China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the world's largest single-dish radio telescope, has identified more than 900 new pulsars since its launch in 2016. The telescope provides astronomers around the globe with a powerful tool to uncover the mysteries and evolution of the universe, said Jiang Peng, chief engineer of the FAST. One of the important implications of the research on pulsars is to provide cosmic coordinates for possible future interstellar travel.
In a hospital in Wuwei, northwest China's Gansu Province, a medical facility consisting of large pieces of steel and complex coils occupies a building of 30 meters high. The high-speed carbon ions produced by it are channeled into the treatment room to kill the tumor cells of cancer patients. The advanced medical facility, called heavy-ion accelerator, is assisting human's fight against cancers. However, due to its large size, high production and maintenance costs, it has not been widely used in ordinary hospitals.
A Chinese research team has introduced a novel method for a comprehensive analysis of the behaviors of active fast radio bursts (FRBs) in the time-energy domain and revealed the randomness of the behaviors. The study reveals that the FRBs' behaviors in the time-energy domain are fundamentally different from those of common transient physical phenomena such as earthquakes and solar flares, and exhibit a high degree of randomness like a Brownian motion, shedding new light on the origin of FRBs.
In a study recently published in the journal Science, a team of researchers led by Huang Yuanyuan from the Institute of Geographic Sciences and Natural Resources Research of the Chinese Academy of Sciences (CAS) and Zhang Ganlin from the Institute of Soil Science of the CAS, have quantified the global store of SIC, challenging the long-held view.
Chinese scientists have constructed a database of nutrient concentrations in Chinese lake sediments, which reveals their historical changes and can be used to predict water quality and environmental conditions in various lake areas.
China's self-developed actuators have been applied to the country's Five-hundred-meter Aperture Spherical Radio Telescope (FAST) and have been running smoothly for months without any faults. The new actuators now meet the operational requirements of the FAST project following their optimization. Next, the project team will further enhance their performance -- with focus on intelligent fault diagnosis.
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