Research activity information

• Correlation between [AlO4/h+]0 and E’ centers in γ-irradiated natural quartz: thermal kinetics and the origin of non-optically bleachable [AlO4/h+]°centers before and after visible light stimulation

  Khalif Benzid, Atsushi Tani

  Jun. 2025, Next Research

  Scientific journal


• Electron Spin Resonance Study on Hydrogen Abstraction Reactions of Radiation-Induced Radicals in Synthetic Silica Clathrate with Ethylamine and Ethanol

  Shusuke Isogai, Kazuhiko Masuda, Kazuma Dan, Atsushi Tani, Sachiko Tojo

  Mar. 2025, Atoms

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Dependence of Carboxylate Anions on Physicochemical Properties of Tributyloctylphosphonium-Based Ionic Liquids

  Hyoma Akamatsu, Sakika Kubo, Seiya Kikuchi, Yusuke Tsuchida, Katsuhiko Tsunashima, Hidekatsu Hotta, Akina Yokobiki, Yusuke Funasako, Yoshiharu Okuno, Atsuyo Hamada, Hirohisa Yamada, Atsushi Tani

  A new group of tributyloctylphosphonium-based ionic liquids containing several carboxylate anions was designed, prepared and physicochemically characterized. All phosphonium carboxylates obtained in this study became viscous liquids at room temperature. The formate-based ionic liquid exhibited the highest density and number density due to the smallest anion size. All ionic liquids exhibited typical ionic conduction behavior, since the viscosity decreased and the conductivity increased with increasing temperature. It was also found that the viscosity tended to decrease with increasing the carbon numbers of the alkyl chains of lower carboxylate anions. Compared to the propionate-based ionic liquids, lactate-based ionic liquids exhibited higher viscosity. The phosphonium ionic liquids based on carboxylate anions showed higher thermal stability than nitrogen-based counterpart ionic liquids.

  The Electrochemical Society, Sep. 2024, ECS Transactions, 114(6) (6), 89 - 95

  Scientific journal


• Introduction of Cyclic Structures into Phosphonium Salts As Potential Guest Substances for Ionic Clathrate Hydrates

  Keigo Kawabata, Sakura Azuma, Jin Shimada, Yusuke Tsuchida, Katsuhiko Tsunashima, Takeshi Sugahara, Atsushi Tani

  An ionic clathrate hydrate composed of tri-n-butylbenzyl-phosphonium chloride has been investigated from the viewpoint of phase equilibrium (temperature-composition) relations in comparison with an ionic clathrate hydrate with tri-n-butyl(cyclohexylmethyl)phosphonium bromide. The highest dissociation temperature of the ionic clathrate hydrates composed of tri-n-butylbenzylphosphonium chloride and tri-n-butyl(cyclohexyl-methyl)phosphonium bromide were 274.4 ± 0.1 K and 276.0 ± 0.1 K, respectively at the atmospheric pressure. The dissociation enthalpy of tri-n-butylbenzyl-phosphonium chloride ionic clathrate hydrate was 192 ± 3 kJ·kg⁻¹. These results allow us to suggest that controlling steric structures in the guest compounds might be one of the options for tuning the equilibrium temperatures of ionic clathrate hydrates.

  The Electrochemical Society, Sep. 2024, ECS Transactions, 114(6) (6), 75 - 79

  Scientific journal


• Hydrogen atom in γ-irradiated synthetic isopropylamine silica clathrate

  Nobuyuki Tamai, Shusuke Isogai, Yuka Yokoyama, Atsushi Tani

  May 2024, Radiation Physics and Chemistry

  Scientific journal


• Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates

  Jin Shimada, Takeshi Sugahara, Atsushi Tani, Takahiro Ueda, Riko Tsugaya, Katsuhiko Tsunashima, Takayuki Hirai

  American Chemical Society (ACS), Mar. 2024, Energy & Fuels, 38(7) (7), 6471 - 6477

  Scientific journal


• Thermal behavior of E′ point defects in gamma-irradiated natural quartz: Study of the Meyer-Neldel rule using electron spin resonance

  Khalif Benzid, Atsushi Tani

  Elsevier BV, Jan. 2024, Journal of Luminescence, 265, 120218 - 120218

  Scientific journal


• Interlaboratory comparison of electron paramagnetic resonance tooth enamel dosimetry with investigations of the dose responses of the standard samples

  Shin Toyoda, Kazuhiko Inoue, Ichiro Yamaguchi, Masaharu Hoshi, Seiko Hirota, Toshitaka Oka, Tatsuya Shimazaki, Hideyuki Mizuno, Atsushi Tani, Hiroshi Yasuda, Chryzel A B Gonzales, Kenichi Okutsu, Atsushi Takahashi, Nao Tanaka, Azumi Todaka

  Abstract A total of seven Japanese laboratories participated in an intercomparison study to estimate the dose given to tooth enamel samples, using the electron spin resonance method. Each of four of the participating laboratories prepared a set of tooth enamel samples, using the electron spin resonance method. Four of the participating laboratories each prepared a set of tooth enamel samples, consisting of seven standard aliquots irradiated from 100 to 2000 mGy and three samples with an ‘unknown’ dose between 140 and 960 mGy, were intended to eliminate bias from sample preparation. Although not all seven laboratories measured all four sets of samples, the major finding was that systematic biases in estimating doses may be caused by differences in laboratory measurements rather than by the enamel extracting procedures. When doses were averaged by measurements made by multiple laboratories, the averaged values were close to the actual values. Scattering in the intercepts in the standard dose response would be a serious problem in actual dosimetry where no background sample is available.

  Oxford University Press (OUP), Sep. 2023, Radiation Protection Dosimetry, 199(14) (14), 1557 - 1564

  Scientific journal


• Investigation of the provenance of Okinose sand using ESR signals of quartz in granite and granodiorite around Osaka Bay

  Ryo Kobayashi, Hibiki Kojima, Atsushi Tani

  Abstract A submarine dune on the seabed in the Okinose area of Osaka Bay, Japan, was found to be composed mainly of coarse quartz sand. To investigate the provenance of this sand, quartz extracted from granite and granodiorite sources near Osaka Bay was measured by electron spin resonance; E1′, Ti-Li and Al centres were detected in all samples. Although the heat-treated E1′ centre was found not to be useful for the present provenance study, the ratio of the signal intensities of the Ti-Li centre to the Al centre classified the potential sources into two groups, based on their likelihood. The results indicated that granite and granodiorite from Awaji Island as well as Rokko granite could be the source of the Okinose sand.

  Oxford University Press (OUP), Sep. 2023, Radiation Protection Dosimetry, 199(14) (14), 1639 - 1645

  Scientific journal


• Hydrogen transfer reactions via organic radicals in gamma-irradiated chibaite

  Yuka Yokoyama, Shusuke Isogai, Kenta Kusuki, Atsushi Tani, Hirotsugu Nishido

  Abstract Chibaite, a silica-framework structure with cage-like voids occupied by gaseous molecules, was found in marine sediments. Its formation age could be evaluated using electron spin resonance (ESR) if the radicals formed by natural radiation can be assumed to accumulate over time. To investigate whether hydrogen transfer reactions, where organic radicals withdraw hydrogen atoms from other molecules in adjacent cages, occur in chibaite and affect ESR dating, gamma-irradiated chibaite was measured by ESR. Methyl, ethyl, n-propyl, isopropyl, tert-butyl radicals and hydrogen atoms were created by gamma irradiation at 77 K. The amount of tert-butyl radicals increased around 240 K and the similar amount of the other organic radicals decreased simultaneously, implying that hydrogen transfer reactions occur between isobutane and the organic radicals in chibaite around 240 K and therefore would have no influence on ESR dating because the reactions are completed at the environmental temperature.

  Oxford University Press (OUP), Sep. 2023, Radiation Protection Dosimetry, 199(14) (14), 1646 - 1652

  Scientific journal


• Quasi-elastic neutron scattering studies on fast dynamics of water molecules in tetra-n-butylammonium bromide semiclathrate hydrate

  Jin Shimada, Atsushi Tani, Takeshi Yamada, Takeshi Sugahara, Takayuki Hirai, Takuo Okuchi

  The dynamics of the water molecules in tetra-n-butyl-d36-ammonium bromide semiclathrate hydrate was investigated by quasi-elastic neutron scattering (QENS). The QENS results clearly revealed a fast reorientation motion of water molecules in the temperature range of 212–278 K. The mean jump distance of hydrogen atoms was within 1.5–2.0 Å. The relaxation time of water reorientation was estimated to be 100–410 ps with an activation energy of 10.2 ± 5.8 kJ·mol−1. The activation energy was in good agreement with the cleavage energy of hydrogen bonds. Such a short relaxation time of water reorientation is possibly due to strong interaction between a bromide anion and its surrounding water molecules (similar to so-called negative hydration), which suggests a unique strategy for designing efficient, safe, and inexpensive proton conductors having the framework of semiclathrate hydrates.

  AIP Publishing, Jul. 2023, Applied Physics Letters, 123(4) (4)

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Proton conduction in tetra-n-butylammonium bromide semiclathrate hydrate

  Jin Shimada, Yuta Takaoka, Takahiro Ueda, Atsushi Tani, Takeshi Sugahara, Katsuhiko Tsunashima, Hirohisa Yamada, Takayuki Hirai

  Elsevier BV, May 2023, Solid State Ionics, 393, 116188 - 116188

  Scientific journal


• Gamma-Ray-Induced Amino Acid Formation in Aqueous Small Bodies in the Early Solar System

  Yoko Kebukawa, Shinya Asano, Atsushi Tani, Isao Yoda, Kensei Kobayashi

  Dec. 2022, ACS Central Science

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Intermolecular Interaction of Tetrabutylammonium and Tetrabutylphosphonium Salt Hydrates by Low-Frequency Raman Observation

  Yasuhiro Miwa, Tomoki Nagahama, Harumi Sato, Atsushi Tani, Kei Takeya

  Jul. 2022, Molecules (Basel, Switzerland), 27(15) (15)

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Equilibrium Phase Relations and Dissociation Enthalpies of Tri-n-butylalkenylphosphonium Bromide Semiclathrate Hydrates

  Sakura Azuma, Jin Shimada, Katsuhiko Tsunashima, Takeshi Sugahara, Atsushi Tani, Takayuki Hirai

  American Chemical Society (ACS), Jun. 2022, Journal of Chemical & Engineering Data, 67(6) (6), 1415 - 1420

  Scientific journal


• Limosilactobacillus (Lactobacillus) fermentum ALAL020, a Probiotic Candidate Bacterium, Produces a Cyclic Dipeptide That Suppresses the Periodontal Pathogens Porphyromonas gingivalis and Prevotella intermedia

  Tomomi Kawai, Tomoko Ohshima, Takeshi Tanaka, Satoshi Ikawa, Atsushi Tani, Naoya Inazumi, Ryoichi Shin, Yukie Itoh, Karen Meyer, Nobuko Maeda

  Mar. 2022, Frontiers in Cellular and Infection Microbiology, 12, 804334, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Thermodynamic Properties of Tetra-n-butylphosphonium Dicarboxylate Semiclathrate Hydrates

  Jin Shimada, Moe Yamada, Atsushi Tani, Takeshi Sugahara, Katsuhiko Tsunashima, Yusuke Tsuchida, Takayuki Hirai

  American Chemical Society (ACS), Jan. 2022, Journal of Chemical & Engineering Data, 67(1) (1), 67 - 73, English

  [Refereed]

  Scientific journal


• Phase equilibrium temperature and dissociation enthalpy in the tri-n-butylalkylphosphonium bromide semiclathrate hydrate systems

  Jin Shimada, Masami Shimada, Takeshi Sugahara, Katsuhiko Tsunashima, Yuta Takaoka, Atsushi Tani

  Elsevier BV, Jun. 2021, Chemical Engineering Science, 236, 116514, English

  [Refereed]

  Scientific journal


• ESR and Radiocarbon Dating of Gut Strings from Early Plucked Instruments

  Sumiko Tsukamoto, Taro Takeuchi, Atsushi Tani, Yosuke Miyairi, Yusuke Yokoyama

  {MDPI} {AG}, Jan. 2020, Methods and Protocols, 3(1) (1), 13 - 13

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• 2-4-4 Difference of guest molecule interaction on TBA / TBP bromide hydrates

  MIWA Yasuhiro, SHIMADA Jin, NAGAHAMA Tomoki, SATO Harumi, TANI Atsushi, TAKEYA Kei

  Tetrabutylammonium/phosphonium bromide (TBAB/TBPB) hydrates, ionic clathrate hydrates were investigated by low frequency Raman scattering including in Terahertz (THz) region. The peak position and full-width-half-maximum (FWHM) of each hydrate were compared in the region below 3 THz (100 cm^-1) . The position of the peak considered to be the translational movement of the anion was about 65 cm^-1 in TBAB, which was clearly higher than TBPB. This is considered to be due to difference of contribution to center cation in atomic charge distribution. In addition, FWHM is may be due to the crystal structure and reflects the interaction between the anion and the water molecule. Direct observation of intermolecular interactions using spectroscopy in the terahertz region can be used to assess the influence of guest molecule differences on material characteristics.

