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2. Measurement of the neutron flux of CSNS Back-n ES#1 under small collimators from 0.5 eV to 300 MeV

Author

Chen, Yonghao, Qiu, Yijia, Li, Qiang, Tang, Shengda, Yang, Yiwei, Ren, Zhizhou, Jiang, Wei, Fan, Ruirui, Yi, Han, Liu, Rong, Tang, Jingyu, Jing, Hantao, Lan, Changlin, Li, Yang, Tan, Zhixin, An, Qi, Bai, Jiangbo, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Zhen, Cui, Zengqi, Feng, Changqing, Gao, Keqing, Gao, Xiaolong, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Huang, Xiru, Jiang, Haoyu, Jiang, Zhijie, Kang, Ling, Li, Bo, Li, Chao, Li, Jiawen, Li, Xiao, Liu, Jie, Liu, Shubin, Liu, Xingyan, Long, Ze, Luan, Guangyuan, Ning, Changjun, Niu, Mengchen, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Sun, Zhijia, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Xiaoyun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhou, Luping, Zhou, Zhihao, and Zhu, Kejun

Published
2024
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6. Measurements of differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV

Author

Jiang, Haoyu, Jiang, Wei, Bai, Huaiyong, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Yi, Han, Ning, Changjun, Zhou, Liang, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Subjects
Nuclear Experiment
Abstract

Differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li, $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions have been measured at CSNS Back-n white neutron source. Two enriched (90%) $^{10}$B samples 5.0 cm in diameter and ~85.0 ${\mu}$g/cm$^{2}$ in thickness each with an aluminum backing were prepared, and back-to-back mounted at the sample holder. The charged particles were detected using the silicon-detector array of the Light-charged Particle Detector Array (LPDA) system. The neutron energy E$_{n}$ was determined by TOF (time-of-flight) method, and the valid ${\alpha}$ events were extracted from the E$_{n}$-Amplitude two-dimensional spectrum. With 15 silicon detectors, the differential cross sections of ${\alpha}$-particles were measured from 19.2{\deg} to 160.8{\deg}. Fitted with the Legendre polynomial series, the ($n, {\alpha}$) cross sections were obtained through integration. The absolute cross sections were normalized using the standard cross sections of the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the 0.3 - 0.5 MeV neutron energy region. The measurement neutron energy range for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction is 1.0 eV $\le$ En < 2.5 MeV (67 energy points), and for the $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions is 1.0 eV $\le$ En < 1.0 MeV (59 energy points). The present results have been analyzed by the resonance reaction mechanism and the level structure of the $^{11}$B compound system, and compared with existing measurements and evaluations., Comment: 19 pages, 34 figures, to be published in Chinese Physics C

Published
2019
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7. Measurement of the neutron beam profile of the Back-n white neutron facility at CSNS with a Micromegas detector

Author

Qi, Binbin, Li, Yang, Zhu, Danyang, Zhang, Zhiyong, Fan, Ruirui, Pan, Jiang, Feng, Jianxin, Liu, Chengming, Feng, Changqing, Liu, Jianbei, Shao, Ming, Zhou, Yi, Wang, Yanfeng, Yi, Han, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingming, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Kejun, and Zhu, Peng

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of the China Spallation Neutron Source, is used for nuclear data measurements. A Micromegas-based neutron detector with two variants was specially developed to measure the beam spot distribution for this beam line. In this article, the design, fabrication, and characterization of the detector are described. The results of the detector performance tests are presented, which include the relative electron transparency, the gain and the gain uniformity, and the neutron beam profile reconstruction capability. The result of the first measurement of the Back-n neutron beam spot distribution is also presented., Comment: 31 pages, 18 figures

Published
2019
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8. Determination of the 232Th(n,γ) cross section from 10 to 200 keV at the Back-n facility at CSNS

