Title	A Color Contrast Algorithm for E-learning Standard
Author	Young Gun Jang, Hack Yoon Kim, Keun Man Yi
Citation	Vol. 7  No. 4  pp. 195-201
Keywords	E-learning, Color contrast, Color temperature, Learning disorders, Accessibility, Readability

Title	An Event-Driven Pattern for Asynchronous Invocation in Distributed Systems
Author	Soheil Toodeh Fallah, Ehsan Zaeri Moghaddam, Saeed Parsa
Citation	Vol. 7  No. 4  pp. 189-194
Keywords	Asynchronous Invocation, Pattern, Distributed Systems, Remote Method, Service, Framework

Title	Analysis of Personal Email Networks using Spectral Decomposition
Author	Ungsik Kim
Citation	Vol. 7  No. 4  pp. 185-188
Keywords	Spectral decomposition, Spam email, Laplacian matrix, eigenvector centrality, orthogonal projection

Title	A Route-Oriented Sleep Scheme in Wireless Sensor Network
Author	Honggang Wang, Dongming Peng, Wei Wang, Hamid Sharif
Citation	Vol. 7  No. 4  pp. 179-184
Keywords	Percolation Theory, Wireless Sensor Network, Rate-Oriented Sleep.