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The detection, extraction and parameter estimation of extreme-mass-ratio inspirals with deep learning

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 86-96页

作者： Qianyun Yun Wen-Biao Han Yi-Yang Guo He Wang Minghui Du Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Shanghai Astronomical Observatory Chinese Academy of Sciences School of Physics and Astronomy Shanghai Jiao Tong University School of Astronomy and Space Science University of Chinese Academy of Sciences Taiji Laboratory for Gravitational Wave Universe (Beijing/Hangzhou) University of Chinese Academy of Sciences Lanzhou center for Theoretical Physics Key Laboratory of Theoretical Physics of Gansu Province Key Laboratory of Quantum Theory and Applications of MoE Lanzhou University Institute of Theoretical Physics & Research center of Gravitation Lanzhou University international Centre for Theoretical Physics Asia-Pacific (ICTP-AP) University of Chinese Academy of Sciences (UCAS) center for Gravitational Wave Experiment National Microgravity Laboratory Institute of Mechanics Chinese Academy of Sciences

One of the primary goals of space-borne gravitational wave detectors is to detect and analyze extreme-mass-ratio inspirals(EMRIs). This task is particularly challenging because EMRI signals are complex, lengthy, and faint. In this work, we introduce a2-layer convolutional neural network(CNN) approach to detect EMRI signals for space-borne detectors, achieving a true positive rate(TPR) of 96.9% at a 1% false positive rate(FPR) for signal-to-noise ratio(SNR) from 50 to 100. Especially, the key intrinsic parameters of EMRIs such as the mass, spin of the supermassive black hole(SMBH) and the initial eccentricity of the orbit can also be inferred directly by employing a neural network. The mass and spin of the SMBH can be determined at 99% and 92% respectively. This will greatly reduce the parameter spaces and computing cost for the following Bayesian parameter *** model also has a low dependency on the accuracy of the waveform model. This study underscores the potential of deep learning methods in EMRI data analysis, enabling the rapid detection of EMRI signals and efficient parameter estimation.

关键词： gravitational wave EMRIs deep-learing

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Geoeconomics with Chinese characteristics: the BRI and China’s evolving grand strategy

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Economic and Political Studies 2018年第3期6卷 240-256页

作者： Mark Beeson Political Science and international relations University of Western AustraliaPerthAustralia

China has become the second largest economy in the world in a historically unprecedented space of ***,China has begun to exert a form of geoeconomic influence that is changing the way we think about both the nature of international relations in the 21st century and about the precise uses China’s policymakers will put their growing power *** paper explores these debates and China’s evolving approach to foreign and strategic policies through the prism of the Belt and Road Initiative(BRI).If the BRI becomes a reality it will quite literally cement China’s place at the centre of a regional network of production processes that will inevitability enhance China’s overall economic and geopolitical *** the very least,China’s ascent is forcing a reassessment about the nature of power and influence in the contemporary international *** only is the nature of economic organisation currently raising important theoretical and practical questions about the basis of international competition,but it is also becoming increasingly clear that the power and influence of national governments are largely determined by relative shifts in the balance of economic power,as much as it is by more traditional strategic factors.

关键词： Belt and Road Initiative grand strategy geoeconomics geopolitics rise of China

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The Governance of the Chaotic international Security

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Contemporary international relations 2017年第3期27卷 60-74页

作者： Lin Limin Yuan Kao Department of international relations University of International Relations CICIR

After the Cold War ended, former traditional security threats withered while non-traditional ones sprouted. More recently as both traditional and non-traditional security threats bloom, concern spreads over whether international security governance can be effective. Worse still, major Western countries' zeal for global governance has cooled,while they turn from being advocates of global governance to obstacles,making the future dimmer.

关键词： global security governance global governance global security threats

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The Rise of the Far Right in Europe and the Refugee Crisis

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Contemporary international relations 2017年第2期27卷 92-106页

作者： Luo Yingjie Zhang Zhaoxi the Department of international Politics University of International Relations University of international relations

The rise of the far right in Europe has captured the attention of the international community in recent years. Its specific features are: an unprecedentedly strong influence, an obvious trend towards the moderate line, horizontal collaboration to expand its reach, and a very adept use of social media networks. The refugee crisis has given the far right an historical opportunity. The rise has also had a profound effect on European politics; it has deepened the political divide inside EU member states, and shaken up the traditional political values and the foundation of the *** rise of the far right will likely not change Europe's political landscape, but problems of EU governance over its handling of the refugee crisis cannot be ignored.

