Updated on 2026/06/25

写真a

 
watanabe toshio
 
Organization
Center for Information Infrastructure Associate Professor for Institute Management
Title
Associate Professor for Institute Management
External link

Degree

  • 博士(理学) ( 筑波大学 )

Research Interests

  • High Performance Computing

  • Computational Chemistry

  • Molecular Dynamics Simulation

  • High Performance Scientific Computing

  • Solvation effect

  • Fragment Molecular Orbital methods

Research Areas

  • Nanotechnology/Materials / Fundamental physical chemistry  / Computational chemistry / Quantum chemistry

  • Informatics / High performance computing

Education

  • University of TSUKUBA   Graduate School of Chemistry

    1995.4 - 2000.3

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  • University of Tsukuba   First Cluster of Colleges   College of Natural Sciences

    1991.4 - 1995.3

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  • Tamura High School

    1988.4 - 1991.3

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Research History

  • Institute of Science Tokyo   Center for Information Infrastructure   Associate Professor for Institute Management

    2024.10

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    Country:Japan

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  • Tokyo Institute of Technology   Global Scientific Information and Computing Center   Associate Professor for Institute Management

    2021.10 - 2024.9

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    Country:Japan

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  • Edogawa University   College of Media and Communication Department of Communication and Business   Part-time lecturer

    2020.4 - 2023.3

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    Country:Japan

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  • Tokyo Institute of Technology   Global Scientific Information and Computing Center   Specially Appointed Associate Professor

    2009 - 2021.9

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  • National Institute of Advanced Industrial Science and Technology   Grid Technology Research Center / Research Institute of Computational Science   Postdoctral researcher

    2002 - 2009

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  • University of Tsukuba   Department of Chemistry   Assistant Professor

    2000 - 2002

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Professional Memberships

Papers

  • CP violating effects in 210Fr and prospects for new physics beyond the Standard Model Reviewed

    Nanako Shitara, Nodoka Yamanaka, Bijaya Kumar Sahoo, Toshio Watanabe, Bhanu Pratap Das

    Journal of High Energy Physics   2021 ( 124 )   2021.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/jhep02(2021)124

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    Other Link: http://link.springer.com/article/10.1007/JHEP02(2021)124/fulltext.html

  • Relativistic many-body analysis of the electric dipole moment enhancement factor of 210Fr and associated properties

    Nanako Shitara, B. K. Sahoo, T. Watanabe, B. P. Das

    2019.12

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    The relativistic coupled-cluster (RCC) method is a powerful many-body method,
    particularly in the evaluation of electronic wave functions of heavy atoms and
    molecules, and can be used to calculate various atomic and molecular
    properties. One such atomic property is the enhancement factor (R) of the
    atomic electric dipole moment (EDM) due to an electron EDM needed in electron
    EDM searches. The EDM of the electron is a sensitive probe of CP-violation, and
    its search could provide insights into new physics beyond the Standard Model,
    as well as open questions in cosmology. Electron EDM searches using atoms
    require the theoretical evaluation of R to provide an upper limit for the
    magnitude of the electron EDM. In this work, we calculate R of 210Fr in the
    ground state using an improved RCC method, and perform an analysis on the
    many-body processes occurring within the system. The RCC method allows one to
    capture the effects of both the electromagnetic interaction and P- and
    T-violating interactions, and our work develops this method beyond what had
    been implemented in the previous works. We also perform calculations of
    hyperfine structure constants, electric dipole transition matrix elements, and
    excitation energies, to assess the accuracy of R and the success of our
    improved method. Finally, we present calculations of R with corrections due to
    Breit interaction effects, approximate quantum electrodynamics (QED) effects,
    and some leading triple excitation terms added perturbatively, to assess how
    significantly these terms contribute to the result. We obtain a final value of
    R = 799, with an estimated 3% error, which is about 11% smaller than a
    previously reported theoretical calculation.

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    Other Link: http://arxiv.org/pdf/1912.02981v1

  • Conformational Analysis of the Polymer-Chain Gently Restricted by Rotaxane Structure Reviewed

    Toshio WATANABE, Susumu KAWAUCHI

    Journal of Computer Chemistry, Japan   17 ( 5 )   232 - 234   2018

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Society of Computer Chemistry Japan  

    DOI: 10.2477/jccj.2018-0065

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  • Parallel Fock Matrix Construction with Distributed Shared Memory Model for the FMO-MO Method Reviewed

    Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Toru Yagi, Takayoshi Ishimoto, Tsutomu Ikegami, Hiroto Tadano, Tetsuya Sakurai, Umpei Nagashima

    JOURNAL OF COMPUTATIONAL CHEMISTRY   31 ( 13 )   2381 - 2388   2010.10

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    DOI: 10.1002/jcc.21531

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  • Fragment Molecular Orbital (FMO) and FMO-MO Calculations of DNA: Accuracy Validation of Energy and Interfragment Interaction Energy Reviewed

    Toshio Watanabe, Yuichi Inadomi, Hiroaki Umeda, Kaori Fukuzawa, Shigenori Tanaka, Tatsuya Nakano, Umpei Nagashima

    JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE   6 ( 6 )   1328 - 1337   2009.6

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    DOI: 10.1166/jctn.2009.1182

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  • グリッド技術を用いた大規模分子軌道計算プログラムの開発—FMO‐MO法によるLysozymeの溶媒和と分子軌道—

    長嶋雲兵, 長嶋雲兵, 渡辺寿雄, 渡辺寿雄, 稲富雄一, 石元孝佳, 石元孝佳, 梅田宏明, 梅田宏明, 櫻井鉄也, 櫻井鉄也, 櫻井鉄也

    CICSJ Bull (Div Chem Inf Comput Sci Chem Soc Jpn)   25   40-46   2008.11

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  • FMO-MO method as an initial guess generation for SCF calculation: Case of (-)-epicatechin gallate Reviewed

    Katsuhiro Tamura, Toshio Watanabe, Takayoshi Ishimoto, Hiroaki Umeda, Yuichi Inadomi, Umpei Nagashima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   81 ( 2 )   254 - 256   2008.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/bcsj.81.254

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  • Ab initio MO-MD simulation based on the fragment MO method. A case of (-)-epicatechin gallate with STO-3G basis set Reviewed

    Katsuhiro Tamura, Toshio Watanabe, Takayoshi Ishimoto, Umpei Nagashima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   81 ( 1 )   110 - 112   2008.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/bcsj.81.110

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  • Difference in the potential energy surfaces from the fragment MO method and conventional ab initio SCF-MO method. A case of a surface for ring rotation of (-)-epicatechin gallate using the STO-3G basis set Reviewed

