Index Catalog // ScholarsArchive@OSU

The effect of waste water lagoon effluent upon a receiving stream

Creator:: Sawyer, Harold Louis
Resource Type:: Masters Thesis
Full Text:: Stream THE EFFECT OF WASTE WATER LAGOON EFFLUENT UPON A RECEIVING STREAM by HAROLD LOUIS SAWYER

Transportation network connectivity, facilities encouraging walkability, and crime

Creator:: Bornasal, Floraliza B.
Abstract:: This thesis explores the relationship between crime, transportation network connectivity, and engineered facilities built to increase walkability through a case study of twenty-five sites within the city of Spokane, Washington. Using data spanning between 2008 and 2010, the author developed a GIS model representing conditions of the built environment, social...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Floraliza B. Bornasal for the

Static and cyclic response of ecoroof soil

Creator:: Kraupa, Travis J.
Abstract:: Green technology in the United States has been on the rise over the past few decades in the United States. However, certain green technologies have been developed in the absence of design standards. Ecoroofs, which are vegetated soil masses placed on the top of a building’s roof structure, present several...
Resource Type:: Masters Thesis
Full Text:: ..............................125 Appendix B: Static Simple Shear Procedure

Pore Water Pressure Response in Soil During Tsunami Loading : Numerical Formulation and Experimentation

Creator:: Abdollahi, Abbas
Abstract:: Tsunami loading can cause sediment instability, which can compromise the structural integrity of coastal buildings and infrastructure. To understand the process by which a tsunami can cause sediment instability, it is necessary to understand how the pore water pressure in the soil changes during tsunami loading. Tsunami run-up causes the...
Resource Type:: Dissertation
Full Text:: new formulation for the coefficient of consolidation as a function of Skempton’s B value is also

Disinfection of settled and unsettled trickling filter effluent by chlorination

Creator:: Monroe, Darrell Wayne
Abstract:: The colicidal efficiency of chlorine in both settled and unsettled trickling filter effluent samples was determined by means of a series of tests in which each sample was analyzed, at given time intervals, for suspended solids, pH, residual chlorine (orthotolidine and iodometric) and coliform count. A dye-tracer study, using Rhodamine...
Resource Type:: Masters Thesis
Full Text:: (orthotolidine and iodometric) and coliform count. A dye-tracer study, using Rhodamine B dye, was conducted on

Evaluation of Cycling Behavior: Factors that Influence Bicyclists’ Comprehension, Comfort, and Stress

Creator:: Cobb, Douglas P.
Abstract:: Travel demand has increased due to population growth, increase of vehicle ownership, and development patterns resulting in greater levels of congestion, pollution, and crash frequency. One approach to demand management is to increase the share of trips made by bicycles. With the increase in bicycling rates, there is a critical...
Resource Type:: Dissertation
Full Text:: comprehension and preference to traffic control devices and b) bicyclist’s behavior and physiological

Investigation, analysis and design of an experiment to test ponding loads on flexible roof systems

Creator:: Stark, Duncan
Abstract:: While damages due to ponding are common and expensive, provisions for design and construction of flat roof systems lack guidance regarding these loads. The goal of this research is to present methods of designing or building flat roofs that are less vulnerable to this condition. An investigation of the literature,...
Resource Type:: Honors College Thesis
Full Text:: .................................................................................................... 83 Appendix B: Results of Numerical Analysis

The contribution of morphologic slope on wave, current, and combined wave-current driven sediment flux and ripple geometry on an idealized sand mound

Creator:: Lee, Seok-Bong
Abstract:: Sediment convergence and divergence zones create subaqueous morphological features that range from ripples O (cm) to coastlines O (km). However, there is a gap in knowledge associated with quantifying the contribution of small-scale ripple mobility to the evolution of large-scale morphology. To address this gap, we investigate how small-scale ripples...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 A Supporting Information for Chapter 2 . . . . . . . . . . . . . . . . . . . 146 B Supporting

Experimental and analytical investigation of ponding load effects on a steel joist roof system

Creator:: Stark, Duncan
Abstract:: Ponding of water on roof systems leading to collapse causes expensive damage and jeopardizes the life safety of building occupants. Current building codes and design specifications for flat roof systems offer minimal guidance in designing for ponding loads. The present research investigated ponding load effects on a long span, lightweight...
Resource Type:: Masters Thesis
Full Text:: .................................................................................. 140 Appendix B: Design Calculation Checks

The effect of selected insecticides upon biochemical oxidation

Creator:: Norris, Francis Warren, Jr.
Abstract:: A study to determine the effect of certain synthetic organic insecticides on the Biochemical Oxygen Demand (BOD) Test was performed. BOD tests on a standard glucose-glutamic acid substrate were conducted while in the presence of dieldrin, dichlorodiphenyltrichloroethane (DDT), or diazinon. From the BOD data, the following parameters were obtained: 1....
Resource Type:: Masters Thesis
Full Text:: oxidation of organic matter (b) The influence of nitrification (Sawyer) 7 Comparison of k values on G

