Acknowledgements
I would like to thank everyone who supported and guided me throughout the
journey of completing this dissertation.
First and foremost, I want to express my deepest gratitude to my supervisor,
Dr. Minas Dasygenis, for his constant support, essential counsel and constructive
input throughout this research work. His expertise, encouragement and patience
have been highly important in shaping this research.
I am also thankful to the members of my doctoral advisory committee, Dr.
Konstantinos Siozios and Dr. Nikolaos Konofaos for their insightful comments,
recommendations and expertise, which have improved the overall quality of this
thesis.
I would also like to extend my appreciation to Dr. Antonios Lalas and Dr.
Konstantinos Votis, for supporting this research, enriching its overall scope and
impact.
Finally, I am deeply grateful to my family for their forever faith, encour-
agement and understanding; they have been a constant source of strength and
inspiration.
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