Backup source of Research(No. 13)

[[FrontPage]]

#contents


** Research Project [#d037edec]
- SIZE(15){COLOR(#333399){Nonlinear Dynamics and Control}}
>is a common research object in Professor Hikihara's labratory.  Our purpose here is twofold:  Analysis and synthesis.  One is to understand how dynamics emerge from nonlinearty of systems.  The other is to establish how to control and synthesize them as engineering applications.  Chaos is a famous nonlinear phenomenon resulting from nonlinearity, which was experimentally found in 1961 by Dr. Yoshisuke Ueda, Emeritus Professor of Electrical Engineering, Kyoto University.  Various nonlinear phenomena are also well known which include regular/subharmonic oscillations, local/global bifurcation, and smooth/fractal basin boudaries.  Not only analysis of nonlinear phenomena and also control of nonlinear phenomena or synthesis of nonlinear systems is also our purpose of research.  Delayed-feedback stabilization of magneto-elastic chaos was experimentally archived by Professor Hikihara [Hikihara and Kawagoshi, Phys. Lett. A. 211, 29 (1996)].  We are currently studying the following topics on nonlinear dynamics and control:  

-- Statistics of chaos;
-- Spatio-temporal dynamics described by infinite-dimensional systems;
-- Dynamics and control of large coupled oscillators;
-- Bifurcation of hybrid dynamical systems; and 
-- Energy and power-based characterization of synchronization.

- SIZE(15){COLOR(#333399){Power Conversion and Processing}}
>is an active research project directed by Professors Funaki and Hikihara.  We are currently studying the following topics:

-- Physical modeling of SiC devices;
-- Application of SiC power devices to power conversion circuits; and
-- Theory and experiments of RF battery system.

- SIZE(15){COLOR(#333399){Nano-Mechanical System}}
>is an avant-garde research direction in Professor Hikihara's laboratory.  We are currently studying the following topics:

-- Application of time-delayed feedback control to atomic force microscopy; 
-- Intrinsic Localized Modes in MEMS devices:  Theory and Application; and 
-- In situ mass separation by MEMS actuator.

- SIZE(15){COLOR(#333399){Power Network}}
>is also a research obeject in nonlinear/hybrid dynamics and control.  Needless to say, power network is a massively huge physical network for energy management system of modern society and is regarded as a safety-critical system, because without electricity we could not have lived a modern life.  Emergence of large cascading blackouts and deregulation of power markets all over the world require a new direction of theory of complex power network.  Analysis and control based on nonlinear/hybrid dynamics are an essential key to the requirement.  We are currently studying the following topics:  

-- Application of hybrid systems theory and control;
-- Non-holonomic mechanics and control of ac/dc composite power networks; 
-- Development of hybrid-type power network simulator; and
-- Coupled swing dynamics and new global instability of power grid.

** Publication List [#xf785dc6]
>You can download some of our archival journal articles below.

- [[2007>PubList2007]]
- [[2006>PubList2006]]
- [[2005>PubList2005]]
- [[2004>PubList2004]]

** [[Ph.D Dissertation List >Ph.DList]] [#x5d39104]

** External Evaluation [#uaf10f69]
-[[By Dr. Ralph Abraham (2005):http://www.ralph-abraham.org/new/fulspec/japan.2005/report/kyoto.html]]
-[[By Dr. Ralph Abraham (2004):http://www.ralph-abraham.org/new/fulspec/japan.2004/report/kyoto.html]]

** Comment [#l3193488]
>We are expecting contacts by potential PDs or PhD students.  Scholarship or funding should be requested at least 2 yrs before coming.
Backup source of Research (No. 13)
