presentation list

International conference

• Jun/14/2013 (Kyoto)
  

  FSPIP 2013
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita, Hidetoshi Sugihara, Macoto Kikuchi, Tomoaki Nogawa & Munetaka Sasaki
  Title:Network Analysis of Protein Folding Kinetics Based on Monte Carlo Method
  Abstract:We calculate the Malkov state model on the folding energy landscape of a protein by using monte carlo method. We find that a crossover of a network structure from a single hub to a separated ones.
  Presentation viewgraph: TBA
  Language: English
  

• Jan/24/2013 (Kanagawa)
  

  2nd ISIDP International Symposium
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita and Makoto kikuchi
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: English
  

• Oct/14-18/2012 (Kobe)
  

  CCP 2012
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita and Makoto kikuchi
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: English
  

• Oct/4/2012 (Nara)
  

  ICAUMS 2012
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Munetaka Sasaki and Tsuyoshi Chawanya
  Title:Ac Driven Chaos Motion of Domain Wall Spin-Torque Oscillator
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: English
  

Domestic conference

• Nov/23/2013 (Osaka)
  

  The 6th Annual meeting of Japanese Society for Quantitative Biology
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita, Hidetoshi Sugihara, Macoto Kikuchi, Tomoaki Nogawa & Munetaka Sasaki
  Title:Survey of the folding energy landscape from the protein structure information.
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Oct/28/2013 (Kyoto)
  

  The 51st Annual Meeting of the BSJ
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita, Hidetoshi Sugihara, Macoto Kikuchi, Tomoaki Nogawa & Munetaka Sasaki
  Title:Dynamical Property due to Frustration Induced Intrinsic Disorder of NRSF/REST
  Abstract:To gain the insight into the coupled folding and binding of NRSF/REST, we construct the energy Malkov state model of the phenomena. We will report the results.
  Presentation viewgraph: TBA
  Language: English

• Sep/28/2013 (Tokushima)
  

  Autumn meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita, Hidetoshi Sugihara, Macoto Kikuchi, Tomoaki Nogawa & Munetaka Sasaki
  Title:Sampling of Protein folding path using Wang-Landau Algorism
  Abstract:To construct the energy Malkov state model as the energy landscape of protein folding, we applied the Wang-Landau method and WSME model of a simple protein. We show that the transition of network emerge at the folding temperature.
  Presentation viewgraph: TBA
  Language: Japanese

• Sep/25/2013 (Tokushima)
  

  Autumn meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita, Munetaka Sasaki & Tsuyoshi Chawanya
  Title:Resonance-driven oscillation of Domain-Wall Spin-Torque Oscillator under dc: Swing Casting mechanism
  Abstract:We theoretically design a degression method for the threshold current of the domain wall breathing using resonant mode. We theoretically show that the threshold current is degressed down to 1/4 of the original threshold current.
  Presentation viewgraph: TBA
  Language: Japanese

• Mar/29/2013 (Hiroshima)
  

  68th Annual meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita & Macoto Kikuchi
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Mar/14/2013 (Okinawa)
  

  New Development in Statistical Physics 2013
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita & Macoto Kikuchi
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Nov/16/2012 (Sendai)
  

  YSM-SPIP 2012 in Sendai
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita & Macoto Kikuchi
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: English

• Sep/22/2012 (Nagoya)
  

  BSJ 50th Annual Meeting
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title:TBA
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: English
  

• Sep/21/2012 (Yokohama)
  

  Autumn Meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Munetaka Sasaki and Tsuyoshi Chawanya
  Title:Ac Driven Chaos motion of confined domain wall
  Abstract:We report our reseach for ac driven non-harmonic breathing modes of domain wall. We showed that the non-harmonic brething mode depends on amplitude of ac and frequently exhibits a chaos motion.
  Presentation viewgraph: TBA
  Language: Japanese
  

• Sep/18/2012 (Yokohama)
  

  Autumn Meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Aug/1/2012 (Kyoto)
  

  Physics of Non-Equilibrium Systems
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Munetaka Sasaki, Tsuyoshi Chawanya
  Title: Chaos motion of AC Driven Confined Domain Wall
  Abstract:We investigated non-harmonic breathing modes of domain wall excited by ac. We numerically showed that the non-harmonic brething mode is a chaos motion. In a We also showed that the collective equation of motion for the domain wall is reducibe to the forced damped pendulam, which is well known to exhibit a chaos motion.
  Reference
  K. Matsushita et al. Journal of the Physical Society of Japan 81 (2012) 063801
  Presentation viewgraph: 1P10matsushita.pdf
  Language: Japanese
  

• May/30/2012 (Hokkaido, Kita-Hiroshima)
  

  3nd Meeting of New Academic field IDP
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Mar/27/2011 (Osaka)
  

  Annual meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Mar/22/2011 (Kyoto)
  

  YSM-SPIP 2012
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Sep/23/2011 (Toyama)
  

  Annual meeting of Physical Society Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Sep/18/2011 (Himeji)
  

  Annual meeting of the Biophysical Society of Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: English
  

• Jun/29/2011 (Miyazaki)
  

  2nd Meeting of New Academic field IDP
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Mar/26/2011 (Univ. Nigata Igarashi campus)
  

  66th Annual Meeting of the Physical Society of Japan
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  No. :26pPSB-41
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  Note: '''Because of the east Japan earthquake, the presentation on site is canceled, but on the meeting proceedings is held'''