    Katsuhiro Tamura, Toshio Watanabe, Takayoshi Ishimoto, Umpei Nagashima

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   80 ( 10 )   1939 - 1941   2007.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/bcsj.80.1939

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  • Molecular Orbital Calculation for Large Molecule

    WATANABE Toshio, INADOMI Yuichi, ISHIMOTO Takayoshi, UMEDA Hiroaki, SAKURAI Tetsuya, NAGASHIMA Umpei

    Journal of Computer Chemistry, Japan   6 ( 3 )   217 - 226   2007.9

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    Language:Japanese   Publisher:Society of Computer Chemistry, Japan  

    We have been developing a computational tool to obtain the molecular orbitals for large molecules such as proteins and molecular clusters without excessive calculation costs. In our method, the entire Fock matrix is generated using density matrix obtained from the fragment molecular orbital method, which is applicable to large systems and suitable for parallel processing. To solve the large scale generalized eigenproblem, we use the Sakurai-Sugiura method. This method solves several liner equations which have large granularity and is well suited to master-worker type execution. It is suffic...

    DOI: 10.2477/jccj.6.217

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  • COMP 293-Efficient parallel Fock matrix construction on the Grid Reviewed

    Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Takayoshi Ishimoto, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   234   2007.8

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  • COMP 303-Interaction analysis between EGF receptor and EGF by fragment molecular orbital calculation Reviewed

    Toshio Watanabe, Takayoshi Ishimoto, Yutaka Tamura, Yuichi Inadomi, Hiroaki Umeda, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   234   2007.8

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  • DNA and estrogen receptor interaction revealed by fragment molecular orbital calculations Reviewed

    Toshio Watanabe, Yuichi Inadomi, Kaori Fukuzawa, Tatsuya Nakano, Shigenori Tanaka, Lennart Nilsson, Umpei Nagashima

    JOURNAL OF PHYSICAL CHEMISTRY B   111 ( 32 )   9621 - 9627   2007.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/jp071710v

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  • COMP 273-Analysis of protonic and deuteronic basis functions using Gaussian-type functions Reviewed

    Takayoshi Ishimoto, Masanori Tachikawa, Yuichi Inadomi, Hiroaki Umeda, Toshio Watanabe, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   234   2007.8

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  • Molecular orbital of fragment molecular orbital method with Sakurai-Sugiura method on grid computing environment Reviewed

    Umpei Nagashima, Toshio Watanabe, Yuichi Inadomi, Hiroaki Umeda, Takayoshi Ishimoto, Tetsuya Sakurai

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   233   21 - 21   2007.3

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  • Molecular Orbital Calculation for Large Molecule

    WATANABE TOSHIO, WATANABE TOSHIO, INADOMI YUICHI, ISHIMOTO TAKAYOSHI, ISHIMOTO TAKAYOSHI, UMEDA HIROAKI, UMEDA HIROAKI, SAKURAI TETSUYA, SAKURAI TETSUYA, SAKURAI TETSUYA, NAGASHIMA UMPEI, NAGASHIMA UMPEI

    J Comput Chem Jpn   6 ( 3 )   217-226 (J-STAGE) - 226   2007

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    Language:Japanese   Publisher:Society of Computer Chemistry, Japan  

    We have been developing a computational tool to obtain the molecular orbitals for large molecules such as proteins and molecular clusters without excessive calculation costs. In our method, the entire Fock matrix is generated using density matrix obtained from the fragment molecular orbital method, which is applicable to large systems and suitable for parallel processing. To solve the large scale generalized eigenproblem, we use the Sakurai-Sugiura method. This method solves several liner equations which have large granularity and is well suited to master-worker type execution. It is sufficient for parallel processing on computers of distributed memory parallel architecture. The method is favorable for calculation of only a small number of eigenvalues and corresponding eigenvectors of a large scale matrix. Our method has high parallelization efficiency and the communication cost is negligible to the total calculation costs. Thus, this is one of the right applications for using Grid technology.<BR>Elapsed times to obtain MOs close to HOMO-LUMO of Lysozyme (129 amino-acid residues and solvent molecules, total 8258 atoms) with FMO/HF/STO-3G (20758 basis functions)) and model DNA (40 A-T base pairs, total 2636 atoms with FMO/HF/STO-3G (10108 basis functions)) are less than about 5 hours and 1 hour, respectively, on only 128 Dual Opteron cluster. The position of HOMO and LUMO in the Lysozyme and water cluster case is strongly dependent on distribution and the number of solvent water molecules. Careful treatment for solvent molecules is required to have consistent results. In the case of model DNA, HOMO and LUMO are located at the center and the terminal of the DNA chain, respectively.

    DOI: 10.2477/jccj.6.217

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  • A master-worker type eigensolver for molecular orbital computations Reviewed

    Tetsuya Sakurai, Yoshihisa Kodaki, Hiroto Tadano, Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Umpei Nagashima

    APPLIED PARALLEL COMPUTING   4699   617 - +   2007

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  • Application of FMO-MO method for large-scale molecule: Fluctuation of solvation Reviewed

    Toshio Watanabe, Yuichi Inadomi, Hiroaki Umeda, Takayoshi Ishimoto, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   232   388 - 388   2006.9

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  • Fock matrix construction using Ninf-G GridRPC programming middleware Reviewed

    Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Takayoshi Ishimoto, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   232   298 - 298   2006.9

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  • Accuracy of FMO-MO for Large Scale Molecule Reviewed

    Yuichi Inadomi, Hiroaki Umeda, Toshio Watanabe, Umpei Nagashima, Takayoshi Ishimoto

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   231   2006.3

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  • Application of FMO-MO fior Large-Scale Molecule: Effect of solvent molecules Reviewed

    Toshio Watanabe, Yuichi Inadomi, Hiroaki Umeda, Takayoshi Ishimoto, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   231   2006.3

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  • Parallel Fock matrix construction on the Grid Reviewed

    Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Takayoshi Ishimoto, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   231   2006.3

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  • Development of protonic and deuteronic basis functions using Gaussian-type functions Reviewed

    Takayoshi Ishimoto, Masanori Tachikawa, Yuichi Inadomi, Hiroaki Umeda, Toshio Watanabe, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   231   2006.3

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  • Drug discovery using grid technology

    Hitoshi Goto, Sigeaki Obata, Toshiyuki Kamakura, Naofumi Nakayama, Mitsuhisa Sato, Yoshihiro Nakajima, Umpei Nagashima, Toshio Watanabe, Yuichi Inadomi, Masakatsu Ito, Takeshi Nishikawa, Tatsuya Nakano, Lennart Nilsson, Shigenori Tanaka, Kaori Fukuzawa, Yuichiro Inagaki, Michiaki Hamada, Hiroshi Chuman

