Committee 
Date Time 
Place 
Paper Title / Authors 
Abstract 
Paper # 
CCS, NLP 
20230609 13:30 
Tokyo 
Tokyo City Univ. 
Bifurcation analysis and simulation of a biological switch model Quankai Zhang, Tetsushi Ueta (Tokushima Univ) NLP202323 CCS202311 
Using a mathematical model of biological switches, we examine the phenomenon of cell differentiation under a cyclic exte... [more] 
NLP202323 CCS202311 pp.4548 
CCS, NLP 
20230609 15:25 
Tokyo 
Tokyo City Univ. 
Multivibrator as Slowfast Dynamics
 Canard Explosion and its Circuit Response  Seiya Amoh, Tetsushi Ueta (Tokushima Univ.) NLP202327 CCS202315 
Slowfast dynamical systems are ordinary differential equations with significantly different time scales, which can exhi... [more] 
NLP202327 CCS202315 pp.6164 
CCS, NLP 
20230609 15:50 
Tokyo 
Tokyo City Univ. 
Laminar stabilization control in chaos intermittency Michiru Katayama, Kenji Ikeda, Tetsushi Ueta (Tokushima Univ.) NLP202328 CCS202316 
Intermittency gives the irregular switching of almost periodic (laminar)
and chaotic (burst) motions, and can be confi... [more] 
NLP202328 CCS202316 pp.6568 
NLP, MSS 
20230315 13:00 
Nagasaki 
(Primary: Onsite, Secondary: Online) 
A scenario obtaining periodic solutions from thirdorder autonomous system without equilibrium points Ryuichi Yoshida, Seya Amoh, Tetsushi Ueta (Tokushima Univ.) MSS202268 NLP2022113 
The generation of periodic solutions is one example of a bifurcation in an autonomous system. Usually, periodic solution... [more] 
MSS202268 NLP2022113 pp.3136 
NLP, MSS 
20230315 13:20 
Nagasaki 
(Primary: Onsite, Secondary: Online) 
Global bifurcations in a twolink robot Rikiya Yamaguchi (Tokushima Univ), Daisuke Ito (Gifu Univ), Yuu Miino (Naruto Univ), Tetsushi Ueta (Tokushima Univ) MSS202269 NLP2022114 
A twolink robot is modeled as a fourdimensional autonomous system, and its motion is chaotic.
The global motion of t... [more] 
MSS202269 NLP2022114 pp.3742 
NC, NLP 
20230128 14:00 
Hokkaido 
Future University Hakodate (Primary: Onsite, Secondary: Online) 
Revisit on Computations for Bifurcation Problemsa followup Tetsushi Ueta (Tokushima Univ.) NLP202288 NC202272 
Python is gaining attention as a fundamental programming language for machine learning and data science. This report des... [more] 
NLP202288 NC202272 pp.3641 
CCS, NLP 
20220610 10:15 
Osaka 
(Primary: Onsite, Secondary: Online) 
Multivibrator as Slowfast Dynamics
 Basic Bifurcation Phenomena and Canard Solutions  Seiya Amoh, Tetsushi Ueta (Tokushima Univ.), Hiroshi Kawakami NLP202215 CCS202215 
Slowfast dynamical systems are systems of ordinary differential equations involving different time constants.
Systems ... [more] 
NLP202215 CCS202215 pp.7277 
NLP 
20211217 16:20 
Oita 
J:COM Horuto Hall OITA 
[Invited Talk]
Revisit on Computations for Bifurcation Problems Tetsushi Ueta (Tokushima Univ.) NLP202155 
We are developing a bifurcation analysis tool written by Python. In this computer language, reliable functions which hav... [more] 
NLP202155 p.56 
NLP 
20190923 09:50 
Kochi 
Eikokuji Campus, University of Kochi 
Numerical calculation of unstable periodic points in the logistic map based on the symbolic dynamics Yuu Miino (Tokyo Univ. of Tech.), Tetsushi Ueta (Tokushima Univ.) NLP201936 
In this study, we propose a numerical method to calculate unstable periodic points in the chaos of the logistic map. The... [more] 
NLP201936 pp.1114 
NLP 
20190924 13:45 
Kochi 
Eikokuji Campus, University of Kochi 
Recognition of a horseshoe map and its controlling chaos Shohei Miyazaki, Tetsushi Ueta (Tokushima Univ.), Yuu Miino (TUT), Hiroshi Kawakami (Tokushima Univ.) NLP201958 
[more] 
NLP201958 pp.117122 
PRMU, CNR 
20190228 14:15 
Tokushima 

Local Zoo Guide Application using Image Recognition Rabarison Misamanana Felicia, Kohei Kawanaka, Hiroki Tanioka, Tetsushi Ueta (Tokushima Univ.) PRMU2018118 CNR201841 
Most of the information for guide in the Tokushima zoo is in Japanese. However, it is difficult to understand Japanese g... [more] 
PRMU2018118 CNR201841 pp.2126 
NLP 
20180808 13:45 
Kagawa 
Saiwaicho Campus, Kagawa Univ. 
