检索结果-内蒙古大学图书馆

37th International Cosmic Ray Conference, ICRC 2021

作者： Sun, Q.N. Geng, L.S. Li, X. Chen, L. Liu, H. Wang, Y. Zhu, F.R. Zhang, Y. Cao, Zhen Aharonian, F. An, Q. Axikegu Bai, L.X. Bai, Y.X. Bao, Y.W. Bastieri, D. Bi, X.J. Bi, Y.J. Cai, H. Cai, J.T. Cao, Zhe Chang, J. Chang, J.F. Chen, B.M. Chen, E.S. Chen, J. Chen, Liang Chen, Liang Chen, Long Chen, M.J. Chen, M.L. Chen, Q.H. Chen, S.H. Chen, S.Z. Chen, T.L. Chen, X.L. Chen, Y. Cheng, N. Cheng, Y.D. Cui, S.W. Cui, X.H. Cui, Y.D. D’Ettorre Piazzoli, B. Dai, B.Z. Dai, H.L. Dai, Z.G. Danzengluobu della Volpe, D. Dong, X.J. Duan, K.K. Fan, J.H. Fan, Y.Z. Fan, Z.X. Fang, J. Fang, K. Feng, C.F. Feng, L. Feng, S.H. Feng, Y.L. Gao, B. Gao, C.D. Gao, L.Q. Gao, Q. Gao, W. Ge, M.M. Geng, L.S. Gong, G.H. Gou, Q.B. Gu, M.H. Guo, F.L. Guo, J.G. Guo, X.L. Guo, Y.Q. Guo, Y.Y. Han, Y.A. He, H.H. He, H.N. He, J.C. He, S.L. He, X.B. He, Y. Heller, M. Hor, Y.K. Hou, C. Hu, H.B. Hu, S. Hu, S.C. Hu, X.J. Huang, D.H. Huang, Q.L. Huang, W.H. Huang, X.T. Huang, X.Y. Huang, Z.C. Ji, F. Ji, X.L. Jia, H.Y. Jiang, K. Jiang, Z.J. Jin, C. Ke, T. Kuleshov, D. Levochkin, K. Li, B.B. Li, Cheng Li, Cong Li, F. Li, H.B. Li, H.C. Li, H.Y. Li, J. Li, K. Li, W.L. Li, X.R. Li, Xin Li, Xin Li, Y. Li, Y.Z. Li, Zhe Li, Zhuo Liang, E.W. Liang, Y.F. Lin, S.J. Liu, B. Liu, C. Liu, D. Liu, H. Liu, H.D. Liu, J. Liu, J.L. Liu, J.S. Liu, J.Y. Liu, M.Y. Liu, R.Y. Liu, S.M. Liu, W. Liu, Y. Liu, Y.N. Liu, Z.X. Long, W.J. Lu, R. Lv, H.K. Ma, B.Q. Ma, L.L. Ma, X.H. Mao, J.R. Masood, A. Min, Z. Mitthumsiri, W. Montaruli, T. Nan, Y.C. Pang, B.Y. Pattarakijwanich, P. Pei, Z.Y. Qi, M.Y. Qi, Y.Q. Qiao, B.Q. Qin, J.J. Ruffolo, D. Rulev, V. Sáiz, A. Shao, L. Shchegolev, O. Sheng, X.D. Shi, J.Y. Song, H.C. Stenkin, Yu.V. Stepanov, V. Su, Y. Sun, Q.N. Sun, X.N. Sun, Z.B. Tam, P.H.T. School of Physical Science and Technology School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu610031 China Key Laboratory of Particle Astrophyics Experimental Physics Division Computing Center Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China University of Chinese Academy of Sciences Beijing100049 China TIANFU Cosmic Ray Research Center Sichuan Chengdu China Dublin Institute for Advanced Studies 31 Fitzwilliam Place Dublin02 Ireland Max-Planck-Institut for Nuclear Physics P.O. Box 103980 Heidelberg69029 Germany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Anhui Hefei230026 China School of Physical Science and Technology School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu610031 China College of Physics Sichuan University Sichuan Chengdu610065 China School of Astronomy and Space Science Nanjing University Jiangsu Nanjing210023 China Center for Astrophysics Guangzhou University Guangdong Guangzhou510006 China School of Physics and Technology Wuhan University Hubei Wuhan430072 China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Jiangsu Nanjing210023 China Hebei Normal University Hebei Shijiazhuang050024 China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai200030 China Ministry of Education Tibet Lhasa850000 China National Astronomical Observatories Chinese Academy of Sciences Beijing100101 China Sun Yat-sen University Guangdong Zhuhai519000 China Dipartimento di Fisica dell’Università di Napoli `‘Federico II" Complesso Universitario di Monte Sant’Angelo

