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Correction to: Bifurcations, chaotic behavior, sensitivity analysis and new optical solitons solutions of Sasa-Satsuma equation

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Nonlinear Dynamics 2024年第17期112卷 15521-15521页

作者： Li, Peiluan Shi, Sairu Xu, Changjin Rahman, Mati ur School of Mathematics and Statistics Henan University of Science and Technology Luoyang People’s Republic of China Longmen Laboratory Luoyang People’s Republic of China Guizhou Key Laboratory of Economics System Simulation Guizhou University of Finance and Economics Guiyang People’s Republic of China School of Mathematical Sciences Jiangsu University Zhenjiang People’s Republic of China Department of Computer Science and Mathematics Lebanese American University Beirut Lebanon

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The physics-based deterministic scenarios for earthquake hazards and losses of the Zhujiangkou fault in southern China

npj Natural Hazards

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npj Natural Hazards 2025年第1期2卷 1-13页

作者： Yilong Li Ming Wang Kai Liu Houyun Yu Zhenguo Zhang Wei Zhang Xiaofei Chen Xiuwei Ye Joint International Research Laboratory of Catastrophe Simulation and Systemic Risk Governance Beijing Normal University Zhuhai China School of National Safety and Emergency Management Beijing Normal University Zhuhai China Department of Earth and Space Sciences Southern University of Science and Technology Shenzhen China School of National Safety and Emergency Management Beijing Normal University Beijing China Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology Southern University of Science and Technology Shenzhen China China Earthquake Administration Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology Guangdong Earthquake Agency Guangzhou China Guangdong Science and Technology Collaborative Innovation Center for Earthquake Prevention and Disaster Mitigation Guangzhou China Key Laboratory of Disaster Forecast and Control in Engineering of the Ministry of Education Urban Earthquake Safety Laboratory Guangzhou China

Dynamic rupture directivity significantly impacts earthquake hazard and loss assessments; yet, it is often overlooked, leading to uncertainties. We developed high-resolution, broadband, deterministic scenarios for earthquake hazards and losses of the Zhujiangkou Fault (ZF) in the Guangdong-Hong Kong-Macao Greater Bay Area of southern China. The calculations cover the entire physical process from fault dynamic rupture through strong ground motion propagation to quantitative loss estimations. We fully incorporate the real 3D physical fields, including fault structure, regional stress, friction conditions, inhomogeneous velocity, and topography. Results revealed higher earthquake hazards and losses triggered by the northwestern ZF segment, affecting Hong Kong, Shenzhen, Dongguan, Macao, and Guangzhou. The rupture directivity effect, driven by seismic wave interferences in forward propagation, leads to stark differences in hazards and losses across urban agglomerations, even under similar fault conditions. These findings help enhance the precision of earthquake risk assessments and provide practical approaches for disaster prevention.

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GLOBAL OCEANS

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Bulletin of the American Meteorological Society 2024年第8期105卷 S156-S213页

作者： Johnson, G.C. Lumpkin, R. NOAA/OAR Pacific Marine Environmental Laboratory Seattle Washington NOAA/OAR Atlantic Oceanographic and Meteorological Laboratory Miami Florida NOAA/OAR Physical Sciences Laboratory Boulder Colorado KBR Inc. Greenbelt Maryland NASA Goddard Space Flight Center Greenbelt Maryland NOAA/NESDIS National Centers for Environmental Information Silver Spring Maryland Cooperative Institute for Climate Ocean and Ecosystem Studies University of Washington Seattle Washington Universities Space Research Association Columbia Maryland College of Marine Science University of South Florida St. Petersburg Florida School of Ocean and Earth Science University of Southampton Southampton United Kingdom International Center for Climate and Environment Sciences Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Rosenstiel School of Marine Atmospheric and Earth Science University of Miami Miami Florida School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta Georgia Science Systems and Applications Inc. Lanham Maryland ADNET Systems Inc. Hampton Virginia Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder Colorado Scripps Institution of Oceanography University of California San Diego La Jolla California Cooperative Institute for Marine and Atmospheric Studies University of Miami Miami Florida Cooperative Institute for Satellite Earth System Studies North Carolina State University Asheville North Carolina Center for Coastal Physical Oceanography Old Dominion University Norfolk Virginia Australian Antarctic Program Partnership Institute for Marine and Antarctic Studies Australian Research Council Centre of Excellence for Climate Extremes University of Tasmania Hobart Australia NOAA/NWS National Centers for Environmental Prediction Climate Prediction Center College Park Maryland NOAA/NESDIS National Centers for Environmental Information Asheville North Carolina Department of Atmosphere Ocean an

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Design and fabrication of w-shaped deployalbe composite boom 22

Design and fabrication of w-shaped deployalbe composite boom

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22nd International Conference on Composite Materials, ICCM 2019

作者： Shi, J.Q. Wang, Y.Q. Qi, J.W. Zhao, C. Yan, B. College of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing China Key Laboratory of Space Vehicle Institutions and Aerospace System Engineering Shanghai China

Thin-walled composite booms have been widely applied in micro-satellites due to their simple structure form. This paper presents a new design with an open structure for secondary load-bearing booms. The geometry of the boom and ply stack sequence were optimized to reduce stress concentrations. The design boundary of the ply stacking sequence was proposed. The damage of the structure was analysed in finite element method. Samples manufactured in advanced pultrusion process (ADP) had good performance. © 2019 International Committee on Composite Materials. All rights reserved.

