Browsing Auburn Theses and Dissertations by Author "Overfelt, Ruel A."

Now showing items 1-9 of 9

Effects of Microstructure on Fracture Behavior of Hydrogenated Notched 4340 Steel: A Quantitative Study

Sk, Mobbassar (2014-04-28)

Hydrogen based fuel has been identified as a promising alternative to fossil fuel to reduce the emission of greenhouse gases and to enable sustainable energy supplies worldwide. In spite of such promising applications of ...

Evaluation and Analysis of Commercially Available Electrochemical Carbon Monoxide Sensors for Aircraft Applications

Overfelt, Ruel A.; Fergus, Jeffrey; Prorok, Bart (2012-05-18)

Commercial airline flight in the United States of America is under the oversight of the Federal Aviation Administration (FAA) which has set standards for the amount of harmful or unpleasant compounds onboard aircraft to ...

Measuring, Evaluating, and Describing Pile-Up and Sink-In During Nanoindentation of Thin Films on Substrates

Sullivan, MariAnne (2015-12-10)

Nanoindentation is a valuable tool for extracting material properties such as elastic modulus and hardness at the nanoscale. Knowing material properties at this scale enhances the use of thin films in protective coatings ...

Ozone Removal at Microsecond Contact Time using Microfibrous Entrapped Catalysts

Gu, Qiang (2015-04-29)

Microfibrous Entrapped Catalysts (MFEC) manufactured from 8μm diameter nickel fibers were engineered into pleated heterogeneous catalytic reactors to improve catalytic performance from conventional packed bed and monolith ...

PDMS Deformation Effects during Start-up Flow in Microchannels of Different Depths and Containing Various Obstacles

Kang, Chan-Kyu (2012-12-13)

New experimental data for the microfluidic flow of a water-based liquid at very low Reynolds numbers (10-4 to 10-3) are provided for an optically transparent polydimethylsiloxane (PDMS) microfluidic chip with rectangular ...

Steady State and Transient Response Characteristics of Commercial Carbon Monoxide Sensors

Buck, Amy (2014-01-14)

Suggestions have been made to include sensor platforms that are capable of detecting potential bleed air contamination events on commercial airliners to protect the health and safety of aircraft passengers and crew. ...

Steady State and Transient Response Characteristics of Commercial Non-Dispersive Infrared Carbon Dioxide Sensors

Roberts, Matthew (2014-03-31)

Non-dispersive infrared CO2 sensors are well established and are commonly used to provide demand control ventilation for commercial buildings. The aviation industry has shown potential interest in adapting these sensors ...

Transport Modeling and Response Characteristics of Commercial Catalytic Bead Sensors

Brooks, Bethany (2015-05-05)

Concerns have been raised about contamination events in the bleed air supply of commercial airplanes. Reliable sensors to detect the presence of gases due to the contamination are therefore being considered. Catalytic bead ...

Understanding Effects of Tapering Cantilevered Piezoelectric Bimorphs for Energy Harvesting from Vibrations

Siddiqui, Naved (2014-12-09)

Piezoelectric energy harvesting from vibrations is a field that has gathered much attention over the past decade. The purpose of this application is to realize ambient sources of kinetic energy such as vibrations, and turn ...