  The Japan Institute of Energy, Jul. 2019, Proceedings of the Annual Conference of The Japan Institute of Energy, 28, 58 - 59, Japanese


• Pluto’s ocean is capped and insulated by gas hydrates

  Shunichi Kamata, Francis Nimmo, Yasuhito Sekine, Kiyoshi Kuramoto, Naoki Noguchi, Jun Kimura, Atsushi Tani

  Springer Science and Business Media {LLC}, Jun. 2019, Nature Geoscience, 12(6) (6), 407 - 410

  [Refereed]

  Scientific journal


• Follow-up Study of ROOT Program: Growth of High School Students in Basic Stage and Practical Stage

  MURANAKA YASUKO, MAIYA KIYOSHI, TANI ATSUSHI, ITOH MASAYUKI, EBINA KUNIYOSHI

  2017 年度より神戸大学は、兵庫県立大学、関西学院大学、甲南大学と ROOT と名付けたグローバルサイエンスキャンパス事業に取り組んでいる。そのプログラムでは強い知的好奇心と探究心を備えた高校生に根源的な問を喚起するユニットをはじめとする「科学力養成プログラム」と科学英語を学ばせる「国際性導入プログラム」を基礎ステージで高校生に提供し、その中から選抜された高校生に実践ステージで大学教員が研究指導を行い、ワ
  シントン大学でポスター発表させる。2017 年度 ROOT プログラムに参加した 45 名の高校生を対象にインタビュー、ルーブリック評価、レジリエンス尺度、質問紙調査を用いて到達度、満足度などを調べた。その結果、基礎ステージで大半の受講生が満足できる水準に到達していること、実践ステージで 3 つのカテゴリーで有意な上昇をしていることが確かめられた

  神戸大学大学教育推進機構, Mar. 2019, 大学教育研究, (27) (27), 139 - 158, Japanese

  [Refereed]

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Methodology of clathrate hydrate formation experiment and isotopic measurement of guest gas under the condition of ice crust/internal ocean boundary of Enceladus and Europe

  Kudo Kushi, Tani Atsushi, Nagasawa Makoto, Yamada Keita, Yoshida Naohiro

  氷衛星・氷惑星から噴出するプルームには、H2やCO2、CH4等の微量ガスが含まれる事が明らかにされてきたことから、微生物による生命活動の可能性が注目されている。しかし、岩石での地質化学的な微量ガスの生成の寄与が不明瞭であることから、微量ガスを検知するだけでは、微生物による生命活動を断定しきれない。この現状を踏まえ、本研究は、氷衛星・氷惑星の環境を模した室内実験から、主にCH4の同位体分別の素過程を評価し、生物起源のガスの寄与の定量的な推定を行うことを目的とする。本研究では、氷地殻–内部海に存在し、プルーム放出までの過程に影響を及ぼすクラスレートハイドレートに着目する。実験では、エンケラドス、および、エウロパの条件における同位体分別を調べる。実験に際し、50 MPa まで圧力を保持できるバッジ式特殊環境ハイドレート生成装置の開発を行った。本発表では、装置、および、測定法の詳細についての議論を中心に行う。

  GEOCHEMICAL SOCIETY OF JAPAN, 2019, Abstracts of Annual Meeting of the Geochemical Society of Japan, 66, 163, Japanese


• Phase equilibrium relations of semiclathrate hydrates based on tetra-n-butylphosphonium formate, acetate, and lactate

  SHIMADA Jin, SHIMADA Masami, SUGAHARA Takeshi, TSUNASHIMA Katsuhiko, TANI Atsushi, TSUCHIDA Yusuke, MATSUMIYA Masahiko

  Aug. 2018, Journal of Chemical Engineering Data, 63(9) (9), 3615 - 3620, English

  [Refereed]

  Scientific journal


• Deep-biosphere methane production stimulated by geofluids in the Nankai accretionary complex.

  Akira Ijiri, Fumio Inagaki, Yusuke Kubo, Rishi R Adhikari, Shohei Hattori, Tatsuhiko Hoshino, Hiroyuki Imachi, Shinsuke Kawagucci, Yuki Morono, Yoko Ohtomo, Shuhei Ono, Sanae Sakai, Ken Takai, Tomohiro Toki, David T Wang, Marcos Y Yoshinaga, Gail L Arnold, Juichiro Ashi, David H Case, Tomas Feseker, Kai-Uwe Hinrichs, Yojiro Ikegawa, Minoru Ikehara, Jens Kallmeyer, Hidenori Kumagai, Mark A Lever, Sumito Morita, Ko-Ichi Nakamura, Yuki Nakamura, Manabu Nishizawa, Victoria J Orphan, Hans Røy, Frauke Schmidt, Atsushi Tani, Wataru Tanikawa, Takeshi Terada, Hitoshi Tomaru, Takeshi Tsuji, Urumu Tsunogai, Yasuhiko T Yamaguchi, Naohiro Yoshida

  Microbial life inhabiting subseafloor sediments plays an important role in Earth's carbon cycle. However, the impact of geodynamic processes on the distributions and carbon-cycling activities of subseafloor life remains poorly constrained. We explore a submarine mud volcano of the Nankai accretionary complex by drilling down to 200 m below the summit. Stable isotopic compositions of water and carbon compounds, including clumped methane isotopologues, suggest that ~90% of methane is microbially produced at 16° to 30°C and 300 to 900 m below seafloor, corresponding to the basin bottom, where fluids in the accretionary prism are supplied via megasplay faults. Radiotracer experiments showed that relatively small microbial populations in deep mud volcano sediments (102 to 103 cells cm-3) include highly active hydrogenotrophic methanogens and acetogens. Our findings indicate that subduction-associated fluid migration has stimulated microbial activity in the mud reservoir and that mud volcanoes may contribute more substantially to the methane budget than previously estimated.

  Jun. 2018, Science advances, 4(6) (6), eaao4631, English, International magazine

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Peroxynitric acid (HOONO2) is the active component in cryo-preserved plasma- treated water with the reduced-pH method for effective and safety disinfection

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, KAWASHITA Norihito, TANI Atsushi

  Aug. 2017, Proceedings of the 23rd International Symposium on Plasma Chemistry, English

  International conference proceedings


• An electron spin resonance (ESR) study on effects of γ-ray irradiation on basalt fiber

  SAKANOUE Masafumi, TANI Atsushi, FUKAZAWA Hiroshi

  Mar. 2017, Advances in ESR Applications, 33, 4 - 8, Japanese

  [Refereed]

  Scientific journal


• 2-4-3 Water/Tetrahydrofuran hydrate partition coefficient for ammonium ion

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho

  Although it is known that ammonium ion is replaced with a part of water cages of clathrate hydrate, it isn't known how much amount of ammonium ions are included into clathrate hydrate with the formation. We investigated how much amount of ammonium ions were included into clathrate hydrate with its formation. Tetrahydrofuran (THF) hydrate, as an analogue for CH₄ and CO₂ hydrate, was formed in a solution of THF with ammonium chloride. The concentration of ammonium ion in THF hydrate (CS) was determined and compared with the initial concentration of ammonium ion (C₀). The ratio of C_S to C₀ (K=C_S/C₀) was determined when the volume ratio of formed solid to liquid was less than 0.9. The K value was 0.28 approximately when C₀ wasn't more than 10 mmol/L. This value was about three times more than that value when ice was formed in an ammonium ion solution.

  The Japan Institute of Energy, 2017, Proceedings of the Annual Conference of The Japan Institute of Energy, 26, 54 - 55, Japanese


• Physicochemical properties of bactericidal plasma-treated water

  Satoshi Ikawa, Atsushi Tani, Yoichi Nakashima, Katsuhisa Kitano

  Oct. 2016, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 49(42) (42), 425401, English

  [Refereed]

  Scientific journal


• Biogeochemical Cycle of Methanol in Anoxic Deep-Sea Sediments

  Katsunori Yanagawa, Atsushi Tani, Naoya Yamamoto, Akihiro Hachikubo, Akihiro Kano, Ryo Matsumoto, Yohey Suzuki

  Jun. 2016, MICROBES AND ENVIRONMENTS, 31(2) (2), 190 - 193, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Ion-exchange chromatographic analysis of peroxynitric acid

  Yoichi Nakashima, Satoshi Ikawa, Atsushi Tani, Katsuhisa Kitano

  Jan. 2016, Journal of Chromatography A, 1431, 89 - 93, English

  [Refereed]

  Scientific journal


• Evaluation of fatty acid oxidation by reactive oxygen species induced in liquids using atmospheric-pressure nonthermal plasma jets

  Atsushi Tani, Satoshi Fukui, Satoshi Ikawa, Katsuhisa Kitano

  Oct. 2015, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 48(42) (42), 424010, English

  [Refereed]

  Scientific journal


• Single aliquot regenerative dose method for ESR dating using X-ray irradiation and preheat

  Sumiko Tsukamoto, Shin Toyoda, Atsushi Tani, Frank Oppermann

  Oct. 2015, RADIATION MEASUREMENTS, 81, 9 - 15, English

  [Refereed]

  Scientific journal


• Identification and Characterization of Oxidative Metabolites of 1-Chloropyrene

  Kensaku Kakimoto, Haruna Nagayoshi, Naoya Inazumi, Atsushi Tani, Yoshimasa Konishi, Keiji Kajimura, Takeshi Ohura, Takeshi Nakano, Ning Tang, Kazuichi Hayakawa, Akira Toriba

  Sep. 2015, CHEMICAL RESEARCH IN TOXICOLOGY, 28(9) (9), 1728 - 1736, English

  [Refereed]

  Scientific journal


• Diagnosis of superoxide anion radical induced in liquids by atmospheric-pressure plasma using superoxide dismutase

  Atsushi Tani, Satoshi Fukui, Satoshi Ikawa, Katsuhisa Kitano

  Jan. 2015, JAPANESE JOURNAL OF APPLIED PHYSICS, 54(1) (1), 01AF01, English

  [Refereed]

  Scientific journal


• Variety of intermolecular reactions via active species in gas hydrates

  Atsushi Tani, Motoi Oshima

  Japan Society of High Pressure Science and Technology, Dec. 2014, Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 24(4) (4), 258 - 264, Japanese

  [Refereed]

  Scientific journal


• Synergistic Formation of Carboxyl and Methyl Radicals in CO2 + Methane Mixed Gas Hydrates

  Motoi Oshima, Kazuma Kitamura, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki

  Nov. 2014, JOURNAL OF PHYSICAL CHEMISTRY B, 118(47) (47), 13435 - 13439, English

  [Refereed]

  Scientific journal


• Blue-Colored tert-Butylamine Clathrate Hydrate

  Atsushi Tani, Satoshi Koyama, Yusuke Urabe, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki

  Nov. 2014, JOURNAL OF PHYSICAL CHEMISTRY B, 118(47) (47), 13409 - 13413, English

  [Refereed]

  Scientific journal


• Reactions of HOCO radicals through hydrogen-atom hopping utilizing clathrate hydrates as an observational matrix

  Oshima, M., Tani, A., Sugahara, T., Kitano, K., Ohgaki, K.

