PROCEEDINGS 10 TH INTERNATIONAL RESEARCH CONFERENCE i GENERAL SIR JOHN KOTELAWALA DEFENCE UNIVERSITY ISBN number: 978-955-0301-41-6 General Sir John Kotelawala Defence University All rights reserved Tis book contains the proceedings inclusive of a peer reviewed section of papers presented at the 10 th International Research Conference 2017 of General Sir John Kotelawala Defence, University Ratmalana held on 3 rd and 4 th August 2017. No part of this Publication may be reproduced stored in a retrieval system or transmitted in any form or by any means including electronic, electrostatic, magnetic tape, mechanical, photocopying, recording or otherwise without prior permission in writing of the publisher. Te contents published in this book do not refect or imply the opinion of General Sir John Kotelawala Defence University or any other agency of the Ministry of Defence of the Government of Sri Lanka. Tey refect and imply the opinions of the individual authors and speakers. EDITOR IN CHIEF Dr KMG Prasanna Premadasa EDITORS Mr WLPK Wijesinghe Ms AMTN Adikari ISBN number: 978-955-0301-41-6 Published by General Sir John Kotelawala Defence University Ratmalana, 10390 Sri Lanka Tel: +9411 337 0105 email: chair2017@kdu.ac.lk website: www.kdu.ac.lk/irc2017 Published February 2018