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Memory Behaviors Based on ITO/Graphene Oxide/Al Structure

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Chinese Physics Letters 2015年第7期32卷 138-141页

作者：仪明东郭佳林胡波夏先海范曲立解令海黄维 Key Laboratory for Organic electronics and Information Displays & institute of Advanced Materials diangsu National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts & Telecommunications Nanjing 210023 Key Laboratory of Flexible electronics & institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816

We investigate the memory properties of the ITO/graphene oxide/Al diodes. It is found that the devices show different memory behaviors with the diverse geometry and thickness of Al. When the thickness of the Al electrode is relatively thick, the device of the cross-point Al electrode shows a three-level memory effect, and the counterpart device of the cross-bar Al electrode exhibits a volatile static random access memory effect. When the thickness of the AI electrode is thinner, the above devices demonstrate a flash memory effect. The different memory behaviors of ITO/GO/AI diodes are ascribed to the mode and degree of reduction and oxidation of GO.

关键词： GO Memory Behaviors Based on ITO/Graphene Oxide/Al Structure ITO Al

Back-n white neutron source at CSNS and its applications

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Nuclear Science and Techniques 2021年第1期32卷 95-104页

作者： Jing-Yu Tang Qi An Jiang-Bo Bai Jie Bao Yu Bao Ping Cao Hao-Lei Chen Qi-Ping Chen Yong-Hao Chen Zhen Chen Zeng-Qi Cui Rui-Rui Fan Chang-Qing Feng Ke-Qing Gao Xiao-Long Gao Min-Hao Gu Chang-Cai Han Zi-Jie Han Guo-Zhu He Yong-Cheng He Yang Hong Yi-Wei Hu Han-Xiong Huang Xi-Ru Huang Hao-Yu Jiang Wei Jiang Zhi-Jie Jiang Han-Tao Jing Ling Kang Bo Li Chao Li Jia-Wen Li Qiang Li Xiao Li Yang Li Jie Liu Rong Liu Shu-Bin Liu Xing-Yan Liu Ze Long Guang-Yuan Luan Chang-Jun Ning Meng-Chen Niu Bin-Bin Qi Jie Ren Zhi-Zhou Ren Xi-Chao Ruan Zhao-Hui Song Kang Sun Zhi-Jia Sun Zhi-Xin Tan Xin-Yi Tang Bin-Bin Tian Li-Jiao Wang Peng-Cheng Wang Zhao-Hui Wang Zhong-Wei Wen Xiao-Guang Wu Xuan Wu Li-Kun Xie Xiao-Yun Yang Yi-Wei Yang Han Yi Li Yu Tao Yu Yong-Ji Yu Guo-Hui Zhang Lin-Hao Zhang Qi-Wei Zhang Xian-Peng Zhang Yu-Liang Zhang Zhi-Yong Zhang Lu-Ping Zhou Zhi-Hao Zhou Ke-Jun Zhu 无 State Key Laboratory of Particle Detection and electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Northwest institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and electronics University of Science and Technology of ChinaHefei 230026China The CSNS Back-n Collaboration

Back-streaming neutrons from the spallation target of the China Spallation Neutron Source(CSNS)that emit through the incoming proton channel were exploited to build a white neutron beam facility(the so-called Back-n white neutron source),which was completed in March *** Back-n neutron beam is very intense,at approximately 29107 n/cm2/s at 55 m from the target,and has a nominal proton beam with a power of 100 kW in the CSNS-I phase and a kinetic energy of 1.6 GeV and a thick tungsten target in multiple slices with modest moderation from the cooling water through the *** addition,the excellent energy spectrum spanning from 0.5 eV to 200 MeV,and a good time resolution related tothe time-of-flight measurements make it a typical white neutron source for nuclear data measurements;its overall performance is among that of the best white neutron sources in the *** with advanced spectrometers,detectors,and application utilities,the Back-n facility can serve wide applications,with a focus on neutron-induced cross-sectional *** article presents an overview of the neutron beam characteristics,the experimental setups,and the ongoing applications at Backn.

