Cite this paper
nullD. Chao, "α-Siphons of a Suboptimal Control Model of a Subclass of Petri Nets," Intelligent Control and Automation
, Vol. 2 No. 1, 2011, pp. 24-30. doi: 10.4236/ica.2011.21003
 J. Ezpeleta, J. M. Colom and J. Martinez, “A Petri Net Based Deadlock Prevention Policy for Flexible Manufacturing Sys-tems,” IEEE Transactions on Robotics and Automation, Vol. 11, No. 2, April 1995, pp. 173-184. doi: 10.1109/70.370500
 Z. W. Li, J. Zhang and M. Zhao, “Li-veness-Enforcing Supervisor Design for a Class of Generalized Petri Net Models of Flexible Manufacturing Systems,” IEE Proceedings Control Theory & Applications, Vol. 1, No. 4, 2007, pp. 955-967. doi:10.1049/iet-cta:20060218
 C.-F. Zhong and Z.-W. Li, “Design of Liveness-Enforcing Supervisors via Transforming Plant Petri Net Models of FMS,” Asian Journal of Control (Special Issue on the Control of Discrete Event Systems), Vol. 6, No. 2, 2010, pp. 270-280.
 J. W. Guo and Z. W. Li, “A Deadlock Prevention Approach for a Class of Timed Petri Nets Using Elementary Siphons,” Asian Journal of Control, Vol. 12, No. 3, 2010, pp. 347-363. doi:10.1002/asjc.189
 M. Uzam and M. C. Zhou, “An Iterative Synthesis Approach to Petri Net Based Deadlock Pre-vention Policy for Flexible Manufacturing Systems,” IEEE Transactions on Systems, Man, and Cybernetics A, Vol. 37, No. 3, 2007, pp. 362-371. doi:10.1109/TSMCA.2007.893484
 L. Piroddi, R. Cor-done and I. Fumagalli, “Selective Siphon Control for Deadlock Prevention in Petri Nets,” IEEE Transactions on Systems, Man, and Cybernetics A, Vol. 38, No. 6, 2008, pp. 1337-1348. doi:10.1109/TSM CA.2008.2003535
 L. Piroddi, R. Cor-done and I. Fumagalli, “Combined Siphon and Marking Gen-eration for Deadlock Prevention in Petri Nets,” IEEE Transac-tions on Systems, Man, and Cybernetics A, Vol. 39, No. 3, May 2009, pp. 650-661. doi:10.1109/TSMCA.2009.2013189
 M. Uzam, Z. W. Li and M. C. Zhou, “Identification and Elimination of Redundant Control Places in Petri Net Based Liveness Enforcing Supervi-sors of FMS,” International Journal of Advanced Manufactur-ing Technology, Vol. 35, No. 1-2, 2007, pp. 150-168. doi:10.1007/s00170- 006-0701-5
 D. Y. Chao, “Improve-ment of Suboptimal Siphon- and FBM-Based Control Model of a Well-Known S3PR,” to appear in IEEE Transactions on Automation Science and Engineering, Vol. 8, 2011.
 Y.-Y. Shih and D. Chao, “Sequence of Control in S3PMR,” Computer Journal, Vol. 53, No. 10, December 2010, pp. 1691-1703. doi:10.1093/comjnl/bxp081
 D. Chao and G. J. Liu, “A Simple Suboptimal Siphon- Based Control Model of a Well-Known S3PR,” Asian Journal of Control, December 2010. http://onlinelibrary. wiley.com/doi/10.1002/asjc.292/full
 D. Y. Chao, “Com-putation of Elementary Siphons in Petri Nets for Deadlock Con-trol,” Computer Journal, Vol. 49, No. 4, 2006, pp. 470-479. doi:10.1093/comjnl/bxl019
 D. Y. Chao, “A Graphic-Algebraic Computation of Elementary Siphons of BS3PR,” Journal of Information Science and Engineering, Vol. 23, No. 6, 2007, pp. 1817-1831.
 D. Y. Chao, “Incremental Approach to Computation of Elementary Siphons for Arbitrary S3PR,” IEE Proceedings Control Theory & Applications, Vol. 2, No. 2, 2007, pp. 168-179.