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基于Gauss-Listing大地水准面定义的地球重力场模型评价方法
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作者 丁剑 许厚泽 章传银 《大地测量与地球动力学》 CSCD 北大核心 2017年第1期5-10,共6页
提出一种基于Gauss-Listing大地水准面经典定义的地球重力场模型评价方法。该方法依据经典大地水准面为重力等位面的特性,选取某大地水准面为参考面,计算不同地球重力场模型在该参考面上的重力位标准差,以此作为不同模型相对优劣的评价... 提出一种基于Gauss-Listing大地水准面经典定义的地球重力场模型评价方法。该方法依据经典大地水准面为重力等位面的特性,选取某大地水准面为参考面,计算不同地球重力场模型在该参考面上的重力位标准差,以此作为不同模型相对优劣的评价指标。利用该方法对不同地球重力场模型以及同一重力场模型在不同区域的精度进行评价,结果表明,EGM96模型、OSU91A模型的大地水准面精度分别为±11.1cm、±14.3cm,EGM2008模型、EIGEN-6C4模型分别为±8.8cm、±8.9cm,说明后2个模型的精度相当,且优于前2个模型。该模型评价方法的研究结果显示,对于某全球大地水准面,EGM2008模型和EIGEN-6C4模型的大地水准面精度分别为±11.3cm和±14.1cm,即在cm级精度上EGM2008模型略优。 展开更多
关键词 Gauss—listing大地水准面经典定义 地球重力场模型 重力位标准差 精度评价
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基于亚马逊平台的在线listing界面优化对策 被引量:1
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作者 唐艳 崔丽芳 《现代商业》 2020年第9期41-43,共3页
在"一带一路"倡议支持下,跨境电商作为一种新业态模式得到快速发展,越来越多地企业将海外市场开拓作为核心战略,并注重通过跨境电商平台进军国际市场。跨境电商运营的本质就是流量的变现过程,而在线listing优化一直是跨境电... 在"一带一路"倡议支持下,跨境电商作为一种新业态模式得到快速发展,越来越多地企业将海外市场开拓作为核心战略,并注重通过跨境电商平台进军国际市场。跨境电商运营的本质就是流量的变现过程,而在线listing优化一直是跨境电商亚马逊平台运营中实现流量变现的手段之一,本文解析跨境电商主流平台亚马逊listing的构成,探讨亚马逊listing的优化的主体思路,并结合企业实际,给出listing界面优化的对策,以资参考。 展开更多
关键词 亚马逊平台 在线listing界面 优化对策
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Study on Chinese companies' perception on overseas public listing
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作者 LIU Wei KANG Xing-hua 《Chinese Business Review》 2007年第6期39-47,共9页
This paper reports an investigation on Chinese companies' perception on overseas public listing. The investigation is mainly based on a questionnaire survey. The result shows that Chinese companies overwhelmingly acc... This paper reports an investigation on Chinese companies' perception on overseas public listing. The investigation is mainly based on a questionnaire survey. The result shows that Chinese companies overwhelmingly accept overseas listing as a preferred option, which may shed some light on other Chinese companies in their evaluation on seeking overseas public listing as a strategic option to the overseas exchanges in their efforts of wooing the Chinese market. 展开更多
关键词 public listing stock exchange IPO
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An Overview of the New Listing Rules and Corporate Governance Best Practice in Sri Lanka
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作者 Chitra Sriyani De Silva Loku Waduge 《Journal of Modern Accounting and Auditing》 2012年第4期569-577,共9页
Corporate governance represents institutional structures and incentive mechanisms that are implemented in order to mitigate the principal-agent problem and to thus promote the long-term competitiveness of the firm. Th... Corporate governance represents institutional structures and incentive mechanisms that are implemented in order to mitigate the principal-agent problem and to thus promote the long-term competitiveness of the firm. The purpose of this paper is to examine the nature of corporate governance best practice and the new listing rules in Sri Lanka. The paper discusses the evolution of the corporate governance best practice giving special reference to the new listing rules in Sri Lanka, Sri Lankan stock market overview and the importance of best practice governance for the developing economy of Sri Lanka. Corporate governance practices in Sri Lanka has made a progress towards best practice, but, this paper argues, that substantial reforms need to be implemented to effectively promote and sustain the accountability and transparency. 展开更多
关键词 corporate governance best practice listing rules Sri Lanka
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ZTE Honoured in BusinessWeek Top IT listings
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《ZTE Communications》 2005年第3期1-1,共1页
关键词 ZTE Honoured in BusinessWeek Top IT listings IT
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A Shares Listing for Foreign Companies:2001 Hard to Say
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《China's Foreign Trade》 2001年第1期41-41,共1页
关键词 A Shares listing for Foreign Companies
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Transnational Capital Competing for Listing in China
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《China's Foreign Trade》 2002年第4期27-27,共1页
关键词 Transnational Capital Competing for listing in China
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An empirical analysis of the external factors influencing the listing intention of Chinese enterprises
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作者 Jiageng Cao Dan Li Xue wang 《中国新通信》 2019年第15期142-143,共2页
Based on the time series data and the actual situation of 1995 ~ 2017, this paper makes an empirical analysis of the external factors of the company’s listed psychology in China. The model which affects the psycholog... Based on the time series data and the actual situation of 1995 ~ 2017, this paper makes an empirical analysis of the external factors of the company’s listed psychology in China. The model which affects the psychological change factors of listed enterprises is obtained, and the test and adjustment are carried out, and some suggestions are put forward for the problems existing in the listing environment of our country. 展开更多
关键词 listing INTENTION MULTIVARIATE regression trend EXTRAPOLATION statistical research
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Re-organization and Listing for Development
