作者机构：
[Jiang, Qian-Wen; Tan, Hua-Tang; Fang, Sen-Zhi; Wu, Qing-Lin; Li, Gao-Xiang; Dai, Yang] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Wu, Q.-L.] D;Department of Physics, China
关键词：
quantum optics;weak value;recycling
摘要：
Weak value amplification has shown its superiority in measurement of small physical effects. Here we introduce a signal-recycled weak-value-based velocity measurement strategy to decrease the attenuation of detected photons during the post-selection. Like the power-recycled scheme, we can improve the number of detected photons and signal-to-noise ratio of velocity by forming a cavity. However, optimal improvements of number of detected photons and signal-to-noise ratio cannot be obtained simultaneously in our signal-recycled scheme owing to the walk-off effect. Furthermore, we find that the reflected light is relatively strong compared with the power-recycled scheme, which may increase the collection-detection efficiency in prospective relevant experiment.
作者机构：
[Wu, Yanjie; Xiong, Jie; Lin, Hai; Wang, You] College of Physics Science and Technology, Central China Normal University, Wuhan;430079, China;School of Physics and Telecommunications, HuangGang Normal University, Huanggang;438000, China;[Deng, Feng] Science and Technology on Electromagnetic Compatibility Laboratory, China Ship Development and Design Centre, Wuhan
关键词：
Frequency selective rasorber;Frequency selective surface;Grating lobes;Miniaturized elements;Radar cross section
作者机构：
[Chen, Mingyue; Tang, Yiwen; Qi, Pengcheng; Wu, Hao; Sheng, Zhuwei; Gan, Xueling; Lu, Yu; Qin, Yaohua] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.;[Chen, Zhigang] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China.;[Lyu, Yizhi] Univ Toronto, Dept Mat Sci & Engn, 184 Coll St,M5S, Toronto, ON, Canada.
通讯机构：
[Yiwen Tang] I;Institute of Nano-Science and Technology, College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
摘要：
Transition metal phosphides and sulfides are considered to be promising electrode materials for super-capacitors due to their excellent electrochemical properties, and the construction of heterostructures is proved to be an effective strategy to improve the electrochemical performances of materials. Herein, curved and rough flake-like nitrogen-doped Ni2P/Ni-12 P-5/Ni3S2 heterostructure arrays on Ni foam are prepared successfully through gas-phase phosphorization, sulfurization and nitrogen doping simultaneously using Ni(OH)(2) nanosheets as precursors under low temperature. The fabricated electrode exhibits an ultrahigh areal capacitance of 19.57 F cm(-2) at current density of 2 mA cm(-2), and high-rate capabilities, showing excellent capacitance performance. The supercapacitor assembled with nitrogen-doped Ni2P/Ni-12 P-5/Ni3S2 as a positive electrode can achieve a maximum areal capacitance of 2.77 F cm(-2) with a maximum energy density of 0.984 mWh cm(-2). Besides, the supercapacitor has a capacitance retention rate of 110% after 5000 cycles at a large current density of 100 mA cm(-2), showing excellent cycling stability. This work demonstrates a rational design and tuned fabrication of composites of transition metal phosphides/sulfides for stable and high-rate energy storage. (C) 2021 Elsevier Ltd. All rights reserved.
作者机构：
[Li, Zhongnian; Xu, Hongbo; Wang, Ze] Department of Electronic and Information Engineering, Central China Normal University, Wuhan 430079, China;Author to whom correspondence should be addressed.;[Han, Zhiren; Huang, Wei] Wuhan Maritime Communication Research Institute (WMCRI), Wuhan 430079, China;[Zhao, Li] Department of Electronic and Information Engineering, Central China Normal University, Wuhan 430079, China<&wdkj&>Author to whom correspondence should be addressed.
通讯机构：
[Li Zhao] D;Department of Electronic and Information Engineering, Central China Normal University, Wuhan 430079, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
Federated learning;Imperfect channel state information;Intelligent reflector surfaces;Outage probability
作者机构：
[Jia, Ya] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Inst Biophys, Wuhan 430079, Peoples R China.
