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综合运输系统运输量分配模型研究 被引量:1
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作者 金俊武 孙家庆 隽志才 《吉林工业大学学报》 CSCD 1990年第4期93-98,共6页
本文在分析运输结构优化依据的基础上,根据多产品替代方法原理,结合各种运输方式的特点,建立了综合运输系统运输量分配模型。通过对吉林省1971~1987年数据进行试算,证明该模型具有较高的精度和预测能力。用它预测吉林省未来年份各种运... 本文在分析运输结构优化依据的基础上,根据多产品替代方法原理,结合各种运输方式的特点,建立了综合运输系统运输量分配模型。通过对吉林省1971~1987年数据进行试算,证明该模型具有较高的精度和预测能力。用它预测吉林省未来年份各种运输方式运输量得到满意的结果。 展开更多
关键词 综合运输 结构比例 运输量分配
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Embodied Energy and CO2 Associated with Buildings by Using Input and Output Table in Japan
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作者 Noriyoshi Yokoo Tatsuo Oka +2 位作者 Keizo Yokoyama Takao Sawachi Makoto Yamamoto 《Journal of Civil Engineering and Architecture》 2015年第2期153-164,共12页
In July 2009, the 2005 basic Japanese input/output table was publicized together with its physical transaction table. This research paper analyzed the 2005 IO (input/output) table to create building industry-related... In July 2009, the 2005 basic Japanese input/output table was publicized together with its physical transaction table. This research paper analyzed the 2005 IO (input/output) table to create building industry-related intensities and, at the same time, compared the building industry with industries at large for distribution margins and transportation. The analysis of distribution margins separately for middle and purchaser margins found that middle margins in the building industry are minor at 35% of the averages for all industries, while purchaser margins are sizable at 1.8 times, proving that it is an industry for which local production for local consumption is quite effective. CO2 emissions resulting from transportation in the building industry were calculated and concisely characterized. Although the ratio of transportation CO2 emissions to total CO2 emissions in each industry finds almost no difference between general industries and the building industry, transportation CO2 emissions per production value are two to three times heavier than those from general industries to be justified as a transportation-intensive industry. 展开更多
关键词 Embodied energy embodied CO2 input and output table.
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