北島研究室

香川大学創造工学部 創造工学科

お問い合わせ

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業績一覧(Research Achivement)

著書 [Book]

  • (1) H. Kitajima, T. Yoshinaga, J. Imura and K. Aihara, Robust bifurcation analysis based on degree of stability, in Analysis and Control of Complex Dynamical Systems, Ed. K. Aihara, J. Imura and T. Ueta, Springer, pp.21-31, March 2015, ISBN:978-4-431-55012-9, doi:10.1007/978-4-431-55013-6.
  • (2) H. Kitajima and T. Yoshinaga, A method for constructing a robust system against unexpected parameter variation, in Analysis and Control of Complex Dynamical Systems, Ed. K. Aihara, J. Imura and T. Ueta, Springer, pp.41-48, March 2015.

論文 [Paper]

  • (1) 北島博之,川上博, 接線分岐曲線を自動追跡きるアルゴリズムとその Duffing方程式への応用, 信学論(A),vol. J78-A, no.7, pp.806-810, July 1995.
  • (2) T. Yoshinaga, H. Kitajima and H. Kawakami, Bifurcations in a Coupled Rossler System, IEICE Trans. Fundamentals, no.10, pp.1276-1280, Oct. 1995. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (3) 北島博之,川上博, 固定点多様体を追跡する1アルゴリズムについて, 信学論(A),vol.J79-A, no.5, pp.1122-1124, May 1996.
  • (4) H. Kitajima, T. Yoshinaga and H. Kawakami, Codimension two bifurcation observed in a phase converter circuit, IEICE Trans. Fundamentals, no.10, pp.1563-1567, Oct. 1996. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (5) 北島博之,川上博, 周期倍分岐とNeimark-Sacker 分岐列について, 信学論(A),vol.J80-A, no.3, pp.491-498, March 1997.
  • (6) T. Yoshinaga, H. Kitajima, H. Kawakami and C. Mira, A method to calculate homoclinic points of a two-dimensional noninvertible map, IEICE Trans. Fundamentals, pp.1560-1566, Sep. 1997. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (7) H. Kitajima, Y. Katsuta and H. Kawakami, Bifurcations of periodic solutions in a coupled oscillator with voltage ports,'' IEICE Trans. Fundamentals, pp.476-482, March 1998. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (8) H. Kitajima, Y. Noumi, T. Kousaka and H. Kawakami, Forced synchronization of coupled oscillators, IEICE Trans. Fundamentals, no.4, pp.700-703, April 1999. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (9) H. Kitajima, C. Mira and H. Kawakami, A method to calculate basin bifurcation sets for a two-dimensional noninvertible map, International Journal of Bifurcation and Chaos, vol.10, no.8, pp.2001--2014, 2000.
  • (10) H. Kitajima, T. Yoshinaga, K. Aihara and H. Kawakami, Burst firing and bifurcation in chaotic neural networks with ring structure, International Journal of Bifurcation and Chaos, vol.11, no.6, pp.1631--1643, 2001. [PDF]
  • (11) H. Kitajima and H. Kawakami, Bifurcation and chaos of synchronized states in oscillators with hard characteristics and state coupling, International Journal of Bifurcation and Chaos, vol.12, no.5, pp.1199--1206, 2002. [PDF]
  • (12) 荒川 雅生,北島 博之,松永 貴輝,石田 雅浩,森西 隆寛, 画像処理を利用した感性設計システム開発, 機械学会論文集C編,vol.69, no.677, pp.104--110, Jan. 2003.
  • (13) H. Kitajima, T. Yoshinaga, K. Aihara and H. Kawakami, Itinerant memory dynamics and global bifurcations in chaotic neural networks, Chaos:An Interdisciplinary Journal of Nonlinear Science, vol.13, no.3, pp.1122--1132, 2003.
