Recently, the research groups led by Prof. ZHANG Qingli and Prof. JIANG Haihe from Hefei institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) have jointly developed a high-symmetry gradient-doped Nd:YAG laser crystal designed for dual-end pumping configurations. This innovation significantly mitigates thermal effects and enhances laser performance.
In natural ecosystems, soundscapes are made up of animal sounds, environmental noises, and human activity. Because different animals vocalize at different times and frequencies, researchers can study audio recordings to understand local biodiversity. Discriminative machine learning is often used to analyze how biodiversity changes over time and across regions. However, in ecosystems with many species and complex sounds, it is still difficult to accurately identify species and measure biodiversity, which limits the wider use of soundscape analysis in ecological monitoring.
Recently, a research team in the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has revealed that one-time nitrogen (N) application, a labor-saving practice favored by many farmers, increases both soil and canopy ammonia (NH3) emissions in maize fields, while reducing grain yield and nitrogen use efficiency.
Researchers at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, have developed advanced robotic technologies to support the assembly and maintenance of future fusion reactors.
A collaborated research team led by Prof. MA Yanwei from the Institute of Electrical Engineering (IEE) of Chinese Academy of Sciences (CAS), has shattered records in the current-carrying performance of iron-based superconducting wires. Their breakthrough, enabled by a novel strategy to engineer high-density flux pinning centers via an asymmetric stress field, is published in Advanced Materials.