Akira Nakajima

TL;DR: Electron paramagnetic resonance spectra confirmed the presence of oxygen vacancy, which extended the photon-absorbance deeply into the visible-light region, andective TiO(2-x) exhibited remarkable photocatalytic activity.

TL;DR: A review of recent studies investigating the design of hydrophobic surfaces for liquid droplet control, specifically focussing on recent studies of dynamic hydrophobicity is presented in this paper.

TL;DR: In this article, the extruded porous alumina ceramics with 39% porosity were compared with those of the conventional porous aluminin-ceramics, and their gas permeability and mechanical properties were investigated.

TL;DR: A high-speed camera system with particle image velocimetry was used to observe the internal fluidity of water droplets during sliding and found that on the superhydrophobic surface, the droplet fell at high velocity by slipping, but on a normal hydrophobicsurface, both slipping and rolling controlled the droplets' velocity during sliding.

TL;DR: A series of geopolymers were prepared with varying ratios of sodium silicate, metakaolinite, NaOH and H 2 O and their porous properties, water retention and mechanical properties were determined, to develop materials for counteracting heat island effects as discussed by the authors.