关键词： Europe far right political influence refugee crisis

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Seasonal Differences of Model Predictability and the Impact of SST in the Pacific

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Advances in Atmospheric Sciences 2005年第1期22卷 103-113页

作者：郎咸梅王会军 Nansen-Zhu international Research center

Both seasonal potential predictability and the impact of SST in the Pacific on the forecast skill over China are investigated by using a 9-level global atmospheric general circulation model developed at the Institute of Atmospheric Physics under the Chinese Academy of Sciences (IAP9L-AGCM). For each year during 1970 to 1999, the ensemble consists of seven integrations started from consecutive observational daily atmospheric fields and forced by observational monthly SST. For boreal winter, spring and summer, the variance ratios of the SST-forced variability to the total variability and the differences in the spatial correlation coefficients of seasonal mean fields in special years versus normal years are computed respectively. It follows that there are slightly inter-seasonal differences in the model potential predictability in the Tropics. At northern middle and high latitudes, prediction skill is generally low in spring and relatively high either in summer for surface air temperature and middle and upper tropospheric geopotential height or in winter for wind and precipitation. In general, prediction skill rises notably in western China, especially in northwestern China, when SST anomalies (SSTA) in the Nino-3 region are significant. Moreover, particular attention should be paid to the SSTA in the North Pacific (NP) if one aims to predict summer climate over the eastern part of China, i.e., northeastern China, North China and southeastern China.

关键词： predictability IAP9L-AGCM sea surface temperature

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Solving Challenges to China's Periphery Diplomacy

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Contemporary international relations 2013年第6期23卷 46-49页

作者： Zhao Xiaochun Li Hongli the center for international Strategy and Security Studies the University of International Relations

In recent years,as the *** shifted its strategic focus eastward,maritime and territorial disputes between China and several other countries have worsened and a number of China’s neighbors have adjusted their China **... 详细信息

关键词：中国领土争端安全环境

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Smart Cellulose‑Based Janus Fabrics with Switchable Liquid Transportation for Personal Moisture and Thermal Management

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Nano-Micro Letters 2025年第1期17卷 333-347页

作者： Jianfeng Xi Yanling Lou Liucheng Meng Chao Deng Youlu Chu Zhaoyang Xu Huining Xiao Weibing Wu Jiangsu Co‑Innovation center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsJiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass MaterialsNanjing Forestry UniversityNanjing 210037People’s Republic of China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering University of New BrunswickFrederictonNB E3B 5A3Canada Macromolecular Chemistry and Bavarian Polymer Institute University of BayreuthBayreuth 95440Germany

The Janus fabrics designed for personal moisture/thermal regulation have garnered significant attention for their potential to enhance human ***,the development of smart and dynamic fabrics capable of managing personal moisture/thermal comfort in response to changing external environments remains a ***,a smart cellulose-based Janus fabric was designed to dynamically manage personal moisture/*** cotton fabric was grafted with N-isopropylacrylamide to construct a temperature-stimulated transport ***,hydrophobic ethyl cellulose and hydrophilic cellulose nanofiber were sprayed on the bottom and top sides of the fabric to obtain wettability *** fabric exhibits anti-gravity directional liquid transportation from hydrophobic side to hydrophilic side,and can dynamically and continuously control the transportation time in a wide range of 3–66 s as the temperature increases from 10 to 40℃.This smart fabric can quickly dissipate heat at high temperatures,while at low temperatures,it can slow down the heat dissipation rate and prevent the human from becoming too *** addition,the fabric has UV shielding and photodynamic antibacterial properties through depositing graphitic carbon nitride nanosheets on the hydrophilic *** smart fabric offers an innovative approach to maximizing personal comfort in environments with significant temperature variations.

