Chuanqi joined the UK-China International Particle Techonlogy Forum VIII (PTF VIII) hold at Dali Yunnan, China, July 2021. Chuanqi chaired one session of "Multi-scale and Multi-phases Flows" and gave a presentation on a contact algorithm for deformable particles. Fortunately, Chuanqi received the "Youth Presentation Award". Congrates for me!