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基于ZnO纳米片多级结构的柔性染料敏化太阳能电池的制备

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无机材料学报 2018年第5期33卷 507-514页

作者：程厚燕罗俊黄丽群李家科杨志胜郭平春王艳香张琦锋景德镇陶瓷大学材料科学与工程学院景德镇333403 美国北达科他州立大学电子和计算机工程系

采用水热合成法制备基于钛箔的ZnO纳米片薄膜,采用化学浴沉积法在ZnO纳米片薄膜表面原位沉积ZnO纳米粒和微球,制备了ZnO纳米片/纳米粒/微球复合结构薄膜,并将膜组装成柔性染料敏化太阳能电池。研究了钛箔预处理方式、化学浴沉积工艺对Zn... 详细信息

采用水热合成法制备基于钛箔的ZnO纳米片薄膜,采用化学浴沉积法在ZnO纳米片薄膜表面原位沉积ZnO纳米粒和微球,制备了ZnO纳米片/纳米粒/微球复合结构薄膜,并将膜组装成柔性染料敏化太阳能电池。研究了钛箔预处理方式、化学浴沉积工艺对ZnO薄膜和电池性能的影响。采用X射线衍射仪、透射电子显微镜和扫描电子显微镜对钛箔和ZnO薄膜的物相组成和形貌进行表征,采用太阳光模拟器和数字源表测试了电池的J-V光电性能曲线,通过电化学阻抗谱分析了电池内部电子传输情况。研究结果表明:当钛箔基底采用酸抛光处理,将所得ZnO纳米片膜用已经预热24 h的0.15 mol/L二水乙酸锌甲醇溶液改性5 h,所得电池光电性能最好,其短路电流密度、开路电压、填充因子和光电转化率分别为11.26 mA/cm^2,0.67 V,0.60和4.51%。

关键词：柔性染料敏化太阳能电池 ZnO纳米片复合光阳极电池性能

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隐式半马尔科夫模型下的变压器故障诊断方法

计算机测量与控制 2019年第5期27卷 30-34页

作者：李刚米琛浩郑顾平夏彦卫华北电力大学计算机系河北保定071003 国网河北省电力公司电力科学研究院石家庄050021

变压器运行过程中存在多种状态,能够正确划分运行状态,对变压器的维修和故障诊断有着重要的意义;首先,详细分析了马尔科夫链的衍生模型,并构造了隐式半马尔科夫模型(hidden semi-markov models,HSMM);然后,通过引入"微状态-宏状态"的对... 详细信息

变压器运行过程中存在多种状态,能够正确划分运行状态,对变压器的维修和故障诊断有着重要的意义;首先,详细分析了马尔科夫链的衍生模型,并构造了隐式半马尔科夫模型(hidden semi-markov models,HSMM);然后,通过引入"微状态-宏状态"的对应关系,用于在HSMM中描述变压器运行过程中的状态;最后,建立了涵盖变压器历史状态信息,并包含特征提取、状态分类和故障识别过程的HSMM故障诊断流程;通过变压器DGA故障诊断的算例分析,结果表明所述方法的有效性。

关键词：隐马尔科夫故障诊断 DGA 微状态-宏状态

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含小水电的配电网电压无功优化控制综述

电力电容器与无功补偿 2022年第1期43卷 1-11页

作者：闫群民王佳沈延峰李杰义周密陕西省工业自动化重点实验室陕西汉中723001 国网安康供电公司陕西安康725000 陕西理工大学电气工程学院陕西汉中723001

随着小水电并网渗透率的不断提高,配电网的原有拓扑结构发生改变,局部地区的配电网电压越限问题严重,电能质量难以满足国家标准。在对小水电集中并网时过电压机理进行分析的基础上;研究小水电接入配电网的电压调整原理;从基于配网结构... 详细信息

随着小水电并网渗透率的不断提高,配电网的原有拓扑结构发生改变,局部地区的配电网电压越限问题严重,电能质量难以满足国家标准。在对小水电集中并网时过电压机理进行分析的基础上;研究小水电接入配电网的电压调整原理;从基于配网结构和电网设备的电压控制、配电网多目标无功优化、配电网分层分区三方面总结了小水电接入配电网的电压控制策略。最后结合目前的研究现状对未来含小水电的配电网电压控制技术作出展望。

