April 2019 - March 2020
March, 2020	- New publication - H. Machida, T. Sugahara, H. Masunaga, I. Hirasawa: "Calorimetric and Small-Angle X-ray Scattering Studies on the Memory Effect in the Tetra-n-Butylammonium Bromide Semiclathrate Hydrate System", Journal of Crystal Growth, 533, 125476-1-6 (2020). [DOI]
Dec. 30, 2019	May this be a happy and fruitful new year!
Dec. 21, 2019	Mr. Y. Takaoka (collaborator) gave a poster presentation at the 2019-3th Meeting of the Kansai branch of Electrochemical Society of Japan (in Japanese) held at Kyoto, Japan.
Dec. 2-3, 2019	Prof. Sugahara and Mr. J. Shimada (collaborator) gave oral presentations at the JST-Mirai-Project International Workshop on Latent Heat Engineering held at Mito, Japan.
Nov. 27-29, 2019	Mr. J. Shimada (collaborator) gave an oral presentation at the 29th Annual Meeting of MRS-J held at Yokohama, Japan. Mr. J. Shimada won the Award for Encouragement of Research in the 29th Annual Meeting of MRS-J. Congratulations!
Nov. 21-22, 2019	Mr. J. Shimada (collaborator) gave a poster presentation at the 10th Conference of Ionic Liquid Research Association, Japan held at Osaka, Japan. Mr. J. Shimada won the excellent poster presentation award. Congratulations!
October 4, 2019	Prof. Sugahara gave a lecture on the recent gas hydrate researches in the National Maritime Research Institute (NMRI), Japan.
October, 2019	- New publication - T. Sugahara, H. Machida, S. Muromachi, N. Tenma: "Thermodynamic Properties of Tetra-n-butylammonium 2-Ethylbutyrate Semiclathrate Hydrate for Latent Heat Storage", International Journal of Refrigeration, 106, 113-119 (2019). [DOI]
Sep. 23-27, 2019	Mr. H. Machida (collaborator) gave a poster presentation at the 18th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2019) held at Sapporo, Japan. Prof. Sugahara organized the session 1 "Physical properties and physical chemistry" as one of organizers.
August 7-8, 2019	Prof. Sugahara gave an oral presentation at the 28th Annual Meeting of the Japan Institute of Energy held at Kansai University, Osaka. Mr. Jin Shimada and Mr. Masami Shimada (collaborators) also gave poster presentations there. Congratulations, Masami! Masami won a poster presentation award!
July 28-August 2, 2019	Prof. Sugahara gave an oral presentation at the 19th International Conference on Crystal Growth and Epitaxy (ICCGE19) held at Keystone conference center, CO, US.
June 8, 2019	Prof. Sugahara gave a science lecture to the Seisho high school/junior high school students. The title was "Energy issue and gas hydrates - What is burning ice? -"
June, 2019	- New publication - M. Shimada, J. Shimada, T. Sugahara, K. Tsunashima: "Phase Equilibrium Relations for Tetra-n-butylphosphonium Acetate Semiclathrate Hydrate Systems in the Presence of Methane, Carbon Dioxide, Nitrogen, or Ethane", Fluid Phase Equilibria, 488, 48-53 (2019). [DOI]
May 12-16, 2019	Prof. Sugahara gave a poster presentation at the 15th International Conference on Properties and Phase Equilibria for Product and Process Design (PPEPPD2019) hela at the University of British Columbia, Vancouver, Canada.
May, 2019	- New publication - H. Machida, T. Sugahara, I. Hirasawa: "Preparation of Dispersed Metal Nanoparticles in the Aqueous Solution of Metal Carboxylate and the Tetra-n-butylammonium Carboxylate", Journal of Crystal Growth, 514, 14-20 (2019). [DOI]
April, 2019	- New publication - J. Shimada, M. Shimada, T. Sugahara, K. Tsunashima: "Phase Equilibrium Relations of Tetra-n-butylphosphonium Propionate and Butyrate Semiclathrate Hydrates", Fluid Phase Equilibria, 485, 61-66 (2019). [DOI]
April 2018 - March 2019
March 29, 2019New!	Press release on our article in Nature was posted at Osaka University ResOU.
March 29, 2019New!	- New publication - B. Li, Y. Kawakita, S. Ohira-Kawamura, T. Sugahara, H. Wang, J. Wang, Y. Chen, S. I. Kawaguchi, K. Ohara, S. Kawaguchi, K. Li, D. Yu, R. Mole, T. Hattori, T. Kikuchi, S. Yano, Z. Zhang, Z. Zhang, W. Ren, S. Lin, O. Sakata, K. Nakajima, Z. Zhang: "Colossal Barocaloric Effects in Plastic Crystals", Nature, 567(7749), 506-510 (2019). [DOI]
March 16, 2019	We had a good time at the alumni party of Ohgaki laboratory (held at Osaka). Thank you for coming!
January, 2019	- New publication - T. Sugahara: "Equilibrium Phase Relations of Gas Hydrates and Cage Occupancy of Guest Species" (written in Japanese), Journal of the Japan Institute of Energy "Enermix", 98(1), 47-51 (2019).
Dec. 10-11, 2018	We (including collaborators) gave three presentations (1 oral and 2 posters) at the Ice Science 2018 held at Hokkaido University, Japan.
Dec. 3-4, 2018	Prof. Sugahara gave an invited lecture at the 8th Symposium on Latent Heat Engineering held at Owari-Ichinomiya, Japan.
Oct. 31-Nov. 3, 2018	Mr. Jin Shimada (collaborator) gave a poster presentation at the 6th Asian-Pacific Conference on Ionic Liquids & Green Processes held at Yonago, Japan.
October 23-25, 2018	Prof. Sugahara gave the lecture in the methane hydrate session of 8th CSJ Chemistry Festa held at Towerhole Funabori, Tokyo, Japan.
October, 2018	- New publication - T. Yamazaki, T. Tanabe, T. Sugahara: "Enclathration of Ethane, Propane, and Propylene into Urea Clathrates and Roles of Methanol on Urea Clathrate Formation", ACS Omega, 3(10), 13154-13159 (2018). [DOI]
September 25-26, 2018	Mr. Jin Shimada and Mr. Masami Shimada (collaborators) gave oral presentations at 2018 Fall Meeting of Electrochemical Society of Japan held at Kanazawa Univ., Japan.
September, 2018	- New publication - T. Sugahara: "Cage Occupancy of Guest Molecules and Thermodynamic Stability of Gas Hydrates" (written in Japanese), Refrigeration, 93, 13-17 (2018).
September 18-20, 2018	Mr. Machida (collaborator) gave an oral presentation (BA308) at 50th Autumn Meeting of Society of Chemical Engineers, Japan held at Kagoshima Univ., Japan.
