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浅析信用证进口押汇业务 被引量:3
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作者 张庆 《金融理论与实践》 北大核心 2003年第1期29-31,共3页
我国加入WTO后,随着客户对贸易融资需求的增加,必然会有越来越多的客户要求银行办理进口押汇业务。对银行而言,进口押汇业务是一把双刃剑。银行应采取以下措施以防止进口押汇业务风险:进口押汇业务应涉及经常项目下的对外进口付汇;银行... 我国加入WTO后,随着客户对贸易融资需求的增加,必然会有越来越多的客户要求银行办理进口押汇业务。对银行而言,进口押汇业务是一把双刃剑。银行应采取以下措施以防止进口押汇业务风险:进口押汇业务应涉及经常项目下的对外进口付汇;银行必须对申请押汇的客户进行审查,合理授信;严格业务操作程序,减少操作风险;尽量减少法律纠纷;制定货权及货物处理办法;注意防范汇率风险。 展开更多
关键词 进口押汇业务 信用证 贸易融资 开证行 进口商 信托收据
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Economic Evaluation for 5G Planning of a Distribution Network Considering Network Coupling and Important Node Identification
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作者 Xiaowei Wang Qiankun Kang +5 位作者 Liang Guo Fan Zhang Zhenfeng Liang Jie Gao Xue Wang Weibo Liu 《Protection and Control of Modern Power Systems》 SCIE EI 2024年第3期126-141,共16页
The rapid development of communication services in the power distribution network poses challenges for existing wireless communications,and the deployment of a fiber optic network is costly and difficult.The emerging ... The rapid development of communication services in the power distribution network poses challenges for existing wireless communications,and the deployment of a fiber optic network is costly and difficult.The emerging 5G technology has been piloted in power distribution networks,though the cost-effectiveness of its large-scale deployment remains unclear.This paper proposes an economic evaluation method for 5G planning in power distribution networks,considering the coupling relationship between power distribution and communication networks and the identification of important network nodes.First,the objective function to solve the planned number of 5G base stations is established.This is solved using the adaptive particle swarm algorithm and K-means algorithm.Second,the coupling relationship between the distribution and communication networks is discussed and quantified.The node importance of the coupling network is analyzed to identify the important nodes,and micro base stations or optical fibers are added to improve the reliability of the distribution network at the communication level.Finally,an economic evaluation index of 5G planning of the distribution network is established.The paper compares the economic solutions of 5G and 4G communications in city and town scenarios using the IEEE 123-node network as an example,and concludes that the economics of 5G are better than those of 4G. 展开更多
关键词 5G coupling relationship node im-portance economic evaluation adaptive particle swarm K-MEANS
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