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Intelligent Dynamic Heterogeneous Redundancy Architecture for IoT Systems

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china Communications 2024年第7期21卷 291-306页

作者： zhang han Wang Yu Liu Hao Lin Hongyu Chen Liquan School of Cyber Science and Engineering Southeast UniversityNanjing 211102China purple mountain Laboratories Nanjing 211111China ZTE Corporation Nanjing 210012China Carbon Peaking&Carbon Neutrality Application Technology R&D Institute Nanjing University of Posts and TelecommunicationsNanjing 210002China

The conventional dynamic heterogeneous redundancy(DHR)architecture suffers from the security threats caused by the stability differences and similar vulnerabilities among the *** overcome these challenges,we propose an intelligent DHR architecture,which is more feasible by intelligently combining the random distribution based dynamic scheduling algorithm(RD-DS)and information weight and heterogeneity based arbitrament(IWHA)*** the proposed architecture,the random distribution function and information weight are employed to achieve the optimal selection of executors in the process of RD-DS,which avoids the case that some executors fail to be selected due to their stability difference in the conventional DHR ***,through introducing the heterogeneity to restrict the information weights in the procedure of the IWHA,the proposed architecture solves the common mode escape issue caused by the existence of multiple identical error output results of similar *** experimental results characterize that the proposed architecture outperforms in heterogeneity,scheduling times,security,and stability over the conventional DHR architecture under the same conditions.

关键词： dynamic heterogeneous redundancy heterogeneity IoT security security defense

THE FRAGMENTS OF COMET HYAKUTAKE (C/1996 B2.

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紫金山天文台台刊 1998年第2期 55-58页

作者： Chen Dao-han Zhao Ai-di Wu Qin-di Song Yi Fan Yi-xin(purple {2. observatory, Academia Sinica , nanjing 2.0008, china )Sun Shou-sheng zhang Yan Sun Li-nan :(Qingdao Station of purple {2. observatory, Qingdao 2.6003, china)

Several fragments of Comet Hyakutake were observed in March and April of 1996. This leads to the impression that the splitting of Comet Hyakutake on a small scale occurred frequently. Data analysis points to a rotatio... 详细信息

关键词： Comet Hyakutake fragment rotation period.

Formation and growth of nanophase iron particles on the surface of Mercury revealed by experimental study

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Acta Geochimica 2024年第4期43卷 774-784页

作者： Ronghua Pang Yang Li Chen Li Pengfei zhang Zhuang Guo Sizhe Zhao han Yu Li Wang Chenxi Zhu Shuangyu Wang Kairui Tai Qinwei zhang Yuanyun Wen Rui Li Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyangChina University of chinese academy of Sciences BeijingChina Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefeiChina Institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijingChina State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacaoChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunmingChina State Key Laboratory of High Performance Ceramics and Superfi ne Microstructures Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiChina Laboratory for Space Environment and Physical Sciences Harbin Institute of TechnologyHarbinChina Research Center for Planetary Science College of Earth ScienceChengdu University of TechnologyChengduChina Key Laboratory of Planetary Sciences Purple Mountain ObservatoryChinese Academy of SciencesNanjingChina

Space weathering is a primary factor in altering the composition and spectral characteristics of surface materials on airless ***,current research on space weathering focuses mainly on the Moon and certain types of *** particular,the impacts of meteoroids and micrometeoroids,radiation from solar wind/solar flares/cosmic rays,and thermal fatigue due to temperature variations are being *** weathering produces various transformation products such as melted glass,amorphous layers,iron particles,vesicles,and solar wind *** in turn lead to soil maturation,changes in visible and near-infrared reflectance spectra(weakening of characteristic absorption peaks,decreased reflectance,increased near-infrared slope),and alterations in magnetism(related to small iron particles),collectively termed the“lunar model”of space weathering *** to the Moon and asteroids,Mercury has unique spatial environmental characteristics,including more intense meteoroid impacts and solar thermal radiation,as well as a weaker particle radiation environment due to the global distribution of its magnetic ***,the lunar model of space weathering may not apply to *** studies have extensively explored the eff ects of micrometeoroid ***,this work focuses on the eff ects of solar-wind particle radiation in global magnetic-field distribution and on the weathering transformation of surface materials on Mercury under prolonged intense solar *** the utilization of highvalence state,heavy ion implantation,and vacuum heating simulation experiments,this paper primarily investigates the weathering transformation characteristics of the major mineral components such as anorthite,pyroxene,and olivine on Mercury’s surface and compares them to the weathering transformation model of the *** experimental results indicate that ion implantation at room temperature is insufficient to generate np-Fe^(0)directly but

