Recent Advances in Sustainable Energy and Intelligent Systems 7th International Conference on Life System Modeling and Simulation, LSMS 2021 and 7th International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2021, Hangzhou, China, October 22–24, 2021, Proceedings, Part II - Li, Kang; Coombs, Tim; He, Jinghan; Tian, Yuchu; Niu, Qun; Yang, Zhile (Springer Singapore, 2021)