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Cross-layer all-interface defect passivation with pre-buried additive toward efficient all-inorganic perovskite solar cells

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Carbon energy 2024年第9期6卷 283-291页

作者： Qiurui Wang Jingwei Zhu Yuanyuan Zhao Yijie chang Nini Hao zhe Xin Qiang Zhang Cong {2. Hao Huang Qunwei Tang College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdaoChina College of Materials Science and Engineering Sichuan UniversityChengduChina Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials School of ResourcesEnvironment and MaterialsGuangxi UniversityNanningChina institute of Carbon Neutrality College of Chemical and Biological EngineeringShandong University of Science and TechnologyQingdaoChina

The buried interface in the perovskite solar cell(PSC)has been regarded as a breakthrough to boost the power conversion efficiency and ***,a comprehensive manipulation of the buried interface in terms of the transport layer,buried interlayer,and perovskite layer has been largely ***,we propose the use of a volatile heterocyclic compound called 2.thiopheneacetic acid(TPA)as a pre-buried additive in the buried interface to achieve cross-layer all-interface defect passivation through an in situ bottom-up infiltration diffusion *** not only suppresses the serious interfacial nonradiative recombination losses by precisely healing the interfacial and underlying defects but also effectively enhances the quality of perovskite film and releases the residual strain of perovskite *** to this versatility,TPA-tailored CsPbBr3 PSCs deliver a record efficiency of 11.2.% with enhanced long-term *** breakthrough in manipulating the buried interface using TPA opens new avenues for further improving the performance and reliability of PSC.

关键词： buried interfaces charge recombination defect passivation inorganic perovskite solar cells strain relaxation

基于标准特征多项式的变电站光储直柔系统双向AC/DC变换器控制策略

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电网与清洁能源 2024年第5期40卷 119-129页

作者：周贤富楼平陈哲陈家乾赵崇娟齐蓓柯吉国网浙江省电力有限公司湖州供电公司浙江湖州313000 国网浙江省电力有限公司浙江杭州310000 湖州电力设计院有限公司浙江湖州313000 国网电力科学研究院武汉能效测评有限公司湖北武汉430000 长安大学能源与电气工程学院陕西西安710018

为增强变电站光储直柔系统的可靠性,针对其在并网过程中会对变电站电能质量造成不良影响,以及现有设计方法难于工程化问题提出了一种面向工程化的基于标准特征多项式配置方法(SCP)的双向AC/DC变换器控制策略。通过建立变电站光储直柔(PE... 详细信息

为增强变电站光储直柔系统的可靠性,针对其在并网过程中会对变电站电能质量造成不良影响,以及现有设计方法难于工程化问题提出了一种面向工程化的基于标准特征多项式配置方法(SCP)的双向AC/DC变换器控制策略。通过建立变电站光储直柔(PEDF)系统变换器的数学模型,并分析控制器参数对变换器在不同运行模式下的电能质量的影响,然后采用SCP方法来配置闭环系统特征值,分析该方法对抑制并网电流谐波、改善AC/DC变换器并网电能质量的作用,最后对此进行仿真分析并和传统PI控制器效果进行比较,结果表明:所提策略降低了AC/DC变换器在谐波畸变率和并网电流不对称度,系统设计简便,且具有很好地鲁棒性,适合工程实践。

关键词：光储直柔变电站 AC/DC双向变换器 SCP 电压电流双环控制

Measurement and analysis of K-shell lines of silicon ions in laser plasmas

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high Power Laser Science and Engineering 2018年第2期6卷 133-140页

作者： Bo Han Feilu Wang Jiayong Zhong Guiyun Liang Huigang Wei Dawei Yuan Baojun Zhu Fang Li chang Liu Yanfei Li Jiarui Zhao zhe Zhang {2. Wang Jun Xiong Guo Jia Neng Hua Jianqiang Zhu Yutong Li Gang Zhao Jie Zhang Department of Astronomy Beijing Normal University Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences IFSA Collaborative Innovation Center Shanghai Jiao Tong University National Laboratory for Condensed Matter physics Institute of Physics Chinese Academy of Sciences Research Center for Laser Fusion China Academy of Engineering Physics National Laboratory on high Power Laser and physics Chinese Academy of Sciences Key Laboratory for Laser Plasmas (MoE) and Department of physics and Astronomy Shanghai Jiao Tong University

