@article{oai:nipr.repo.nii.ac.jp:00006313,
 author = {Saito,Yoshitaka and Matsuzaka,Yukihiko and Miyahara,Yasuaki and Ohnishi,Akira and Yamagami,Takamasa and Yokota,Rikio and Kobayashi,Tadashi and Nishimura,Jun},
 journal = {Advances in polar upper atmosphere research},
 month = {Aug},
 note = {P(論文), Large plastic balloon play an important role for scientific observations at high altitude in the field of astrophysics and geophysics. In these observations, it has been well recognized that the long duration balloon flights are indispensable for precise observations. For a normal zero pressure balloon, we need to drop ballast to keep a level altitude during day and night to prevent from altitude excursions. This is due to the temperature change of lifting gas, and the duration of the balloon is limited when all the ballast on board the balloon has been exhausted. In this paper, we discuss a possibility of minimizing the temperature variation of the lifting gas using specific balloon films with suitable optical properties and show the optical properties of some test films for this purpose.},
 pages = {163--171},
 title = {Ballast saving balloons with a film of specific optical properties},
 volume = {14},
 year = {2000}
}