Katate Masatsuka (方手雅塚)

Katate Masatsuka speaks.

First impressions are lasting

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Just remembered the advice I get from one of my mentors when I was a student: First impressions are lasting, and whether it is good or bad, it will take a long time to change it.

Written by Katate Masatsuka

January 2, 2020 at 9:04 am

Posted in General, In English

Keep trying and keep moving forward

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I turned 48 today and still feel young. Just can’t feel old until the idea I pursue has proven successful in real-world applications. I keep trying and keep moving forward.

 

Written by Katate Masatsuka

September 10, 2019 at 10:52 am

Posted in About Author, General

Publication List (updated on 01/21/2020)

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——————————————————————————————————
– Journal papers
——————————————————————————————————

  1. H. Nishikawa, “Robust numerical fluxes for unrealizable states”, Journal of Computational Physics, Volume 408, 1 May 2020, 109244, doi:10.1016/j.jcp.2020.109244. [ preprint | journal ] Free download link (until 03/11/20)

  2. H. Nishikawa, “A Face-Area-Weighted ‘Centroid’ Formula for Finite-Volume Method That Improves Skewness and Convergence on Triangular Grids”, Journal of Computational Physics, Volume 401, 15 January 2020, 109001, doi:10.1016/j.jcp.2019.10900. [ preprint | journal ]

  3. A. S. Chamarthi and H. Nishikawa and K. Komurasaki, First Order Hyperbolic Approach for Anisotropic Diffusion Equation, Journal of Computational Physics, Volume 396, pp. 243-263, 2019, doi:10.1016/j.jcp.2019.06.064. [ preprint | journal ]

  4. H. Nishikawa, On Large Start-Up Error of BDF2, Journal of Computational Physics, Volume 392, pp. 456-461, 2019, doi:10.1016/j.jcp.2019.04.070. [ preprint | journal ]

  5. H. Nishikawa, Efficient gradient stencils for robust implicit finite-volume solver convergence on distorted grids, Journal of Computational Physics, Volume 386, pp. 486-501, 2019, doi: 10.1016/j.jcp.2019.02.026. [ preprint | journal ]

  6. J. Lou, X. Liu, H. Luo, and H. Nishikawa, Reconstructed Discontinuous Galerkin Methods for Hyperbolic Diffusion Equations on Unstructured Grids, Commun. Comput. Phys., 25, pp. 1302-1327, 2019 [ journal ]

  7. H. Nishikawa, From Hyperbolic Diffusion Scheme to Gradient Method: Implicit Green-Gauss Gradients for Unstructured Grids, Journal of Computational Physics, Volume 372, pp. 126-160, 2018. [ preprint | journal ]

  8. J. Lou, L. Li, H. Luo, and H. Nishikawa, “Reconstructed discontinuous Galerkin methods for linear advection-diffusion equations based on first-order hyperbolic system”, Journal of Computational Physics, Volume 369, pp. 103-124, 2018. [ journal ]

  9. H. Nishikawa, On Hyperbolic Method for Diffusion with Discontinuous Coefficients, Journal of Computational Physics, Volume 367, pp. 102-108, 2018. [ preprint | journal ]

  10. H. Nishikawa and Y. Nakashima, Dimensional Scaling and Numerical Similarity in Hyperbolic Method for Diffusion, Journal of Computational Physics, Volume 355, pp. 121-143, 2018. [ preprint | journal ]

  11. H. Nishikawa and Y. Liu, Hyperbolic Advection-Diffusion Schemes for High-Reynolds-Number Boundary-Layer Problems, Journal of Computational Physics, Volume 352, pp. 23-51, 2018. [ preprint | journal ]

  12. H. Nishikawa and Y. Nakashima and N. Watanabe, Effects of High-Frequency Damping on Iterative Convergence of Implicit Viscous Solver, Journal of Computational Physics, Volume 348, pp. 66-81, 2018 [ preprint | journal ]

  13. H. Nishikawa and Y. Liu, Accuracy-Preserving Source Term Quadrature for Third-Order Edge-Based Discretization, Journal of Computational Physics, Volume 344, pp. 595-622, 2017. [ preprint | journal ]

  14. H. Baty and H. Nishikawa, Hyperbolic Method for Magnetic Reconnection Process in Steady State Magnetohydrodynamics, Monthly Notices of the Royal Astronomical Society, 459, pp.624-637, 2016. [ journal ]