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《China Oil & Gas》 CAS 1999年第3期144-144,共1页
关键词 Re-organization and listing for Development
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Listing of Longyuan,Transformation of Guodian
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作者 Zhang Na and Dai Zhemin Wang Ying 《Electricity》 2010年第3期-,共3页
China Longyuan Power was listed on the main board of Hong Kong Stock Exchange in 2009.The successful listing proved the correctness and timeliness of China Guodian's strategy of "leading enterprises to transf... China Longyuan Power was listed on the main board of Hong Kong Stock Exchange in 2009.The successful listing proved the correctness and timeliness of China Guodian's strategy of "leading enterprises to transformation by exploring new energy resources energetically." 展开更多
关键词 list transformation wind power new energy
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智慧城轨车地一体化机电系统标准体系构建研究 被引量:1
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作者 杨廷志 《China Standardization》 2024年第1期56-59,共4页
With the rapid development and application of emerging information technologies such as cloud computing,big data,artificial intelligence,5G,satellite communication,and blockchain in urban rail transit,China’s urban r... With the rapid development and application of emerging information technologies such as cloud computing,big data,artificial intelligence,5G,satellite communication,and blockchain in urban rail transit,China’s urban rail transit has entered an era of intelligent transformation and upgrading.The development of intelligent systems and the construction of smart urban rail transit have formed a consensus in the industry.The electromechanical system is an important component of urban rail transit engineering,covering power supply stations,vehicles,stations,and lines.The depot and control center are important support for promoting the development of urban rail transit towards informatization and intelligence.However,research on the technical standards for the smart urban rail vehicle-ground integrated electromechanical system has just begun,and a technical standards system has not yet been formed,which cannot better support the electromechanical system.Therefore,it is necessary to conduct research on the technical standards system,propose the common criteria structure and standards list of the standards system,which can provide reference and guidance for the planning and establishment of China’s smart urban rail standards system. 展开更多
关键词 smart urban rail vehicles vehicle-ground integration electromechanical system standards system standards list
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The role of cross-listing,foreign ownership and state ownership in dividend policy in an emerging market 被引量:7
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作者 Kevin C.K.Lam Heibatollah Sami Haiyan Zhou 《China Journal of Accounting Research》 2012年第3期199-216,共18页
In this paper, we investigate if dividend policy is influenced by ownership type.Within the dividend literature, dividends have a signaling role regarding agency costs, such that dividends may diminish insider conflic... In this paper, we investigate if dividend policy is influenced by ownership type.Within the dividend literature, dividends have a signaling role regarding agency costs, such that dividends may diminish insider conflicts(reduce free cash flow) or may be used to extract cash from firms(tunneling effect)- which could be predominant in emerging markets. We expect firms with foreign ownership and those that are listed in overseas markets to have different dividend policies and practices than those that are not, and firms with more state ownership and less individual ownership to be more likely to pay cash dividends and less likely to pay stock dividends. Using firms from an emerging economy(China), we examine whether these effects exist in corporate dividend policy and practice. We find that both foreign ownership and cross-listing have significant negative effects on cash dividends, consistent with the signaling effect and the notion of reduced tunneling activities for firms with the ability to raise capital from outside of China. Consistent with the tunneling effect, we find that firms with higher state ownership tend to pay higher cash dividends and lower stock dividends, while the opposite is true for public(individual) ownership.Further analysis shows that foreign ownership mediates the effect of state ownership on dividend policy. Our results have significant implications for researchers, investors, policy makers and regulators in emerging markets. 展开更多
关键词 Agency problems Corporate governance Cash dividends Stock dividends Ownership structure Cross listings Emerging markets
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Call for papers
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《文艺理论研究》 CSSCI 北大核心 2024年第4期F0003-F0003,共1页
Theoretical Studies in Literature and Art (ISSN 0257-0254) is a most highly-recognized peer-reviewed journal in China,and has been listed in Scopus and Ebsco.TSLA,launched in 1980 bimonthly,publishes original articles... Theoretical Studies in Literature and Art (ISSN 0257-0254) is a most highly-recognized peer-reviewed journal in China,and has been listed in Scopus and Ebsco.TSLA,launched in 1980 bimonthly,publishes original articles in Chinese or English in arts and humanities,especially literary studies. 展开更多
