Cha & Z.Dai, “The Discrete Recursive Quadratic Programming With Artificial Intelligence Strategy,” Proc. of Inter. Conf. on Optimization Theory & Applications, June 2-5, 1992, Singapore. 　　47. W.Guo, J.Z.Cha, Z.C.Shi, M.Rao, “Integrated Intelligent Design Environment on Design Management and Cooperation,” Proceedings of ASME 4th Design Theory and Methodology Conference, Sep.13-16, 1992, Phoenix, AZ, U.S.A.[EI] 　　48. M.Z. Li, J.Yu, Y.Y. Huang,J.Z. Cha,“Analysis of 3-D Elastic Contact Stresses for the Cylinder Head of an Internal Combustion Engine. An improved mixed finite element method,” Proc. Of ASME Design Technical Conferences, Miami, FL, USA, Sep 22-25, 1991, DE v 32 pt 2. Publ by ASME, New York, NY, USA. p 123-130 [EI] 　　49. J.Z.Cha, Z.W.Niu & Z.Y.Zhao, “An Object-Oriented Knowledge Base Structure and Its Applications in CAPP,” Proceedings of The First International Conference on Manufacturing Technology, Dec.25-27, 1991, Hong Kong, pp.179-182. 　　50. J.Z.Cha, Z.Y.Zhao & M.Rao, “Applications of Intelligence Engineering in Manufacturing Process,” Proceedings of the First International Conference on Manufacturing Technology, Dec.25-27, 1991, Hong Kong, pp.333-338. 　　51. H.Tang, J.Z.Cha, Y.H.Wang & C.Zhang, “The Principles of CePSTum and Its Application in Quantitative Fault Diagnosis of Gears,” Proceedings of Thirteenth Biannual Conference on Mechanical Vibration & Noise. ASME, Sep.22-25, 1991,Miami FL, pp.141-151. 　　52. Z.Y.Zhao, J.Z.Cha, M.Z.Zhu & H.Tang, “An New Diagnosis Method Based on State Spectrum and Its Applications,” Proceedings of Thirteenth Biennial Conference on Mechanical Vibration & Noise, ASME,Sep.22-25, 1991,Miami FL, pp.153-157. 　　53. Z.Y.Zhao, J.Z.Cha, H.Tang & M.Z.Zhu, “The Application of Principal-Component Analysis in Gear Fault Diagnosis,” Proceedings of Thirteenth Biennial Conference on Mechanical Vibration & Noise, ASME, Sep. 22-25, 1991, Miami FL, PP.159-163. 　　54. J.Z.Cha, Z.Y.Zhao & W.Guo, “New PrOGREss on Integrated Environment for Intelligent Manufacturing Automation,” Proceedings of IEEE International Symposium on Intelligent Control, August 15-17, 1991, Arlington Virginia, pp.7-12. 　　55. M.Rao, J.Z.Cha & J.Zhou, “Integrated Intelligent System for Manufacturing Process,” Proceedings of IFAC International Symposium on Distributed Intelligent Systems, August 13-15, 1991, Arlington Virginia, pp.77-82. 　　56. M.Rao, J.Z.Cha & J.Zhou, “Next Generation Manufacturing Environment for Process Automation,” Proceedings of the Fourth International Symposium on Process Systems Engineering(PSE 91), August 5-9, 1991, Montebell, Quebec, Canada. 　　57. M.Rao, J.Z.Cha & J.Zhou, “PHIIS: Parallel Hierarchical Integrated Intelligent System for Engineering Design Automation,” Engineering Applications of Artificial Intelligence, An International Journal, 1991, Vol.4, No.2, pp.145-150. 　　58. J.Z.Cha & R.W.Mayne, “The Symmetric Rank One Formula and Its Application in Discrete Optimization,” ASME Transaction, J. of Mechanical Design, 1991, Vol.113, No.3, pp.312-317.[EI] 　　59. C.F.Meng, X.N.Lu & J.Z.Cha, “The Optimal Synthesis of A Planary Chain Link Compound Mechanism,” ASME Proceedings of the Conference on Mechanisms,