  2014, Physical Chemistry Chemical Physics, 16(8) (8), 3792 - 3797, English

  [Refereed]

  Scientific journal


• Radiation-induced radicals in CO2 and CO2-CH4 hydrates

  Oshima Motoi, Tani Atsushi, Sugahara Takeshi, Kitano Katsuhisa, Ohgaki Kazunari

  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, 2012, Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2012(0) (0), 10 - 10, Japanese

  [Refereed]


• Intermolecular hydrogen transfer between guest species in small and large cages of methane + propane mixed gas hydrates

  Sugahara, T., Kobayashi, Y., Tani, A., Inoue, T., Ohgaki, K.

  2012, Journal of Physical Chemistry A, 116(10) (10), 2405 - 2408, English

  [Refereed]

  Scientific journal


• ESR study of the molecular orientation and dynamics of stable organic radicals included in the 1-D organic nanochannels of 2,4,6-tris-4- (chlorophenoxy)-1,3,5-triazine

  Kobayashi, H., Asaji, T., Tani, A.

  2012, Magnetic Resonance in Chemistry, 50(3) (3), 221 - 228, English

  [Refereed]

  Scientific journal


• Intermolecular hydrogen transfer in isobutane hydrate

  Kobayashi, N., Minami, T., Tani, A., Nakagoshi, M., Sugahara, T., Takeya, K., Ohgaki, K.

  2012, Energies, 5(6) (6), 1705 - 1712, English

  [Refereed]

  Scientific journal


• Free radicals induced in aqueous solution by non-contact atmospheric-pressure cold plasma

  Tani, A., Ono, Y., Fukui, S., Ikawa, S., Kitano, K.

  2012, Applied Physics Letters, 100(25) (25), 254103, English

  [Refereed]

  Scientific journal


• Radiation-induced radicals in hydrated magnesium sulfate

  Tani, A., Hasegawa, N., Norizawa, K., Yada, T., Ikeya, M.

  2012, Radiation Measurements, 47(9) (9), 890 - 893, English

  [Refereed]

  Scientific journal


• In-situ Raman Observation on Aqueous Solution around Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate

  Motoi Oshima, Shunsuke Hashimoto, Wataru Shimada, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki

  To confirm the hydrate-like structures in tetra-n-butyl ammonium bromide (hereafter, TBAB) aqueous solution with tetragonal TBAB hydrates, the TBAB hydrate crystal and its stoichiometric aqueous solution at equilibrium state and during dissociation process have been investigated by means of in-situ Raman micro-spectroscopic observation. At equilibrium state and during dissociation process, the conformations of TBAB changed drastically around the surface between hydrate and aqueous phase, and the hydrate-like conformations did not appear in aqueous phase near the crystal. On the other hand, a broad signal in aqueous phase gradually changed during hydrate dissociation and then it converged after about 45 minutes. This implies the existence of residual that exhibits relatively slow structural relaxation in aqueous phase.

  Hokkaido University Press, Apr. 2011, Physics and Chemistry of Ice 2010, 2010, 141 - 146, English

  [Refereed]

  Scientific journal


• In-situ ESR Observation of Free Radicals in Gas Hydrates under High Pressure

  Atsushi Tani, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki, Kei Takeya

  Methyl radical in gamma-irradiated methane hydrate with heavy water (D2O) has been investigated by electron spin resonance (ESR) using the sample tube designed for in-situ high-pressure measurements. Methyl radical, hydrogen atom, and deuterium atom were observed at 77 K. Hydroxyl radical (OH) was not detected and it is concordant with the previous results on gamma-irradiated methane hydrate with H2O. Although small signals of both hydrogen and deuterium atoms were found at 120 K, only methyl radicals remained at 210 K. The decay of the methyl radical was relatively slow under the pressurization with methane. The decay mechanism of the methyl radical partially depends on thermodynamic stability of methane hydrate.

  Hokkaido University Press, Apr. 2011, Physics and Chemistry of Ice 2010, 2010, 273 - 276, English

  [Refereed]

  Scientific journal


• Millennial-scale oscillations of the westerly jet path during the last glacial period

  Nagashima, K., Tada, R., Tani, A., Sun, Y., Isozaki, Y., Toyoda, S., Hasegawa, H.

  2011, Journal of Asian Earth Sciences, 40(6) (6), 1214 - 1220, English

  [Refereed]

  Scientific journal


• Remote detection and identification of CO 2 dissolved in water using a raman lidar system

  Somekawa, T., Tani, A., Fujita, M.

  2011, Applied Physics Express, 4(11) (11), 112401, English

  [Refereed]

  Scientific journal


• Relaxation of crystal structure in TBAB semi-clathrate hydrates dissociation process

  Motoi Oshima, Shunsuke Hashimoto, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki, Wataru Shimada

  2010, Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2010, 183, English

  [Refereed]

  Scientific journal


• Direct aqueous injection analysis of trace compounds in water with proton-transfer-reaction mass spectrometry (PTR-MS)

  Jürschik, S., Tani, A., Sulzer, P., Haidacher, S., Jordan, A., Schottkowsky, R., Hartungen, E., Hanel, G., Seehauser, H., Märk, L., Märk, T.D.

  2010, International Journal of Mass Spectrometry, 289(2-3) (2-3), 173 - 176, English

  [Refereed]

  Scientific journal


• Preparation and characterization of new inclusion compounds using stable nitroxide radicals and an organic 1-D nanochannel as a template

  Kobayashi, H., Asaji, T., Tani, A.

  2010, Materials, 3(6) (6), 3625 - 3641, English

  [Refereed]

  Scientific journal


• Memory effect on semi-clathrate hydrate formation: A case study of tetragonal tetra-n-butyl ammonium bromide hydrate

  Oshima, M., Shimada, W., Hashimoto, S., Tani, A., Ohgaki, K.

  2010, Chemical Engineering Science, 65(20) (20), 5442 - 5446, English

  [Refereed]

  Scientific journal


• Characterization of the eolian dust sources by ESR of impurity centers in quartz

  Y. Yamamoto, S. Toyoda, Y. Isozaki, Y. Sun, R. Tada, K. Nagasima, A. Tani

  Mar. 2009, Advances in ESR Applications, 25, 7 - 12, Japanese

  [Refereed]


• 放射線により生成するメタンハイドレート中の微量メタノール ～メタンハイドレートの生成年代決定を目指して～

  村山 達郎, 谷 篤史

  メタンハイドレート（MH）は、水分子が水素結合により籠を作り、内部に１分子のメタンを捕獲した構造をしており、深海底の堆積物中や永久凍土層などに存在している。MHの生成年代については、129Iを用いた方法などで行われている（Fehn et al., 2000）が、この方法はMHそのものを分析し、生成年代の決定を行っているわけではない。そこで、我々は海底のMHが堆積物中に存在し、堆積物に含まれる放射性同位体元素からの自然放射線を受ける環境にあることに着目し、化学反応によって生成するMH中の微量成分を分析することで生成年代決定を目指している。我々は放射線によってラジカル反応が起こり、メタノールが生成しているのではないかと考えた。本研究では生成年代決定を目指すための基礎実験として合成したMH用い、放射線照射によりメタノールがどのくらい生成するのかを検証した。

  日本地球化学会, 2009, 日本地球化学会年会要旨集, 56, 140 - 140, Japanese


• Chemical composition of micro inclusion in Dome Fuji ice core, Antarctica:Finding of liquid sulfate as a micron sized inclusion

  Sakurai Toshimitsu, Iizuka Yoshinori, Tani Atsushi, Uchida Tsutomu, Hondoh Takeo

  The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, 2009, Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2009, 82 - 82, Japanese


• 石英中の不純物中心のESR信号を用いた風送塵起源地の分別

  山本 裕哉, 豊田 新, 磯崎 裕子, Sun Youbin, 多田 隆治, 長島 佳菜, 谷 篤史, 五十嵐 康人

  過去の気候変動を知るためにそれぞれの時代における大気循環システムの再現は重要な課題である。それを調べるため、過去の風送塵が研究されてきた。風送堆積物中の石英のE1'中心の信号強度によって示される酸素空孔量(Toyoda and Ikeya, 1991)の測定から、最終氷期と完新世とでその起源が異なることが報告された(成瀬他1997; Ono et al., 1998; Toyoda and Naruse 2002）。この後、石英中の酸素空孔量に加え、石英の結晶化度を指標として日本海堆積物の起源地の変動と気候変動との相関について議論された （Nagashima et al., 2007）。一方、石英中にはE1'中心のほかに不純物中心も観測される。今回、これまで用いられてきた指標に加えて不純物中心を用いる可能性について検討した。

  一般社団法人日本地球化学会, 2009, 日本地球化学会年会要旨集, 56(0) (0), 22 - 22, Japanese

  [Refereed]


• Characterization of the eolian dust sources by ESR of impurity centers in quartz

  Toyoda Shin, Yamamoto Yuya, Isozaki Yuko, Sun Youbin, Tada Ryuji, Nagashima Kana, Tani Atsushi, Igarashi Yasuhito

  The Geological Society of Japan, 2009, Annual Meeting of the Geological Society of Japan, 2009(0) (0), 561 - 561, Japanese


• Preparation and characterization of inclusion compounds using TEMPOL and an organic 1-D nanochannel as a template

  Kobayashi, H., Ueda, T., Miyakubo, K., Eguchi, T., Tani, A.

  2009, Molecular Crystals and Liquid Crystals, 506(1) (1), 150 - 167, English

  [Refereed]

  Scientific journal


• Provenance changes of eolian dust at lingtai section in the Chinese loess plateau since 7 Ma and its implication for desert development in East Asia

  Y. Isozaki, R. Tada, Y. Sun, K. Nagashima, H. Zheng, S. Toyoda, A. Tani

  It is suggested that the uplift of Himalaya-Tibetan Plateau enhanced interior aridity in East Asia and resulted in development of middle latitude gobi and sandy deserts and accumulation of the eolian sediments in the Chinese Loess Plateau. Therefore, estimation of the provenance for eolian sediments in the Chinese Loess Plateau is critical to reconstruct the environmental changes in East Asia and their relation to the Himalaya-Tibetan Plateau uplift. We recently developed a new provenance tracing method by using a combination of Electron Spin Resonance (ESR) signal intensity and Crystallinity Index (CI) of quartz, and demonstrated that fine fraction of the surface sediments from nine major deserts in East Asia could be distinguished one another on the ESR signal intensity versus CI diagram. Here, we measured ESR signal intensity and CI of quartz in fine fractions of samples covering the last 7 Ma obtained from Lingtai section in the central Chinese Loess Plateau, and compared the results with those of the surface samples from nine major deserts in East Asia. The results suggest that the provenance of fine fraction of the eolian sediment in Lingtai section changed at 4.3, 2.1, 1.4, 1.1, 0.8 and 0.4 Ma. During 7 to 4.3 Ma, the dust might be have been supplied from Precambrian to Paleozoic metamorphic and granitic rocks and granite exposed in the present central to eastern part of the Tian Shan Mountains. The contribution from the Taklimakan desert appeared at 4.3 Ma, increased drastically at 1.1 Ma, and persisted till 0.8 Ma, whereas the main source of detrital material to the Taklimakan desert might have changed from eastern part of the Kunlun and the Altyn Mountains to western part of the Kunlun and the Tian Shan Mountains. During 0.8 to 0.4 Ma, contribution from the Badain Juran desert gradually increased. Finally, contribution from the Tengger desert appeared from 0.4 to 0 Ma. Together with tectonic evidences from literatures, the provenance changes from 4.3 to 0.8 Ma seem to reflect uplift of the Tian Shan and the Kunlun Mountains and consequent formation of the Taklimakan desert, whereas the change at 0.4 Ma may reflect uplift of the Qilian Mountains although formation of mountain glaciers could be an alternative possibility. These provenance changes will provide important constraints not only on the development of arid areas and evolution of monsoon but also on the uplift and erosion of mountains in East Asia.

