Environmental Science and Engineering – 2nd Edn.

Er. P. Yugananth  is now working as Assistant Divisional Engineer in Highways Department, Government of Tamilnadu. He obtained his Bachelor's degree in 'Civil Engineering' and Master's degree in 'Environmental Engineering' from Bharathiar University, Coimbatore in First Class with Distinction. In addition to his experience in teaching, he has about 18 years of experience in planning, designing and construction of various kinds of roads, bridges and highway structures. He has published many papers in National & International Journals. His areas of interest are Engineering Mechanics, Strength of Materials, Environmental Science and Engineering.

Dr. R. Kumaravelan is a Professor and Head of the Department of Mechanical Engineering, Velalar College of Engineering and Technology, Erode. He obtained his Bachelor's degree in 'Mechanical Engineering' and Master's degree in 'Engineering Design' from Bharathiar University, Coimbatore. He was the Gold Medalist in his PG studies. He completed his Doctoral degree from Anna University, Chennai in the area of mechanics of Composite materials. He has about 20 years of experience in teaching and research. He has published 10 papers in International Journals and presented more than 50 papers in National & International Conferences. His subjects of interest are Engineering Mechanics, Strength of Materials, Machine Design, and Finite Element Analysis.