Development of an automatic opening system for sliding and casement windows to control the natural ventilation rateAkane Tsutsumi, Sihwan Lee, Yoshihiro Toriumi, Takashi Kurabuchi, Yutaka Oura and Yukiyasu AsaokaE3S Web of Conf., 396 (2023) 02025DOI: https://doi.org/10.1051/e3sconf/202339602025