Index Catalog // ScholarsArchive@OSU

Volcanic Eruptions in the Deep Sea

Creator:: Rubin, Kenneth H., Soule, S. Adam, Chadwick, William W., Jr., Fornari, Daniel J., Clague, David A., Embley, Robert W., Baker, Edward T., Perfit, Michael R., Caress, David W., and Dziak, Robert P.
Abstract:: Volcanic eruptions are important events in Earth’s cycle of magma generation and crustal construction. Over durations of hours to years, eruptions produce new deposits of lava and/or fragmentary ejecta, transfer heat and magmatic volatiles from Earth’s interior to the overlying air or seawater, and significantly modify the landscape and perturb...
Resource Type:: Article
Full Text:: Sea B y K e N N e t h h . r u B i N , S . a d a m S O u l e , W i l l i a m W . c h a d W i c

Numbering-Up of Microscale Devices for Megawatt-Scale Supercritical Carbon Dioxide Concentrating Solar Power Receivers

Creator:: Zada, Kyle R., Hyder, Matthew B., Drost, M. Kevin, and Fronk, Brian M.
Abstract:: Concentrated solar power (CSP) plants have the potential to reduce the consumption of nonrenewable resources and greenhouse gas emissions in electricity production. In CSP systems, a field of heliostats focuses solar radiation on a central receiver, and energy is then transferred to a thermal power plant at high temperature. However,...
Resource Type:: Article
Full Text:: ., 130(2), p. 024501. [3] Stine, W., and Geyer, M., 2001, “Power From the Sun” [Online]. Available

A Comparison of Bulk Estuarine Turnover Timescales to Particle Tracking Timescales Using a Model of the Yaquina Bay Estuary

Creator:: Lemagie, Emily P. and Lerczak, James A.
Abstract:: The ability to determine a bulk estuarine turnover timescale that is well defined under realistic conditions is in high demand for estuarine research and management. We compare how turnover timescales vary with tidal and river forcing from idealized forcing scenarios using a three-dimensional circulation model of the Yaquina Bay estuary...
Resource Type:: Article
Full Text:: the geometry of the estuary and coastal region using Rgeo ¼ 1− W πw ffiffiffiffiffiffiffiffiffi P

Selective Laser Melting of H13 Tool Steel for Rapid Tooling

Creator:: Katancik, Michael
Abstract:: The current knowledge on the microstructural evolutions and mechanical properties of selective laser melting (SLM) produced H13 tool steel components is limited. This research is focused on optimization of SLM processing parameters for H13 tool steel and investigation of microstructure and mechanical properties of H13 tool steel components after SLM...
Resource Type:: Honors College Thesis
Full Text:: volumetric energy density (VED) of 760 J/mm3 (152 W laser power, 100 mm/s scanning speed, 40µm hatch

Discrete-Event Simulation of Ground-Based Timber Harvesting Operations

Creator:: She, Ji, Chung, Woodam, and Kim, David
Abstract:: Operational studies are necessary to support production and management decisions of forest industries. A time study (TS) approach is widely used in timber harvesting operations to understand the performance of individual harvesting machines as well as the entire system. However, several limitations of the TS approach include the use of...
Resource Type:: Article
Full Text:: systems (e.g., Arena, Arena 15, Rockwell Automation Technologies, Inc., Milwaukee, WI, USA), AnyLogic

Habitat Associations and Diet Composition of Western Purple Martins in Western Oregon

Creator:: Sherman, Lorelle M.
Abstract:: The western purple martin (Progne subis arboricola) is a species of conservation concern throughout the Pacific Northwest. In western Oregon, the purple martin nests in three major ecosystem types: inland open-water, coastal, and upland forest. The availability of suitable breeding habitat is a major limiting factor for western purple martin...
Resource Type:: Masters Thesis
Full Text:: anecdotal observations cite a population decline in the Pacific Northwest (Rockwell 2018). The eastern

