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 9 of 9 for “"peak flow rate"”.
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Vegetated Swales in Urban Stormwater Modeling and Management
… maximum check dam height, minimum infiltration rate, maximum infiltration rate, minimum Manning's n, maximum Manning's n, minimum longitudinal slope, and maximum longitudinal slope. Peak flow rate, volume, and time to peak for each scenario were compared to the watershed's existing and …
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Development and Evaluation of a Gis-Based Spatially Distributed Unit Hydrograph Model
… cell by cell estimates of overland and channel flow velocities. The model considers slope, land use, watershed position, channel characteristics, and rainfall excess intensity in determining flow velocities. The cumulative travel time map is divided into isochrones which are used to generate a …
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The influence of body mass index on sensorimotor block and vasopressor requirement during spinal anaesthesia for elective caesarean section
… required, changes in hand grip strength, and peak flow rate. Results: There were no significant between-group differences in median block height as assessed by touch at 5 or 25 minutes, or by temperature at 5 minutes. At 25 minutes, there was a two-dermatome difference in median block height …
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Incorporating Spatial and Temporal Variation of Watershed Response in a GIS-based Hydrologic Model
… model which uses the Phi-index method to generate uniform excess rainfall. With the aid of a GIS, the cumulative flow time to the watershed outlet is estimated for each cell in the watershed and the isochrones of equal travel time are developed. The time-area curve is developed in the form of …
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Using Bioretention Retrofits to Achieve the Goals of Virginia's New Stormwater Management Regulations
… Method (RRM), which requires the product of the peak flow rate and runoff volume (Q*RV) from the one-year storm event in the post-development condition to be reduced to eighty percent of the pre-development Q*RV to protect against channel erosion. This study models different bioretention cell …
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Hydrologic simulation of storm water detention storage in an urbanizing flood-plan
… of urban drainage may be to greatly increase the peak flow rate and decrease the time to peak, flood control solutions of the 195's cannot handle the increasing development of the 197's. This has been experienced in rapidly growing coastal cities such as Houston, Texas. The purpose of the present …
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Design and Development of a Portable Multi-user Medical Grade Oxygen Concentrator
… pandemic has increased the demand for high-flow oxygen concentrators, particularly in resource-limited areas. There is a pressing need for an innovative, high-flow, multi-user oxygen concentrator using local materials to address this healthcare challenge. Methods: The study focused on …
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Analysing peak flow attenuation in an urban wetland
… changing precipitation patterns and hydrological flow resulting in event driven urban flooding. The approach to flood protection has recently shifted from engineered and technical solutions to more sustainable and integrated solutions, by considering social, ecological and physical implications …
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Effect of urban street pattern on drainage.
… kinds of evaluators. The first evaluator is the flow depth at certain points on the streets; the second evaluator is the total time during which the streets are occupied by a certain depth of water; the third evaluator is the total cost associated with the construction of a street pattern. A …