  • (14) H. Kitajima, H. Kawakami and T. Hattori, Synchronized states observed in coupled four oscillators, IEICE Trans. Fundamentals, no.3, pp.712--717, March 2005. [PDF] [copyright@2006 IEICE, No.06RB0104] (IEICE Transactions Online)
  • (15) H. Kitajima and J. Kurths, Synchronized firing of FitzHugh-Nagumo neurons by noise, Chaos:An Interdisciplinary Journal of Nonlinear Science, vol.15, no.2, 023704, 2005.
  • (16) T. Izumi, T. Hattori, H. Kitajima and T. Yamasaki, Characters recognition method based on vector field and simple linear regression model, ECTI Trans., vol.1, no.2, pp.118 --125, 2005.
  • (17) K. Tsumoto, H. Kitajima, T. Yoshinaga, K. Aihara and H. Kawakami, ''Bifurcation in Morris-Lecar neuron model,'' Neurocomputing, vol.69, no.4-6, pp.293-316, 2006.
  • (18) E. Ioka, K. Tsumoto and H. Kitajima, ''Forced Synchronization of Class I and Class II Neurons,'' Journal of Signal Processing, vol.11, no.1, pp.111-115, Jan. 2007.
  • (19) 泉 哲也, 服部 哲郎, 舒 清宇, 北島 博之, 山崎 敏範, アフィン変換近似推定による一般背景下の複数人物の顔認識, 電気学会論文誌C, vol.127, no.4, pp.623--629, April 2007.
  • (20) 泉哲也,服部哲郎,北島博之,山崎敏範, ベクトル場に基づく自動手書き文字認識, 電気学会論文誌C, vol.127, no.4, pp.489--496, April 2007.
  • (21) H. Kitajima, and J. Kurths, Forced synchronization in Morris-Lecar neurons, International Journal of Bifurcation and Chaos, vol.17, no.10, pp.3523--3528, 2007.
  • (22) Y. Tanaka, H. Kawada, K. Hirano, M. Ishikawa and H. Kitajima, Automated manipulation of non-spherical microobjects using optical tweezers combined with image processing technique, Optics Express, vol.16, no.19, 15115, Sept. 2008.
  • (23) Y. Horikawa and H. Kitajima, Duration of transient oscillations in ring networks of unidirectionally coupled neurons, Physica D, vol.238, pp.216--225, 2009.
  • (24) H. Kitajima and Y. Horikawa, Mechanism of long transient oscillations in cyclic coupled systems, Chaos, Solitons & Fractals, vol.42, no.3, pp.1854--1859, 2009.
  • (25) 朝長伸吾,北島博之,高坂拓司, 断続動作特性を有する結合発振器にみられる同期現象, 電気学会論文誌C, vol.129, no.7, pp.1444--1450, 2009.
  • (26) T. Kousaka, K. Fujimoto, Y. Ma, H. Kitajima, T. Ueta and H. Kawakami, Bifurcations observed in BVP oscillator with periodically switched RC circuit, Dynamics of Continuous, Discrete and Impulsive Systems, vol.16, no.6, pp.811--824, 2009.
  • (27) Y. Horikawa and H. Kitajima, Properties of variations in the periods of ring neural oscillators with noise, Neurocomputing, vol.72, pp.3789--3794, 2009.
  • (28) H. Kitajima and J. Kurths, Bifurcation in neuronal networks with hub structure, Physica A, vol.388, pp.4499--4508, 2009.
  • (29) Y. Horikawa and H. Kitajima, Effects of noise and variations on the duration of transient oscillations in unidirectionally coupled bistable ring networks, Phys. Rev. E 80, 021934, 2009.
  • (30) Y. Horikawa and H. Kitajima, Bifurcation and stabilization of oscillations in ring neural networks with inertia, Physica D, vol.238, pp.2409--2418, 2009.
  • (31) Y. Tanaka, H. Kawada, S. Tsutsui, M. Ishikawa and H. Kitajima, Dynamic micro-bead arrays using optical tweezers combined with intelligent control techniques, Optics Express, vol.17, issue 26, pp.24102--24111, Dec. 2009.