    Modern Methods for Theoretical Physical Chemistry of Biopolymers   227 - 248   2006

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    DOI: 10.1016/B978-044452220-7/50076-9

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  • A hybrid parallel method for large sparse eigenvalue problems on a grid computing environment using Ninf-G/MPI Reviewed

    T Sakurai, Y Kodaki, H Umeda, Y Inadomi, T Watanabe, U Nagashima

    LARGE-SCALE SCIENTIFIC COMPUTING   3743   438 - 445   2006

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  • Hartree-Fock and density functional theory calculations for the reaction mechanism of nitric oxide reductase cytochrome P450nor from Fusarium oxysporum Reviewed

    TSUKAMOTO Koki, WATANABE Toshio, WATANABE Toshio, NAGASHIMA Umpei, AKIYAMA Yutaka

    J Mol Struct   732 ( 1-3 )   87-98 - 98   2005.11

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    DOI: 10.1016/j.theochem.2005.06.040

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  • Large-Scale Molecular Orbital Calculation using FMO-MO Method : characters of eigenvalue problem to be solved in FMO-MO method(<Special Issue>Algorithms for Matrix・Eigenvalue Problems and their Applications)

    Inadomi Yuichi, Umeda Hiroaki, Watanabe Toshio, Sakurai Tetsuya, Nagashima Umpei

    Transactions of the Japan Society for Industrial and Applied Mathematics   15 ( 2 )   169 - 179   2005.6

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    Language:Japanese   Publisher:The Japan Society for Industrial and Applied Mathematics  

    Characters of generalized eigenvalue problem in FMO-MO method, which is one of the fastest methods to calculate molecular orbitals of large molecules such as proteins, are described in order to solve it efficiently. Fock matrix to solve looks dense, because 7.6% of elements have significant value even for a large molecule. The frontier orbital energies can be estimated from fragment and fragment-pair orbital energy distributions in FMO method, which is performed in FMO-MO calculation, and then the frontier orbitals can be obtained efficiently by the method to solve eigenvalue problem in a s...

    DOI: 10.11540/jsiamt.15.2_169

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  • Large-scale Molecular Orbital Calculation by FMO-MO Method

    INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO, SAKURAI TETSUYA, NAGASHIMA UMPEI

    情報処理学会論文誌   46 ( SIG7(ACS10) )   1-8   2005.5

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  • Large-scale Molecular Orbital Calculation by FMO-MO Method(Numerical Simulation)

    INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO, SAKURAI TETSUYA, NAGASHIMA UMPEI

    46 ( 7 )   1 - 8   2005.5

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    Language:Japanese   Publisher:Information Processing Society of Japan (IPSJ)  

    We describe brief explanation of molecular orbitals based on fragment molecular orbital method (FMO-MO), and demonstrate its efficiency showing the result of the example FMO-MO calculation for a protain. Using FMO-MO method, molecular orbital calculations for molecules containing over 1,000 atoms can be achieved in a short time because large-scale iterative procedure for entire molecule is not required in FMO-MO calculation. FMO-MO calculation for Lysozyme molecule has been finished in almost 4.5 hours using large-scale PC cluster. The generalized eigenvalue problem is 34% of total wall clo...

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  • A Master-worker Type Parallel Method for Large-scale Eigenvalue Problems(Numerical Computation)

    SAKURAI TETSUYA, TADANO HIROTO, HAYAKAWA KENTARO, SATO MITSUHISA, TAKAHASHI DAISUKE, NAGASHIMA UMPEI, INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO

    46 ( 7 )   44 - 51   2005.5

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    Language:Japanese   Publisher:Information Processing Society of Japan (IPSJ)  

    In this paper we present a parallel method for finding several eigenvalues and eigenvectors of large-scale eigenvalue problems. In this method, a small matrix pencil that has only the desired eigenvalues is derived by solving large sparse linear equations constructed from matrices of the eigenvalue problem. Since these equations can be solved independently, we solve them on remote hosts in parallel. This approach is suitable for master-worker programming models. We have implemented and tested the proposed method in a grid environment using OmniRPC.

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  • A Master-worker Type Parallel Method for Large-scale Eigenvalue Problems

    SAKURAI TETSUYA, TADANO HIROTO, HAYAKAWA KENTARO, SATO MITSUHISA, TAKAHASHI DAISUKE, NAGASHIMA UMPEI, INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO

    情報処理学会論文誌   46 ( SIG7(ACS10) )   44-51   2005.5

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  • Ab initio molecular orbital calculation of biomolecule

    Watanabe, T.

    AIST Today (International Edition)   ( 15 )   21 - 21   2005

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  • Calculation of systematic set of bond dissociation enthalpies of polyhalogenated benzenes Reviewed

    T Watanabe, ZY Wang, O Takahashi, K Morihashi, O Kikuchi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   682 ( 1-3 )   63 - 72   2004.8

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    DOI: 10.1016/j.theochem.2004.05.024

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  • Prediction of gas phase thermodynamic function of polychlorinated dibenzo-p-dioxins using DFT Reviewed

    ZY Wang, ZC Zhai, LS Wang, JL Chen, O Kikuchi, T Watanabe

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   672 ( 1-3 )   97 - 104   2004.3

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    DOI: 10.1016/j.theochem.2003.11.030

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  • MC/MO SOC-SCF calculation of parity-violating energy of L-alanine zwitterion in aqueous solution Reviewed

    T Watanabe, K Morihashi, O Takahashi, T Kitayama, T Yagi, O Kikuchi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   671 ( 1-3 )   119 - 123   2004.2

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    DOI: 10.1016/j.theochem.2003.10.060

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  • DNA and estrogen receptor interaction revealed by the fragment molecular orbital method - Implementation of SCF convergence Reviewed

    T Watanabe, Y Inadomi, S Tanaka, U Nagashima'

    NSTI NANOTECH 2004, VOL 1, TECHNICAL PROCEEDINGS   176 - 179   2004

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  • Molecular simulation of DNA microarrays - an application of 2D particle mesh Ewald algorithm Reviewed

    T Watanabe, M Kawata, U Nagashima

    NSTI NANOTECH 2004, VOL 1, TECHNICAL PROCEEDINGS   88 - 90   2004

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  • DFT study of tetrachlorinated dibenzo-p-dioxins Reviewed

    ZY Wang, YC Wu, KK Osamu, TS Watanabe

    ACTA CHIMICA SINICA   61 ( 6 )   840 - 845   2003.6

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  • Parity-violating energy for the chirality-producing step in Strecker synthesis Of L-alanine Reviewed

