On the morning of May 11,2021,the National Bureau of Statistics(NBS)of China released the results of its seventh national population census.The census statistics present a clear outline of the size,structure,and distr...On the morning of May 11,2021,the National Bureau of Statistics(NBS)of China released the results of its seventh national population census.The census statistics present a clear outline of the size,structure,and distribution of China’s population as well as demographic changes from 2010 to 2020.The statistical data also point to economic and social development trends in China over the last decade.展开更多
The Shanghai High Repetition Rate XFEL and Extreme Light Facility(SHINE)is currently under construction as one of the world’s most advanced hard X-ray free-electron laser facilities.The timing system,as an essential ...The Shanghai High Repetition Rate XFEL and Extreme Light Facility(SHINE)is currently under construction as one of the world’s most advanced hard X-ray free-electron laser facilities.The timing system,as an essential part of the free-electron laser facility,provides precise timing of trigger pulse signals for a range of devices to ensure that particles are generated and accelerated to the designed energy while enabling the precise measurement of beam parameters.To precisely distribute and synchronize the 1.003086 MHz(1300/1296)timing signals over a distance of approximately 3.1 km based on White Rabbit technology,three technical routes have been proposed.This paper begins with a description of the design and development process of the timing system for the SHINE project,which culminates with the determination of the design scheme.During the installation and commissioning of the timing system,the jitter accuracy of the timing signal was tested and found to be less than 10 ps,which meets the requirements of the project.Furthermore,the precise clock synchronization signal provided by the timing system supported the joint debugging of various related systems and realization of beam acquisition.展开更多
With Openness and Innovation： Shaping the Global Economy as its theme, the 2017 Fortune Global Forum took place on December 6-8 in Guangzhou City, China＇s southern gateway to the world. The forum facilitated the ong...With Openness and Innovation： Shaping the Global Economy as its theme, the 2017 Fortune Global Forum took place on December 6-8 in Guangzhou City, China＇s southern gateway to the world. The forum facilitated the ongoing discussions among international institutions, business people and academics on wodd economic development in the post-financial crisis era, particularly the topic of how to boost world economic growth.展开更多
While still in its infancy, the solar energy industry is growing in China as the country seeks clean, cheap and renewable sources of power Shi Zhengrong, President and CEO of Suntech Power Holdings Co. Ltd., was not a...While still in its infancy, the solar energy industry is growing in China as the country seeks clean, cheap and renewable sources of power Shi Zhengrong, President and CEO of Suntech Power Holdings Co. Ltd., was not a very familiar face to people outside the solar power industry until December 14 last year. On that day, Suntech, based in Wuxi, Jiangsu Province, became the first展开更多
At the 10th Beijing International Automotive Exhibition with the theme of"Dream,Harmony,New Vision,"domestic automobile enterprises put more focus on ener- gy conservation and environmental protection.
Lexus,the world’s leading luxury car producer,brought its CT200h and six more vehicles to display at the eighth China Changchun International Auto Expo in Changchun,capital of Northeast China’s Jilin Province on Jul...Lexus,the world’s leading luxury car producer,brought its CT200h and six more vehicles to display at the eighth China Changchun International Auto Expo in Changchun,capital of Northeast China’s Jilin Province on July14.展开更多
West Lake inscribed on UNESCO’s World Heritage List as cultural landscape The famous ancient Chinese poet Bai Juyi of the Tang Dynasty(618-907) could not imagine a thousand years later the West Lake that fascinated him
China’s Beidou navigation system is used more frequently in emergencies China’s regional satellite navigation net work has been basically completed.It was marked by the successful launch of the eighth Beidou(Compass...China’s Beidou navigation system is used more frequently in emergencies China’s regional satellite navigation net work has been basically completed.It was marked by the successful launch of the eighth Beidou(Compass) satellite into orbit carried by a Long March 3 rocket on April 10.展开更多
Mixed messages about the nation’s economic health and tightened house- hold budgets have kept consumers cautious for most of 2010. Consumers have pegged their conf idence in the economy to the labor market, which has...Mixed messages about the nation’s economic health and tightened house- hold budgets have kept consumers cautious for most of 2010. Consumers have pegged their conf idence in the economy to the labor market, which has shown few signs of improvement.展开更多
Last December,avideo featuring Chinese actress Dilraba Dilmurat showcasing her dance skills on a popular Chinese travel reality show raked in numerous likes and positive feedback on social media platforms like X and Y...Last December,avideo featuring Chinese actress Dilraba Dilmurat showcasing her dance skills on a popular Chinese travel reality show raked in numerous likes and positive feedback on social media platforms like X and YouTube,captivating audiences worldwide.展开更多
文摘On the morning of May 11,2021,the National Bureau of Statistics(NBS)of China released the results of its seventh national population census.The census statistics present a clear outline of the size,structure,and distribution of China’s population as well as demographic changes from 2010 to 2020.The statistical data also point to economic and social development trends in China over the last decade.