  • (32) 田中芳夫,川田博之,石川満,北島博之, 群論に基づいた動的微粒子アレイのソーティング法, 計測自動制御学会論文集, vol.46, no.4, pp.253--255, 2010.
  • (33) Y. Horikawa and H. Kitajima, Noise-sustained propagation of unstable pulses due to exponential interaction between pulse fronts in bistable systems with flows, Phys. Rev. E 81, 041101, 2010.
  • (34) Y. Horikawa and H. Kitajima, Properties of the transmission of pulse sequences in a bistable chain of unidirectionally coupled neurons, Neurocomputing, vol.73 pp.3169--3178, 2010.
  • (35) E. Ioka, H. Kitajima and Y. Matsuya, Synchronization in Neurons Driven by Synaptic Currents with Multiple Frequencies, IEEJ Trans. vol.131-C, no.3, pp.521--527, 2011. (37) Y. Horikawa and H. Kitajima, Exponential transient rotating waves in a bistable ring of unidirectionally coupled maps, Physica D, vol.241, pp.106--114, 2012.
  • (36) N. Hashimoto and H. Kitajima, Autonomous control method for wireless sensor networks using pattern formation, Journal of Signal Processing, vol.16, no.5, pp.427--432, 2012.
  • (37) Y. Horikawa and H. Kitajima, Transient chaotic rotating waves in a ring of unidirectionally coupled symmetric Bonhoeffer-van der Pol oscillators near a codimension-two bifurcation point, Chaos, vol.22, 033115, 2012.
  • (38) H. Kitajima and T. Yoshihara, Cluster synchronization in coupled systems with hub structure, Physica D, vol.241, pp.1804--1810, 2012.
  • (39) Y. Horikawa and H. Kitajima, Quasiperiodic and exponential transient phase waves and their bifurcations in a ring of unidirectionally coupled parametric oscillators, Nonlinear Dynamics, vol.70, pp.1079--1094, 2012.
  • (40) Y. Tanaka, S. Tsutsui and H. Kitajima, Design of hybrid optical tweezers system for controlled three-dimensional micromanipulation, Opt. Eng. 52(4), 043002 2013.
  • (41) H. Kitajima, T. Yoshinaga, J. Imura and K. Aihara, Robust bifurcation analysis based on optimization of degree of stability, Int. J. of Innovative Computing Information and Control, vol.11(1), pp.153-162, 2015.
  • (42) H. Kitajima, E. Ioka and T. Yazawa, Generation mechanism of alternans in Luo-Rudy model, International Journal of Bifurcation and Chaos, 26, 1650075, 2016. (9 pages)
  • (43) K. Kato and H. Kitajima, Firing patterns in coupled systems of inhibitory neurons, Journal of Signal Processing, vol.20, no.3, pp.83-90, 2016.
  • (44) S. Shimada and H. Kitajima, Development of nonlinear analysis tools on FPGA, Nonlinear Theory and Its Applications, IEICE, vol.8, no.2, pp.173--179, Apr. 2017.
  • (45) Y. Horikawa, H. Kitajima and H. Matsushita, Fold-pitchfork bifurcation, Arnold tongues and multiple chaotic attractors in a minimal network of three sigmoidal neurons, International Journal of Bifurcation and Chaos, 28, 1850123, 2018. (28 pages)
  • (46) H. Kohno, Y. Tanji, K. Fujimoto, H. Kitajima, Y. Horikawa, and N. Takahashi, Reconstruction of CT Images Using Iterative Least Squares Methods with Nonnegative Constraint, Journal of Signal Processing, vol.23, no.2, pp.41--48, 2019.
  • (47) H. Kitajima and T. Yazawa, Flip-flip bifurcation in a mathematical cardiac system, International Journal of Bifurcation and Chaos, 29, 4, 1950045, 2019. (11 pages)
  • (48) Y. Horikawa, H. Kitajima and H. Matsushita, Quasiperiodicity and chaos through the Hopf-Hopf bifurcation in minimal ring neural oscillators due to a single shortcut, International Journal of Bifurcation and Chaos, 29, 5, 1950065, 2019. (19 pages)
  • (49) E. Ioka, K. Tsumoto and H. Kitajima, Synchronous firing frequency dependence in unidirectional coupled neuronal networks with chemical synapses, Neurocomputing, 350, pp.202--211, 2019.
