Zobrazeno 1 - 10
of 299
pro vyhledávání: '"Youwen, Sun"'
Autor:
Youwen Sun
Publikováno v:
AIP Advances, Vol 14, Iss 5, Pp 055206-055206-11 (2024)
To separate the complexities in plasma physics and geometric effects, compact formulas for local geometric properties of a tokamak equilibrium are presented in this paper. They are written in a form similar to the Frenet formulas. All of the geometri
Externí odkaz:
https://doaj.org/article/86401f126a404ce1a959928ed1d47e50
Publikováno v:
Geo-spatial Information Science, Pp 1-12 (2023)
ABSTRACTWe for the first time demonstrate ground-based remote sensing of Nitrous Oxide (N2O) over Hefei in eastern China from high resolution Fourier Transform Infra-Red (FTIR) solar spectra. We have retrieved Column-averaged Abundance of N2O ([Formu
Externí odkaz:
https://doaj.org/article/f122dcc6ac3f4b2ba8232b332a632130
Autor:
Jiansheng Hu, Weibin Xi, Jian Zhang, Liansheng Huang, Damao Yao, Qing Zang, Yanlan Hu, Guizhong Zuo, Qiping Yuan, Jinping Qian, Zhiwei Zhou, Xinjun Zhang, Mao Wang, Handong Xu, Yahong Xie, Zhengchu Wang, Haiqing Liu, Youwen Sun, Liang Wang, Guoqiang Li, Hongxing Yin, Yao Yang, Xianzu Gong, Kun Lu, Guosheng Xu, Junling Chen, Fukun Liu, Jiangang Li, Yuntao Song, the EAST team
Publikováno v:
AAPPS Bulletin, Vol 33, Iss 1, Pp 1-24 (2023)
Abstract Experimental Advanced Superconducting Tokamak (EAST) was built to demonstrate high-power, long-pulse operations under fusion-relevant conditions, with major radius R = 1.9 m, minor radius a = 0.5 m, and design pulse length up to 1000s. It ha
Externí odkaz:
https://doaj.org/article/6bdaf31b98e843e7969e21d3b8827746
Autor:
Cheng Liu, Youwen Sun, Changgong Shan, Wei Wang, Justus Notholt, Mathias Palm, Hao Yin, Yuan Tian, Jixi Gao, Huiqin Mao
Publikováno v:
Engineering, Vol 22, Iss , Pp 201-214 (2023)
Long-term observations of the volume mixing ratio (VMR) profiles and total columns of key atmospheric constituents are significant for understanding climate change and the impact of the carbon budget in China. This study provides an overview of the f
Externí odkaz:
https://doaj.org/article/ba0f354e62cd4010bb87ea8991c94b7e
Publikováno v:
AIP Advances, Vol 13, Iss 7, Pp 075007-075007-15 (2023)
A deep neural network is developed and trained on magnetic measurements (input) and EFIT poloidal magnetic flux (output) on the EAST tokamak. In optimizing the network architecture, we use automatic optimization to search for the best hyperparameters
Externí odkaz:
https://doaj.org/article/deba745a51e2454e80b8f026a4c53a0b
Publikováno v:
Atmosphere, Vol 14, Iss 4, p 739 (2023)
With the spread of the COVID-19 pandemic and the implementation of closure measures in 2020, population mobility and human activities have decreased, which has seriously impacted atmospheric quality. Huaibei City is an important coal and chemical pro
Externí odkaz:
https://doaj.org/article/ee6b7f0b827b443f8dec35f5c850c9ce
Publikováno v:
Environmental Science and Ecotechnology, Vol 8, Iss , Pp 100126- (2021)
This study analyzed the characteristics of air pollution and specific pollution periods within the Harbin-Changchun (HC) metropolitan area during 2014–2020. Regarding annual, seasonal, and monthly variations of the six pollutants, the change trend
Externí odkaz:
https://doaj.org/article/741a3dedcbbb4ad39cc4a09daf623d69
Autor:
Yuan Tian, Xinhua Hong, Changgong Shan, Youwen Sun, Wei Wang, Minqiang Zhou, Pucai Wang, Peize Lin, Cheng Liu
Publikováno v:
Remote Sensing, Vol 14, Iss 23, p 6045 (2022)
Since its launch on 13 October 2017, the TROPOspheric Monitoring Instrument (TROPOMI) on board the Sentinel-5 Precursor (S5P) mission has been measuring the solar radiation backscattered by Earth’s atmosphere and surface. In this study, we evaluate
Externí odkaz:
https://doaj.org/article/cd7d35330b254052a6fafd7e7dd605af
Autor:
Fubin Zhong, Tao Zhang, Yumin Wang, Fei Wen, Jia Huang, Mingfu Wu, Gongshun Li, Yukai Liu, Kangning Geng, Haoming Xiang, Kaixuan Ye, Zhen Zhou, Xiang Han, Lingyi Meng, Liang Wang, Youwen Sun, Xiang Gao
Publikováno v:
AIP Advances, Vol 11, Iss 7, Pp 075010-075010-6 (2021)
Edge localized mode (ELM) mitigation accompanied by density pump-out has been achieved during the application of resonant magnetic perturbation (RMP) with a toroidal mode number of n = 4 on EAST recently. The mean ELM frequency increases by a factor
Externí odkaz:
https://doaj.org/article/d4e1432a552d408a9bd381635f8cb156
Autor:
Haitao Zheng, Youwen Sun, Tao Luo, Xueling Cheng, Shiyong Shao, Shouyin Zheng, Bangyi Tao, Bin Chen, Qianguang Tu, Kan Huang, Bingbing Wang, Mian Wang, Xiaoquan Song, Tianshu Zhang, Yin Cheng, Jianguo Liu
Publikováno v:
Journal of Environmental Sciences. 123:156-168
Accurate and comprehensive knowledge of the atmospheric environment and its evolution within the coastal ocean boundary layer are necessary for understanding the sources, chemical mechanisms, and transport processes of air pollution in land, sea, and