2018: “Tree of Life: Symbolism - A Manifestation of Collective Subconscious of a Locale”, 2018 International Urban Design Conference, Zhengzhou City, Henan, China. Theme; Improving Urban Quality, Creating Livable Environment - Urban Design by Multi-Disciplinary Cooperation. Sub Theme: Habitat Environment and Ecological, Green, Healthy City. Architectural Society of China ASC and Zhengzhou University, September 18 to 20, 2018, Zhengzhou, China.