The atmospheric quality plays an important role in the air shower observation by the Wide Field-of-view Cherenkov Telescope Array (WFCTA) of LHAASO. A YAG imaging lidar system was developed to continuously monitor the calorimetric information. The accuracy of atmospheric monitoring is dependent on the pulse energy, the YAG laser’s beam parameters and the angular repeatability of a High-precision 3D lifting Rotating Platform (HiRoP). Therefore, we designed an optical system for this lidar with a beam splitter to divide the laser beam into a reference beam and a calibrating beam with a certain ratio and coupled the beam paths with the movement of HiRoP. Thus, every pulse energy of the calibrating beam, which has the same energy fluctuation with respect to the reference beam recorded by a power meter, could be calculated by the ratio of the two beams. Great cares were also taken to characterize the beam size, polarization and divergence of the laser. Meanwhile, a high-precision home-made thermotank was designed to control the temperature and humidity to improve the performance and stability of our laser system, which resulting in a thermal fluctuation less than 2 ◦C inside the container in the winter at an altitude of 4410 m. As a result, the pulse energy fluctuation of the laser beam for calibration was improved from 5 % to less than 2 %. As a result, we have successfully attained distinguishable full-WFCTA-view scanning Laser images in different air conditions, which could be used for the atmospheric quality analysis in further. © Copyright owned by the author(s).

关键词： Yttrium aluminum garnet

来源：评论

学校读者我要写书评

暂无评论

Dynamic Inconsistency between Electrochemical Reaction and Phase Transition in Na-Deficient Layered Cathode Materials

SSRN

引用

SSRN 2023年

作者： Hua, Weibo Yang, Xiaoxia Wang, Suning Li, Hang Senyshyn, Anatoliy Tayal, Akhil Baran, Volodymyr Chen, Zhongjun Avdeev, Maxim Knapp, Michael Ehrenberg, Helmut Saadoune, Ismael Chou, Shulei Indris, Sylvio Guo, Xiaodong School of Chemical Engineering and Technology Xi'an Jiaotong University No.28 West Xianning Road Shaanxi Xi'An710049 China Hermann-von-Helmholtz-Platz 1 Eggenstein-LeopoldshafenD-76344 Germany School of Chemical Engineering Sichuan University No. 24 South Section 1 Yihuan Road Chengdu610065 China Heinz Maier-Leibnitz Zentrum Technische Universität München Lichtenbergstrasse 1 Garching85747 Germany Notkestr. 85 Hamburg22607 Germany Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing China Australian Nuclear Science and Technology Organisation Locked Bag 2001 DC KirraweeNSW2232 Australia Lot 660 – Hay Moulay Rachid Benguerir43150 Morocco Institute for Carbon Neutralization College of Chemistry and Materials Engineering Wenzhou University Wenzhou325035 China

Electrochemical characteristics, as revealed by the charge-discharge voltage profiles, are commonly used to identify phase transitions in electrode materials during electrochemical cycling. However, such identifications are only valid under the condition of fast kinetics of phase transitions. Herein, layered Na2/3Ni0.25Mn0.75O2 with various structures, including a P3-type phase (C2/m), a P2-type structure (P63), or a mixture of P2- and P3-type phases, were synthesized through precisely controlling the heating temperature. The structural evolution and charge compensation mechanism of these cathode materials were systematically investigated upon cycling using in situ synchrotron-based characterization techniques. Very complicated phase transitions occur when these compounds are cycled between 1.5 and 4.5 V. Upon careful examination of the experimental results, it becomes evident that the phase transformations in P-type layered cathode materials exhibit significant hysteresis during high-voltage cycling, as observed at the end of charge (4.5 V) at 0.1 C, but remain undetected at a slower current density of 0.05 C, indicative of the sluggish kinetics of these transformations. The experimental results unambiguously confirm that while the shape of the voltage curves of the cathodes is consistent with the cationic-anionic redox processes, it does not match the phase transitions. These findings provide a more fundamental understanding of the hysteresis of the phase transitions in P-type layered cathode materials during high-voltage cycling. © 2023, The Authors. All rights reserved.