  15. H. Nishikawa and P. L. Roe, Third-order active-flux scheme for advection diffusion: Hyperbolic diffusion, boundary condition, and Newton solver, Computers and Fluids, 125, pp.71-81, 2016. [ preprint | journal ]

  16. Efficient High-Order Discontinuous Galerkin Schemes with First-Order Hyperbolic Advection-Diffusion System Approach, Journal of Computational Physics, Volume 321, pp. 729-754, 2016.
  17.     M. Ricchiuto, H. Nishikawa, A First-Order Hyperbolic System Approach for Dispersion, Journal of Computational Physics, Volume 321, pp. 593-605, 2016.
  18. High-order shock-capturing hyperbolic residual-distribution schemes on irregular triangular grids, Computers and Fluids, Volume 131, pp. 29-44, 2016.
  19. Improved second-order hyperbolic residual-distribution scheme and its extension to third-order on arbitrary triangular grids, Journal of Computational Physics, 300, pp.455-491, 2015.
  20. Very efficient high-order hyperbolic schemes for time-dependent advection-diffusion problems: Third-, fourth-, and sixth-order, Computers and Fluids, 102, pp.131-147 2014.

  21. H. Nishikawa, Accuracy-preserving boundary flux quadrature for finite-volume discretization on unstructured grids, Journal of Computational Physics, Volume 281, pp. 518-555, 2015. [ preprint(pdf) | journal | slides | seminar video ]

  22. First, Second, and Third Order Finite-Volume Schemes for Advection Diffusion, Journal of Computational Physics, Volume 273, Issue 15, pp. 287-309, 2014. [ preprint | journal ]

  23. H. Nishikawa, First, Second, and Third Order Finite-Volume Schemes for Diffusion, Journal of Computational Physics, Volume 256, Issue 1, pp. 791-805, 2014. [ preprint | journal ]

  24. H. Nishikawa, Divergence Formulation of Source Term, Journal of Computational Physics, Volume 231, Issue 19,, pp. 6393-6400, 2012. [ preprint | journal ]

  25. H. Nishikawa, Robust and Accurate Viscous Discretization via Upwind Scheme – I: Basic Principle, Computers and Fluids, Volume 49, Issue 1, pp. 62-86, 2011. [ preprint | journal ]

  26. J. L. Thomas, B. Diskin, and H. Nishikawa, Critical Study of Agglomerated Multigrid Methods for Diffusion on Highly-Stretched Grids, Computers and Fluids, Volume 41, Issue 1, pp. 82-93, 2011. [ journal ]

  27. H. Nishikawa, A First-Order System Approach for Diffusion Equation. II: Unification of Advection and Diffusion, Journal of Computational Physics, 229, pp. 3989-4016, 2010. [ preprint | journal ]

  28. H. Nishikawa, B. Diskin, and J. L. Thomas, Critical Study of Agglomerated Multigrid Methods for Diffusion, AIAA Journal, Vol. 48, No. 4, pp. 839-847, 2010. [ journal ]

  29. B. Diskin, J. L. Thomas, E, J. Nielsen, H. Nishikawa and J. A. White, Comparison of Node-Centered and Cell-Centered Unstructured Finite-Volume Discretizations: Viscous Fluxes, AIAA Journal, Vol. 48, No. 7, pp. 1326-1338, 2010. [ journal ]

  30. H. Nishikawa, Adaptive-Quadrature Fluctuation-Splitting Schemes for the Euler Equations, International Journal for Numerical Methods in Fluids, 57, pp. 1-12, 2008.  [ journal ]

  31. H. Nishikawa and K. Kitamura, Very Simple, Carbuncle-Free, Boundary-Layer-Resolving, Rotated-Hybrid Riemann Solvers, Journal of Computational Physics, 227, pp. 2560-2581, 2008.  [ preprint | journal ]

  32. H. Nishikawa, A First-Order System Approach for Diffusion Equation. I: Second-Order Residual Distribution Schemes, Journal of Computational Physics, 227, pp. 315-352, 2007  [ preprint | journal ]

  33. H. Nishikawa, Multigrid Third-Order Least-Squares Solution of Cauchy-Riemann Equations on Unstructured Triangular Grids, International Journal for Numerical Methods in Fluids, 53: 443-454, 2007.  [ journal ]

