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.

Title	Recognizing Handover Situation for Vertical Handovers using Mobile IPv6 Signaling
Author	Pyung-Soo Kim, Yong-Jin Kim
Citation	Vol. 7  No. 4  pp. 173-178
Keywords	Mobile IPv6, Vertical Handover, Care-of Address, Handover Situation, Congestion Control.

Title	Spectral Analysis of Speech under Stress
Author	Milan Sigmund
Citation	Vol. 7  No. 4  pp. 170-172
Keywords	Emotional speech signal, spectral analysis.