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Now showing items 11-20 of 39
Effects of pH, inorganic anions, and surfactants on the photocatalytic degradation of aqueous ammonia in graywater.
(2007)
Key words: Aqueous ammonia, Titanium dioxide, pH, Inorganic anions, Surfactants, Hydroxyl radicals, Graywater
Durability of cementitiously stabilized aggregate bases for pavement application.
(2005)
Cementitious stabilization has been extensively used to improve the performance of pavement materials. In the past, emphasis has been placed on observing the macromanifestation of stabilized pavement materials, but to 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 ...
A framework-based finite element approach for solving large deformation problems in multi-phase porous media.
(2005)
The performance of the uniform gradient element formulation is studied by simulating settlement of a footing and dynamic behavior of a saturated clay embankment and a level ground. Significant hourglassing is seen for the ...
A practicing engineer's perspective on nonlinear finite element analysis techniques for reinforced concrete structures.
(2004)
The research demonstrates the continued progress in finite element analysis of reinforced concrete structures. Increasingly, structural engineers will use this method in their designs, and in research into materials and systems.
Seismic Vulnerability of Residential Structures in Nicaragua
(2009)
In recent times, many parts of the world have seen a trend of increased construction with reinforced concrete and masonry block systems. These systems can provide excellent seismic resistance when they are designed by an ...
The use of fecal bacteria in the assessment of the environmental impact by concentrated animal feeding operations on water quality.
(2004)
Many sources of pollution, including agricultural, industrial, and urban sources, can increase a stream or lake's nutrient and bacterial concentrations. In order to improve water quality, these sources must be identified, ...
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 ...
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 ...
Impact of physiological state and macro-nutrient ratio on microbial surface thermodynamics and transport.
(2002)
As both deposition and retardation occur during bacterial transport, the deposition coefficient and retardation factor have been widely used individually in describing the transport of bacteria through porous media. Rijnaarts ...