  34. H. Nishikawa and B. van Leer, Optimal Multigrid Convergence by Elliptic/Hyperbolic Splitting, Journal of Computational Physics, 190, pp. 52-63, 2003.  [ journal ]

  35. P. L. Roe and H. Nishikawa, Adaptive Grid Generation by Minimising Residuals, International Journal for Numerical Methods in Fluids, 40: 121-136, 2002.  [ journal ]

——————————————————————————————————
– Lectures
——————————————————————————————————

  1. H. Nishikawa, “Making Your Own Mesh”, JOINT NATIONAL INSTITUTE OF AEROSPACE (NIA) & SU2 FOUNDATION USER WORKSHOP, August 9, 2019 [ pdf | video ]

  2. H. Nishikawa, “CFD II: Unstructured grids and algorithms”, Old Dominion University, Fall 2018.
  3. H. Nishikawa, Higher-Order Discretizatoin of Diffusion Terms in Residual Distribution Methods, in 34th VKI CFD Lecture Series, Very High Order Discretization Methods, VKI Lecture Series, 2005. [ pdf ]

——————————————————————————————————
– Technical Notes
——————————————————————————————————

  1. First-Order Hyperbolic System Method for Time-Dependent Advection-Diffusion Problems, NASA-TM-2014-218175, March 2014.

——————————————————————————————————
– Conference papers  (excluding those later published in a journal)
——————————————————————————————————

  1. Hiroaki Nishikawa, A Face-Area-Weighted Centroid Formula for Reducing Grid Skewness and Improving Convergence of Edge-Based Solver on Highly-Skewed Simplex Grids, AIAA Paper 2020-1786, AIAA SciTech 2020 Forum, 6-10 January 2020, Orlando, Florida.  [ pdf | presentation ]

  2. Hiroaki Nishikawa and  Jeffery A White, Face-and Cell-Averaged Nodal-Gradient Approach to Cell-Centered Finite-Volume Method on Mixed Grids, AIAA Paper 2020-1787, AIAA SciTech 2020 Forum, 6-10 January 2020, Orlando, Florida.  [ pdf ]

  3. Jeffery A White, Hiroaki Nishikawa, Robert Baurle, A 3-D Nodal-Averaged Gradient Approach For Unstructured-Grid Cell-Centered Finite-Volume Methods For Application to Turbulent Hypersonic Flow, AIAA Paper 2020-0652, AIAA SciTech 2020 Forum, 6-10 January 2020, Orlando, Florida.  [ pdf ]

  4. Jeffery A White, Robert Baurle, Hiroaki Nishikawa, Efficient and Robust Weighted Least-Squares Cell-Average Gradient Construction Methods For the Simulation of Scramjet Flows, Joint Army-Navy-NASA-Air Force (JANNAF) 66th JPM / PIB / 49th CS / 37th APS / 37th EPSS / 31st PSHS Joint Subcommittee Meeting at Dayton, Ohio, June 2019 [ pdf ]