关键词： Sodium-ion batteries

来源：评论

学校读者我要写书评

暂无评论

nuclear mass table in deformed relativistic Hartree-Bogoliubov theory in continuum, II: Even-Z nuclei

arXiv

引用

arXiv 2024年

作者： Guo, Peng Cao, Xiaojie Chen, Kangmin Chen, Zhihui Cheoun, Myung-Ki Choi, Yong-Beom Lam, Pak Chung Deng, Wenmin Dong, Jianmin Du, Pengxiang Du, Xiaokai Duan, Kangda Fan, Xiaohua Gao, Wei Geng, Lisheng Ha, Eunja He, Xiao-Tao Hu, Jinniu Huang, Jingke Huang, Kun Huang, Yanan Huang, Zidan Da Hyung, Kim Chan, Hoi Yat Jiang, Xiaofei Kim, Seonghyun Kim, Youngman Lee, Chang-Hwan Lee, Jenny Li, Jian Li, Minglong Li, Zhipan Li, Zhengzheng Lian, Zhanjiang Liang, Haozhao Liu, Lang Lu, Xiao Liu, Zhi-Rui Meng, Jie Meng, Ziyan Mun, Myeong-Hwan Niu, Yifei Niu, Zhongming Pan, Cong Peng, Jing Qu, Xiaoying Papakonstantinou, Panagiota Shang, Tianshuai Shang, Xinle Shen, Caiwan Shen, Guofang Sun, Tingting Sun, Xiang-Xiang Wang, Sibo Wang, Tianyu Wang, Yiran Wang, Yuanyuan Wu, Jiawei Wu, Liang Wu, Xinhui Xia, Xuewei Xie, Huihui Yao, Jiangming Ip, Kwan Yau Yiu, To Chung Yu, Jianghan Yu, Yangyang Zhang, Kaiyuan Zhang, Shijie Zhang, Shuangquan Zhang, Wei Zhang, Xiaoyan Zhang, Yanxin Zhang, Ying Zhang, Yingxun Zhang, Zhenhua Zhao, Qiang Zhao, Yingchun Zheng, Ruyou Zhou, Chang Zhou, Shan-Gui Zou, Lianjian State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Beijing100871 China Department of Physics School of Science Tianjin University Tianjin300354 China School of Physics and Mechatronics Engineering Guizhou Minzu University Guiyang550025 China Department of Physics The University of Hong Kong Pokfulam999077 Hong Kong Institute Soongsil University Seoul06978 Korea Republic of Center for Innovative Physicist Education and Research Extreme Physics Institute Department of Physics Pusan National University Busan46241 Korea Republic of Department of Physics Beijing Normal University Beijing100875 China Institute of Modern Physics Chinese Academy of Sciences Lanzhou730000 China School of Physics University of Chinese Academy of Sciences Beijing100049 China College of Physics Jilin University Changchun130012 China School of Physical Science and Technology Southwest University Chongqing400715 China School of Physics and Microelectronics Zhengzhou University Zhengzhou450001 China School of Physics Beihang University Beijing102206 China Peng Huanwu Collaborative Center for Research and Education Beihang University Beijing100191 China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University Beijing102206 China Institute of Modern Physics Chinese Academy of Sciences Huizhou516000 China Department of Physics Hanyang University Seoul04763 Korea Republic of College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing210016 China School of Physics Nankai University Tianjin300071 China School of Nuclear Science and Technology Lanzhou University Lanzhou730000 China Department of Physics Origin of Matter and Evolution of Galaxy Institute Soongsil University Seoul06978 Korea Republic of Center for Exotic Nuclear Studies Institute for Basic Science Daejeon34126 Korea Republic of Department of Physics Graduate School of Science Th

The mass table in the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) with the PC-PK1 density functional has been established for even-Z nuclei with 8 ≤ Z ≤ 120, extended from the previous work for even-even nuclei [Zhang et al. (DRHBc Mass Table Collaboration), At. Data Nucl. Data Tables 144, 101488 (2022)]. The calculated binding energies, two-nucleon and one-neutron separation energies, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, quadrupole deformations, and neutron and proton Fermi surfaces are tabulated and compared with available experimental data. A total of 4829 even-Z nuclei are predicted to be bound, with an rms deviation of 1.433 MeV from the 1244 mass data. Good agreement with the available experimental odd-even mass differences, α decay energies, and charge radii is also achieved. The description accuracy for nuclear masses and nucleon separation energies as well as the prediction for drip lines is compared with the results obtained from other relativistic and nonrelativistic density functional. The comparison shows that the DRHBc theory with PC-PK1 provides an excellent microscopic description for the masses of even-Z nuclei. The systematics of the nucleon separation energies, odd-even mass differences, pairing energies, two-nucleon gaps, α decay energies, rms radii, quadrupole deformations, potential energy curves, neutron density distributions, and neutron mean-field potentials are discussed. Copyright © 2024, The Authors. All rights reserved.