Author

Wang, Jincheng, Ren, Jie, Jiang, Wei, Ruan, Xichao, Sun, Qi, Hu, Jifeng, Jiang, Bing, Bao, Jie, Zhang, Qiwei, Luan, Guangyuan, Huang, Hanxiong, Nie, Yangbo, Ge, Zhigang, An, Qi, Bai, Haofan, Bai, Jiangbo, Cao, Ping, Chen, Qiping, Chen, Yonghao, Chen, Zhen, Cui, Zengqi, Fan, Anchuan, Fan, Ruirui, Feng, Changqing, Feng, Fanzhen, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Jia, Weihua, Jiang, Haoyu, Jiang, Zhijie, Jin, Zhengyao, Kang, Ling, Li, Bo, Li, Chao, Li, Gong, Li, Jiawen, Li, Qiang, Li, Yang, Liu, Jie, Liu, Rong, Liu, Shubin, Ning, Changjun, Qi, Binbin, Ren, Zhizhou, Song, Zhaohui, Sun, Kang, Tan, Zhixin, Tang, Jingyu, Tang, Shengda, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Mohan, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Yue, Zhang, Zhiyong, Zhao, Maoyuan, Zhou, Luping, Zhu, Kejun, and Zhang, Jie

Published
2023
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9. Progress in measurements of fission cross sections and total cross sections at CSNS Back-n white neutron source

Author

Liu, Rong, Yang, Yiwei, Ren, Zhizhou, Wen, Zhongwei, Wen, Jie, Liu, Xingyan, Chen, Yonghao, Yi, Han, Han, Zijie, Chen, Qiping, Bao, Jie, An, Qi, Bai, Huaiyong, Cao, Ping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2023
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11. Experimental studies on nuclide identification radiography with a CMOS camera at Back-n white neutron source

Author

Wang, Lijiao, Li, Qiang, Tang, Jingyu, Chen, Yonghao, Jing, Hantao, Tan, Zhixin, Tian, Binbin, Li, Gong, Jin, Zhengyao, Fan, Ruirui, Ning, Changjun, An, Qi, Bai, Haofan, Bai, Jiangbo, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Zhen, Cui, Zengqi, Fan, Anchuan, Feng, Changqing, Feng, Fanzhen, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Jia, Weihua, Jiang, Haoyu, Jiang, Wei, Jiang, Zhijie, Kang, Ling, Li, Bo, Li, Chao, Li, Jiawen, Li, Xiao, Li, Yang, Liu, Jie, Liu, Rong, Liu, Shubin, Luan, Guangyuan, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Tang, Shengda, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Mohan, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yue, Zhang, Zhiyong, Zhao, Maoyuan, Zhou, Luping, Zhou, Zhihao, and Zhu, Kejun

Published
2023
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12. Preparation of No-Carrier-Added 177Lu by DGA Resin Assisted Cyclic Elution

Author

ZHUO Liangang;YANG Yuchuan;YUE Haidong;XIONG Xiaoling;WANG Guanquan;WANG Hailin;YANG Lin;LIN Qingchuan;CHEN Qiping;TU Jun;WEI Hongyuan

Subjects
no-carrier-added 177lu, dga resin, medical isotopes, 177lu separations, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

A preparation process of No-Carrier-Added (NCA) 177Lu in China Mianyang Research Reactor (CMRR）was investigated. In this work, the key component of the process is DGA resin column which can adsorb Yb(Ⅲ) and Lu(Ⅲ) metal ions in the eluent was added to the purification process of 177Lu. The eluent “on-line” cyclic elution of lanthanide resin column was realized through special flow path connection. The tracer test showed that this technology can effectively reduce the volume of radioactive acid waste liquid generated from purification process of 177Lu. The technology was verified in three batches production, and the primary separation stage reduced the volume of waste liquid above 86%. The NCA 177Lu product prepared by cyclic elution process meets the quality requirements.

