Parallel Processing Performance on Multi-Core PC Cluster Distributing Communication Load to Multiple Paths -- Modeling Real-Time Applications with Reusable Design Patterns -- Optimal Total Exchange in Anonymous Cayley Graphs -- A Variant of Naor-Pinkas Oblivious Transfer for More Efficient Authentication -- Wireless Network of Collaborative Physiological Signal Devices in a U-Healthcare System -- An Encryption Scheme for Communication Internet SCADA Components -- Context-Aware Based Efficient Training System Using Augmented Reality and Gravity Sensor for Healthcare Services -- XMDR-DAI Based on GQBP and LQBP for Business Process -- Dynamic Relation Management of Hierarchical Data for Interoperability in Distributed Environments -- Change-Point Modeling with an Environmental Factor for Software Reliability Assessment and Its Application -- Reliability Analysis and Optimal Release Problem Considering Maintenance Time of Software Components for an Embedded OSS Porting Phase -- Optimal Policies for Random and Periodic Garbage Collections with Tenuring Threshold -- Optimal Checking Times of Backup Operation for a Database System -- Comparison of Aperiodic Checkpoint Placement Algorithms -- Comparative Study of Simulated Annealing Algorithms for Optimal Arrangement Problems in a Linear Consecutive-k-out-of-n: F System -- Tracing Stopping Point for Remaining Distance through Multi Brake Modeling in the ATO -- A Study on Automated Context-aware Access Control Model Using Ontology -- Ontology Based Intelligent Monitoring-Control System.

This volume constitutes the refereed proceedings of the 2nd International Conference on Advanced Science and Technology, AST 2010, held in Miyazaki, Japan, in June 2010. The 16 revised full papers presented in this volume were carefully reviewed and selected from 220 submissions. The papers address current issues in computer science and its applications, software engineering and its applications, bio-science and bio-technology, u- and e-service, science and technology, database theory and application, control and automation, signal processing, image processing and pattern recognition, as well as grid and distributed computing.