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Appraisement on Contributive Ratio of Scientific and Technical Progresses in Milk Productive Enterprises by Model C^2GS^2
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作者 SUN Futian SUN Liqun YANG Guanglin 《Journal of Northeast Agricultural University(English Edition)》 CAS 2008年第4期41-44,共4页
Scientific and technical progress has been the driving forces of enterprises development.Milk productive enterprises are developing faster and growing better.It is very important to measure the contributive ratio of s... Scientific and technical progress has been the driving forces of enterprises development.Milk productive enterprises are developing faster and growing better.It is very important to measure the contributive ratio of scientific and technical progress in milk productive enterprises.And the appraisement could help to develop milk productive enterprises.The model C^2GS^2 was established to appraise the contributive ratio of scientific and technical progress in milk productive enterprises in the research.And the appraisement on the contributive ratio of scientific and technical progress in milk productive enterprises was made by the model.In the results of appraisement,science and technology play a main role in milk productive enterprises.It is shown that our milk productive enterprises are developed by scientific and technical progress while not by input of productive factors. 展开更多
关键词 model C^2GS^2 milk productive enterprises APPRAISEMENT contributive ratio
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Evaluation of the Effectiveness of Financial Support to Agriculture Based on the DEA Method 被引量:8
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作者 SUO Ruixia WANG Fulin 《Journal of Northeast Agricultural University(English Edition)》 CAS 2009年第3期46-51,共6页
Financial support to agriculture is the main driving force to increase farmers' income. This paper applied the evaluation DEA (Data-embrasing Analysis) method to evaluate the effectiveness of financial support to a... Financial support to agriculture is the main driving force to increase farmers' income. This paper applied the evaluation DEA (Data-embrasing Analysis) method to evaluate the effectiveness of financial support to agriculture from 1990 to 2005. It is found that the trend of the financial support to agricultural effectiveness in China presented a downward trend in recent years. The results showed that the overall trend of the financial support to agriculture in China wasn't high, and some corresponding proposals were put forward to optimized. 展开更多
关键词 financial support to agriculture DEA agricultural income C^2R model
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中国不可再生能源消耗效率的关键影响因素研究 被引量:3
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作者 武春友 赵奥 王晓岭 《当代财经》 CSSCI 北大核心 2012年第1期25-32,共8页
随着中国工业化和城市化进程的加快,不可再生能源消耗在急剧增长,经济发展对能源供给与环境约束的压力已经濒临可持续发展平衡底线。无论从国家能源安全还是能源、经济、环境系统的和谐发展角度出发,提高不可再生能源消耗效率都是必然... 随着中国工业化和城市化进程的加快,不可再生能源消耗在急剧增长,经济发展对能源供给与环境约束的压力已经濒临可持续发展平衡底线。无论从国家能源安全还是能源、经济、环境系统的和谐发展角度出发,提高不可再生能源消耗效率都是必然选择。在此背景下,基于C2B-DEA、超效率DEA模型,测算出1 990-2009年间中国不可再生能源消耗效率值,选定产业结构、对外开放程度、城市化进程、技术进步以及不可再生能源消耗结构等五大影响因素与效率值进行影响因素回归模型的实证分析。研究结果表明:第三产业比重、对外贸易进出口总额比重、城市化率以及不可再生能源消耗构成中煤炭消耗比重与不可再生能源消耗效率呈负相关,科技研发经费投入比重与不可再生能源消耗效率呈显著正相关。现阶段内,技术改造及创新与煤炭消耗比重的降低是提高我国不可再生能源消耗效率的重要途径。 展开更多
关键词 不可再生能源 消耗效率 影响因素 C2b-dea模型 超效率DEA模型
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Research on the Optimal Parallel Algorithms of Broadcast-Class Problems
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作者 李晓峰 寿标 郑世荣 《Journal of Computer Science & Technology》 SCIE EI CSCD 1998年第5期455-463,共9页
Speedup is considered as the criterion of determining whether a parallel algorithm is optimal. But broadcast-class problems, existing only on parallel computer system, have no sequential algorithms at all. Speedup sta... Speedup is considered as the criterion of determining whether a parallel algorithm is optimal. But broadcast-class problems, existing only on parallel computer system, have no sequential algorithms at all. Speedup standard becomes invalid here. Through this research on broadcast algorithms under several typical parallel computation models,a model-independent evaluation standard min C2 is developed, which can be not only used to determine an optimal broadcasting algorithm, but also normalized to apply to any parallel algorithm. As a new idea, min C2 will lead to a new way in this field. 展开更多
关键词 Optimal parallel algorithm broadcast-class problem parallel computation model min C^2
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