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The mini-GWAC optical follow-up of gravitational wave alerts – results from the O2 campaign and prospects for the upcoming O3 run

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Research in Astronomy and Astrophysics 2020年第1期20卷 107-123页

作者： Damien Turpin Chao Wu Xu-Hui Han Li-Ping Xin Sarah Antier Nicolas Leroy Li Cao Hong-Bo Cai Bertrand Cordier Jin-Song Deng Wen-Long Dong Qi-Chen Feng Lei Huang Lei Jia Alain Klotz Cyril Lachaud Hua-Li Li En-Wei Liang Shun-Fang liu Xiao-Meng Lu Xian-Min Meng yu-Lei Qiu Hui-Juan Wang Jing Wang Shen Wang Xiang-Gao Wang jian-yan Wei Bo-Bing Wu yu-Jie Xiao Da-Wei Xu yang Xu yuan-Gui yang Pin-Pin Zhang Ruo-Song Zhang Shuang-nan Zhang Ya-Tong ZhengandSi-Cheng Zou Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China LAL Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayF-91898 OrsayFrance APC Univ Paris DiderotCNRS/IN2P3CEA/lrfuObs de ParisSorbonne Paris CiteFrance CEA Saclay DRF/IRFU/Departement d’astrophysique91191 Gif-sur-YvetteFrance School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 101408China Universite de Toulouse IRAP 14 Av.Edouard BelinF-31000 ToulouseFrance Institut de Recherche en Astrophysique et Planetologie(IRAP) UPS-OMPToulouseFrance Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China School of Physics and Electronic Information Huaibei Normal UniversityHuaibei 235000China

The second(O2)observational campaign of gravitational waves(GWs)organized by the LIGO/Virgo Collaborations has led to several breakthroughs such as the detection of GW signals from merger systems involving black holes or neutrons *** O2,14 GW alerts were sent to the astronomical community with sky regions mostly covering over hundreds of square *** them,six were finally confirmed as real astrophysical *** 2013,a new set of ground-based robotic telescopes called Ground-based Wide Angle Camera system(GWAC)project and its pathfinder mini-GWAC has been developed to contribute to the various challenges of multi-messenger and time domain *** GWAC system is built up in the framework of the ground-segment system of the SVOM mission that will be devoted to the study of the multi-wavelength transient sky in the next *** O2,only the mini-GWAC telescope network was fully *** to the wide field of view and fast automatic follow-up capabilities of the mini-GWAC telescopes,they were adept to efficiently cover the sky localization areas of GW event *** this paper,we present the mini-GWAC pipeline we have set up to respond to GW alerts and we report our optical follow-up observations of eight GW alerts detected during the O2 *** observations provided the largest coverage of the GW localization areas with a short latency made by any optical *** found tens of optical transient candidates in our images,but none of those could be securely associated with any confirmed black hole-black hole merger *** on this first experience and the near future technical improvements of our network system,we will be more competitive in detecting the optical counterparts from some GW events that will be identified during the upcoming O3 run,especially those emerging from binary neutron star mergers.

关键词： gravitational waves methods:data analysis methods:observational (stars:)gammaray burst:general

Asymptomatic patients of chronic obstructive pulmonary disease in China

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Chinese Medical Journal 2010年第12期123卷 1494-1499页

作者： LU Ming YAO Wan-zhen ZHONG nan-shan ZHOU yu-min WANG Chen CHEN Ping KANG jian HUANG Shao-guang CHEN Bao-yuan WANG Chang-zheng NI Dian-tao WANG Xiao-ping WANG Da-li liu Sheng-ming Lv Jia-chun SHEN Ning DING yan-ling RAN Pi-xin Department of Respiratory Medicine Peking University Third Hospital Beijing 100191 China Department of Respiratory Medicine State Key Laboratory of Respiratory Disease Guangzhou Institute of Respiratory Diseases First Affiliated Hospital Guangzhou Medical University Guangzhou. Guangdong 510182. China Department of Respiratory Medicine Beijing Institute of Respiratory Medicine Beijing Chao-Yang Hospital Capital Medical University Beijing 100020 China Department of Respiratory Medicine Shenyang Military General Hospital Shenyang Liaoning 110016 China Department of Respiratory Medicine First Affiliated Hospital of China Medical University Shenyang Liaoning 110001 China Department of Respiratory Medicine Ruijin Hospital of Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Respiratory Medicine Tianjin Medical University General Hospital Tianjin 300052 China Department of Respiratory Medicine Xinqiao Hospital of Third Military Medical University Chongqing 400037 China Department of Respiratory Medicine Xijing Hospital of Fourth Military Medical University Xi'an Shaanxi 710032 China Department of Respiratory Medicine First Municipal People Hospital of Shaoguan Shaoguan Guangdong 512000 China Department of Respiratory Medicine Second Hospital of Liwan District of Guangzhou Guangzhou Guangdong 510160 China Department of Respiratory Medicine First Affiliated Hospital of Jinan University Guangzhou Guangdong 510630 China Department of Epidemiology Guangzhou Medical University Guangzhou Guangdong 510182 China

