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De-Icing In Photovoltaic Devices By Ultrasonic Waves And Surface Engineering, Ryan Matthew Fillion
De-Icing In Photovoltaic Devices By Ultrasonic Waves And Surface Engineering, Ryan Matthew Fillion
Electronic Theses and Dissertations
A review of the literature shows there is much potential for the decrease and prevention of ice accumulation and adhesion on many materials including renewable energy devices with the use of well-designed hydrophobic coatings. It has also been shown that the addition of ultrasonic vibration can dramatically decrease or break the adhesion of ice altogether. A combination of hydrophobic coatings and ultrasonic vibration could result in a system capable of delaminating accumulated ice efficiently and remotely, which could replace outdated and expensive de-icing alternatives. Currently, however, there is not a standard method for measuring the ice adhesion of various materials …
The Perceived Effectiveness Of Mixed Reality Experiences In A Master Of Arts In Teaching (Mat) Program For Science, Technology, Engineering, And Mathematics Degreed Individuals, Chana Speir
Electronic Theses and Dissertations
The purpose of this study was to examine the perceived effectiveness of mixed reality experiences on resident teachers who successfully completed an undergraduate Science, Technology, Engineering, or Mathematics (STEM) degree and were enrolled in a Master of Arts in Teaching (MAT) degree program as part of RTP3 at a large research university in Orlando, Florida. The population for this study consisted of those selected to be in the RTP3, which included being in the Masters in the Art of Teaching (MAT) and becoming a middle or high school science, mathematics, or engineering teacher. The resident teachers experienced mixed reality as …
Nanoarchitectured Energy Storage Devices, Zenan Yu
Nanoarchitectured Energy Storage Devices, Zenan Yu
Electronic Theses and Dissertations
Supercapacitors, the devices that connect the gap between batteries and conventional capacitors, have recently attracted significant attention due to their high specific capacitance, substantially enhanced power and energy densities, and extraordinary cycle life. In order to realize even better performance with supercapacitors, rejuvenated effort towards developing nanostructured electrodes is necessary. In this dissertation, several strategic directions of nanoarchitecturing the electrodes to enhance the performance of supercapacitors are investigated. An introduction and background of supercapacitors, which includes motivation, classification and working principles, recent nanostructured electrode materials studies, and devices fabrication, are initially presented. A facile method, called Spin-on Nanoprinting (SNAP), to …