关键词： White neutron source Nuclear data measurements Experimental setups Neutron applications

新型有机硅基离子塑晶材料作为固态电解质用于锂离子电池（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2016年第2期17卷 155-162页

作者： Xin-yue ZHAO Jing-lun WANG Hao LUO Hu-rong YAO Chu-ying OUYANG Ling-zhi ZHANG Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionChinese Academy of Sciences College of Physics and Communication electronics Jiangxi Normal University

目的:合成新型的有机硅基离子塑晶材料[DTMA][TFSI],测试材料的物理和电化学性能,研究其掺杂改性并作为固态电解质用于锂离子电池。创新点:1.合成新型的有机硅基离子型塑晶材料;2.将三元复合塑晶材料作为固态电解质在室温下用于锂离子... 详细信息

目的:合成新型的有机硅基离子塑晶材料[DTMA][TFSI],测试材料的物理和电化学性能,研究其掺杂改性并作为固态电解质用于锂离子电池。创新点:1.合成新型的有机硅基离子型塑晶材料;2.将三元复合塑晶材料作为固态电解质在室温下用于锂离子电池。方法:1.通过热性能分析,得到材料的塑晶温度区间和融化熵值(图1和表1);2.通过电导率测试,确定塑晶掺杂对导电性能的影响(图2);3.通过对扣式电池的充放电性能、倍率性能、循环性能以及阻抗的测试(图4~7),得到塑晶复合物作为固态电解质的电化学性能以及电池循环的稳定性和可逆性。结论:1.合成新型有机硅基离子塑晶材料[DTMA][TFSI],塑晶温度区间为–26°C到54°C;2.在纯塑晶IPC中添加10% LiODFB和10%PC,得到复合物的电导率为1×10^(-4) S/cm,提高塑晶作为固态电解质在室温下应用的可行性;3.将复合物用于LiFePO_4/Li半电池测试,在C/20倍率下,电池的放电比容量为144 mA·h/g,库伦效率为99%。在50次循环后,容量保持率为94%;4.测试结果表明,新型有机硅基离子塑晶的复合物可作为固态电解质材料应用于锂离子电池,以及更高能量密度的锂-硫和锂-空电池。

关键词：有机硅离子塑晶固态电解质锂离子电池

Frequency-tunable transmon in a three-dimensional copper cavity

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Chinese Physics B 2015年第11期24卷 81-84页

作者：潘佳政曹志敏范云益周渝兰栋刘宇浩陈志平李永超曹春海许伟伟康琳陈健于海峰于扬孙国柱吴培亨 National Laboratory of Solid State Microstructures and Research institute of Superconductor electronics School of Electronic Science and Engineering Nanjing University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China National Laboratory of Solid State Microstructures School of Physics Nanjing University

We have realized a frequency-tunable transmon in a three-dimensional cooper cavity using a direct current supercon- ducting quantum interference device. Both the transition frequency of the transmon and the frequency of the dressed cavity can be varied with the applied external flux bias, which are well consistent with the theoretical model. The range of the variable transition frequency is from 5.188 GHz to 7.756 GHz. The energy relaxation time of the transmon is hundreds of nanoseconds.

关键词： superconducting qubit three-dimensional transmon tunable transmon dc-superconducting quantum interference device

Laser measurement system for acrylic transmittance of JUNO central detector

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Radiation Detection Technology and Methods 2021年第3期5卷 356-363页

作者： Zhaohan Li Xiaoyu Yang Yuekun Heng Xiaoyan Ma Xiaohui Qian Kaixi Huang Zhi Wu Wei He Meihang Xu Xiaolan Luo Yatian Pei Mengzhao Li Zhiyan Cai Wenlu Wei Yifang Wang institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Particle Detection and electronics Beijing 100049China University of Chinese Academy of Science Beijing 100049China

Background During the research phase of acrylic panel for the Jiangmen Underground Neutrino Observatory(JUNO)central detector(CD),the darkroom transmittance measurement system(DTMS)was designed and built,and a massive amount of measurements were carried out to help determine the composition and processing techniques of the acrylic *** The mass production of acrylic panels was started after the pilot *** requirement of transmittance measurement put forward new demands on operation,and a new measurement system was considered to support removable and non-destructive measurement on *** After the accomplishment of design,development and verification were completed,the laser measurement system came into use in the acrylic workshop of Taixing Donchamp Acrylic Ltd,and the transmittance results of acrylic spherical panels met the requirement of *** optical design,tooling design,data processing interface and uncertainty analyses of the laser measurement system are discussed in detail,and the measured transmittance results are also introduced in this article.