  5. Lingquan Li, Jialin Lou, Hong Luo, and Hiroaki Nishikawa, High-Order Hyperbolic Navier-Stokes Reconstructed Discontinuous Galerkin Method for Unsteady Flows, AIAA 2019-3060, AIAA Aviation 2019 Forum, 17-21 June 2019, Dallas, Texas, 2019 [ pdf ]
  6. Jeffery A. White, Hiroaki Nishikawa, and Robert A. Baurle, “Weighted Least-squares Cell-Average Gradient Construction Methods for the VULCAN-CFD Second-Order Accurate Unstructured-Grid Cell-Centered Finite-Volume Solver”, AIAA2019-0127, AIAA Scitech 2019 Forum, 7-11 January 2019, San Diego, California. [ pdf ]
  7. Hiroaki Nishikawa, “An Implicit Gradient Method for Cell-Centered Finite-Volume Solver on Unstructured Grids”, AIAA2019-1155, AIAA SciTech 2019 Forum, 7-11 January 2019, San Diego, California. [ pdf ]
  8. Lingquan Li, Jialin Lou, Hong Luo, and Hiroaki Nishikawa, “High-Order Hyperbolic Navier-Stokes Reconstructed Discontinuous Galerkin Method”, AIAA Paper 2019-1150, AIAA Scitech 2019 Forum, 7-11 January 2019, San Diego, California. [ pdf ]
  9. Hiroaki Nishikawa and Yi Liu}, “Third-Order Edge-Based Scheme for Unsteady Problems”, AIAA Paper 2018-4166, AIAA 2018 Fluid Dynamics Conference, 25 – 29 June 2018, Atlanta, Georgia. [ pdf ]
  10. Jialin Lou and Lingquan Li and Hong Luo and Hiroaki Nishikawa}, “Explicit Hyperbolic Reconstructed Discontinuous Galerkin Methods for Time-Dependent Problems”, AIAA Paper 2018-4270, AIAA 2018 Fluid Dynamics Conference, 25 – 29 June 2018, Atlanta, Georgia. [ pdf ]
  11. Lingquan Li and Jialin Lou and Hong Luo and Hiroaki Nishikawa, “A New Formulation of Hyperbolic Navier-Stokes Solver based on Finite Volume Method on Arbitrary Grids”, AIAA Paper 2018-4160, AIAA 2018 Fluid Dynamics Conference, 25 – 29 June 2018, Atlanta, Georgia. [ pdf ]
  12. Boris Diskin and Hiroaki Nishikawa, “Customized Grid Generation Codes for Benchmark Three-Dimensional Flows”, AIAA Paper 2018-1101, 56th AIAA Aerospace Sciences Meeting, 8 – 12 January 2018, Kissimmee, Florida. [ pdf ]
  13. Boris Diskin, William K. Anderson, Mohagna J. Pandya, Christopher L. Rumsey, James L. Thomas, Yi Liu, Hiroaki Nishikawa, “Grid Convergence for Three Dimensional Benchmark Turbulent Flows”, AIAA Paper 2018-1102, 56th AIAA Aerospace Sciences Meeting, 8 – 12 January 2018, Kissimmee, Florida. [ pdf ]
  14. Jialin Lou, Lingquan Li, Hong Luo, Hiroaki Nishikawa, “First-Order Hyperbolic System Based Reconstructed Discontinuous Galerkin Methods for Nonlinear Diffusion Equations on Unstructured Grids”, AIAA Paper 2018-2094, 56th AIAA Aerospace Sciences Meeting, 8 – 12 January 2018, Kissimmee, Florida. [ pdf ]
  15. Lingquan Li, Xiaodong Liu, Jialin Lou, Hong Luo, Hiroaki Nishikawa, Yuxin Ren, “A Discontinuous Galerkin Method Based on Variational Reconstruction for Compressible Flows on Arbitrary Grids”, AIAA Paper 2018-0831, 56th AIAA Aerospace Sciences Meeting, 8 – 12 January 2018, Kissimmee, Florida. [ pdf ]
  16. Jeffery A. White, Robert Baurle, Bradley J. Passe, Seth C. Spiegel, and Hiroaki Nishikawa, Geometrically Flexible and Efficient Flow Analysis of High Speed Vehicles Via Domain Decomposition, Part 1, Unstructured-grid Solver for High Speed Flows}, JANNAF 48th Combustion 36th Airbreathing Propulsion 36th Exhaust Plume and Signatures 30th Propulsion Systems Hazards Joint Subcommittee Meeting Programmatic and Industrial Base Meeting, Newport News, VA, 2017.  [ pdf ]
  17. Hiroaki Nishikawa, “Uses of Zero and Negative Volume Elements for Node-Centered Edge-Based Discretization”, AIAA Paper 2017-4295, 23rd AIAA Computational Fluid Dynamics Conference, 5 – 9 June 2017, Denver, Colorado. [ pdf | seminar video ]
