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Filtering by: Creator Loughborough, W. Karl Remove constraint Creator: Loughborough, W. Karl Committee Member Haapala, Karl R. Remove constraint Committee Member: Haapala, Karl R.

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  • Uplift capacity and displacement of helical anchors in cohesive soil

    Creator:
    Young, Jessica
    Abstract:
    Helical anchors are a type of deep foundation element that can be installed quickly in almost any location and can accept the immediate application of operational loads. The use of helical anchors has expanded in recent decades from its established application in the power transmission industry to more traditional civil...
    Resource Type:
    Masters Thesis
    Full Text:
    : _________________________________________________________________ Armin W. Stuedlein Helical anchors are a type of deep foundation element that can be

  • Synthesis and evaluation of PEO-coated materials for microchannel-based hemodialysis

    Creator:
    Heintz, Keely
    Abstract:
    The marked increase in surface-to-volume ratio associated with microscale devices for hemodialysis leads to problems with hemocompatibility and blood flow distribution that are more challenging to manage than those encountered at the conventional scale. In this work, stable surface modifications with pendant polyethylene oxide (PEO) chains were produced on polycarbonate...
    Resource Type:
    Masters Thesis
    Full Text:
    learning experience! Thanks to my second-in-line (but not least!) advisor Dr. Karl “Rat” Schilke for

  • Alternative design considerations for a wave energy converter : a sustainability approach

    Creator:
    Collins, Erin
    Abstract:
    As the negative impacts of a fossil fueled electricity market are becoming more prevalent and destructive, the necessity for alternative energy techniques increases as well. However, before commercial implementation is underway, these alternatives must be assessed from three important perspectives: environmentally, economically, and socially, which are known as the three...
    Resource Type:
    Masters Thesis
    Full Text:
    during operation. To calculate N, Equation 3.1 was used, where W is the dry weight of the device and B

  • Cooling rate limitations in the diffusion bonding of large microchannel arrays

    Creator:
    Lingam, Gopi K.
    Abstract:
    A significant barrier to the diffusion bonding of large (i.e. 600 mm) microchannel devices is the large capital investment required to setup production. This large capital investment extends from long heating and cooling cycles leading to poor production capacities. Empirical studies in industry have shown that cooling rate is limited...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering and Dr. Karl Haapala for being on committee. I would like to extend my appreciation to Dr

  • Materials and process design for powder injection molding of silicon nitride for the fabrication of engine components

    Creator:
    Lenz, Juergen H. (Juergen Herbert)
    Abstract:
    A new material system was developed for fabricating the combustion engine of an unmanned aerial vehicle. The material system consisted of a mixture of nanoscale and microscale particles of silicon nitride. Magnesia and yttria were used as sintering additives. The powders were mixed with a paraffin binder system. The binder-powder...
    Resource Type:
    Masters Thesis
    Full Text:
    [1] Property Value and Unit Density 3.27 g/cm3 Hardness 1450 kg/mm2 Thermal conductivity 29 W/m-K

  • Medical diagnosis : a functional model and diagnostic aid

    Creator:
    Zolfaghari, Kiumars
    Abstract:
    Improving the quality of the medical system has always been of great importance but has not always made the largest advances. A significant percentage of medical errors are due to wrong, missed, or delayed medical diagnosis. Diagnostic errors are among the most preventable categories of medical errors, but when an...
    Resource Type:
    Masters Thesis

  • Utilizing smart manufacturing information in a job shop to support job selection and processing speed decisions

    Creator:
    Houck, Christopher
    Abstract:
    Creating schedules for the job shop manufacturing system is an extremely difficult task. Although researchers have devoted a lot of attention to generating optimal solutions, these solutions are static, thus they do not update as random events occur that disrupt the system. As smart manufacturing has grown, researchers have been...
    Resource Type:
    Masters Thesis
    Full Text:
    Chung, and Dr. Karl R. Haapala for serving as my committee members. I also want to express special

  • Synthetic Lubricant Performance in Enclosed Gearbox Applications at Extreme Temperature

    Creator:
    Marr, Carter J.
    Abstract:
    The goal of this paper is to evaluate how synthetic lubricants perform in an enclosed gearbox application when compared with a proven mineral oil. This is in an effort to improve gearbox efficiency with the desired effect of lower emissions from of improved energy output from power generation. Four liquid...
    Resource Type:
    Masters Thesis
    Full Text:
    Dr. Burkan Isgor, Dr. Karl Haapala, and Kelly Jones for their invaluable contributions to this

  • Laser keyhole welding for microlaminating a high-temperature microchannel array

    Creator:
    Lajevardi, Babak
    Abstract:
    Microchannel process technology (MPT) components are chemical unit operations which exploit highly-parallel arrays of microchannels to process large fluid volumes for portable and distributed applications. Microchannel heat exchangers (MCHXs) have demonstrated 3 to 5 times higher heat fluxes when compared to conventional heat exchangers resulting in proportionate reductions in size...
    Resource Type:
    Masters Thesis
    Full Text:
    for the advice and support given by my graduate advisory committee Dr. Karl Haapala, Dr. David Kim

  • Development of an economical high temperature microchannel recuperator for solid oxide fuel cells

    Creator:
    Brannon, Samuel T.
    Abstract:
    To improve the performance of solid oxide fuel cells, a secondary power cycle can be driven by the recuperation of exhaust gas heat. Microchannel recuperators are attractive for waste heat recuperation due to compact form factors which also minimize the mass of the expensive superalloys required. This paper introduces a...
    Resource Type:
    Masters Thesis
    Full Text:
    ] 218 151 Density [Kg/m3] 8050 8050 Thermal Conductivity [W/m-K] 12 31.4 Haynes 214 Material