  Mar. 2008, Climate of the Past Discussions, 4, 335 - 374, English

  [Refereed]


• Tracing the provenance of fine-grained dust deposited on the central Chinese Loess Plateau

  Sun, Y., Tada, R., Chen, J., Liu, Q., Toyoda, S., Tani, A., Ji, J., Isozaki, Y.

  2008, Geophysical Research Letters, 35(1) (1)

  [Refereed]

  Scientific journal


• Hydrogen transfer from guest molecule to radical in adjacent hydrate-cages

  Kazunari Ohgaki, Kentaro Nakatsuji, Kei Takeya, Atsushi Tani, Takeshi Sugahara

  2008, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 10(1) (1), 80 - 82, English

  [Refereed]

  Scientific journal


• ESR study of molecular dynamics and orientation of TEMPO included in organic 1-D nanochannel

  Kobayashi, H., Ueda, T., Miyakubo, K., Eguchi, T., Tani, A.

  2008, Physical Chemistry Chemical Physics, 10(9) (9), 1263 - 1269, English

  [Refereed]

  Scientific journal


• Electron spin resonance study on gamma-ray-induced radical species in ethylene hydrate

  Kei Takeya, Takeshi Sugahara, Kazunari Ohgaki, Atsushi Tani

  Sep. 2007, RADIATION MEASUREMENTS, 42(8) (8), 1301 - 1306, English

  [Refereed]

  Scientific journal


• Electron spin resonance study on gamma-ray-induced ethyl radical in ethane hydrate

  Kei Takeya, Kouhei Nango, Takeshi Sugahara, Kazunari Ohgaki, Atsushi Tani, Hironori Ito, Michio Okada, Toshio Kasa

  May 2007, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 46(5A) (5A), 3066 - 3070, English

  [Refereed]

  Scientific journal


• Orbital- and millennial-scale variations in Asian dust transport path to the Japan Sea

  Kana Nagashima, Ryuji Tada, Hiroyuki Matsui, Tomohisa Irino, Atsushi Tani, Shin Toyoda

  Apr. 2007, Palaeogeography, Palaeoclimatology, Palaeoecology, 247(1-2) (1-2), 144 - 161, English

  [Refereed]

  Scientific journal


• Development of in situ low temperature infrared spectroscopy for a study of methane hydrate

  K. Ishikawa, A. Tani, S. Nakashima

  2007, Physics and Chemistry of Ice, 233 - 239

  [Refereed]

  International conference proceedings


• Spin-spin interaction of TEMPO molecular chains formed in an organic one-dimensional nanochannel as studied by electron spin resonance (ESR)

  Kobayashi, H., Ueda, T., Miyakubo, K., Eguchi, T., Tani, A.

  2007, Bulletin of the Chemical Society of Japan, 80(4) (4)

  [Refereed]

  Scientific journal


• Distinguishing the sources of Asian dust based on electron spin resonance signal intensity and crystallinity of quartz

  Sun, YB, Tada, RJ, Chen, J, Chen, HZ, Toyoda, S, Tani, A, Isozaki, Y, Nagashima, K, Hasegawa, H, Ji, JF

  2007, Atmospheric Environment, 41(38) (38)

  [Refereed]

  Scientific journal


• Contribution of aeolian dust in Japan Sea sediments estimated from ESR signal intensity and crystallinity of quartz

  Nagashima, K., Tada, R., Tani, A., Toyoda, S., Sun, Y., Isozaki, Y.

  2007, Geochemistry, Geophysics, Geosystems, 8(2) (2)

  [Refereed]

  Scientific journal


• Transformation of gamma-ray-formed methyl radicals in methane hydrate at 10 MPa

  Kenji Ishikawa, Atsushi Tani, Takahiro Otsuka, Satoru Nakashima

  Jan. 2007, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 46(1) (1), 455 - 460, English

  [Refereed]

  Scientific journal


• Thermal stability of methyl radical in gamma-ray irradiated methane hydrate under different pressure from 0.003 to 1 MPa

  A. Tani, K. Ishikawa, K. Takeya

  Aug. 2006, RADIATION MEASUREMENTS, 41(7-8) (7-8), 1040 - 1044, English

  [Refereed]

  Scientific journal


• Preliminary study of the application of natural olivine in Cenozoic dating

  Masashi Takada, Atsushi Tani, Aiko Shimada

  Aug. 2006, RADIATION MEASUREMENTS, 41(7-8) (7-8), 982 - 986, English

  [Refereed]

  Scientific journal


• プロパンハイドレート内に誘起されたラジカルの安定性に関する研究

  仲辻 健太郎, 竹家 啓, 谷 篤史, 菅原 武, 大垣 一成

  公益社団法人 化学工学会, 2006, 化学工学会 研究発表講演要旨集, 2006, 596 - 596, Japanese


• 誘起ラジカル種を用いたガスハイドレート分解メカニズム研究

  竹家 啓, 菅原 武, 谷 篤史, 大垣 一成

  公益社団法人 化学工学会, 2006, 化学工学会 研究発表講演要旨集, 2006, 719 - 719, Japanese


• Activation energy of methyl radical decay in methane hydrate

  K Takeya, K Nango, T Sugahara, K Ohgaki, A Tani

  Nov. 2005, JOURNAL OF PHYSICAL CHEMISTRY B, 109(44) (44), 21086 - 21088, English

  [Refereed]

  Scientific journal


• Nitrogen dioxide (NO2) created by gamma-rays in Antarctic ice and rime ice

  T Yada, K Norizawa, A Tani, M Ikeya

  Feb. 2005, APPLIED RADIATION AND ISOTOPES, 62(2) (2), 255 - 259, English

  [Refereed]

  Scientific journal


• ESR investigation of gamma-irradiated natural methane hydrate from blake ridge diapir, off east north America in ODP leg 164

  K Takeya, A Tani, T Yada, M Ikeya

  Feb. 2005, APPLIED RADIATION AND ISOTOPES, 62(2) (2), 371 - 374, English

  [Refereed]

  Scientific journal


• Construction of imaging system for wide-field-range ESR spectra using localized microwave field and its case study of crystal orientation in suspension of copper sulfate pentahydrate (CuSO4 center dot 5H(2)O)

  A Tani, T Ueno, C Yamanaka, M Katsura, M Ikeya

  Feb. 2005, APPLIED RADIATION AND ISOTOPES, 62(2) (2), 343 - 348, English

  [Refereed]

  Scientific journal


• Preparation and characterization of a new inclusion compound with a 1D molecular arrangement of organic radicals using a one-dimensional organic homogeneous nanochannel template

  Kobayashi, H, Ueda, T, Miyakubo, K, Toyoda, J, Eguchi, T, Tani, A

  2005, Journal of Materials Chemistry, 15(8) (8)

  [Refereed]

  Scientific journal


• Electron spin resonance study on gamma-ray-induced methyl radicals in methane hydrates

  K Takeya, A Tani, T Yada, M Ikeya, K Ohgaki

  Jan. 2004, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 43(1) (1), 353 - 357, English

  [Refereed]

  Scientific journal


• Spatial distribution and formation of nitrate radical NO32- in Antarctic calcitic evaporates

  H Sato, A Tani, AJ Fielding, SS Eaton, GR Eaton, NE Whitehead, M Ikeya

  2004, APPLIED MAGNETIC RESONANCE, 26(4) (4), 601 - 616, English

  [Refereed]

  Scientific journal


• Electron spin resonance of ascorbyl (vitamin C) radicals in synthetic CaCO3 by UV irradiation

  H Sato, A Tani, M Ikeya

  Feb. 2003, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 42(2A) (2A), 428 - 433, English

  [Refereed]

  Scientific journal


• ESR dating of fossil shells in the Lützow-Holm Bay region, East Antarctica

  Takada, M., Tani, A., Miura, H., Moriwaki, K., Nagatomo, T.

  2003, Quaternary Science Reviews, 22(10-13) (10-13)

  [Refereed]

  Scientific journal


• P-93 Electron Spin Resonance (ESR) Image of Radical Concentration in Calyptogena

  TANI Atsushi, UENO Takehiro

  The Geological Society of Japan, 2002, Annual Meeting of the Geological Society of Japan, 2002, 253 - 253, Japanese


• Optically stimulated luminescence (OSL) study of synthetic stishovite

  A. Tani, C. Yamanaka, M. Ikeya, O. Ohtaka, M. Takada, T. Katsura

  Elsevier Science Ltd, Dec. 2000, Radiation Measurements, 32(5) (5), 473 - 477, English

  [Refereed]

  Scientific journal


• ESR study of a new electron center in synthetic stishovite, a high-pressure polymorph of silica

  A Tani, C Yamanaka, M Ikeya, O Ohtaka, T Katsura

  2000, APPLIED MAGNETIC RESONANCE, 18(4) (4), 559 - 564, English

  [Refereed]

  Scientific journal


• A new method for the estimation of cooling and denudation rates using paramagnetic centers in quartz: A case study on the Eldzhurtinskiy Granite, Caucasus

  Grün, R., Tani, A., Gurbanov, A., Koshchug, D., Williams, I., Braun, J.

  1999, Journal of Geophysical Research B: Solid Earth, 104(B8) (B8)

  [Refereed]

  Scientific journal


• Thermal history of archaeological objects, studied by electron spin resonance

  Jens Bartoll, Atsushi Tani

  Last, Springer Verlag, 1998, Naturwissenschaften, 85(10) (10), 474 - 481, English

  [Refereed]

  Scientific journal


• Pulsed charge model of fault behavior producing seismic electric signals (SES)

  M Ikeya, S Takaki, H Matsumoto, A Tani, T Komatsu

  Jun. 1997, JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS, 7(3) (3), 153 - 164, English

  [Refereed]

  Scientific journal


• Total dose (TD) formula for uranium saturation-uptake model for ESR and TL dating

  M Ikeya, H Ochiai, A Tani

  Apr. 1997, RADIATION MEASUREMENTS, 27(2) (2), 339 - 343, English

  [Refereed]

  Scientific journal


• Pulsed ESR measurements on fossil teeth

  R Grun, H Kohno, A Tani, C Yamanaka, M Ikeya, HP Huang

  Apr. 1997, RADIATION MEASUREMENTS, 27(2) (2), 425 - 431, English

  [Refereed]

  Scientific journal


• ESR microscopy of fossil teeth

  T Oka, R Grun, A Tani, C Yamanaka, M Ikeya, HP Huang

  Apr. 1997, RADIATION MEASUREMENTS, 27(2) (2), 331 - 337, English

  [Refereed]

  Scientific journal


• ESR study of thermal history and dating of a stone tool

  A Tani, J Bartoll, M Ikeya, K Komura, H Kajiwara, S Fujimura, T Kamada, Y Yokoyama

  1997, APPLIED MAGNETIC RESONANCE, 13(3-4) (3-4), 561 - 569, English

  [Refereed]