    T Kitayama, T Watanabe, O Takahashi, K Morihashi, O Kikuchi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   584   89 - 94   2002.4

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    DOI: 10.1016/S0166-1280(02)00023-4

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  • Parity-violating energy of D-glyceraldehyde Reviewed

    O Kikuchi, T Kitayama, T Watanabe, O Takahashi, K Morihashi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   579   147 - 150   2002.3

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    DOI: 10.1016/S0166-1280(01)00725-4

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  • Reaction space map representation of the chlorination/dechlorination reactions of polychlorobenzenes Reviewed

    ZY Wang, T Watanabe, O Takahashi, K Morihashi, O Kikuchi

    JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES   42 ( 2 )   284 - 289   2002.3

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    DOI: 10.1021/ci0103119

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  • Ab initio GB study of the acid-catalyzed cis-trans isomerization of methyl yellow and methyl orange in aqueous solution Reviewed

    M Azuki, K Morihashi, T Watanabe, O Takahashi, O Kikuchi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   542   255 - 262   2001.6

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    DOI: 10.1016/S0166-1280(00)00855-1

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  • A new method of determining the nonempirical potential functions-application to an ionic fragmentation reaction of tert-butyl chloride in aqueous solution Reviewed

    T Watanabe, O Kikuchi

    JOURNAL OF PHYSICAL CHEMISTRY A   104 ( 33 )   7840 - 7846   2000.8

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    DOI: 10.1021/jp9935790

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  • Ab initio GB study of prebiotic synthesis of purine precursors from aqueous hydrogen cyanide: dimerization reaction of HCN in aqueous solution Reviewed

    O Kikuchi, T Watanabe, Y Satoh, Y Inadomi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   507   53 - 62   2000.7

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    DOI: 10.1016/S0166-1280(99)00356-5

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  • AB INITIO GB STUDY OF PREBIOTIC SYNTHESIS OF PURINE PRECURSORS FROM AQUEOUS HYDROGEN CYANIDE: RELATIVE ENERGIES OF HCN POLYMERS IN AQUEOUS SOLUTION

    KIKUCHI Osamu, WATANABE Toshio, ITOGA Kazumi, INADOMI Yuichi

    Viva origino   27 ( 4 )   209 - 218   1999.12

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  • Monte Carlo simulation study on the conformation and interaction of the glycine zwitterion in aqueous solution Reviewed

    T Watanabe, K Hashimoto, H Takase, O Kikuchi

    JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM   397   113 - 119   1997.6

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    DOI: 10.1016/S0166-1280(96)04942-1

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  • Ab initio MO and Monte Carlo simulation study on the conformation of L-alanine zwitterion in aqueous solution Reviewed

    O Kikuchi, T Watanabe, Y Ogawa, H Takase, O Takahashi

    JOURNAL OF PHYSICAL ORGANIC CHEMISTRY   10 ( 3 )   145 - 151   1997.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/(SICI)1099-1395(199703)10:3<145::AID-POC885>3.0.CO;2-B

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  • HPC-AI時代に向けたもっとみんなのスパコンTSUBAME4.0

    遠藤 敏夫, 野村 哲弘, 渡邊 寿雄, 安良岡 由規, 鶴見 慶

    情報処理学会研究報告, 2024-HPC-195   195 ( 8 )   2024.8

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  • Overview of TSUBAME3.0

    Kazuhiro Fujita, Kei Tsurumi, Yoshinori Yasuraoka, Shinobu Nemoto, Yoshiyuki Yanai, Toshio Watanabe, Akihiro Nomura, Shinichi Miura, Akira Nukada, Toshio Endo, Satoshi Matsuoka

    AXIES   TC1-6   2017.12

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  • Projects for Partnership Resource Allocations at TSUBAME2

    Toshio Watanabe, Atsushi Sasaki, Yutaka Matsumoto, Yuki Itakura, Takayuki Aoki

    FA26   2016.12

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  • 高分子反応での高機能触媒開発へ向けた大規模分子軌道計算による予備的研究

    渡邊寿雄, 川内進

    日本コンピュータ化学会年会講演予稿集   2016   75   2016.10

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  • ガウス型基底関数のs型関数による再展開

    渡邊寿雄, 稲富雄一, 稲富雄一, 梅田宏明, 本田宏明, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2015   63‐64   2015.10

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  • ガウス型基底関数のs型関数による再展開についての考察

    渡邊寿雄, 稲富雄一, 稲富雄一, 梅田宏明, 本田宏明, 青柳睦, 長嶋雲兵

    分子科学討論会講演プログラム&amp;要旨(Web)   8th   ROMBUNNO.4P128 (WEB ONLY)   2014

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  • 東京工業大学のHPCIに関する取り組み

    三浦 信一, 渡邊 寿雄, 佐藤 仁, 遠藤 敏夫

    大学ICT推進協議会年次大会論文集   T4G-1   2013.12

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  • 「みんなのスパコン」TSUBAMEにおける産業利用促進の取り組み

    渡邊 寿雄, 佐々木 淳, 松本 豊, 早川 義久, 仲川 愛理, 青木 尊之

    大学ICT推進協議会年次大会論文集   T3G-4   2013.12

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  • 超並列フラグメント分子軌道法プログラムOpenFMOの開発

    稲富雄一, 眞木淳, 本田宏明, 石元孝佳, 梅田宏明, 渡邊寿雄, 池上努, 青柳睦

    分子科学討論会講演プログラム&amp;要旨(Web)   7th   ROMBUNNO.1E01 (WEB ONLY)   2013

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  • スペルミジンによるRNA認識機構の量子化学的解明

    林慶浩, 菅波晃子, 杉山肇, 渡邊寿雄, 川内進, 田村裕

    高分子学会予稿集(CD−ROM)   60 ( 2 Disk1 )   ROMBUNNO.3PB116   2011.9

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  • FMO法におけるフラグメント分割の精度検証

    渡邊寿雄

    日本コンピュータ化学会年会講演予稿集   2010   71   2010.10

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  • ポリアミンによるRNAの構造と機能制御の理論的解明

    林慶浩, 菅波晃子, 杉山肇, 渡邊寿雄, 川内進, 田村裕

    高分子学会予稿集(CD−ROM)   59 ( 2 Disk1 )   ROMBUNNO.1PA079   2010.9

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  • ポリアミンによるRNAの構造と機能制御の理論的解明

    林慶浩, 菅波晃子, 渡邊寿雄, 杉山肇, 川内進, 田村裕

    繊維学会夏季セミナー講演要旨集   41st   107   2010.8

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  • 大規模分子軌道計算のための並列対角化手法

    飯塚直之, 渡邊寿雄, 梅田宏明, 稲富雄一, 多田野寛人, 池上努, 櫻井鉄也, 長嶋雲兵

    日本応用数理学会年会講演予稿集   2009   127-128 - 128   2009.9

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  • グリッド技術を用いた大規模分子シミュレーションプログラムの開発

