无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

Chinese scientists complete first SKA regional center prototype

Source: Xinhua| 2019-11-11 18:43:45|Editor: Xiang Bo
Video PlayerClose

BEIJING, Nov. 11 (Xinhua) -- Chinese scientists have developed the first regional center prototype of the Square Kilometre Array (SKA), the world's largest astronomical device.

The prototype, developed by the Shanghai Astronomical Observatory (SHAO) with the support of the Ministry of Science and Technology and the Chinese Academy of Sciences, will help advance the construction and operation of the future SKA regional center, said An Tao, head of the SKA group of the SHAO.

An article introducing the prototype was published in the latest issue of the academic journal Nature Astronomy.

The SKA will be the largest and most advanced radio telescope ever built. It will combine signals received via thousands of small antennae spreading over 3,000 km to simulate a single giant radio telescope with a total collecting area of approximately one square kilometer.

The antennae will be installed in the southern hemisphere with the core stations located in Western Australia and South Africa, offering the best view of the Milky Way and the least radio frequency interference.

The SKA will be able to detect faint radio waves from deep space with its sensitivity about 50 times higher than any other existing radio instrument ever developed.

Scientists will use the super telescope to study the evolution of the universe, understand the nature of gravity, explore the origins of life and the origins of cosmic magnetic fields, as well as search for extraterrestrial civilization. The SKA is expected to make revolutionary breakthroughs in the major frontiers of natural sciences.

It will also produce the largest data flow ever seen in astronomy. Just the first phase of the SKA, accounting for only 10 percent of the full scale, will create data products with a growth rate of one exabyte per year once operational, requiring a computing capacity of at least 300 petaflops, according to An.

The vast volume of the SKA data and diverse locations of science users require a coordinated network of geographically distributed SKA regional centers, said An.

The construction of the SKA is planned to start next year, and China, one of the founding members, is investigating the China regional center scheme, which will offer a platform for multi-disciplinary scientific research, in-depth data processing, long-term storage and advanced technique development, An said.

He said the prototype is designed to provide scientists worldwide with necessary computing resources, high-quality data products and convenient technical support to conduct SKA early science and to understand the data challenges.

The commissioning of the prototype is expected to take place in 2020. The pioneering work and practical operational experience of the prototype will be valuable for improving the design and future large-scale expansion of SKA regional centers, he added.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001385467331
337p粉嫩大胆噜噜噜| 艾小青国产精品40分钟| 亚洲中文字幕一区二区| 日韩无套内射高潮| 亚洲国产中文欧美在线人成大黄瓜| 久久综合色之久久综合色| 中文字幕第55页一区| 亚洲妇女水蜜桃av网网站| 色噜噜噜亚洲男人的天堂| 激情综合亚洲色婷婷五月app| 亚洲精品5555在线| 久久久久成人精品免费播放动漫| 日本高清视频网站www| 与子乱对白在线播放单亲国产 | 亚洲国产一区二区三区久| 欧美一区二区三区欧美日韩亚洲| 欧美不卡视频一区发布| 久久99国产乱子伦精品免费| 国产剧情一区二区| 无码人妻一区二区三区免费视频| 天干天干天啪啪夜爽爽av| 欧美+日韩+精品| 无码国产欧美一区二区三区不卡| 中文有无人妻VS无码人妻激烈| 日本污视频在线观看| 色天天综合网色鬼综合| av在线手机播放| 国产99在线 | 亚洲| 免费观看成年午夜视频| 国产毛片久久久久久国产毛片| 337p粉嫩大胆色噜噜噜| 一级黄色欧美| 久久亚洲精品日韩高清| 福利在线不卡| 亚洲人成人网站色www| 国产亚洲精品日韩香蕉网| 激情偷乱人成视频在线观看| 熟女蜜臀av麻豆一区二区| 中文乱码人妻一区二区三区在线| 欧美激情综合| 欧洲美熟女乱又伦AV影片|