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Author Correction: Transverse oscillations and an energy source in a strongly magnetized sunspot

Nature Astronomy 2024年 674页

作者： Ding Yuan Libo Fu Błażej Kuźma Xueshang Feng Wenda Cao Michaël Geeraerts Tom Van Doorsselaere Juan C. Trelles Arjona Carlos Quintero Noda Basilio Ruiz Cobo Kris Murawski Abhishek K. Srivastava Yuhu Miao Song Feng Jiangtao Su Institute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen Guangdong China Key Laboratory of Solar Activity and Space Weather National Space Science Center Chinese Academy of Sciences Beijing China Shenzhen Key Laboratory of Numerical Prediction for Space Storm Harbin Institute of Technology Shenzhen Guangdong China Big Bear Solar Observatory New Jersey Institute of Technology Big Bear City CA USA Center for Solar-Terrestrial Research New Jersey Institute of Technology Newark NJ USA Centre for mathematical Plasma Astrophysics Mathematics Department KU Leuven Leuven Belgium Instituto de Astrofísica de Canarias (IAC) San Cristóbal de La Laguna Tenerife Spain Dept. Astrofísica Universidad de La Laguna San Cristóbal de La Laguna Tenerife Spain Institute of Physics University of M. Curie-Skłodowska Lublin Poland Department of Physics Indian Institute of Technology (BHU) Varanasi India School of Information and Communication Shenzhen Institute of Information Technology Shenzhen Guangdong China Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming Yunnan China National Astronomical Observatories Chinese Academy of Sciences Beijing China School of Astronomy and Space Sciences University of Chinese Academy of Sciences Beijing China

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A Dual-Band Multilayer Heterogeneous Frequency Selective Surface with Miniaturized Unit Cell

A Dual-Band Multilayer Heterogeneous Frequency Selective Sur...

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IEEE International Conference on Computational Electromagnetics (ICCEM)

作者： Yichun Cui Shengjun Zhang Jiaqi Liu Xin liu Hui Xue Borong Zhang National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing 100076 China Beijing Institute of System Engineering Beijing China

ISBN: (纸本)9781538612422

In terms that most researches about Frequency Selective Surface (FSS) concentrate on single layer structure design or FSS with one fundamental mode, a multilayer heterogeneous dual-band frequency selective surface composed of slot FSS, dielectric medium, patch FSS is proposed. This FSS possess miniaturized unit cell with dimension of 6×6mm 2 , it acts as a dual-band filter in given bands while behaving as an entire reflector in others. Results show that this dual-band frequency selective surface has narrow transmission bandwidths near 8.5GHz and 19.5GHz and flat rejection bands except for that. The structure exhibits excellent stability for oblique incident angles and provides polarization-independent response with compact design which moves the operating bands away from grating lobes. A method to adjust the element's size is proposed as well based on basic elements when given pass band frequency changed.

关键词： electromagnetic wave polarisation frequency selective surfaces microwave filters multilayers frequency selective surfaces electromagnetic wave polarisation Microwave filters unit cell multilayers Dual band belt cleaner compact design

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Progress in ENSO prediction and predictability study

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national science Review 2018年第6期5卷 826-839页

作者： Youmin Tang Rong-Hua Zhang Ting Liu Wansuo Duan Dejian Yang Fei Zheng Hongli Ren Tao Lian Chuan Gao Dake Chen Mu Mu State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Environmental Science and Engineering University of Northern British Columbia Prince George Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences Qingdao National Laboratory for Marine Science and Technology State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of Sciences College of Oceanography Hohai University International Center for Climate and Environment Science Institute of Atmospheric PhysicsChinese Academy of Sciences Laboratory for Climate Studies & CMA—NJU Joint Laboratory for Climate Prediction Studies National Climate CenterChina Meteorological Administration College of Atmospheric and Oceanic Science Fudan University

ENSO is the strongest interannual signal in the global climate system with worldwide climatic, ecological and societal impacts. Over the past decades, the research about ENSO prediction and predictability has attracted broad attention. With the development of coupled models, the improvement in initialization schemes and the progress in theoretical studies, ENSO has become the most predictable climate mode at the time scales from months to seasons. This paper reviews in detail the progress in ENSO predictions and predictability studies achieved in recent years. An emphasis is placed on two fundamental issues: the improvement in practical prediction skills and progress in the theoretical study of the intrinsic predictability limit. The former includes progress in the couple models, data assimilations, ensemble predictions and so on, and the latter focuses on efforts in the study of the optimal error growth and in the estimate of the intrinsic predictability limit.

关键词： ENSO prediction and predictability coupled model ensemble prediction optimal error growth probabilistic prediction

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Station Layout Optimization Genetic Algorithm for Four Stations TDOA Location

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Journal of physics: Conference Series 2019年第6期1176卷

作者： Ruiqi Sun Zhonghang He Lu Gao Jinliang Bai National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing 100076

Station layout has a direct impact on localization precision for four-station TDOA (time difference of arrival) location system. In order to optimize the overall location precision of targets in certain area, genetic algorithm for station layout optimization is presented. GDOP is regarded as the measurement rule of location precision. Then the multi-object programming mathematical model of station layout optimization is built. The optimal solution is searched by genetic algorithm. Consequently, the optimal layout of station is obtained. The simulation provides the GDOP distribution of two station layouts. One is the initial station layout, and the other is the optimal station layout. The simulation results show that for the optimal station layout, the effect of improving the location precision is obvious, and also indicate the validity of genetic algorithm.

