Hajime Igarashi
   
 Graduate School of Information Science and Technology
    
Kita 14, Nishi 9, Kita-ku, Sapporo 060-0814, Japan



    

Japanese


Research
  
(a) Development of novel methods for computational electromagnetism
    Books (in Japanese)
    
T. Honma, H. Igarashi, H. Kawaguchi,Numerical Electromagntic Dynamics,Morikita,2002
     H. Igarashi, A. Kameari, Y. Kagawa, I. Nishiguchi, New Computational Electromagnetism,Baifu-kan, 2003

    
  
    Fundamentals in Computational Electromagnetism
    
H. Igarashi, "On the Property of the Curl-Curl matrix in Finite Element Analysis with Edge Elements",
     IEEE Trans. Magn., vol. 37, no.5, pp.3129-3132 (2001)
    

    H. Igarashi and T. Honma, On the Convergence of ICCG Applied to Finite Element Equation for Quasi-Static Fields,
    IEEE Trans. Magn.vol.38, 565-568, 2002
     

    H. Igarashi and T. Honma, "Convergence of preconditioned conjugate gradient method applied to driven microwave problems",
    IEEE Trans. Magn., 39, 3, 1705 -1708, 2003.
     

    H. Igarashi, N.Yamamoto, Effect of preconditioning in edge-based finite-element method,
    IEEE TRANSACTIONS ON MAGNETICS, vol.44 no.6 pp.942-945, 2008

  (b) Industrial application of computational electromagnetism
    Plasma surface waves
    
 H. Igarashi, K. Watanabe, T. Ito, T. Fukuda and T. Honma, "A Finite Element Analysis of Surface Wave Plasmas",
     IEEE Trans. Magn., vol.40, no.2, pp. 605-608, 2004.

 

    Modeling of steel laminations
     
H. Igarashi, K.Watanabe, A.Kost, A reduced model for finite element analysis of steel laminations,
     IEEE Transactions on Magnetics, vol. 42, no.4, 739 - 742, 2006

    Modeling of magnetis hysteresis
     
D. Lederer, H. Igarashi, T. Honma and A. Kost, On the parameter identification and application of
     the Jiles-Atherton hysteresis model for numerical modelling of measured characteristics
     IEEE Trans. Magn., vol.35, 1211-1214" 1999


     
D. Lederer, H. Igarashi, A. Kost and T. Honma" Effective Reluctivity Calculation versus Time Step Calculation
     of Magnetic Shielding with Ferromagnetic Material COMPEL "vol.18, no.3, 410-421" 1999


  (c) Optimization of electromagnetis devices
    Optimization based on immune algorithm
     
F.Campelo, F.G.Guimaraes, H.Igarashi, J.A.Ramirez, S.Noguchi, A modified immune network algorithm
     for multimodal electromagnetic problems
     IEEE Transactions on Magnetics, vol. 42, no.4, 1111 - 1114, 2006

    Optimization taking uncertainty into accouont
     
T. Maruyama, H. Igarashi, Effective robust optimization based on genetic algorithm,
     IEEE TRANSACTIONS ON MAGNETICS, vol.44, no.6, pp.990-993, 2008


   
 Topology optimization
     K.Watanabe; F.Campelo; H.Igarashi, Topology Optimization Based on Immune Algorithm and Multigrid Method
     IEEE Transactions on Magnetics, vol.43, no.4, 1637 - 1640, 2007


  (d) Inverse Problems
   Indentification of magnetization distribution in magnets
    
H. Igarashi, T. Honma and A. Kost" Inverse Inference of Magnetization Distribution in Cylindrical Permanent Magnets
    IEEE Trans. Magn. vol.36, pp.1168-1171, 2000

   Identification of permeabillity and permittivity
    
H. Igarashi and T. Honma, "A Direct Reconstruction of Magnetic Charge for Non-Destructive Testing "
    Electromagnetic Nondestructive Evaluation IV, IOS Press" 29-34, 2002

    

  (e) RFID, Wireless sensors
   Optimization of antennas for RFID
    
Y. Watanabe, K. Watanabe, H. Igarashi, FDTD Analysis of UHF-band RFID Considering Dielectric Effects, presented at EMF2009, Italy.
    
H. Makimura, K. Watanabe, H. Igarashi, Optimization of Meander Line Antenna on Dielectric Substrate for UHF-band RFID, ibid.

Publication list