September, 2018	- New publication - J. Shimada, M. Shimada, T. Sugahara, K. Tsunashima, A. Tani, Y. Tsuchida, M. Matsumiya: "Phase Equilibrium Relations of Semiclathrate Hydrates Based on Tetra-n-butylphosphonium Formate, Acetate, and Lactate", Journal of Chemical & Engineering Data, 63(9), 3615-3620 (2018). [DOI]
September 4-7, 2018	Prof. Sugahara, Mr. Machida (collaborator), Mr. Jin Shimada (collaborator), and Mr. Masami Shimada (collaborator) made poster presentations at the 8th International Symposium on Molecular Thermodynamics and Molecular Simulation (MTMS'18) held at Nihon University (Tsudanuma), Chiba, Japan. Mr. Jin Shimada (collaborator, National Institute of Technology, Wakayama College) won the Student Poster Presentation Award! Congratulations!
August 8-9, 2018	Prof. Sugahara and Mr. Machida (collaborator) gave oral presentations at 27th Annual Meeting of the Japan Institute of Energy held at Nihon University (Surugadai), Tokyo, Japan.
June, 2018	- New publication - H. Machida, T. Sugahara, I. Hirasawa: "Memory effect in tetra-n-butyl ammonium bromide semiclathrate hydrate reformation: the existence of solution structures after hydrate decomposition", CrystEngComm, 20, 3328-3334 (2018). [DOI] This article was selected as Inside Front Cover!
June 20-22, 2018	Prof. Suaghara and Mr. Machida (collaborator) gave poster presentations at 4th Asian Crystallization Technology Symposium (ACTS-2018) held at Biopolis, Singapore. On June 23, we visited Prof. Linga lab in the National University Singapore to discuss the hydrate researches.
May 24, 2018	The JST-CREST research with Prof. Yamashita (Nagoya U.) and Prof. Yamaguchi (U. Tokyo) was started.
April 2, 2018	The research proposal (KAKENHI) Prof. Sugahara submitted was accepted by JSPS.
April 2017 - March 2018
February 27-March 1 and March 22-30, 2018	Mr. Masami Shimada spent 10 days in our lab as a research internship on physicochemical properties of semiclathrate hydrates.
January 8-12, 2018	Mr. Machida (collaborator) gave an poster presentation (Jan. 9th) at 14th International Conference on the Physics and Chemistry of Ice held at ETH Zürich, Switzerland.
January 4, 2018	A Happy New Year!
December, 2017	- New publication - A. Fujimoto, T. Sugahara: "Scanning Electron Microscopic Studies on the Methane Hydrate Decomposition Using the Freeze-Fracture Replica Method", Bulletin of Glaciological Research, 35, 39-45 (2017). [DOI]
November 23-24, 2017	Mr. Jin Shimada (collaborator) gave a poster presentation in the 8th Meeting of Ionic Liquid Research Association held at Tokyo University of Agriculture and Technology, Japan
November 12, 2017	Prof. Sugahara joined the science exhibition at Wakayama Univ. with Prof. Tsunashima, Mr. Jin Shimada, and Mr. Masami Shimada.
October 26-27, 2017	Prof. Sugahara and Mr. Jin Shimada (collaborator) gave oral presentations about the recent emperimental results at the 9th Symposium of Methane Hydrates (organized by AIST Japan) held at AIST in Tsukuba.
October, 2017	- New publication - H. Machida, T. Sugahara, I. Hirasawa: "Relationship between Supercooling Stability and Solution Structure in Sodium Acetate Aqueous Solution", Journal of Crystal Growth, 475, 295-299 (2017). [DOI]
September 20-22, 2017	Mr. Machida (collaborator) gave an oral presentation (EC321) at 49th Autumn Meeting of Society of Chemical Engineers, Japan held at Nagoya Univ., Japan.
September, 2017	- New publication - T. Sugahara, H. Machida: "Dissociation and Nucleation of Tetra-n-butyl Ammonium Bromide Semi-Clathrate Hydrates at High Pressures", Journal of Chemical & Engineering Data, 62(9), 2721-2725 (2017). [DOI]
September 14-15, 2017	Prof. Sugahara reported the recent emperimental results at the research meeting "Sciences of H2O 2017" held in Hokkaido Univ., Japan.
September 10-11, 2017	Mr. Jin Shimada (collaborator) gave an oral presentation in the Fall Meeting of Electrochemical Society of Japan held at Nagasaki Univ., Japan
September 4-8, 2017	Mr. Jin Shimada and Mr. Masami Shimada spent a week in our lab as research internships.
September, 2017	The book "50 Queries on Sea Water" (in Japanese) was published. Prof. Sugahara wrote a section of methane hydrate in the book.
August 8-11, 2017	Mr. Machida (collaborator) and Prof. Suaghara gave a poster presentation in the 5th international symposium & Exhibition on "Aqua Science and Water Resources" (ISASWR17) held at Fukuoka University, Japan. We got the Excellent Poster Presentation Award (Researcher)!
August 1-2, 2017	Prof. Sugahara gave an oral presentation at 26th Annual Meeting of the Japan Institute of Energy held at WINC Aichi, Nagoya, Japan.
July 3-4, 2017	Mr. Jin Shimada (collaborator) gave a poster presentation in the 6th JACI/GSC Symposium held at Tokyo, Japan.
June 25-30, 2017	Mr. Machida (collaborator) and Prof. Suaghara gave a poster presentation in the 9th International Conference on Gas Hydrates held at Denver, CO. Next ICGH10 in 2020 will be held in Singapore.
June, 2017	- New publication - T. Sugahara: "Gas Separation Using Gas Hydrates", Bunri Gijyutsu, 47(3), 29-34 (2017). (written in Japanese)
May 30 - June 1, 2017	Ms. Fujimoto (collaborator) gave a oral presentation at The 73rd Annual Meeting of The Japanese Society of Microscopy hels at Sapporo Convention Center, Hokkaido, Japan.
April 2016 - March 2017
December, 2016	- New publication - T. Sugahara: "Four-Phase Equilibrium Relations Including Clathrate Hydrate Phase in a Ternary System of Xenon, Benzene, and Water", Journal of Chemical & Engineering Data, 61(12), 4057-4060 (2016). [DOI]
October, 2016	Mr. Felipe Pereira de Lima and Mr. Thierry Philipe Rodriguez Garcia sucessfully completed the program "Science withour Border" for 1 year. Wish both all the best!
August 9-10, 2016	Prof. Sugahara gave an oral presentation at 25th Annual Meeting of the Japan Institute of Energy held at Kogakuin University, Tokyo, Japan.
