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32 results on '"Deng, Yushan"'

5. A Novel Visible Light Communication System Based on a SiPM Receiver

Author

Deng, Zhenzhou, Ling, Liang, Deng, Yushan, Han, Chunlei, Yu, Lisu, Cao, Guojun, Wang, Yuhao, 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, 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, and Ma, Maode, editor

Published
2022
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12. SCAN: Spatiotemporal Cloud Atlas for Neural cells

Author

Deng, Yushan, primary, Lu, Yubao, additional, Li, Mengrou, additional, Shen, Jiayi, additional, Qin, Siying, additional, Zhang, Wei, additional, Zhang, Qiang, additional, Shen, Zhaoyang, additional, Li, Changxiao, additional, Jia, Tengfei, additional, Chen, Peixin, additional, Peng, Lingmin, additional, Chen, Yangfeng, additional, Zhang, Wensheng, additional, Liu, Hebin, additional, Zhang, Liangming, additional, Rong, Limin, additional, Wang, Xiangdong, additional, and Chen, Dongsheng, additional

Published
2023
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14. Multiband transport enables thermoelectric enhancements in the SrMg2Bi2 compound.

Author

Zhang, Yin, Deng, Yushan, Xiong, Rui, Cheng, Kun, Chen, Bo, Wen, Cuilian, Cao, Kaiyan, and Li, Wen

Subjects
*ACOUSTIC phonons, *CARRIER density, *THERMOELECTRIC materials, *SOUND wave scattering, *PHONON scattering
Abstract

A small energy offset (ΔE < 0.2 eV) between Γ(pxy) and Γ(pz) band orbitals in AB2X2 Zintl compounds enables the realization of band alignment for an increased band degeneracy as well as an enhanced electronic performance. The SrMg2Bi2 Zintl compound has been theoretically illustrated to have a small ΔE, suggesting an approximately inherent convergence of two band orbitals. Therefore, this work is devoted to the revelation of the thermoelectric potential of the SrMg2Bi2 Zintl compound in a broad Hall carrier concentration of 0.3–5 × 1019 cm−3 by Ag-doping at the Sr site. The electrical transport properties can be well predicted by the single parabolic band model with acoustic phonon scattering, which reveals a multi-band transporting behavior in the heavily doped samples due to Fermi level deepening, leading to a significant zT-enhancement. In terms of the model, a peak zT of up to 1.0 is achievable by assuming the amorphous minimum lattice thermal conductivity, which demonstrates this compound as a promising thermoelectric material. [ABSTRACT FROM AUTHOR]

Published
2022
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15. SCAN: Spatiotemporal Cloud Atlas for Neural cells.

Author

Deng, Yushan, Lu, Yubao, Li, Mengrou, Shen, Jiayi, Qin, Siying, Zhang, Wei, Zhang, Qiang, Shen, Zhaoyang, Li, Changxiao, Jia, Tengfei, Chen, Peixin, Peng, Lingmin, Chen, Yangfeng, Zhang, Wensheng, Liu, Hebin, Zhang, Liangming, Rong, Limin, Wang, Xiangdong, and Chen, Dongsheng

Published
2024
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20. Pileup Scintillation Pulses Processing using Expectation Maximization Deconvolution

Author

Cao Xiangzhu, Haijie Ding, Xin Zhao, Deng Zhenzhou, Deng Yushan, and Ka-Veng Yuen

Subjects
Physics, Scintillation, 010308 nuclear & particles physics, Clipping (signal processing), business.industry, Detector, 01 natural sciences, Particle detector, 030218 nuclear medicine & medical imaging, Convolution, 03 medical and health sciences, 0302 clinical medicine, Optics, 0103 physical sciences, Digital storage oscilloscope, Deconvolution, business, Energy (signal processing)
Abstract

Radiation detectors often work at high count rates, therefore experiencing a high fraction of pileup. Pileup is the situation of two or more pulses partly or completely overlapping. Pileup effects cause that the energy of each single pulse is harder to be precisely obtained at high count rates. Consequently, it makes the energy resolution (ER) of the detector system degenerate. In this paper, we propose an expectation maximization deconvolution (EMD) method for processing pileup events and recovering the energy of each single pulse. EMD not only has non-negative property and energy conservation, but is independent of the pulses shape. We employ this method to recover pileup events accurately in iteration formation. Specifically, in this method, we first derived an event pulse function to express the average scintillation pulse, then the pileup events signal is constructed as a convolution model. Based on this convolution model, we solve the problem using EM iteration. Lastly, energies are calculated from the separated pulse after EM iteration. To evaluate the performance of EMD, we set up one gamma ray detector utilizing an LYSO crystal and a CR105 photomultiplier tube (PMT). Scintillation pulses are directly read out by a digital storage oscilloscope with high sample rates. For single pulses, measured energies using our EMD method are almost equal to that of the digital gate integrator (DGI). For pileup pulses, the ER obtained by EMD, DGI and the digital delay-line clipping (DDLC) is 16.31%, 29.05%, 19.08% at 511keV, respectively, which illustrates EMD is obviously preferable to that of well-established methods.

Published
2020
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31. Nuclear Power: An Effective Alternative for Global Climate Battle.

Author

Wang Shang, Ma Qian, and Deng Yushan

Subjects
*INTERNATIONAL cooperation in the nuclear industry, *INTERNATIONAL cooperation on climate change, *NUCLEAR power plants
Abstract

The article reports on the significant of nuclear power as an alternative solution to the global climate challenge, citing the opening of the nuclear security center in southeast Beijing in China as part of the China-U.S. nuclear security cooperation.

Published
2016

32. Nuclear Security Cooperation in the Post-Nuclear Security Summit Era.

Author

Huangyin Jiazi, Wang Bowen, and Deng Yushan

Subjects
*INTERNATIONAL cooperation on international cooperation, *INTERNATIONAL cooperation on nuclear weapons
Abstract

The article reports on the roles and implication of the Nuclear Security Summit (NSS) led by the International Atomic Energy Agency (IAEA) considering the challenges related to nuclear resources and terrorism, citing how it promote the international awareness related to the nuclear issue.

Published
2016

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