Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"artificial rainfall"”.
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Using Electrical Resistivity Imaging to Relate Surface Coal Mining Valley Fill Characteristics to Effluent Stream Quality
… fills in two dimensions. We combined ERI with artificial rainfall to investigate the location and transit time of hydrologic preferential infiltration flowpaths through the fills. Finally, we used our ERI results in conjunction with SC data from effluent streams to improve understanding of SC …
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An opto-electronic soil profile meter
… to measure soil elevations before and after an artificial rainfall for erosion studies. The design goals were to measure the heights of the soil in a 1.5 x 1.5 m bin with an accuracy of ±1.0 mm and at a data collection rate of 2 points per second. The profiler consisted of a laser and a digital …
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The influences of atmospheric nitrates and annual climatic variables in predisposition to winter desiccation injury in Fraser fir and red spruce
… and from seedlings under 4 treatments of artificial rainfall. varying by N03 concentration. Samples were collected 4 times over the 1987 growing season. Responses were similar in shadehouse and field samples. Wax content differed between collections but not between treatment levels. except …
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The effects of contaminant aging and decontamination logistics on remediation after a radiological dispersal event
… at 65% - 75% average relative humidity with artificial rainfall events, the majority of cesium was found within the first one millimeter of the subsurface. The application of rainfall events after contamination facilitated the migration of cesium into the concrete subsurface. The …
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Simulation of phosphorus transport in vegetative filter strips
… and 0.0, 4.6, or 9.1 m grass filter strips. Artificial rainfall was applied to the plots, and surface runoff, soil, and plant material samples were collected and physically and chemically analyzed. The VFS reduced surface runoff, suspended solids, and phosphorus losses. Most removal of …
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Electrical Resistivity Imaging of Preferenital Flow through Surface Coal Mine Valley Fills with Comparison to Other Land Forms
… and hydrologic flows. We paired ERI with artificial rainfall experiments to track highly conductive infiltrated water as it moved through the valley fill. The subsurface structure of two other landforms were also imaged to confirm variations between forms. Results indicate that ERI can be …
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Evaluation of Rotational Bale Grazing as an Alternative Winter-Hay Feeding System for Beef Cows
… sediment runoff in comparison to traditional SP. Artificial rainfall simulations were conducted on a SP, RBG first paddock grazed in the rotation (RBG first), and RBG last paddock grazed in the rotation (RBG last). The most significant differences were observed between the RBG first and last …
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Environmental and efficacy studies of a chromated fluoride wood preservative
… treatment. Above each model unit was a source of artificial rainfall to encourage leaching conditions and a source of phtosynthetically active radiation for consecutive crops of Perennial ryegrass (<i><b>Lolium perenne</b></i>) and Rye (<i><b>Secale cereale</b></i>).<br/><br/>Soil concentrations …