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Kikuo Okuyama

Publications and source records attributed to Kikuo Okuyama.

2 recordsLinked to original sources

Heterogeneous Condensation

Vapor condensation on nanoparticle with radius smaller than the Kelvin radius is considered as fluctuation or as the heterogeneous nucleation. The expression for steady-state heterogeneous nucleation rate is obtained. Nucleation on negatively charged nanoparticles is discussed. The report was made at 17th International Nucleation and Atmospheric Conferences, Galway, Ireland, 2007.

cond-mat.stat-mech

A unified model for temperature dependent electrical conduction in polymer electrolytes

The observed temperature dependence of electrical conduction in polymer electrolytes is usually fitted with two separated equations: an Arrhenius equation at low temperatures and Vogel-Tamman-Fulcher (VTF) at high temperatures. We report here a derivation of a single equation to explain the variation of electrical conduction in polymer electrolytes at all temperature ranges. Our single equation is in agreement with the experimental data

cond-mat.mtrl-sci