Researchers

NAKAJIMA Hiroyuki

NAKAJIMA Hiroyuki: Professor

Faculty	Department of Electronic Engineering and Computer Science / Graduate School of System Engineering
Researchmap	https://researchmap.jp/NakajimaHiroyuki

Education and Career

Education

- 1984 , Kyoto University, Faculty of Engineering,
- 1984 , Kyoto University, Faculty of Engineering,
- 1986 , Kyoto University, Graduate School, Division of Engineering,
- 1986 , Kyoto University, 工学研究科,

Academic & Professional Experience

Apr. 2005 - Today , Kindai University Faculty of Engineering 教授
Apr. 1999 - Mar. 2005 , Kindai University Faculty of Engineering 助教授
1996 - 1999 , Kindai University
1996 - 1999 , Kinki University, Assistant Professor
1990 - 1996 , 京都大学助手
1990 - 1996 , Kyoto University, Research Assistant
1986 - 1990 , 日立製作所システム開発研究所所員
1986 - 1990 , Hitachi Limited, Systems Development Laboratory, Researcher

Research Activities

Research Areas

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Control and systems engineering

Research Interests

ニュ-ラルネットワ-ク, カオス動力学, neural network., Chaos dynamics

Published Papers

Increase or decrease of the second eigenvalue of Laplacian matrices caused by adding an edge to directed graphs
Hiroyuki Nakajima; Yuki Honda
日本応用数理学会論文誌 33 (4) , 110-131, Dec. 2023 , Refereed
Stability analysis for non-weakly reversible single linkage class chemical reaction networks with distributed time delays
Hirokazu Komatsu; Hiroyuki Nakajima
IFAC World Congress 2023 Jul. 2023 , Refereed
Stability analysis for non-weakly reversible single linkage class chemical reaction networks with arbitrary time delays
Hirokazu Komatsu; Hiroyuki Nakajima
Proc. 59the IEEE Conference on Decision and Control , 1969-1974, Dec. 2020 , Refereed

Eigenvalues of Laplacian matrices for directed path graphs nodes of which are replaced with complete graphs of various orders , Motoki Sato; Hiroyuki Nakajima , 2023年度（第74回）電気・情報関連学会中国支部連合大会 , 28, Oct. 2023
Characteristic roots for differential-difference equations that describe consensus control with communication delays , Toshio Mizuyachi Hiroyuki Nakajima , 2023年度（第74回）電気・情報関連学会中国支部連合大会 , 28, Oct. 2023
Platoon control based on leader-follower consensus using time delays , Junichi Okada; Hiroyuki Nakajima , 2023年度（第74回）電気・情報関連学会中国支部連合大会 , 28, Oct. 2023

Knowledge base. The Institute of Electronics, Information and Communication Engineers , 中島弘之 , Sep. 2010
A packet routing method using a neural network with stochastic effects , KIMURA Takayuki; KOSAKO Junichi; SHIGETA Akihiro; NAKAJIMA Hiroyuki , IEICE technical report. Nonlinear problems , 104 , 112 , 5 , 10 , 10, Jun. 2004
Summary:We found by some computer experiments that the method of packet routing control using a neural network ,which was proposed by Horiguchi and Ishioka [1], was not so effective when it was applied to computer networks with some kinds of topology. In the present report, to overcome this problem, we propose a modified method of the packet routing control with stochastic effects and confirm its effectiveness by some computer simulations.
Delayed feedback control with state predictor for continuous-time chaotic systems , H Nakajima , INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS , 12 , 5 , 1067 , 1077 , May. 2002
Summary:We propose an application of state predictor to delayed feedback control (DFC) for continuous time dynamical systems. First, we define the DFC for continuous-time systems clearly. Next, on the basis of this definition, we propose a DFC method with state-predictor to stabilize unstable equilibrium points in autonomous systems and derive a sufficient condition for stabilization. Then we extend this method to stabilizing unstable periodic orbits and also derive a sufficient condition for stabilization. Finally, we briefly discuss the relation between the conditions for stabilization of our methods and those of the dynamic DFC and the prediction-based feedback control for discrete-time systems.