Zuomin Dong

Learn More
—Contraflow operation is frequently used for reducing traffic congestion near tunnels and bridges where traffic demands from the opposite directions vary periodically. In this work, a generic real-time optimal contraflow control method has been introduced. The introduced method integrates two important functional components: 1) an intelligent system with(More)
For design problems involving computation-intensive analysis or simulation processes, approximation models are usually introduced to reduce computation time. Most approximation-based optimization methods make step-by-step improvements to the approximation model by adjusting the limits of the design variables. In this work, a new approximation-based(More)
Electric vehicles, as an emerging transportation platform, have been introduced over the past several decades due to various concerns about air pollution and the contribution of emissions to global climate change. Although electric cars and buses have been the focus of much of electric vehicle development, smaller low-speed electric vehicles are used(More)
With increased dependence on elevators in high-rise buildings, a reliable and effective backup power system is in urgent need. In this work, a hybrid backup power system that consists of hydrogen fuel cells, batteries and ultracapacitors is introduced. The electric power system was modeled using the multi-physics/system-dynamics modeling tool,(More)
The use of approximation models in multiobjective optimization problems that involve expensive analysis and simulation processes such as multi-physics modeling and simulation, finite element analysis (FEA) and computational fluid dynamics (CFD) has become more popular and more attractive, especially for the optimization of complex mechatronics systems.(More)