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  • Development of predictive mapping techniques for soil survey and salinity mapping

    Creator:
    Elnaggar, Abdelhamid A.
    Abstract:
    Conventional soil maps represent a valuable source of information about soil characteristics, however they are subjective, very expensive, and time-consuming to prepare. Also, they do not include explicit information about the conceptual mental model used in developing them nor information about their accuracy, in addition to the error associated with...
    Resource Type:
    Dissertation
    Full Text:
    MAPPING TECHNIQUES FOR SOIL SURVEY AND SALINITY MAPPING ABDELHAMID A. ELNAGGAR

  • Degrees of Connectivity : A Systematic Accident Causation Model

    Creator:
    Alomari, Kasim A.
    Abstract:
    With all of the efforts that have been conducted over the past 100 years since the first accident causation theory was published, the Accident Proneness theory by Vernon (1918), the construction still trails among different industries in terms of fatal and nonfatal work injuries. Theories and models that have been...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Kasim A. Alomari

  • Risk and Reward Perception and Risk-Taking: Applicability, Relationship, and Implication in Construction Safety

    Creator:
    Azeez, Mohammed N.
    Abstract:
    While safety improvements have been made in the construction industry, construction still experiences one of the highest numbers of fatalities annually compared to other industries in the United States with over 970 fatalities in 2016 alone. This number of fatalities drives researchers and safety managers to improve safety measures and...
    Resource Type:
    Dissertation
    Full Text:
    : ___________________________________________________ John A. Gambatese While safety improvements have been made in the construction industry

  • Framework for assessing the potential safety performance of construction mechanical and electrical field employees

    Creator:
    Moghaddam Vahed, Ali
    Abstract:
    In the field of construction safety, many researchers have worked to create assessment tools. These tools focus on different aspects of construction safety, such as assessing safety climate, safety culture, etc. Although research indicates that the majority of incidents are caused by unsafe behaviors and acts, there are no comprehensive...
    Resource Type:
    Masters Thesis
    Full Text:
    Employees. Abstract approved: ______________________________________________________ John A

  • Predicting the spatial variability in soil properties using DSM across Malheur National Forest

    Creator:
    Seeno, Elizabeth A.
    Abstract:
    Soil properties may hold the key to improved predictions of soils during digital soil mapping (DSM), which has developed with a focus on environmental factors external to soil. The spatial variability in soil properties was modeled across Malheur National Forest in eastern Oregon as an approach to improve DSM. The...
    Resource Type:
    Masters Thesis
    Full Text:
    using DSM across Malheur National Forest AN ABSTRACT OF THE THESIS OF Elizabeth A. Seeno for the

  • Some contributions to asymmetric error control codes

    Creator:
    Elmougy, Samir
    Abstract:
    In some practical systems, most of the errors are of 1 → 0 type and 0 → 1 errors occur very rarely. In this thesis, first, the capacity of the asymmetric channel is derived. The capacity of the binary symmetric channel (BSC) and the Z-channel can be derived from this...
    Resource Type:
    Dissertation
    Full Text:
    beyond the max- imum designed error detection capability are described. Third, a new class of a

  • A discrete numerical study of micromechanics of sand liquefaction

    Creator:
    Zhang, Lei
    Abstract:
    Liquefaction of saturated granular material due to cyclic loading can result in catastrophic damage to the built environment. The mechanics of liquefaction have been previously studied through field testing, physical modeling, laboratory experiments, and numerical simulations. However, significant questions remain with respect to the particle-scale behavior of granular materials during...
    Resource Type:
    Dissertation
    Full Text:
    . Title: A Discrete Numerical Study of the Micromechanics of Sand Liquefaction Abstract approved

  • A formal model of construction safety and health risk management

    Creator:
    Hallowell, Matthew R.
    Abstract:
    Despite recent efforts to improve site safety, construction still accounts for a disproportionate injury and illness rate. According to the 2007 injury and illness data released by the National Safety Council, the construction industry has a fatality and disabling injury rate that is approximately three times higher than the all-industry...
    Resource Type:
    Dissertation
    Full Text:
    in Civil Engineering presented on March 18, 2008. Title: A Formal Model for Construction

  • John Archibald Wheeler : a study of mentoring in modern physics

    Creator:
    Christensen, Terry M.
    Abstract:
    This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
    Resource Type:
    Dissertation
    Full Text:
    of Science on April 3, 2009. Title: John Archibald Wheeler: A Study of Mentoring in Modern Physics

  • Predictive mapping for the delineation of landtype association units in the Fremont National Forest, Oregon

    Creator:
    Malone, Melanie R.
    Abstract:
    Predictive Soil Mapping (PSM) has recently become an attractive method for soil scientists wishing to develop a more objective and efficient approach to mapping soils. Due to the potential PSM has for reducing the effort to produce soil maps, as well as its ability to improve the classification accuracy of...
    Resource Type:
    Masters Thesis
    Full Text:
    volunteer their time. Thanks to all of my wonderful fellow graduate students Abdelhamid Elnaggar