  18. Y. Liu and H. Nishikawa “Third-Order Edge-Based Hyperbolic Navier-Stokes Scheme for Three-Dimensional Viscous Flows”, AIAA Paper 2017-3443, 23rd AIAA Computational Fluid Dynamics Conference, 5 – 9 June 2017, Denver, Colorado. [ pdf ]
  19. Jialin Lou, Lingquan Li, Xiaodong Liu, Hong Luo, Hiroaki Nishikawa, “Reconstructed Discontinuous Galerkin Methods Based on First-Order Hyperbolic System for Advection-Diffusion Equations”, AIAA Paper 2017-3445, 23rd AIAA Computational Fluid Dynamics Conference, 5 – 9 June 2017, Denver, Colorado.[ pdf ]
  20. Lingquan Li, Xiaodong Liu, Jialin Lou, Hong Luo, Hiroaki Nishikawa, Yuxin Ren, “A Finite Volume Method Based on Variational Reconstruction for Compressible Flows on Arbitrary Grids”, AIAA Paper 2017-3097, 23rd AIAA Computational Fluid Dynamics Conference, 5 – 9 June 2017, Denver, Colorado. [ pdf ]
  21. Jialin Lou and Xiaodong Liu and Hong Luo and Hiroaki Nishikawa, Reconstructed Discontinuous Galerkin Methods for Hyperbolic Diffusion Equations on Unstructured Grids, AIAA Paper 2017-0310, 55th AIAA Aerospace Sciences Meeting, 9 – 13 January 2017, Grapevine, Texas. [ pdf ]
  22. H. Nishikawa and Y. Liu, Hyperbolic Navier-Stokes Method for High-Reynolds-Number Boundary Layer Flows, AIAA Paper 2017-0081, 55th AIAA Aerospace Sciences Meeting, 9 – 13 January 2017, Grapevine, Texas. [ pdf ]
  23. Y. Liu and H. Nishikawa, Third-Order Inviscid and Second-Order Hyperbolic Navier-Stokes Solvers for Three-Dimensional Unsteady Inviscid and Viscous Flows, AIAA Paper 2017-0738, 55th AIAA Aerospace Sciences Meeting, 9 – 13 January 2017, Grapevine, Texas. [ pdf ]
  24. Y. Liu and H. Nishikawa, “Third-Order Inviscid and Second-Order Hyperbolic Navier-Stokes Solvers for Three-Dimensional Inviscid and Viscous Flows”, AIAA Paper 2016-3969, 46th AIAA Fluid Dynamics Conference, 13-17 June 2016, Washington, D.C. [ pdf ]
  25. Jialin Lou, Hong Luo, and Hiroaki Nishikawa, Discontinuous Galerkin Methods for Hyperbolic Advection-Diffusion Equation on Unstructured Grids, The 9th International Conference on Computational Fluid Dynamics (ICCFD), July 11-15, Istanbul, Turkey, 2016. [ pdf ]
  26. Y. Nakashima, N. Watanabe, and H. Nishikawa, Hyperbolic Navier-Stokes Solver for Three-Dimensional Flows, AIAA Paper 2016-1101, 54th AIAA Aerospace Sciences Meeting, 4-8 January, San Diego, California, 2016. [ pdf ]
  27. H. Nishikawa, Alternative Formulations for First-, Second-, and Third-Order Hyperbolic Navier-Stokes Schemes, AIAA Paper 2015-2451, 22nd AIAA Computational Fluid Dynamics Conference, June 2015.  [ pdf ]
  28. H. Nishikawa, Active Flux for Advection Diffusion, AIAA Paper 2015-2450, 22nd AIAA Computational Fluid Dynamics Conference, June 2015. [ pdf ]
  29. Y. Nakashima, N. Watanabe, and H. Nishikawa, Development of an Effective Implicit Solver for General-Purpose Unstructured CFD Software, C08-1, The 28th Computational Fluid Dynamics Symposium, December 2014. [ pdf ]
  30. H. Nishikawa, First, Second, and Third Order Finite-Volume Schemes for Navier-Stokes Equations, AIAA Paper 2014-2091, 7th AIAA Theoretical Fluid Mechanics Conference, June 2014. [ pdf ]
  31. H. Nishikawa, P. L. Roe, and T. A. Eymann, Active Flux for Diffusion, AIAA Paper 2014-2092, 7th AIAA Theoretical Fluid Mechanics Conference, June 2014. [ pdf ]
  32. H. Nishikawa and B. Diskin, Evaluation of Multigrid Solutions for Turbulent Flows, AIAA Paper 2014-0082, AIAA SciTech, June 2014.  [ pdf ]
  33. H. Nishikawa, B. Diskin, J. L. Thomas, and D. H. Hammond, Recent Advances in Agglomerated Multigrid, AIAA Paper 2013-863, 51st AIAA Aerospace Sciences Meeting, 7 – 10 January, Grapevine, Texas, 2013. [ pdf ]