关键词： Mercury Space weathering Np-Fe^(0) Solar thermal radiation Solar wind

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彗木相撞的不可压缩分层流体模型

天文学报 2004年第2期45卷 176-185页

作者： K.zhang 陈道汉 C.Jones School of Mathematical Sciences University of ExeterExeterEX4 4QJUK 中国科学院紫金山天文台南京210008

提出了一个彗木相撞的线性模型。在这个模型中,将木星大气看作是一个分层的、不可压缩和无粘滞的流体层,而与撞击相联的引力波则由一个初始冲力所造成。采用初始冲压P(r,z,0)代替初始表面形变作为初始条件。发现这种做法使得问题的数... 详细信息

提出了一个彗木相撞的线性模型。在这个模型中,将木星大气看作是一个分层的、不可压缩和无粘滞的流体层,而与撞击相联的引力波则由一个初始冲力所造成。采用初始冲压P(r,z,0)代替初始表面形变作为初始条件。发现这种做法使得问题的数学处理更加方便,特别是在计算流体粒子的垂直位移和摄动势能方面,后者可以表为P(r,z,0)的有限傅立叶正弦和余弦变换。导出了一个联系彗星碰撞参数、木星大气参数和所设初始冲力之间的关系式。还对两种P(r,z,0)的假设形式分析地导出表面波波高。

关键词：休梅克-列维彗星木星碰撞卫星不可压缩分层流体模型

The Jiao Tong University Spectroscopic Telescope Project

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Astronomical Techniques and Instruments 2024年第1期1卷 16-30页

作者： JUST Team Chengze Liu Ying Zu Fabo Feng Zhaoyu Li Yu Yu Hua Bai Xiangqun Cui Bozhong Gu Yizhou Gu Jiaxin han Yonghui Hou Zhongwen Hu hangxin Ji Yipeng Jing Wei Li Zhaoxiang Qi Xianyu Tan Cairang Tian Dehua Yang Xiangyan Yuan Chao Zhai Congcong {2. Jun {2. Haotong {2. Pengjie {2. Yong {2. Yi Zhao Xianzhong Zheng Qingfeng Zhu Xiaohu Yang Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China Department of Astronomy School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China University of chinese academy of Sciences NanjingNanjing 211135China University of chinese academy of Sciences Beijing 101408China Lenghu Technology Innovation Industrial Park Management Committee Lenghu 817400China Shanghai Astronomical observatory Chinese Academy of SciencesShanghai 200030China Department of Astronomy University of Science and Technology of ChinaHefei 230026China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China purple mountain {2. Chinese Academy of SciencesNanjing 210023China

The Jiao Tong University Spectroscopic Telescope(JUST)is a 4.4-meter f/6.0 segmented-mirror telescope dedicated to spectroscopic *** JUST primary mirror is composed of 18 hexagonal segments,each with a diameter of 1.1 *** provides two Nasmyth platforms for placing science *** Nasmyth focus fits a field of view of 10′and the other has an extended field of view of 1.2.with correction optics.A tertiary mirror is used to switch between the two Nasmyth *** will be installed at a site at Lenghu in Qinghai Province,china,and will conduct spectroscopic observations with three types of instruments to explore the dark universe,trace the dynamic universe,and search for exoplanets:(1)a multi-fiber(2.00 fibers)medium-resolution spectrometer(R=4000-5000)to spectroscopically map galaxies and large-scale structure;(2.an integral field unit(IFU)array of 500 optical fibers and/or a long-slit spectrograph dedicated to fast follow-ups of transient sources for multi-messenger astronomy;(3)a high-resolution spectrometer(R~100000)designed to identify Jupiter analogs and Earth-like planets,with the capability to characterize the atmospheres of hot exoplanets.

