For Beijing 2022 Winter Olympic Games, the Beijing Olympic Organizing Committee takes all kinds of actions to ensure the GREENESS, namely Blue sky and Clean water. The Hefei Institutes of Physical Science is happy to be a part of those efforts. Advanced Monitoring and Detection Instruments with Photoelectric Technology to guarantee SAFE and GREEN of the Olympics
Fe-18 at.%Ga alloys with magnetostrictive coefficients up to 400 ppm are expected to have high damping based on the magneto-mechanical hysteresis damping (MMHD) model. However, in some studies of the magnetostrictive properties of Fe-Ga alloys, it was found that the magnetization curves of Fe-Ga alloys seem to be reversible, linear, and non-hysteretic curves, which indicates the damping is zero for Fe-Ga alloys. This contradiction makes it a challenge to explore the damping mechanism of iron-based high damping alloys and possible ways to increase the damping of the alloys.
The traditional refrigerant represented by Freon is a strong greenhouse gas that leads to serious climate problems. Stimulated by the excellent cooling performance of plastic crystal materials, barocaloric (BC) cooling received much attention recently as a promising green refrigeration technology. However, problems like high driving pressure and low thermal response remain unsolved, which hindered their practical applications.
Today is the Lantern Festival which falls on the first day with a full moon in the first lunar month.
If you want to learn about China, you won’t miss the Spring Festival that is indisputably considered by all the Chinese people the most important traditional festival around the year to celebrate the coming of Chinese New Year.