关键词： Finite element method

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Method Comparison for Simulating Non-Gaussian Beams and Diffraction for Precision Interferometry

arXiv

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arXiv 2022年

作者： Zhao, Mengyuan Tao, Yazheng Weber, Kevin Haase, Tim Schuster, Sönke Hao, Zhenxiang Wanner, Gudrun Key Laboratory of Electronics and Information Technology for Space System National Space Science Center Chinese Academy of Sciences No.1 Nanertiao Zhongguancun Haidian district Beijing100190 China Yuquan Road Shijingshan District Beijing100049 China Callinstr. 38 Hannover30167 Germany Institute for Gravitational Physics The Leibniz Universität Hannover Callinstr. 38 Hannover30167 Germany Institute of Theoretical Physics Chinese Academy of Sciences No.55 Zhongguancun East Road Haidian District Beijing100190 China

In the context of simulating precision laser interferometers, we compare via several examples two wavefront decomposition methods: the Mode Expansion Method (MEM) and the Gaussian beam decomposition (GBD) for their precision and applicability. To judge the performance of these methods, we define different types of errors and study their properties. We specify how the two methods can be fairly compared and based on that, the quality of the MEM and GBD are compared in several examples. We test here cases for which analytic results are available, i.e., non-clipped circular and general astigmatic Gaussian beams, as well as clipped circular Gaussian beams, in the near-, far-, and extreme far-field of millions of kilometers occurring in space-gravitational wave detectors. Additionally, we compare the methods for aberrated wavefronts and the interaction with optical components by testing reflections from differently curved mirrors. We find that both methods can be generally used for decomposing non-Gaussian beams. However, which method is more accurate depends on the optical system and simulation settings. In the given examples, the MEM more accurately describes non-clipped Gaussian beams, while for clipped Gaussian beams and the interaction with surfaces, the GBD is more precise. © 2022, CC BY.

关键词： Gaussian beams

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The effects of different travel modes and travel destinations on COVID-19 transmission in global cities

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science Bulletin 2022年第6期67卷 588-592,M0003页

作者： Rui Zhu Luc Anselin Michael Batty Mei-Po Kwan Min Chen Wei Luo Tao Cheng Che Kang Lim Paolo Santi Cheng Cheng Qiushi Gu Man Sing Wong Kai Zhang Guonian Lü Carlo Ratti Department of Land Surveying and Geo-Informatics the Hong Kong Polytechnic UniversityHong KongChina Key Laboratory of Virtual Geographic Environment(Ministry of Education) Nanjing Normal UniversityNanjing 210023China Senseable City Laboratory Future Urban Mobility IRGSingapore-MIT Alliance for Research and TechnologySingapore 138602Singapore Center for Spatial Data Science Division of the Social SciencesUniversity of ChicagoChicago IL 60637USA School of Geography Science Nanjing Normal UniversityNanjing 210023China Centre for Advanced Spatial Analysis Faculty of the Built EnvironmentUniversity College LondonLondon WC1E 6BTUK Department of Geography and Resource Management the Chinese University of Hong KongHong KongChina Institute of Space and Earth Information Science the Chinese University of Hong KongHong KongChina Department of Human Geography and Spatial Planning Utrecht UniversityUtrecht 3584 CSNetherlands State Key Laboratory Cultivation Base of Geographical Environment Evolution Nanjing 210023China Department of Geography National University of SingaporeSingapore 117570Singapore SpaceTimeLab Department of CivilEnvironmental and Geomatic EngineeringUniversity College LondonLondon WC1E 6BTUK Department of Clinical Translational Research Singapore General HospitalSingapore 169856Singapore Division of Clinical Immunology and Transfusion Medicine Department of Laboratory MedicineKarolinska InstitutetStockholm 17177Sweden Senseable City Laboratory Department of Urban Studies and PlanningMassachusetts Institute of TechnologyCambridgeMA 02139USA Istituto di Informatica e Telematica del CNR Pisa 56124Italy Department of System Science Institute of High Performance Computing Agency for ScienceTechnology and ResearchSingapore 138632Singapore Department of Tourism Studies School of HumanitiesSoutheast UniversityNanjing 210096China

The international community has made significant efforts to flatten the COVID-19 curve,including predicting transmission[1,2],executing unprecedented global lockdowns and social distancing[3,4],promoting the wearing of facemasks and social distancing measures[5],and isolating confirmed cases and contacts[6].Because of the adverse consequences of these lockdown measures[7],many cities have reopened so they can rebuild their ***,as mobility has gradually returned towards normal,imported cases from unknown sources have disrupted the recovery situation,and cities are continually at high risk of new waves of infection[8,9]since airborne transmission is the dominant transmission route[10].