通讯机构：
[Ya Jia] D;Department of Physics and Institute of Biophysics, Central China Normal University, Wuhan 430079, China
关键词：
Phase synchronization;Multiple time delays;Bounded noises;Coupled FHN neuronal models
摘要：
Noise and time-delays are ubiquitous in physical and biological systems. In this paper, the multiple time delays coupled FitzHugh-Nagumo (FHN) models is employed to investigate the synchronization mode transition. The orbital projection method is used to study the difference of membrane potential between two FHN neurons in the phase plane, and a measure of anti-phase is defined to characterize the synchronization state of neural system. It is shown that the synchronization mode of coupled neurons is different while changing the parameters of the system. In the absence of noise, as the coupling strength increases, the firing mode of two coupled neurons undergoes a succession of transitions (i.e., from the asynchronous state, to the completely synchronized state, then the anti-phase state, and finally to the completely synchronized state again). In the presence of noise, the synchronization mode of neurons becomes more diversified with the increasing of noise intensity. Moreover, by changing the time-delay and coupling strength, the sensitivity of two-neuron to noise can be changed, thereby the synchronization mode transition can be adjusted. (c) 2021 Elsevier Ltd. All rights reserved.
作者机构：
[Gilroy, Kyle D.; Cheng, Haoyan; Xia, Younan] Georgia Inst Technol, Wallace H Coulter Dept Biomed Engn, Atlanta, GA 30332 USA.;[Gilroy, Kyle D.; Cheng, Haoyan; Xia, Younan] Emory Univ, Atlanta, GA 30332 USA.;[Cheng, Haoyan; Zhu, Zhihong] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Hubei, Peoples R China.;[Xie, Minghao; Zhou, Shan; Xia, Younan] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
通讯机构：
[Prof. Younan Xia] T;The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, 30332 USA<&wdkj&>School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, 30332 USA
作者机构：
[Li, Xiu; Chen, Chen; Zhang, Faqiang; Yi, Zhiguo; Fang, Hanliang] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China.;[Li, Xiu; Huang, Xintang] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.;[Li, Xiu] Henan Univ Engn, Henan Key Lab Elect Ceram Mat & Applicat, Zhengzhou 451191, Peoples R China.
通讯机构：
[Xintang Huang] I;[Zhiguo Yi] S;State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China<&wdkj&>Institute of Nanoscience and Nanotechnology, College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
作者机构：
[Wang, Qun; Peng, Hao-Hao] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Peoples R China.;[Wang, Qun; Peng, Hao-Hao] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China.;[Wang, Qun; Peng, Hao-Hao] Peng Huanwu Ctr Fundamental Theory, Hefei 230026, Peoples R China.;[Zhang, Jun-Jie] Northwest Inst Nucl Technol, Xian 710024, Peoples R China.;[Sheng, Xin-Li] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
通讯机构：
[Sheng, Xin-Li] C;Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
作者机构：
[Luo, Jing; Tian, Yuan] Jingchu University of Technology, Academy of Electronic and Information Engineering, Jingmen;448000, China;[Chen, Xue; Zhang, Hongrui] Central China Normal University, Department of Electronics and Information Engineering, Wuhan;430079, China;[Luo, Jing; Tian, Yuan] 448000, China
期刊：
Computational and Structural Biotechnology Journal,2020年18:3762-3765 ISSN：2001-0370
通讯作者：
Zhao, Yunjie
作者机构：
[Zhao, Yunjie] Cent China Normal Univ, Inst Biophys, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Zhao, Yunjie] C;Cent China Normal Univ, Inst Biophys, Wuhan 430079, Peoples R China.
作者机构：
[Yang, Lijian] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Inst Biophys, Wuhan 430079, Peoples R China.
通讯机构：
[Jia, Ya] C;Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
关键词：
Statistical and Nonlinear Physics
摘要：
Both time delay and coupling form are the most important factors in neural networks. The properties of firing rate oscillation and cluster synchronization induced by time delay are studied in random network of different coupling neurons. In previous work, the firing rate oscillation of cortical network was observed at the presence of three factors (time delay, weak sinusoidal signal, and noise). Here, we found that the firing rate oscillation can be induced only by the time delay, and the spike train can be propagated at a certain interval time, which is consistent with the value of delay time. Furthermore, the phenomenon of cluster synchronization occurs in random network, which may originates from network structure, and this connection between the neurons trigger spikes within a time-restricted window, resulting in cluster synchronization between corresponding neurons. These numerical results provide a potential theoretical basis for certain pathological brain rhythms associated with epileptic seizures.
