Index Catalog // ScholarsArchive@OSU

Effect of lateral force on passenger comfort during a mechanically assisteddependent transfer

Creator:: Mast, Jonathan J.
Abstract:: Air travel presents several problems for passengers with disabilities. One in particular is how they get from their wheelchair and to an aircraft seat. The commonly used manual transfer method is hazardous to the assistants and the passenger. There are other alternatives, but they have plenty of room for improvement....
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ________________________________________________ Joseph R. Zaworski Air

Applying hierarchical and adaptive control to coordinating simple robots

Creator:: Knudson, Matthew D.
Abstract:: Coordinating multiple robots to achieve a complex task requires solving two distinct control problems: the high-level control problem of ensuring that each robot aims to perform a useful task (e.g., coordination) and the low-level control problem of ensuring that each robot actually performs the correct actions to achieve its task...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Matthew D. Knudson for the

Model predictive control for sagittal plane locomotion

Creator:: Maunder, Cary R.
Abstract:: A distinct characteristic of legged locomotion is its periodic nature. This periodic motion, in the form of a periodic orbit, has been the target of many walking and running control strategies. The spring loaded inverted pendulum (SLIP) has become a popular model of sagittal plane locomotion, exhibiting behavior characteristic of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Cary R. Maunder for the

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
Full Text:: 1 AN ABSTRACT OF THE THESIS OF Keith R. Davis for

Effects of a thin, flexible nozzle on droplet formation and impingement

Creator:: Hawke, Shane R.
Abstract:: The droplet formation process in the vicinity of the nozzle exit and the behavior of a spreading droplet during impingement on a smooth glass surface were studied. Two nozzle geometries were tested. The first case was a stiff stainless steel nozzle plate 0.787 mm thick. The second case was a...
Resource Type:: Masters Thesis
Full Text:: 64 r P rw r R D R ⎛ ⎞⎛ ⎞= −⎜ ⎜ ⎟⎜ ⎝ ⎠⎝ ⎠ ⎟⎟ (1) 19 ) This equation is valid for

Characterization of the near-field flow structure of an acoustically self-excited jet in a large enclosure using particle image velocimetry (PIV)

Creator:: Tobias, Jason A.
Abstract:: An experimental study of the near-field flow structure produced by an incompressible turbulent Acoustically Self-Excited Jet (ASEJ) in a large enclosure using Particle Image Velocimetry (PIV) is presented. The salient feature of this jet is that it provides an increase in near-field mixing and turbulence without additional external power input....
Resource Type:: Masters Thesis
Full Text:: wave feedback from large-scale shear vorticesPipe Diameter, D Figure 1.1: Schematic of the

Mechanical characterization of a simple gel in a prototype device that models a degenerative intervertebral disc

Creator:: Cenar, Yannick
Abstract:: A large part of low-back pain occurrences are due to disc herniation or prolapse of the nucleus pulposus. An alternative technique to existing treatments of low back pain includes nucleus pulposus replacement by an artificial material to relieve pain and restore normal function. To date, there has been a deficiency...
Resource Type:: Masters Thesis

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Creator:: Aljutaili, Dhari S.
Abstract:: Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
Resource Type:: Masters Thesis
Full Text:: cracking. Linear elastic beam analysis, 2-D and 3-D finite element analyses, and fatigue analysis were

Simulation-based micro-scale system modeling and design optimization of a portable absorption cycle cooling system (tactical energy system) under uncertainty

Creator:: Shielee, David
Abstract:: Product design is often driven by customer needs and desires. In this case the customer is the US military, and the desire is to have a cooling unit small enough and light enough to incorporate into hazard suits for use in desert combat. The Micro technology-based Energy and Chemical Systems...
Resource Type:: Masters Thesis
Full Text:: design space, and then a D-Optimal fractional factorial design is selected using Matlab to define a

Design and preliminary characterization of thermally-actuated pumps utilizing Marangoni and Leidenfrost effects

Creator:: Sedler, Stephen Joseph
Abstract:: Design and preliminarily characterization of two thermally-actuated pumps is presented in this thesis. The unique feature of both pumps is the presence of periodic asymmetrical structures on the channel walls. Two heat transfer effects are used with surface asymmetry to generate forces that drive the fluid in a preferential direction...
Resource Type:: Honors College Thesis

ScholarsArchive@OSU

Effect of lateral force on passenger comfort during a mechanically assisteddependent transfer

Applying hierarchical and adaptive control to coordinating simple robots

Model predictive control for sagittal plane locomotion

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

Effects of a thin, flexible nozzle on droplet formation and impingement

Characterization of the near-field flow structure of an acoustically self-excited jet in a large enclosure using particle image velocimetry (PIV)

Mechanical characterization of a simple gel in a prototype device that models a degenerative intervertebral disc

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Simulation-based micro-scale system modeling and design optimization of a portable absorption cycle cooling system (tactical energy system) under uncertainty

Design and preliminary characterization of thermally-actuated pumps utilizing Marangoni and Leidenfrost effects

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