    長嶋雲兵, 長嶋雲兵, 櫻井鉄也, 櫻井鉄也, 櫻井鉄也, 立川仁典, 立川仁典, 石元孝佳, 石元孝佳, 梅田宏明, 梅田宏明, 八木徹, 八木徹, 渡邊寿雄, 渡邊寿雄

    日本コンピュータ化学会年会講演予稿集   2008   66   2008.9

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  • 多成分分子軌道法の開発と同位体効果の解析

    石元孝佳, 石元孝佳, 立川仁典, 立川仁典, 梅田宏明, 梅田宏明, 渡邊寿雄, 渡邊寿雄, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2008   46   2008.9

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  • フラグメントMO及びFMO‐MO法によるDNAの電子状態計算

    渡邊寿雄, 渡邊寿雄, 稲富雄一, 梅田宏明, 梅田宏明, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2008   52   2008.9

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  • グリッド技術を用いた大規模Fock行列計算プログラムの開発

    梅田宏明, 梅田宏明, 稲富雄一, 渡邊寿雄, 渡邊寿雄, 八木徹, 八木徹, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2008   49   2008.9

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  • フラグメント分子軌道法を用いたHartree‐Fock法の初期値改善

    飯塚直之, 渡邊寿雄, 渡邊寿雄, 梅田宏明, 梅田宏明, 稲富雄一, 長嶋雲兵, 長嶋雲兵, 櫻井鉄也, 櫻井鉄也

    日本応用数理学会年会講演予稿集   2008   375-376   2008.9

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  • Characters of eigenvalue problem to be solved in a large molecular orbital calculation

    INADOMI Yuichi, ISHIMOTO Takayoshi, UMEDA Hiroaki, WATANABE Toshio, TACHIKAWA Masanori, NAGASHIMA Umpei

    計算工学講演会論文集   13 ( 2 )   707 - 708   2008.5

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  • Conformation Analysis of Enkephalin Using Hamiltonian Algorithm : Effect of Mixing Coefficient in HA

    TSUCHIYA Kyouhei, TERAMAE Hiroyuki, WATANABE Toshio, ISHIMOTO Takayoshi, NAGASHIMA Umpei

    Journal of Computer Chemistry, Japan   6 ( 5 )   275 - 282   2007.12

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    Language:Japanese   Publisher:出版者:日本コンピュータ化学会,Society of Computer Chemistry, Japan  

    In order to execute molecular dynamics (MD) simulation for the holding process and native structure of proteins efficiently, Hamiltonian algorithm (HA) was equipped to an MD program: PEACH. The difference between the conventional method and HA is evaluated using Leu-Enkephalin and Met-Enkephalin. HA was efficient for sampling a wide area of geometrical space because many low energy conformations were observed along trajectories of HA.

    DOI: 10.2477/jccj.6.275

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  • 大規模Fock行列生成プログラムの開発

    梅田宏明, 梅田宏明, 稲富雄一, 渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2007   45   2007.10

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  • FMO法による上皮細胞増殖因子受容体(EGFR)の相互作用解析

    渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 田村裕, 稲富雄一, 梅田宏明, 梅田宏明, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2007   43-44   2007.10

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  • MC_MO‐Full‐CI法による水素分子のエネルギー計算

    石元孝佳, 石元孝佳, 立川仁典, 立川仁典, 稲富雄一, 梅田宏明, 梅田宏明, 渡邊寿雄, 渡邊寿雄, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2007   24   2007.10

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  • FMO法による上皮細胞増殖因子受容体(EGFR)の相互作用解析

    渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 田村裕, 稲富雄一, 梅田宏明, 梅田宏明, 長嶋雲兵, 長嶋雲兵

    分子科学討論会講演要旨集(CD−ROM)   1st   3P120   2007.8

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  • 大規模Fock行列計算プログラムの開発

    梅田宏明, 梅田宏明, 稲富雄一, 渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    分子科学討論会講演要旨集(CD−ROM)   1st   4P075   2007.8

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  • 多成分分子軌道法を用いた水素分子に対するエネルギー計算

    石元孝佳, 石元孝佳, 立川仁典, 立川仁典, 稲富雄一, 梅田宏明, 渡邊寿雄, 長嶋雲兵, 梅田宏明, 渡邊寿雄, 長嶋雲兵

    分子科学討論会講演要旨集(CD−ROM)   1st   2P057   2007.8

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  • GAMESSにおけるフォック行列計算ルーチンのグリッド化

    梅田宏明, 梅田宏明, 稲富雄一, 渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    情報処理学会シンポジウム論文集   2007 ( 1 )   76   2007.1

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  • 多成分分子軌道法によるH2分子のエネルギー計算

    石元孝佳, 石元孝佳, 立川仁典, 稲富雄一, 梅田宏明, 梅田宏明, 渡邊寿雄, 渡邊寿雄, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2007   82   2007

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  • グリッド技術を用いた大規模分子軌道計算プログラムの開発

    長嶋 雲兵, 渡辺 寿雄, 稲富 雄一, 石元 孝佳, 梅田 宏明, 櫻井 鉄也

    日本化学会情報化学部会誌   25 ( 2 )   40 - 40   2007

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    Language:Japanese   Publisher:公益社団法人 日本化学会・情報化学部会  

    DOI: 10.11546/cicsj.25.40

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  • Conformation Analysis of Enkephalin Using Hamiltonian Algorithm : Effect of Mixing Coefficient in HA

    土屋 恭平, 寺前 裕之, 渡邊 寿雄, 石元 孝佳, 長嶋 雲兵

    Journal of Computer Chemistry, Japan   6 ( 5 )   275 - 282   2007

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    タンパク質の折れ畳み過程や構造をシミュレーションする手法である分子動力学法をより効率よく行うために生体分子の分子動力学シミュレーションプログラム:PEACH に高次元アルゴリズム(HA:Hamiltonian Algorithm)を組み込み、従来の分子動力学法との差異を比較検討した。Leu-Enkephalin とMet-Enkephalin の二種類のタンパク質を計算対象とした。HA を用いると従来法のエネルギー分布よりも低いエネルギー値を多く取ることが観測され、探索空間が広がっている事が判った。Copyrightは日本コンピュータ化学会。出版社版は学会より入手。

    DOI: 10.2477/jccj.6.275

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  • フラグメントMO法によるEpidermal Growth Factor(EGF)受容体の解析

    渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 田村裕, 稲富雄一, 梅田宏明, 梅田宏明, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2007   80-81   2007

