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我国沿海港口二阶段效率测度研究 被引量:2
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作者 李电生 聂福海 《物流科技》 2018年第8期100-103,共4页
文章采用Additive-DEA和Malmquist指数方法,对2010~2015年我国10个沿海港口的生产作业和收益转化两阶段效率及其动态变化进行了测度研究。结果表明:我国不同沿海港口之间效率水平存在明显差异;我国沿海港口生产作业和收益转化效率均呈... 文章采用Additive-DEA和Malmquist指数方法,对2010~2015年我国10个沿海港口的生产作业和收益转化两阶段效率及其动态变化进行了测度研究。结果表明:我国不同沿海港口之间效率水平存在明显差异;我国沿海港口生产作业和收益转化效率均呈现上升趋势,未来仍有很大提升空间。 展开更多
关键词 Additive-DEA模型 MALMQUIST指数 港口 生产作业效率 收益转化效率
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The Development and Application of 2BDQ-8 Rice Direct Sowing Machine 被引量:2
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作者 杨新春 Xin-chun 《Agricultural Science & Technology》 CAS 2010年第5期187-190,共4页
[Objective] The aim was to introduce the development and application of 2BDQ-8 rice direct sowing machine and provide a theoretical basis for rice mechanization production. [Method] 2BDQ-8 rice direct sowing machine w... [Objective] The aim was to introduce the development and application of 2BDQ-8 rice direct sowing machine and provide a theoretical basis for rice mechanization production. [Method] 2BDQ-8 rice direct sowing machine was used for the promotion test in field of several cities and counties in Jiangsu Province,and artificial rice planting and mechanization rice planting were compared to explore the production and economic situation. [Result] 2BDQ-8 rice direct sowing machine had advantages such as high efficiency and low cost,the rice direct sowing machine saved about 30% compared to the artificial rice planting and mechanization rice planting,and the overall efficiency was significant. [Conclusion] 2BDQ-8 rice sowing machine was a production technology that had low cost and high efficiency,which should be widely applied. 展开更多
关键词 2BDQ-8 rice direct sowing machine Bud seed Direct seeding
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