(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]
(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.
(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.
(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.
(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, vol.83 no.12 pp.2428--2433, 2019.
(51) H. Kitajima, K. Fujimoto and T. Yazawa,
Pulsus alternans in a crustacean cardiac model,
Physica D, 402, 132253, 2019.
(52) H. Kitajima and T. Yazawa,
Bifurcation analysis on generation of early afterdepolarization
in a mathematical cardiac model,
International Journal of Bifurcation and Chaos, 31(12) 2150179, 2021.
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.
(85) S. Wada T. Ryugou and H. Kitajima,
Dynamical systems analysis of learning process in neural networks,
Proc. NCSP'20, pp.401--404, Honolulu, USA, March 2020.
(86)D. Kondo and H. Kitajima,
Simplification of a crustacean mathematical cardiac model and its bifurcation analysis,
Proc. NCSP'21, pp.9--12, online, March 2021.
(87)R. Fukutomi and H. Kitajima,
Classification of chaos and noise using convolution neural network,
Proc. NCSP'21, pp.250--253, online, March 2021.
(88)R. Fujiwara and H. Kitajima,
Bifurcation analysis for EAD generation in a mathematical ventricular cell model,
Proc. NCSP'21, pp.5--8, online, March 2021.
(89) R. Fujiwara and H. Kitajima,
Analysis of arrhythmias generation in a mathematical ventricular cell model,
Proc. NOLTA'22, pp.151--154, online, Dec. 2022.
(90)H. Yamamoto and H. Kitajima,
Transient early afterdepolarization in a methematical cardiac model,
Proc. NOLTA'22, pp.381--384, online, Dec. 2022.
(91)K. Abe, H. Kitajima and T. Yazawa,
Modification of a mathematical cardiac model to produce more realistic
membrane potentials,
Proc. NOLTA'22, pp.377--380, online, Dec. 2022.