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  • Applicability of FMO method to ab initio MD

    TAMURA KATSUHIRO, TAMURA KATSUHIRO, WATANABE TOSHIO, NAGASHIMA UMPEI, NAGASHIMA UMPEI

    情報化学討論会講演要旨集   29th ( 0 )   107-108 - JP19   2006.11

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    Language:Japanese   Publisher:公益社団法人 日本化学会  

    The fragment molecular orbital (FMO) method is one of the approximated molecular orbital (MO) method developed by Kitaura et al. In the FMO method, a target molecule is divided into small fragments and MO calculations are performed for each fragment and fragment pair to obtain the total energy and one-electron properties of entire molecule. Therefore the FMO method makes it possible to calculate the electronic structure for large molecules such as proteins, enzymes and DNA. In this study, we inspects applicability of FMO method to ab initio Molecular Dynamics (MD) method by verifying the accuracy of Potential Energy Surface(PES) of a catechine molecule between FMO method and conventional method. The accuracy of PES is 1.1kcal/mol within the range of 1eV from the energy minimum. Therefore we think that FMO method is applicable to ab initio MD.

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  • Intramolecular interaction energies during dynamics simulations of oligopeptides by fragment molecular orbital-Hamiltonian algorithm method

    Takayoshi Ishimoto, Hiroyuki Teramae, Yuichi Inadomi, Hiroaki Umeda, Toshio Watanabe, Umpei Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   232   379 - 379   2006.9

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    Language:English   Publishing type:Research paper, summary (international conference)  

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  • FMO-MO 法による大規模分子軌道計算(計算科学の基盤技術とその発展)

    稲富 雄一, 梅田 宏明, 渡邊 寿雄

    数理解析研究所講究録   1505 ( 0 )   134 - 144   2006.7

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    Language:Japanese   Publisher:京都大学  

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  • 高次元アルゴリズムを用いたEnkephalinの構造解析

    土屋恭平, 寺前裕之, 渡邊寿雄, 石元孝佳, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   57   2006

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  • 茶カテキン分子を用いたフラグメント分子軌道法(FMO法)の検証

    田村克浩, 田村克浩, 稲富雄一, 渡邊寿雄, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   77-78   2006

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  • S1d1-7 DNA and Estrogen Receptor Interaction Revealed by the Fragment Molecular Orbital Method(S1-d1: "Structure and Function of Weak Interactions in Protein Molecules",Symposia,Abstract,Meeting Program of EABS & BSJ 2006)

    Watanabe Toshio, Inadomi Yuichi, Fukuzawa Kaori, Tanaka Shigenori, Nakano Tatsuya, Nilsson Lennart, Nagashima Umpei

    Seibutsu Butsuri   46 ( 2 )   S108   2006

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    Language:English   Publisher:The Biophysical Society of Japan General Incorporated Association  

    DOI: 10.2142/biophys.46.S108_1

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  • グリッド技術を用いた並列フォック行列計算プログラムの開発

    梅田宏明, 梅田宏明, 稲富雄一, 稲富雄一, 稲富雄一, 渡邊寿雄, 渡邊寿雄, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   56   2006

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  • 大規模分子に対するFMO‐MOの計算精度

    稲富雄一, 梅田宏明, 渡邊寿雄, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   71   2006

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  • プロトン・デュートロンの基底関数に対する相関効果の影響

    石元孝佳, 石元孝佳, 立川仁典, 稲富雄一, 梅田宏明, 梅田宏明, 渡邊寿雄, 渡邊寿雄, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   69   2006

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  • FMO‐MO法による大規模分子軌道計算:溶媒の影響 その3

    渡邊寿雄, 渡邊寿雄, 稲富雄一, 梅田宏明, 梅田宏明, 石元孝佳, 石元孝佳, 長嶋雲兵, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2006   85-86   2006

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  • 大規模固有値問題のグリッド環境向き並列解法

    桜井鉄也, 小瀧義久, 多田野寛人, 稲富雄一, 梅田宏明, 渡辺寿雄, 長嶋雲兵

    日本機械学会計算力学講演会講演論文集   18th ( 18 )   159-160 - 160   2005.11

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    Language:Japanese   Publisher:The Japan Society of Mechanical Engineers  

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  • 9033 A parallel method for large scale eigenvalue problems in a Grid environment

    Sakurai Tetsuya, Kodaki Yoshihisa, Tadano Hiroto, Inadomi Yuichi, Umeda Hiroaki, Watanabe Toshio, Nagashima Umpei

    The Computational Mechanics Conference   2005 ( 18 )   159 - 160   2005.11

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    Language:Japanese   Publisher:一般社団法人日本機械学会  

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  • Development of a Large Scale Molecular Simulation Program for A Large Scale Molecular Orbital Calculation using Fragment Molecular Orbital Method and Grid Computation Technique

    NAGASHIMA Umpei, INADOMI Yuichi, UMEDA Hiroaki, WATANABE Toshio, ISHIMOTO Takayoshi, SAKURAI Tetsuya, SAKURAI Tetsuya, HIRANO Tsuneo, TOMONARI Mutsumi, TOMONARI Mutsumi

    分子構造総合討論会講演要旨集(CD−ROM)   2005   3D01   2005.9

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  • A Master-worker Type Parallel Method for Large-scale Eigenvalue Problems

    SAKURAI TETSUYA, TADANO HIROTO, HAYAKAWA KENTARO, SATO MITSUHISA, TAKAHASHI DAISUKE, NAGASHIMA UMPEI, INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO

    46 ( 7 )   44 - 51   2005.5

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    Language:Japanese   Publisher:Information Processing Society of Japan (IPSJ)  

    In this paper we present a parallel method for finding several eigenvalues and eigenvectors of large-scale eigenvalue problems. In this method, a small matrix pencil that has only the desired eigenvalues is derived by solving large sparse linear equations constructed from matrices of the eigenvalue problem. Since these equations can be solved independently, we solve them on remote hosts in parallel. This approach is suitable for master-worker programming models. We have implemented and tested the proposed method in a grid environment using OmniRPC.

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    Other Link: http://id.nii.ac.jp/1001/00018410/

  • Large-scale Molecular Orbital Calculation by FMO-MO Method

    INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO, SAKURAI TETSUYA, NAGASHIMA UMPEI

    46 ( 7 )   1 - 8   2005.5

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    We describe brief explanation of molecular orbitals based on fragment molecular orbital method (FMO-MO), and demonstrate its efficiency showing the result of the example FMO-MO calculation for a protain. Using FMO-MO method, molecular orbital calculations for molecules containing over 1,000 atoms can be achieved in a short time because large-scale iterative procedure for entire molecule is not required in FMO-MO calculation. FMO-MO calculation for Lysozyme molecule has been finished in almost 4.5 hours using large-scale PC cluster. The generalized eigenvalue problem is 34% of total wall clock time in our calculation and needs significant computational time for large-scale molecular orbital calculation with FMO-MO.

