Civil and Environmental Engineering
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Effects of groundwater pumping for irrigation on stream properties of the Arikaree River on the Colorado plains
The Arikaree River lies in the Republican River Basin on the Northern High Plains of Colorado. This study was conducted on the portion of the Arikaree River that flows through the lower portion of Yuma County, Colorado. A ... -
Effect of irrigation practices on stream depletion in the Arikaree River, eastern Colorado
Irrigated agriculture is of paramount importance to the economy and livelihoods of those living in much of Eastern Colorado. Here, wells feeding center pivot systems draw groundwater from the High Plains Aquifer, and are ... -
Vertical sorting within dune structure
Vertical sorting of sediment mixtures within dune structures was measured experimentally by conducting three types of experiments: running water experiments, still water experiments, and air experiments. Five different ... -
Resistance components and velocity distributions of open channel flows over bedforms
The components of flow resistance and the velocity distributions of open-channel flows over bedforms were investigated by conducting idealized bedform experiments in a laboratory flume. Experiments involving uniform smooth, ... -
Development and demonstration of a multiple stage anaerobic digester for the treatment of high solids wastes, The
The semi-arid Great Plains of the central United States is home to numerous high-density, confined animal feeding operations (CAFOs) that utilize outdoor animal pens. These facilities generate a desiccated manure very ... -
Spatial and temporal channel changes across the watershed scale following wildfire and floods
Fires and floods are important drivers of geomorphic change. The hydrologic and sedimentologic effects of fires have been relatively well studied at the hillslope scale, but we still lack the ability to accurately quantify ... -
Effects of explosive pressure on cadaveric ovine auditory tissue
The focus of this research centered around two main goals: 1) determine the allowable pressures that people can be exposed to in non-life-threatening situations and 2) determine the pressure required to rupture a sheep ... -
Nonlinear free vibration of beams by one-dimensional and elasticity solutions
In this research, linear and nonlinear free vibration are examined. A three-dimensional rectangular parallelepiped free–free beam is studied based on the Ritz method. The equation of motion is derived depending on Hamilton's ... -
Dynamics of flow in river bends
Water is indispensable to life and the means by which it is conveyed is equally important. Natural rivers and manmade channels play a critical role in this respect because they are vital for water supply, navigation, ... -
Characterization of urban water use and performance evaluation of conservation practices using the Integrated Urban Water Model in São Paulo, Brazil
Increasing urban population around the globe has intensified the need for water, food and energy. The residential sector is responsible for the highest water use in urban settings. Understanding the factors affecting water ... -
Enhancement of coupled surface / subsurface flow models in watersheds : analysis, model development, optimization, and user accessibility
To view the abstract, please see the full text of the document. -
Determination of seismic performance factors for cross laminated timber shear wall system based on FEMA P695 methodology
Cross Laminated Timber (CLT) was initially introduced in Europe and has recently gained popularity in North America where it is seen as a sustainable alternative to steel and concrete in midrise construction. Although most ... -
Spatial simulation of snow and frozen ground using a modified temperature-based model
Volume and timing estimates of snowpack and subsequent streamflow are vital for water management and flood forecasting in snow-dominated regions. Numerical models are often employed to estimate the depth of snowpack and ... -
Collaborative planning framework for integrated urban water management with an application in dual water supply : a case study in Fort Collins, Colorado, A
Urban water management is essential to our quality of life. As much of our urban water supply infrastructure reaches the end of its useful life, water managers are using the opportunity to explore alternative strategies ... -
Processes governing the performance of oleophilic bio-barriers (OBBs) – laboratory and field studies
Petroleum sheens, a potential Clean Water Act violation, can occur at petroleum refining, distribution, and storage facilities located near surface water. In general, sheen remedies can be prone to failure due to the complex ... -
Environmental impacts of oil and gas activities in northern Colorado
The surge of shale oil and gas exploration and production in the United States is driven by the application of horizontal drilling and hydraulic fracturing which require and generate massive amount of water during the ... -
To treat or not to treat : the evolution of wastewater treatment management approaches
The research presented in this thesis focuses on wastewater management practices to further the understanding of the evolution of wastewater treatment approaches. Within this thesis, wastewater treatment technologies and ... -
Pre-oxidation and adsorption with powdered activated carbon for taste and odor control and optimizing coagulation for dissolved organic carbon removal
Geosmin and MIB (2-Methylisoborneol) are the two natural organic compounds produced by certain types of blue-green algae which cause taste and odor (T&O) issues in the sources of drinking water. Geosmin and MIB are not ... -
First quarterly progress report of bentonite sealing investigations : during period of February 1, 1960 to May 1, 1960
Under terms of a recent contract with the District, the University agreed to: 1. Assist in the location evaluation and development of deposits of bentonite within or close to the area comprising the Southeastern Colorado ... -
Second quarterly progress report of bentonite sealing investigations : during period of May 1, 1960 to August 1, 1961
This report summarizes the bentonite project activities during the past three months This report is primarily concerned with those activities in the Conservancy District area; however, information relating to other areas ...
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