Background Chronic obstructive pulmonary disease （COPD） has a variable natural history and not all individuals follow the same course. This study aimed to identify the prevalence and characteristics of asymptomatic COPD patients from a population-based survey in *** A multistage cluster sampling strategy was used in a population from seven different provinces/cities. All residents （over 40 years old） were interviewed with a standardized questionnaire and ***-bronchodilator forced expiratory volume in 1 second （FEV1）/forced vital capacity （FVC） of less than 70% was defined as the diagnostic criterion of COPD. All COPD patients screened were divided into symptomatic group and asymptomatic group according to the presence or absence of chronic respiratory symptoms. Socio-demographic,personal and exposure variables were collected and *** Among the 1668 patients who were diagnosed with COPD from the 25 627 sampling subjects, 589 （35.3%）were asymptomatic. The age, sex, body mass index （BMI）,rural and urban distributions, smoking habit and education levels were similar in the two groups. A total of 64.7% of the asymptomatic patients had no comorbidities. Cardiovascular diseases and lung cancer were more common among symptomatic COPD patients than asymptomatic *** COPD group were less likely to present with poor ventilation in the kitchen, a family history of respiratory disease and recurrent childhood cough. Asymptomatic COPD patients had significantly higher FEV1 （73.1% vs. 61.0%）, FVC （91.9% vs. 82.0%）, and a higher ratio of FEV1/FVC （62.9% vs.58.7%）（all P 〈0.001） than symptomatic group. More asymptomatic patients were underdiagnosed （91.9% vs.54.3%, P〈0.001） than symptomatic *** This large population-based survey confirmed a high prevalence of asymptomatic COPD patients in China. More use of spirometry screening test may be important to the early detection of COPD.

关键词： chronic bronchitis chronic obstructive pulmonary disease respiratory spirometry screening

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边缘化粒子概率假设密度滤波的多目标跟踪

火力与指挥控制 2017年第5期42卷 14-18,22页

作者：于洋宋建辉刘砚菊司冠楠沈阳理工大学自动化与电气工程学院沈阳110159

针对复杂情况下的多目标跟踪问题,提出一种边缘化粒子概率假设密度滤波(MPF-PHD)方法。该方法首先将复杂情况下多个目标的状态向量分别提取出其中的非线性状态与线性状态。然后利用粒子概率假设密度滤波(PF-PHD)估计非线性状态,利用卡... 详细信息

针对复杂情况下的多目标跟踪问题,提出一种边缘化粒子概率假设密度滤波(MPF-PHD)方法。该方法首先将复杂情况下多个目标的状态向量分别提取出其中的非线性状态与线性状态。然后利用粒子概率假设密度滤波(PF-PHD)估计非线性状态,利用卡尔曼滤波(KF)估计线性状态,并把其中与非线性状态相关的线性状态估计用来优化非线性状态估计。通过对MPF-PHD方法与传统的PF-PHD方法仿真对比,验证了MPF-PHD方法有效解决了复杂情况下多目标跟踪的漏检问题,提高了多目标状态估计精度。

关键词：边缘化粒子概率假设密度滤波多目标跟踪非线性状态估计卡尔曼滤波

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疏血通注射液临床安全性的系统分析

中国中药杂志 2012年第18期37卷 2782-2785页

作者：郭新峰温泽淮谢雁鸣刘少南李振宇陈达灿广东省中医院广州中医药大学第二附属医院广州中医药大学第二临床医学院广东省中医药科学院广东广州510120 广州中医药大学广东广州510405 中国中医科学院中医临床基础医学研究所北京100700

