http://w.atwiki.jp/ysk_kwd/ Homepage of Yusuke Kawada ja 2010-12-17T07:53:54+09:00 1292540034 https://w.atwiki.jp/ysk_kwd/pages/21.html &italic(){}&bold(){}&size(18px){'' '''Welcome to''' ''} &size(20px){'' "Homepage of Yusuke Kawada" ''} &size(20px){'' '''!''' ''} &br() &br() &size(15px){Yusuke Kawada is a Japanese geoscientist (post-doc fellow), working in the fields of structural geology, geodynamics and rock rheology. Now he studies a time-scale invariance in viscoelastic behaviour of rocks or crust and in temporal seismicty patterns (involving mechanical, chemical, hydraulic and electromagnetic relaxation phenomena) prior to a large earthquake or a rock failure, using the irreversible thermodynamics and damage mechanics.} &br() &br() &br() *&font(blue){''[Research Interests - Keywords]''} - Rock rheology, Viscoelastic behaviour, Damage mechanics, Seismic attenuation - Time-scale invariance, Critical phenomenon, Complexity science - Irreversible thermodynamics (Prigogine, Biot, Schapery) - Preseismic variation in atmospheric radon concentration, LAI coupling - Seismo-electromagnetic radiation, Seismo- 2010-12-17T07:53:54+09:00 1292540034 https://w.atwiki.jp/ysk_kwd/pages/20.html In his Ph. D, he has studied the viscoelastic behaviour of rocks in terms of the time-scale invariance of local relaxation processes. The constitutive laws of macroscopic behaviours are extrapolated from the experimental and theoretical studies on the dynamics of microstructures, while he established the phenomenological description of mechanical behaviour of rocks from the viewpoint of the scale invariance or complexity. At first, he derived a constitutive law for viscoelastic behaviour including the nonlinear effect due to damage evolutions based on the irreversible thermodynamics. This model was validated for deformation data of a variety of rocks at high temperatures, and he extrapolated a relation based on the relaxation modulus being a temporal power-law. This implies the viscoelastic behaviour of rocks has a time-scale invariance, and we can apply this power-law to the viscoelastic behaviour ranging from the seismic to geological time-scale. This relation is linked to the empiri 2008-02-05T01:03:36+09:00 1202141016 https://w.atwiki.jp/ysk_kwd/pages/19.html |Name|Yusuke Kawada| |Affiliation| Earthquake Research Institute, University of Tokyo, (Tokyo, JAPAN)| |Date of Birth|23 December, 1978| |Place of Birth|Osaka, JAPAN &br()(He grew up in &blanklink(Totsuka){http://www.google.com/maps?hl=en&z=10&q=Totsuka+Station+Yokohama+Japan}, Yokohama, JAPAN)| |Research Experience| [5] &font(i,u){JSPS Research Fellow - PostDocs}&space()(Apr. 2010 - ) '':'' &br() &space(6)Earthquake Research Institute, Univ. Tokyo, JAPAN &br()&font(white){[3]}&font(i,u){Visiting Research Fellow}&space()(Apr., Jul. - Nov. 2010) '':'' &br()&space(6)School of GeoSciences, Univ. Edinburgh, UK &br()[4] &font(i,u){JSPS Postdoctral Fellow for Research Abroad} &br() &font(white){[4]} [ Visiting Research Fellow ] &space() (May 2008 - Mar. 2010) '':'' &br() &space(6)School of GeoSciences, Univ. Edinburgh, UK &br()[3] &font(i,u){JSPS Research Fellow - PostDocs}&space()(Apr. 2007 - Mar. 2008) '':'' &br() &space(6)Dept. Geoenvironmental Sci., Tohoku Univ., JAPAN &br()&font(wh 2012-06-02T18:47:42+09:00 1338630462 https://w.atwiki.jp/ysk_kwd/pages/18.html #anchor(Papers){} *&color(blue){''[Refereed Papers]''} &space(8)[[&color(black){[2004]}>Publications#p2004]], [[&color(black){[2006]}>Publications#p2006]], [[&color(black){[2007]}>Publications#p2007]], [[&color(black){[2008]}>Publications#p2008]], [[&color(black){[2009]}>Publications#p2009]], [[&color(black){[2012]}>Publications#p2012]] #anchor(p2004){} + ''Y. Kawada'' & H. Nagahama (2004) Viscoelastic behaviour and temporal fractal properties of lherzolite and marble: possible extrapolation from experimental results to the geological time-scale. %%%'''Terra Nova'''%%%, ''16'', 128-132.&space(3)[[&color(Orange){[Abstract]}>http://www3.interscience.wiley.com/journal/118791925/abstract]] #anchor(p2006){} + J. Muto, ''Y. Kawada'' & H. Nagahama (2006) Micromorphic continuum with defects and Taylor-Bishop-Hill theory for polycrystals: anisotropic propagation of seismic waves and Golebiewska gauge. In: Teisseyre, R., Takeo, M. & Majewski, E. (eds.) %%%'''Earthquake Source Asymmetry, S 2012-06-02T18:46:05+09:00 1338630365 https://w.atwiki.jp/ysk_kwd/pages/14.html *&color(blue){''[Menu]''} &space(10)[[Home>http://www22.atwiki.jp/ysk_kwd/]] &br() &space(10)[[Research Interests>http://www22.atwiki.jp/ysk_kwd/pages/20.html]] &br() &space(10)[[Publications>http://www22.atwiki.jp/ysk_kwd/pages/18.html]] &br() &space(15) * [[Papers>http://www22.atwiki.jp/ysk_kwd/pages/18.html#Papers]] &br() &space(15) * [[Int. Conf.>http://www22.atwiki.jp/ysk_kwd/pages/18.html#IntConf]] &br() &space(15) * [[Japan Conf.>http://www22.atwiki.jp/ysk_kwd/pages/18.html#JpnConf]] &br() &space(10)[[CV>http://www22.atwiki.jp/ysk_kwd/pages/19.html]] &br() &space(10)[[Contact>http://www22.atwiki.jp/ysk_kwd/#contact]] &br() &br() &space(6) Last update:&space(3)&date() 2012-06-02T18:48:52+09:00 1338630532