Bifurcations in the ship capsizing problem Yuu Miino, Tetsushi Ueta, Hiroshi Kawakami (Tokushima Univ.), Atsuo Maki, Naoya Umeda (Osaka Univ.) NLP201855 
In the field of ship stability, the softening Duffing equation is used for the ship capsizing problem. However, most of ... [more] 
NLP201855 pp.1519 
NLP 
20180809 12:00 
Kagawa 
Saiwaicho Campus, Kagawa Univ. 
Positional relationship between homoclinic points and unstable periodic points of the horseshoe map in Henon map Shohei Miyazaki, Yuu Miino, Tetsushi Ueta, Hiroshi Kawakami (Tokushima Univ.) NLP201870 
A researcher had suggested the method to obtain the unstable periodic point (UPP) embedded in the horseshoe map by using... [more] 
NLP201870 pp.9196 
IA, SITE, IPSJIOT [detail] 
20180305 11:20 
Tochigi 
Kinugawa Onsen Hotel 
A Design and an Implementation about PasswordFree Operation of Authenticator Registration in FIDO Takahiro Oriishi, Kenji Ohira, Michitomo Morii, Hiroki Tanioka, Masahiko Sano, Kenji Matsuura, Tetsushi Ueta (Tokushima Univ.) SITE201763 IA201774 
As a new authentication framework, FIDO (Fast IDentity Online) is proposed to supersede passwordbased authentication. I... [more] 
SITE201763 IA201774 pp.6772 
IA, SITE, IPSJIOT [detail] 
20180305 11:45 
Tochigi 
Kinugawa Onsen Hotel 
Proposal of Risk Inspection Tool of Third Party Application for Smart Devices Takuma Horiuchi, Ohira Kenji, Hiroki Tanioka, Masahiko Sano, Kenji Matsuura, Tetsushi Ueta (Tokushima Univ.) SITE201764 IA201775 
It is reported that some third party applications for smart devices abusively acquire serviceinternal information and p... [more] 
SITE201764 IA201775 pp.7378 
NLP 
20170512 09:30 
Okayama 
Okayama University of Science 
Bifurcation of a homoclinic point in a simple piecewise linear dynamical system Yuu Miino, Tetsushi Ueta, Hiroshi Kawakami (Tokushima Univ.) NLP201715 
In a certain case, a piecewise linear dynamical system shows rich nonlinear phenomena. In this study, we discuss the hom... [more] 
NLP201715 pp.7376 
NLP 
20160914 14:30 
Hyogo 
Konan Univ. 
Nonlinear phenomena observed in the piecewise hysteresis Duffing equation Yuu Miino, Tetsushi Ueta, Hiroshi Kawakami (Tokushima Univ.) NLP201650 
Hysteresis property can be modeled as a piecewise linear function with the hybrid system approach. In this study, we mod... [more] 
NLP201650 pp.3136 
NLP 
20160527 09:00 
Kochi 
Kochi Univ. 
Synchronization mechanism of opticalcoupled oscillators Kyosuke Miyamoto, Tetsushi Ueta (Tokushima Univ.), Hiroshi Kawakami (Professor Emeritus, Tokushima Univ.) NLP201610 
Selforganized and mutual emphasized periodic behavior of creatures is often observed in nature. This is called a synchr... [more] 
NLP201610 pp.4550 
NLP 
20160527 09:25 
Kochi 
Kochi Univ. 
Synchronized firing phenomena and bifurcation in coupled Izhikevich neuron model Yuu Miino, Tetsushi Ueta (Tokushima Univ.) NLP201611 
In a coupled Izhikevich neuron model, there are some parameter regions where each neuron arises firing at the same time;... [more] 
NLP201611 pp.5156 
NLP 
20160527 11:45 
Kochi 
Kochi Univ. 
Controlling ON/OFFTime in CurrentControlled DC/DC Converter Hiroyuki Fukue (Okayama Univ. of Science), Takuji Kousaka (Oita Univ.), Tetsushi Ueta (Tokushima Univ.), Daisuke Ito (The Univ. of Shiga Prefecture), Hirokazu Ohtagaki, Koh Utsunomiya, Hiroyuki Asahara (Okayama Univ. of Science) NLP201616 
[more] 
NLP201616 pp.7781 