I would like to address special thanks to the people below for their help and support during the preparation of this book. First, I am thankful to my wife and three children for their patience and continuous support while writing this book. I am very thankful to Dr. Hao Ling of the University of Texas at Austin for being a valuable source of knowledge, ideas, and also inspiration. He has been a great advisor since I met him.
I would like to express my sincere thanks to my former graduate students Betl Yılmaz, Deniz Üstn, Enes Yiit, evket Demirci, and Özkan Kırık, who carried out some of the research detailed in this book.
Last but not least, I would like to show my special thanks to Dr. Kai Chang for inviting me to write this book. Without his kind offer, this study would not have been possible.