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pro vyhledávání: '"重量減少"'
Autor:
Yamamoto, Masahiro, Oto, Hiroki, Eguro, Takashi, Tajima, Michio, Hirose, Kazuyuki, Takahashi, Keiji
Publikováno v:
第22回宇宙エネルギーシンポジウム 平成14年度 = The 22nd ISAS Space Energy Symposium March 12, 2003. :11-15
Li ion cells have a higher specific energy than alkaline cells widely used to date and can contribute well enough to the requirement of the weight saving of secondary batteries for space applications. Because of their higher discharge voltage, the nu
Autor:
Hashimoto, Hirofumi
Publikováno v:
宇宙利用シンポジウム 第19回 平成14年度 = Space Utilization Research: Proceedings of the Nineteenth Space Utilization Symposium. :58-61
In order to investigate tolerance of plant seeds to vacuum environment, seeds of forty-six species were exposed to vacuum environment at approximately 10(exp -7) torr during the four weeks. After the vacuum exposure, germination rates of these seeds