关键词：小水电配电网无功优化电压控制

隐形矫治在口腔扫描图像上牙列中线的确定方法

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口腔医学研究 2020年第8期36卷 761-765页

作者：张晗李永辉杨若仪白璐吴聿淼李祥王谜朱宪春吉林大学口腔医学院正畸科吉林长春130021 长春理工大学计算机科学技术学院吉林长春130022

目的:探究一种帮助医生在隐形矫治方案制定时,精准的确定牙列终末状态的中线位置的方法,以帮助解决目前正畸临床中牙列中线确定方法可重用性低、稳定性差、受正畸医师经验所限的问题,具有一定的辅助参考意义。方法:对于接受隐形矫治的1... 详细信息

目的:探究一种帮助医生在隐形矫治方案制定时,精准的确定牙列终末状态的中线位置的方法,以帮助解决目前正畸临床中牙列中线确定方法可重用性低、稳定性差、受正畸医师经验所限的问题,具有一定的辅助参考意义。方法:对于接受隐形矫治的12例错[[[牙合]]]畸形患者,将每个患者矫治前的CBCT图像与口腔扫描图像进行配准,在CBCT图像的三个视图上结合其颅骨的三维重建模型确定正中矢状参考平面,并将该平面映射至口腔扫描模型以确定牙列中线调整方案,计算本研究得到的牙列中线调整值,并与正畸专家医师初始设计的牙列中线调整值进行比较。结果:本研究得到的牙列中线调整值与正畸专家医师临床设计的牙列中线调整值相比,最大偏差0.46 mm,最小偏差0.05 mm(0.05),一致性良好。结论:本研究提出的方法能够准确的在口腔扫描图像中确定牙列终末状态的中线位置,有助于年轻正畸医师在隐形矫治中确定牙列中线、排列牙齿。

关键词：隐形矫治牙列中线正中矢状参考平面口腔扫描图像 CBCT图像

基于多智能体伪并行遗传算法的小水电无功优化研究

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电力电容器与无功补偿 2021年第1期42卷 18-24页

作者：闫群民张田朱娟娟沈延峰李杰义周密陕西省工业自动化重点实验室陕西汉中723001 国网安康供电公司陕西安康725000 陕西理工大学电气工程学院陕西汉中723001

为了解决小水电接入配电网带来的电压波动、网损增加等问题。构建了以配电网网损最小为目标函数,电压偏移量与无功补偿量为罚函数的无功优化数学模型,提出了基于多智能体和伪并行遗传算法的智能混合型求解算法,该算法通过邻集拓扑和网... 详细信息

为了解决小水电接入配电网带来的电压波动、网损增加等问题。构建了以配电网网损最小为目标函数,电压偏移量与无功补偿量为罚函数的无功优化数学模型,提出了基于多智能体和伪并行遗传算法的智能混合型求解算法,该算法通过邻集拓扑和网格环境的交换来完成全体Agent的更新,增加了进化的并行性,在优化遗传算子的基础上引入了自学习算子,该措施在有效强化系统多样性的同时降低系统内部传输的数据量,从而增强了遗传算法进行全局搜索的能力。在Matlab中对IEEE 30节点系统进行仿真和验证,并将所得结果与传统遗传算法、多Agent遗传算法进行比较,结果表明该算法能有效降低系统网损,提高电压水平,而且显著地提高了运算速度,具有更强的全局寻优能力。