  34. H. Nishikawa, New-Generation Hyperbolic Navier-Stokes Schemes: (1/h) Speed-Up and Accurate Viscous/Heat Fluxes, AIAA Paper 2011-3043, 20th Computational Fluid Dynamics Conference, June 2011. [ pdf ]
  35. H. Nishikawa, Two Ways to Extend Diffusion Schemes to Navier-Stokes Schemes: Gradient Formula or Upwind Flux, AIAA Paper 2011-3044, 20th Computational Fluid Dynamics Conference, June 2011. [ pdf ]
  36. H. Nishikawa and B. Diskin, Development and Application of Parallel Agglomerated Multigrid Methods for Complex Geometries , AIAA Paper 2011-3232, 20th Computational Fluid Dynamics Conference, June 2011. [ pdf ]
  37. H. Nishikawa, Beyond Interface Gradient: A General Principle for Constructing Diffusion Schemes, AIAA Paper 2010-5093, 40th Fluid Dynamics Conference and Exhibit, June 2010. [ pdf ]
  38. H. Nishikawa, B. Diskin, and J. L. Thomas, Development and Application of Agglomerated Multigrid Methods for Complex Geometries, AIAA Paper 2010-4731, 40th Fluid Dynamics Conference and Exhibit, June 2010. [ pdf ]
  39. H. Nishikawa, Towards Future Navier-Stokes Schemes: Uniform Accuracy, O(h) Time step, and Accurate Viscous/Heat Fluxes, AIAA Paper 2009-3648, 19th AIAA Computational Fluid Dynamics Conference, June 2009. [ pdf ]
  40. H. Nishikawa and P. L. Roe, High-Order Fluctuation-Splitting Schemes for Advection-Diffusion Equation, Computational Fluid Dynamics 2006: Proceedings of the Fourth International Conference on Computational Fluid Dynamics, ICCFD, Ghent, Belgium, 10-14 July 2006, Springer 2009. [ pdf ]
  41. F. Ismail, P. L. Roe, and H. Nishikawa, A Proposed Cure to the Carbuncle Phenomenon, Computational Fluid Dynamics 2006: Proceedings of the Fourth International Conference on Computational Fluid Dynamics, ICCFD, Ghent, Belgium, 10-14 July 2006, Springer 2009. [ pdf ]
  42. H. Nishikawa and P. L. Roe, Towards High-Order Fluctuation-Splitting Schemes for Navier-Stokes Equations , AIAA Paper 2005-5244, 17th AIAA Computational Fluid Dynamics Conference, Toronto, June 2005. [ pdf ]
  43. P. L. Roe, H. Nishikawa, F. Ismail and L. Scalabrin, On Carbuncles and Other Excrescences , AIAA Paper 2005-4872, 17th AIAA Computational Fluid Dynamics Conference, Toronto, June 2005. [ pdf ]
  44. H. Nishikawa and P. L. Roe, On High-Order Fluctuation-Splitting Schemes for Navier-Stokes Equations, Computational Fluid Dynamics 2004: Proceedings of the Third International Conference on Computational Fluid Dynamics, ICCFD, Toronto, 12-16 July 2004, Springer, 2006. [ pdf ]
  45. H. Nishikawa, P. L. Roe, Y. Suzuki, and B. van Leer, A General Theory of Local Preconditioning and Its Application to the 2D Ideal MHD Equations, AIAA Paper 2003-3704, 16th AIAA Computational Fluid Dynamics Conference, Orlando, June 2003. [ pdf ]
  46. P. L. Roe, K. Kabin and H.Nishikawa, Toward A General Theory of Local Preconditioning, AIAA Paper 2002-2956, 32nd AIAA Fluid Dynamics Conference, St. Louis, June 2002. [ pdf ]
  47. H. Nishikawa, M. Rad, and P. L. Roe, A Third-Order Fluctuation-Splitting Scheme That Preserves Potential Flow, AIAA Paper 2001-2595, 15th AIAA Computational Fluid Dynamics Conference, Anaheim, June 2001. [ pdf ]
  48. H. Nishikawa, M. Rad, and P.L. Roe , Grids and Solutions from Residual Minimisation, Computational Fluid Dynamics 2000: Proceedings of the First International Conference on Computational Fluid Dynamics, ICCFD, Kyoto, Japan, 10-14 July 2000, Springer, 2001. [ pdf ]
  49. M. Rad, H. Nishikawa and P. L. Roe , Some Properties of Residual Distribution Schemes for Euler Equations, Computational Fluid Dynamics 2000: Proceedings of the First International Conference on Computational Fluid Dynamics, ICCFD, Kyoto, Japan, 10-14 July 2000, Springer, 2001. [ pdf ]