  Scientific journal


• ESR dating of geological fault with a new isochrone method granite fractured on the earthquake in 1995

  A Tani, H Kohno, C Yamanaka, M Ikeya

  Nov. 1996, APPLIED RADIATION AND ISOTOPES, 47(11-12) (11-12), 1423 - 1426, English

  [Refereed]

  Scientific journal


• ESR investigations of burnt soil

  J Bartoll, A Tani, M Ikeya, T Inada

  1996, APPLIED MAGNETIC RESONANCE, 11(3-4) (3-4), 577 - 586, English

  [Refereed]

  Scientific journal


• ELECTRON-SPIN-RESONANCE ISOCHRONE DATING OF FRACTURE AGE - GRAIN-SIZE DEPENDENCE OF DOSE-RATES FOR FAULT GOUGE

  M IKEYA, A TANI, C YAMANAKA

  Mar. 1995, JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 34(3A) (3A), L334 - L337, English

  [Refereed]

  Scientific journal

• Sterilization by peroxynitric acid generated in plasma-treated water

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2023, 静電気学会誌, 47(6) (6)


• プラズマ誘起液中化学反応場の反応速度論的な理解

  北野勝久, 井川聡, 中島陽一, 横山高史, 谷篤史

  2019, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 66th


• プラズマ誘起液中化学反応場の反応速度論的な理解

  北野勝久, 井川聡, 中島陽一, 横山高史, 谷篤史

  2019, 応用物理学会秋季学術講演会講演予稿集(CD-ROM), 80th


• 2-4-4 Difference of guest molecule interaction on TBA / TBP bromide hydrates

  三輪泰大, 嶋田仁, 長濱朋輝, 佐藤春実, 谷篤史, 竹家啓

  2019, 日本エネルギー学会大会講演要旨集(Web), 28


• THz-TDS Study on Tetrabutylammonium Bromide Hydrate

  Yasuhiro Miwa, Keisuke Matsumura, Kei Takeya, Atsushi Tani

  29 Oct. 2018, 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2018-September, English

  [Refereed]

  Summary national conference


• 過硝酸溶液を利用した世界初の殺菌手法

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2018, 日本防菌防黴学会年次大会要旨集, 45th


• プラズマ誘起液中化学反応場における液中化学種の診断

  KITANO Katsuhisa, TANI Atsushi, IKAWA Satoshi, NAKASHIMA Yoichi

  Dec. 2017, プラズマエレクトロニクス分科会会報, 67, Japanese

  Introduction scientific journal


• 歯周病原菌に対するLactobacillus属細菌により産生される抗菌成分の同定(Determination of the antibacterial constituents produced by lactobacilli against a periodontal pathogen)

  河井 智美, 大島 朋子, 新 良一, 井川 聡, 谷 篤史, 稲角 直也, 前田 伸子

  日本細菌学会, Feb. 2017, 日本細菌学雑誌, 72(1) (1), 137 - 137, English


• 過硝酸溶液を用いた新しい殺菌手法の提案

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2017, 日本防菌防黴学会年次大会要旨集, 44th


• プラズマ処理水中における過硝酸の生成過程

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2017, 応用物理学会秋季学術講演会講演予稿集(CD-ROM), 78th


• Methane Hydrate(2)Origin, Exploration and Resources of Methane Hydrate

  佐藤 幹夫, 長久保 定雄, 内田 努, 谷 篤史

  日本エネルギー学会, Jul. 2016, Journal of the Japan Institute of Energy = 日本エネルギー学会誌, 95(7) (7), 572 - 585, Japanese


• Lactobacillus fermentumによって産生されたPorphyromonas gingivalisに対する抗菌物質

  河井 智美, 大島 朋子, 新 良一, 井川 聡, 谷 篤史, 稲角 直也, 水谷 武夫, 三浦 竜介, 五味 一博, 前田 伸子

  (公財)腸内細菌学会, Apr. 2016, 腸内細菌学雑誌, 30(2) (2), 96 - 96, Japanese


• 大気圧低温プラズマならびにプラズマ処理水を用いた先進的消毒技術

  北野勝久, 井川聡, 中島陽一, 谷篤史, 大島朋子, 横山高史

  2016, 日本医療・環境オゾン学会会報, 23(1) (1)


• 反応速度論に基づくプラズマ処理水殺菌活性のpH依存の物理化学機構

  北野勝久, 井川聡, 中島陽一, 横山高史, 谷篤史

  2016, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 63rd


• プラズマ誘起液中化学反応における溶液中活性種の診断

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2016, 応用物理学会秋季学術講演会講演予稿集(CD-ROM), 77th


• 殺菌力のあるプラズマ処理水生成における雰囲気ガスの重要性

  谷篤史, 井川聡, 中島陽一, 北野勝久

  2015, 電子スピンサイエンス学会年会講演要旨集, 54th


• 殺菌剤としてのプラズマ処理水

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2015, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 62nd


• ヒトチトクロームP450によるクロロピレンのin vitro代謝解析

  永吉晴奈, 柿本健作, 柿本健作, 稲角直也, 谷篤史, 小西良昌, 梶村計志, 大浦健, 中野武, 早川和一, 鳥羽陽

  2015, 環境化学討論会要旨集(CD-ROM), 24th


• HOCO-CO₂間で起こる分子間水素原子移動反応と惑星科学への応用

  大島基, 谷篤史, 北野勝久, 菅原武, 大垣一成

  2014, ESR応用計測, 30


• 消毒のための高濃度プラズマ処理水の連続生成

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2014, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 61st


• 反応速度論に基づくプラズマ処理水活性の温度依存の物理化学機構

  北野勝久, 井川聡, 中島陽一, 谷篤史

  2014, 応用物理学会秋季学術講演会講演予稿集(CD-ROM), 75th


• O12-06 分子間水素原子移動によるHOCOラジカルの分解(口頭発表セッション12(分析・実験),口頭発表)

  大島 基, 谷 篤史, 菅原 武, 大垣 一成, 北野 勝久

  日本惑星科学会, 20 Nov. 2013, 日本惑星科学会秋期講演会予稿集, 2013, "O12 - 06", Japanese


• Mechanism of Plasma Disinfection by Plasma Jet and its Applications : Physics, Chemistry, Molecular Biology in Effective Sterilization with the Reduced pH Method

  KITANO Katsuhisa, IKAWA Satoshi, TANI Atsushi, OHSHIMA Tomoko

  静電気学会, 31 May 2013, 静電気学会誌, 37(3) (3), 112 - 116, Japanese


• Characteristics of gas hydrates through observation of radical species

  谷篤史, 菅原武, 大島基, 竹家啓, 大垣一成

  31 Mar. 2013, 低温科学, 71, 187-192, Japanese

  [Refereed][Invited]

  Report research institution


• プラズマプロセスの新展開 医療応用の可能性

  北野勝久, 谷篤史, 井川聡, 大島朋子

  2013, クリーンテクノロジー, 23(2) (2)


• クラスレートハイドレートを反応場とした水素原子移動を伴うHOCO/DOCOラジカルの反応

  大島基, 谷篤史, 菅原武, 大垣一成, 北野勝久

  2013, 電子スピンサイエンス学会年会講演要旨集, 52nd


• 殺菌・消毒のためのプラズマ処理水生成と保存

  北野勝久, 井川聡, 谷篤史

  2013, 応用物理学会春季学術講演会講演予稿集(CD-ROM), 60th


• Challenge to dating of methane hydrate formation

  谷 篤史

  海洋出版, 2013, 号外地球, (62) (62), 93 - 98, Japanese


• Prospects for the development of phase equilibrium estimation of clathrate hydrates based on van der Waals & Platteeuw model - Report from the symposium at the 53rd high pressure conference of Japan-

  Uchida, T., Sugahara, T., Ohgaki, K., Tanaka, H., Takeya, S., Tani, A.

  2013, Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 23(2) (2), 141 - 147, Japanese


• Evaluation of lipid oxidation reaction toward the safety assessment of plasma medicine

  FUKUI Satoshi, TANI Atsushi, IKAWA Satoshi, KITANO Katsuhisa

  10 Dec. 2012, 電気学会研究会資料. PPT, パルスパワー研究会, 2012(108) (108), 53 - 58, Japanese


• Evaluation of lipid oxidation reaction toward the safety assessment of plasma medicine

  FUKUI Satoshi, TANI Atsushi, IKAWA Satoshi, KITANO Katsuhisa

  10 Dec. 2012, 電気学会研究会資料. PST, プラズマ研究会, 2012(85) (85), 53 - 58, Japanese


• ラジカルジェットにより液中に誘起されるラジカル種の診断

  谷篤史, 大野友輔, 福井智, 井川聡, 北野勝久

  2012, 応用物理学関係連合講演会講演予稿集(CD-ROM), 59th


• プラズマ処理水におけるラジカル活性種

  谷篤史, 福井智, 井川聡, 北野勝久

  2012, 応用物理学会学術講演会講演予稿集(CD-ROM), 73rd


• 大気圧低温プラズマによって液中に供給される一重項酸素と脂質酸化反応

  福井智, 谷篤史, 井川聡, 北野勝久

  2012, 応用物理学会学術講演会講演予稿集(CD-ROM), 73rd


• 微量CH₄を含むCO₂ハイドレート内部に誘起されるラジカル種の挙動

  大島基, 谷篤史, 北野勝久, 菅原武, 大垣一成

  2012, 高圧討論会講演要旨集, 53rd


• 大気圧プラズマにより水中へ導入される活性種の観察

  谷篤史, 福井智, 井川聡, 北野勝久

  2012, 電子スピンサイエンス学会年会講演要旨集, 51st


• Plasma Sterilization Technique for Disinfection Treatments and Its Physicochemical Model

  KITANO Katsuhisa, IKAWA Satoshi, TANI Atsushi

  化学工学会, 05 Jun. 2011, Chemical engineering of Japan, 75(6) (6), 356 - 358, Japanese


• Thermal Stability of Radicals Induced in Xenon Hydrate

  Kei Takeya, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki

  Mar. 2011, Physics and Chemistry of Ice 2010, 267-271, English

  [Refereed]

  Summary national conference


• Decay Mechanisms of Radiation-Induced Radicals in Sulfur Hexafluoride Clathrate Hydrate

  Kenji Takato, Atsushi Tani, Takeshi Sugahara, Kei Takeya, Kazunari Ohgaki

  Mar. 2011, Physics and Chemistry of Ice 2010, 261-266, English

  [Refereed]

  Summary national conference


• In-situ ESR Observation of Methyl Radical in Gamma-Irradiated Methane Hydrate Under High Pressure

  Atsushi Tani, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki, Kei Takeya

  Mar. 2011, Physics and Chemistry of Ice 2010, 273-276, English

  [Refereed]

  Summary national conference


• 大気圧低温プラズマジェットにより誘起された液中フリーラジカルを用いたプラズマ消毒治療

  北野勝久, 井川聡, 谷篤史, 大西直文

  2011, 電気学会全国大会講演論文集, 2011(7) (7)


• ガンマ線を照射したCO₂ハイドレート内部におけるラジカルの熱安定性と反応系

  大島基, 谷篤史, 北野勝久, 菅原武, 大垣一成

  2011, ESR応用計測, 28


• 放射線照射を受けたCO₂ハイドレートにおいて温度により変化するラジカルの反応

  大島基, 谷篤史, 北野勝久, 菅原武, 大垣一成

  2011, ESR応用計測, 27


• Plasma antisepsis/sterilization (11) Development of the submerged sterilization technique with plasma for medical application

  井川 聡, 谷 篤史, 北野 勝久

  日本防菌防黴学会, 10 Dec. 2010, 防菌防黴 = Journal of antibacterial and antifungal agents, 38(12) (12), 819 - 825, Japanese


