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  • Metabolic engineering of Shewanella oneidensis MR-1 for microbial fuel cell application

    Creator:
    Hall, Robert G. (Robert George)
    Abstract:
    Shewanella oneidensis MR-1 is a gram-negative, facultative anaerobic bacteria with the capability of dissimilatory metal reduction. The ability of the organism to reduce a wide range of solid metal-oxides during anaerobic respiration makes it an ideal candidate for the powering of microbial fuel cells (MFCs), which capture the electrons discharged...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Biological and Ecological Engineering presented on August 3, 2011. Title

  • Modeling phosphorus sequestration and release in an Upper Klamath Basin wetland

    Creator:
    Mulford, Emily L.
    Abstract:
    Upper Klamath Lake (UKL) and Agency Lake (AL) in southern Oregon are both hypereutrophic, in large part due to natural and anthropogenic loading of phosphorus (P), resulting in annual blooms of blue-green algae. Reduction of P loading to the lake is considered crucial to reduce the blue-green algae blooms, maintain...
    Resource Type:
    Masters Thesis
    Full Text:
    . Mulford for the degree of Master of Science in Biological and Ecological Engineering in presented on May

  • High frequency water vapor density measurements using the beat frequency method

    Creator:
    Elorriaga Montenegro, Estefania
    Abstract:
    This document describes the design and deployment of a first generation water vapor density sensing unit, the HumiSense. This device is based on an open, air-filled capacitor which is part of a resonant circuit. The frequency of the resonant circuit mixed with a fixed frequency oscillator is the basis of...
    Resource Type:
    Masters Thesis
    Full Text:
    in Biological and Ecological Engineering presented on June 15, 2012. Title: High Frequency

  • Influence of processing parameters on diffusion of divalent nickel in wet silica sol-gel monoliths

    Creator:
    Dickson, David J.
    Abstract:
    The diffusion of divalent nickel (Ni²⁺) from wet silica gels was investigated. Silica gel is gaining interest as an encapsulation matrix for biological components. The transport of biologically relevant species within the gel is determined by the structural characteristics of the gel, which are in turn governed by synthesis parameters....
    Resource Type:
    Masters Thesis
    Full Text:
    Biological Engineering. Professors Brady Gibbons, David Cann, and Bill Warnes were particularly welcoming

  • OME : A Framework for Running Spatially Explicit System Dynamics Models

    Creator:
    Wingo, Patrick C.
    Abstract:
    The Open Modeling Environment (OME) is a tool developed to address some known shortcomings in ecological System Dynamics (SD) modeling research. OME provides a common set of methods for interacting directly with spatial information, reducing the need for modelers to create their own methods for doing so. The environment is...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Biological and Ecological Engineering presented on June 8, 2015. Title: OME: A

  • Evaluation of failure diagnosis in conceptual design of mechanical systems

    Creator:
    Ruff, David N.
    Abstract:
    A methodology for improving quality and reducing life cycle costs of mechanical systems is described. The principal concept is that a system can be designed, in the conceptual stages, to be easier to diagnose for failures. To perform this, functional decomposition and form to function mapping are utilized both as...
    Resource Type:
    Masters Thesis
    Full Text:
    Mechanical Engineering presented on July 9. 1992 . Title: Evaluation of Failure Diagnosis in Conceptual

  • Modeling the Influence of Wildfire Management Networks in Social-Ecological Systems

    Creator:
    Avila, Colton C.
    Abstract:
    Wildfire management networks allow for collaborative intervention in mitigating the ever-present risk of major wildfire events. This thesis consists of two manuscripts that explore the topology and characteristics of wildfire management networks and their ability to influence wildfire severity in social-ecological systems. The first manuscript focuses on the characteristics of...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Biological and Ecological Engineering presented on June 9, 2023. Title

  • Measuring Tomato Production and Water Productivity in Agrivoltaic Systems

    Creator:
    Al-agele, Hadi A.
    Abstract:
    Growing populations and industrialization rates across the world are leading to increased food and energy demand. The challenge of meeting this demand while also mitigating climate change impacts serves as a driving force for the development of renewable energies technologies. This study focuses on the role of Agrivoltaic systems in...
    Resource Type:
    Masters Thesis
    Full Text:
    -agele for the degree of Master of Engineering in Biological and Ecological Engineering presented on

  • Understanding Aquifer Water Retention Dynamics Using Groundwater Head Relaxation Time

    Creator:
    Jimmie, Jordan A.
    Abstract:
    Diking and channelizing in the Toppenish Creek basin, associated with irrigated agricultural development, has altered its natural ecosystem function and hydraulic processes. We seek to answer two research questions: if surface waters are diverted for aquifer recharge in the winter, will this water be available for ecosystem function in the...
    Resource Type:
    Masters Thesis
    Full Text:
    Jordan A. Jimmie for the degree of Master of Science in Biological and Ecological Engineering presented

  • Hemicellulose utilization by yeast for ethanol production- adaptation, effect of inhibitors and a flux balance based analysis

    Creator:
    Avanasi Narasimhan, Ragothaman
    Abstract:
    A major challenge in ethanol production using lignocellulosic feed stock is inefficient utilization of hemicellulose, which accounts for 30-40% of lignocellulosic biomass. Xylose, comprising >60% of recoverable sugars from hemicellulose is a major product of the hemicellulose hydrolysis. Utilization of this carbon source would significantly increase the ethanol yield from...
    Resource Type:
    Masters Thesis
    Full Text:
    in Biological and Ecological Engineering presented on November 18, 2010. Title