关键词： Laser Non-destructive measurement Transmittance JUNO

Simultaneous Solutions to Fixed Point and Minimax-Type Inequality Problems

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Acta Mathematica Sinica,English Series 1993年第4期9卷 352-366页

作者：江嘉禾 Department of Mathematics University of Electronics Science and TechnologyChengduChina

In the present paper there are given some existence theorems on simultaneous solu-tions to fixed point and minimax-type inequality problems,hence to fixed point and variational-type inequality problems.

关键词： Simultaneous Solutions to Fixed Point and Minimax-Type Inequality Problems

Measurement-device-independent quantum secret sharing with hyper-encoding

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Chinese Physics B 2022年第10期31卷 307-313页

作者： Xing-Xing Ju Wei Zhong Yu-Bo Sheng Lan Zhou College of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China College of Electronic and Optical Engineering&College of Flexible electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China

Quantum secret sharing(QSS) is a typical multi-party quantum communication mode, in which the key sender splits a key into several parts and the participants can obtain the key by cooperation. Measurement-device-independent quantum secret sharing(MDI-QSS) is immune to all possible attacks from measurement devices and can greatly enhance QSS's security in practical applications. However, previous MDI-QSS's key generation rate is relatively low. Here, we adopt the polarization-spatial-mode hyper-encoding technology in the MDI-QSS, which can increase single photon's channel capacity. Meanwhile, we use the cross-Kerr nonlinearity to realize the complete hyper-entangled Greenberger-Horne-Zeilinger state analysis. Both above factors can increase MDI-QSS's key generation rate by about 10^(3). The proposed hyper-encoded MDI-QSS protocol may be useful for future multiparity quantum communication applications.

关键词： measurement-device-independent quantum secret sharing hyper-encoding technology cross-Kerr nonlinearity hyper-entangled Greenberger-Horne-Zeilinger state analysis

Mechanical properties of QFP micro-joints soldered with lead-free solders using diode laser soldering technology

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中国有色金属学会会刊：英文版 2008年第4期18卷 814-818页

作者：韩宗杰薛松柏王俭辛张昕张亮禹胜林王慧 College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016ChinaThe 14th Research InstituteChina Electronics Technology Group CorporationNanjing 210013China

Soldering experiments of quad flat package(QFP) devices were carried out by means of diode laser soldering system with Sn-Ag-Cu and Sn-Cu-Ni lead-free solders, and competitive experiments were also carried out not only with Sn-Pb eutectic solders but also with infrared reflow soldering method. The results indicate that under the conditions of laser continuous scanning mode as well as the fixed laser soldering time, an optimal power exists, while the optimal mechanical properties of QFP micro-joints are gained. Mechanical properties of QFP micro-joints soldered with laser soldering system are better than those of QFP micro-joints soldered with IR reflow soldering method. Fracture morphologies of QFP micro-joints soldered with laser soldering system exhibit the characteristic of tough fracture, and homogeneous and fine dimples appear under the optimal laser output power.

关键词：无铅焊料二极管激光软钎焊微观结构机械性能

A real-time neutron-gamma discriminator based on the support vector machine method for the time-of-flight neutron spectrometer

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Plasma Science and Technology 2018年第4期20卷 170-175页

作者：张伟吴彤宇郑博文李世平张轶泼阴泽杰 State Key Laboratory of Particle Detection and electronics University of Science and Technology ofChina Hefei 230026 People's Republic of China Department of Modem Physics University of Science and Technology of China Hefei 230026 People'sRepublic of China Southwestern institute of Physics Chengdu 610041 People's Republic of China

A new neutron-gamma discriminator based on the support vector machine(SVM) method is proposed to improve the performance of the time-of-flight neutron spectrometer. The neutron detector is an EJ-299-33 plastic scintillator with pulse-shape discrimination(PSD) property. The SVM algorithm is implemented in field programmable gate array(FPGA) to carry out the real-time sifting of neutrons in neutron-gamma mixed radiation fields. This study compares the ability of the pulse gradient analysis method and the SVM method. The results show that this SVM discriminator can provide a better discrimination accuracy of 99.1%. The accuracy and performance of the SVM discriminator based on FPGA have been evaluated in the experiments. It can get a figure of merit of 1.30.

关键词： plasma diagnosis support vector machine pulse-shape discrimination TOF spectrometer