大川真紀雄 (Makio Ohkawa) - マイポータル

Single-crystal X-ray diffraction study of a largely Cs-exchanged natural Ca-chabazite: Crystal-chemical factors for its excellent Cs-exchange ability

Kawata, Naomi, Furuhashi, Ryo, Fujiwara, Keiko, Ohkawa, Makio, Nakatsuka, Akihiko

MICROPOROUS AND MESOPOROUS MATERIALS 379 2024年11月査読有り

Single-crystal X-ray diffraction study of a largely Cs-exchanged natural Ca-chabazite: Crystal-chemical factors for its excellent Cs-exchange ability

Naomi Kawata, Ryo Furuhashi, Keiko Fujiwara,Makio Ohkawa, Akihiko Nakatsuka

Microporous and Mesoporous Materials 379 2024年11月査読有り

Aluminous hydrous magnesium silicate as a lower-mantle hydrogen reservoir: a role as an agent for material transport

Nakatsuka, Akihiko, Yoshiasa, Akira, Ohkawa, Makio, Ito, Eiji

SCIENTIFIC REPORTS 12(1) 2022年3月4日査読有り

Incorporation mechanism of Fe and Al into bridgmanite in a subducting mid-ocean ridge basalt and its crystal chemistry

Nakatsuka, Akihiko, Fukui, Hiroshi, Kamada, Seiji, Hirao, Naohisa, Ohkawa, Makio, Sugiyama, Kazumasa, Yoshino, Takashi

SCIENTIFIC REPORTS 11(1) 2021年11月24日査読有り

The Dependence of Curing Temperature on the Crystallization of Stratlingite in the High Alumina Cement Hydrates : In the Case of Curing Temperature at 50 ºC and 30 ºC

Journal of the Technical Associations of Refractories, Japan 37(1) 19-26 2017年査読有り

A new high-pressure strontium germanate, SrGe2O5

Nakatsuka, Akihiko, Sugiyama, Kazumasa, Ohkawa, Makio, Ohtaka, Osamu, Fujiwara, Keiko, Yoshiasa, Akira

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 72 716-+ 2016年10月査読有り

The effect of curing temperature of high alumina cement on the crystallization of stratlingite: In the case of curing temperatures of 10 degrees C and 60 degrees C

Shinmei, Toshio, Ohkawa, Makio, Iiyama, Makoto, Woehrmeyer, Christoph, Parr, Chris

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES 110(2) 92-95 2015年4月査読有り

Crystallization of Stratlingite in a High Alumina Cement – Silica Fume System with or without Deflocculant

Journal of the Technical Association of Refractories, Japan 32(1) 3-11 2012年査読有り

Effect of CO2 gas on Crystallization of C2ASH8 (stratlingite) in a High Alumina Cement with Silica Fume

Journal of the Technical Association of Refractories, Japan 32(3) 188-193 2012年査読有り

Stratlingite in Hydrate of High-Alumina Cement with Silica Fume

Journal of the Technical Association of Refractories, Japan 31(4) 237-241 2011年査読有り

Locations of extra-framework cations and water molecules in a natural hydrated heulandite Ca2.94Sr0.45Na0.84K0.24Al8.80Si27.42O72･24.50H2O

Topics in Chemistry and Material Science: Advanced Micro- and Mesoporous Materials 9(4) 40-50 2010年査読有り

Structural investigation of low-symmetry vesuvianite collected from Tojyo, Hiroshima, Japan: Implications for hydrogarnet-like substitution

Ohkawa, Makio, Armbruster, Thomas, Galuskin, Evgeny

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES 104(2) 69-76 2009年4月査読有り

Chenguodaite (Ag9FeTe2S4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China

Gu XiangPing, Watanabe, Makoto, Xie XianDe, Peng ShengLin, Nakamuta, Yoshihiro, Ohkawa, Makio, Hoshino, Kenichi, Ohsumi, Kazumasa, Shibata, Yasuhiro

CHINESE SCIENCE BULLETIN 53(22) 3567-3573 2008年11月査読有り

Silicon-substituted magnetite and accompanying iron oxides and hydroxides from the Kumano mine, Yamaguchi Prefecture, Japan: Reexamination of the so-called maghemite (γ-Fe2O3)

M.Miyahara E.Ohta

Journal of Mineralogical and Petrological Sciences 102(3) 182-193 2007年6月査読有り

Reactivity of superoxide ions (O-2(-)) occluded in micropores of calcium aluminosilicate varied via substitution with transition metal ions

K Sato, J Iritani, R Miyamoto, S Fujita, K Suzuki, M Ohkawa, T Mori

MOLECULAR SIEVES: FROM BASIC RESEARCH TO INDUSTRIAL APPLICATIONS, PTS A AND B 158 2001-2008 2005年査読有り

Controlling the quantity of radical oxygen occluded in a new aluminum silicate with nanopores

Fujita, S, Ohkawa, M, Suzuki, K, Nakano, H, Mori, T, Masuda, H

CHEMISTRY OF MATERIALS 15(26) 4879-4881 2003年12月30日査読有り

Phase relation of Na1-xKxMgF3 (1 <= x <= 1) perovskite-type solid-solutions

Yoshiasa, A, Sakamoto, D, Okudera, H, Ohkawa, M, Ota, K

MATERIALS RESEARCH BULLETIN 38(3) 421-427 2003年2月20日査読有り

Oxidative destruction of hydrocarbons on a new zeolite-like crystal of Ca12Al10Si4O35 including O-2(-) and O-2(2-) radicals

Fujita, S, Suzuki, K, Ohkawa, M, Mori, T, Iida, Y, Miwa, Y, Masuda, H, Shimada, S

CHEMISTRY OF MATERIALS 15(1) 255-263 2003年1月14日査読有り

A new technique to remove hydrogen chloride gas at high temperature using mayenite

藤田悟 k.suzuki y.shibasaki

Journal of the Australasian Ceramic Society 38 175-179 2002年4月1日査読有り

High Al contents in quartz and hydrothermal alteration of the ’Roseki’ deposits in the Mitsuishi district, Southwest Japan

h.hongu, a.yoshiasa, m.kurosawa, 北川, 隆司, s.takeno

Journal of Mineralogical and Petrological Sciences 97(4) 168-176 2002年査読有り

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