Written by Katate Masatsuka

July 30, 2019 at 9:54 am

私はとにかく前進したい

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どこにいても不満を感じることはある。組織、あるいは上司や同僚に対して、
評価されていないとか、不公平だとか、合理的でないとか、文句を言いたくなる
ことがあるだろう。それは構わないが、最も重要なことは「ではどうするのか」
ということだと思わないか? 思うだろ? 私もそう思う。

問題提起をし、それで状況が変わるのであればよいが、
多くの場合、何を言っても大して状況は変わらないと私は思っている。
それゆえ、私はとにかく進める道を見つけて前進することにしてきた。

大学院生時代、学会へ行かせてもらえなかった私は、とにかく
やれることや思いついたことをやり、論文の形で書き残していった。
後に、そのいくつかは本当に論文になった。また、その際に様々なコードを
書いていたからこそ、ろくに論文もない私が卒業直後ポスドクの職を得て、
さらにすぐに学会論文とジャーナル論文を出すことができた。

その後のポスドク時代、いわゆる「ボス」があまりにジャーナル投稿を渋り、
いつまでたっても論文を出せない状態が続いた頃、私は前進する為に、
彼の名前を外してジャーナルへ投稿した。その論文には「ボス」は何の
貢献もしていなかったので問題とはならなかった。さらにまたその後の
ポスドク時代には、その時の「ボス」があまりに建設的でないので、
彼が不在の間に新しい仕事を見つけて姿を消したこともあった。

研究費を打ち切られた時には、文句を言っても変わらないゆえ、すぐに別のところ
へプロポーザルを出し、その研究を続けることができるようになった。
研究所内で書いたコードは持ち出してはならないと言われたら、コードは外で
書くことにした。ある有名研究機関の研究者にアイデアを共有してあげた際、
一旦共有したら許可無しに他者に話してはならないと言われたので、
二度とアイデアを共有しないようにしてあげている。

私はとにかく常に前へ進みたいと思っている。

Written by Katate Masatsuka

July 28, 2019 at 10:07 pm

Posted in General

不純物、或いは学歴ロンダリング

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かつて私が東海大学から某他大学大学院に進学したとき、それを良く思わない人がいると聞いたことがある。昔の話だが、某他大学の教授が「うちの大学院卒の中には不純物がいるから採用の際には気をつけるように」と企業等に助言していたらしい。現在このような上位の他大学院への進学は「学歴ロンダリング」と呼ばれているようで、私はよく知らないが、やはり良く思われていないような雰囲気を感じる。ちなみに、私はその大学院を卒業しなかったので「学歴ロンダリング」にはならなかった(履歴書に記されていない)。

Written by Katate Masatsuka

May 26, 2019 at 7:34 am

Posted in About Author, General

雇用が不安定なのがいい

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私の場合は、雇用が不安定なのがいい。今も給料は全て期限付きの研究費から出ており、切れたら即解雇となる。これがいい。プロポーザルや論文など、やれることは全てやる。研究者である間に、出せる限りのアイデアを出しそれらを全て論文にして発表する。ここまでやってもクビにするのかというぐらいの成果を出し続ける。しかし、たとえ結果を出しても切られるときはあっさりと切られるのがこの世界だ。それは往往にして理不尽なものであるが、それも面白い。私が目指しているのは「死力を尽くした末の敗北」だ。そして本当に死力を尽くしていればそう簡単には敗北しない。

Written by Katate Masatsuka

May 25, 2019 at 9:14 pm

Posted in About Author, General

ローガン教に入信した

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ローガン教に入信した。「これを一つ買うだけで小さい文字も見えやすくなり、あなたの人生がガラリと変わりますよ!」みたいなウサン臭い謳い文句のせいで敬遠していたが、ものすごい見えやすさで即座に入信してしまった。確かに人生が変わった。携帯を顔面スレスレで操作することができる。みそ汁を、具をきちんと認識しながらすすることができる。また、薄暗いBarでメニューを隅々まで読み、そこに書かれていない裏メニューを注文することだってできるだろう。 ゲーテは「学問と芸術を持っている者は、同時に宗教を持っている。学問と芸術を持たない者は、宗教を持て!」と言ったそうだ。そう、学問や芸術を持っていようがいまいが、人はローガン教を持つべきである。

Written by Katate Masatsuka

January 28, 2019 at 11:24 pm

Posted in About Author, General

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