Jim ZhaoJim J. Zhao, Ph.D., P.E., F.ASCE, is Director of Engineering at Sheladia Associates in Maryland. He holds degrees from Tongji University, University of Ottowa, Université du Québec, and Bryson University. Jim has over 30 years of exprience in design, teaching, and research.Demetrios E. Tonias, Ph.D., P.E., is a retired civil engineer and former member of the adjunct engineering faculty at Union College in Schenectady, New York. He worked as a design engineer and project manager for a variety of bridge rehabilitation, site development, and public works projects.
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