关键词：小水电无功优化多智能体伪并行遗传算法

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盘点气候风险机遇,展望健康繁荣未来

科学通报 2024年第27期69卷 4005-4011页

作者：张诗卉张弛蔡闻佳白玉琪 Max Callaghan 常楠陈彬陈慧琪程亮亮戴瀚程代鑫范维澄房小怡高仝耿阳关大博胡艺馨华峻翊黄存瑞黄弘黄建斌黄小猛纪思翰蒋俏蕾姜晓朋 Gregor Kiesewetter 李湉湉梁璐林波荣林华亮刘欢刘起勇刘小波刘钊刘竹刘昱甫陆波鲁晨曦罗震宇马伟米志付任超 Marina Romanello 沈鉴翔苏婧孙语泽孙昕璐汤绪 Maria Walawender 王灿王情汪蕊 Laura Warnecke 魏汪宇文三妹谢杨熊辉徐冰颜钰杨秀姚芳虹俞乐袁嘉灿曾仪娉张镜张璐张锐张尚辰张少辉赵梦真郑大山周浩周景博周子乔罗勇宫鹏清华大学地球系统科学系北京100084 北京理工大学管理学院北京100081 Mercator Research Institute on Global Commons and Climate Change Mercator Research Institute on Global Commons and Climate ChangeBerlin 10829Germany 南京医科大学公共卫生学院南京211166 北京师范大学环境学院北京100875 中山大学公共卫生学院广州510080 北京大学环境科学与工程学院北京100871 清华大学公共安全研究所北京100084 清华大学工程物理系北京100084 中国气象科学研究院气象影响与风险研究中心北京100086 山东师范大学商学院济南250013 清华大学建筑学院北京100084 南方科技大学统计与数据科学系深圳518055 中国海洋大学国际事务与公共管理学院青岛266003 清华大学万科公共卫生学院北京100084 清华大学新闻与传播学院北京100084 世界卫生组织驻华代表处北京100600 Pollution Management Research Group EnergyClimateand Environment ProgramInternational Institute for Applied Systems Analysis(IIASA)Laxenburg 1-A-2361Austria 中国疾病预防控制中心环境与健康相关产品安全所环境健康风险评估室北京102206 department of Landscape Architecture&Environmental Planning University of CaliforniaBerkeley CA 94607USA 清华大学环境学院北京100084 中国疾病预防控制中心传染病预防控制所传染病预防控制国家重点实验室北京102206 北京经济管理职业学院临空经济管理学院北京100102 中国气象局国家气候中心北京100081 Geography College of Life and Environmental SciencesUniversity of ExeterExeter EX12LUUK 山东大学齐鲁医学院公共卫生学院流行病学系济南250002 The Bartlett School of Sustainable Construction University College LondonLondon WC1H 0ALUK 香港大学建筑学院中国香港999077 Institute for Global Health University College LondonLondon WC1H 0ALUK 清华大学人文学院北京100084 复旦大学大气与海洋系/大气科学研究院上海200438 复旦大学极端天气/气候事件与人体健康风险互联和治理国际卓越中心上海200438 北京航空航天大学经济与管理学院北京100083 香港科技大学计算机科学与工程系广州511453 清华大学气候变化与可持续发展研究院北京100084 北京大学体育教研部北京100871 清华大学苏世民学院北京100084 清华大学城市治理与可持续发展研究院北京100084 百度研究院北京100091 香港大学地球科学系和地理系中国香港999077

气候变化带来的健康风险与日俱增,煤炭消费及相关碳排放量的反弹,再度敲响了中国气候变化警钟.2022年,中国面临了严峻的气候挑战.极端天气事件发生的频率和强度不断上升,许多地区气温纪录屡创新高,全国平均气温攀升至历史第二高位,同时... 详细信息

气候变化带来的健康风险与日俱增,煤炭消费及相关碳排放量的反弹,再度敲响了中国气候变化警钟.2022年,中国面临了严峻的气候挑战.极端天气事件发生的频率和强度不断上升,许多地区气温纪录屡创新高,全国平均气温攀升至历史第二高位,同时降水量自2012年以来创新低,南方地区遭遇夏秋连旱,而湖南和东北地区则出现了极端降雨和洪涝灾害.采取及时、充分的措施不仅能减轻气候变化对健康的影响,还将保护基础设施不被极端天气破坏.