目的:全面了解疏血通注射液的不良反应(adverse drug reaction,ADR)发生情况和相关因素,为疏血通注射液临床合理应用和上市后的再评价提供参考。方法:通过计算机检索国内外医学期刊数据库,根据纳入排除标准选取文献,并提取资料,按不同... 详细信息

目的:全面了解疏血通注射液的不良反应(adverse drug reaction,ADR)发生情况和相关因素,为疏血通注射液临床合理应用和上市后的再评价提供参考。方法:通过计算机检索国内外医学期刊数据库,根据纳入排除标准选取文献,并提取资料,按不同类别分别计算疏血通注射液ADR发生数,根据有对照的临床研究中可获得的用药人数与ADR病例数估算ADR发生率。结果:共纳入88篇涉及疏血通注射液不良反应报告的文献,其中临床研究65篇,个案报告20篇,不良反应监测或分析报告3篇;共计报告不良反应174例;疏血通注射液不良反应涉及的系统或器官主要集中在循环系统、神经系统、消化系统、皮肤及其附属器;不良反应类型主要以皮疹(44.3%)以及消化系统反应(23.0%)为主;65篇有对照组的临床研究文献分析显示不良反应发生率为4.3%。结论:疏血通注射液不良反应以过敏反应为主;多个研究疏血通ADR的发生率差别大,有必要进行严格设计的前瞻性ADR监测重新评估疏血通的ADR发生率、分析不同研究间异质性的可能原因;文献中安全性的信息缺失严重,报告质量不高,建议在临床试验中加强主动、规范、系统的不良反应报告。

关键词：疏血通注射液不良反应临床研究个案报告

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急性大鼠脊髓腹侧压迫伤的模型制备

中华实验外科杂志 2010年第11期27卷 1740-1742页

作者：李剑锋闫金玉张飞张旭刘遵南内蒙古医学院第二附属医院康复科呼和浩特010030 内蒙古自治区医院普外二科

目的建立急性压迫型大鼠前脊髓综合征模型.方法将Wistar大鼠放置腹侧致伤钩对其腹侧脊髓形成压迫,造成不同程度脊髓损伤模型,并进行行为学及神经电生理评价.结果造模后各实验组斜板角度分别为A组（52.89±7.31） B组（47.08±7.27） ... 详细信息

目的建立急性压迫型大鼠前脊髓综合征模型.方法将Wistar大鼠放置腹侧致伤钩对其腹侧脊髓形成压迫,造成不同程度脊髓损伤模型,并进行行为学及神经电生理评价.结果造模后各实验组斜板角度分别为A组（52.89±7.31） B组（47.08±7.27） C组（41.32±7.85） BBB评分分别为A组（8.47±4.14） B组（3.48±3.17） C组（0.83±3.06）均较假手术组明显减小（P＜0.01）,轻、中、重度损伤组之间差异有统计学意义（P＜0.05）.手术8周后各实验组MEP的潜伏期明显高于对照组（P＜0.05）,各实验组间差异有统计学意义（P＜0.05）重度损伤组MEP的潜伏期为（5.74±0.12）,明显高于对照组（P＜0.05）.结论前脊髓损伤综合征模型出现明显的行为学、神经电生理及病理学改变,而且可以制备出不同程度前脊髓损伤综合征模型.

关键词：急性前脊髓综合征压迫模型动物

厚壳贻贝(Mytilus coruscus)养殖区沉积物微生物多样性及固碳潜力研究

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海洋与湖沼 2023年第2期54卷 502-513页

作者：吴紫琪何语堂羊妍珂陶玉林吴骏男蒋振楠严小军廖智刘雪珠何建瑜浙江海洋大学海洋科学与技术学院、海洋生物资源与分子工程实验室浙江舟山316022

海洋蓝碳是海洋碳汇研究的重要领域,厘清不同蓝碳生境中沉积物有机碳组分格局是当前研究的热点之一。为更好地理解此问题,现以近海厚壳贻贝养殖区这一特殊蓝碳生境为对象,解析沉积物中的碳氮组分格局;进一步通过关联沉积物微生物群落、... 详细信息

