Hongfei Liu

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Phillip Gnassi Bradford ALL RIGHTS RESERVED iii DEDICATION To my family and friends. iv Acknowledgements On to thanking those who had much innuence on me and therefore on this work. Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has." |Margaret Mead First, I sincerely thank(More)
Typical morphology substrates can improve the efficiency of surface-enhanced Raman scattering; the need for SERS substrates of controlled morphology requires an extensive study. In this paper, one-dimensional ZnS:Al nanostructures with the width of approximately 300 nm and the length of tens um, and micro-scale structures with the width of several um and(More)
Broadcasting communications is critically important in vehicular ad hoc networks. Many safety applications need safety warning messages to be broadcast to all vehicles present in an area. Design of a broadcasting protocol for vehicular ad hoc networks is an interesting problem because of challenges posed by broadcasting traffic, high throughput, high(More)
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