August 8, 2016	Prof. Sugahara gave the lecture about the recent topics om clathrate hydrates at AIST, Japan.
July 29, 2016	Mr. Pereira de Lima and Mr. Rodriguez Garcia gave their final presentation in the Brazilian Government Scholarship program (Science without Borders).
May 22-26, 2016	Prof. Sugahara (Poster) gave the presentation at the 14th International Conference on Properties and Phase Equilibria for Product and Process Design (PPEPPD) held at Porto, Portugal.
April, 2016	Prof. Sugahara became an invited guest researcher in AIST, Japan.
April 2015 - March 2016
February, 2016	- New publication - T. Bando, T. Sugahara: "Phase Behavior of Ethane Hydrate System in the Presence of Ammonium Bromide, Fluid Phase Equilibria, 413, 36-40 (2016). [DOI]
December, 2015	- New publication - Caroline T. Moryama, T. Sugahara, Danilo Y. Yatabe Franco, H. Mimachi: "In Situ Raman Spectroscopic Studies on Small-Cage Occupancy of Methane in the Simple Methane and Methane+Deuterated Tetrahydrofuran Mixed Hydrates", Journal of Chemical & Engineering Data, 60(12), 3581-3587 (2015). [DOI]
November 10, 2015	Prof. Sugahara gave the lecture about the H2 hydrates at AIST, Japan.
November 4, 2015	Prof. Sugahara gave the lecture about the fundamental studies on clathrate hydrates by means of Raman spectroscopy at Department of Engineering, Nihon University (in Fukushima, Japan).
October 8, 2015	Welcome Felipe and Thierry (from Brazil) as the special students to our research group. They will spend a year with us until September 2016.
Sep. 29, 2015	Ms. Caroline Tiemi Moryama sucessfully completed the program "Science withour Border" for 1 year. Tiemi left Japan today. Wish Tiemi all the best!
Sep 7-8, 2015	Prof. Sugahara reported the recent emperimental results at the research meeting "Sciences of H2O 2015" held in Hokkaido Univ., Japan.
Aug. 20, 2015	Mr. Danilo Y. Yatabe Franco sucessfully completed the program "Science withour Border" for 1 year. Danilo left Osaka today from KIX. Wish Danilo all the best!
Aug. 5, 2015	Prof. Sugahara gave the invited presentation at 46th GH researchers meeting in Sapporo, Japan
July 31, 2015	Miss Moryama and Mr. Yatabe Franco gave their final presentation in the Brazilian Government Scholarship program (Science without Borders).
June 21-26, 2015	Prof. Sugahara (Oral) and Mr. Yatabe Franco (Poster) gave the presentations at the 19th Symposium of Thermophysical Properties held at Boulder, CO.
June 19-20, 2015	Prof. Sugahara visited Rice University (Houston, TX) to discuss our future collaborations. He gave a presentation about his recent results there.
April 2014 - March 2015
March 25, 2015	Congratulation on your graduations, Mr. Kitamura, Mr. Bando, and Mr. Yamazaki! Mr. Kitamura won the prize presented to a student with outstanding academic achievement.
March 19-21, 2015	Prof. Sugahara gave a oral presentation at 2015 SCEJ 80th Annual Meeting held at Shibaura Institute of Technology, Tokyo, Japan.
March 9-13, 2015	Mr. Yamazaki gave a poster presentation at Fourth International Conference on Multifunctional, Hybrid and Nanomaterials (Hybrid Materials 2015) held in Sitges (near Barcelona), Spain.
March 10, 2015	Congratualtions! Mr. Kitamura, Mr. Bando, Mr. Yamazaki successfully defended their Master thesis defenses held on Feb. 19-20.
February, 2015	- New publication - T. Tanabe, T. Sugahara, K. Kitamura, T. Yamazaki, T. Fujimoto, K. Ohgaki: "High-Pressure Phase Equilibria of Tertiary-Butylamine Hydrates with and without Hydrogen", Journal of Chemical & Engineering Data, 60(2), 222-227 (2015). [DOI]
January 13, 2015	The special issue of gas hydrates was published. Prof. Sugahara was a guest editor of the special issue (vol.24, No. 4) of "The Review of High Pressure Science and Technology".
January 13-14, 2015	Mr. Kitamura (our group) and Dr. Oshima(collaborator) reported their recent emperimental results at the research meeting "Sciences of H2O 2014" held in Hokkaido Univ., Japan.
January 9, 2015	Prof. Sugahara became a member of the Editorial Advisory Board of the Journal of Chemical & Engineering Data.
December 22, 2014	The 4th physical chemistry seminor was held at Osaka, Japan.
December 3-4, 2014	Prof. Sugahara and Prof. Tani (collaborator) reported the recent emperimental results at the 6th Symposium of Methane Hydrates (organized by AIST Japan) held in Tokyo.
November, 2014	- New publications - Y. Matsumoto, Y. Katsuta, F. Kamo, T. Bando, T. Makino, T. Sugahara, K. Ohgaki: "Nucleophilic Reactions of Bromocyclopentane in the Structure-H Methane + Bromocyclopentane Mixed Hydrate System at High Pressures", The Journal of Physical Chemistry B, 118(47), 13404-13408 (2014). [DOI] A. Tani, S. Koyama, Y. Urabe, K. Takato, T. Sugahara, K. Ohgaki: "Blue-Colored tert-Butylamine Clathrate Hydrate", The Journal of Physical Chemistry B, 118(47), 13409-13413 (2014). [DOI] M. Oshima, K. Kitamura, A. Tani, T. Sugahara, K. Ohgaki: "Synergistic Formation of Carboxyl and Methyl Radicals in CO2 + Methane Mixed Gas Hydrates", The Journal of Physical Chemistry B, 118(47), 13435-13439 (2014). [DOI]
November 22-24, 2014	Mr. Yamazaki (oral) and Mr. Bando (poster) gave the presentations at "the 55th High Pressure Conference of Japan" held in Tokusima, Japan.
October 31, 2014	Congratulations, Takahiro! Osaka University accepted his proposal for attending the international conference. Mr. Yamazaki will attend the Fourth International Conference on Multifunctional, Hybrid and Nanomaterials (Hybrid Materials 2015) with the financial support (the special scholarship decided by the president of Osaka University).
October 3, 2014	Welcome Tiemi and Yoshio (from Brazil) as the special students to our research group. They will spend a year with us until September 2015.
July 28-August 1, 2014	Prof. Sugahara gave two poster presentations (one of them is the collaboration with Colorado School of Mines) in the 8th International Conference on Gas Hydrates (ICGH8) at Beijing, China.