We present laboratory measurement and theoretical analysis of silicon K-shell lines in plasmas produced by Shenguang II laser facility, and discuss the application of line ratios to diagnose the electron density and temperature of laser *** types of shots were carried out to interpret silicon plasma spectra under two conditions, and the spectra from 6.6 ?A to6.85 ?A were measured. The radiative-collisional code based on the flexible atomic code(RCF) is used to identify the lines, and it also well simulates the experimental spectra. Satellite lines, which are populated by dielectron capture and large radiative decay rate, influence the spectrum profile significantly. Because of the blending of lines, the traditional G value and R value are not applicable in diagnosing electron temperature and density of plasma. We take the contribution of satellite lines into the calculation of line ratios of He-α lines, and discuss their relations with the electron temperature and density.

关键词： high energy density {2. laser plasmas interaction plasmas astrophysics

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun {2. Yue {2. zhe {2. Xinyuan {2. Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin chen Danping chen Fuqing chen Fusan chen Gang chen Guoming chen Hua-Xing chen Huirun chen Jinhui chen Ji-Yuan chen Kai chen Mali chen Mingjun chen Mingshui chen Ning chen Shanhong chen Shanzhen chen Shao-Long chen Shaomin chen Shiqiang chen Tianlu chen Wei chen Xiang chen Xiaoyu chen Xin chen Xun chen Xurong chen Ye chen Ying chen Yukai chen Zelin chen Zilin chen Gang chen Boping chen Chunhui chen Hok Chuen cheng Huajie cheng Shan cheng Tongguang cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research institute Co. LtdBeijing Beijing institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker institute of Nuclear physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering {2. MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china institute of Atomic {2. Beijing china Jiliang University HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china University of Geosciences Beijing china University of Geosciences WuhanHubei china University of Mining and Technology XuzhouJiangsu china West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint institute for Nuclear Research(DLNP JINR) Dubna East china University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2.s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2.15)and the Conceptual Design Report(CDR,2.18),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2.2.-2.2.,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2.30s.

关键词： initiated exceeding precise

基于Meta-analysis的新疆主要作物地膜覆盖产量及水分利用效率分析

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生态学杂志 2022年第4期41卷 661-667页

作者：陈利军宝哲林涛严昌荣汤秋香新疆农业大学农学院乌鲁木齐830052 农业农村部农业生态与资源保护总站北京100125 新疆农业科学院经济作物研究所乌鲁木齐830091 中国农业科学院农业环境与可持续发展研究所北京100081

为综合量化评价新疆地膜覆盖对主要作物产量和水分利用效率的影响,应用Meta-analysis方法,定量分析地膜覆盖后作物产量和水分利用效率的变化,并探讨其影响因素。通过文献检索(1982.2.19年),共获得347篇有关新疆主要作物地膜覆盖试验文... 详细信息

为综合量化评价新疆地膜覆盖对主要作物产量和水分利用效率的影响,应用Meta-analysis方法,定量分析地膜覆盖后作物产量和水分利用效率的变化,并探讨其影响因素。通过文献检索(1982.2.19年),共获得347篇有关新疆主要作物地膜覆盖试验文献。经严格筛选,从52.文献中获得2.8组数据,分布于新疆18个市、县,涵盖南疆和北疆2.主要区域。结果表明:地膜覆盖可显著提高作物产量(2..1%)和水分利用效率(2..0%),甜菜、向日葵、玉米、棉花、小麦和大豆分别增产38.1%、2..5%、2..4%、2..4%、17.6%和15.8%;玉米、棉花和小麦水分利用效率分别增加32.0%、2..3%和13.7%;在地域上,南疆增产幅度大于北疆地区;在相对较差的土壤基础肥力中表现出较好的增产效应和水分利用效率增加效应;年均降水量2.0 mm与年均降水量≥2.0 mm区域相比,有较高的增产效应,年均气温≥10℃的区域较年均气温2..6%;低海拔地区2.0 mm和高海拔地区增加效应最明显。该研究可为新疆覆膜技术应用提供参考。