Published
2022
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14. A Synergistic Effect of Remnant Cholesterol and C-Reactive Protein on Predicting the Severity of Coronary Artery Disease.

Author

Zhang, Zhen, Chen, Qiang, Chen, Qiping, Hou, Jun, Li, Xin, Fu, Jinjuan, Luo, Yan, Su, Hong, Long, Yu, Feng, Qiao, Peng, Xiufen, Jiang, Maoling, Wu, Daiqian, Liu, Hanxiong, Cai, Lin, and Xiong, Shiqiang

Abstract

Background: Increased levels of remnant cholesterol (RC) and inflammation are linked to higher risks of atherosclerotic cardiovascular disease. Whether a combination of C-reactive protein (CRP) and RC improves the predictive ability for evaluating the severity of coronary artery lesions remains unknown. Methods: A total of 1675 patients with coronary artery disease were stratified according to the Synergy Between Percutaneous Coronary Intervention (SYNTAX) score (SYNTAX score ≤ 22 versus SYNTAX score > 22). Logistic regression and restricted cubic spline models were used to evaluate the relationship between RC, CRP and the severity of coronary artery lesions. Multivariate logistic regression was used to identify predictors of a mid/high SYNTAX score (SYNTAX score > 22). The predictive value of RC combined with CRP was estimated by the ROC curve, continuous net reclassification improvement (NRI) and integrated discrimination improvement (IDI). Results: The multivariable-adjusted odds ratios (95% CIs) for the highest versus lowest quartile of RC were 2.143 (1.450– 3.166) for a mid/high SYNTAX score (SYNTAX score > 22). The association of RC with severity of coronary artery lesions was maintained significant in the subsample of patients, regardless of traditional cardiovascular risk factors like LDL-C levels and glycemic metabolism status. Moreover, the addition of CRP and RC to the baseline risk model had an incremental effect on the predictive value for a mid/high SYNTAX score (increase in C‑statistic value from 0.650 to 0.698; IDI 0.03; NRI 0.306; all P < 0.01). Conclusion: Elevated RC levels were significantly associated with the severity of coronary artery lesions even in patients with optimal low-density lipoprotein cholesterol levels. Adjustment of the RC by CRP further improved the predictive ability for the severity of coronary artery lesions. The combination of RC and CRP might serve as a noninvasive predictor of CAD complexity and could potentially influence the management and therapeutic approach. [ABSTRACT FROM AUTHOR]

Published
2024
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16. Effect of Seedling Rates on Crop Yield and Methane Emissions from Rice Paddies.

Author

Chen, Qiping, Li, Hao, Huang, Hexian, and Wang, Wei

Subjects
*GREENHOUSE gas mitigation, *CROP yields, *GREENHOUSE plants, *AGRICULTURE, *GRAIN yields, *PADDY fields
Abstract

Agricultural strategies are urgently needed to mitigate greenhouse gas emissions without reducing crop yield. Seedling rate per hill will affect the quantity and quality of tillers, which may affect rice yield and CH4 emissions. Therefore, it is hypothesized that high yields with low yield-scaled CH4 emissions could be achieved with optimal seedling rate per hill. A field experiment was conducted with three densities (low seedling rate, LSR; moderate seedling rate, MSR; and high seedling rate, HSR) for two consecutive rice seasons. The CH4 fluxes were determined by the static chamber–GC method. The results showed no significant differences in rice yields, seasonal CH4 emissions, or yield-scaled CH4 emissions between the three treatments. For early rice, the HSR tended to achieve high yield without increasing yield-scaled CH4 emissions. As for late rice, the MSR showed similar rice yield, and tended to have lower yield-scaled CH4 emissions in comparison with the HSR. The results suggest that choosing an appropriate seedling rate per hill to increase grain yield while maintaining lower or comparable yield-scaled CH4 emissions can be a promising option to reduce CH4 emissions from rice paddies. [ABSTRACT FROM AUTHOR]

