Index Catalog // ScholarsArchive@OSU

Comparison of the Accuracy and Applicability of Forebody Wake Effect Models for Parachute System Design

Creator:: Kemling, Gabriel H. and Blunck, David L.
Abstract:: The forebody wake effect (FWE) is important to consider when designing parachute systems because it can affect parachute performance. Parachutes work by altering the aerodynamic properties of an attached forebody to control a descent. The FWE can reduce parachute drag, causing the system to descend faster than desired. This drag...
Resource Type:: Research Paper
Full Text:: Gabriel H. Kemling1 and David L. Blunck2 Oregon State University, Corvallis, Oregon, 97330, United States

Temperature Evolution of Nonreacting Spark Kernels at Sub-Atmospheric Pressures

Creator:: Caplan, Daniel L.
Abstract:: In the event of a mid-flight flameout of a gas turbine engine, reignition is paramount to occupant safety. Ignition at high altitude can be challenging, due in part to the potentially lower ambient pressures. An understanding of the effects of sub-atmospheric pressures on the temperature evolution of spark kernels is...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________ David L. Blunck In the event of a mid-flight flameout of a gas turbine engine

Effects of Facial Tattoos on Perceptions of Facial Trustworthiness

Creator:: Landrus, Bryn E.
Abstract:: Background: Individuals rapidly infer character traits and behaviors through the process of facial perception. Perceptions of trustworthiness, accurate or not, completed by authorities in the criminal justice system may have implications for individuals suspected of crimes, including harsher or longer sentencing decisions. Objective: The present study concerned how the presence...
Resource Type:: Honors College Thesis
Full Text:: . Abstract approved:_____________________________________________________ David Kerr Background

An Analysis of Driver's Visual Attention When Exposed to Roadside Drone Operations

Creator:: Sova, Alden
Abstract:: Drones are being used increasingly in the transportation sector for roadside applications such as surveying, structural inspection, and traffic monitoring, which raises distraction concerns for drivers. This study examines the visual attention of a group of Oregon drivers to determine drones’ potential as distracting roadside elements. Eye tracking data was...
Resource Type:: Honors College Thesis
Full Text:: approved:_____________________________________________________ David Hurwitz Drones are being

Pillaging Bloodwood: An Exploratory Examination of Illegal Deforestation in Guinea-Bissau Through Forest Disturbance Algorithms and Unsupervised Clustering Techniques

Creator:: Walters, Alexander E.
Abstract:: Environmental crime around the world, such as trafficking in illegal timber, is directly related to political instability. Traffickers exploit weak, fragile, and chaotic political circumstances to illegally extract high-value commodities, challenging the extent to which conservation goals are achievable in resource rich developing countries. Rosewood is the largest traded endangered...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________________ David J. Wrathall Environmental crime around the world, such as trafficking in

Application of Coupled Oscillator Model to Terahertz and Optical Control of Plasmon Induced Opacity in Coupled Metamaterials

Creator:: Sprague, Milo X.
Abstract:: Terahertz (THz) frequencies of the electromagnetic spectrum have been underutilized when compared to neighboring microwave and infrared frequencies, largely due to the difficulties controlling and detecting these fields. In a step toward gaining control over THz frequencies, my advisor Dr. Yun-Shik Lee’s group experimentally demonstrated optical-pulse THz-control over a plasmonic...
Resource Type:: Undergraduate Thesis
Full Text:: ………………………………………………………….Page 10 II-1. Coupled Harmonic Oscillator Examples………….………………………………………….. Page 12 II-2. Model 𝛤-L

Sound and Vibration Analysis of Alternative Rumble Strips

Creator:: Horne, Dylan Ross
Abstract:: Roadway departure crashes accounted for 18,275 fatal crashes in 2017 across the United States (Jones et al. 2017). Rumble strips (RS) provide audible and haptic interior alert when a vehicle is departing the roadway reducing run-off-the road crashes. Although inexpensive to install, and easy to maintain, RS are not installed...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ David S. Hurwitz Roadway departure crashes accounted for 18,275 fatal crashes in 2017

Greater sage-grouse vital rates after wildfire

Creator:: Foster, Lee J., Dugger, Katie M., Hagen, Christian A., and Budeau, David A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) have been subject to long-term and continuing declines in population and habitat since European settlement of western North America. Increased wildfire activity constitutes a primary threat to the species in western portions of their range, with documented declines in wildfire-affected populations. Following a 187,000-ha wildfire in...
Resource Type:: Article
Full Text:: Article Greater Sage-Grouse Vital Rates After Wildfire LEE J. FOSTER,1,2 Oregon Cooperative Fish and

Trade-offs in ecosystem impacts from nanomaterial versus organic chemical ultraviolet filters in sunscreens

Creator:: Hanigan, David, Truong, Lisa, Schoepf, Jared, Nosaka, Takayuki, Mulchandani, Anjali, Tanguay, Robert L., and Westerhoff, Paul
Abstract:: Both nanoparticulate (nZnO and nTiO(2)) and organic chemical ultraviolet (UV) filters are active ingredients in sunscreen and protect against skin cancer, but limited research exists on the environmental effects of sunscreen release into aquatic systems. To examine the trade-offs of incorporating nano particles (NPs) into sunscreens over the past two...
Resource Type:: Article
Full Text:: - mental concentrations would be in the low 10s of mg/L (David Holbrook et al., 2013; Gondikas et al., 2014

Early adulthood: A developmental perspective on suicide prevention and intervention

Creator:: Kerr, David C. R.
Abstract:: Early adulthood is a time of transition when large segments of the population embrace new roles and show decreases in behaviors and problems thought to underlie suicide risk. Still, other segments show emergent or worsening psychopathology per-haps exacerbated by age-related disconnection from prior relational and institutional supports. Suicide prevention efforts...
Resource Type:: Article
Full Text:: Suicide Prevention and Intervention David C. R. Kerr, Ph.D. Associate Professor

ScholarsArchive@OSU

Comparison of the Accuracy and Applicability of Forebody Wake Effect Models for Parachute System Design

Temperature Evolution of Nonreacting Spark Kernels at Sub-Atmospheric Pressures

Effects of Facial Tattoos on Perceptions of Facial Trustworthiness

An Analysis of Driver's Visual Attention When Exposed to Roadside Drone Operations

Pillaging Bloodwood: An Exploratory Examination of Illegal Deforestation in Guinea-Bissau Through Forest Disturbance Algorithms and Unsupervised Clustering Techniques

Application of Coupled Oscillator Model to Terahertz and Optical Control of Plasmon Induced Opacity in Coupled Metamaterials

Sound and Vibration Analysis of Alternative Rumble Strips

Greater sage-grouse vital rates after wildfire

Trade-offs in ecosystem impacts from nanomaterial versus organic chemical ultraviolet filters in sunscreens

Early adulthood: A developmental perspective on suicide prevention and intervention

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search