I am Yougang Wang, a professor at the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC). I graduated from the Department of Astronomy at Peking University in 2006 and subsequently began my postdoctoral fellowship at NAOC. I was appointed to a permanent research position there in 2008 upon completing my postdoctoral training and have been with the institution ever since. My research focuses on large-scale structure, galaxy formation and evolution, and galaxy dynamics. I have authored/co-authored more than 70 peer-reviewed publications, with the majority focusing on neutral hydrogen experiments and related science. As a core member of the Tianlai experiment since 2009, I contributed to its early-stage experimentation, site selection, and the establishment of its experimental array (comprising three cylinders and sixteen dishes). This radio telescope array is designed to detect cosmic 21 cm signals. I was also deeply involved in subsequent system debugging, data processing, and scientific analysis. Currently, I serve as the Principal Investigator (PI) for the FATHOMER (FAst neuTral HydrOgen intensity Mapping ExpeRiment) project, which is conducted using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).