Tsinghua University rapid compression machine (THU-RCM). Details can be found in the paper of Di, Haisheng, Xin He, Peng Zhang, Zhi Wang, Margaret S. Wooldridge, Chung K. Law, Cuiping Wang, Shijin Shuai, and Jianxin Wang. "Effects of buffer gas composition on low-temperature ignition of iso-octane and n-heptane." Combustion and Flame 161, no. 10 (2014): 2531-2538.