Category Technology/Electronics

A novel technology for cooperative analysis of big data. Researchers have used ‘swarm learning’ – a novel, artificial intelligence technology – to detect blood cancer, lung diseases and COVID-19 in data stored in a decentralized fashion.

Communities benefit from sharing knowledge and experience among their members. This approach has advantage over conventional methods since it inherently provides privacy preservation technologies, which facilitates cross-site analysis of scientific data. Swarm learning could thus significantly promote and accelerate collaboration and information exchange in research, especially in the field of medicine...

Researchers recently developed an innovative technique to capture the unused solar energy that illuminates a solar panel. They created special holograms that can be easily inserted into the solar panel package. This method can increase the amount of solar energy converted by the solar panel over the course of a year by about five percent.

The energy available from sunlight is 10,000 times more than what is needed to supply the world’s energy demands. Sunlight has two main properties that are useful in the design of renewable energy systems. The first is the amount power falling on a fixed area, like the ground or a person’s roof...

Thermoelectric (TE) conversion offers a carbon-free power generation from geothermal, waste, body or solar heat, and shows promise to be the next-generation energy conversion technology. At the core of such TE conversion, there lies an all solid-state thermoelectric device which enables energy conversion without the emission of noise, vibrations, or pollutants. To this, a POSTECH research team proposed a way to design the next-generation thermoelectric device that exhibits remarkably simple manufacturing process and structure compared to the conventional ones, while displaying improved energy conversion efficiency using the spin Seebeck effect (SSE).

A POSTECH joint research team — led by Professor Hyungyu Jin and Ph.D...

Researchers demonstrate long delays and narrow filtering of microwave signals in silicon-photonic circuits, based on surface acoustic waves. High-end wireless and cellular networks rely on light for the distribution of signals. The selective processing of such signals requires long delays: too long to support on a chip using light alone. A research team brought together light and ultrasonic waves to realize ultra-narrow filters of microwave signals, in silicon integrated circuits. The concept allows large freedom for filters design.

The continued growth of wireless and cellular data traffic relies heavily on light waves. Microwave photonics is the field of technology that is dedicated to the distribution and processing of electrical information signals using optical means...