Assessing the Impact of Three Intersection Treatments on Bicyclist Safety

Creator:: Scott-Deeter, Logan K..
Abstract:: Bicyclist safety at urban intersections is a critical element for encouraging an increase in bicycle commuting. With bicycle injury and fatality rates rising due to collisions with vehicles at signalized intersections, increasing the safety of riders continues to be an important consideration when promoting this mode of transportation. Previous research...
Resource Type:: Masters Thesis
Full Text:: .................................................................................................53 Appendix B - Mixing Zone

Effect of carbon adsorption on chlorine requirement of treated effluent

Creator:: Chang, Chʻing-lin
Resource Type:: Masters Thesis
Full Text:: to nitrate. Sawyer (13, p. 252) stated that nitrous oxide, nitrogen, and nitrogen trichloride had

Effect of deposits in Columbia Slough on algae growth in Smith and Bybee lakes

Creator:: Sobolewski, William Joseph
Abstract:: Currently, the Port of Portland is developing a 9, 410 acre area at the confluence of the Columbia and Willamette Rivers in Multnomah County, Oregon. This area will be developed for industrial, commercial, and recreational use. The recreational development in the North Portland Peninsula area, including the Rivergate Industrial District,...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Dean of Graduate School Date thesis is presented b Typed by Opal Grossnicklaus for

Oxygen transfer in selected waste liquids

Creator:: Waki, Melvin Zane
Abstract:: A study to determine the oxygen transfer rates in selected waste liquids and to compare these rates with that of distilled water was performed. Tests using treated sewage and pulp and paper mill effluent were conducted in a model aeration tank. From the data, a, a ratio of the rate...
Resource Type:: Masters Thesis
Full Text:: Combined Results 39 SUMMARY AND CONCLUSION 40 BIBLIOGRAPHY 42 APPENDIX 44 Appendix A 44 Appendix B

An evaluation of variables affecting the virus removal capabilities of the coagulation-filtration process

Creator:: Chapman, Robert Lyle
Abstract:: The capabilities of the coagulation-filtration process for virus removal were evaluated by constructing and operating a one step, 2 gpm coagulation-filtration pilot plant. Multi-media filters were used without pre-coagulation and sedimentation. A T2 bacteriophage was used as the indicator organism. The plant was operated under a variety of conditions in...
Resource Type:: Masters Thesis
Full Text:: X X .. Coxsackieviruses group A .. X X Coxsackieviruses group B X X . . X Echoviruses .. X

Nutrients in runoff from spray irrigation of swine wastes

Creator:: Taylor, Dennis William
Abstract:: Major emphasis of this research study involved the evaluation of nutrient transport by overland flow. Samples gathered at various distances relative to a swine-waste spray irrigation system were used for the nutrient evaluation. As a result of this study, the following conclusions are made: 1. It is improbable that the...
Resource Type:: Masters Thesis
Full Text:: 0.14 0.10 0.13 C *7-14-69 0.5 0.70 0.27 0.19 0.76 A 11-18-71 3.5 0.5 0.01 0.11 0.04 0.08 B 11-18-71

Applying the Mixed Logit Model with Heterogeneity in Means and Variances to Pedestrian Injury Severity Outcomes

Creator:: Umphress, James
Abstract:: Walking is the single most universal mode of transportation in the world, but being a pedestrian exposes a traveler to high risk. Historically, pedestrians have consistently experienced disproportionately high rates of fatalities and severe injuries in traffic crashes. Research has probed into factors influencing pedestrian crash injury severity outcomes, but...
Resource Type:: Masters Thesis
Full Text:: -Incapacitating Injury (B) 1084 38.7% 887 38.6% 197 39.3% Suspected Injury (C) 1133 40.5% 973 42.3% 160 31.9

The character and biological treatability of log pond waters

Creator:: Hoffbuhr, Jack Wayne
Abstract:: A study was conducted to determine the chemical nature and the biological treatability of log pond water. Various analyses including total solids, volatile solids, suspended solids, dissolved oxygen, pH, COD, BOD₅, BOD₂₀, total Kjeldahl nitrogen, nitrate nitrogen, phosphate, and PBI were performed on water samples from each of the four...
Resource Type:: Masters Thesis
Full Text:: Page 1 Typical log pond 12 2 Log pond water 12 3 Pond B 13 4 Diagram of experimental apparatus used

High-shear and pressure activated sludge treatment : solid-liquid separation

Creator:: Coddington, Charles William
Abstract:: Since the development of the activated sludge process in 1913 many attempts have been made to improve it. One approach has been to increase the oxygen available to the bio-mass. This study combined the use of elevated pressure and high-shear mixing to increase the oxygen transfer. The conventional method of...
Resource Type:: Masters Thesis
Full Text:: representation of the solid -liquid interface descend. 6 In Figure 1 the curve between A and B represents

Radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface

Creator:: Davis, Brian M.
Abstract:: This study investigated the use of radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface. Laboratory physical aquifer models (PAMs), field experiments, and numerical simulations were used to investigate radon partitioning in static (no-flow) experiments and in single-well, 'push-pull' tests conducted in...
Resource Type:: Dissertation
Full Text:: ................ 187 B: Radon Data Reduction ..................................................................... 193

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