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    Other Link: http://id.nii.ac.jp/1001/00018405/

  • Development of FMO-MO program on Grid: Project Overview

    UMEDA HIROAKI, INADOMI YUICHI, WATANABE TOSHIO, ISHIMOTO TAKAYOSHI, SAKURAI TETSUYA, NAGASHIMA UMPEI

    日本化学会講演予稿集   85th ( 1 )   794   2005.3

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  • DNA and estrogen receptor interaction revealed by the fragment molecular orbital calculation.

    T Watanabe, Inadomi, V, S Tanaka, K Fukuzawa, T Nakano, L Nilsson, U Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   229   U779 - U779   2005.3

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  • Large-scale molecular orbitals based on fragment molecular orbital method solved by projection method

    Y Inadomi, H Umeda, T Watanabe, T Sakurai, U Nagashima

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   229   U793 - U793   2005.3

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  • Large-scale Molecular Orbital Calculation by FMO-MO Method

    INADOMI YUICHI, INADOMI YUICHI, UMEDA HIROAKI, UMEDA HIROAKI, WATANABE TOSHIO, WATANABE TOSHIO, SAKURAI TETSUYA, SAKURAI TETSUYA, SAKURAI TETSUYA, NAGASHIMA UMPEI, NAGASHIMA UMPEI

    情報処理学会シンポジウム論文集   2005 ( 2 )   1-8   2005.1

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  • A master-worker type parallel method for large-scale eigenvalue problems

    SAKURAI TETSUYA, TADANO HIROTO, HAYAKAWA KENTARO, SATO MITSUHISA, TAKAHASHI DAISUKE, NAGASHIMA UMPEI, INADOMI YUICHI, UMEDA HIROAKI, WATANABE TOSHIO

    情報処理学会シンポジウム論文集   2005 ( 2 )   43-50   2005.1

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  • 高次元アルゴリズムと古典分子動力学法によるアミノ酸多量体の構造解析

    斎藤豊, 土屋恭平, 寺前裕之, 渡辺寿雄, 石元孝佳, 長崎雲兵

    日本コンピュータ化学会年会講演予稿集   2005   60   2005

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  • FMO‐MO法による大規模分子軌道計算:グリッド化に向けて

    梅田宏明, 稲富雄一, 渡辺寿雄, 多田野寛人, 桜井鉄也, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2005   68   2005

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  • FMO‐MO法による大規模分子軌道計算:溶媒の影響

    渡辺寿雄, 稲富雄一, 梅田宏明, 石元孝佳, 長崎雲兵

    日本コンピュータ化学会年会講演予稿集   2005   69   2005

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  • A Large Scale Molecular Orbital Calculation Using Fragment Molecular Orbital Method-Method and Performance Evaluation-

    INADOMI Yuichi, UMEDA Hiroaki, WATANABE Toshio, ISHIMOTO Takayoshi, NAGASHIMA Umpei

    日本コンピュータ化学会年会講演予稿集   2005   50   2005

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  • FMO‐MO法による大規模分子軌道計算:グリッド化に向けて

    梅田宏明, 梅田宏明, 稲富雄一, 稲富雄一, 渡辺寿雄, 渡辺寿雄, 多田野寛人, 桜井鉄也, 桜井鉄也, 長嶋雲兵, 長嶋雲平

    情報処理学会シンポジウム論文集   13   2005

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  • 高次元アルゴリズムにおける時間パラメータの検討

    八幡大輔, 寺前裕之, 渡辺寿雄, 石本孝佳, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2005   59   2005

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  • A Large Scale Molecular Orbital Calculation Using Fragment Molecular Orbital Method

    INADOMI Yuichi, UMEDA Hiroaki, WATANABE Toshio, ISHIMOTO Takayoshi, NAGASHIMA Umpei

    日本コンピュータ化学会年会講演予稿集   2005   75   2005

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  • 2P080 Reaction Mechanism of Nitric Oxide Reductase Cytochrome P450nor from Fusarium oxysporum

    Tsukamoto K, Watanabe T, Nagashima U, Akiyama Y

    Biophysics   44 ( 1 )   S129   2004.11

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    DOI: 10.2142/biophys.44.S129_4

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  • フラグメントMO法によるDNAとエストロゲン受容体の相互作用解析

    渡辺寿雄, 稲富雄一, 福沢薫, 田中成典, 中野達也, Nilsson L, 長嶋雲兵

    日本コンピュータ化学会年会講演予稿集   2004   86   2004.5

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  • DNA and estrogen receptor interaction revealed by the fragment molecular orbital method - Implementation of SCF convergence

    T Watanabe, Y Inadomi, S Tanaka, U Nagashima'

    NSTI NANOTECH 2004, VOL 1, TECHNICAL PROCEEDINGS   46 ( Supplement 2 )   176 - 179   2004

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  • Molecular Dynamics Simulation for Interface Structure of Microdroplet.

    WATANABE TOSHIO, SHIMADA SACHIKO, NAKATANI SEIJI, KIKUCHI OSAMU

    日本化学会講演予稿集   81st ( 1 )   415   2002.3

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  • Stability of liquid droplets. Molecular dynamical analysis.

    WATANABE TOSHIO, SHIMADA SACHIKO, NAKAYA SEIJI, KIKUCHI OSAMU

    液液界面ナノ領域の化学 第2回公開シンポジウム要旨集 平成14年   30   2002

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  • グリシンの水溶液中における分子内水素移動反応

    渡辺寿雄, 浦栃裕, 菊池修

    溶液化学シンポジウム講演要旨集   24th   232-233   2001.9

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  • The intramolecular proton transfer reaction of glycine in aqueous solution.

    WATANABE TOSHIO, KIKUCHI OSAMU

    日本化学会講演予稿集   79th ( 1 )   135   2001.3

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  • 分子動力学法による微小液滴の界面構造の解析 (文部科学省S)

    渡辺寿雄, 島田幸子, 中谷清治, 菊池修

    液液界面ナノ領域の化学 平成13年度 第1回公開シンポジウム要旨集   18   2001

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  • Ab initio and DFT Calculations of Tetrachlorodibenzo-p-dioxins

    Wang Zun Yao, Watanabe Toshio, Kikuchi Osamu

    Journal of Chemical Software   13 ( 4 )   251 - 254   2001

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    HF/6-311G&lt;SUP&gt;**&lt;/SUP&gt; and B3LYP/6-311G&lt;SUP&gt;**&lt;/SUP&gt; calculations of tetrachlorodibenzo-&lt;I&gt;p&lt;/I&gt;-dioxins (TCDDs) predicted that the lowest-energy isomer is not the most toxic 2, 3, 7, 8-TCDD isomer but l, 3, 6, 8-TCDD. This is contrary to the AM1 and PM3 predictions which are used for the elucidation of the isomer distribution of the TCDD homologue in combustion-derived samples.