• Mar/24/2011 (Osaka Univ., Toyonaka campus, TBA)
  

  YCM-IPSP 2011 in Kansai
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita、Macoto Kikuchi
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese

Invited Seminor/Laboratory seminor(Machikaneyama or Kikuchi Lab)

• Oct/9/2013 (ESS, Osaka Univ)
  

  Kawamura Lab Seminor
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title:TBA
  Abstract: TBA
  

• Aug/8/2013 (Kobe AICS, RIKEN)
  

  Todo Lab Seminor
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title:Large deviation analysis of Dynamical transitions
  Abstract: TBA
  

• Mar/6/2013 (Front. Biosci., Osaka Univ)
  

  Fujimoto Lab Seminor
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title:TBA
  Abstract: TBA
  

• Nov/20/2012 (CMC, Osaka Univ)
  

  Odanaka Lab Seminor
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title:Application of theoretical calculation to magnetic device design
  Abstract: We summarize recent progress of magnetic devices and application of the mathematical and physical methods for their design. We also review background of our project on the reading head development using domain wall spin valve and our results on the project. We discuss future perspective in the theoretical design of the magnetic devices.
  

  References
  

  [1] Katsuyoshi Matsushita, Jun Sato, and Hiroshi Imamura, Journal of the Physical Society of Japan 78, (2009) 093801
  [2] Katsuyoshi Matsushita, Jun Sato, and Hiroshi Imamura, IEEE Transactions on Magnetics 45, (2009) 3422-2425
  [3] Katsuyoshi Matsushita, Journal of Magnetics Society of Japan 33, pp.274-279, (2009)
  [4] Katsuyoshi Matsushita, Jun Sato, and Hiroshi Imamura, Journal of Applied Physics 105, 07D525 (2009)
  [5] Jun Sato, Katsuyoshi Matsushita, and Hiroshi Imamura, Journal of Applied Physics 105, 07D101 (2009)
  Presentation viewgraph: TBA
  Language: Japanese
  

• Oct/30/2012 (Shizuoka, Gotenba)
  

  Calculation section meeting of New Academic field IDP
  Speaker:Katsuyoshi Matsushita
  Author:Katsuyoshi Matsushita
  Title: TBA
  Abstract:
  Presentation viewgraph: TBA
  Language: Japanese
  

• Jun/18/2012 13:00 (Toyonaka, Cybermedia Center 7F, Osaka. Univ.)
  

  Kikuchi Lab seminar
  Speaker: Katsuyoshi Matsushita (Kikuchi group, CMC, Osaka univ.)
  Title : Our studies on Intrinsic disorder of protein
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Oct/12/2011 13:30 (Toyonaka, F524, Gard. Sch. Sci., Osaka. Univ.)
  

  Kawamura Lab seminar
  Speaker: Katsuyoshi Matsushita (Kikuchi group, CMC, Osaka univ.)
  Title : Protein physics as a condensed matter physics and intrinsic disorder
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Feb/03/2011 13:00 (Toyonaka, Syber Media Center, Osaka univ.)
  

  Machikaneyama seminar
  Speaker: Katsuyoshi Matsushita (Kikuchi group, CMC, Osaka univ.)
  Title : My Study of Intrinsically Disordered Protein in the Last Year(天然変性タンパク質と去年の私)
  Abstract:We will summarize our study in the last year by using Multi-canonical simulation, Monte Carlo simulation on analytic and coarse grained models. Our hypothesis to explain the nature of intrinsic disorder is introduced and then the reproductions of the hypothesis on the models are discussed.
  Presentation viewgraph: TBA
  Language: Japanese (slides are written in English)

• Jan/14/2011 13:00 (IPR, Osaka univ.)
  

  OLABB seminar
  Speaker: Katsuyoshi Matsushita (Kikuchi group, CMC, Osaka univ.)
  Title : 天然変性タンパク質の粗視化模型のWang-Landau法による解析
  Abstract:TBA
  Presentation viewgraph: TBA
  Language: Japanese

• Dec/13/2010 13:00 (H601 School of Science, Osaka univ.)
  

  Akai Lab seminar
  Speaker: Katsuyoshi Matsushita (Kikuchi group, CMC, Osaka univ.)
  Title : Current-induced effects in magnetic nano-contact
  Abstract:
  The current-confined-path structure is a powerful candidate of a GMR element of HDD because of its high MR. The current-confined-path structure consists of magnetic nano-contact in a thin insulator layer sandwiched between two magnetic layers. Under dc, in the magnetic nano-contact, motion of magnetization is driven and induces voltage noise signal with a certain characteristic microwave frequency. Interestingly, the noise has high Q-value and thereby is applicable to a microwave source for the wireless telecommunication.

  For the application of the current confined path structure to the GMR element or microwave source, the control of the noise is important. We theoretically have investigated the mechanism of the noise and discussed the noise control method[1-3]. In this seminar, we introduce the investigations and future perspective of related topics.

  References
  

  [1] K. M. et al., Journal of the Physical Society of Japan 79 (2010) 093801
  [2] K. M. et al., Journal of the Physical Society of Japan 79 (2010) 033706
  [3] K. M. et al., Journal of the Physical Society of Japan 78 (2009) 093801
  Presentation viewgraph: TBA
  Language: English