi networks

    Creator:
    Albader, Bader
    Abstract:
    Interconnection networks play important roles in designing high performance computers. Recently two new classes of interconnection networks based on the concept of Gaussian and Eisenstein-Jacobi integers were introduced. In this research, efficient routing and broadcasting algorithms for these networks are developed. Furthermore, constructing edge disjoint Hamiltonian cycles in Gaussian networks...
    Resource Type:
    Dissertation
    Full Text:
    like to express my sincere gratitude to Dr. Jack F. Higginbotham, Dr. Timothy A. Budd, and Dr. Thinh

  • Low voltage techniques for pipelined analog-to-digital converters

    Creator:
    Carnes, Joshua Kenneth
    Abstract:
    To realize pipelined ADCs in deep-submicron processes, low voltage techniques must be developed to work around problems created by limited supply voltages such as the floating switch dead zone, reduced SNR, and reduced OpAmp performance. This thesis analyzes standard and low voltage design issues for pipelined ADCs and proposes a...
    Resource Type:
    Masters Thesis
    Full Text:
    sub-stage ADC output, vref is the peak input and output range of the stage, and k is the sample

  • Multi-mode resource-constrained project scheduling problem with resource vacations and task splitting

    Creator:
    Buddhakulsomsiri, Jirachai
    Abstract:
    The research presented in this dissertation addresses the Multi-Mode Resource-Constrained Project Scheduling Problem (MMRCPSP) in the presence of resource unavailability. This research is motivated by the scheduling of engineering design tasks in automotive product development to minimize the project completion time, but addresses a general scheduling situation that is applicable...
    Resource Type:
    Dissertation
    Full Text:
    . Daniel Schafer for his guidance on statistical aspect of this work; Dr. Kimberly Douglas and Dr. Jack

  • Exposure of ionic hyper-regulated artemia to chlorine – 36 in a marine system

    Creator:
    Shaw, Christopher Glenn
    Abstract:
    Chlorine – 36 (36Cl) is produced naturally, through neutron activation of stable chlorine during nuclear weapons detonation, or from neutron capture on residual chlorine in graphite piles. It has a half-life of 301,000 years and decays by the means of beta decay with an average energy of 236.33 keV. Due...
    Resource Type:
    Masters Thesis
    Full Text:
    
 maintain
 a
 constant
 temperature
 of
 288
 K
 in
 two
 separate
tanks,
a
closed
cooling
loop
was

  • Analysis and measurement of charge injection in switched-capacitor circuits

    Creator:
    Shen, Min
    Abstract:
    It has been verified by theoretical analysis, circuit simulation and test that two switch transistors in parallel in a simple sample and hold circuit can be achieve high speed with low error voltage due to charge injection. The wide transistor provides low RC time constant when it is closed and...
    Resource Type:
    Masters Thesis
    Full Text:
    , Professor Un-Ku Moon and Professor Jack Higginbotham for taking time to serve on my graduate committee and

  • The use of ⁶⁰Co cell survival curves in BNCT research

    Creator:
    Johnson, Jennifer Elizabeth
    Abstract:
    The cell survival curve is the only means by which to both qualitatively and quantitatively assess morphologic alterations directly resulting from in vitro irradiation of the cell. A ⁶⁰Co cell survival curve experiment has successfully demonstrated the response of the AtT-20 clone mammalian cell line to the effects of gamma...
    Resource Type:
    Masters Thesis
    Full Text:
    several calculations. Third, thanks to all committee members, (Dr. John Ruben, Zoology; Dr. Jack

  • The genesis of the San Vicente lead zinc rhythmite deposit, Peru : a petrologic, geochemical, and sulfur isotope study

    Creator:
    Schütfort, Erwin G.
    Abstract:
    The San Vicente zinc lead deposit is located in the Eastern Andes of Central Peru. The deposit is an epigenetic Mississippi Valley-type deposit based on stratigraphic, geologic, petrographic, and geochemical evidence. The dolomite host rocks of the Pucara Group are of Triassic-Jurassic age. The source of metals are red sandstones...
    Resource Type:
    Masters Thesis
    Full Text:
    , scientific inquiry, and geologic writing. My committee members John Dilles, Roger Nielsen, and Jack