关键词：多变量时间序列疫情传播出行方式谷歌公司交通出行病毒传播出行行为大城市

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Anthropogenic emission is the main contributor to the rise of atmospheric methane during 1993-2017

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National science Review 2022年第5期9卷 154-166页

作者：张臻 Benjamin Poulter Sara Knox Ann Stavert Gavin McNicol Etienne Fluet-Chouinard Aryeh Feinberg 赵园红 Philippe Bousquet Josep G.Canadell Anita Ganesan Gustaf Hugelius George Hurtt Robert B.Jackson Prabir K.Patra Marielle Saunois Lena H?glund-Isaksson 黄春林 Abhishek Chatterjee 李新 Department of Geographical Sciences University of Maryland Biospheric Sciences Laboratory NASA Goddard Space Flight Center Department of Geography University of British Columbia Global Carbon Project CSIRO Oceans and Atmosphere Department of Earth and Environmental Sciences University of Illinois Chicago Department of Earth System Science Stanford University Institute for Data Systems and Society Massachusetts Institute of Technology College of Oceanic and Atmospheric Sciences Ocean University of China Laboratoire des Sciences du Climat et de l’Environment LSCE-IPSL (CEA-CNRS-UVSQ)Université Paris-Saclay School of Geographical Sciences University of Bristol Department of Physical Geography and Bolin Centre for Climate Research Stockholm University Woods Institute for the Environment and Precourt Institute for Energy Stanford University Research Institute for Global Change JAMSTEC International Institute for Applied Systems Analysis (IIASA) Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Global Modeling and Assimilation Office NASA Goddard Space Flight Center Universities Space Research Association Institute of Tibetan Plateau Research Chinese Academy of Sciences

Atmospheric methane（CH4） concentrations have shown a puzzling resumption in growth since 2007 following a period of stabilization from 2000 to *** hypotheses have been proposed to explain the temporal variations in CH4growth,and attribute the rise of atmospheric CH4either to increases in emissions from fossil fuel activities,agriculture and natural wetlands,or to a decrease in the atmospheric chemical ***,we use a comprehensive ensemble of CH4source estimates and isotopic δ13C-CH4source signature data to show that the resumption of CH4growth is most likely due to increased anthropogenic *** emission scenarios that have the fewest biases with respect to isotopic composition suggest that the agriculture,landfill and waste sectors were responsible for 53±13% of the renewed growth over the period 2007-2017 compared to 2000-2006;industrial fossil fuel sources explained an additional 34 ±24%,and wetland sources contributed the least at 13 ±9%.The hypothesis that a large increase in emissions from natural wetlands drove the decrease in atmospheric δ13C-CH4values cannot be reconciled with current process-based wetland *** finding suggests the need for increased wetland measurements to better understand the contemporary and future role of wetlands in the rise of atmospheric methane and climate *** findings highlight the predominant role of anthropogenic activities in driving the growth of atmospheric CH4concentrations.

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Comets in context: Comparing comet compositions with protosolar nebula models

arXiv

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arXiv 2022年

作者： Willacy, Karen Turner, Neal Bonev, Boncho Gibb, Erika Russo, Neil Dello DiSanti, Michael Vervack, Ronald J. Roth, Nathan X. Jet Propulsion Laboratory California Institute of Technology MS 169-506 4800 Oak Grove Drive PasadenaCA91109 United States Department of Physics American University WashingtonDC United States Department of Physics and Astronomy University of Missouri-St Louis St LouisMO United States Johns Hopkins Applied Physics Laboratory 11100 Johns Hopkins Road LaurelMD20723 United States Solar System Exploration Division Planetary Science Laboratory Code 693 NASA/Goddard Space Flight Center GreenbeltMD United States Goddard Center for Astrobiology NASA/Goddard Space Flight Center GreenbeltMD United States Solar System Exploration Division Astrochemistry Laboratory Code 691 NASA Goddard Space Flight Center 8800 Greenbelt Rd GreenbeltMD20771 United States Department of Physics The Catholic University of America 620 Michigan Ave. N.E. WashingtonDC20064 United States