关键词： Astronomical instrumentation Optical telescopes Large-scale structure of the universe Redshift surveys Time domain astronomy Exoplanet astronomy

Two-dimensional materials for future information technology: status and prospects

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Science china(Information Sciences) 2024年第6期67卷 1-147页

作者： Hao QIU Zhihao YU Tiange ZHAO Qi zhang Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO Yue HAO Jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG Ziyang HUANG Ali IMRAN Ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen SHU Litao SUN Yue SUN Quanyang TAO Zi-Ao TIAN Dong WANG Hao WANG Haomin WANG Jialong WANG Junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... School of Electronic Science and Engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Physics and Key Lab of Quantum Materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou Laboratory State Key Laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin Laboratory Department of Applied Physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano Physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical Engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2.) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2. materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2. materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2. materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2. material research.

关键词： two-dimensional (2.) materials information technology production technology standardization of characterization microelectronic devices optoelectronic devices multi-functional integration

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基于联邦半监督学习的流量分类方法

信息工程大学学报 2024年第1期25卷 92-99页

作者：孙重鑫陈博卜佑军张德升王涵信息工程大学河南郑州450001 网络通信与安全紫金山实验室江苏南京211100

为保护流量数据隐私,并针对服务器分布少量标注流量,客户端非独立同分布大量未标注流量且互不共享带来的模型难以聚合得到流量分类模型的问题,提出基于联邦半监督学习的流量分类方法来解决。采用参数分解策略,最小化有无监督学习任务间... 详细信息

为保护流量数据隐私,并针对服务器分布少量标注流量,客户端非独立同分布大量未标注流量且互不共享带来的模型难以聚合得到流量分类模型的问题,提出基于联邦半监督学习的流量分类方法来解决。采用参数分解策略,最小化有无监督学习任务间的互相干扰。利用客户端间一致性正则化最大化相似网段间客户端共识,解决多变小样本数据的学习问题。此外,在联邦学习参数传递过程中只传递稀疏化参数差异矩阵。实验结果表明,该方法能够在保证参与客户端流量数据隐私安全的前提下实现多方未标注流量的共享与学习,分类准确率达到91.86%,通信成本也得到明显改善。

关键词：流量分类深度学习联邦学习半监督学习

G32.: A Small-Amplitude Red Variable with a Period Near One Day

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chinese Journal of Astronomy and Astrophysics 2006年第5期6卷 517-520页

作者： Bao-An Yao Chang-Jun Shen Chun-Sheng zhang han-Ming Hu Qing Lin Shanghai Astronomical observatory Chinese Academy of Sciences Shanghai 200030 purple mountain {2. Chinese Academy of Sciences Nanjing 210008 National Astronomical Observatories / Yunnan observatory Chinese Academy of Sciences Kunming650011

G32. = A65 = L3314 （V = 13.83, B - V = 1.91） is a field star in the direction of the globular cluster M4. If we take E（B - V） = 0.40, then its （B - V）0 = 1.51, corresponding to a spectral type of K5Ⅲ if it is a giant star; or of dM2.if it is a dwarf. Observations at both the MSSSO and Yunnan observatory have shown that G32. is a new variable with peak to peak amplitude ≌ 0.05 mag in V. While it is not unusual for so red a star to be a variable, special attention must be paid to its short period of about one day. If the variability is due to pulsation, the spectral type and luminosity as well as effective temperature should be determined in order to compare it with Xiong＇s theory.

关键词： stars variables - stars individual (G32.)

Progress in Space Debris Research

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空间科学学报 2010年第5期30卷 516-518页

作者： Zhao Changyin zhang Wenxiang han Zengyao Wang Hongbo Key Laboratory of Space Object and Debris Observation Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 Shanghai academy of Spacefight Technology china academy of Space Technology

During recent years,A de-orbit disposal of SinoSat 2.satellite and the depletion of the residual propellant after SC/LV separation for all LM-4 series launch vehicles were carried *** Whipple Shields based on hypervelocity impact particles were *** observation and collision avoidance were *** main progress in space debris research will be introduced from three aspects:mitigation,spacecraft protection,observation and collision avoidance.

关键词：空间碎片鑫诺2.卫星超高速撞击运载火箭避免碰撞供应链推进剂航天器