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