关键词：地膜产量水分利用效率 Meta分析

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液体射流撞击液膜振荡行为的实验研究

推进技术 2019年第12期40卷 2748-2754页

作者：刘昌国施浙杭陈锐达李伟锋于达仁哈尔滨工业大学能源学院黑龙江哈尔滨150001 上海空间推进研究所上海201112 上海空间发动机工程技术研究中心上海201112 华东理工大学资源与环境工程学院上海200237

液体射流撞击过程是液体火箭发动机常见的高效雾化方式。为了进一步探究液体射流撞击雾化过程,采用高速摄像仪和图像处理技术对两股液体射流撞击液膜的振荡行为进行了实验研究,考察了射流韦伯数(2.≤We≤1356)和撞击角(2.=60°,90°,12...

液体射流撞击过程是液体火箭发动机常见的高效雾化方式。为了进一步探究液体射流撞击雾化过程,采用高速摄像仪和图像处理技术对两股液体射流撞击液膜的振荡行为进行了实验研究,考察了射流韦伯数(2.≤We≤1356)和撞击角(2.=60°,90°,12.°)对液膜振荡的影响。结果表明,随着射流韦伯数增大(We>2.0),撞击液膜会从竖直稳定模式转变为振荡模式,促进液膜破裂和雾化。增大撞击角能加剧液膜振荡和增加雾化角。2.=60°和90°的液膜振荡区间为2.02.0,无量纲振幅的时均极大值约为5。结果揭示了随着液体射流速度的增大,射流不稳定性的发展会引起撞击点的动量不平衡,进而形成液膜振荡。此外,液膜向下传播时与空气界面间的Kelvin-Helmholtz不稳定性也促进液膜振荡。

关键词：液体火箭发动机液膜撞击流雾化振荡

Towards 6G wireless communication networks:vision, enabling technologies, and new paradigm shifts

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Science china(Information sciences) 2021年第1期64卷 5-78页

作者： Xiaohu YOU cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi chen Xinying MA Chih-Lin I Shuangfeng HAN Ke LI chengkang PAN Zhimin zheNG Lajos HANZO Xuemin (Sherman) SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik G.LARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin chen zhe chen Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO H.Vincent POOR Gerhard P.FETTWEIS Ying-chang LIANG National Mobile Communications Research Laboratory School of Information Science and EngineeringSoutheast University Purple Mountain Laboratories Shanghai institute of Fog Computing Technology (SHIFT) ShanghaiTech University Research Center for Network Communication Peng Cheng Laboratory State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications National Engineering Laboratory for Mobile Network Technologies Beijing University of Posts and Telecommunications National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China (UESTC) china Mobile Research institute School of Electronics and Computer Science University of Southampton Department of Electrical and Computer Engineering University of Waterloo Global Big Data Technologies Centre (GBDTC) University of Technology Sydney School of Electrical and Electronic Engineering The University of Manchester LiFi Research and Development Centre Institute for Digital CommunicationsSchool of EngineeringThe University of Edinburgh Huawei Technologies Canada Co. Ltd. Huawei Technologies Department of Electrical Engineering (ISY) Link?ping University institute of Electronics Communications & Information Technology (ECIT)Queen's University Belfast State Key Laboratory of Millimeter Waves School of Information Science and EngineeringSoutheast University School of Electrical and Computer Engineering Georgia Institute of Technology 5G Innovation Centre University of Surrey Princeton University Vodafone Chair Mobile Communications Systems Technische Universit?t Dresden Center for Intelligent Networking and Communications (CINC) University of Electronic Science and Technology of China (UESTC)