关键词： Neutrons

来源：评论

学校读者我要写书评

暂无评论

Search for Cosmic-Ray Boosted Sub-GeV Dark Matter at the PandaX-II Experiment

引用

Physical Review Letters 2022年第17期128卷 171801-171801页

作者： Xiangyi Cui Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan Cheng Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Wenbo Ma Yugang Ma Yajun Mao Yue Meng Nasir Shaheed Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Zhou Wang Wei Wang Xiuli Wang Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Jijun Yang Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Dan Zhang Minzhen Zhang Peng Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou Shao-Feng Ge Qiang Yuan Tsung-Dao Lee Institute Shanghai Jiao Tong University Shanghai 200240 China School of Physics and Astronomy Shanghai Jiao Tong University MOE Key Laboratory for Particle Astrophysics and Cosmology Shanghai Key Laboratory for Particle Physics and Cosmology Shanghai 200240 China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213 China Yalong River Hydropower Development Company Limited 288 Shuanglin Road Chengdu 610051 China School of Physics Sun Yat-Sen University Guangzhou 510275 China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary Science Shandong University Qingdao 266237 Shandong China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong University Qingdao 266237 Shandong China School of Physics Nankai University Tianjin 300071 China Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) Institute of Modern Physics Fudan University Shanghai 200433 China School of Physics Peking University Beijing 100871 China School of Physics Beihang University Beijing 102206 China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University Beijing 102206 China School of Physics and Microelectronics Zhengzhou University Zhengzhou Henan 450001 China School of Medical Instrument and Food Engineering University of Shanghai for Science and Technology Shanghai 200093 China Department of Physics University of Maryland College Park Maryland 20742 USA School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei 230026 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China SJTU Paris Elite Institute of Technology Shanghai Jiao Tong University Shanghai 200240 China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese A

We report a novel search for the cosmic-ray boosted dark matter using the 100 tonne·day full dataset of the PandaX-II detector located at the China Jinping Underground Laboratory. With the extra energy gained from the cosmic rays, sub-GeV dark matter particles can produce visible recoil signals in the detector. The diurnal modulations in rate and energy spectrum are utilized to further enhance the signal sensitivity. Our result excludes the dark matter–nucleon elastic scattering cross section between 10−31 and 10−28 cm2 for dark matter masses from 0.1 MeV/c2 to 0.1 GeV/c2, with a large parameter space previously unexplored by experimental collaborations.

关键词： Cosmic rays & astroparticles Particle dark matter Weakly interacting massive particles

来源：评论

学校读者我要写书评

暂无评论

Localizing the Recurrent Laryngeal Nerve via Ultrasound with a Bayesian Shape Framework

arXiv

引用

arXiv 2022年

作者： Dou, Haoran Han, Luyi He, Yushuang Xu, Jun Ravikumar, Nishant Mann, Ritse Frangi, Alejandro F. Yap, Pew-Thian Huang, Yunzhi Institute for AI in Medicine School of Automation Nanjing University of Information Science and Technology Nanjing China Institute for AI in Medicine School of Artificial Intelligence Nanjing University of Information Science and Technology Nanjing China School of Computing University of Leeds Leeds United Kingdom School of Medicine University of Leeds Leeds United Kingdom Department of Radiology and Nuclear Medicine Radboud University Medical Centre Nijmegen Netherlands Netherlands West China Hospital of Sichuan University Chengdu China Department of Cardiovascular Sciences KU Leuven Leuven Belgium Department of Electrical Engineering KU Leuven Leuven Belgium Alan Turing Institute London United Kingdom University of North Carolina Chapel Hill United States