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Differences in Meteorological Conditions between Days with Persistent and Non-Persistent Pollution in Beijing, China

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Journal of Meteorological Research 2018年第1期32卷 81-98页

作者： Ting YOU Renguang WU Gang HUANG Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 College of Atmospheric Sciences Chengdu University of Information Technology Chengdu 610225 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology Qingdao 266237 Joint Center for Global Change Studies Beijing 100875 University of Chinese Academy of Sciences Beijing 100049

We compared the regional synoptic patterns and local meteorological conditions during persistent and non-persistent pollution events in Beijing using US NCEP–Department of Energy reanalysis outputs and observations from meteorological stations. The analysis focused on the impacts of high-frequency（period 〈 90 days） variations in meteorological conditions on persistent pollution events（those lasting for at least 3 days）. Persistent pollution events tended to occur in association with slow-moving weather systems producing stagnant weather conditions, whereas rapidly moving weather systems caused a dramatic change in the local weather conditions so that the pollution event was short-lived. Although Beijing was under the influence of anomalous southerly winds in all four seasons during pollution events, notable differences were identified in the regional patterns of sea-level pressure and local anomalies in relative humidity among persistent pollution events in different seasons. A region of lower pressure was present to the north of Beijing in spring, fall, and winter, whereas regions of lower and higher pressures were observed northwest and southeast of Beijing, respectively, in summer. The relative humidity near Beijing was higher in fall and winter, but lower in spring and summer. These differences may explain the seasonal dependence of the relationship between air pollution and the local meteorological variables. Our analysis showed that the temperature inversion in the lower troposphere played an important part in the occurrence of air pollution under stagnant weather *** results from this study are based on a limited number of events and thus require validation using more data.

关键词： persistent and non-persistent pollution events regional synoptic patterns local meteorological conditions temperature inversion stability index Beijing

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Electronic Supplementary Material to:The Predictability of Ocean Environments that Contributed to the 2020/21 Extreme Cold Events in China: 2020/21 La Ni?a and 2020 Arctic Sea Ice Loss*

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大气科学进展（英文版） 2022年第4期39卷后插1-后插3页

作者： Fei ZHENG Ji-Ping LIU Xiang-Hui FANG Mi-Rong SONG Chao-Yuan YANG Yuan YUAN Ke-Xin LI Ji WANG Jiang ZHU International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science& TechnologyNanjing 210044China Department of Atmospheric and Environmental Sciences University at Albany State University of New YorkAlbanyNY 12222USA Department of Atmospheric and Oceanic Sciences& Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 519082China National Climate Center Beijing 100081China International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Beijing Municipal Climate Center Beijing 100089China

Introduction:This file provides supplementary material on the brief descriptions of the IAP EPS and the pan-Arctic prediction sys-tems and components discussed in the main article. The additional figures comparing the...

Introduction: This file provides supplementary material on the brief descriptions of the IAP EPS and the pan-Arctic prediction sys-tems and components discussed in the main article. The additional figures comparing the best and worst Arctic sea-ice predic-tion members are also contained in the supplementary file.

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A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes

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Progress in Natural science:Materials International 2018年第1期28卷 24-27页

作者： Long Wang Tong Wu Han Wu Jun Zhong Ning Wang Rongming Wang Department of Equipment Manufacture Zhongshan Torch Polytechnic National Institute of Metrology China National Computer Products Quality Supervising Test Center Beijing Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft Materials Laboratory (FUNSOM) Soochow University Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing

There is currently intense interest in the use of nanoparticles for a wide range of biomedical and technological applications. In this paper, the hierarchical Co doped ZnO nanoflowers were synthesized by a facile wet chemical method and explored as biosensing material. The as-modified novel hydrogen peroxide sensor exhibited a wide linear range（0.25–20 mM）, highly reproducible response（R.S.D. of 2.7%） and long-term stability. The doping Co2+ions carried out the oxidations rapidly and efficiently for the catalysis of hydrogen peroxide（H2O2）. A high activity toward H2O2in the presence of ascorbic acid（AA） and NaNO2, which are only common for natural enzymes, has also been demonstrated. The good analytical performance, low cost and straightforward preparation method makes this doped semiconductor promising for a wide range of potential applications in medicine, biotechnology and environmental chemistry.

关键词： Nonenzymatic H2O2 sensor Co:ZnO Nanoflowers Electrocatalysis

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Study of RF structure and Beam Wave Interaction system for a W-band Sheet Beam EIK

Study of RF structure and Beam Wave Interaction system for a...

