Index Catalog // ScholarsArchive@OSU

Use of Controlled Blasting to Quantify the Dynamic, In-Situ, Nonlinear Inelastic Response of Soils

Creator:: Jana, Amalesh
Abstract:: The seismic response of deep deposits of liquefiable and cyclic-softening susceptible soils has presented the geotechnical profession with significant engineering challenges. Strong ground motions may serve to soften soils under cyclic shear, trigger liquefaction, and produce damaging displacements as a consequence. This study improves the understanding of the in-situ, nonlinear,...
Resource Type:: Dissertation
Full Text:: pressure, tp the variation of excess pore pressure with shear strain, and the degradation of shear

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:: 5, BOD 5 removals varied from 80% for a one-day detention period to 93% (Aeration Unit 1) for a

Characterization of Stormwater Runoff from a County Maintenance Facility and Evaluation of Temporal Performance of Bioswale in Its Treatment

Creator:: Gyawali, Kshitiz
Abstract:: In the last few decades, a lot of studies have been conducted to study about the quality of stormwater runoff from various sites and conditions. Highways, residential areas, and commercial sites are the focus of most of these studies while limited studies have done examination of stormwater from Maintenance and...
Resource Type:: Masters Thesis
Full Text:: Pollutographs of Total Phosphorus (mg P/L) at influent and effluent for the monitored storms ( Influent TP

Behavior of a compliant wave-current barrier

Creator:: Kerper, Dale R.
Abstract:: This study includes an analytical solution to the wave-current barrier interaction problem and large scale experiments to validate the theory. The boundary value problem is solved mathematically by characterizing the flow field and barrier motion separately, then coupling the relationships with the appropriate kinematic and dynamic boundary conditions. The flow...
Resource Type:: Masters Thesis

Modelling, validation and simulation of multi-degree-of-freedom nonlinear stochastic barge motions

Creator:: Bartel, Warren A.
Abstract:: Recent developments in estimation of the survivability of a U.S. Navy transport barge in random seas are extended to improve accuracy. The single Degree-of-Freedom (DOF) model of a extreme roll response of a barge used in previous research is replaced by a 3-DOF roll-heave-sway model to include linear and nonlinear...
Resource Type:: Masters Thesis
Full Text:: , Tp=8.2 s 92 5.9 Sway Spectral Densities, Hs=4.7 ft, Tp=8.2 s 93 5.10 Wave Histograms, Hs=4.7 ft

Oregon coastal lake study : phosphorus loading and water quality implications

Creator:: Blair, Michael Stuart
Abstract:: A study of phosphorus loading and water quality implications was conducted for the Oregon coastal lakes. The study was based on existing data for lake total phosphorus concentrations and for watershed land uses. A phosphorus mass-balance model was developed to predict lake total phosphorus concentrations from estimated phosphorus loading from...
Resource Type:: Masters Thesis
Full Text:: FIGURES Figure 5.1: Predicted TP vs. Measured TP 70 Figure A.1: Cullaby Lake 96 Figure A.2: Eckman Lake

Molecular analysis of bacterial community dynamics during bioaugmentation studies in a soil column and at a field test site

Creator:: Li, Jun
Abstract:: 1,1,1-Tricholorethane (1,1,1-TCA), a widely used industrial solvents, is one of the most common subsurface contaminants. Transformation processes in the subsurface can result in the production of 1,1-dichioroethane (1,1-DCA) and 1,1- dichioroethene (l,1-DCE) from 1,1,1-TCA contamination, resulting in plumes of mixed chlorinated aliphatic hydrocarbons (CAHs). A butane-utilizing microorganism, strain 1 83BP,...
Resource Type:: Masters Thesis
Full Text:: well leg. Although 93% of the influent 1,1-DCE was transformed, 1,1 -DCA and 1,1,1 -TCA removal

Behavior of a circular cell bulkhead during construction

Creator:: Khuayjarernpanishk, Thanasarn
Abstract:: A single cell in a 12 cell bulkhead was instrumented to observe its behavior and confirm design assumptions during construction. Vibrating wire strain gages were employed to measure horizontal strains in sheetpiling webs. These were converted to interlock force at eight locations and three elevations around the cell. The deformed...
Resource Type:: Dissertation
Full Text:: STUDY AND DESIGN 92 Future Studies 92 Future Designs 93 BIBLIOGRAPHY 94 APPENDICES Appendix I - Sheet

Experimental investigation of stresses in steel I-beams with rectangular holes in the webs

Creator:: Landers, William Brooks
Resource Type:: Dissertation
Full Text:: G18 G2 G3 G4 G5 R5 V G7 G6 R3 R8 V G16 R7 V G15 R6 G23 G24 G26 G27 Scale - 3/16" = 1

On the nearshore impact of wave energy converter arrays

Creator:: O'Dea, Annika Magnuson
Abstract:: Radiation stresses, defined as the excess flow of momentum due to the presence of waves (Longuet-Higgins, 1964), are the main drivers behind the cross-shore and longshore forcing that results in wave setup, set-down, and longshore currents (e.g. Svendsen, 2006). Longshore currents entrain and transport sediment and therefore play an important...
Resource Type:: Masters Thesis
Full Text:: array, and d) θ in the lee of a closely-spaced array from trials with an input Hs = 6 m, an input Tp

ScholarsArchive@OSU

Use of Controlled Blasting to Quantify the Dynamic, In-Situ, Nonlinear Inelastic Response of Soils

The character and biological treatability of log pond waters

Characterization of Stormwater Runoff from a County Maintenance Facility and Evaluation of Temporal Performance of Bioswale in Its Treatment

Behavior of a compliant wave-current barrier

Modelling, validation and simulation of multi-degree-of-freedom nonlinear stochastic barge motions

Oregon coastal lake study : phosphorus loading and water quality implications

Molecular analysis of bacterial community dynamics during bioaugmentation studies in a soil column and at a field test site

Behavior of a circular cell bulkhead during construction

Experimental investigation of stresses in steel I-beams with rectangular holes in the webs

On the nearshore impact of wave energy converter arrays

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