Tumor infiltration of the recurrent laryngeal nerve (RLN) is a contraindication for robotic thyroidectomy and can be difficult to detect via standard laryngoscopy. Ultrasound (US) is a viable alternative for RLN detection due to its safety and ability to provide real-time feedback. However, the tininess of the RLN, with a diameter typically less than 3 mm, poses significant challenges to the accurate localization of the RLN. In this work, we propose a knowledge-driven framework for RLN localization, mimicking the standard approach surgeons take to identify the RLN according to its surrounding organs. We construct a prior anatomical model based on the inherent relative spatial relationships between organs. Through Bayesian shape alignment (BSA), we obtain the candidate coordinates of the center of a region of interest (ROI) that encloses the RLN. The ROI allows a decreased field of view for determining the refined centroid of the RLN using a dual-path identification network, based on multi-scale semantic information. Experimental results indicate that the proposed method achieves superior hit rates and substantially smaller distance errors compared with state-of-the-art methods. © 2022, CC BY.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

Overview of Radon Background Correction technology for Airborne Gamma Spectrometry

Overview of Radon Background Correction Technology for Airbo...

引用

2019 3rd International Conference on Environmental and Energy engineering (IC3E 2019)

作者： Chenhao Zeng Wanchang Lai Xiaojie Feng Chen Fan Jinfei Wu Runqiu Gu The College of Nuclear Technology and Automation Engineering Chengdu University of Technology Dept.of Military Installation Army Logistical University of PLA School of Control Engineering Chengdu University of Information Technology

In radiometric measurements, the radiation characteristics of radon and its daughters will increase the detection background value and affect the detection results. Research institutes in various regions of the world have studied the effects of radon and its daughters, and have done a lot of work according to the special climate, geological conditions and characteristics of radioactive events in their regions. In the view of the influence of radon background in airborne gamma-ray spectrometry measurement, this paper summarizes the research results of radon background correction in gamma-ray spectrometry measurement from three aspects in the world scope: environmental radiation monitoring, radiation monitoring instruments and nuclear emergency monitoring. In the aspect of environmental radiation monitoring, the research unit mainly considers the climatic factors such as rainfall, temperature and humidity, atmospheric and hydrological changes and seasonal changes, geological factors such as altitude, mineral types, and measurement means such as alpha measurement and inverse derivation gamma measurement. In terms of radiation monitoring instruments, radon and its daughters are mainly considered to reduce the impact and improve the measurement accuracy. In the aspect of nuclear emergency monitoring, the main consideration is how to improve the accuracy of measurement and avoid false alarm. On this basis, the research trend and development direction of radon background correction in airborne gamma-ray spectrometry are put forward.

关键词： Overview of Radon Background Correction technology for Airborne Gamma Spectrometry Gamma