Biological screening of selected Pacific Northwest forest plants using the brine shrimp (Artemia salina) toxicity bioassay

Creator:: Karchesy, Yvette M., Kelsey, Rick G., Constantine, George, and Karchesy, Joseph J.
Abstract:: The brine shrimp (Artemia salina) bioassay was used to screen 211 methanol extracts from 128 species of Pacific Northwest plants in search of general cytotoxic activity. Strong toxicity (LC₅₀ < 100 µg/ml) was found for 17 extracts from 13 species, with highest activity observed for Angelica arguta roots at <10...
Resource Type:: Article
Full Text:: parts 808 403–2800 Antennaria geyeri Pussy toes (Geyer) Aerial parts >1000 Anthemis cotula Dog

Direct Bonding of Aluminum-Copper Metals through High-Pressure Torsion Processing

Creator:: Han, Jae-Kyung, Han, Dae Kuen, Liang, Guang Yuan, Jang, Jae-Il, Langdon, Terence G., and Kawasaki, Megumi
Abstract:: High-pressure torsion (HPT) is used to investigate the formation of a new metal system by the direct bonding of separate disks of Al and Cu by processing at room temperature under a compressive pressure of 6.0 GPa and with increasing numbers of HPT turns up to 60. A detailed examination...
Resource Type:: Article
Full Text:: –0.60Mn, 0.04 P, 0.04 S (wt%) was used as the counter material with a Rockwell HRC hardness of 58–60

Mechanistic analysis of the wave-current interaction in the plume region of a partially mixed tidal inlet

Creator:: Moghimi, Saeed, Özkan-Haller, H. Tuba, Akan, Cigdem, and Jurisa, Joseph T.
Abstract:: In this research, a three-dimensional coupled wave-circulation model, including meteorological forcing, freshwater inflow and time varying open boundary conditions, for New River Inlet is validated. A mechanistic approach is taken to investigate how various wave-current interaction mechanisms affect the nearshore circulation, plume expansion and surface wave field in the plume...
Resource Type:: Article
Full Text:: .∇⊥)u + w ∂u ∂z + fẑ × u +∇⊥ϕ− F−D + ∂ ∂z ( úẃ − ν ∂u ∂z ) = ∇⊥K + J + Fw (1) ∂ϕ ∂z + gρ

Farm Direct at five years: An early assessment of Oregon's farm-focused cottage food law

Creator:: Gwin, Lauren, Brekken, Christy Anderson, and Trant, Lindsay
Abstract:: In 2011, the Oregon legislature passed the Farm Direct Marketing Law (FDML), which took effect in 2012. The law clarified licensing and food safety requirements for direct-to-consumer sales at farmers markets, farm stands, and similar venues. It also included a "cottage food" provision allowing farms to make and sell certain...
Resource Type:: Article
Full Text:: produce farmers, food manufacturers, and related supply chain businesses (Boys, Ollinger, & Geyer, 2015

ScholarsArchive@OSU

Volcanic Eruptions in the Deep Sea

Numbering-Up of Microscale Devices for Megawatt-Scale Supercritical Carbon Dioxide Concentrating Solar Power Receivers

A Comparison of Bulk Estuarine Turnover Timescales to Particle Tracking Timescales Using a Model of the Yaquina Bay Estuary

Selective Laser Melting of H13 Tool Steel for Rapid Tooling

Discrete-Event Simulation of Ground-Based Timber Harvesting Operations

Habitat Associations and Diet Composition of Western Purple Martins in Western Oregon

Biological screening of selected Pacific Northwest forest plants using the brine shrimp (Artemia salina) toxicity bioassay

Direct Bonding of Aluminum-Copper Metals through High-Pressure Torsion Processing

Mechanistic analysis of the wave-current interaction in the plume region of a partially mixed tidal inlet

Farm Direct at five years: An early assessment of Oregon's farm-focused cottage food law

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