  • (50) M. Ishizawa, et al., Development of a Novel Algorithm to Detect Atrial Fibrillation Using an Automated Blood Pressure Monitor with an Irregular Heartbeat Detector, Circulation Journal, 2019.
  • (51) H. Kitajima, K. Fujimoto and T. Yazawa, Pulsus alternans in a crustacean cardiac model, Physica D, 2019.

国際会議 [International Conference]

  • (1) H. Kitajima, T. Yoshinaga and H. Kawakami, Synchronization in two coupled oscillators with three ports, Proc. NOLTA'94, pp.89-92, Ibusuki, Japan, Oct. 1994. [PDF]
  • (2) H. Kitajima, T. Yoshinaga and H. Kawakami, Codimension two bifurcation observed in a phase converter circuit, Proc. NOLTA'95, pp.335-338, Las Vegas, U.S.A. Dec. 1995. [PDF]
  • (3) H. Kitajima and H. Kawakami, Bifurcation of a unidirectional coupled oscillators, Proc. NOLTA'96, pp.21-24, Kouchi, Japan, Oct. 1996.
  • (4) H. Kitajima and H. Kawakami, Bifurcation and chaos in unidirectionally coupled oscillators, Proc. NOLTA'97, pp.65-68, Hawaii, U.S.A., Nov. 1997. [PDF]
  • (5) H. Kitajima, Y. Noumi and H. Kawakami, Forced synchronization of coupled oscillators, Proc. NOLTA'97, pp.573-576, Hawaii, U.S.A., Nov. 1997. [PDF]
  • (6) H. Kitajima and H. Kawakami, Bifurcation of periodic states in coupled BVP oscillators with hard characteristics, Proc. NOLTA'98, pp.381-384, Crans-Montana, Switzerland, Sep. 1998. [PDF]
  • (7) H. Kitajima, H. Kawakami and C. Mira, A method to calculate basin bifurcation sets for a two-dimensional noninvertible map, Proc. NOLTA'99, pp.271--274, Hawaii, U.S.A., Dec. 1999. [PDF]
  • (8) H. Kitajima and H. Kawakami, Bifurcation of periodic states in coupled BVP neurons with external impulsive forces, Proc. NOLTA'2000, pp.265--268, Dresden, Germany, Sep. 2000. [PDF]
  • (9) Y. Yamakawa, H. Kitajima and H. Kawakami, Bifurcation of periodic states in coupled oscillators with hard characteristics, Proc. NOLTA'2000, pp.559--562, Dresden, Germany, Sep. 2000.
  • (10) H. Kitajima and H. Kawakami, Bifurcation and chaos observed in coupled BVP neurons with external impulsive forces, Proc. IEEE/IECON'2000, pp.2048--2053, Nagoya, Japan, Oct. 2000.
  • (11) H. Kitajima and H. Kawakami, Bifurcation in coupled BVP neurons with external impulsive forces, Proc. IEEE/ISCAS'2001, pp.III285--III288, Sydney, Australia, May 2001. [PDF]
  • (12) H. Kitajima and H. Kawakami, Chaotic burst and bifurcation in coupled FitzHugh-Nagumo model, Proc. ITC-CSCC'2001, pp.877--880, Tokushima, Japan, July 2001.
  • (13) T. Hattori, H. Kitajima and T. Fuke, A trial for fast numerical computation using FPGA, Proc. ITC-CSCC'2001, pp.303--306, Tokushima, Japan, July 2001.
  • (14) H. Kitajima, T. Yamasaki and T. Hattori, A method of obtaining the aesthetic impression from paintings, Proc. KANSEI'2001, pp.141--144, Muroran, Japan, Oct. 2001.