基金supported by SHINE and Shanghai Municipal Science and Technology Major Project(No.2017SHZDZX02).
文摘The Shanghai High Repetition Rate XFEL and Extreme Light Facility(SHINE)is currently under construction as one of the world’s most advanced hard X-ray free-electron laser facilities.The timing system,as an essential part of the free-electron laser facility,provides precise timing of trigger pulse signals for a range of devices to ensure that particles are generated and accelerated to the designed energy while enabling the precise measurement of beam parameters.To precisely distribute and synchronize the 1.003086 MHz(1300/1296)timing signals over a distance of approximately 3.1 km based on White Rabbit technology,three technical routes have been proposed.This paper begins with a description of the design and development process of the timing system for the SHINE project,which culminates with the determination of the design scheme.During the installation and commissioning of the timing system,the jitter accuracy of the timing signal was tested and found to be less than 10 ps,which meets the requirements of the project.Furthermore,the precise clock synchronization signal provided by the timing system supported the joint debugging of various related systems and realization of beam acquisition.
文摘With Openness and Innovation： Shaping the Global Economy as its theme, the 2017 Fortune Global Forum took place on December 6-8 in Guangzhou City, China＇s southern gateway to the world. The forum facilitated the ongoing discussions among international institutions, business people and academics on wodd economic development in the post-financial crisis era, particularly the topic of how to boost world economic growth.
文摘While still in its infancy, the solar energy industry is growing in China as the country seeks clean, cheap and renewable sources of power Shi Zhengrong, President and CEO of Suntech Power Holdings Co. Ltd., was not a very familiar face to people outside the solar power industry until December 14 last year. On that day, Suntech, based in Wuxi, Jiangsu Province, became the first
文摘At the 10th Beijing International Automotive Exhibition with the theme of"Dream,Harmony,New Vision,"domestic automobile enterprises put more focus on ener- gy conservation and environmental protection.
文摘Lexus,the world’s leading luxury car producer,brought its CT200h and six more vehicles to display at the eighth China Changchun International Auto Expo in Changchun,capital of Northeast China’s Jilin Province on July14.
文摘West Lake inscribed on UNESCO’s World Heritage List as cultural landscape The famous ancient Chinese poet Bai Juyi of the Tang Dynasty(618-907) could not imagine a thousand years later the West Lake that fascinated him
文摘China’s Beidou navigation system is used more frequently in emergencies China’s regional satellite navigation net work has been basically completed.It was marked by the successful launch of the eighth Beidou(Compass) satellite into orbit carried by a Long March 3 rocket on April 10.
文摘Mixed messages about the nation’s economic health and tightened house- hold budgets have kept consumers cautious for most of 2010. Consumers have pegged their conf idence in the economy to the labor market, which has shown few signs of improvement.
文摘Last December,avideo featuring Chinese actress Dilraba Dilmurat showcasing her dance skills on a popular Chinese travel reality show raked in numerous likes and positive feedback on social media platforms like X and YouTube,captivating audiences worldwide.
