2021 – Present
Management Committee Member, Asian Cycling Confederation

2021 – 2023
Council Member, The Macau Institution of Engineers

2016 – Present
Secretary General, Cycling General Association of Macau, China

Li, Ke, Wong, Pak-kin, Tam, Lap-mou, Wong Hang-cheong, “Engine Idle Speed System Calibration and Optimization Using Least Squares Support Vector Machine and Genetic Algorithm”, Proceedings of International Federation of Automotive Engineering Societies World Automotive Congress 2008, Paper No. F2008-SC-008, Germany, 2008

Wong, Hang-cheong, Wong, Pak-kin, “Design and experimental evaluation of predictive engine air-ratio control based on online neural network”, Electronic Proceedings of International Federation of Automotive Engineering Societies – 33rd World Automotive Congress, F2010-C-028, Hungary, 2010

Wong, Pak Kin, Wong, Hang Cheong, Vong, Chi Man, “Modelling and prediction of automotive engine airratio using relevance vector machine”, Proceedings of 12th International Conference on Control, Automation, Robotics and Vision (ICARCV 2012), Published by IEEE, pp. 1710-1715, China, December 2012

Wong, Pak-kin, Wong, Hang-cheong, Vong, Chi-man, Online Time-sequence Incremental and Decremental Least Squares Support Vector Machines for Engine Air-ratio Prediction, International Journal of Engine Research, Vol. 13, No. 1, pp.28-40, 2012

Xie, Zhengchao, Wong, Pak Kin, Huang, Xinzheng, Wong, Hang Cheong, Design of an Active Vehicle Suspension Based on an Enhanced PID Control with Wheelbase Preview and Tuning Using Genetic Algorithm, Journal of Chinese Society of Mechanical Engineers, Vol. 33, No. 2, pp.103-112, 2012

Wong, Pak-kin, Xu, Qingsong, Vong, Chi-man, Wong, Hang-cheong, Rate-Dependent Hysteresis Modeling and Control of a Piezostage Using Online Support Vector Machine and Relevance Vector Machine, IEEE Transactions on Industrial Electronics, Vol. 59, No. 4, pp.1988-2001, 2012. DOI: 10.1109/TIE.2011.2166235

Wong, Hang-Cheong, Wong, Pak-Kin, Vong Chi-Man, Model predictive engine air-ratio control using online sequential relevance vector machine, Journal of Control Science and Engineering, Vol. 2012, Article ID 731825, 15 pages, 2012

Wong, Pak-kin, Huang, Shaojia, Xu, Tao, Wong, Hang Cheong, Xie, Zhengchao, Design of a New Suspension System Controlled by Fuzzy-PID with Wheelbase Preview, Applied Mechanics and Materials, Vol. 192, pp.106-110, 2012

Wong, Pak Kin, Vong, Chi Man, Ip, Weng Fai, Wong, Hang Cheong, Feasibility Study on Telemetric Vehicle Emission Examination, International Journal of Satellite Communications Policy and Management, Vol. 1, No. 2/3, pp.220-229, 2012.

Xie, Zhengchao, Wong, Pak-Kin, Long Zhang, Wong, Hang-cheong, Numerical Modeling and Control of Rotating Plate with Coupled Self-sensing and Frequency-dependent Active Constrained Layer Damping, Mathematical Problems in Engineering, Vol. 2012, Article ID 194010, 15 pages, 2012

Xie, Zhengchao, Wong, Pak Kin, Zhao, Jing, Xu, Tao, Wong, Ka In, Wong, Hang cheong, A Noise-Insensitive Semi-Active Air Suspension for Heavy-Duty Vehicles with an Integrated Fuzzy-Wheelbase Preview Control, Mathematical Problems in Engineering, Vol. 2013, Article ID 121953, 12 pages, 2013

Wong, Pak Kin, Wong, Hang Cheong, Vong, Chi Man, Xie, Zhengchao, Huang, Shaojia, Model predictive engine air-ratio control using online sequential extreme learning machine, Neural Computing and Applications, DOI: 10.007/s00521/-014-1555-7, 2014

Wong, Pak Kin, Wong, Hang Cheong, Vong, Chi Man, Iong, Tong Meng, Wong, Ka In, Gao, Xianghui, Fault tolerance automotive air-ratio control using extreme learning machine model predictive controller, Mathematical Problems in Engineering, Article ID 317142, 10 pages, 2015

Wong, Pak Kin, Wong, Hang Cheong, Vong, Chi Man, Wong, Ka In, Online Wavelet Least-Squares Support Vector Machine Fuzzy Predictive Control for Engine Lambda Regulation, International Journal of Engine Research, pp.1-20, 2016, DOI: 10.1177/1468087415623909

Deng, Chuxia, Wong, Ada, Li, Haoran, Jia, Yanwei, Mak, Pui-In, Martins, Rui, Liu, Yan, Vong, Chi Man, Wong, Hang Cheong, Wong, Pak Kin, Wang, Haitao, Sun, Heng, Drug Screening of Cancer Cell Lines and Human Primary Tumors Using Droplet Microfluidics, Scientific Reports, Vol. 7, Article no. 9109, 2017

Ghadikolaei, Meisam Ahmadi, Wong, Pak Kin, Cheung, Chun Shun, Zhao, Jing, Ning, Zhi, Yung, Ka-Fu, Wong, Hang Cheong, Kumar Gali, Nirmal, Why is the world not yet ready to use alternative fuel vehicles?, Heliyon, Volume 7, Issue 7, 2021

Wong, PK, Ghadikolaei, MA, Chen, SH, Fadairo, AA, Ng, KW, Lee, SMY, Xu, JC, Lian, ZD, Li, SL, Wong, HC, Zhao, J, Ning, Z and Gali, NK, Physicochemical and cell toxicity properties of particulate matter (PM) from a diesel vehicle fueled with diesel, spent coffee ground biodiesel, and ethanol, Science of the Total Environment, Volume 824, 2022

Wong, PK, Ghadikolaei, MA, Chen, SH, Fadairo, AA, Ng, KW, Lee, SMY, Xu, JC, Lian, ZD, Li, L, Wong, HC, Ning, Z, Gali, NK and Zhao, J, Physical, chemical, and cell toxicity properties of mature/aged particulate matter (PM) trapped in a diesel particulate filter (DPF) along with the results from freshly produced PM of a diesel engine, Journal of Hazardous Materials, Volume 434, 2022