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Now showing items 91-100 of 195
Quantifying the Impact of Experimental Factors on the Measurement of Dynamic Capillary Effects in Unsaturated Porous Media
(2014-12-12)
Multiphase flow is an important phenomenon in many natural and engineering systems; for example, oil recovery and water movement in the unsaturated zone are two common multiphase flow systems. The capillary pressure-saturation ...
Social learning for sustainability: A local government approach.
(2000)
This research integrates theoretical constructs from the literature on social learning and policy innovation, together with site-specific information, in the creation of a decision-making schematic for environmental policy ...
Heuristic statistical models for carbon monoxide in El Paso, Texas.
(1982)
On the basis of existing data it was determined that while traffic is the major source of CO in the area, meteorological factors provide the dominant influence in the elevation of these concentrations to levels that exceed ...
The mathematical macroscopic optimization procedures for transportation safety resource allocation in local urban jurisdictions.
(1982)
Two mathematical programming models, named the Feasibility Assessment Technique and the Optimality Assessment procedure, are developed in this dissertation to select, analyze and allocate safety countermeasures that result ...
Impact of elevated temperatures on soil tensile strength
(2021-05-14)
Tensile strength of unsaturated soils is a critical factor controlling the initiation and propagation of desiccation cracks, which can threaten the structural integrity of natural and man-made earthen structures and slopes. ...
LABORATORY DEVELOPMENT AND MOLECULAR-SCALE SIMULATION OF SENSOR-ENABLED GEOGRIDS
(2015-12-18)
Structural health monitoring (SHM) and performance assessment are increasingly integrated to modern civil engineering projects in order to prevent and mitigate their catastrophic premature failures. Significant advancements ...
Interpretation of shear wave velocity in unsaturated soils
(2023-12-15)
Shear wave velocity measurements in soil can provide estimates of small strain stiffness and are used for seismic site classification. In comparison to saturated soils, there has been relatively little research on the ...
Utilization, planning, and problem evaluations of urban arterial waterways and corridors as an urban resource.
(1981)
Widespread concern about flooding and possible use of the nation's urban river corridors has generated unprecedented interest in the potential for utilization of urban riverine corridors while simultaneously protecting the ...
Kinetic and isotope analyses during abiotic transformation of chlorinated hydrocarbons by iron and sulfur minerals
(2009)
Abiotic reductive dechlorination of tetrachloroethylene (PCE), trichloroethylene (TCE), and carbon tetrachloride (CT) by naturally occurring minerals was investigated in this study. The kinetics and in some cases stable ...