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2,662 results on '"Yang, Qingxin"'

7. Distinguished biological adaptation architecture aggravated population differentiation of Tibeto-Burman-speaking people

Author

Sun, Yuntao, Wang, Mengge, Sun, Qiuxia, Liu, Yan, Duan, Shuhan, Wang, Zhiyong, Zhou, Yunyu, Zhong, Jun, Huang, Yuguo, Huang, Xinyu, Yang, Qingxin, Li, Xiangping, Su, Haoran, Cai, Yan, Jiang, Xiucheng, Chen, Jing, Yan, Jiangwei, Nie, Shengjie, Hu, Liping, Yang, Junbao, Tang, Renkuan, Wang, Chuan-Chao, Liu, Chao, Deng, Xiaohui, Yun, Libing, and He, Guanglin

Published
2024
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14. IFR-Net: Iterative Feature Refinement Network for Compressed Sensing MRI

Author

Liu, Yiling, Liu, Qiegen, Zhang, Minghui, Yang, Qingxin, Wang, Shanshan, and Liang, Dong

Subjects
Computer Science - Machine Learning, Electrical Engineering and Systems Science - Image and Video Processing, Statistics - Machine Learning
Abstract

To improve the compressive sensing MRI (CS-MRI) approaches in terms of fine structure loss under high acceleration factors, we have proposed an iterative feature refinement model (IFR-CS), equipped with fixed transforms, to restore the meaningful structures and details. Nevertheless, the proposed IFR-CS still has some limitations, such as the selection of hyper-parameters, a lengthy reconstruction time, and the fixed sparsifying transform. To alleviate these issues, we unroll the iterative feature refinement procedures in IFR-CS to a supervised model-driven network, dubbed IFR-Net. Equipped with training data pairs, both regularization parameter and the utmost feature refinement operator in IFR-CS become trainable. Additionally, inspired by the powerful representation capability of convolutional neural network (CNN), CNN-based inversion blocks are explored in the sparsity-promoting denoising module to generalize the sparsity-enforcing operator. Extensive experiments on both simulated and in vivo MR datasets have shown that the proposed network possesses a strong capability to capture image details and preserve well the structural information with fast reconstruction speed.

Published
2019

22. Fluorescence temperature sensing based on thermally activated singlet-triplet intersystem crossing in crystalline anthracene

Author

Tang, Cheng, Zhu, Xiaojun, Song, Yunfei, Liu, Weilong, Yang, Qingxin, lv, Zhe, and Yang, Yanqiang

Subjects
Physics - Applied Physics
Abstract

The temperature dependence of the steady-state fluorescence spectrum of anthracene crystals range from 300K to 500K had been investigated, which was in the temperature range of most tabletop laser-driven shock wave experiments. The interesting finding is that the fluorescence intensity of the 2-0 transition increases more rapidly than other transitions with the rising temperature. In particular, the transition intensity ratios {\gamma}n all shows a perfect exponential increasing curve, which can be used for fluorescence temperature sensing. The analysis of sensitivity {\eta} and random uncertainty {\Delta}T has demonstrated that the intensity ratio {\gamma}2 is the best comprehensive performance physical quantity for temperature sensing. The theoretical analysis and experimental results demonstrated that unusual intensity increasing of 2-0 transition was originated from the second excited triplet state T2, which was thermally coupled with the first excited singlet sate S1. In a word, we established a new fluorescence temperature sensing method based on the intensity ratio and clarified the mechanism of this method was the thermally activated singlet-triplet intersystem crossing., Comment: 10 pages, 5figures

Published
2019
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23. Studies on Intelligent Manufacturing Technology of Marine Radar

Author

Chen, Jian, Yang, Qingxin, Lu, Kun, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Duan, Baoyan, editor, Umeda, Kazunori, editor, and Kim, Chang-wan, editor

Published
2022
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33. CO2 Hydrogenation to Hydrocarbons over Fe‐Based Catalysts: Status and Recent Developments.

Author

Krausser, Laura, Yang, Qingxin, and Kondratenko, Evgenii V.

Subjects
*RENEWABLE energy sources, *CATALYSTS, *MANUFACTURING processes, *CHEMICAL industry, *HYDROCARBONS
Abstract

To control anthropogenic CO2 emissions worldwide, it is necessary not only to align the chemical industry and energy sector with renewable resources but also to implement large‐scale utilization of CO2 as a feedstock. The Fe‐catalyzed CO2‐modified Fischer‐Tropsch Synthesis (CO2‐FTS) is one of the most promising options for efficient CO2 utilization, as it can be used to synthesize desired higher hydrocarbons (C2+), including lower olefins (C2=‐C4=), the main building blocks of the chemical industry, and long‐chain hydrocarbons (C5+), which can be used as fuels. To optimize catalyst and process design for the purpose of developing an economically viable industrial process, the reaction mechanism and the factors controlling product selectivity need to be fully understood. This article discusses the current state‐of‐the‐art in catalyst design and approaches for making effective progress in addressing these challenges. [ABSTRACT FROM AUTHOR]

Published
2024
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41. Lattice-Stabilized Chromium Atoms on Ceria for N2O Synthesis

Author

Yang, Qingxin, primary, Surin, Ivan, additional, Geiger, Julian, additional, Eliasson, Henrik, additional, Agrachev, Mikhail, additional, Kondratenko, Vita A., additional, Zanina, Anna, additional, Krumeich, Frank, additional, Jeschke, Gunnar, additional, Erni, Rolf, additional, Kondratenko, Evgenii V., additional, López, Núria, additional, and Pérez-Ramírez, Javier, additional

Published
2023
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47. Genomic monitoring of SARS-CoV-2 uncovers an Nsp1 deletion variant that modulates type I interferon response

Author

Lin, Jing-wen, Tang, Chao, Wei, Han-cheng, Du, Baowen, Chen, Chuan, Wang, Minjin, Zhou, Yongzhao, Yu, Ming-xia, Cheng, Lu, Kuivanen, Suvi, Ogando, Natacha S., Levanov, Lev, Zhao, Yuancun, Li, Chang-ling, Zhou, Ran, Li, Zhidan, Zhang, Yiming, Sun, Ke, Wang, Chengdi, Chen, Li, Xiao, Xia, Zheng, Xiuran, Chen, Sha-sha, Zhou, Zhen, Yang, Ruirui, Zhang, Dan, Xu, Mengying, Song, Junwei, Wang, Danrui, Li, Yupeng, Lei, ShiKun, Zeng, Wanqin, Yang, Qingxin, He, Ping, Zhang, Yaoyao, Zhou, Lifang, Cao, Ling, Luo, Feng, Liu, Huayi, Wang, Liping, Ye, Fei, Zhang, Ming, Li, Mengjiao, Fan, Wei, Li, Xinqiong, Li, Kaiju, Ke, Bowen, Xu, Jiannan, Yang, Huiping, He, Shusen, Pan, Ming, Yan, Yichen, Zha, Yi, Jiang, Lingyu, Yu, Changxiu, Liu, Yingfen, Xu, Zhiyong, Li, Qingfeng, Jiang, Yongmei, Sun, Jiufeng, Hong, Wei, Wei, Hongping, Lu, Guangwen, Vapalahti, Olli, Luo, Yunzi, Wei, Yuquan, Connor, Thomas, Tan, Wenjie, Snijder, Eric J., Smura, Teemu, Li, Weimin, Geng, Jia, Ying, Binwu, and Chen, Lu

Published
2021
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