The fifth generation(5G) wireless communication networks are being deployed worldwide from 2.2. and more capabilities are in the process of being standardized, such as mass connectivity, ultra-reliability,and guaranteed low latency. However, 5G will not meet all requirements of the future in 2.30 and beyond, and sixth generation(6G) wireless communication networks are expected to provide global coverage, enhanced spectral/energy/cost efficiency, better intelligence level and security, etc. To meet these requirements, 6G networks will rely on new enabling technologies, i.e., air interface and transmission technologies and novel network architecture, such as waveform design, multiple access, channel coding schemes, multi-antenna technologies, network slicing, cell-free architecture, and cloud/fog/edge computing. Our vision on 6G is that it will have four new paradigm shifts. First, to satisfy the requirement of global coverage, 6G will not be limited to terrestrial communication networks, which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV) communication networks, thus achieving a space-airground-sea integrated communication network. Second, all spectra will be fully explored to further increase data rates and connection density, including the sub-6GHz, millimeter wave(mmWave), terahertz(THz),and optical frequency bands. Third, facing the big datasets generated by the use of extremely heterogeneous networks, diverse communication scenarios, large numbers of antennas, wide bandwidths, and new service requirements, 6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI) and big data technologies. Fourth, network security will have to be strengthened when developing 6G networks. This article provides a comprehensive survey of recent advances and future trends in these four aspects. Clearly, 6G with additional technical requirements beyond those of 5G will enable f

关键词： 6G vision network architecture air interface and transmission technologies space-air-ground-sea integrated network all spectra artificial intelligence network security

Evidence for particle acceleration approaching PeV energies in the W51 complex

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Science Bulletin 2024年第18期69卷 2833-2841页

作者： LHAASO Collaboration zhen Cao F.Aharonian Axikegu Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi W.Bian A.V.Bukevich Q.Cao W.Y.Cao zhe Cao J.{2. J.F.{2. A.M.chen E.S.chen H.X.chen Liang chen Lin chen Long chen M.J.chen M.L.chen Q.H.chen S.chen S.H.chen S.Z.chen T.L.chen Y.chen N.cheng Y.D.cheng M.Y.Cui S.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu X.Q.Dong K.K.Duan J.H.Fan Y.Z.Fan J.Fang J.H.Fang K.Fang C.F.Feng H.Feng L.Feng S.H.Feng X.T.Feng Y.Feng Y.L.Feng S.Gabici B.Gao C.D.Gao Q.Gao W.Gao W.K.Gao M.M.Ge L.S.Geng G.Giacinti G.H.Gong Q.B.Gou M.H.Gu F.L.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han M.Hasan H.H.He H.N.He J.Y.He Y.He Y.K.Hor B.W.Hou C.Hou X.Hou H.B.Hu Q.Hu S.C.Hu D.H.Huang T.Q.Huang W.J.Huang X.T.Huang X.Y.Huang Y.Huang X.L.Ji H.Y.Jia K.Jia K.Jiang X.W.Jiang Z.J.Jiang M.Jin M.M.Kang I.Karpikov D.Kuleshov K.Kurinov B.B.Li C.M.Li cheng Li Cong Li D.Li F.Li H.B.Li H.C.Li Jian Li Jie Li K.Li S.D.Li W.L.Li W.L.Li X.R.Li Xin Li Y.Z.Li zhe Li Zhuo Li E.W.Liang Y.F.Liang S.J.Lin B.Liu C.Liu D.Liu D.B.Liu H.Liu H.D.Liu J.Liu J.L.Liu M.Y.Liu R.Y.Liu S.M.Liu W.Liu Y.Liu Y.N.Liu Q.Luo Y.Luo H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.R.Mao Z.Min W.Mitthumsiri H.J.Mu Y.C.Nan A.Neronov L.J.Ou P.Pattarakijwanich Z.Y.Pei J.C.Qi M.Y.Qi B.Q.Qiao J.J.Qin A.Raza D.Ruffolo A.Sáiz M.Saeed D.Semikoz L.Shao O.Shchegolev X.D.Sheng F.W.Shu H.C.Song Yu.V.Stenkin V.Stepanov Y.Su D.X.Sun Q.N.Sun X.N.Sun Z.B.Sun J.Takata P.H.T.Tam Q.W.Tang R.Tang Z.B.Tang W.W.Tian C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang J.C.Wang Kai Wang Kai Wang L.P.Wang L.Y.Wang P.H.Wang R.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.J.Wang Z.H.Wang Z.X.Wang zhen Wang zheng Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu Q.W.Wu S.Wu X.F.Wu Y.S.Wu S.Q.Xi J.Xia G.M.Xiang D.X.Xiao G.Xiao Y.L.Xin Y.Xing D.R.Xiong Z.Xiong D.L.Xu R.F.Xu R.X.Xu W.L.Xu L.Xue D.H.Yan J.Z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang L.L.Yang M.J.Yang R.Z.Yang W.X.Yang Y.H.Yao Z.G.Yao L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.Zeng T.X.Zeng W.Zeng M.Zha B.B.Zhang F.Zhang H.Zhang 不详 Key Laboratory of Particle Astrophysics&Experimental physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese academy of sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Dublin institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear physics P.O.Box 103980Heidelberg 69029Germany School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Tsung-Dao Lee institute&School of physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China institute for Nuclear Research of Russian academy of {2. Moscow 117312Russia Hebei Normal University Shijiazhuang 050024China University of Science and Technology of china Hefei 230026China State Key Laboratory of Particle Detection and Electronics China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311121China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China School of physics and Astronomy Yunnan UniversityKunming 650091China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of physics and Astronomy(Zhuhai)&School of physics(Guangzhou)&Sino-French {2. of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays(CRs)accelerated by the shock of supernova remnant(SNR)W51C and the dense molecular clouds in the adjacent star-forming region,***,the maximum acceleration capability of W51C for CRs remains *** on observations conducted with the Large high Altitude Air Shower Observatory(LHAASO),we report a significant detection ofγrays emanating from the W51 complex,with energies from 2.to 2.0 *** LHAASO measurements,for the first time,extend theγ-ray emission from the W51 complex beyond 100 TeV and reveal a significant spectrum bending at tens of *** combining the"π^(0)-decay bump"featured data from Fermi-LAT,the broadbandγ-ray spectrum of the W51 region can be well-characterized by a simple pp-collision *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~2.0 TeV in the CR proton spectrum,most likely providing the first evidence of SNRs serving as CR accelerators approaching the PeV ***,two young star clusters within W51B could also be theoretically viable to produce the most energeticγrays observed by *** findings strongly support the presence of extreme CR accelerators within the W51 complex and provide new insights into the origin of Galactic CRs.