July, 2014	- New publication - Y. Matsumoto, H. Matsukawa, F. Kamo, Y.B. Jeon, Y. Katsuta, T. Bando, T. Makino, T. Sugahara, K. Ohgaki: "Thermodynamic Stability Boundaries and Structures of Methane+Monohalogenated Cyclopentane Mixed Hydrates", Journal of Chemical & Engineering Data, 59(7), 2294-2297 (2014). [DOI]
April 1, 2014	Environmental Physical Chemistry Gr. was removed from the lab list after Associate Professor Sato voluntarily retired on March 31, 2014. But Takeshi and three Master students continue the hydrate researches at Osaka University. If you have any question, please e-mail to Takeshi.
April 2013 - March 2014
March 25, 2014	Congratulations on your graduation!
March 16-21, 2014	Mr. Matsumoto (oral) and Prof. Sugahara (poster) gave the presentations in the 13th International Conference on the Physics and Chemistry of Ice (PCI 2014) at Hanover, NH. Prof. Tani, Mr. Oshima, and Mr. Kouyama (our collaborators) also gave the presentations there.
March 10, 2014	Congratualtions! Mr. Yuuki Matsumoto successfully defended his PhD thesis defenses held on Jan. 22.
March 10, 2014	Congratualtions! Mr. Ogino, Mr. Katsuta, Mr. Kitajima, and Mr. Tanabe successfully defended their Master thesis defenses held on Feb. 14.
February, 2014	- New publication - Y. Matsumoto, R.G. Grim, N.M. Khan, T. Sugahara, K. Ohgaki, E.D. Sloan, C.A. Koh, A.K. Sum: "Investigating the Thermodynamic Stabilities of Hydrogen and Methane Binary Gas Hydrates", The Journal of Physical Chemistry C, 118(7), 3783-3788 (2014). [DOI]
February, 2014	- New publication - M. Oshima, A. Tani, T. Sugahara, K. Kitano, K. Ohgaki: "Reactions of HOCO Radicals through Hydrogen-Atom Hopping Utilizing Clathrate Hydrates as an Observational Matrix", Physical Chemistry Chemical Physics, 16, 3792-3797 (2014). [DOI]
January 25, 2014	The 50th Chemistry Class Marathon (Graduate School of Engineering Science, Osaka Univ.) was held in Toyonaka Campus. Environmental Physical Chemistry Gr. won first place in the lab-team competition!! Congratulations!
January 6, 2014	Best wishes for a happy new year. Hope you all are happy and healthy.
January, 2014	- New publication - Y. Matsumoto, T. Makino, T. Sugahara, K. Ohgaki: "Phase Equilibrium Relations for Binary Mixed Hydrate Systems Composed of Carbon Dioxide and Cyclopentane Derivatives", Fluid Phase Equilibria, 362, 379-382 (2014). [DOI]
December26-27, 2013	The physical chemistry seminor 2013 was held at Izushi, Hyogo, Japan.
December 13, 2013	Prof. Sugahara gave an invited lecture on gas hydrates in the seminor orgnized by the Kansai Branch of the Vacuum Society of Japan.
December 4, 2013	Congratulations! We are the champion 2013 of the inter-research-group softball game among 8 research groups in the Division of Chemical Engineering!
December 4-5, 2013	Prof. Sugahara reported the recent emperimental results of our research group at the 5th Symposium of Methane Hydrates (organized by AIST Japan) held in Tokyo.
December 2-3, 2013	Mr. Kitajima gave the presentation at "Sciences of H2O 2013" held in Hokkaido Univ., Japan.
November 20-22, 2013	Mr. Kitamura gave the presentation at "the 34th Japan Symposium on Thermophysical Properties" held in Toyama, Japan.
November 14-16, 2013	Mr. Matsumoto and Mr. Ogino gave the presentations at "the 54th High Pressure Conference of Japan" held in Niigata, Japan.
November 12, 2013	91 junior highscholl students and 10 teachers from the Toyonaka Dai-Hachi junior highschool and the highschool student from the Moriyama highschool visited our lab to learn a basic of gas hydrates.
September, 2013	- New publication - Y. Katsuta, S. Hashimoto, T. Kido, T. Sugahara, K. Ohgaki: "Enclathration of 2,3,3,3-Tetrafluoropropene into Structure-II Hydrate with Methane", Journal of Chemical & Engineering Data, 58(9), 2596-2599 (2013). [DOI]
September 16-18, 2013	Congratulations! Mr. Katsuta won the Best Presentation Award for Students in the Symposium of Division of Physical Properties at the 45th Autumn Meeting of The Society of Chemical Engineers, Japan. At the Autumn Meeting, Prof. Ohgaki also gave the invited presentations.
September, 2013	- New publication - A. Nishikawa, T. Tanabe, K. Kitamura, Y. Matsumoto, K. Ohgaki, T. Sugahara: "In situ Raman spectra of hydrogen in large cages of hydrogen+tetrahydrofuran mixed hydrates", Chemical Engineering Science, 101, 1-4 (2013). [DOI]
August 23, 2013	Congratulations! All undergraduates (in Environmental Physical Chemistry Gr.) taking the entrance exam of Graduate School of Engineering Science, Osaka University passed.
July, 2013	The research proposal (A-STEP FS-stage) on the utilization of clathrate hydrates (PI: Prof. Tani, co-PI: Prof. Sugahara) was accepted by JST.
July, 2013	The research proposal on the development of clathrate compounds (PI: Prof. Sugahara) was accepted as a Competitive Exploratory Research by Osaka Univ.
June, 2013	- New publication - T. Uchida, T. Sugahara, K. Ohgaki, H. Tanaka, S. Takeya, A. Tani: "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 -" (in Japanese), The Review of High Pressure Science and Technology, 23(2), 141-147 (2013). [DOI]
May 26-30, 2013	PhD student Mr. Matsumoto gave two poster presentations (ID-047 and -108) at PPEPPD2013 held in Iguazu falls (around the boundary between Argentina, Brazil and Paraguay).
May, 2013	- New publication - S. Suzuki, Y. Matsumoto, Y. Katsuta, S. Hashimoto, T. Sugahara, K. Ohgaki: "Structure-H Methane+1,1,2,2,3,3,4-Heptafluorocyclopentane Mixed Hydrate at Pressures up to 373 MPa", The Journal of Physical Chemistry A, 117(20), 4338-4341 (2013). [DOI]
May, 2013	We had a hiking plan at Nara. But it was cancelled due to rain.
May, 2013	Mr. Matsumoto was awarded to the research fellowship for young scientists from JSPS.
