\subsection{Comparing to Perseus}
Table 1 shows the physical properties of the shell discussed here and the largest shell (CPS 5) in the Perseus (\citet{Arce_2011}). We find that while the momenta of the two shells are comparable, the shell in the Ophiuchus cloud is more massive with a lower expansion velocity. This results in its smaller kinetic energy. However, since the total energy in the turbulence is smaller in the Ophiuchus cloud, the ratios of the shell energy to the turbulence energy in the cloud are comparable to each other. In the comparison of the energy injection rate and the turbulence dissipation rate, the shell in the Ophiuchus is powerful enough to drive the turbulence by itself, while in the Perseus, all shells with confidence scores larger than 4 (\citet{Arce_2011}) are required to get an energy injection rate at the same order of magnitude as the turbulence dissipation rate. We think that this hints at the fundamental difference between the two clouds and the shell(s) therein. The Ophiuchus cloud is slightly smaller than the Perseus cloud in terms of its mass and size, and the larger mass/smaller velocity of the shell in the Ophiuchus cloud probably indicates that the shell has been expanding for a longer period of time.