来源：评论

学校读者我要写书评

暂无评论

Study of Energy Measurement of Cosmic Ray Nuclei with LHAASO 37

Study of Energy Measurement of Cosmic Ray Nuclei with LHAASO

引用

37th International Cosmic Ray Conference, ICRC 2021

作者： Bai, Lu Liu, Hu Cao, Zhen Aharonian, F. An, Q. Axikegu Bai, L.X. Bai, Y.X. Bai, L.X. Bai, Y.X. Bao, Y.W. Bastieri, D. Bi, X.J. Bi, Y.J. Cai, H. Cai, J.T. Cao, Zhe Chang, J. Chang, J.F. Chen, B.M. Chen, E.S. Chen, J. Chen, Liang Chen, Liang Chen, Long Chen, M.J. Chen, M.L. Chen, Q.H. Chen, S.H. Chen, S.Z. Chen, T.L. Chen, X.L. Chen, Y. Cheng, N. Cheng, Y.D. Cui, S.W. Cui, X.H. Cui, Y.D. D’Ettorre Piazzoli, B. Dai, B.Z. Dai, H.L. Dai, Z.G. Danzengluobu della Volpe, D. Dong, X.J. Duan, K.K. Fan, J.H. Fan, Y.Z. Fan, Z.X. Fang, J. Fang, K. Feng, C.F. Feng, L. Feng, S.H. Feng, Y.L. Gao, B. Gao, C.D. Gao, L.Q. Gao, Q. Gao, W. Ge, M.M. Geng, L.S. Gong, G.H. Gou, Q.B. Gu, M.H. Guo, F.L. Guo, J.G. Guo, X.L. Guo, Y.Q. Guo, Y.Y. Han, Y.A. He, H.H. He, H.N. He, J.C. He, S.L. He, X.B. He, Y. Heller, M. Hor, Y.K. Hou, C. Hu, H.B. Hu, S. Hu, S.C. Hu, X.J. Huang, D.H. Huang, Q.L. Huang, W.H. Huang, X.T. Huang, X.Y. Huang, Z.C. Ji, F. Ji, X.L. Jia, H.Y. Jiang, K. Jiang, Z.J. Jin, C. Ke, T. Kuleshov, D. Levochkin, K. Li, B.B. Li, Cheng Li, Cong Li, F. Li, H.B. Li, H.C. Li, H.Y. Li, J. Li, K. Li, W.L. Li, X.R. Li, Xin Li, Xin Li, Y. Li, Y.Z. Li, Zhe Li, Zhuo Liang, E.W. Liang, Y.F. Lin, S.J. Liu, B. Liu, C. Liu, D. Liu, H. Liu, H.D. Liu, J. Liu, J.L. Liu, J.S. Liu, J.Y. Liu, M.Y. Liu, R.Y. Liu, S.M. Liu, W. Liu, Y. Liu, Y.N. Liu, Z.X. Long, W.J. Lu, R. Lv, H.K. Ma, B.Q. Ma, L.L. Ma, X.H. Mao, J.R. Masood, A. Min, Z. Mitthumsiri, W. Montaruli, T. Nan, Y.C. Pang, B.Y. Pattarakijwanich, P. Pei, Z.Y. Qi, M.Y. Qi, Y.Q. Qiao, B.Q. Qin, J.J. Ruffolo, D. Rulev, V. Sáiz, A. Shao, L. Shchegolev, O. Sheng, X.D. Shi, J.Y. Song, H.C. Stenkin, Yu.V. Stepanov, V. Su, Y. Sun, Q.N. Sun, X.N. Sun, Z.B. Tam, P.H.T. Tang, Z.B. Tian, W.W. Wang, B.D. Southwest Jiaotong University Xipu Campus Southwest Jiaotong University Chengdu611756 China Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China University of Chinese Academy of Sciences Beijing100049 China TIANFU Cosmic Ray Research Center Sichuan Chengdu China Dublin Institute for Advanced Studies 31 Fitzwilliam Place Dublin Ireland Max-Planck-Institut for Nuclear Physics P.O. Box 103980 Heidelberg69029 Germany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Anhui Hefei230026 China School of Physical Science and Technology School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu610031 China College of Physics Sichuan University Sichuan Chengdu610065 China School of Astronomy and Space Science Nanjing University Jiangsu Nanjing210023 China Center for Astrophysics Guangzhou University Guangdong Guangzhou510006 China School of Physics and Technology Wuhan University Hubei Wuhan430072 China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Jiangsu Nanjing210023 China Hebei Normal University Hebei Shijiazhuang050024 China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai200030 China Ministry of Education Tibet Lhasa850000 China National Astronomical Observatories Chinese Academy of Sciences Beijing100101 China Sun Yat-sen University Guangdong Zhuhai519000 China Dipartimento di Fisica dell’Università di Napoli `‘Federico II" Complesso Universitario di Monte Sant’Angelo via Cinthia Napoli80126 Italy School of Physics and Astronomy Yunnan University Yunnan Kunming650091 China D¡¯epartement de Physique Nucl¡¯eaire et Corpusculaire Facult¡¯e de Sciences Universit¡¯e de Gen‘eve 24 Quai

The Large High Altitude Air Shower Observatory (LHAASO) is a hybrid extensive air shower (EAS) array with an area of about 1 km2 at an altitude of 4410 m a.s.l. in Sichuan province, China. It contains three sub-detectors: 1 km2 array (KM2A) composed of 5195 electromagnetic particle detector (ED) and muon detector (MD);water Cerenkov detector array (WCDA) and 18 Wide Field-of-view Cerenkov Telescope Array (WFCTA). One of the main scientific goals is measuring the individual energy spectra of cosmic rays from ~30 TeV to a couple of EeV. The construction of the whole observatory will be completed by the end of 2021. In this paper, a new energy reconstruction method and result based on KM2A simulated nuclei events will be shown. © Copyright owned by the author(s).

关键词： Observatories

来源：评论

学校读者我要写书评

暂无评论

Study of longitudinal development of cosmic-ray induced air showers with LHAASO-WFCTA 37

Study of longitudinal development of cosmic-ray induced air ...

