Recently, atmospheric aerosols such as PM2.5 are of serious concern for human health. Physical and chemical properties of aerosols are important as they provide metrics for their adverse health effects. Here I would like to introduce recent concept to elucidate these parameters using aerosol engineering techniques such as virtual impactor and cyclone system.

By combining computers and embedded sensors through the network in our daily life, it is possible to make a new media experience which provides harmonious collaboration between users and computers. In this talk, we will introduce a future lifestyle vision using interactive media technology based on ubiquitous optical sensing.

Nanocarbon materials, such as carbon nanotubes and graphene, are promising candidates for novel optoelectronic devices. This lecture introduces (i) high-speed light emitters on silicon chips and (ii) single photon sources at room temperature and telecommunication wavelength for quantum cryptography, based on nanocarbon materials.

Gas bubbles can be nucleated in liquids and viscoelastic materials under ultrasound irradiation, as in carbonated beverages. The acoustic energy is effectively converted, through volumetric oscillation of the nucleated bubbles, into mechanical energy. In this seminar, cleaning and food processing based on the dynamics of acoustic bubbles are presented.