Technology News丨FAST has discovered 509 pulsars; TEPCO officially submits application for nuclear wastewater discharge into the sea

Today's cover

In winter, the snow around Qinghai Lake covers the azure blue surface of the lake, and the lake surface, which is constantly freezing, looks like a mirror. Photo by Li Jiangning, a reporter from China News Service

News Station

A panoramic view of the "China Sky Eye" taken on the 19th (taken during maintenance, drone photo). Image source: Xinhua News Agency

●On the 20th, the 2021 FAST Operation and Development Center's annual summary meeting was held at the China Sky Eye (FAST) Observation Base in Pingtang County, Guizhou Province. It is understood that FAST has discovered 509 pulsars, which is more than four times the total number of pulsars discovered by all other telescopes in the world. (Source: Xinhua News Agency)

Image source: Dongguan Municipal People's Government official website

●On the 21st, Dongguan, Guangdong held the 8th press conference to report the latest progress in the handling of the epidemic. According to the results of gene sequencing, the virus infected in this round of Dongguan is the Delta variant, the most prevalent variant of the novel coronavirus in the world. The gene sequencing of the cases in Xi'an, Shaanxi is highly homologous, and they are the same transmission chain from the same imported source. (Source: CCTV News Client)

Pure Technology

Image courtesy of USTC

●Recently, a joint team led by Professor Xu Zhengyuan of the University of Science and Technology of China published the research results of "Petahertz Communication: Spectral Fusion for Wireless Communication" in the international academic journal "Digital Communications and Networks (English)", which provides new ideas for the sixth generation (6G) mobile communications. This study proposed a new system framework for petahertz communication for the first time, breaking through the spectrum segmentation method of traditional naked eye vision, organically integrating infrared light, visible light and ultraviolet light multi-segment spectrum, and realizing the effective development and utilization of the full petahertz frequency band. (Source: Science and Technology Daily)

●Recently, a research team led by Professor Huang Bo and Professor Qin Chuan from the Institute of Basic Medicine, Chinese Academy of Medical Sciences, found that the Delta variant can break through the defense mechanism of anti-inflammatory alveolar macrophages, increase the number of amino groups, complete the protonation of spike proteins in a relatively high pH environment, and activate cathepsins. Cathepsins cut the viral spike proteins, causing the membranes of the viral particles and the membranes of the endosomes to split at the contact site, allowing the viral RNA to be released into the cytoplasm, thereby achieving rapid viral transmission. The relevant research results were published online in the international academic journal Signal Transduction and Targeted Therapy. (Source: Science and Technology Daily)

New findings

●Recently, Igor Mitrofanov, director of the Nuclear Planetology Laboratory of the Space Research Institute of the Russian Academy of Sciences, told the media that Russian researchers have discovered an area on Mars with pure ice water deposits. This discovery was made after analyzing the data of the Russian Spectral Compass and the High-Resolution Super-Energy Neutron Detector on the Russian European Orbiter Trace Gas Detector. The relevant research results were published in the scientific journal "Ikaros". (Source: Science and Technology Daily)

Qujing Truffle. Photo courtesy of Kunming Institute of Botany, Chinese Academy of Sciences

●Recently, a research team from the Kunming Institute of Botany, Chinese Academy of Sciences, discovered two new species of white truffles in Yunnan: Truffle Truffle and Qujing Truffle. Both have certain edible and economic value. The relevant results were published in the international journal Phytotaxa in the field of classification. (Source: China News Network)

See the world

On the 11th, the Webb Space Telescope was placed on top of the Ariane 5 rocket. Image source: Physicists Organization Network

●Recently, Bill Nelson, the director of the National Aeronautics and Space Administration (NASA), confirmed that the James Webb Space Telescope will be launched on December 24 by an Ariane 5 rocket from the European Spaceport in French Guiana. (Source: Science and Technology Daily)

Japan's Fukushima Nuclear Power Plant (data map). Image source: Overseas Network

●According to Japan's NHK News Network, on the 21st local time, Tokyo Electric Power Company of Japan officially submitted an application to the Atomic Energy Regulation Commission for the "Implementation Plan for Discharging Nuclear Wastewater from the Fukushima Nuclear Power Plant into the Sea". The nuclear wastewater is expected to be discharged into the sea 1 km away from the Fukushima Nuclear Power Plant from the spring of 2023. (Source: Overseas Network)

Editor: Zhang Qiqi

Review: Yue Liang

Final review: Liu Haiying

Source: Science and Technology Daily