关键词： UHE c-ray Cosmic rays SNR W51C Star clusters

含换电船舶电能输运航路的远洋海岛群混合电能传输网络规划

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中国电机工程学报 2019年第12期39卷 3420-3433页

作者：汪致洵林湘宁刘畅丁苏阳李卓李正天陈哲赵波强电磁工程与新技术国家重点实验室(华中科技大学) 湖北省武汉市430074 丹麦奥尔堡大学能源技术部丹麦奥尔堡国网浙江省电力公司电力科学研究院浙江省杭州市310014

现有远洋海岛屿电网之间缺乏有效的联络,仅采用海底电缆的互联方式,工程可行性与经济性欠佳。因此,该文提出采用换电船舶(power exchanging watercraft,PEW)电能输运航路代替部分海底电缆的形式,构建远洋海岛群混合电能的传输网络。首... 详细信息

现有远洋海岛屿电网之间缺乏有效的联络,仅采用海底电缆的互联方式,工程可行性与经济性欠佳。因此,该文提出采用换电船舶(power exchanging watercraft,PEW)电能输运航路代替部分海底电缆的形式,构建远洋海岛群混合电能的传输网络。首先建立PEW航路电能传输模型,分析其能量传输效率与成本;然后结合多场景生成及聚类方法,以网络综合成本最小为目标,并计及极端气象场景下电能网络的额外供电成本,建立含PEW航路混合电能传输网络的规划模型,并采用混沌引力搜索算法优化求解,仿真结果验证了所提方法的可行性与有效性。

关键词：远洋海岛群换电船舶混合电能传输网络场景聚类极端气象场景