关键词：煤炭消费极端天气事件基础设施气候变化极端降雨碳排放量气候风险盘点

Dense matter with eXTP

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Science China(Physics,Mechanics & Astronomy) 2019年第2期62卷 28-44页

作者： Anna L.Watts WenFei Yu Juri Poutanen Shu Zhang Sudip Bhattacharyya Slavko Bogdanov Long Ji Alessandro Patruno Thomas E.Riley Pavel Bakala Altan Baykal Federico Bernardini Ignazio Bombaci Edward Brown Yuri Cavecchi Deepto Chakrabarty Jér?me Chenevez Nathalie Degenaar Melania Del Santo Tiziana Di Salvo Victor Doroshenko Maurizio Falanga Robert D.Ferdman Marco Feroci Angelo F.Gambino mingYu Ge Svenja K.Greif Sebastien Guillot Can Gungor Dieter H.Hartmann Kai Hebeler Alexander Heger Jeroen Homan Rosario Iaria Jean in 't Zand Oleg Kargaltsev Aleksi KurkelaTheoretical Physics department CERN XiaoYu Lai Ang Li XiangDong Li ZhaoSheng Li Manuel Linares FangJun Lu Simin Mahmoodifar Mariano Méndez M.Coleman miller Sharon Morsink Joonas N?ttil? Andrea Possenti Chanda Prescod-Weinstein JinLu Qu Alessandro Riggio Tuomo Salmi Andrea Sanna Andrea Santangelo Hendrik Schatz Achim Schwenk Liming Song Eva?rámková Benjamin Stappers Holger Stiele Tod Strohmayer Ingo Tews Laura Tolos Gabriel T?r?k David Tsang Martin Urbanec Andrea Vacchi RenXin Xu YuPeng Xu Silvia Zane GuoBao Zhang ShuangNan Zhang WenDa Zhang ShiJie Zheng Xia Zhou Anton Pannekoek Institute for Astronomy University of Amsterdam Shanghai Astronomical Observatory Tuorla Observatory Department of Physics and Astronomy University of Turku Nordita KTH Royal Institute of Technology and Stockholm University Institute of High Energy Physics Chinese Academy Sciences Tata Institute of Fundamental Research Columbia Astrophysics Laboratory Columbia University Institut für Astronomie und Astrophysik Tübingen Universit?t Tübingen Leiden Observatory Leiden University Research Center for Computational Physics and Data Processing Silesian University in Opava Physics department Middle East Technical University INAF Osservatorio Astronomico di Roma New York university Abu Dhabi Dipartimento di Fisica Enrico Fermi University of Pisa INFN Italian National Institute for Nuclear Physics department of Physics and Astronomy Michigan State University department of Astrophysical Sciences Princeton University Mathematical Sciences and STAG Research Centre University of Southampton miT Kavli Institute for Astrophysics and Space Research DTU Space Technical University of Denmark INAF/IASF Palermo via Ugo La Malfa 153 Universita degli Studi di Palermo Dipartimento di Fisica e Chimica International Space Science Institute (ISSI) Faculty of Science University of East Anglia INAF Istituto di Astrofisica e Planetologie Spaziali Institut für Kernphysik Technische Universit?t Darmstadt ExtreMe Matter Institute EMmi GSI Helmholtzzentrum für Schwerionenforschung GmbH Instituto de Astrof'?sica Pontificia Universidad Católica de Chile department of Physics & Astronomy Kinard Lab of Physics Clemson University School of Physics and Astronomy Monash University SRON Netherlands Institute for Space Research department of Physics The George Washington University Faculty of Science and Technology University of Stavanger School of Physics and Mechanical & electrical engineering Hubei University of Education department of Astronomy Xiamen University (Haiyun Campus) School of Astronomy and Space

In this White Paper we present the potential of the Enhanced X-ray Timing and Polarimetry(eXTP) mission for determining the nature of dense matter; neutron star cores host an extreme density regime which cannot be replicated in a terrestrial laboratory. The tightest statistical constraints on the dense matter equation of state will come from pulse profile modelling of accretion-powered pulsars, burst oscillation sources, and rotation-powered pulsars. Additional constraints will derive from spin measurements, burst spectra, and properties of the accretion flows in the vicinity of the neutron star. Under development by an international Consortium led by the Institute of High Energy Physics of the Chinese Academy of Sciences, the eXTP mission is expected to be launched in the mid 2020 s.

关键词： neutron X-rays dense matter equation of state

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 Chang Yue Chang Zhe Chang Xinyuan Chang 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 physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy 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,2015)and the Conceptual Design Report(CDR,2018),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 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise