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电信技术“突现”与区域发展
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作者 郑文 郑时 《中国经济与管理科学》 2008年第1期47-49,共3页
以复杂系统观认识电信技术标准化的路径特征,分析电信技术标准化的“突现”机理。在企业的适应性作用下,传统经济垄断的电信技术市场化倾向增强,在标准化确定上,表现出复杂系统的“突现”性,具体为:技术机会与技术路径的非线性、... 以复杂系统观认识电信技术标准化的路径特征,分析电信技术标准化的“突现”机理。在企业的适应性作用下,传统经济垄断的电信技术市场化倾向增强,在标准化确定上,表现出复杂系统的“突现”性,具体为:技术机会与技术路径的非线性、非遍历性,区域发展的带动功能。 展开更多
关键词 技术管制 电信技术 技术突现 区域发展
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Outburst control technology for rapid excavation in severe outburst coal
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作者 QU Yang 《Journal of Coal Science & Engineering(China)》 2010年第1期53-56,共4页
The advantages and disadvantages of various outburst prevention measures inheading face were analyzed.The mechanism of outburst prevention about hydraulic extrusionmeasure was studied, the technological parameters wer... The advantages and disadvantages of various outburst prevention measures inheading face were analyzed.The mechanism of outburst prevention about hydraulic extrusionmeasure was studied, the technological parameters were introduced, and the effectof outburst prevention was investigated.The in-situ experimental results show that thehydraulic extrusion measures are applied in serious outburst mine, not only the stress ofstimulate outburst is eliminated effectively but also the gas in coal seam is released efficiently,the measures get obvious effect on coal and gas outburst prevention, and theroadway driving speed is increased by 1.5 times, implementing a safe and rapid excavation. 展开更多
关键词 mechanism of outburst prevention outburst prevention measure rapid excavation hydraulic extrusion water iniection
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