Comets provide a valuable window into the chemical and physical conditions at the time of their formation in the young solar system. We seek insights into where and when these objects formed by comparing the range of abundances observed for nine molecules and their average values across a sample of 29 comets to the predicted midplane ice abundances from models of the protosolar nebula. Our fiducial model, where ices are inherited from the interstellar medium, can account for the observed mixing ratio ranges of each molecule considered, but no single location or time reproduces the abundances of all molecules simultaneously. This suggests that each comet consists of material processed under a range of conditions. In contrast, a model where the initial composition of disk material is ‘reset’, wiping out any previous chemical history, cannot account for the complete range of abundances observed in comets. Using toy models that combine material processed under different thermal conditions we find that a combination of warm (CO-poor) and cold (CO-rich) material is required to account for both the average properties of the Jupiter-family and Oort cloud comets, and the individual comets we consider. This could occur by the transport (either radial or vertical) of ice-coated dust grains in the early solar system. Comparison of the models to the average Jupiter-family and Oort cloud comet compositions suggest the two families formed in overlapping regions of the disk, in agreement with the findings of A’Hearn et al. (2012) and with the predictions of the Nice model (Gomes et al. 2005;Tsiganis et al. 2005). © 2022, CC BY.

关键词： Molecules

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Reliability Analysis for Photoelectric Pods Based on FMEA

Reliability Analysis for Photoelectric Pods Based on FMEA

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Prognostics and system Health Management Conference (PHM-Qingdao)

作者： Ying Zeng Yan-Feng Li Jun Huang Xiaohong Hao Haitao Chen Hong-Zhong Huang Center for System Reliability and Safety University of Electronic Science and Technology of China Chengdu Sichuan P.R. China State Key Laboratory of Space Power-sources Technology Shanghai China

ISBN: (数字)9781728159461

ISBN: (纸本)9781728159478

Photoelectric pods are usually opto-mechanical integration systems used in motion carrier systems such as vehicles, ships, aircraft, missiles and satellites. It generally has the capabilities of multi-spectral comprehensive detection, isolation of carrier perturbation, and keeping the optical axis pointing in space, as well as the ability to capture, track, aim, and locate targets. The photoelectric pod is equivalent to human eyes for weapons and equipment. Once a failure occurs, it may cause the loss of equipment function, and even incalculable loss. Therefore, in this paper, we analyze the reliability of common optoelectronic pods using the Failure Mode and Effects Analysis (FMEA), and then obtain its key component and weak link. This research can be a good basis for further investigating the reliability of optoelectronic pods.

关键词： Optical losses Missiles Target tracking Satellites Perturbation methods Reliability engineering Prognostics and health management

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Climatic and Biotic Controls of Evapotranspiration Across Grassland Ecosystems on Tibetan Plateau

SSRN

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SSRN 2024年

作者： Peng, Siyuan Yang, Yue Luo, Dengnan Zeng, Xiang Liang, Minqi Tao, Long Zhang, Guangru Li, Pan Liao, Weijie Guo, Qun Cao, Ruochen Li, Yuzhe Zhang, Weirong Hu, Zhongmin School of Geography South China Normal University Shipai Campus Guangzhou510631 China Hainan Baoting Tropical Rainforest Ecosystem Observation and Research Station School of Ecology Hainan University Haikou570228 China Facility of Geographical Science Beijing Normal University Beijing100875 China Zhuhai Branch State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Zhuhai519087 China School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon Cycle Sun Yat-sen University Guangdong Zhuhai510245 China Key Lab of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing101408 China International Institute for Earth System Sciences Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing University Jiangsu 210023 China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications Ministry of Natural Resources School of Geography and Ocean Science Nanjing University Jiangsu 210023 China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China

Comprehending the spatial variations of evapotranspiration (ET) and its components on Tibetan Plateau (TP) is crucial for grasping the dynamics of the regional water cycle and energy balance. However, the influence of various environmental factors on ET and its components remains unclear. This study addresses this gap by utilizing observational data from 14 sites and employing the Shuttleworth-Wallace-Hu (SWH) model to examine the spatial relationships between ET, its components, and influencing factors. The SWH model parameters were optimized using the Monte Carlo method, achieving a satisfactory simulation performance with an average R2 value of 0.75. Our analysis indicates that in alpine meadow, the ratio of transpiration to ET is generally higher (0.55) compared to alpine steppe (0.39). In terms of spatial distribution, both precipitation and leaf area index significantly impact ET and transpiration. Precipitation emerges as the primary driver of interannual spatial variations in ET, while leaf area index plays a pivotal role in regulating proportion of transpiration. Furthermore, our results reveal a transition from water-dominated to energy-dominated in TP grassland ecosystem at an aridity index of 0.73. This finding is significant as it challenges the common application of an aridity index of 0.65 to distinguish arid from humid regions. It suggests that TP grassland, within the 0.65-0.73 range, remain primarily water-driven. These findings enhance our comprehension of the intricate interactions within the water cycle. © 2024, The Authors. All rights reserved.

关键词： Evapotranspiration

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