关键词 JOURNAL LISTED bimonthly
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Author Correction: ITO-free silicon-integrated perovskite electrochemical cell for light-emission and light-detection
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作者 Maria Baeva Dmitry Gets +8 位作者 Artem Polushkin Aleksandr Vorobyov Aleksandr Goltaev Vladimir Neplokh Alexey Mozharov Dmitry VKrasnikov Albert GNasibulin Ivan Mukhin Sergey Makarov 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2024年第3期50-50,共1页
Correction to:Opto-Electronic Advances https://doi.org/10.29026/oea.2023.220154 published online 26 April 2023 After the publication of this article1,it was brought to our attention that calculations of the PeLEC devi... Correction to:Opto-Electronic Advances https://doi.org/10.29026/oea.2023.220154 published online 26 April 2023 After the publication of this article1,it was brought to our attention that calculations of the PeLEC device elec-troluminescent(EL)efficiency contained a mistake,leading to an inaccurate quantity value.The device’s maxim-um EL efficiency constitutes not‘~120 klm/W’but‘4.3 lm/W’instead.Correction details are listed below. 展开更多
关键词 value. PEROVSKITE LISTED
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Clinical profile and risk factors of Strongyloides stercoralis infection
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作者 Rupak Chatterjee Alisha Acharya +4 位作者 Subhoroop Ghosh Shatavisa Mukherjee Tapashi Ghosh Nandini Chatterjee Netai Pramanik 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2024年第1期43-44,共2页
Strongyloides(S.)stercoralis,endemic in tropical and subtropical countries,is a soil-transmitted geohelminth human parasite belonging to a group of nematodes called roundworms.S.stercoralis is one of the most overlook... Strongyloides(S.)stercoralis,endemic in tropical and subtropical countries,is a soil-transmitted geohelminth human parasite belonging to a group of nematodes called roundworms.S.stercoralis is one of the most overlooked parasitic infections enlisted among the WHO"neglected tropical diseases"[1].S.stercoralis mainly infects humans but can also be found naturally in domestic dogs,cats,and some primates. 展开更多
关键词 TROPICAL SUBTROPICAL LISTED
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Snapshot Survey of the Presence of Perfluoroalkyl Substances in Products, Articles, and the Environment in Ecuador
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作者 Heidelore Fiedler Luis Vega-Bustillos +2 位作者 Jenny Arias-Pastrano Lander Vinicio Pérez-Aldás Jose Castro-Díaz 《Engineering》 SCIE EI CAS CSCD 2024年第6期49-61,共13页
The Stockholm Convention on Persistent Organic Pollutants(POPs)is a legally binding instrument for 186 Parties(status:April 2023).Accordingly,among other responsibilities,countries are obliged to report the production... The Stockholm Convention on Persistent Organic Pollutants(POPs)is a legally binding instrument for 186 Parties(status:April 2023).Accordingly,among other responsibilities,countries are obliged to report the production,import,or export of the POPs listed in Annexes A,B,or C;provide information to registers;maintain inventories;and monitor the presence of POPs in the environment.In the broader context of international chemicals and waste management,producer responsibilities,harmonized reporting,and compliance with national and international regulations,Ecuador has addressed the newly listed group of perfluorinated alkyl substances(PFAS)in its national implementation plan and sent selected products from its national market for PFAS analysis.The products analyzed came from the initially listed fields of specific exemptions and acceptable purposes,including:fire-fighting foams;photographic aids;greasers/degreasers;various kinds of paper/packaging;textiles;and leather,coatings,cleaners,metal plating,and pesticides.Our results showed that the three PFAS presently listed in the Stockholm Convention could be quantified in only a few samples;additional PFAS,not yet listed in the Convention also had low detection frequencies.Although the number of samples was limited,the samples covered a large spectrum of sample matrices,making it possible to conclude that—once these products become waste and are regulated under the Basel Convention—they would not constitute a disposal problem.Nevertheless,verification of the presence of PFAS in products on the market is expected to pose an analytical challenge for both,developed and developing countries. 展开更多
关键词 Emerging or newly listed POPs Stockholm Convention Products and articles PFAS analysis Developing countries
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Correction:Brillouin scattering spectrum for liquid detection and applications in oceanography
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作者 Yuanqing Wang Jinghao Zhang +6 位作者 Yongchao Zheng Yangrui Xu Jiaqi Xu Jiao Jiao Yun Su Hai-Feng Lü Kun Liang 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2024年第1期47-47,共1页
After publication of this article1,it was brought to our at-tention that the mathematical expressions‘‰’were mis-takenly replaced by‘%’for salinities.Details are listed below.1.In the last sentence in abstract,“... After publication of this article1,it was brought to our at-tention that the mathematical expressions‘‰’were mis-takenly replaced by‘%’for salinities.Details are listed below.1.In the last sentence in abstract,“approximately 0.1℃and 0.5%”should be“approximately 0.1℃and 0.5‰”. 展开更多