• プラズマ誘起フリーラジカルによる液体殺菌

  北野勝久, 井川聡, 谷篤史, 大西直文, 浜口智志

  2010, 電気学会全国大会講演論文集, 2010(1) (1)


• プラズマ液体プロセスにおける液中イオン・ラジカル生成機構

  北野勝久, 米森星矢, 谷篤史, 井川聡, 大西直文, 荒川隆一, 浜口智志

  2010, 応用物理学関係連合講演会講演予稿集(CD-ROM), 57th


• 液体と非接触な大気圧プラズマ源を用いた液体の効果的殺菌

  北野勝久, 井川聡, 谷篤史, 大西直文

  2010, 応用物理学会学術講演会講演予稿集(CD-ROM), 71st


• プラズマ液体プロセスにおける大気イオン由来の液中活性種生成

  北野勝久, 井川聡, 米森星矢, 谷篤史, 荒川隆一, 大西直文

  2010, 応用物理学会学術講演会講演予稿集(CD-ROM), 71st


• プラズマ消毒治療のための大気圧ラジカルジェットによる効果的液体殺菌法

  北野勝久, 井川聡, 谷篤史, 大西直文

  2010, プラズマ・核融合学会年会(Web), 27th


• Generation of free radicals in liquids by low-temperature atmospheric-pressure plasmas

  KITANO Katsuhisa, TANI Atsushi, IKAWA Satoshi, OHNISHI Naofumi, HAMAGUCHI Satoshi

  05 Sep. 2009, 電気学会研究会資料. PST, プラズマ研究会, 2009(103) (103), 19 - 22, Japanese


• Bacteria inactivation by free radicals in liquid in contact with plasma

  IKAWA Satoshi, KITANO Katsuhisa, TANI Atsushi, OHNISHI Naofumi, HAMAGUCHI Satoshi

  05 Sep. 2009, 電気学会研究会資料. PST, プラズマ研究会, 2009(103) (103), 23 - 26, Japanese


• 液体のプラズマ滅菌とメカニズム

  北野勝久, 井川聡, 谷篤史, 浜口智志

  2009, 電気学会全国大会講演論文集, 2009(1) (1)


• 大気圧低温プラズマジェットを用いた液中滅菌プロセスの解明 III

  北野勝久, 井川聡, 谷篤史, 浜口智志

  2009, 応用物理学関係連合講演会講演予稿集, 56th(1) (1)


• 液中プラズマプロセスにおける液中ラジカルの電子スピン共鳴法による診断 III

  北野勝久, 谷篤史, 溝谷浩平, 井川聡, 浜口智志

  2009, 応用物理学関係連合講演会講演予稿集, 56th(1) (1)


• 液中プラズマプロセスにおける液中ラジカルの電子スピン共鳴法による診断 IV

  北野勝久, 谷篤史, 溝谷浩平, 井川聡, 大西直文, 浜口智志

  2009, 応用物理学会学術講演会講演予稿集, 70th(1) (1)


• 液中プラズマプロセスでのラジカル生成における雰囲気ガスの効果

  谷篤史, 北野勝久, 溝谷浩平, 井川聡, 浜口智志

  2009, ESR応用計測, 25


• 大気圧低温プラズマジェットを用いた液中滅菌プロセスの解明 IV

  北野勝久, 井川聡, 谷篤史, 大西直文, 浜口智志

  2009, 応用物理学会学術講演会講演予稿集, 70th(1) (1)


• 液中プラズマプロセスにおける気中・液中フリーラジカル生成

  北野勝久, 谷篤史, 井川聡, 大西直文, 荒川隆一, 浜口智志

  2009, プラズマ・核融合学会年会(Web), 26th


• 大気圧低温プラズマジェットを用いた液中ラジカル生成

  北野勝久, 谷篤史, 井川聡, 大西直文, 荒川隆一, 米森星矢, 浜口智志

  2009, 電子スピンサイエンス学会年会講演要旨集, 48th


• ひと粒でわかる?石英の供給源推定~CL,ESR分析より

  長島佳菜, 西戸裕嗣, 豊田新, 山本裕哉, 谷篤史, 五十嵐康人, 多田隆治

  河川や風によって陸上や海底へと運搬される砕屑物粒子は、その量や供給源の変化を調べることで、粒子の運搬に関わる諸現象（例えば河川流量や風の強さ、向きなど）の変動を解明することができる。そこで我々は、砕屑物粒子の供給源推定に向けた指標開発に取り組んできた。石英は地球上の様々な岩石に多く含まれ、また風化に強いという特性を持ち、運搬・堆積過程での変質を受けにくいため、供給源推定に用いるのに適している。特に我々が注目したのは、石英の結晶中の構造欠陥（不対電子や格子欠陥）や不純物元素を測定する、石英の電子スピン共鳴（Electron Spin Resonance：ESR）分析とカソードルミネッセンス（Cathodoluminescence : CL）分析である。本発表では、これらの指標が供給源推定にどれだけ有効であるのか、またSEM-CLを用いた分析で一石英粒子からの供給源推定が可能かどうかについて述べる予定である。

  一般社団法人日本地球化学会, 2009, 日本地球化学会年会講演要旨集, 56th(0) (0), 22 - 23, Japanese


• ESR Spectral Analysis of Free Radicals in Irradiated Gas Hydrates below 77 K

  Atsushi Tani, Kei Takeya, Takeshi Sugahara, Kazunari Ohgaki

  Jul. 2008, Proceedings of the 6th International Conference on Gas Hydrates, 5707, English

  Summary national conference


• 液中プラズマプロセスにおける液中ラジカルの電子スピン共鳴(ESR)法による珍断

  谷篤史, 北野勝久, 溝谷浩平, 浜口智志

  2008, 応用物理学関係連合講演会講演予稿集, 55th(1) (1)


• 大気圧低温プラズマを用いた液中プラズマプロセスにおける生成ラジカル

  谷篤史, 北野勝久, 溝谷浩平, 浜口智志

  2008, ESR応用計測, 24


• 液中プラズマプロセスにおける液中ラジカルの電子スピン共鳴法による診断 II

  谷篤史, 北野勝久, 溝谷浩平, 浜口智志

  2008, 応用物理学会学術講演会講演予稿集, 69th(1) (1)


• 二酸化炭素とメタンの混合ハイドレートに生成するラジカル種とその反応

  谷篤史, 木谷晋輔, 竹家啓, 菅原武, 大垣一成, 大塚高弘, 中嶋悟

  2008, ESR応用計測, 24


• ESR Observation of Self-Preservation Effect of Methane Hydrate

  Kei Takeya, Kouhei Nango, Takeshi Sugahara, Atsushi Tani, Kazunari Ohgaki

  30 Jul. 2007, Physics and Chemistry of Ice: Proceedings of the 11th International Conference on the Physics and Chemistry of Ice, 311, 585-591 - 591, English

  [Refereed]

  Summary national conference


• 薄膜水の氷への構造変化の低温顕微赤外分光その場観測

  谷 篤史, 中島 悟, 石川 謙二, 古田 力矢, イシカワ ケンジ, フルタ リキヤ, タニ アツシ, ナカシマ サトル

  大阪大学低温センター, Apr. 2007, 大阪大学低温センターだより, 138, 13 - 17, Japanese


• Decay reaction of methyl radicals in methane hydrate

  TANI Atsushi, ISHIKAWA Kenji, TAKEYA Kei

  メタンハイドレートに生成するラジカル種の安定性とその後の反応過程について研究した.主に生成するメテルラジカルは,メタンハイドレートが安定であっても温度によっては二次反応に従い減少すること,消滅後はエタンとなることがわかった.地球に存在するメタンハイドレートでは時間が経つにつれエタンが増加していくが,より低い温度の水衛星などでメタンハイドレートが形成されていれば,ハイドレート内にラジカルが蓄積することがわかった.一方,氷Ihに生成する主なラジカルのヒドロキシルラジカルは77Kでは見られなかった.氷物質中における化学反応を考える上で,メタンハイドレートのような有機物を含む氷物質の影響を考慮すべきことが示唆された.

  The Japanese Society for Planetary Sciences, 25 Mar. 2007, Planetary people, 16(1) (1), 47-52 - 52, Japanese

  [Refereed]

  Report scientific journal


• 大気圧低温プラズマジェットを用いた液中プラズマプロセシング

  北野勝久, 古性均, 長崎幸夫, 井川聡, 谷篤史, 浜口智志

  2007, プラズマ・核融合学会年会(Web), 24th


• プロパンハイドレートにおけるプロピルラジカルの変化

  谷篤史, 仲辻健太郎, 竹家啓, 菅原武, 大垣一成

  2007, 日本化学会講演予稿集, 87th(2) (2)


• エチレンハイドレートに誘起されるラジカル種の熱安定性

  竹家啓, 仲辻健太郎, 菅原武, 谷篤史, 大垣一成

  2007, ESR応用計測, 23


• メタンハイドレート中に生成するラジカル種とその反応について

  谷篤史, 村山達郎, 大塚高弘, 石川謙二, 竹家啓, 中嶋悟

  2007, 分子科学討論会講演要旨集(CD-ROM), 1st


• P141 日本海に堆積する黄砂の供給源とその変動について

  長島 佳菜, 多田 隆治, Sun Youbin, 磯崎 裕子, 谷 篤史, 豊田 新

  日本気象学会, 2007, 大会講演予講集, 91, 277 - 277, Japanese


• High sensitive detection of methanol under 10ppm in methane hydrate

  MURAYAMA Tatsuro, OTSUKA Takahiro, TANI Atsushi, NAKASHIMA Satoru

  THE JAPANESE SOCIETY OF SNOW AND ICE, 2007, Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2007(0) (0), 102 - 102, Japanese


• Free radicals in methane hydrate

  谷篤史, 石川謙二, 竹家啓, 仲辻健太郎, 菅原武, 大垣一成

  23 Nov. 2006, 日本機械学会熱工学コンファレンス講演論文集, 2006, Japanese

  Summary national conference


• Radiation effects on ice and clathrate hydrate for chronology and environmental assessment

  谷篤史, 法澤公寛, 矢田猛士, 竹家啓

  22 Mar. 2006, 低温科学, 64, 223-230, Japanese

  Report research institution


• 自然放射線環境下におけるメタンハイドレート--ラジカルの生成とその熱安定性 (メタンシープとメタンハイドレート)

  石川 謙二, 谷 篤史

  海洋出版, Dec. 2005, 月刊地球, 27(12) (12), 976 - 981, Japanese


• Thermal Stability of The Radiation-Induced Methyl Radical in Methane Hydrate under High Pressure

  Atsushi Tani, Kenji Ishikawa, Kei Takeya

  15 Jun. 2005, Proceedings of the 5th International Conference on Gas Hydrates, 5(1) (1), 1734-1738, English

  Summary national conference


• Radicals Induced by gamma-ray Irradiation in Ethane and Ethylene Hydrates

  Kei Takeya, Kouhei Nango, Takeshi Sugahara, Kazunari Ohgaki, Atsushi Tani

  15 Jun. 2005, Proceedings of the 5th international conference on gas hydrates, 1, 279-283 - 283, English

  Summary national conference


• γ線照射エタンハイドレート内に誘起したラジカルに関する研究

  南郷興平, 竹家啓, 菅原武, 大垣一成, 谷篤史

  2005, 高圧討論会講演要旨集, 46th


• エタンハイドレート内部に誘起されたエチルラジカルに関する研究

  南郷興平, 竹家啓, 菅原武, 谷篤史, 大垣一成

  2005, ESR応用計測, 22


• プロパンハイドレートの照射効果について

  仲辻健太郎, 南郷興平, 竹家啓, 菅原武, 谷篤史, 大垣一成

  2005, ESR応用計測, 22


• メタンハイドレート中に誘起されたメチルラジカルの活性化エネルギー

  竹家啓, 南郷興平, 菅原武, 谷篤史, 大垣一成

  2005, ESR応用計測, 22


• γ線照射されたガスハイドレートの熱ルミネッセンス

  谷篤史, 田近靖博, 竹家啓, 橋本哲夫

  2005, ESR応用計測, 22


• 南極蒸発岩カルサイト中の硝酸ラジカルとその成因についての考察

  谷篤史, 佐藤英夫, 池谷元伺

  2004, 日本第四紀学会講演要旨集, (34) (34)