海洋蓝碳是海洋碳汇研究的重要领域,厘清不同蓝碳生境中沉积物有机碳组分格局是当前研究的热点之一。为更好地理解此问题,现以近海厚壳贻贝养殖区这一特殊蓝碳生境为对象,解析沉积物中的碳氮组分格局;进一步通过关联沉积物微生物群落、结合卡尔文循环和还原三羧酸循环的关键基因相对丰度分析,评估厚壳贻贝养殖区沉积物的固碳潜力。结果表明,相较于非养殖区,厚壳贻贝养殖区沉积物惰性碳的累积较大,氮组分主要以氨氮形式存在;同时养殖区高微生物量碳和微生物量氮指示了其沉积物中碳周转较快,碳氮组分特征差异明显。沉积物微生物高通量测序结果显示养殖区沉积物微生物主要以Gamma变形菌纲和Delta变形菌纲为主,且微生物类群与颗粒有机碳、惰性碳等碳组分存在明显的相关性。与惰性碳存在明显正相关关系的硫微螺菌科(Thiomicrospiraceae)丰度在养殖区沉积物中显著高于非养殖区沉积物。贻贝养殖区沉积物包含cbbL在内的6种关键功能基因,固碳潜力明显。研究结果将为进一步探究蓝碳生境的有机碳来源和微生物固碳效率提供基础依据。

关键词：厚壳贻贝沉积物微生物多样性固碳

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基于密度泛函理论的叶绿素A性质的研究

原子与分子物理学报 2017年第4期34卷 581-586页

作者：林艳刘芸魏晓楠彭清维于建成唐延林贵州大学物理学院贵阳550025

在液相环境中,采用密度泛函理论(DFT)、含时密度泛函理论(TD-DFT)、Multiwfn波函数分析软件,在pbepbe/6-311g(d)基组水平上,计算并分析了叶绿素A的结构、紫外光谱和电子—空穴分布,结果表明:pbepbe/6-311g(d)方法是计算叶绿素A紫外吸收... 详细信息

在液相环境中,采用密度泛函理论(DFT)、含时密度泛函理论(TD-DFT)、Multiwfn波函数分析软件,在pbepbe/6-311g(d)基组水平上,计算并分析了叶绿素A的结构、紫外光谱和电子—空穴分布,结果表明:pbepbe/6-311g(d)方法是计算叶绿素A紫外吸收光谱更精确的方法;叶绿素A分子的吡咯环与取代基相互作用的过程中,吡咯环Ⅳ受侧链"尾巴"的影响最大;理论计算的紫外光谱与实验数据吻合较好,其中635.71 nm和446.87 nm处的两个吸收峰可认为是叶绿素A的特征吸收峰;侧链或取代基团在叶绿素A激发过程中是给电子体,卟啉"头"既是电子供体,也是电子受体.

关键词：叶绿素A 密度泛函理论紫外光谱

Artificial intelligence for geoscience:Progress,challenges,and perspectives

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The Innovation 2024年第5期5卷 136-160,135页

作者： Tianjie Zhao Sheng Wang Chaojun Ouyang Min Chen Chenying liu Jin Zhang Long yu Fei Wang Yong Xie Jun Li Fang Wang Sabine Grunwald Bryan MWong Fan Zhang Zhen Qian Yongjun Xu Chengqing yu Wei Han Tao Sun Zezhi Shao Tangwen Qian Zhao Chen jiangyuan Zeng huai Zhang Husi Letu Bing Zhang Li Wang Lei Luo Chong Shi Hongjun Su Hongsheng Zhang Shuai Yin Ni Huang Wei Zhao nan Li Chaolei Zheng yang Zhou Changping Huang Defeng Feng Qingsong Xu yan Wu Danfeng Hong Zhenyu Wang Yinyi Lin Tangtang Zhang Prashant Kumar Antonio Plaza Jocelyn Chanussot Jiabao Zhang jiancheng Shi Lizhe Wang Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China School of Computer Science China University of GeosciencesWuhan 430078China State Key Laboratory of Mountain Hazards and Engineering Resilience Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610299China Key Laboratory of Virtual Geographic Environment(Ministry of Education of PRC) Nanjing Normal UniversityNanjing 210023China Data Science in Earth Observation Technical University of Munich80333 MunichGermany The National Key Laboratory of Water Disaster Prevention Yangtze Institute for Conservation and DevelopmentHohai UniversityNanjing 210098China Institute of Computing Technology Chinese Academy of SciencesBeijing 100190China School of Geographical Sciences Nanjing University of Information Science and TechnologyNanjing 210044China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Soil Water and Ecosystem Sciences DepartmentUniversity of FloridaPO Box 110290GainesvilleFLUSA Materials Science Engineering Program Cooperating Faculty Member in the Department of Chemistry and Department of Physics Astronomy University of CaliforniaCaliforniaRiversideCA 92521USA Institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijing 100871China Key Laboratory of Computational Geodynamics University of Chinese Academy of SciencesBeijing 100049China International Research Center of Big Data for Sustainable Development Goals Beijing 100094China College of Geography and Remote Sensing Hohai UniversityNanjing 211100China Department of Geography The University of Hong KongHong Kong 999077SARChina jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Nanjing 210044China School of Environmental Science and Engineering Nanjing University of Information Science&TechnologyNanjing 210044China Collaborative Inno

