Category Physics

Their ultrathin, conductive, and transparent hybrid NMs can be applied to the fabrication of skin-attachable NM loudspeakers and voice-recognition microphones, which would be unobtrusive in appearance due to their excellent transparency and conformal contact capability.
Credit: UNIST

An international team, affiliated with UNIST has presented an innovative wearable technology that will turn your skin into a loudspeaker. This breakthrough has been led by Professor Hyunhyub Ko in the School of Energy and Chemical Engineering at UNIST. Created in part to help the hearing and speech impaired, the new technology can be further explored for various potential applications, such as wearable IoT sensors and conformal health care devices.

In the study, the research team has developed ultrathin, transp...

In this artist’s conception of the Nebraska experiment, the white orbs represent two laser pulses, with plasma waves in their wakes. The waves interfere with one another after the laser pulses cross, and electrons ride the wakefield waves to higher energy.
Credit: Extreme Light Laboratory, University of Nebraska-Lincoln

Force of light boosts electrons close to speed of light. In a recent experiment at the University of Nebraska-Lincoln, plasma electrons in the paths of intense laser light pulses were almost instantly accelerated close to the speed of light.

Physics professor Donald Umstadter, who led the research, said the new application might aptly be called an “optical rocket” because of the tremendous amount of force that light exerted in the experiment...

Diagram of a six-stage cooling cycle for magnetic shape-memory alloys developed by researchers at the TU Darmstadt and the HZDR. Illustration: Alexey Karpenkov

A novel technology could provide a solution for cooling processes: refrigeration using magnetic materials in magnetic fields. Researchers have developed the idea of a cooling cycle based on the ‘magnetic memory’ of special alloys.

As a result of climate change, population growth, and rising expectations regarding quality of life, energy requirements for cooling processes are growing much faster worldwide than for heating. Another problem that besets today’s refrigeration systems is that most coolants cause environmental and health damage...

This schematic of a neural network shows the assignment of rotational spectra (red bars at left) by an algorithm (center) to identify the structure of a molecule in the gas phase (right). (Image by Argonne National Laboratory.)

Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have begun to use neural networks to identify the structural signatures of molecular gases, potentially providing new and more accurate sensing techniques for researchers, the defense industry and drug manufacturers.

This breakthrough work has been recognized as a finalist for a 2018 R&D 100 award. R&D 100 awards, called the “Oscars of Innovation,” are given out by R&D Magazine to the most significant innovations developed in a given year.

Neural networks – so named because they operate ...