May, 2013	- New publication - Y. Katsuta, S. Suzuki, Y. Matsumoto, S. Hashimoto, T. Sugahara, K. Ohgaki: "Phase Equilibrium Relations and Structural Transition in the 1,1,1,2-Tetrafluoroethane Hydrate System", Journal of Chemical & Engineering Data, 58(5), 1378-1381 (2013). [DOI]
April 11, 2013	Welcome Mr. Kamo, Ms. Suzuki, Mr. Date, Mr. Fujimoto, and Mr. Washino as new undergraduates to the group.
April 10, 2013	Environmental Physical Chemistry Gr. welcomes Mr. Ueda, Mr. Kitamura, Mr. Bando, and Mr. Yamazaki as new M1 students.
April, 2013	- New publication - A. Tani, T. Sugahara, M. Oshima, K. Takeya, K. Ohgaki: "Characteristics of Gas Hydrates through Observation of Radical Species"(in Japanese), Low Temperature Science, 71, 187-192 (2013). [Link]
April 2012 - March 2013
March 25, 2013	Congratulations on your graduation!
March, 2013	- New publication - H. Sato, H. Sakamoto, S. Ogino, H. Mimachi, T. Kinoshita, T. Iwasaki, K. Sano, K. Ohgaki: "Self-Preservation of Methane Hydrate Revealed Immediately below the Eutectic Temperature of the Mother Electrolyte Solution", Chemical Engineering Science, 91, 86-89 (2013). [DOI]
March 17-19, 2013	Mr. Matsumoto and Mr. Katsuta gave their presentations at the 78th Annual Meeting of the Society of Chemical Engineers, Japan(SCEJ) held in the Toyonaka Campus of Osaka Univ.
March, 2013	- New publication - S. Suzuki, K. Yasuda, Y. Katsuta, Y. Matsumoto, S. Hashimoto, T. Sugahara, K. Ohgaki: "Isothermal Phase Equilibria for the CO2 + 1,1,1,2-Tetrafluoroethane and CO2 + 1,1-Difluoroethane Mixed-Gas Hydrate Systems", Journal of Chemical & Engineering Data, 58(3), 780-784 (2013). [DOI] The photo in our paper was adopted as a cover page of the Volume 58, Issue 3.
March 8, 2013	Congratualtions! Mr. Sakamoto, Mr. Suzuki, Mr. Nishikawa, Mr. Chikamochi, and Mr. Nishimura successfully defended their Master thesis defenses.
March 7, 2013	Prof. Ohgaki gave a last lecture before his retirement.
Jan. 26, 2013	The 49th Chemistry Class Marathon (Graduate School of Engineering Science, Osaka Univ.) was held in Toyonaka Campus. Ohgaki lab won first place in the lab-team competition!! Congratulations!
Jan. 23, 2013	PhD Student Mr. Matsumoto returned from Colorado School of Mines where he completed his study for 10 months.
Jan. 4, 2013	A Happy New Year!
Dec. 31, 2012	Prof. Hashimoto has resigned. He will work at the private research institute from 2013. Good luck!
Dec. 18-19, 2012	The physical chemistry seminor 2012 was held at Awaji island, Japan.
Dec. 6-7, 2012	Profs. Hashimoto and Sugahara gave presentations at the Research meeting "Sciences of H2O 2012" held at Hokkaido University.
Nov. 7-9, 2012	The 53rd High Pressure Conference of Japan was held at Osaka University Hall. Prof. Sugahara and Prof. Uchida (Hokkaido Univ.) orgnized the symposium "Development in Scientific Researches on Gas Hydrates." Mr. Suzuki and Mr. Osima gave oral presentations. Profs. Hashimoto and Sugahara, Mr. Sakamoto, Mr. Tanabe, and Mr. Katsuta gave poster presetations at the symposium.
Nov. 3, 2012	We opened our lab for school festival "Machikane festival 2012".
Sep. 21, 2012	Congratulations! Mr. Nishikawa won the Best Presentation Award for Students in the Symposium of Division of Physical Properties at the 44th Autumn Meeting of The Society of Chemical Engineers, Japan. At the Autumn Meeting, Prof. Sugahara and Mr. Nishimura also gave the presentations, respectively.
September, 2012	- New publication - K.W. Han, Y.-J. Lee, J.S. Jang, T.-I. Jeon, J. Park, T. Kawamura, Y. Yamamoto, T. Sugahara, T. Vogt, J.-W. Lee, Y. Lee, J.-H. Yoon, : "Fast and Reversible Hydrogen Storage in Channel Cages of Hydroquinone Clathrate", Chemical Physics Letters, 546, 120-124 (2012). [DOI]
September 10-13, 2012	Prof. Hashimoto gave a presentation in MIXING 2012, 14th European Conference on Mixing (held at Warsaw, Poland).
August, 2012	Congratulations! All students taking the entrance exam of Graduate School of Engineering Science, Osaka University passed.
August, 2012	- New publication - T. Kitajima, N. Ohtsubo, S. Hashimoto, T. Makino, D. Kodama, K. Ohgaki: "Study on Prompt Methane Hydrate Formation Derived by Addition of Ionic Liquid", American Chemical Science Journal, 2(3), 100-110 (2012). [Link]
August 21-27, 2012	Prof. Sugahara visited Colorado School of Mines to discuss the recent results on gas hydrates.
August, 2012	- New publication - S. Hashimoto, K. Kawamura: "Viscosity Reduction with Self-Assembly of Cationic Surfactant on Tetra-n-butyl Ammonium Bromide Semi-Clathrate Hydrate Aqueous Slurry", American Chemical Science Journal, 2(3), 69-85 (2012). [Link]
August 10, 2012	In the open-campus of Grad. School of Eng. Sci., Osaka Univ., we introduced our research activities on gas hydartes and showed "burning methane hydrate".
June, 2012	- New publication - S. Hashimoto, Y. Chikamochi, Y. Inoue: "Visualization of Partially Mixed Region by Use of Periodical Reaction", Chem. Eng. Sci, 80, 30-38 (2012). [DOI]
June 17-23, 2012	Prof. Hashimoto gave a presentation in North American Mixing Forum "Mixing XXIII" (held at Mayan Riviera, Mexico).
June, 2012	- New publication - S. Hashimoto, K. Yamamoto, T. Tsuda, Y. Inoue: "Modeling on Hydrogen Absorption in Tetrahydrofuran Hydrate", J. Chem. Eng. Japan, 45(6), 444-451 (2012). [DOI]
May, 2012	- New publication - S. Hashimoto, R. Osaka, M. Kawamata: "Analysis on Laminar Chaotic Mixing Based on Configuration of Streak Lobes in an Impeller-Agitated Vessel", Ind. Eng. Chem. Res., 51, 6939-6947 (2012). [DOI]
May 26, 2012	We went hiking in Nara (from Mt. Miminasshi to Kashihara Shrine, via the ruins of Fujiwara Palace, the first capital of Japan)
May, 2012	- New publication - N. Kobayashi, T. Minami, A. Tani, M. Nakagoshi, T. Sugahara, K. Takeya, K. Ohgaki: "Intermolecular Hydrogen Transfer in Isobutane Hydrate", Energies, 5(6), 1705-1712 (2012). [DOI]
April 20, 2012	Congratulations, Dr. Hashimoto. Two papers published in "Journal of Chemical Engineering of Japan" and "Kagaku Kogaku Ronbunshu" were selected as the Outstanding paper award 2011 of The Society of Chemical Engineers, Japan.
April, 2012	- New publication - T. Sugahara: "Molecular Hydrogen Storage at Milder Temperatures and Pressures", Departmental Bulletin Paper of Low-Temperature Center in Osaka Univ., 157, 1-5 (2012).
April 12, 2012	Welcome, six undergraduates! Mr. Urabe, Mr. Kitamura, Mr. Hirosaki, Mr. Matsukawa, Mr. Yamazaki, and Ms. Wakisaka join our group.
April 11, 2012	Welcome, new Master course students! Mr. Ogino, Mr. Katsuta, Mr. Kitajima, and Mr. Tanabe join our group.
April, 2012	- New publications - H. Miyauchi, K. Yasuda, Y. Matsumoto, S. Hashimoto, T. Sugahara, K. Ohgaki: "Isothermal Phase Equilibria for the HFC-32+HFC-134a Mixed-Gas Hydrate System", J. Chem. Thermodyn., 47C, 1-5 (2012). [DOI] T. Sugahara, H. Miyauchi, S. Suzuki, Y. Matsumoto, K. Yasuda, T. Makino, K. Ohgaki: "Isothermal Phase Equilibria for the Xenon+Cyclopropane Mixed-Gas Hydrate System", J. Chem. Thermodyn., 47C, 13-16 (2012). [DOI]
April 1, 2012	Welcome! Dr. Hashimoto, Mr. Chikamochi, and Mr. Nishimura join our group.
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April 2011 - March 2012
March 27, 2012	PhD student, Mr. Matsumoto departed from Itami airport to study at Colorado School of Mines for 10 months.
March, 2012	- New publication - S. Hashimoto, H. Ito, K. Ohgaki, and Y. Inoue: "Effect of Impeller Agitation on Preparation of Tetra-n-Butyl Ammonium Bromide Semiclathrate Hydrate Slurries", Int'l J. Chem. Eng., 2012, 856120-1-8 (2012). [DOI]
March 22, 2012	Congratulations on your graduation!
March, 2012	- New publication - T. Sugahara, Y. Kobayashi, A. Tani, T. Inoue, and K. Ohgaki: "Intermolecular Hydrogen Transfer between Guest Species in Small and Large Cages of Methane + Propane Mixed Gas Hydrates", J. Phys. Chem. A, 116(10), 2405-2408 (2012). [DOI]
March 7, 2012	Congratualtions! Mr. Keisuke Sugahara and Mr. Takaaki Tsuda successfully defended their PhD thesis defenses.
March 7, 2012	Congratualtions! Mr. Inoue, Mr. Ohtsubo, Ms. Takahashi, Mr. Fujisawa, and Mr. Yasuda successfully defended their Master thesis defenses.
March 3, 2012	Mr. Jeon and Ms. Munehiro gave the presentations at The 14th SCEJ students meeting (Western Japan) in Ube, Japan.
Feb. 27, 2012	Mr. Jeon completed his one-year research and educational projects in Osaka University as scheduled. He returned to the Republic of Korea from KIX on March 4, 2012.
January, 2012	- New publication - T. Sugahara, K. Ohgaki: "Science and Engineering on Gas Hydrates"(in Japanese), Chemical Education, 60(1), 8-13 (2012).
Jan. 21, 2012	The 48th Chemistry Class Marathon (Graduate School of Engineering Science, Osaka Univ.) was held in Toyonaka Campus. Ohgaki lab took second place in the lab-team competition!! Congratulations!
January, 2012	- New publication - Y. Fujisawa, T. Tsuda, S. Hashimoto, T. Sugahara, K. Ohgaki: "Thermodynamic Stability of Hydrogen + Tetra-n-butyl Phosphonium Bromide Mixed Semi-clathrate Hydrate", Chem. Eng. Sci., 68(1), 660-662 (2012). [DOI]
Jan. 4, 2012	Happy New Year!!
Dec. 28, 2011	Thank you for all. May 2012 be happy and fruitful for you.
Dec. 22-23, 2011	The physical chemistry seminor 2011 was held at Arima-Onsen in Kobe, Japan.
Dec. 19-21, 2011	Mr. Tsuda and Mr. Matsumoto gave the presentations at The 11th Global COE International Symposium Program in Osaka, Japan.
December, 2011	- New publication - T. Sugahara, A. Endo, H. Miyauchi, S.A. Choi, Y. Matsumoto, K. Yasuda, S. Hashimoto, K. Ohgaki: "High-Pressure Phase Equilibrium and Raman Spectroscopic Studies on the 1,1-Difluoroethane (HFC-152a) Hydrate System", J. Chem. Eng. Data, 56(12), 4592-4596 (2011). [DOI]
Dec. 8-9, 2011	Mr. Ohtsubo, Ms. Takahashi, and Mr. Yasuda gave the presentations at the 4th Kansai/Chushikoku/Kyushu-Joint SCEJ Meeting in Fukui, Japan. Prof. Sugahara also gave an invited lecture there.
Nov. 30-Dec. 1, 2011	Mr. Yasuda and Mr. Oshima reported their recent emperimental results at the 3rd Symposium of Methane Hydrates (organized by AIST Japan) held in Tokyo.
Nov. 9-11, 2011	Mr. Tsuda gave a presentation at the 52nd High Pressure Conference of Japan held in Okinawa, Japan.(organized by The Japan Society of High Pressure Science and Technology (JSHPST))
Sep. 20, 2011	Prof. Ohgaki gave a lecture in the Doshisha Harris Forum held at Doshisha University, Kyoto, Japan.
Sep. 14-16, 2011	Mr. Fujisawa gave a presentation at the 43rd Autumn Meeting of The Society of Chemical Engineers, Japan. Mr. Fujisawa won the good presentation award(for students) in the symposium of Division of Physical Properties, "Physical property research for industry -from basic research to application-". Congratualtions!
Sep. 5-6, 2011	Mr. Inoue and Mr. Ohshima gave 2 presentations at Symposium on Ice and Water at the Institute of Low Temperature Science, Hokkaido University, Japan.
July 19, 2011	Prof. Ohgaki won the 2011 Osaka University Achievement Awards in Education! Congratulations!!
July. 17-21, 2011	We gave 8 presentations at 7th International Conference on Gas Hydrates (ICGH7) held in Edinburgh, UK. Yuuki Matsumoto, Hiroshi Miyauchi, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki: "Structural Phase Transitions of Methane+Ethane Mixed-gas Hydrate Induced by 1,1-Dimethylcyclohexane" (Oral) Takaaki Tsuda, Shingo Amano, Yuuya Fujisawa, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki: "Enhancement of Hydrogen Storage Rate in Pre-treated Semi-clathrate Hydrates" (Poster) Takeshi Sugahara, Pinnelli S. R. Prasad, Vahid Taghikhani, Takaaki Tsuda, Kazunari Ohgaki, E. Dendy Sloan, Carolyn A. Koh, Amadeu K. Sum: "Molecular Storage of Hydrogen in Simple and Binary Clathrate Hydrates" (Poster) Takashi Makino, Yuuki Matsumoto, Hiroki Masuda, Takeshi Sugahara, Kazunari Ohgaki: "Effect of Ionic Liquid on Hydrate Formation Rate in Carbon Dioxide Hydrates" (Poster) Motoi Oshima, Shinsuke Kitani, Atsushi Tani, Katsuhisa Kitano, Takeshi Sugahara, Kazunari Ohgaki: "Identification of Products Induced by gamma-ray Irradiation in CO2 Hydrate" (Poster) Shunsuke Hashimoto, Kazushi Kawamura, Hiroyuki Ito, Masahiro Nobeoka, Kazunari Ohgaki, Yoshiro Inoue: "Rheological Study on Tetra-n-Butyl Ammonium Salt Semi-Clathrate Hydrate Slurries" (Poster) Shunsuke Hashimoto, Hiroyuki Ito, Kazunari Ohgaki, Yoshiro Inoue: "Effect of Impeller Agitation on Preparation of Tetra-n-Butyl Ammonium Bromide Semi-Clatharte Hydrate Slurries" (Poster) Pinnelli S.R. Prasad, Takeshi Sugahara, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh: "Structural Stability of (t-BuNH2-H2/CH4) Binary Hydrates" (Poster)
June, 2011	- New publication - Y. Matsumoto, H. Miyauchi, T. Makino, T. Sugahara, K. Ohgaki: "Structural Phase Transitions of Methane+Ethane Mixed-Gas Hydrate Induced by 1,1-Dimethylcyclohexane", Chem. Eng. Sci., 66, 2672-2676 (2011). [DOI]
May, 2011	- New publications - Y. Joden, N. Ohtsubo, N.Q. Khanh, K. Ohgaki, A. Tsuji, T. Nakagawa: "Liquefaction of SF6 in Nanobubble Solutions under Atmospheric Conditions", Physics and Chemistry of Ice, 2010, 9-11 (2011). T. Sugahara, P.S.R. Prasad, E.D. Sloan, A.K. Sum, C.A. Koh, K. Ohgaki: "Large-Cage Occupancies of Molecular Hydrogen in Binary Clathrate Hydrates Dependent on Pressures", Physics and Chemistry of Ice, 2010, 117-125 (2011). M. Oshima, S. Hashimoto, W. Shimada, A. Tani, T. Sugahara, K. Ohgaki: "In-situ Raman Observation on Aqueous solution around Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate", Physics and Chemistry of Ice, 2010, 141-146 (2011). S. Hashimoto, K. Kawamura, H. Ito, K. Ohgaki, Y. Inoue: "Rheological Characteristics of Slurry Containing Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate Crystal and Solution", Physics and Chemistry of Ice, 2010, 203-208 (2011). H. Mimachi, M. Takahashi, T. Iwasaki, T. Kinoshita, T. Sugahara, H. Sato, K. Ohgaki: "Raman Spectroscopic Analysis of Mixed Gas Hydrate Crystals", Physics and Chemistry of Ice, 2010, 243-247 (2011). K. Takato, A. Tani, T. Sugahara, K. Takeya, K. Ohgaki: "Decay Mechanisms of Radiation-Induced Radicals in Sulfur Hexafluoride Clathrate Hydrate", Physics and Chemistry of Ice, 2010, 261-266 (2011). K. Takeya, A. Tani, T. Sugahara, K. Ohgaki: "Thermal Stability of Radicals Induced in Xenon Hydrate", Physics and Chemistry of Ice, 2010, 267-271 (2011). A. Tani, K. Takato, T. Sugahara, K. Ohgaki, K. Takeya: "In-situ ESR Observation of Free Radicals in Gas Hydrates under High Pressure", Physics and Chemistry of Ice, 2010, 273-276 (2011). T. Tsuda, S. Hashimoto, T. Sugahara, K. Ohgaki: "Effect of Cyclopentane on Cage Occupancy of Hydrogen in Clathrate Hydrates", Physics and Chemistry of Ice, 2010, 277-281 (2011).
May, 2011	Mr. Tsuda was awarded to the research fellowship for young scientists from JSPS.
April, 2011	- New publication - Y.-J. Lee, K.W. Han, J.S. Jang, T.-I. Jeon, J. Park, T. Kawamura, Y. Yamamoto, T. Sugahara, T. Vogt, J.-W. Lee, Y. Lee, J.-H. Yoon: "Selective CO2 Trapping in Guest-Free Hydroquinone Clathrate Prepared by Gas-Phase Synthesis", ChemPhysChem, 12, 1056-1059 (2011). [DOI]
April 13, 2011	Ohgaki Lab welcomes Mr. Okuyama, Mr. Katsuta, Mr. Kitajima, Mr. Tanabe, and Ms. Munehiro as new undergraduates to the group.
April 11, 2011	Ohgaki Lab welcomes Mr. Sakamoto, Mr. Suzuki, and Mr. Nishikawa as new M1 students to the group.
April 6, 2011	Mr. Tsuda and Mr. Matsumoto got the research fund from GCOE program "Global Education and Research Center for Bio-Environmental Chemistry ".
April 5, 2011	Mr. Jeon joined our lab as a auditor. He comes from the Changwon National University. He will be spending one year (until the end of February) with us.
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Sep.l 2010 - March 2011
March 25, 2011	Congratulations on your graduation!
March 9, 2011	Mr. Tsuda reported his recent results and possible technology foresights about the hydrogen storage in clathrate hydrates at the symposium of Venture Business Laboratory, Center for Advanced Science and Innovation, Osaka University.
March 3, 2011	Congratualtions! Mr. Sumihiro Suzuki, Mr. Shin-ichiro Asahara, Ms. Aki Endo, Mr. Akio Nishikawa, Ms. Yukiko Koumoto, and Mr. Hiroya Sakamoto successfully defended their graduation thesis defenses.
