Index Catalog // ScholarsArchive@OSU

Identifying habitat factors for canary rockfish (Sebastes pinniger) off Washington and Oregon using environmental data and trawl logbooks

Creator:: Vestfals, Cathleen D.
Abstract:: If fisheries managers are to effectively manage commercially exploited fish populations, a basic understanding of the factors that influence fish distribution and abundance is required. In 2005, efforts to identify Essential Fish Habitat (EFH) for the 82 groundfish species managed by the Pacific Fishery Management Council along the West Coast...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ David B. Sampson If fisheries managers are to effectively manage commercially exploited fish

Spatio – temporal temperature variations during droplet impingement evaporation : effects of nanofluid and nano-structured surface

Creator:: Graber, Christof
Abstract:: Droplet and spray impingement cooling are typically used in high heat flux thermal management. In this thesis, droplet impingement and evaporation heat transfer characteristics are determined from measured spatially- and temporally- varying fluid and surface temperatures. Unique to this study is the documentation of the effects of using a nanofluid...
Resource Type:: Masters Thesis
Full Text:: Narayanan, and Dr. James Liburdy for their continual support and assistance in completing this research. A

RANS and LES predictions of turbulent scalar transport in dead zones of natural streams

Creator:: Drost, Kevin J.
Abstract:: Natural stream systems contain a variety of ﬂow geometries which contain ﬂow separation, turbulent shear layers, and recirculation zones. This work focuses on streams with dead zones. Characterized by slower ﬂow and recirculation, dead zones are naturally occurring cutouts in stream banks. These dead zones play an important role in...
Resource Type:: Masters Thesis
Full Text:: APPENDICES Page A k-ω Equations 79 B Uijttewaal Grids 81 C Weitbrecht Grids 82 D Single Grid 83 E LES

Proportional integral derivative control of an oil-heated fractal-like branching microchannel desorber

Creator:: Davis, Keith R.
Abstract:: A PID controller was designed to control the performance of an oil-heated fractal-like branching microchannel desorber for use in an ammonia-absorption refrigeration system. Both the amount and concentration of ammonia refrigerant generated at the desorber can be controlled by choosing the rectified circulation ratio as the controlled variable in a...
Resource Type:: Masters Thesis

Performance characterization of an integrated microscale hydrogen combustor recuperator and oil heat exchanger

Creator:: Haley, David B. (David Brien)
Abstract:: Experiments on a novel, microscale hydrogen combustor heat exchanger (µCHX) are presented in this thesis. The µCHX has been designed to efficiently transfer thermal energy to a heat transfer fluid for use in desorption of hydrogen from a metal hydride storage system of a hydrogen-powered fuel cell vehicle. The experimental...
Resource Type:: Masters Thesis
Full Text:: David B. Haley for the degree of Master of Science in Mechanical Engineering presented on June 3, 2011

Contribution of cold seep barite to the barium geochemical budget of a marginal basin

Creator:: McQuay, Erica L.
Abstract:: Large barite (BaSO4) structures mark cold seeps in the southern San Clemente Basin. Barium flux to San Clemente sediments is two to three times greater than fluxes measured in surrounding California Borderland basins. Analyses of sediment trap material, water column samples, sediments and pore water indicate that expected bariumbearing mineral...
Resource Type:: Masters Thesis
Full Text:: depth from 11 Dec. 2003 through 17 Dec. 2003. (B) Current direction (degrees, 0 = due north) for the

The leading edge of a tropical instability wave : interpretation as a gravity current

Creator:: McHugh, Elizabeth Helen
Abstract:: A sharp temperature front, oriented along the south-west corner of the leading edge of a Tropical Instability Wave (TIW) warm trough, was encountered at 0°N, 140°W on November 2, 2008 and detected by a 0.45°C increase in SST that occurred over 7 s. The distinct SST signal was observed at...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________________ James N. Moum A sharp temperature front, oriented along the south-west corner of the

Investigating climate feedbacks across forcing magnitudes and time scales using the radiative kernel technique

Creator:: Jonko, Alexandra
Abstract:: Radiative feedbacks associated with changes in water vapor, temperature, surface albedo and clouds remain a major source of uncertainty in our understanding of climate's response to anthropogenic forcing. In this dissertation climate model data is used to investigate variations in feedbacks that result from changing CO₂ forcing and the time...
Resource Type:: Dissertation
Full Text:: present: Eric Skyllingstad, Andreas Schmittner, Jim Coakley, James Liburdy, Dudley Chelton and Jeffrey

Microscale thermal management using membrane vapor extraction

Creator:: Apreotesi, Mario A.
Abstract:: With the miniaturization of microelectronics and increase of processor speeds in the last few decades, thermal management is drastically affecting overall packaging and system capabilities. Due to the special needs introduced, research focusing on microscale cooling has increased. This study combines the positive characteristics of single- and two-phase flows in...
Resource Type:: Honors College Thesis
Full Text:: James Liburdy, representing Mechanical Engineering

The study of cold leg thermal stratification in APEX-CE

Creator:: Antoine, Stephanie Y. L. Antoine
Abstract:: This research presents an analysis of thermal stratification in the reactor cold leg of the Advanced Plant Experiment-Combustion Engineering (APEX-CE). This phenomenon may be a precursor leading to a Pressurized Thermal Shock (PTS) event in a nuclear power plant. This work was performed in support of the U.S. Nuclear Regulatory...
Resource Type:: Masters Thesis
Full Text:: . (a) Plan. (b) Side View ......................................... 24 2.9 Flow of Multiple Layers. (a

ScholarsArchive@OSU

Identifying habitat factors for canary rockfish (Sebastes pinniger) off Washington and Oregon using environmental data and trawl logbooks

Spatio – temporal temperature variations during droplet impingement evaporation : effects of nanofluid and nano-structured surface

RANS and LES predictions of turbulent scalar transport in dead zones of natural streams

Proportional integral derivative control of an oil-heated fractal-like branching microchannel desorber

Performance characterization of an integrated microscale hydrogen combustor recuperator and oil heat exchanger

Contribution of cold seep barite to the barium geochemical budget of a marginal basin

The leading edge of a tropical instability wave : interpretation as a gravity current

Investigating climate feedbacks across forcing magnitudes and time scales using the radiative kernel technique

Microscale thermal management using membrane vapor extraction

The study of cold leg thermal stratification in APEX-CE

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