Index Catalog // ScholarsArchive@OSU

Treatment of activated sludge process effluent by carbon adsorption

Creator:: Davis, Stewart Lee
Abstract:: An evaluation of the service time of an activated carbon adsorption column and the organic carbon removal efficiency treating activated sludge process effluent was completed at aerator detention times of three, five, and ten hours. Parameters used for evaluation of treatment were biochemical oxygen demand, chemical oxygen demand, total organic...
Resource Type:: Masters Thesis
Full Text:: adsorption AN ABSTRACT OF THE THESIS OF Stewart Lee Davis (Name of student) in Civil Engineering

A torsional investigation of a concrete I grider

Creator:: Martin, Roy Charles
Abstract:: This paper investigates a particular bridge construction technique which could result in a significant torsional moment. The structural member under consideration is a prestressed concrete girder for which no torsional consideration is made. Torsional shear stresses can be adequately approximated for an I-shaped girder. Laboratory model tests were performed to...
Resource Type:: Masters Thesis
Full Text:: Code. Proceedings (Journal) of the American Concrete Institute 56:591-618. Cowan, Henry J. and Stewart

Fate of ammonia volatilized from a confinement livestock facility

Creator:: Hoffman, Eldon Randall
Abstract:: A conceptual model was developed to further the understanding of the evolution and fate of volatilized ammonia in the atmosphere. Recent trends in livestock rearing have been toward confinement facilities in which high animal concentrations are maintained. One of the impacts of these facilities has been increased local concentrations of...
Resource Type:: Masters Thesis
Full Text:: (Stewart, 1970), and approximately 90% of the dry fecal matter is undigested organics of which 60 to 75

A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

Creator:: Simpson, Chase H.
Abstract:: Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
Resource Type:: Masters Thesis
Full Text:: positioning, can increase image observations per point resulting in improved survey precision (James, Robson

Aircraft washrack wastes : their characteristics and treatment

Creator:: Evans, David Roland
Abstract:: Oils, greases, and grit which collect on an aircraft during flight are removed on the U. S. Air Force washracks using an alkaline, water-base cleaner. Waste-flows from these washracks may include in addition to free oils, emulsified oils, and alkaline, water-base cleaners several other constituents such as acid skin brightners,...
Resource Type:: Masters Thesis
Full Text:: , James Connally AFB. 66 16 Chemical tests, McCoy AFB. 66 17 Chemical tests, Norton AFB. 67 18

Determination of equilibrium partial pressure of ammonia gas above anaerobically digested sewage sludge

Creator:: English, Charles Joseph
Abstract:: A laboratory study of anaerobically digested sewage sludge was performed to measure equilibrium constants for ammonia in the sludge. Measured constants describing the solution and dissociation of ammonia in sludge were compared to theoretical constants obtained from thermodynamic data. No significant difference was found between these two sets of constants....
Resource Type:: Masters Thesis
Full Text:: also reported substantial losses due to volatilization. Stewart, et al. (44) applied sludge

Correlation of methods for solving indeterminate frames

Creator:: Liu, David Cheng-Tso
Resource Type:: Masters Thesis
Full Text:: the 'elation betvieen beam curvature and bending nionent in 1694 by James Bernoulli (5, p.416), and

A method of seismic design for prestressed concrete highway bridge girders

Creator:: Lam, Kwok To
Abstract:: The effects of vertical ground motion are particularly significant in the design of highway bridge girders. Conventional codes do not recommend methods for solving the problem. The intent of this work is to suggest an approach for such design. A set of curves for velocity spectra which are the average...
Resource Type:: Masters Thesis
Full Text:: as that of a reinforced beam. This fact has been shown by Merlin L. James and his co- author in

Assessing the Trade-Off Between Sustainability and Resiliency of Reinforced Concrete Alternatives in Corrosive Conditions: An LCA-System Dynamics Approach

Creator:: Moreno Rangel, Erick D.
Abstract:: Concrete has been categorized as a key contributor of CO2 (carbon) emissions into the atmosphere. This is mostly associated with the production of ordinary portland cement (OPC). The concrete and cement industries are pursuing a path to reduce their carbon emissions generally in accordance with the climate change goals outlined...
Resource Type:: Masters Thesis
Full Text:: like to acknowledge Nicholas Peterson, James Batti, Paul Montagne, Jeremy Smith, Dr. Rita Ghantous

The Number of Lanes and Crash Injury Severities of Commercial Motor Vehicle Drivers: Advanced Econometric Models and Applications

Creator:: Kim, Jaekook
Abstract:: Considering the deadly impacts of commercial motor vehicle (CMV) crashes on road safety, many previous studies have put in efforts to find the determinants of CMV crash injury severities. However, studies examining the impact of the different number of lanes on CMV crash injury severities are lacking. Besides, the importance...
Resource Type:: Masters Thesis
Full Text:: for my achievement. Thank you to James Umphress, Namu Timilsina, and Sukallyan Ghosh: it was a great

ScholarsArchive@OSU

Treatment of activated sludge process effluent by carbon adsorption

A torsional investigation of a concrete I grider

Fate of ammonia volatilized from a confinement livestock facility

A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

Aircraft washrack wastes : their characteristics and treatment

Determination of equilibrium partial pressure of ammonia gas above anaerobically digested sewage sludge

Correlation of methods for solving indeterminate frames

A method of seismic design for prestressed concrete highway bridge girders

Assessing the Trade-Off Between Sustainability and Resiliency of Reinforced Concrete Alternatives in Corrosive Conditions: An LCA-System Dynamics Approach

The Number of Lanes and Crash Injury Severities of Commercial Motor Vehicle Drivers: Advanced Econometric Models and Applications

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