แปรงสามารถที่จะเคลื่อนที่บนพื้นสั่นได้นั่น จะต้องอาศัย
Community variations in population exposure
to near-field tsunami hazards as a function of pedestrian
travel time to safety
Nathan J. Wood • Mathew C. Schmidtlein
Molecular theory investigate the switching of mixed
brushes
Xin-Jun Zhaoa,∗and Guo-Liang Zhang b
a Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter
Physics, Yili Normal University, Yining 835000, China
b School of Electronics and Information, Yi Li Normal University, Yining 835000,
China
Received 2 August 2013; Accepted (in revised version) 11 November 2013
Published Online 28 February 2014
Abstract. We performed a molecular theory to study the switching mechanism of
mixed brushes. For mixed brushes, because of the different solvent selectivity, one
species forms the poor solvent layers, whereas another species creates the upper, good
solvent layer. The structural properties of the mixed brushes were analyzed in detail
for various solvent responds. The thermodynamic properties of the mixed brushes,
such as the lateral pressure-area isotherms and chemical potentials, are studied as a
function of surface coverage. The possibility of perpendicular segregation in mixed
brushes is explained. The presented results allow us to quantify the responsive features
of mixed brushes and provide guidance for the design of m