关键词： Directional water transport Cotton fabric Anti-gravity directional liquid transportation Janus wettability

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Characterization of QTL for unique agronomic traits of new-plant-type rice varieties using introgression lines of IR64

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The Crop Journal 2016年第1期4卷 12-20页

作者： Analiza G.Tagle Daisuke Fujita Leodegario A.Ebron Mary Jeanie Telebanco-Yanoria Kazuhiro Sasaki Tsutomu Ishimaru Yoshimichi Fukuta Nobuya Kobayashi international Rice Research Institute Japan international Research center for Agricultural Sciences

To enhance the yield potential of an elite indica rice cultivar,an introgression(BC_3-derived) line of IR64,YTH288,was developed using a new-plant-type cultivar,IR66215-44-2-3,as a donor ***288 has agronomically valuable characteristics such as large panicles,few unproductive tillers,and large leaves inherited from *** identify the genetic basis of these traits,we used 167 F_2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits:days to heading(DTH),culm length(CL),flag leaf length(FLL),flag leaf width(FLW),and filled spikelet number per panicle(FSN).Six putative QTL were detected:four on chromosome4(for CL,FLL,FLW,and FSN) and two on chromosome 2(for DTH and FLL).All QTL with the IR66215-44-2-3 allele,except that for FLL on chromosome 2,had positive effects on each *** confirm the effects of these putative QTL,we developed NILs with the IR64 genetic background by marker-assisted *** observed significant differences in several agronomic traits between IR64 and NILs that carried these QTL on chromosomes2 and ***,four IR64-NILs carrying chromosomal segments derived from different NPT varieties on the long arm of chromosome 4 exhibited similar pleiotropic To enhance the yield potential of an elite indica rice cultivar, an introgression(BC3-derived) line of IR64, YTH288, was developed using a new-plant-type cultivar,IR66215-44-2-3, as a donor parent. YTH288 has agronomically valuable characteristics such as large panicles, few unproductive tillers, and large leaves inherited from *** identify the genetic basis of these traits, we used 167 F2 plants derived from a cross between IR64 and YTH288 to conduct QTL analysis for five agronomic traits: days to heading(DTH), culm length(CL), flag leaf length(FLL), flag leaf width(FLW), and filled spikelet number per panicle(FSN). Six putative QTL were detected: four on chromosome4(for CL, FLL, FLW, and FSN) and two on chromosome 2(for DTH and FL

关键词： Agronomic traits Quantitative trait loci Near-isogenic lines New-plant-type rice variety Pleiotropic effect

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The BRI in the Report at 19th CPC National Congress and Its relationship with SDGs in UN 2030 Agenda

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学术界 2018年第4期 225-237页

作者： Cui Wenxing Ye Jiang Department of international relations Shanghai University ofinternational Business and Economics Shanghai 201620 Shanghai Institutes for international Studies Shanghai 200233

The Belt and Road Initiative(BRI) is China's important development agenda being stressed several times in the Report at 19 th CPC National Congress. This paper is aimed to analyze the links between China's BRI and the UN 2030 Agenda especially how the former can contribute to the implementation of the SDGs. First,the article discusses how the BRI is delivered in the Report at 19 th CPC National Congress. Secondly,the paper examines the relationship between BRI and SDGs in terms of their spirit and principle,and discusses the priorities of the BRI. Thirdly,it explores the links between the priorities of the BRI and the 17 SDGs in 2030 Agenda while roughly discussing the role of PC SD in them.

关键词： BRI SDG CPC 联合国优先级中国连接

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Globalization,Industrialization and Economic Catch-Up

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China Economist 2020年第6期15卷 27-38页

作者： Zheng Yu School of international relations and Public Affairs(SIRPA) Fudan UniversityShanghaiChina

Industrialization was an essential path to modernization for early industrialized *** the 1990s,however,premature deindustrialization has swept across much of the developing world,where industry contributed less to job creation and economic *** developing countries still have opportunity to achieve economic growth and catch-up through industrialization?This article contends that the traditional path of industrialization has become more elusive in the era of globalization but the changing global economy and technological progress create new opportunities for developing *** today’s interconnected world,China’s economic rise has great implications for other developing *** article finds that China’s emergence as the world’s workshop has helped rather than hurt industrial development in Africa through two-way trade,but its impact may differ across the African continent,Africa’s industrial path may not follow an exportoriented ***,Africa’s future sustainability depends on its adoption of a diversified industrial policy.

关键词： globalization industrialization economic development industrial policy Africa

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