• メタンハイドレートの照射効果について

  竹家啓, 矢田猛士, 谷篤史, 池谷元伺, 大垣一成

  2004, ESR応用計測, 21


• スーパーナノ反応場の可能性

  谷篤史, 竹家啓, 矢田猛士

  2003, 未来を拓く高圧力科学技術セミナーシリーズ, (26) (26)


• 地底から外惑星まで:電子スピン共鳴(ESR)年代測定と放射線計測の展開

  谷 篤史, 上野 剛弘, 池谷 元伺

  アイオニクス, 23 Nov. 2002, 21世紀連合シンポジウム-科学技術と人間-論文集, 1, 581 - 584, Japanese


• O-338 A study of metamorphic differentiation of ecologite in the Seba basic schist of the Sambagawa belt, Japan using electron spin resonance (ESR) image of Mn^<2+> concentration in carbonate minerals

  Ueno Takehiro, Tani Atsushi, Hirai Makoto, Yoshiasa Akira, Yamanaka Chihiro, Tsuchiyama Akira, Ikeya Motoji

  The Geological Society of Japan, 2002, Annual Meeting of the Geological Society of Japan, 2002(0) (0), 167 - 167, Japanese


• 29a-ZA-13 Point defects in stishovite (high-pressure phase of SiO_2)

  Tani Atsushi, Ikeya Motoji, Ohtaka Osamu, Katsura Tomoo

  The Physical Society of Japan (JPS), 15 Mar. 1999, Meeting abstracts of the Physical Society of Japan, 54(1) (1), 108 - 108, Japanese


• 貫入花崗岩体の熱史の解明--ESR年代測定法の第四紀地質への展開 (総特集 高精度年代決定法とその応用--第四紀を中心として) -- (2章 放射線による損傷を計測する年代測定)

  谷 篤史, Grun R., Gurbanov A.

  海洋出版, 1999, 号外地球, (26) (26), 88 - 94, Japanese


• Analysis of atmospheric variety of NO_x and SO_2 around Kobe City before the Kobe Earthquake.

  KOMATSU T., TANI A., IKEYA M.

  15 Sep. 1997, 日本地震学会講演予稿集 = Programme and abstracts, the Seismological Society of Japan, 1997(2) (2), Japanese


• Pulsed ESR measurements of the radicals in solid SO_2

  Kanosue K., Tani A., Yamanaka C., Ikeya M.

  The Physical Society of Japan (JPS), 13 Sep. 1996, Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 1996(2) (2), 29 - 29, Japanese


• 30a-N-3 Movement of the Nojima Fault Using Lattice Defects in Quartz

  Tani A., Yamanaka C., IkeYa M.

  The Physical Society of Japan (JPS), 12 Sep. 1995, Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 1995(2) (2), 72 - 72, Japanese

• 食品分野における微生物制御技術の最前線（川崎晋 監修）

  北野勝久, 井川聡, 谷篤史

  Contributor, 第3編 第3章 プラズマジェットを用いた液中殺菌技術, CMC出版, Dec. 2014


• 非在来型天然ガスのすべて: エネルギー資源の新たな主役（コールベッドメタン・シェールガス・メタンハイドレート）（日本エネルギー学会 天然ガス部会 編）

  佐藤幹夫, 谷篤史

  Contributor, 第1章 1.4.5 メタンハイドレートの資源量, 第4章 4.2.3 メタンハイドレートの資源量試算, 日本工業出版, May 2014


• 新版 雪氷辞典（日本雪氷学会 編）

  谷 篤史

  Contributor, 用語執筆（12項目）, 古今書院, Mar. 2014


• 大気圧プラズマの技術とプロセス開発（沖野晃俊 監修）

  北野勝久, 井川聡, 谷篤史

  Contributor, 第V編 第2章 プラズマ医療のための大気圧低温プラズマを用いた液体の効果的殺菌技術, CMC出版, Aug. 2011


• 環境考古学ハンドブック（安田喜憲 編）

  池谷元伺, 谷篤史

  Contributor, 第II編 3. 放射線効果年代測定, 朝倉書店, Jan. 2004


• 物理学実験〜大阪大学理学部物理学科・物理学実験テキスト〜（杉山清寛, 福田光順, 山中千博, 下田正 編）

  谷篤史, 橋爪光

  Contributor, 第8章 高温・熱技術, 大阪大学出版会, Apr. 2003


• Proceedings of the International Symposium on New Prospects of ESR Dosimetry and Dating

  Neil Evan Whitehead, Makoto Hirai, Atsushi Tani, Chihiro Yamanaka, Motoji Ikeya

  Editor, The Society of ESR Applied Metrology, Sep. 2002

• 潜熱蓄熱材料としての四級ホスホニウム塩型準包接水和物の設計と機能

  東さくら, 綱島克彦, 嶋田仁, 菅原武, 谷篤史

  第12回高専-TUT太陽電池合同シンポジウム, Dec. 2022, Japanese

  Poster presentation


• Behavior of radical species in isoproplyamine silica clathrate

  Shusuke Isogai, Nobuyuki Tamai, Yuka Yokoyama, Atsushi Tani

  The 39th Workshop on ESR Applied Metrology, Dec. 2022, Japanese

  Oral presentation


• Application of ESR thermochronology for mountains in Japan: an assessment of ESR signal variation caused by sample preparation

  Yuya Kajita, Shigeru Sueoka, Atsushi Tani, Shusuke Isogai, Takahiro Tagami

  The 39th Workshop on ESR Applied Metrology, Dec. 2022, Japanese

  Oral presentation


• Effects of hydrocarbon chains in the quaternary phosphonium cations on the thermophysical properties of semiclathrate hydrates

  Jin SHIMADA, Sakura AZUMA, Takeshi SUGAHARA, Katsuhiko TSUNASHIMA, Atsushi TANI, Takayuki HIRAI

  The 43nd Japan Symposium on Thermophysical Properties, Oct. 2022, Japanese

  Oral presentation


• Estimation of ESR age of chibaite using organic radicals

  Shusuke Isogai, Yuka Yokoyama, Kenta Kusuki, Hirotsugu Nishido, Atsushi Tani

  6th Asia Pacific Conference on Luminescence and Electron Spin Resonance Dating (APLED2022), Sep. 2022, English

  Poster presentation


• Investigation on radiation-induced radicalsin primary alkylamines in silica clathrates

  Nobuyuki Tamai, Shusuke Isogai, Yuka Yokoyama, Atsushi Tani

  6th Asia Pacific Conference on Luminescence and Electron Spin Resonance Dating (APLED2022), Sep. 2022, English

  Poster presentation


• Effects of hydrocarbon chains in quaternary phosphonium cations on thermodynamic properties of semiclathrate hydrates

  Jin Shimada, Sakura Azuma, Katsuhiko Tsunashima, Takeshi Sugahara, Atsushi Tani, Takayuki Hirai

  SCEJ 53rd Autumn Meeting, Sep. 2022, Japanese

  Oral presentation


• Latent heat storage properties of semiclathrate hydrates including quaternary phosphonium cations with carbon-carbon double bond

  Jin SHIMADA, Sakura AZUMA, Katsuhiko TSUNASHIMA, Takeshi SUGAHARA, Atsushi TANI, Takayuki HIRAI

  31st Annual Meeting of the Japan Institute of Energy, Aug. 2022, Japanese

  Poster presentation


• Low frequency Raman spectroscopy of quaternary onium salt hydrates

  三輪 泰大, 嶋田 仁, 長濱 朋輝, 佐藤 春実, 竹家 啓, 谷 篤史

  Frontier workshop for young students of Kobe university 2019, Dec. 2019, Japanese

  Poster presentation


• Comparison of low frequency vibration modes and crystal structures in semiclathrate hydrates

  嶋田 仁, 三輪 泰大, 綱島 克彦, 菅原 武, 谷 篤史

  Frontier workshop for young students of Kobe university 2019, Dec. 2019, Japanese

  Poster presentation


• Isotopic fractionation of methane with clathrate hydrate formation under the condition of ice crust/internal ocean boundary in Enceladus and Europe

  Kushi Kudo, Atsushi Tani, Naohiro Yoshida, Makoto Nagasawa

  AGU Fall Meeting 2019, Dec. 2019, English

  Poster presentation


• Effects of phosphonium cation on equilibrium temperature and latent heat of semiclathrate hydrates

  嶋田 仁, 嶋田 大海, 菅原 武, 綱島 克彦, 谷 篤史

  第9回潜熱工学シンポジウム, Dec. 2019, Japanese

  Oral presentation


• TBABセミクラスレートハイドレート26水和物における固相転移の分光観察

  須山 充, 秋田 雄賀, 谷 篤史

  H2Oを科学する2019, Dec. 2019, Japanese

  Poster presentation


• A change of low-temperature ESR spectra observed in gamma-irradiated chibaite

  横山 優花, 磯谷 舟佑, 西戸 裕嗣, 谷 篤史

  ESR応用計測研究会・ルミネッセンス年代測定研究会・フィッショントラック研究会 2019年度合同研究会, Nov. 2019, Japanese

  Oral presentation


• ESR study on thermal stability of radical species in chibaite

  磯谷 舟佑, 横山 優花, 西戸 裕嗣, 谷 篤史

  ESR応用計測研究会・ルミネッセンス年代測定研究会・フィッショントラック研究会 2019年度合同研究会, Nov. 2019, Japanese

  Oral presentation


• Phase Equilibrium Behavior of Bromide Semiclathrate Hydrates with Different Alkyl Chains of Phosphonium Cations

  嶋田 仁, 嶋田 大海, 菅原 武, 綱島 克彦, 谷 篤史

  第29回日本MRS年次大会, Nov. 2019, Japanese

  Oral presentation


• Physicochemical properties of semiclathrate hydrate enclathrating tributylalkylphosphonium cations

  嶋田 仁, 三輪 泰大, 嶋田 大海, 菅原 武, 綱島 克彦, 佐藤 春実, 谷 篤史

  第10回イオン液体討論会, Nov. 2019, Japanese

  Poster presentation


• Assessing the influence of intermolecular interactions of guest molecules in TBA / TBP hydrate by low frequency Raman spectroscopy

  三輪 泰大, 嶋田 仁, 長濱 朋輝, 佐藤 春実, 竹家 啓, 谷 篤史

  第10回イオン液体討論会, Nov. 2019, Japanese

  Oral presentation


• エンケラドス，エウロパの氷地殻-内部海界面の条件を模したクラスレートハイドレート生成実験およびゲストガスの同位体測定の手法

  工藤 久志, 谷 篤史, 永澤 真, 山田 桂太, 吉田 尚弘

  2019年度日本地球化学会第66回年会, Sep. 2019, Japanese

  Oral presentation


• セミクラスレートハイドレートの熱物性に及ぼすカチオン構造の影響

  嶋田 仁, 嶋田 大海, 菅原 武, 谷 篤史, 綱島 克彦

  第28回日本エネルギー学会大会, Aug. 2019, Japanese

  Poster presentation


• トリフルオロカルボン酸アニオンがセミクラスレートハイドレートに及ぼす影響

  嶋田 大海, 嶋田 仁, 菅原 武, 綱島 克彦, 谷 篤史, 鶴我佳代子, 青山千春

  第28回日本エネルギー学会大会, Aug. 2019, Japanese

  Poster presentation


• 低波数Raman分光法を用いたTBA/TBP bromideハイドレートのゲスト分子相互作用の差異

  三輪 泰大, 嶋田 仁, 長濱 朋輝, 佐藤 春実, 竹家 啓, 谷 篤史

  第28回日本エネルギー学会大会, Aug. 2019, Japanese


• TBAB 26H2O内で生成する物質の成長過程に対するTBAB水溶液の濃度の影響

  秋田 雄賀, 須山 充, 谷 篤史

  第28回日本エネルギー学会大会, Aug. 2019, Japanese

  Oral presentation


• Peroxynitric acid (HOONO2) chemistry inside plasma-treated water (PTW) for effective and safety disinfection