  • (15) H. Kitajima, T. Matsunaga, M. Arakawa, M. Ishida and T. Morinishi, Kansei design using 1/f fluctuations and development of integrated image processing system, Proc. KANSEI'2001, pp.223--226, Muroran, Japan, Oct. 2001.
  • (16) H. Tominaga, T. Yamasaki, M. Aono, Y. Matsubara and H. Kitajima, Web-based training system for handwriting of Japanese Kanji characters, Proc. KANSEI'2001, pp.245--248, Muroran, Japan, Oct. 2001.
  • (17) H. Kitajima and H. Kawakami, Oscillatory modes generated by Hopf bifurcations in coupled four oscillators, Proc. ITC-CSCC'2002, pp.1634--1637, Phuket, Thailand, July 2002.
  • (18) T. Hattori, H. Kitajima and T. Yamasaki, Face recognition among others under general background, Proc. ACIVS'2002, pp.239--244, Ghent, Belgium, Sept. 2002.
  • (19) H. Kitajima and H. Kawakami, Synchronized states observed in coupled four oscillators, Proc. NOLTA'2002, pp.467--470, Xi'an, China, Oct. 2002. [PDF]
  • (20) T. Hattori, H. Kitajima, O. Matoba and B. Javidi, Numerical experimentation of image recognition using quantum computation, Proc. NOLTA'2002, pp.595--598, Xi'an, China, Oct. 2002.
  • (21) H. Kitajima, K. Tsumoto, H. Kawakami and T. Hattori, Chaotic synchronization in synaptically coupled BVP neurons with external impulsive forces, Proc. ECCTD'03, pp.314--I317, Krakow, Poland, Sep. 2003. [PDF]
  • (22) H. Kitajima and M. Arakawa, A method of Kansei design using 1/f fluctuations, Journal of the Asian Design International Conference, vol.1, P-12, Tsukuba, Japan, Oct. 2003.
  • (23) H. Kitajima and T. Hattori, Synchronized firing of FitzHugh-Nagumo neurons by noise, Proc. IEEE/NDES'04, pp.194--197, Evora, Portugal, May 2004. [PDF]
  • (24) T. Hattori, T. Izumi, H. Kitajima and T. Yamasaki, KANSEI information extraction from character patterns using a modified Fourier transform, Proc. 2004 Sino-Japan Symposium on KANSEI & Artificial Life, pp.36 -39, Beijin, China, July 2004.
  • (25) T. Izumi, T. Hattori, H. Kitajima and T. Yamasaki, Method for handwritten characters recognition based on a vector field, Proc. ICINCO'04, pp.417--420, Setubal, Portugal, Aug. 2004.
  • (26) T. Ishii and H. Kitajima, Oscillation in cyclic coupled neurons, Proc. NCSP'05, pp.97--100, Hawaii, U.S.A., March 2005.
  • (27) H. Kitajima and T. Hattori, Forced synchronization in Morris-Lecar neurons, Proc. IEEE/NDES'05, s10-3, Potsdam, Germany, Sept. 2005.
  • (28) E. Ioka and H. Kitajima, Forced synchronization in class I and II neurons, Proc. NCSP'06, pp.58--61, Hawaii, U.S.A., March 2006.
  • (29) H. Kitajima, T. Ishii and T. Hattori, Oscillation mechanism in cyclic coupled neurons, Proc. NOLTA'06, pp.623--626, Bologna, Italy, Sept. 2006.
  • (30) E. Ioka and H. Kitajima, Forced synchronization in class I and class II neurons with both electrical and chemical synapses, Proc. NOLTA'06, pp.971--974, Bologna, Italy, Sept. 2006.
  • (31) K. Tsumoto, H. Kitajima and K. Aihara, Synchronous activities in neuronal networks composed of homogeneous and heterogeneous neurons, Proc. NOLTA'06, pp.751--754, Bologna, Italy, Sept. 2006.