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2017 International Conference on Radar Systems, Radar 2017

作者： Chen, Shuyuan Liu, Jiaqi Gao, Lu Bai, Jinliang Jiang, Zhiye Xu, Feng Qin, Peng Liu, Hongyan Liu, Xin Li, Hu Gao, Jingpeng National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing100076 China

ISBN: (纸本)9781785615153

Sheet beam Extended Interaction Klystron (EIK) is an attractive Millimeter Waves (MMW) amplifier because of its high gain per unit length and compact configuration, which can be used in radar transmission system. In this paper, RF structure and beam wave interaction system of W band sheet beam EIK has been designed. A new and effective method of designing and studying the beam wave interaction system is presented in this *** whole tube consists of one single-gap cavity, six tri-gaps cavities and one five-gaps cavity. By optimizing the position of cavities, the output power can achieve 30 kW and high gain of 50 dB, which is calculated by three dimensional particle in cell (3D-PIC)*** provides a powerful basis for the subsequent study of sheet beam EIK. © 2017 Institution of Engineering and technology. All rights reserved.

关键词： Millimeter waves

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Improving the simulation of terrestrial water storage anomalies over China using a Bayesian model averaging ensemble approach

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Atmospheric and Oceanic science Letters 2018年第4期11卷 322-329页

作者： LIU Jian-Guo JIA Bing-Hao XIE Zheng-Hui SHI Chun-Xiang School of Mathematics and Computational Science and Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province Huaihua University State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG) Institute of Atmospheric Physics Chinese Academy of Sciences National Meteorological Information Center China Meteorological Administration

The ability to estimate terrestrial water storage(TWS)is essential for monitoring hydrological extremes(e.g.,droughts and floods)and predicting future changes in the hydrological ***,inadequacies in model physics and parameters,as well as uncertainties in meteorological forcing data,commonly limit the ability of land surface models(LSMs)to accurately simulate *** this study,the authors show how simulations of TWS anomalies(TWSAs)from multiple meteorological forcings and multiple LSMs can be combined in a Bayesian model averaging(BMA)ensemble approach to improve monitoring and *** using three forcing datasets and two LSMs were conducted over China's Mainland for the period 1979–*** the simulations showed good temporal correlations with satellite observations from the Gravity Recovery and Climate Experiment during 2004–*** correlation coefficient ranged between 0.5 and 0.8 in the humid regions(e.g.,the Yangtze river basin,Huaihe basin,and Zhujiang basin),but was much lower in the arid regions(e.g.,the Heihe basin and Tarim river basin).The BMA ensemble approach performed better than all individual member *** captured the spatial distribution and temporal variations of TWSAs over China's Mainland and the eight major river basins very well;plus,it showed the highest R value(>0.5)over most basins and the lowest root-mean-square error value(<40 mm)in all basins of *** good performance of the BMA ensemble approach shows that it is a promising way to reproduce long-term,high-resolution spatial and temporal TWSA data.

关键词： Terrestrial water storage anomalies multi-forcing and multi-model ensemble simulation Bayesian model averaging spatiotemporal variation uncertainty

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Co-Assembly Induced Solid-State Stacking Transformation in Amino Acid-Based Crystals with Enhanced Physical Properties

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Angewandte Chemie 2022年第17期134卷

作者： Prof. Wei Ji Hui Yuan Dr. Bin Xue Dr. Sarah Guerin Dr. Hui Li Dr. Lei Zhang Yanqing Liu Dr. Linda J. W. Shimon Prof. Mingsu Si Prof. Yi Cao Prof. Wei Wang Prof. Damien Thompson Prof. Kaiyong Cai Prof. Rusen Yang Prof. Ehud Gazit Key Laboratory of Biorheological Science and Technology Ministry of Education The National “111” Project for Biomechanics and Tissue Repair Engineering College of Bioengineering Chongqing University Chongqing 400044 P. R. China School of Molecular Cell Biology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel School of Advanced Materials and Nanotechnology Xidian University Xi'an 710126 China National Laboratory of Solid State Microstructure Department of Physics Nanjing University Nanjing 210093 Jiangsu China Department of Physics Bernal Institute University of Limerick Limerick V94 T9PX Ireland Science and Technology on Combustion and Explosion Laboratory Xi'an Modern Chemistry Research Institute Xi'an 710065 China CAEP Software Center for High Performance Numerical Simulation Beijing 100088 China Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou 730000 China Department of Chemical Research Support Weizmann Institute of Science Rehovot 7610001 Israel

The physical characteristics of supramolecular assemblies composed of small building blocks are dictated by molecular packing patterns in the solid-state. Yet, the structure–property correlation is still not fully understood. Herein, we report the unexpected cofacial to herringbone stacking transformation of a small aromatic bipyridine through co-assembly with acetylated glutamic acid. The unique solid-state structural transformation results in enhanced physical properties of the supramolecular organizations. The co-assembly methodology was further expanded to obtain diverse molecular packings by different bipyridine and acetylated amino acid derivatives. This study presents a feasible co-assembly approach to achieve the solid-state stacking transformation of supramolecular organization and opens up new opportunities to further explore the relationship between molecular arrangement and properties of supramolecular assemblies by crystal engineering.

关键词： Amino Acids Co-Assembly Stacking Modes Supramolecular Chemistry

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