引用

37th International Cosmic Ray Conference, ICRC 2021

作者： Liu, Hu Cao, Zhen Aharonian, F. An, Q. Axikegu Bai, L.X. Bai, Y.X. Zhu, H. Zhu, K.J. Bao, Y.W. Bastieri, D. Bi, X.J. Bi, Y.J. Cai, H. Cai, J.T. Cao, Zhe Chang, J. Chang, J.F. Chen, B.M. Chen, E.S. Chen, J. Chen, Liang Zhu, F.R. Chen, Long Chen, M.J. Chen, M.L. Chen, Q.H. Chen, S.H. Chen, S.Z. Chen, T.L. Chen, X.L. Chen, Y. Cheng, N. Cheng, Y.D. Cui, S.W. Cui, X.H. Cui, Y.D. D’Ettorre Piazzoli, B. Dai, B.Z. Dai, H.L. Dai, Z.G. Danzengluobu della Volpe, D. Dong, X.J. Duan, K.K. Fan, J.H. Fan, Y.Z. Fan, Z.X. Fang, J. Fang, K. Feng, C.F. Feng, L. Feng, S.H. Feng, Y.L. Gao, B. Gao, C.D. Gao, L.Q. Gao, Q. Gao, W. Ge, M.M. Geng, L.S. Gong, G.H. Gou, Q.B. Gu, M.H. Guo, F.L. Guo, J.G. Guo, X.L. Guo, Y.Q. Guo, Y.Y. Han, Y.A. He, H.H. He, H.N. He, J.C. He, S.L. He, X.B. He, Y. Heller, M. Hor, Y.K. Hou, C. Hu, H.B. Hu, S. Hu, S.C. Hu, X.J. Huang, D.H. Huang, Q.L. Huang, W.H. Huang, X.T. Huang, X.Y. Huang, Z.C. Ji, F. Ji, X.L. Jia, H.Y. Jiang, K. Jiang, Z.J. Jin, C. Ke, T. Kuleshov, D. Levochkin, K. Li, B.B. Li, Cheng Li, Cong Li, F. Li, H.B. Li, H.C. Li, H.Y. Li, J. Li, K. Li, W.L. Li, X.R. Li, Xin Zuo, X. Li, Y. Li, Y.Z. Li, Zhe Li, Zhuo Liang, E.W. Liang, Y.F. Lin, S.J. Liu, B. Liu, C. Liu, D. Lia, H. Liu, H.D. Liu, J. Liu, J.L. Liu, J.S. Liu, J.Y. Liu, M.Y. Liu, R.Y. Liu, S.M. Liu, W. Liu, Y. Liu, Y.N. Liu, Z.X. Long, W.J. Lu, R. Lv, H.K. Ma, B.Q. Ma, L.L. Ma, X.H. Mao, J.R. Masood, A. Min, Z. Mitthumsiri, W. Montaruli, T. Nan, Y.C. Pang, B.Y. Pattarakijwanich, P. Pei, Z.Y. Qi, M.Y. Qi, Y.Q. Qiao, B.Q. Qin, J.J. Ruffolo, D. Rulev, V. Sáiz, A. Shao, L. Shchegolev, O. Sheng, X.D. Shi, J.Y. Song, H.C. Stenkin, Yu.V. Stepanov, V. Su, Y. Sun, Q.N. Sun, X.N. Sun, Z.B. Tam, P.H.T. Tang, Z.B. Tian, W.W. Wang, B.D. Wang, C. Southwest Jiaotong University Xipu Campus Southwest Jiaotong University Chengdu611756 China Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China University of Chinese Academy of Sciences Beijing100049 China TIANFU Cosmic Ray Research Center Sichuan Chengdu China Dublin Institute for Advanced Studies 31 Fitzwilliam Place 2 Dublin Ireland Max-Planck-Institut for Nuclear Physics P.O. Box 103980 Heidelberg69029 Germany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Anhui Hefei230026 China School of Physical Science and Technology School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu610031 China College of Physics Sichuan University Sichuan Chengdu610065 China School of Astronomy and Space Science Nanjing University Jiangsu Nanjing210023 China Center for Astrophysics Guangzhou University Guangdong Guangzhou510006 China School of Physics and Technology Wuhan University Hubei Wuhan430072 China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Jiangsu Nanjing210023 China Hebei Normal University Hebei Shijiazhuang050024 China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai200030 China Ministry of Education Tibet Lhasa850000 China National Astronomical Observatories Chinese Academy of Sciences Beijing100101 China Sun Yat-sen University Guangdong Zhuhai519000 China Dipartimento di Fisica dell’Università di Napoli `‘Federico II" Complesso Universitario di Monte Sant’Angelo via Cinthia Napoli80126 Italy School of Physics and Astronomy Yunnan University Yunnan Kunming650091 China D¡¯epartement de Physique Nucl¡¯eaire et Corpusculaire Facult¡¯e de Sciences Universit¡¯e de Gen‘eve 24 Qu

The Wide Field-of-view Cerenkov Telescope Array (WFCTA) is an important component of Large High Altitude Air Shower Observatory (LHAASO), which aims to measure the individual energy spectra of cosmic rays from ~30 TeV to a couple of EeV. The longitudinal development is one of the main tools to distinguish nuclei from each other. WFCTA is composed of 18 imaging air Cerenkov telescopes, each telescope has 32 × 32 pixels, covers a field of view 16o × 16o (each pixel corresponding to 0.5o × 0.5o). The first telescope started in operation since February 2019, up to now, there are 18 telescopes in operation. Cerenkov photon detected by different pixels were generated at different height (or different traversed material). The distribution of dN/dθ (θ is the angle between the direction of Cerenkov photon and the direction of primary particle) is reconstructed from the image of WFCTA to study the longitudinal development of the shower (similar to dN/dX). In this paper, the dN/dθ reconstructing method and the preliminary result on the particle identification power based on this method will be shown. © Copyright owned by the author(s).

关键词： Pixels

来源：评论

学校读者我要写书评

暂无评论

Event-based model-free sliding mode control for an inspection robot

Advanced Control for Applications: Engineering and Industria...

引用

Advanced Control for Applications: engineering and Industrial Systems 2020年第2期2卷

作者： Chen, Lin Duan, Haibin Dian, Songyi Hoang, Son School of Automation Science and Electrical Engineering Beihang University Beijing China Peng Cheng Laboratory Shenzhen China College of Electrical Engineering and Information Technology Sichuan University Chengdu China Vietnam National University of Forestry Hanoi Viet Nam

This article investigates the balance adjustment control of a power line inspection robot under the circumstance that (a) only the I/O information of the system is available and (b) the information is sampled aperiodically. To address the problem, an event-based model-free sliding mode control algorithm is proposed. The full-form dynamic linearization (FFDL) technique is first employed to approximate the original nonlinear system via an unknown pseudo-partial derivative (PPD) Jacobean matrix. Then, an observer is designed to obtain the update law of the PPD matrix using the aperiodically sampled I/O incremental data. Meanwhile, an event-triggered mechanism is presented to determine when the data can be delivered to the observer. A model-free sliding mode control framework combined with the established FFDL model, observer, and the event-triggered mechanism is designed. The stability of the closed-loop system and the scale of the controller's parameters are confirmed using the Lyapunov theorem. Simulation results demonstrate the effectiveness of the proposed control scheme. © 2020 John Wiley & Sons, Ltd.

关键词： Sliding mode control

来源：评论

学校读者我要写书评

暂无评论

Optimal Energy Allocation Against Denial-of-Service Attack in Cache-enabled Wireless Networks

Optimal Energy Allocation Against Denial-of-Service Attack i...

引用

IEEE Conference on Vehicular technology (VTC)

作者： Ruimeng Gan Yue Xiao Jinliang Shao Xiaotian Zhou Wei Xiang National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China Chengdu China School of Automation Engineering University of Electronic Science and Technology of China Chengdu China Science and Technology on Communication Networks Laboratory The 54th Research Institute of China Electronics Technology Group Corporation (CETC) Shijiazhuang China College of Science & Engineering James Cook University Cairns Australia

ISBN: (数字)9781728152073

ISBN: (纸本)9781728140537

In this paper, the security issue of cache-enabled wireless networks is considered, where data transmission from the small base station (SBS) to the user is interfered by denial-of-service (DoS) attacks. To deal with this type of DoS attacks, we firstly investigate the energy dispatch problem from the perspective of the SBS. We further establish an optimization model by using the average number of subfiles requested from the macro base station (MBS) to measure the system performance, and then present the corresponding algorithm to derive the optimal scheduler. Additionally, numerical simulations are carried out to validate the effectiveness of the proposed algorithm.

关键词： Jamming Wireless networks System performance Security Data communication Base stations

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：