Index Catalog // ScholarsArchive@OSU

An investigation on photoneutron production from medical linear accelerators

Creator:: Eller, Leanna R.
Abstract:: The photoneutron production from three Varian linear accelerators ranging in energies from 6 MV to 23 MV has been investigated. Photoneutrons are produced during (γ, n) interactions with materials located within the treatment head. These unwanted neutrons not only increase patient dose, but may also lead to the requirement of...
Resource Type:: Masters Thesis
Full Text:: ro ss S ec ti o n [ m b ] Photon Energy [MeV] 17 in order to achieve greater doses at

Hydrothermal links between ocean plateau formation and global anoxia at the Cenomanian-Turonian boundary

Creator:: Snow, Laura J.
Abstract:: The Cretaceous was a period of extreme climatic conditions accompanied by major perturbations in ocean-atmosphere biogeochemical cycles. One of the most intriguing features is the sporadic interruption of normal marine pelagic sediment deposition by organic rich sediments deposited during oxygen-deficient conditions (ocean anoxic events OAEs). A current model for the...
Resource Type:: Masters Thesis
Full Text:: ........................................................................... 70 Bass River Borehole (ODP Leg 174AX), NJ .......................... 70 ODP Leg 183, Site 1138

Electronic Properties of Passive Films on Carbon Steel Rebar in Simulated Concrete Pore Solutions

Creator:: Williamson, Jon W.
Abstract:: In the highly alkaline environment of concrete, carbon steel rebar is protected against corrosion by a passive oxide/oxyhydroxide film. Understanding the characteristics of this passive film, and how it depassivates, is the key for mitigating problems associated with steel corrosion in concrete. Although a large number of electrochemical and analytical...
Resource Type:: Masters Thesis
Full Text:: and decrease in the model parameters EF, ED2, ED1, ND1, EC, ND2, σ1, σ2, and EV ……………………………...191

Determination of unsaturation-, growth phase-, and growth rate-dependent hydrogen isotopic fractionation in C₃₇ alkenones produced by Emiliania huxleyi

Creator:: Wolhowe, Matthew D.
Abstract:: Recent works have investigated use of the hydrogen isotopic composition of C₃₇ alkenones (δD[subscript K37s]), lipid biomarkers of certain haptophyte microalgae, as an independent paleosalinity proxy. I discuss herein the factors impeding such an application and identify the potential alternative use of δD[subscript K37s] measurements as a proxy for non-thermal,...
Resource Type:: Masters Thesis
Full Text:: ). 5 Ta bl e 1. S el ec te d R es ul ts fr om C ur re nt S tu di es o f α K 37

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Creator:: Piekarz, Arkadiusz M.
Abstract:: Current studies suggest that perfluorinated organic compounds, such as fluorotelomer alcohols (FtOHs) in the troposphere, may be precursors of perfluorocarboxylic acids and perfluorosulfonates in remote regions. Fluorinated organic compounds were investigated in archived extracts collected from remote locations in Okinawa, Japan (HSO) and Mount Bachelor, Oregon (MBO) during the springs...
Resource Type:: Masters Thesis
Full Text:: CHEMICAL, RETENTION TIMES (ON A 30 METER EC-WAX COLUMN), MOLECULAR WEIGHTS, AND IONS MONITORED FOR GC/MS

Journey to the Center of GW170817: Bayesian parameter estimation of outflows from binary neutron star mergers

Creator:: Rodriguez, Isabel J.
Abstract:: The discovery of GW170817 provided the first empirical evidence that merging binary neutron star systems are both progenitors of short gamma-ray bursts, as well as the primary sites of the nucleosynthetic rapid-neutron capture process. Initially detected as gravitational wave (GW) and gamma-ray burst (GRB) triggers, GW170817 was well-localized and follow-up...
Resource Type:: Masters Thesis
Full Text:: (Ec) = 47.90, θj = 1.66, θc = 4.25, log(Γ0) = 3.97, θobs = 24.41. This combination resulted in a log

Urinary potassium in guinea pigs on diets deficient in anti-stiffness factor

Creator:: McIntyre, David Ralph
Resource Type:: Masters Thesis
Full Text:: potassium in the urine in arq 6-hour period 'Was 22.00 a g./ec.; the lQWeat concentration 31 was

Comparison of baits for monitoring the spotted wing Drosophila, Drosophila suzukii

Creator:: Kleiber, Joseph R.
Abstract:: Spotted wing Drosophila (SWD), Drosophila suzukii (Diptera: Drosophilidae), is a pest of small and stone fruits that is widely distributed across much of the United States, Canada, Europe and Asia. Unlike other members of the Drosophilidae that only lay eggs in overripe or rotting fruit, SWD infest ripening and ripe...
Resource Type:: Masters Thesis

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Creator:: Tuladhar, Preeti
Abstract:: Satellite remote sensing is an effective tool for mapping snow covered area. However, complex terrain and heterogeneous land cover, due to vegetation and patchy snow cover, present challenges to snow cover mapping. This research compares two techniques for mapping snow covered area: binary and enhanced fractional snow cover mapping techniques....
Resource Type:: Capstone Project
Full Text:: on the equation (Adam et al., 1986), R F Rc i i c i N = + = ∑ , 1 Ec

Creep studies on "Expanded," "Chukar," and "Drake" aluminum conductors

Creator:: Shen, Yuan-shou
Abstract:: This thesis presents the creep properties and the relations between stress and strain of "Expanded 460KV", "Chukar" and "Drake" conductors. The basic theories of the effect of load, material, and temperature on the conductor are also briefly discussed. The long time creep curve of a conductor appears as a straight...
Resource Type:: Masters Thesis
Full Text:: consisting of one or more layers of concentric-lay stranded Electrical Conductor (EC) grade hard drawn

ScholarsArchive@OSU

An investigation on photoneutron production from medical linear accelerators

Hydrothermal links between ocean plateau formation and global anoxia at the Cenomanian-Turonian boundary

Electronic Properties of Passive Films on Carbon Steel Rebar in Simulated Concrete Pore Solutions

Determination of unsaturation-, growth phase-, and growth rate-dependent hydrogen isotopic fractionation in C₃₇ alkenones produced by Emiliania huxleyi

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Journey to the Center of GW170817: Bayesian parameter estimation of outflows from binary neutron star mergers

Urinary potassium in guinea pigs on diets deficient in anti-stiffness factor

Comparison of baits for monitoring the spotted wing Drosophila, Drosophila suzukii

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Creep studies on "Expanded," "Chukar," and "Drake" aluminum conductors

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