– Wenyi Ding, Ryuichi Shibasaki, Chathumi Ayanthi Kavirathna, Vessel speed optimization in China-Europe’s transportation market considering multiple modes including the Northern Sea Route, The 37th International Symposium on the Okhotsk Sea & Polar Oceans, 20−22 February 2023, Mombetsu, Japan

– Ryuichi Shibasaki, Role of the Suez Canal in the global economy & opportunities for Japan-Egypt collaboration, Advancing Sustainable Peace and Development in the Red Sea: Challenges and Opportunities, The Cairo International Center for Conflict Resolution, Peacekeeping and Peacebuilding in Cairo (CCCPA), 10 January 2023, Cairo, Egypt (online) [invited]