The sudden collapse of buildings or part of them,due to extreme hazards such as blast or aircraft impact,highlighted how structures designed according to co
A probabilistic methodology for the safety assessment of short span railway bridges for high-speed traffic is presented.The purpose is to create a simple,ef
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20世纪90年代以来,全球经济体间的关联性日益增强,国际证券投资逐渐成为金融联系的重要媒介。相较于直接投资,证券投资流动性强、波动性大,容易导致金融风险在不同区域间快速传染,进而引发全球性金融危机。鉴于此,本文深入探究了20世纪90年代以来国际证券资金流动的相关性网络特征,以及促使国家和地区间证券资金流动产生相关性的驱动因素。研究结果表明:以美国、中国香港、西班牙、德国等为主的发达国家和地区和以韩国、南非、印度为主的体量较大的新兴市场与其他经济体有显著的证券资金流动相关性。这些经济体均为系统重要性国家和地
Some of the decisive criteria for the design of bridges for high-speed railways are determined by the behavior of the track.The track deterioration has to b
Highway transportation is one of the important parts of comprehensive transporting system,and also one of the basic and leading industries for economic deve
In recent years,the use of high-strength steel bars is vigorously promoted in China.HRBF500 bars are a type of fine-grained bars with a yield strength of at
本文使用2008—2018年中国26家上市银行数据,采用四阶段DEA分析方法,测度上市银行的高质量发展水平,并尝试从有效性、协同性、创新性、分享性、稳定性等方面系统地考察银行业高质量发展的影响因素。研究发现:第一,2008—2018年上市银行的高质量发展平均纯技术效率处于较高水平,中间业务收入有助于提高银行的创新性,推动其高质量发展。第二,不同类型的上市银行的高质量发展效率及其影响因素存在差异。上述结论的政策含义在于,上市银行未来应调整和优化资源配置结构、贯通经营管理领域、拥抱金融科技、履行社会责任,以及
This paper is studied and analyzed the dynamic interaction of coupled high-speed train and long spans combined road and railway cable-stayed bridge under wi