Jeff Young and Dr. Larry Howell, Mechanical Engineering Much research is being done around the world in the field of micro-electro-mechanical systems (MEMS). MEMS are devices such as linkages, actuators, gears and motors built on a scale of microns. MEMS have many potential applications in medical science, electronics and other areas where smaller, more intricate, […]
Stress-Induced Development of Human Vocal Fold Morphology
Kendall Teichert and Dr. Scott Thomson, Mechanical Engineering Introduction Ramig and Verdolini state: “it has been estimated that 3% to 9% of the total population in the United States has a voice disorder.” One way to better understand voice disorders is to learn about the development of the structures and properties, or morphology, they affect. […]
Charpy Impact Study of Friction Stir Welded X-65 Steel
David Segrera and Dr. Tracy Nelson, Mechanical Engineering Industrial need for a high-strength, ferritic steel exhibiting desirable weldability, malleability, and corrosion resistance properties has led to the development of high strength, low alloy (HSLA) X-65 Steel. This class of steel uses small amounts of alloying material and very little carbon to make it more corrosion […]
Frequency Response of Skin Vibration on the Head and Neck during Speech
Ben Pence and Dr. Scott Thomson, Mechanical Engineering During speech, the vocal folds vibrate resulting in audible sounds. In addition to being transmitted through the vocal tract these vibrations are also transmitted through several layers of various types of tissue throughout the head and neck, resulting in small, but measurable, skin surface vibration. Contact microphones […]
A Self-Powered Wireless Microphone
Joel Neff and Dr. Brian D. Jensen, Mechanical Engineering The idea for our project was to use vibrations from the human vocal folds to harvest energy during speech. This energy would then be used to power a wireless throat microphone, which would acquire a speech signal and then transmit it to a fixed receiver for […]
Improving Micro Air Vehicles
Andrew Hosford and Dr. Deryl Synder, Mechanical Engineering Recently, there has been increased interest in the development of micro air vehicles (MAVs) (Figure 1) to perform reconnaissance, surveillance, and other small operations best suited for air vehicles with maximum dimensions of six inches. In order to develop successful air vehicles, it is imperative to have […]
Scar Effects on Vocal Fold Vibration
Todd Groesbeck and Dr. Scott Thomson, Mechanical Engineering Introduction The influence of scarring on the vocal folds is of great interest to the speech community. Surgeons, educators, and vocalists all have interest in understanding what causes vocal fold damage, and how such damage may be repaired. Frequently, repair requires surgery, and the surgery may result […]
Friction Stir Welding of HSLA Steel
Sterling Anderson and Dr. Tracy Nelson, Mechanical Engineering INTRODUCTION In response to industrial need for a high-strength, weldable, malleable, and corrosion resistant steel the United States Navy developed a high-strength, low-alloy steel known as HSLA 65. Because of its superior mechanical properties and low cost, HSLA 65 is being increasingly used in pipeline, naval, and […]
VISUAL BASED REVERSE ENGINEERING
C. Porter Bassett and Dr. C. Greg Jensen, Mechanical Engineering Reverse engineering, or the process of taking an implemented idea and taking it back to the design stage, has many applications in many different types of engineering. One common application of reverse engineering is to take a manufactured part, measure its dimensions and shape, and […]
Ultra-Small Scale Hydroelectric as a Supplemental Energy Source
Andrew Thompson and Dr. Daniel Maynes, Department of Mechanical Engineering For centuries water has been used as a source of power; from the middle ages where waterwheels were used for simple mechanical tasks to the 21st century where large hydroelectric power plants supply megawatts of electricity to the power grid. In recent decades developing and […]
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