Published
2024
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18. Measurement of the 236,238U(n,f) cross sections from the threshold to 200 MeV at CSNS Back-n

Author

Ren, Zhizhou, Yang, Yiwei, Liu, Rong, Ye, Bangjiao, Wen, Zhongwei, Wen, Jie, Guo, Hairui, Chen, Yonghao, Yi, Han, Sun, Weili, Yan, Jie, Han, Zijie, Liu, Xingyan, Chen, Qiping, Ye, Tao, Bai, Jiangbo, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2023
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21. Measurement of Neutron-Induced Single-Event Upset Cross Section of UltraScale Kintex FPGA Using Time-of-Flight Technique

Author

Teng, Yao, Feng, Changqing, Tan, Zhixin, Liu, Zhengtao, Qin, Zhizhen, Tang, Songsong, Fan, Ruirui, Zhou, Bin, Hu, Zhiliang, Zhao, Lei, Liu, Shubin, Bai, Haofan, Bai, Jiangbo, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Duan, Wenhao, Fan, Anchuan, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Jiang, Wei, Jiang, Zhijie, Kang, Ling, Lan, Changlin, Li, Bo, Li, Feng, Li, Qiang, Li, Xiao, Li, Yang, Liu, Jie, Liu, Rong, Liu, Yina, Luan, Guangyuan, Ning, Changjun, Qiu, Yijia, Ren, Jie, Ren, Wenkai, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Tang, Jingyu, Tang, Shengda, Wang, Jincheng, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Wu, Zepeng, Xia, Cong, Xie, Likun, Yi, Han, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Hangchang, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Maoyuan, Zhou, Zhihao, Zhu, Kejun, and Zou, Chong

Abstract

The correlation between neutron energy and neutron-induced soft error rate (SER) is crucial for estimating the impact on electronic devices fabricated using complementary metal-oxide-semiconductor (CMOS) technology in diverse neutron environments, including those found in high-energy physics experiments, aviation settings, and so on. This article presents an investigation conducted independently at China spallation neutron source (CSNS) using the Back-n white neutron source and atmospheric neutron irradiation spectrometer (ANIS) neutron source to directly measure single-event upset (SEU) effects of the configuration random access memory (CRAM) and block random access memory (BRAM) in 20-nm CMOS technology-based UltraScale Kintex FPGA. By recording the frequency of SEU events and the time of flight (TOF), SEU cross sections can be calculated for different energies. Experiment in situ indicates a coherent alignment of different outcomes under neutron irradiation from Back-n and ANIS, despite their different neutron energy spectra. The SEU threshold energy is estimated to be $0.69~\pm ~0.076$ MeV for CRAM and $0.80~\pm ~0.013$ MeV for BRAM. The measured cross sections can reach saturation of $6.9\times 10^{-15}$ cm2/bit and $1.6\times 10^{-14}$ cm2/bit for CRAM and BRAM, respectively, while the neutron energy is about 20 MeV.

Published
2024
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24. Background study for [formula omitted] cross section measurements with C[formula omitted]D[formula omitted] detectors at CSNS Back-n

Author

Ren, Jie, Ruan, Xichao, Jiang, Wei, Bao, Jie, Luan, Guangyuan, Zhang, Qiwei, Huang, Hanxiong, Nie, Yangbo, Ge, Zhigang, An, Qi, Bai, Huaiyong, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Zhizhou, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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25. Effects of Fallow Season Water and Straw Management on Methane Emissions and Associated Microorganisms.

Author

Wang, Wei, Chen, Qiping, Huang, Hexian, and Xie, Yonghong

Subjects
*RESTRICTION fragment length polymorphisms, *RICE straw, *WATER management, *POLYMERASE chain reaction, *WATER purification
Abstract

The effects of fallow season water and straw management on methane (CH4) emissions during the fallow season and the subsequent rice-growing season are rarely reported, and the underlying microbial mechanisms remain unclear. A field experiment was conducted with four treatments: (1) fields flooded in both the fallow and rice seasons (FF), (2) fields drained in the fallow season and flooded in the rice season (DF), (3) FF with straw retention (FFS), and (4) DF with straw retention (DFS). The CH4 emissions in fields under different water and straw treatments were monitored using the static closed chamber method. Methanogenic and methanotrophic communities in these fields were examined using terminal restriction fragment length polymorphism (T-RFLP) analysis based on the mcrA gene and pmoA gene encoding methyl coenzyme M reductase and particulate methane monooxygenase, respectively. The results showed that CH4 emissions were significantly affected by water management, straw retention, season, and their interactions. Over 80% of CH4 emissions occurred during the rice season. Field drainage during the fallow season reduced CH4 emissions by 47.0% and 53.8% with and without straw during the rice season, respectively. Water management altered the abundance and composition of methanogens and methanotrophs, whereas the effects of straw retention were less pronounced. The quantitative polymerase chain reaction (qPCR) assay revealed that field drainage in the fallow season decreased the mcrA gene abundance by 30.0% and 23.2% with and without straw in rice season, respectively, and increased the pmoA gene abundance by 108.9% and 213.7% with and without straw in rice season, respectively. CH4 flux was significantly positively associated with mcrA gene copy number and the ratio of mcrA to pmoA gene copy number, whereas it was significantly negatively correlated with the pmoA gene copy number. Results indicated that fallow drainage greatly decreased CH4 emission not only during the fallow season but also during the subsequent rice season by altering the community composition of methanogens and methanotrophs. These findings provide scientific insight into the role of water and straw management in controlling CH4 emissions through microbial community dynamics. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Detection of low-energy charged-particle using the [formula omitted]E-E telescope at the Back-n white neutron source

Author

Fan, Ruirui, Jiang, Haoyu, Jiang, Wei, Zhang, Guohui, Yi, Han, Sun, Kang, Bai, Huaiyong, Zhou, Liang, Ning, Changjun, He, Yuefeng, Zhao, Yingtan, Wang, Yanfeng, He, Yongcheng, Cui, Zengqi, Sun, Zhijia, An, Qi, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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28. Neutron and [formula omitted] background measurements of the experimental halls at the CSNS back-streaming white neutron source

Author

Li, Qiang, Jing, Hantao, Zhou, Bin, Ning, Changjun, Tang, Jingyu, Ren, Jie, Yi, Han, Zhu, Xing, Zhang, Liying, Jiang, Wei, Fan, Ruirui, Bao, Jie, Feng, Changqing, Ruan, Xichao, Chen, Yonghao, Zhou, Luping, Li(a), Yang, Tan, Zhixin, Chen, Yukai, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Xiao, Li(b), Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Qi, Binbin, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tang, Hongqing, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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30. Application of a silicon detector array in [formula omitted] reaction cross-section measurements at the CSNS Back-n white neutron source

Author

Jiang, Wei, Bai, Huaiyong, Jiang, Haoyu, Yi, Han, Fan, Ruirui, Zhang, Guohui, Tang, Jingyu, Sun, Zhijia, Ning, Changjun, Sun, Kang, Gao, Keqing, Cui, Zengqi, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Liang, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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31. Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

Author

Wen, Jie, Yang, Yiwei, Wen, Zhongwei, Liu, Rong, Liu, Xingyan, Han, Zijie, Chen, Qiping, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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32. Measurement of the neutron beam profile of the Back-n white neutron facility at CSNS with a Micromegas detector

Author

Qi, Binbin, Li, Yang, Zhu, Danyang, Zhang, Zhiyong, Fan, Ruirui, Pan, Jiang, Feng, Jianxin, Liu, Chengming, Feng, Changqing, Liu, Jianbei, Shao, Ming, Zhou, Yi, Wang, Yanfeng, Yi, Han, An, Qi, Bai, Huaiyong, Bao, Jie, Cao, Ping, Chen, Qiping, Chen, Yonghao, Cheng, Pinjing, Cui, Zengqi, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingming, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Kejun, and Zhu, Peng

