Mountain Scholar
Mountain Scholar is an open access repository service that collects, preserves, and provides access to digitized library collections and other scholarly and creative works from Colorado State University and the University Press of Colorado. It also serves as a dark archive for the Open Textbook Library.
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Recent Submissions
Steady upward flow from water tables
(Colorado State University. Libraries, 1965) Arbhabhirama, Anat, author; Corey, Arthur T., advisor; Kemper, William D., committee member; Hanks, R. John, committee member; Sandborn, Virgil A., committee member
The rate of upward flow from water tables is an important factor in irrigated areas for determining the depth at which water tables should be maintained. This study attempted to relate the maximum rate of upward flow to measurable soil parameters under various conditions of the soil-water system, and to determine more precisely the effect of hysteresis. Theoretical solutions were developed to determine the maximum upward flow rate as a function of depth of water table and necessary soil parameters. To verify these solutions, laboratory investigations were conducted. The experiments were conducted so that the ambient conditions did not affect the upward flow rates. Upward flow was induced at the top of the soil columns by means of an outflow siphon. An inflow siphon was connected to an inflow barrier at · the bottom of the soil column to maintain the water table as desired. Three conditions of the soil-liquid system were used, i.e., drainage, imbibition and imbibition-drainage cycles. The results gave good agreement between the theoretical solution and experimental results for both drainage and imbibition cycles. The imbibition-drainage cycle was conducted to study the effect of hysteresis. This effect caused the maximum rates of upward flow to drop 20 to 50 percent below the theoretical values.
Effect of depth of water table on evaporation from fine sand
(Colorado State University. Libraries, 1957) Staley, Robert William, author; Corey, Arthur T., advisor; Kemper, William D., committee member; Cermak, Jack E., committee member
The isolation of synaptosomes and synaptic plasma membranes from bovine cerebral cortex
(Colorado State University. Libraries, 1977) DiVerdi, Joseph Anthony, author
A method is described for the preparation of synaptosomes and synaptic plasma membranes from Bovine cerebral cortex. After homogenization of the tissue in isotonic sucrose, differential centrifugation yielded a crude mitochondrial fraction (P2) which was purified by centrifugation on a Ficoll-sucrose gradient. Assay of occluded Lactate Dehydrogenase and electron microscopy confirmed that synaptosomes survived the fractionation procedure and appeared in the P2B and P2C fractions, sedimenting to a density of approximately 1.117. The final membrane preparation had a specific 5' -nucleotidase activity (units/mg protein) over 10 times higher than the brain homogenate. Membrane fragments derived from outer mitochondrial membranes and microsomes appear to be the major contaminants. Gel electrophoresis revealed proteins migrating at approximately the same rate as contractile proteins.
Charge separation in heteroleptic Cu (I) donor-chromophore-acceptor triads involving 2,9-disubstituted 1,10-phenanthroline ligands
(Colorado State University. Libraries, 2007) Lazorski, Megan, author
Nuclear magnetic resonance of nucleic acids in the solid state
(Colorado State University. Libraries, 1981) DiVerdi, Joseph Anthony, author