关键词 SCATTERING LISTED SPECTRUM
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Improved Segmented Belief Propagation List Decoding for Polar Codes with Bit-Flipping
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作者 Mao Yinyou Yang Dong +1 位作者 Liu Xingcheng Zou En 《China Communications》 SCIE CSCD 2024年第3期19-36,共18页
Belief propagation list(BPL) decoding for polar codes has attracted more attention due to its inherent parallel nature. However, a large gap still exists with CRC-aided SCL(CA-SCL) decoding.In this work, an improved s... Belief propagation list(BPL) decoding for polar codes has attracted more attention due to its inherent parallel nature. However, a large gap still exists with CRC-aided SCL(CA-SCL) decoding.In this work, an improved segmented belief propagation list decoding based on bit flipping(SBPL-BF) is proposed. On the one hand, the proposed algorithm makes use of the cooperative characteristic in BPL decoding such that the codeword is decoded in different BP decoders. Based on this characteristic, the unreliable bits for flipping could be split into multiple subblocks and could be flipped in different decoders simultaneously. On the other hand, a more flexible and effective processing strategy for the priori information of the unfrozen bits that do not need to be flipped is designed to improve the decoding convergence. In addition, this is the first proposal in BPL decoding which jointly optimizes the bit flipping of the information bits and the code bits. In particular, for bit flipping of the code bits, a H-matrix aided bit-flipping algorithm is designed to enhance the accuracy in identifying erroneous code bits. The simulation results show that the proposed algorithm significantly improves the errorcorrection performance of BPL decoding for medium and long codes. It is more than 0.25 d B better than the state-of-the-art BPL decoding at a block error rate(BLER) of 10^(-5), and outperforms CA-SCL decoding in the low signal-to-noise(SNR) region for(1024, 0.5)polar codes. 展开更多
关键词 belief propagation list(BPL)decoding bit-flipping polar codes segmented CRC
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Evolution and Governance of the Structure of Marine Economic Networks in China’s Coastal Areas: Based on Sea-related A-share Listed Companies
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作者 LI Bo CAO Gai 《Chinese Geographical Science》 SCIE CSCD 2024年第5期899-916,共18页
Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linka... Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linkages,the importance of marine economic net-work research is beginning to emerge.The construction of the marine economic network in China’s coastal areas is necessary to change the flow of land and sea resources and optimize regional marine economic development.Employing data from headquarters and branches of sea-related A-share listed enterprises to construct the marine economic network in China,we use social network analysis(SNA)to discuss the characteristics of its evolution as of 2010,2015,and 2020 and its governance.The following results were obtained.1)In terms of topological characteristics,the scale of the marine economic network in China’s coastal areas has accelerated and expan-ded,and the connections have become increasingly close;thus,this development has complex network characteristics.2)In terms of spatial structure,the intensity of the connection fluctuates and does not form stable development support;the group structure gradually becomes clear,but the overall pattern is fragmented;there are spatial differences in marine economic agglomeration radiation;the radi-ation effect of the eastern marine economic circle is obvious;and the polarization effect of northern and southern marine economic circles is significant.On this basis,we construct a framework for the governance of a marine economic network with the market,the government,and industry as the three governing bodies.By clarifying the driving factors and building objectives of marine economic network construction,this study aims to foster the high-quality development of China’s marine economy. 展开更多
关键词 marine economic network sea-related A-share listed companies social network analysis(SNA) network governance China’s coastal areas
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New IEC White Paper on benefits of digital twins for energy sector
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《China Standardization》 2024年第6期44-44,共1页
Deploying renewables for electricity generation is essential to meeting the world's climate action targets. By 2030, renewable power is expected to surpass 10 terawatts globally, nearly quadrupling the current cap... Deploying renewables for electricity generation is essential to meeting the world's climate action targets. By 2030, renewable power is expected to surpass 10 terawatts globally, nearly quadrupling the current capacity.This projection also brings the current limitations of the existing infrastructure into sharp focus. In coming decades, grid networks need to be more robust and flexible. Modernizing the current infrastructure and expanding the transmission systems are therefore on government priority lists to enable their clean energy transition efforts. 展开更多
关键词 ENERGY globally lists
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