Feb. 25, 2011	Mr. Choi and Mr. Kim completed their one-year research and educational projects in Osaka University as scheduled. They returned to the Republic of Korea from KIX.
Feb. 15-16, 2011	Congratualtions! Mr. Shingo Amano, Mr. Takahiro Kinoshita, Mr. Yasuhiro Joden, Mr. Yuuki Matsumoto, Mr. Kenji Takato, and Mr. Hiroshi Miyauchi successfully defended their Master thesis defenses.
Jan. 29, 2011	The 47th Chemistry Class Marathon (Graduate School of Engineering Science, Osaka Univ.) was held in Toyonaka Campus. Ohgaki lab took second place in the lab-team competition!! Congratulations!
Jan. 4, 2011	Happy New Year!
Dec. 28, 2010	Thank you for all. May the coming year be happy and fruitful for you.
Dec. 6-10, 2010	Two students from University Technology Malaysia visited Ohgaki lab. as short-period internship students.
Dec. 2, 2010	Mr. Matsumoto and Mr. Kinoshita reported their recent emperimental results at the 2nd Symposium of Methane Hydrates (organized by AIST Japan) held in Tokyo.
Nov. 29, 2010	Mr. Tsuda and Mr. Amano with Prof. Hashimoto (collaborator) returned from the Oak Ridge National Laboratory (ORNL).
Nov. 13-14, 2010	Almost all lab. members visited the production plant of natural-gas hydrates (NGH) pellets at the power plant of the Chugoku Electric Power Co.,Inc in Yanai City of Yamaguchi Pref.
Nov., 2010	- New publication - S. Hashimoto, T. Makino, Y. Inoue, K. Ohgaki: "Three-Phase Equilibrium Relations and Hydrate Dissociation Enthalpies for Hydrofluorocarbon Hydrate Systems: HFC-134a, -125, and -143a Hydrates", Journal of Chemical & Engineering Data, 55(11), 4951-4955 (2010). [DOI]
Nov., 2010	- New publication - S. Amano, T. Tsuda, S. Hashimoto, T. Sugahara, K. Ohgaki: "Competitive Cage-occupancy of Hydrogen and Argon in Structure-II Hydrates", Fluid Phase Equilibria, 298(1), 113-116 (2010). [DOI]
Oct. 26, 2010	Mr. Tsuda and Mr. Amano with Prof. Hashimoto (collaborator) left for the Oak Ridge National Laboratory (ORNL) in USA. They will measure hydrate samples at ORNL for a month.
Oct. 20-22, 2010	Mr. Amano reported his recent emperimental results at the 51st "The High Pressure Conference of Japan" held in Sendai (organized by The Japan Society of High Pressure Science and Technology (JSHPST)).
Oct., 2010	- New publication - M. Oshima, W. Shimada, S. Hashimoto, A. Tani, K. Ohgaki: "Memory Effect on Semi-clathrate Hydrate Formation　−A Case Study of Tetragonal Tetra-n-butyl Ammonium Bromide Hydrate−", Chemical Engineering Science, 65(20), 5442-5446 (2010).[DOI]
Oct. 6, 2010	Prof. Sugahara received the honor "The Top Thirty Young Researchers of Osaka University (HISHO 30)" ("HISHO" Program for Young Researchers).
Oct. 5, 2010	Prof. Ohgaki gave a special lecture on hydrogen bond at the continuing education program organized by Osaka University NANO-program.
Sep., 2010	- New publication - Y. Matsui, Y. Ogura, H. Miyauchi, T. Makino, T. Sugahara, K. Ohgaki: "Isothermal Phase Equilibria for Binary Hydrate Systems of Carbon Dioxide + Ethane and Carbon Dioxide + Tetrafluoromethane", Journal of Chemical & Engineering Data, 55(9), 3297-3301 (2010).[DOI]
Sep., 2010	- New publication - T. Sugahara, J.C. Haag, A.A. Warntjes, P.S.R. Prasad, E.D. Sloan, A.K. Sum, C.A. Koh: "Large-Cage Occupancies of Hydrogen in Binary Clathrate Hydrates Dependent on Pressures and Guest Concentrations", Journal of Physical Chemistry C, 114(35), 15218-15222 (2010).[DOI]
Sep. 5-10, 2010	We gave 10 presentations at 12th International Conference on Physics and Chemistry of Ice (PCI2010) held in Hokkaido University, Japan. 6-B2-2 Yasuhiro Joden, Naoto Ohtsubo, Nguyen Quoc Khanh, Kazunari Ohgaki, Atsushi Tsuji, and Takaharu Nakagawa "Liquefaction of SF6 in Nanobubble Solutions under Atmospheric Conditions" 7-A1-2 Kei Takeya, Iwao Kawayama, Hironaru Murakami, Kazunari Ohgaki, and Masayoshi Tonouchi "Terahertz Spectroscopy of Gas Hydrates" 7-P-06 Hiroko Mimachi, Masahiro Takahashi, Toru Iwasaki, Takahiro Kinoshita, Takeshi Sugahara, Hiroshi Sato, and Kazunari Ohgaki "Raman Spectroscopic Analysis of Mixed Gas Hydrate Crystals" 9-B2-1 Takeshi Sugahara, Pinnelli S.R. Prasad, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh, and Kazunari Ohgaki "Large-Cage Occupancy of Molecular Hydrogen in Binary Clathrate Hydrates Dependent on Pressures" (Invited) 9-B3-3 Motoi Oshima, Shunsuke Hashimoto, Wataru Shimada, Atsushi Tani, Takeshi Sugahara, and Kazunari Ohgaki "in-situ Raman Observation on Aqueous solution around Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate" 9-P-01 Shunsuke Hashimoto, Kazushi Kawamura, Hiroyuki Ito, Kazunari Ohgaki, and Yoshiro Inoue "Rheological Characteristics of Slurry Containing Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate Crystal and Solution" 9-P-02 Kenji Takato, Atsushi Tani, Takeshi Sugahara, Kei Takeya, and Kazunari Ohgaki "Decay Mechanisms of Radiation-Induced Radicals in Sulfur Hexafluoride Clathrate Hydrate" 9-P-03 Kei Takeya, Atsushi Tani, Takeshi Sugahara, and Kazunari Ohgaki "Thermal Stability of Radicals Induced Xenon Hydrate" 9-P-04 Atsushi Tani, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki, Kei Takeya "In-situ ESR Observation of Free Radicals in Gas Hydrates under High Pressure" 9-P-13 Takaaki Tsuda, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki "Effect of Cyclopentane on Cage Occupancy of Hydrogen in Clathrate Hydrates"