New image forensic tool detects forgery and manipulation   A new image forensic tool that investigates color sensor pattern noise in images and uses Zernike moments of small image demonstrates cutting-edge technology in both color modification and copy-move detection.   Article  |  Fall 2015     Although color modification is a common forgery technique, there has been no rep...

Integrated hetero-nanosensor array for environment monitoring   Low-power and ultra-compact nanosensors for air quality monitoring have been developed by using localized and selective synthesis of nanomaterials   Article  |  Fall 2015     Recently, air pollution problem has become a critical problem worldwide. According to World Health Organization (WHO), 7 million people s...

Smart wearables create Patina Engravings to log performance   The Patina Engraving System is a novel activity log visualizer for smart wearables, such as smart watches or activity trackers that displays data in the form of a permanently engraved patina.   Article  |  Fall 2015     Recently, there has been a proliferation of commercial activity trackers for monitoring physic...

Electricity from hydrogen sulfide, a common waste gas   Hydrogen sulfide (H2S), a waste gas with the advantages of low cost, easy storage and transportation, and high electrochemical activity, can be utilized as a fuel in PEM-based fuel cell system, thereby enabling H2S removal and electricity generation.   Article  |  Fall 2015     Hydrogen sulfide is a toxic, corrosive ga...

Capturing hot electrons created under chemical reactions   Hot electron generation on the surface of nanocatalysts during chemical reactions, which is direct evidence of the electronic effect in heterogeneous catalysis, was successfully observed using the catalytic nanodiodes composed of a metal–semiconductor Schottky nanodiode.   Article  |  Fall 2015     Catalysis i...

Ultra-stretchable elastic-composite energy harvester   A hyper-stretchable elastic-composite energy harvesting device called a nanogenerator has been developed by using a high-performance piezoelectric nanocomposite and very long silver nanowire network electrodes, for biomechanical energy harvesting and sensing.   Article  |  Fall 2015     Flexible electronics have come in...