Published
2020
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33. Combined gamma-ray and energy-selective neutron radiography at CSNS

Author

Yan, Xiaosong, Yang, Yigang, Li, Qiang, Yang, Xin, Lu, Jian, Meng, Shijian, Tan, Zhixin, Yang, Yiwei, An, Qi, Bai, Huaiyong, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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35. Measurement of relative differential cross sections of the neutron-deuteron elastic scattering for neutron energy from 13 to 52 MeV

Author

Cui, Zengqi, Jiang, Haoyu, Jiang, Wei, Zhang, Guohui, Fan, Ruirui, Pang, Danyang, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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36. The 6LiF-silicon detector array developed for real-time neutron monitoring at white neutron beam at CSNS

Author

Li, Qiang, Luan, Guangyuan, Bao, Jie, Tang, Jingyu, Jing, Hantao, Fan, Ruirui, Bai, Huaiyong, Jiang, Wei, Ning, Changjun, Ren, Jie, Ruan, Xichao, Chen, Yonghao, Zhang, Guohui, Yi, Han, An, Qi, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Ma, Yinglin, Qi, Binbin, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2019
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38. Erratum to: Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

Author

Liu, Xingyan, Yang, Yiwei, Liu, Rong, Wen, Zhongwei, Wen, Jie, Han, Zijie, Chen, Yonghao, Jing, Hantao, Yi, Han, Bao, Jie, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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40. Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

Author

Liu, Xingyan, Yang, Yiwei, Liu, Rong, Wen, Zhongwei, Wen, Jie, Han, Zijie, Chen, Yonghao, Jing, Hantao, Yi, Han, Bao, Jie, Ren, Zhizhou, An, Qi, Bai, Huaiyong, Cao, Ping, Chen, Qiping, Cheng, Pinjing, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, He, Guozhu, He, Yongcheng, He, Yuefeng, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Li, Yang, Liu, Shubin, Luan, Guangyuan, Ma, Yinglin, Ning, Changjun, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wang, Zheng, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Jing, Zhang, Linhao, Zhang, Liying, Zhang, Qingmin, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yingtan, Zhou, Liang, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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47. Measurement of the relative differential cross sections of the 1H(n,el) reaction in the neutron energy range from 6 MeV to 52 MeV

Author

Jiang, Haoyu, Jiang, Wei, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Zhou, Liang, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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49. AFS control system research of distributed drive electric vehicles by adaptive super-twisting sliding mode control.

Author

Chen, Qiping, Xiong, Zuqi, Hu, Yiming, Huang, Liang, Liu, Qin, and You, Daoliang

Subjects
*SLIDING mode control, *CHATTERING control (Control systems), *ELECTRIC vehicles, *STEERING gear, *MOTOR vehicle driving
Abstract

To solve the problems of serious buffeting in traditional sliding mode control and difficulty in obtaining the derivative information of the system sliding mode surface, a distributed drive electric vehicles active front steering (AFS) control method based on adaptive super-twisting sliding mode control (ASTSMC) is proposed. Taking the yaw rate deviation as the state quantity, the stable and convergent sliding mode surface is designed to obtain the equivalent control input of the front wheel angle. The sliding mode function information is substituted into the parameters of the super-twisting algorithm; the discontinuous term is kept in the integrand function to keep the control signal continuous and weaken the system chattering; the adaptive control law is added to design the AFS controller. The co-simulation results of Matlab/Simulink and Carsim show that ASTSMC can reduce the yaw rate by 40.59% compared with no control under step steering condition. Compared with the sliding mode controller, ASTSMC has optimized the sideslip angle by 5.41% under the double line shifting condition. [ABSTRACT FROM AUTHOR]

Published
2024
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