@article{oai:nipr.repo.nii.ac.jp:00003773,
 author = {Uchida, Tsutomu and Mae, Shinji and Hondoh, Takeo and Duval, Paul and Lipenkov, Volodya Ya.},
 journal = {Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology},
 month = {Sep},
 note = {P(論文), Microscopic observations of thin sections of Vostok ice cores, Antarctica, showed that various shapes and sizes of air-hydrate crystals are located on the grain boundaries. The surface energy of air-hydrate crystal was measured on 41 crystals in 7 different depth ice cores. These measurements revealed that the surface energy of air-hydrate was almost constant at all depths below 1050m, and that the average ratio between the surface energy of air-hydrate and ice grain boundary energy was 0.97±0.19. The observations also showed that air-hydrate crystals acted as obstacles for ice grain boundary migration.},
 pages = {1--6},
 title = {Measurements of surface energy of air-hydrate crystals in Vostok ice core, Antarctica},
 volume = {7},
 year = {1993}
}