Editorial Preface

EDITORIAL Walailak Journal of Science and Technology In this the third volume of the Walailak Journal of Science and Technology we wish to sincerely thank Professor Dr. Winai Pralomkarn for his extraordinary efforts as Editor in the past few years in establishing the Journal. We would also like to express our gratitude to Dr. Buhnnum Kyokong, Dr. Pitiwong Tantichodok and Dr. Padungsak Suksa-Ard for their contribution as associate editors for the Journal. Following these retirements we welcome Assistant Professor Dr. Anuchit Chinajariyawong and Dr. Monthon Lertcanawanichachul as new associate editors for the Journal. We look forward to working with them and together improving the Journal. Finally, we welcome Assistant Professor Dr. David J. Harding as the new Editor of the Journal. In this time of change we also ask authors to take a look at our new and improved ‘Notes for Authors’ section at the end of the journal or on our website at: http://wjst.wu.ac.th. We look forward to servicing our authors with the same degree of dedication and hope that you will choose the Walailak Journal of Science and Technology for publishing your research results. Editorial Board, Walailak Journal of Science and Technology