Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Nobuto Oka"'
Autor:
Baowei Xie, Ryo Sakamoto, Ayuko Kitajou, Kosuke Nakamoto, Liwei Zhao, Shigeto Okada, Yuki Fujita, Nobuto Oka, Tetsuaki Nishida, Wataru Kobayashi, Masaki Okada, Toshiya Takahara
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Abstract The carbonophosphate Na3FePO4CO3 was synthesized by the mechanical ball milling method for the first time. The composition of the obtained sample with a higher amount of Fe2+ was Na2.66Fe2+ 0.66Fe3+ 0.34PO4CO3 as confirmed by Mössbauer anal
Externí odkaz:
https://doaj.org/article/942414c872524fde803b5ae89621f658
Publikováno v:
Applied Water Science, Vol 7, Iss 7, Pp 4109-4115 (2017)
Abstract Water purification was examined using porous ceramics prepared by sintering a powder mixture of volcanic ash, waste glass and a small amount of wood charcoal. The porous ceramics had cross-linked 3D-channels of which the diameter ranged from
Externí odkaz:
https://doaj.org/article/c57434770abb46089687ca9b8f33448d
Autor:
Nobuto Oka, Akiyo Murata, Shin-ichi Nakamura, Junjun Jia, Yoshinori Iwabuchi, Hidefumi Kotsubo, Yuzo Shigesato
Publikováno v:
APL Materials, Vol 3, Iss 10, Pp 104407-104407-6 (2015)
A process based on reactive gas flow sputtering (GFS) for depositing visible-light active photocatalytic WO3 films at high deposition rates and with high film quality was successfully demonstrated. The deposition rate for this process was over 10 tim
Externí odkaz:
https://doaj.org/article/c7d92812e61e492d905c5bbc32993bad
Autor:
Toshihiro Ashino, Nobuto Oka
Publikováno v:
Data Science Journal, Vol 6 (2007)
Every material database on the Internet has a different data schema. There are some trial attempts to define unified schema for material databases, but since the structure of scientific data is very complicated and changes dynamically, defining a com
Externí odkaz:
https://doaj.org/article/bda3dd1fdbb94962ad6b79bc10c5f930
Publikováno v:
Data Science Journal, Vol 6 (2007)
It is widely accepted that colloids play an important role in the contaminant migration process at present. However, the colloid deposition structure on rock surfaces has scarcely been studied. In this paper, preliminary results for a fractal charact
Externí odkaz:
https://doaj.org/article/bf8908c3b7d94738b024c173e4f0ec44
Autor:
Shunsuke Matsusako, Sayaka Masuda, Saeko Matsuo, Ryota Imamura, Takahisa Sakuragi, Honami Inada, Hikaru Hayakawa, Tetsuaki Nishida, Nobuto Oka
Publikováno v:
Hyperfine Interactions. 244
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:23655-23689
This review paper summarizes early Mossbauer and DTA studies of different oxide glasses containing small amounts of iron (III) or tin (IV) as the probe. A lot of valuable information of the atomic level has been obtained about the role of nonbridging
Autor:
Ryota Imamura, Takahisa Sakuragi, Nobuto Oka, Tetsuaki Nishida, Yasushi Sato, Shunsuke Matsusako
Publikováno v:
Journal of Materials Science: Materials in Electronics. 31:22881-22892
Heat treatment of 20BaO·xMmOn·(10−x)Fe2O3·70V2O5 glasses containing different metal oxides (MmOn), such as Fe2O3, Al2O3, MnO2, CuO, Cu2O, ZnO, Ga2O3, GeO2, MoO3, SnO2 and WO3, was accompanied by a remarkable decrease in DC-resistivity (ρ) at ro
Publikováno v:
Joho Chishiki Gakkaishi. 30:361-369
Publikováno v:
RADIOISOTOPES. 68:331-337