  • (32) E. Ioka and H. Kitajima, Synchronization of uni-directionally coupled class I and class II neurons, Proc. IEEE/NDES'07, pp.257--260, Tokushima, Japan, July 2007.
  • (33) H. Kitajima, Synchronization in star-coupled neuronal networks, Proc. IEEE/NDES'07, pp.186--189, Tokushima, Japan, July 2007.
  • (34) Y. Horikawa and H. Kitajima, Properties of transient oscillations in a circuit of diffusively coupled inverting amplifiers, Proc. ICNF'07, pp.569--572, Tokyo, Japan, Sept. 2007.
  • (35) H. Kitajima and Y. Horikawa, Oscillation in cyclic coupled systems, Proc. NOLTA'07, pp.453--456, Vancouver, Canada, Sept. 2007.
  • (36) R. Ochi and H. Kitajima, Synchronization in coupled Morris-Lecar neurons with class I and class II excitability, Proc. NOLTA'07, pp.373--376, Vancouver, Canada, Sept. 2007.
  • (37) H. Shigi and H. Kitajima, Quantification of fatigue degree from pulse wave, Proc. NOLTA'07, pp.204--207, Vancouver, Canada, Sept. 2007.
  • (38) E. Ioka, H. Kitajima and K. Tsumoto, Synchronization of Bidirectionally Coupled Neurons with Asymmetrical Inputs, Proc. NCSP'08, pp.319--322, Gold Coast, Australia, March 2008.
  • (39) H. Kitajima, Synchronization in neuronal networks with hub structure, Proc. SCME'08, pp.101--104, Takamatsu, Japan, May 2008.
  • (40) H. Kitajima, Bifurcation in neuronal networks with hub structure, (invited paper) Proc. IEEE/NDES'08, pp.36--37, Nizhny Novgord, Russia, July 2008.
  • (41) E. Ioka and H. Kitajima, Synchronization in coupled neurons with multiple firing frequencies, Proc. SSJW'08, p.24, Takamatsu, Japan, Aug. 2008
  • (42) Y. Horikawa and H. Kitajima, Properties of the Duration of Transient Oscillations in a Ring Neural Network, Proc. NOLTA'08, pp.520--523, Budapest, Hungary, Sept. 2008.
  • (43) E. Ioka and H. Kitajima, Bifurcation in Coupled Neurons with Multiple Frequencies, Proc. NOLTA'08, pp.432--435, Budapest, Hungary, Sept. 2008.
  • (44) R. Ochi, H. Kitajima and E. Ioka Synchronization in synaptically coupled neurons with hub structure , Proc. NOLTA'08, pp.345--348, Budapest, Hungary, Sept. 2008. [PDF]
  • (45) Y. Tanaka, H. Kawada, K. Hirano, M. Ishikawa and H. Kitajima, Non-contact micromanipulation system with computer vision, Proc. BMEC'08, pp.2400--2404, Antwerp, Belgium, Nov. 2008.
  • (46) I. Tanimoto and H. Kitajima, Bifurcations in a system of associate memory, Proc. NCSP'09, pp.81--84, Hawaii, U.S.A., March 2009.
  • (47) H. Kitajima, Synchronization in synaptically coupled neurons with small-world structure, Proc. IEEE/NDES'09, pp.70--73, Rapperswil, Switzerland, June 2009.
  • (48) Y. Tanaka, H. Kawada, S. Tsutsui, M. Ishikawa and H. Kitajima, Automated Assembly of Dynamic Micro-Bead Arrays Using a Multi-arm Laser Manipulator with Computer Vision, Proc. IFMBE, vol.25/VIII pp.5-7, Munich, Germany, Sept. 2009.
  • (49) E. Ioka, K. Tsumoto and H. Kitajima, Bifurcation in Coupled Fast-Spiking Neurons Model, Proc. NOLTA'09, pp.167--170, Sapporo, Japan, Oct. 2009.
  • (50) T. Yoshihara and H. Kitajima, Synchronization in coupled systems with hub structure, Proc. NCSP'10, pp.484--487, Honolulu, U.S.A., March 2010.
