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控制理论与过程控制技术的发展和态势 总被引:2,自引:0,他引:2
综述了控制理论和过程控制技术的发展和态势,并对现代控制理论和技术所研究的几个主要控制系统进行了简要的评述,还总结了几种控制系统的基本概念、理论基础、系统类型、主要特点、适用场合以及该系统进一步发展的可能方向。 相似文献
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Previous work shows that establishments with higher proportions of women are more likely to use piece rates but that individual women are less likely to receive performance pay. We present a model in which lower expected tenure and labor force attachment are positively associated with piece rates but are negatively associated with other forms of performance pay. Analysis of the National Longitudinal Survey of Youth (NLSY) confirms that women are more likely to be paid piece rates and simultaneously less likely to be paid commissions and bonuses. 相似文献
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中哈跨国石油管道的计量交接与管理 总被引:1,自引:0,他引:1
从技术层面和管理层面叙述了我国第一条跨国石油管道的计量计算方法和交接模式。原油报关计量数据采用中哈双方公认的第三国(美国)的API标准进行计量计算,根据实际情况,以中国和哈萨克斯坦的相关标准作为补充,完成了我国第一条跨国石油管道的计量交接与管理。 相似文献
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将环境污染分析的全过程中沾污的来源归纳为实验室空气、实验用容器、实验设备、实验试剂、实验用溶剂以及工作人员等 6个方面 ;将损失的来源归纳为容器吸附和挥发损失两方面 ,同时给出了减轻沾污与损失的对策 相似文献
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This is the first econometric study that explores which franchisors in Japan require royalties, what determines the royalty
rates of those that require sales-based royalties, and what determines their franchise-fee amounts. Our findings are broadly
consistent with the standard principal-agent view of franchise contracts, in which royalties heighten franchisor performance
incentives. From an analysis of a broad sample of 278 franchisors in Japan, in 2001, we find that franchise contracts are
more likely to include royalties if franchisor performance incentives are more valuable. The same conditions are associated
with higher sales-based royalty rates and higher franchise-fee amounts. 相似文献
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以氯化苄和吡啶为原料,合成物经与其它物料复配而生产出吡啶类缓蚀剂;以苯胺和环己酮为原料,反应物经与其它物料复配而生产出苯胺类缓蚀剂。经复配后的性能评价表明:吡啶与氯化苄的反应物和甲醇1:5稀释,复配2%甲醛、3%的丙炔醇,腐蚀速度可以降到2g/m2·h以下,苯胺与环己酮的反应物和甲醇1:6稀释,复配2%左右的丙炔醇、2%左右的碘化钾,腐蚀速度可以降到7g/m2·h以下。在室内试验的基础上,通过对两类缓蚀剂进行了工业化的生产与应用,取得了良好的效果。 相似文献