2021 Issues Vol. 14, No. 2 Vol. 14, No. 1 2020 Issues Vol. 13, No. 2 Vol. 13, No. 1 2019 Issues Vol. 12, No. 4 Vol. 12, No. 3 Vol. 12, No. 2 Vol. 12, No. 1 2018 Issues Vol. 11, No. 4 Vol. 11, No. 3 Vol. 11, No. 2 Vol. 11, No. 1 2017 Issues Vol. 10, No. 12 Vol. 10, No. 11 Vol. 10, No. 10 Vol. 10, No. 9 Vol. 10, No. 8 Vol. 10, No. 7 Vol. 10, No. 6 Vol. 10, No. 5 Vol. 10, No. 4 Vol. 10, No. 3 Vol. 10, No. 2 Vol. 10, No. 1 2016 Issues Vol. 9, No. 12 Vol. 9, No. 11 Vol. 9, No. 10 Vol. 9, No. 9 Vol. 9, No. 8 Vol. 9, No. 7 Vol. 9, No. 6 Vol. 9, No. 5 Vol. 9, No. 4 Vol. 9, No. 3 Vol. 9, No. 2 Vol. 9, No. 1 2015 Issues Vol. 8, No. 12 Vol. 8, No. 11 Vol. 8, No. 10 Vol. 8, No. 9 Vol. 8, No. 8 Vol. 8, No. 7 Vol. 8, No. 6 Vol. 8, No. 5 Vol. 8, No. 4 Vol. 8, No. 3 Vol. 8, No. 2 Vol. 8, No. 1 2014 Issues Vol. 7, No. 6 Vol. 7, No. 5 Vol. 7, No. 4 Vol. 7, No. 3 Vol. 7, No. 2 Vol. 7, No. 1 2013 Issues Vol. 6, No. 6 Vol. 6, No. 5 Vol. 6, No. 4 Vol. 6, No. 3 Vol. 6, No. 2 Vol. 6, No. 1 2012 Issues Vol. 5, No. 4 Vol. 5, No. 3 Vol. 5, No. 2 Vol. 5, No. 1 2011 Issues Vol. 4, No. 4 Vol. 4, No. 3 Vol. 4, No. 2 Vol. 4, No. 1 2010 Issues Vol. 3, No. 4 Vol. 3, No. 3 Vol. 3, No. 2 Vol. 3, No. 1 2009 Issues Vol. 2, No. 4 Vol. 2, No. 3 Vol. 2, No. 2 Vol. 2, No. 1 2008 Issues Vol. 1, No. 1 Current Issue Current Issue Volume 14, Number 2, 2021 November A Study on the Optimum Machining Conditions of Polyurethane Materials used for Valuable Packaging Blocks, Suin Eun, Jiwan Kang and Heeyoung Maeng (pp. 1-8). A Review of Classification and Clustering Techniques for Sentiment Analysis Based on Social Network Data, Neha Garg and Kamlesh Sharma (pp. 9-30). A QOS Oriented Handoff Scheme for IEEE 802.11N WLANS with Heterogeneous Nodes, V. Saravanan and V. Mohan Raj (pp. 31-44). Lifetime Maximization of Wireless Sensor Network with Optimization Techniques Integrating Cloud Services, P. Parthiban, G. Sundararaj and P. Maniiarasan (pp. 45-60).