  • (51) H. Kitajima and T. Yazawa, Electric Alternans in a Mathematical Model of Ventricular Muscle, Proc. AIMS/DCDS'10, p.6, Dresden, Germany, May 2010.
  • (52) T. Yazawa and H. Kitajima, Sudden death and natural death: DFA and Poincare map of heartbeat, Proc. AIMS/DCDS'10, p.7, Dresden, Germany, May 2010.
  • (53) Y. Horikawa and H. Kitajima, Exponential Transient Oscillations and Their Stabilization in a Bistable Ring of Unidirectionally Coupled Maps, Proc. IEEE/NDES'10, pp.226--229, Dresden, Germany, May 2010.
  • (54) Y. Tanaka, S. Tsutsui, M. Ishikawa and H. Kitajima, Dynamical Micro-bead Pattern Forming using Laser Manipulation Techniques, Proc. NOLTA'10, pp.173--176, Krakow, Poland, Sept. 2010.
  • (55) E. Ioka, Y. Matsuya and H. Kitajima, Bifurcation in mutually coupled three neurons with inhibitory synapses, Proc. ECCTD'11, pp.633--636, Linkoping, Sweden, August 2011.
  • (56) Y. Tanaka, S. Tsutsui, M. Ishikawa and H. Kitajima, Dynamical forming of massive micro-bead arrays with hybrid optical tweezers, Proc. MBEC'11, pp.1283--1286, Budapest, Hungary, Sept. 2011.
  • (57) Y. Horikawa and H. Kitajima, Exponential Transient Phase Waves in a Ring of Unidirectionally Coupled Parametric Oscillators, Proc. NOLTA'11, pp.216--219, Kobe, Japan, Sept. 2011.
  • (58) M. Hayashi and H. Kitajima, Cluster Synchronization in Inhibitory Coupled Neurons, Proc. NOLTA'11, pp.346--349, Kobe, Japan, Sept. 2011.
  • (59) N. Hashimoto and H. Kitajima, Autonomous control method for wireless sensor networks using pattern formation, Proc. NOLTA'11, pp.180--183, Kobe, Japan, Sept. 2011.
  • (60) H. Kitajima and T. Yazawa, Modified Luo-Rudy Model and its Bifurcation Analysis for Suppressing Alternans, Proc. NOLTA'11, pp.390--393, Kobe, Japan, Sept. 2011.
  • (61) Y. Horikawa and H. Kitajima, Exponential Transient Rotating Waves and Their Bifurcations in a Ring of Unidirectionally Coupled Bistable Lorenz Systems, Proc. IUTAM2011, pp.-, Kyoto, Japan, Nov. 2011.
  • (62) N. Hashimoto and H. Kitajima, CA-based autonomous control method for networks of randomly distributed sensors, Proc. NCSP'12, pp.206--209, Honolulu, U.S.A., March 2012.
  • (63) M. Hayashi and H. Kitajima, Synchronization in inhibitory coupled Morris-Lecar neurons, Proc. NCSP'12, pp.667--670, Honolulu, U.S.A., March 2012.
  • (64) K. Kai and H. Kitajima, Bifurcations of Synchronized States in Inhibitory Coupled Neurons, Proc. NOLTA'12, pp.771--774, Mallorca, Spain, Oct. 2012.
  • (65) E. Ioka, H. Kitajima, Y. Matsuya, Synchronization in Coupled Excitatory and Inhibitory Neurons with Ladder Structure, Proc. NOLTA'12, pp.775--778, Mallorca, Spain, Oct. 2012.
  • (66) J. Tada, T. Yamaguchi and H. Kitajima, Development of FPGA simulator for bifurcation analysis, Proc. NCSP'13, pp.45--48, Kona, U.S.A., March 2013.
  • (67) K. Fujimoto, T. Otsu, T. Yoshinaga, T. Ueta, H. Kitajima and K. Aihara, Controlling Method to Avoid Bifurcations of Periodic Points Using Maximum Lyapunov Exponent, Proc. NOLTA'13, pp.158--161, Santa Fe, USA, Sept. 2013.