  Katsuhisa Kitano, Satoshi Ikawa, Yoichi Nakashima, Takashi Yokoyama, Yusuke Kawashima, Atsushi Tani

  24th International Symposium on Plasma Chemistry, Jun. 2019, English

  Oral presentation


• Inclusion of brine into icy shell of Enceladus

  西谷 隆介, 谷 篤史, 佐々木 晶, 木村 淳

  日本地球惑星科学連合2019年大会, May 2019, Japanese

  Poster presentation


• 氷衛星における氷地殻底部環境を模擬したガスハイドレート生成観察装置の開発（２）

  谷 篤史, 森山 謙志郎

  日本地球惑星科学連合2019年大会, May 2019, Japanese

  Poster presentation


• 冥王星の不思議を解く内部構造モデル

  鎌田 俊一, Nimmo Francis, 関根 康人, 倉本 圭, 野口 直樹, 木村 淳, 谷 篤史

  日本地球惑星科学連合2019年大会, May 2019, Japanese

  [Invited]

  Invited oral presentation


• 氷衛星・氷惑星環境を模したガスハイドレート試料の同位体測定：装置開発および測定法の検討

  工藤 久志, 谷 篤史, 吉田 尚弘

  日本地球惑星科学連合2019年大会, May 2019


• Peroxynitric acid (HOONO2) preserved in plasma-treated water for effective and safe disinfection

  Katsuhisa Kitano, Satoshi Ikawa, Yoichi Nakashima, Atsushi Tani

  8th Central European Symposium on Plasma Chemistry, May 2019, English

  [Invited]

  Invited oral presentation


• 大阪湾の海底に見られるサンドウェーブの移動

  小島 響, 松野 哲男, 佐野 守, 島 伸和, 遠藤 徳孝, 大串 健一, 谷 篤史

  日本地球惑星科学連合2019年大会, May 2019, Japanese

  Oral presentation


• Peroxynitric acid (HOONO2) is the most valuable chemical species in plasma-treated water for effective and safe disinfection

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  7th International Conference on Advanced Plasma Technologies (ICAPT7), Feb. 2019, English, International conference

  [Invited]

  Invited oral presentation


• 大阪湾の海底に見られるサンドウェーブの形成と移動：直近1年の沖の瀬の砂の移動のダイナミクス

  KOJIMA Hibiki, MATSUNO Tetsuo, SANO Mamoru, SEAMA Nobukazu, ENDO Noritaka, OHKUSHI Kenichi, TANI Atsushi

  第4回海洋環境研究集会, Dec. 2018, Japanese, Domestic conference

  Oral presentation


• Application of peroxynitric acid in plasma-treated water for safe and effective disinfection

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, OHSHIMA Tomoko, TANI Atsushi

  第28回日本MRS年次大会, Dec. 2018, Japanese, Domestic conference

  Oral presentation


• Study of Tetrabutylammonium Bromide Hydrate by Two spectroscopies in THz region

  Yasuhiro Miwa, Tomoki Nagahama, Keisuke Matsumura, SATO HARUMI, Kei Takeya, Atsushi Tani

  The 3rd Aquaphotomics International Symposium, Dec. 2018, English, 淡路夢舞台, International conference

  Poster presentation


• 電子スピン共鳴法を用いたプラズマにより水中に誘起される活性種の診断

  TANI Atsushi, IKAWA Satoshi, KITANO Katsuhisa

  平成30年度電気学会北陸支部シンポジウム「プラズマが誘起する液中化学反応診断の最前線」, Nov. 2018, Japanese, Domestic conference

  [Invited]

  Invited oral presentation


• Formation and movement of sand wave in Osaka Bay

  KOJIMA Hibiki, MATSUNO Tetsuo, SANO Mamoru, SEAMA Nobukazu, ENDO Noritaka, OHKUSHI Kenichi, TANI Atsushi

  第35回ESR応用計測研究会,2018年度ルミネッセンス年代測定研究会,第43回フィッション・トラック研究会 合同研究会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• Electron spin resonance study on radical species in chibaite

  KUSUKI Kenta, NISHIDO Hirotsugu, TANI Atsushi

  第35回ESR応用計測研究会,2018年度ルミネッセンス年代測定研究会,第43回フィッション・トラック研究会 合同研究会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 過硝酸溶液を利用した世界初の殺菌手法

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  日本防菌防黴学会 第45回年次大会, Nov. 2018, Japanese, Domestic conference

  [Invited]

  Invited oral presentation


• ESR measurements of TBAB hydrate including hydrogen peroxide

  MIWA Yasuhiro, TANI Atsushi

  第35回ESR応用計測研究会,2018年度ルミネッセンス年代測定研究会,第43回フィッション・トラック研究会 合同研究会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• Chemical kinetics of the sterilization by peroxynitric acid (HOONO2) in plasma-treated water

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, KAWASHIMA Yusuke, YOKOYAMA Takashi, Yokoyama, TANI Atsushi

  71st Annual Gaseous Electronics Conference (GEC18), Nov. 2018, English, International conference

  Oral presentation


• 反応場としてのメタンハイドレート：メタンハイドレートからメタノールを作る！

  TANI Atsushi

  第8回CSJ化学フェスタ2018, Oct. 2018, Japanese, Domestic conference

  [Invited]

  Invited oral presentation


• THz-TDS study on tetrabutylammonium bromide hydrate

  MIWA Yasuhiro, MATSUMURA Keisuke, TAKEYA Kei, TANI Atsushi

  43rd International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz2018), Sep. 2018, English, International conference

  Poster presentation


• TBAB hydrate formed from TBAB•26H2O semiclathrate crystal

  SUYAMA Mitsuru, MIWA Yasuhiro, TANI Atsushi

  第27回日本エネルギー学会大会, Aug. 2018, Japanese, Domestic conference

  Oral presentation


• Observation of THz-Raman Spectrum in Tetrabutylammonium Bromide Hydrate

  Yasuhiro Miwa, Tomoki Nagahama, SATO HARUMI, Kei Takeya, Atsushi Tani

  the 26th International Conference on Raman Spectroscopy, Aug. 2018, English, Jeju Island, Korea, International conference

  Poster presentation


• Observation of THz- Raman Spectrum in Tetrabutylammonium Bromide Hydrate

  Yasuhiro Miwa, Tomoki Nagahama, SATO HARUMI, Kei Takeya, Atsushi Tani

  ICAMS, Jun. 2018, English, Kwansei Gakuin Kaikan, Nishinomiya, International conference

  Poster presentation


• Bactericidal property of peroxynitric acid (HOONO2) in cryo-preserved plasma-treated water with reduced-pH method for effective and safety disinfection

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, KAWASHIMA Yusuke, TANI Atsushi

  7th International Conference on Plasma Medicine (ICPM7), Jun. 2018, English, International conference

  Oral presentation


• Development of observation system of gas hydrate forming in the environment simulated near the bottom of icy shell in icy satellites

  TANI Atsushi, SUYAMA Mitsuru, NISHITANI Ryusuke

  Japan Geoscience Union Meeting 2018, May 2018, Japanese, Domestic conference

  Oral presentation


• Inclusion of ammonium ion into clathrate hydrate in subsurface ocean of icy moons

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho, KIMURA Jun

  14th International Conference on the Physics and Chemistry of Ice, Jan. 2018, English, Zürich, Switzerland, International conference

  Poster presentation


• Smart disinfection technique using peroxynitric acid (HOONO2) in cryo-preserved plasma-treated water with the reduced-pH method

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi, KAWASHITA Norihito, KAWASHIMA Yusuke, YOKOYAMA Takashi

  10th EU-Japan Joint Symposium on Plasma Processing, Dec. 2017, English, Okinawa, Japan, International conference

  [Invited]

  Invited oral presentation


• Identification of key chemical component in PTW (plasma-treated water) for peroxynitric acid (HOONO2)

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  Plasma Conference 2017, Nov. 2017, Japanese, Himeji, Japan, Domestic conference

  Oral presentation


• Production process of peroxynitric acid in PTW (plasma-treated-water)

  ENDO Yuma, KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  Plasma Conference 2017, Nov. 2017, Japanese, Himeji, Japan, Domestic conference

  Poster presentation


• Inclusion of ammonium ions into clathrate hydrate in a subsurface ocean of icy moons

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho, KIMURA Jun

  ILTS Symposium: H2O Science - 2017, Sep. 2017, Japanese, Sapporo, Japan, Domestic conference

  Oral presentation


• 土星衛星エンセラダスのプリューム組成に対する氷・クラスレートハイドレート形成の影響

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho, KIMURA Jun

  日本惑星科学会2017年秋季講演会, Sep. 2017, Japanese, Toyonaka Japan, Domestic conference

  Oral presentation


• 過硝酸溶液を用いた新しい殺菌手法の提案

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  日本防菌防黴学会 第44回年次大会, Sep. 2017, Japanese, Toyonaka, Japan, Domestic conference

  Poster presentation


• Production process of peroxynitric acid in plasma-treated water (PTW)

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, TANI Atsushi

  78th JSAP Autumn Meeting, 2017, Sep. 2017, Japanese, Fukuoka, Japan, Domestic conference

  Oral presentation


• Water-tetrahydrofuran hydrate partition coefficient for ammonium ion

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho

  26th Annual Meeting of the Japan Institute of Energy, Aug. 2017, Japanese, Nagoya, Japan, Domestic conference

  Oral presentation


• Peroxynitric acid (HOONO2) is the active component in cryo-preserved plasma-treatedwater with the reduced-pH method for effective and safety disinfection

  KITANO Katsuhisa, IKAWA Satoshi, NAKASHIMA Yoichi, KAWASHITA Norihito, TANI Atsushi

  23rd International Symposium on Plasma Chemistry, Aug. 2017, Japanese, Montréal, Canada, International conference

  Oral presentation


• The effect of clathrate formation on concentrations of ammonia and ammonium ion in a subsurface ocean of Enceladus

  NISHITANI Ryusuke, TANI Atsushi, SASAKI Sho, KIMURA Jun

  JpGU-AGU Joint Meeting 2017, May 2017, Japanese, Chiba, Japan, Domestic conference

  Poster presentation

• 第四紀学会


• ESR応用計測研究会

• ハイドレートケージにおけるゲスト物質の滞留と拡散に関する研究

  2010


• 固体高分解能NMRおよびESR分光法による新しい文化財分析法の開発

  2004


• マレー半島の鍾乳洞形成史の解明

  2000


• History of Caves in Peninsula Malaysia

  2000


• 貫入花こう岩の熱史と貫入速度の見積り

  1998


• Thermal history of intrusive granite

  1998

• 局所的な自然放射線環境の復元に基づく表層型メタンハイドレート生成史の解明

  谷 篤史

  学術研究助成基金助成金／基盤研究(C), Apr. 2017 - Mar. 2020, Principal investigator

  Competitive research funding


• 表層型メタンハイドレート採取容器の開発とその生成史の解明

  谷 篤史

  学術研究助成基金助成金／基盤研究(C), Apr. 2014 - Mar. 2018, Principal investigator

  Competitive research funding