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Acknowledgments
The authors are always thankful to the Almighty for their perseverance and achieve-
ments. The authors are grateful to L. Gopalakrishnan, managing trustee, PSG Institutions,
and Dr. R. Rudramoorthy, principal, PSG College of Technology, Coimbatore, India, for their
wholehearted cooperation and encouragement in this successful endeavor. The authors
extend their heartfelt thanks to Dr. A. Soundarrajan, associate professor, Department of
Information Technology, PSG College of Technology, Coimbatore and Dr. Maheswaran,
Electrical Department, Tamil Nadu Newsprint and Papers Limited, Karur, for their sup-
port in completing this project successfully.
Dr. Sumathi owes much to her daughter, S. Priyanka, who has helped a lot in monopoliz-
ing her time on book work and substantially realized the responsibility. She feels happy
and proud for the steel frame support rendered by her husband, Sai Vadivel. Dr. Sumathi
extends her whole-hearted thanks to her parents, for their help with family commitments
and their constant support. She is greatly thankful to her brother M. S. Karthikeyan, who
has always been a “stimulator” for her progress. She is pertinent in thanking her parents-
in-law for their great moral support.
Dr. L. Ashok Kumar acknowledges those people who helped him in completing this
book. This book would not have been possible without the help of his students, depart-
ment staff, and institute and especially his project staff. He sincerely thanks the man-
agement and principal, guru, and mentor Dr. Rudramoorthy for providing a wonderful
platform to perform. He is thankful to all his students, who are doing their project and
research work with me. But the writing of this book was mainly possible because of the
support of his family members, parents, and sisters. Most importantly, he is very grateful
to his wife, Y. Uma Maheswari, for her constant support during the writing, without her
this work would not have been possible. He expresses his special gratitude to his daughter
A. K. Sangamithra. Her smiling face and support have helped immensely in overcoming
backlogs and completing this book. He apologizes to her for taking a signicant amount
of his playtime with her to write this book.
Dr. Surekha P. thanks the Almighty for giving her the courage, energy, and time to
complete this book in spite of the busy academic career. The author extends her thanks
to her daughter, S. Saisusritha, who has been keeping her active with her cute little smiles
and naughtiness. She expresses her sincere gratitude to her husband A. Srinivasan and
parents, who shouldered a lot of her responsibilities during the months she spent writing
this book. She thanks her brother, Siva Paneerselvam, who has always been helping her
during hardships.
The authors thank all their friends and colleagues who have been with them in all their
endeavors with their excellent, unforgettable help and assistance in the successful execu-
tion of this work.
© 2016 by Taylor & Francis Group, LLC