  • (68) T. Yazawa, H. Kitajima and A. Shimizu, A simulation study of alternans-arrhythmia based on physiology of invertebrate heart, Proc. WCECS'13, pp.604--609, San Francisco, U.S.A., Oct. 2013.
  • (69) E. Nagao and H. Kitajima, Autonomous control method for sensor networks using cellular automaton, Proc. NCSP'14, pp.793--796, Honolulu, USA, March 2014.
  • (70) T. Yazawa and H. Kitajima Alternans-Arrhythmia: A Simulation Study Based on Invertebrate Heart Neurobiology, Proc. IMCIC'14, vol. 1, pp. 184-189, Orlando, USA, March 2014.
  • (71) T. Tarumoto, T. Yazawa and H. Kitajima, “Alternans in a mathematical crustacean cardiac model,” Proc. NCSP'15, pp.611--614, Kuala Lumpur, Malaysia, March 2015.
  • (72) S. Shimada and H. Kitajima, Development of Nonlinear Analysis Tools on FPGA, Proc. NOLTA'15, pp.594--597, Hong Kong, China, Dec. 2015.
  • (73) K. Kato, K. Fujimoto and H. Kitajima, “Bifurcations in a System of Inhibitory Coupled Neurons,” Proc. NOLTA'15, pp.361--364, Hong Kong, China, Dec. 2015.
  • (74) A. Takahashi, H. Kitajima and T. Yazawa, Bifurcations related to QT prolongation in a mathematical cardiac model, Proc. NCSP'16, pp.727--730, Honolulu, USA, March 2016.
  • (75) K. Ogoshi, H. Kitajima and T. Yazawa, Detecting bifurcations from time series data, Proc. NOLTA'16, pp.3--6, Yugawara, Japan, Nov. 2016.
  • (76) A. Takahashi, H. Kitajima and T. Yazawa, Bifurcation analysis for early afterdepolarization in Shannon model, Proc. NOLTA'16, pp.7--10, Yugawara, Japan, Nov. 2016.
  • (77) A. Abe, H. Kitajima and T. Yazawa, Alternans in a Crustacean Cardiac Model, Proc. NOLTA'16, pp.326--329, Yugawara, Japan, Nov. 2016.
  • (78) H. Kitajima and T. Yazawa, Discordant alternans and codimension-three bifurcations in coupled Luo-Rudy models, Proc. NOLTA'16, pp.330--333, Yugawara, Japan, Nov. 2016.
  • (79) T. Yazawa and H. Kitajima, Alternans generation crustacean heart model: a simulation - electrophysiology study, Proc. NOLTA'16, pp.322--325, Yugawara, Japan, Nov. 2016.
  • (80) H. Kohno, Y. Tanji, K. Fujimoto, H. Kitajima, Yo Horikawa and N. Takahashi, Reconstruction of CT Images by Iterative Least Squares Methods with Nonnegative Constraint, Proc. NOLTA'18, pp.132--135, Tarragona, Spain, Sept. 2018.
  • (81) Y. Ito, H. Kitajima and T. Yazawa, Bifurcations related to transient EAD in a mathematical cardiac model, Proc. NCSP'19, pp.546--549, Honolulu, USA, March 2019.
  • (82) Y. Ito, H. Kitajima and T. Yazawa, Generation mechanism of transient EAD in a mathematical ventricular model, Proc. FAOPS'2019, 2P-054, Kobe, Japan, March 2019.
  • (83) H. Kitajima and T. Yazawa, Alternans in a Mathematical Crustacean Cardiac Model, Proc. FAOPS'2019, 2P-055, Kobe, Japan, March 2019.
  • (84) T. Yazawa and H. Kitajima, A life-threatening pulse, alternans, lowers the scaling exponent: A heartbeat interval time series analysis study using mDFA from invertebrates to humans, Proc. SCTPLS'19, pp.--, Orange, USA, August 2019.