    DOI: 10.14827/jccj1999.13.251

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  • A new method of determining the non-empirical potential functions-Application to the intramolecular proton transfer reaction of glycine in aqueous solution.

    WATANABE TOSHIO, KIKUCHI OSAMU

    日本化学会講演予稿集   78th ( 1 )   455   2000.3

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  • Quantum Chemical Study of Polymerization of HCN in Aqueous Solution

    KIKCUHI Osamu, ITOGA Kazumi, WATANABE Toshio, SATOH Yusuke

    Viva origino   27 ( 1 )   6 - 6   1999.3

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  • Ab initio Determination of a New Effective Pair Potential Function.

    WATANABE TOSHIO, KIKUCHI OSAMU

    日本化学会講演予稿集   74th ( 1 )   93   1998.3

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  • MC simulation with GBF potential functions-An application to the SN1 type fragmentation reaction of tert-butyl chloride.

    WATANABE TOSHIO, KIKUCHI OSAMU

    日本化学会講演予稿集   72nd ( 1 )   179   1997.3

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  • MC simulation with GBF potential function-Aprication for Sn1 type fragmentation reaction of tert-butylchloride.

    WATANABE TOSHIO, KIKUCHI OSAMU

    分子構造総合討論会講演要旨集   1996   128   1996.10

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  • Conformation and solvated structure of glycine zwitterion in aqueous solution.

    WATANABE TOSHIO, HASHIMOTO KAZUHIKO, TAKASE HIDETO, KIKUCHI OSAMU

    分子構造総合討論会講演要旨集   1995   237   1995.9

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Research Projects

  • High Performance Computational (HPC) Studies on Beyond the Standard Model of Particle Physics using Atoms and Molecules

    2018.4 - 2019.3

    DAS BHANU PRATAP

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    Grant type:Competitive

    The beyond the Standard Model (BSM) physics that we shall be exploring in this research are the electric dipole moment (EDM) of the electron and nuclear which can arise due to the violations of symmetries of space and time due to exotic forces between subatomic particles. The high performance computations of the electron and nuclear EDMs to test BSM physics will be carried out in the framework of relativistic quantum mechanics such as the Dirac-Hartree-Fock (DHF) equation and the relativistic coupled cluster (RCC) amplitude equations.

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  • Development of Massively Parallel Program, OpenFMO, for Fragment Molecular Orbital method on Multi-platform

    2014.4 - 2015.3

    JHPCN (Joint Usage/Research Center for Interdisciplinary Large-scale Information Infrastructures)  2014 Joint Research Projects 

    Toshio Watanabe

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  • 溶液内化学反応解析の為の新たな計算化学的手法の開発及び応用

    Grant number:14740321  2002 - 2003

    文部科学省  科学研究費補助金(若手研究(B))  若手研究(B)

    渡邊寿雄

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\1700000 ( Direct Cost: \1700000 )

    溶液内での化学反応を解析するために必要な大規模な系の分子軌道計算が可能な方法であるフラグメント分子軌道法(FMO法)について研究を行った。プログラムパッケージとしては、国立医薬品食品衛生研究所の中野らによって開発され、産業技術総合研究所の稲富らによって改良されたABINIT-MPを用いた。また分子動力学法(MD法)のプログラムは産業技術総合研究所の池上によって開発されたMDプログラムを用いた。これらのプログラムを用いてFMO法のMD計算における特性を調べるため、6残基のポリペプチド(ポリグリシン・ポリアラニン)を用いて、PM3、HF/STO-3G、HF/6-31G、FMO/STO-3G、FMO/6-31Gを用いた計算を行い、比較・検討をした。その結果、FMO法で得られたエネルギー及びエネルギー勾配は、従来のHF法を精度良く再現し、FMO-MD計算が実用的であることがわかり、その有用性を示した。また、FMO法を適用するための準備段階として、数十ナノメートルの水溶液中のヘキサン、及びペンタデカンの微小液滴の振舞を、力場関数に分子力学法(MM法)を用いた古典MD計算によって調べた。得られた結果より、液滴のサイズ依存性、単位セルのサイズ依存性などを調べ、液滴の特性を調べるために十分な系のサイズや条件を調べた。また、平らな界面との比較を行って液滴界面の特徴を調べた。それにより液滴におい...

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  • レーザー捕捉-分光-電気化学法による微小油滴/水界面物質移動過程の解析と制御

    Grant number:13129202  2001 - 2003

    文部科学省  科学研究費補助金(特定領域研究(B), 特定領域研究)  特定領域研究(B), 特定領域研究

    中谷清治, 渡辺寿雄, 大堺利行

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    Grant type:Competitive

    Grant amount:\30500000 ( Direct Cost: \30500000 )

    レーザー捕捉-分光-電気化学装置を用いて,イオン対抽出過程のメカニズムを単一微小油滴/水系で直接測定から明らかにした。(フェロセニルメチル)トリメチルアンモニウムイオン(FcN^+)とアルキル硫酸イオン(AS^-)のイオン対抽出速度測定から,アルキル鎖長(n=11,12,13)で特徴的な挙動が観測された。n=11では抽出過程は両相で電気的中性を満たすようにFcN^+とAS^-の個々のイオン移動が進み,その律速段階偉AS^-の移動であることがわかった。n=12,13では界面に吸着したAS^-とFcN^+が電気的に中性となり,油滴中に抽出されることがわかった。また,メロシアニン540(MC^-)と有機スズ化合物(OTC^+,トリブチルスズなど)のイオン対抽出過程をNaCl存在下で検討したところ,MC^-はCl^-よりも疎水的であるが油/水界面に吸着するため,OTC^+はCl^-と抽出された後、油滴中のCl^-と界面吸着したMC^-がゆっくりと交換されることが明らかとなった。本手法を用いて種々のイオン対抽出過程の速度論的議論が可能となった。油/水界面電子移動過程のガルバニ電位差・自由エネルギー変化(ΔG)依存性を単一微小水滴/油系で行った。電位差決定イオンとして,テトラアルキルアンモニウムイオンを用いることで赤血塩とデカメチルフェロセン,ジメチルフェロセンの組合せでΔGを0〜-40...

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