This paper explores the evolution of geoscientific inquiry,tracing the progression from traditional physics-based models to modern data-driven approaches facilitated by significant advancements in artificial intelligence(AI)and data collection *** models,which are grounded in physical and numerical frameworks,provide robust explanations by explicitly reconstructing underlying physical ***,their limitations in comprehensively capturing Earth’s complexities and uncertainties pose challenges in optimization and real-world *** contrast,contemporary data-driven models,particularly those utilizing machine learning(ML)and deep learning(DL),leverage extensive geoscience data to glean insights without requiring exhaustive theoretical *** techniques have shown promise in addressing Earth science-related ***,challenges such as data scarcity,computational demands,data privacy concerns,and the“black-box”nature of AI models hinder their seamless integration into *** integration of physics-based and data-driven methodologies into hybrid models presents an alternative *** models,which incorporate domain knowledge to guide AI methodologies,demonstrate enhanced efficiency and performance with reduced training data *** review provides a comprehensive overview of geoscientific research paradigms,emphasizing untapped opportunities at the intersection of advanced AI techniques and *** examines major methodologies,showcases advances in large-scale models,and discusses the challenges and prospects that will shape the future landscape of AI in *** paper outlines a dynamic field ripe with possibilities,poised to unlock new understandings of Earth’s complexities and further advance geoscience exploration.

关键词： Earth utilizing landscape

The In-Flight Realtime Trigger and Localization Software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： Xiao-yun Zhao Shao-Lin Xiong Xiang-yang Wen Xin-Qiao Li Ce Cai Shuo Xiao Qi Luo Wen-Xi Peng Dong-Ya Guo Zheng-Hua An Ke Gong Jin-yuan Liao yan-Qiu Zhang yue Huang Lu Li Xing Wen Fei Zhang Jing Duan Chen-Wei Wang Dong-Li Shi Peng Zhang Qi-Bin Yi Chao-yang Li yan-Bing Xu Xiao-Hua Liang Ya-Qing liu Da-Li Zhang Xi-Lei Sun Fan Zhang Gang Chen Huan-yu Wang Sheng yang Xiao-Jing liu Min Gao Mao-Shun Li Jin-Zhou Wang Xing Zhou Yi Zhao Wang-Chen Xue Chao Zheng Jia-Cong liu Xing-Bo Han Jin-Ling Qi Jia Huang Ke-Ke Zhang Can Chen Xiong-Tao yang Dong-Jie Hou yu-Sa Wang Rui Qiao Xiang Ma Xiao-Bo Li Ping Wang Xin-Ying Song Li-Ming Song Shi-Jie Zheng Bing Li Hong-Mei Zhang yue Zhu Wei Chen jian-jian He Zhen Zhang Jin Hou Hong-Jun Wang yan-Chao Hao Xiang-yu Wang Zong-yuan yang Zhi-Long Wen Zhi Chang yuan-yuan Du Rui Gao Xiao-Fei Lan yan-Guo Li Gang Li Xu-Fang Li Fang-Jun Lu Hong Lu Bin Meng Feng Shi Hui Wang Hui-Zhen Wang yu-Peng Xu Jia-Wei yang Xue-Juan yang Shuang-nan Zhang Chao-yue Zhang Cheng-Mo Zhang Zhi-Cheng Tang Cheng Cheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China School of Information Science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Physics and Space Science College China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China Changchun University of Science and Technology Changchun 130022China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2020 December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational