Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Toshio YOSHIKAWA"'
Publikováno v:
e-Journal of Surface Science and Nanotechnology. 13:69-74
Investigation for the operation mechanism in writing and reading processes are necessary in order to realize practical 3D devices with azo-carbazole dyes which are promising candidates for real-time 3D displays. We made dynamical studies of four-wave
Autor:
Toshio Yoshikawa, Alexander M. Balk
Publikováno v:
Physica D: Nonlinear Phenomena. 238:384-394
It was found out in 1991 that the Fourier space dynamics of Rossby waves possesses an extra positive-definite quadratic invariant , in addition to the energy and enstrophy. This invariant is similar to the adiabatic invariants in the theory of dynami
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 16:1705-1716
A new type of a phenolic self-crosslinking resin was prepared by the oxidation of the hydroquinone–phenol formaldehyde resins with chloric acid. The chemical behaviors of the resin in the process of self-curing occurred by heating were followed by
Autor:
Toshio Yoshikawa, Masuki Kawamoto, Yutaka Kawabe, Kazuhiro Tada, Toshifumi Chida, Takafumi Sassa, Takashi Fujihara, Naoto Tsutsumi
Publikováno v:
SPIE Proceedings.
In order to analyze the spectra of inseparable chemical mixtures, many mathematical methods have been developed to decompose them into the components relevant to species from series of spectral data obtained under different conditions. We formulated
Autor:
Toshio Yoshikawa
Publikováno v:
Physics Letters A. 354:145-150
A one-dimensional system of three particles connected by nonlinear springs with an exponential restoring force and linear dashpots is studied. With the aid of the canonical variables for the Toda lattice, averaged equations are derived for describing
Publikováno v:
Applied Catalysis B: Environmental. 51:247-254
Two series of samples were prepared from titanium tetraisopropoxide (TTIP) through hydrolysis with different aging times, 10 min and 24 h, at room temperature and then annealed at different temperatures. Photocatalytic activities of these samples for
Autor:
Toshio Yoshikawa, Keiichiro Kimura, Yasuyuki Ishida, Hajime Ohtani, Hideki Matsubara, Yoshihiko Taguchi, Shin Tsuge
Publikováno v:
Polymer Degradation and Stability. 83:221-227
The structural changes of a polymeric hindered amine light stabilizer (HALS), Adekastab LA-68LD (MW=1900) added in PP materials during UV-irradiation were investigated by reactive thermal desorption-gas chromatography (RTD-GC) in the presence of tetr
Autor:
Toshio Yoshikawa
Publikováno v:
Physics Letters A. 317:120-126
The dynamical system determined by the Lagrangian, L = 1 2 e A a · q A q · q + e A b · q , is studied. An analytical solution is given in closed form for this system when the total energy is zero. Two kinds of representations are presented for the
Autor:
Hajime Ohtani, Yasuyuki Ishida, Shin Tsuge, Toshio Yoshikawa, Keiichiro Kimura, Yoshihiko Taguchi
Publikováno v:
Journal of Chromatography A. 993:137-142
Highly sensitive and specific determination of trace amounts of a polymeric hindered amine light stabilizer (HALS) in polypropylene (PP) materials could be established by improving reactive thermal desorption-gas chromatography (RTD-GC) in the presen
Autor:
Toshio Yoshikawa
Publikováno v:
Physics Letters A. 307:13-21
A mathematical model is studied numerically for a chain of unstable springs with a non-monotone force function. When the chain contracts slowly, the state of the chain changes abruptly. This change is shown to be a transition from mechanical equilibr