排序方式： 共有164条查询结果，搜索用时 15 毫秒
71.
陈楚涛 《中国科教创新导刊》2010,(20):1-2
随着我国对外交往的不断成熟与日益频繁,我国外语学习和教育的重要性日益显著。加入世界贸易组织后,我国又掀起了一股外语热,而在这股热潮的背后则是对传统文化的不断冷落与陌生。本文通过对外语专业学生的问卷调查（以英语专业学生为代表）,分析当前我国外语教育中的传统文化教育问题,并提出若干探索性建议。 相似文献
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我国远程教育经济学研究及其主要成果(下)--远程教育经济学研究的研究(五) 总被引：4，自引：0，他引：4
丁兴富 《现代远程教育研究》2002,(1):16-20
广播电视大学是我国远程教育经济学研究的主要对象及成果集中地，其中，投资效益的主要体现点在校生生均培养费，毕业生生均培养费及其与传统高等教育相应数据的比较、研究又是“重中之重” 相似文献
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写作是语言习得链条中的输出环节,这一环节的有效运行要依赖于其他输入环节（听,读）的充分配合。保证有效的语言输入是求高质量输出的前提。在大学英语教学中务求输入和输出的协调统一,才能保证教学的有效性。在视听、阅读等资源中进行有效的输入积累,在输出环节中进行操练和调整才能事半功倍。 相似文献
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本文在CES总量生产函数假定下,采用标准化供给面系统法估算了中国各省份在1978-2012年期间的资本—劳动替代弹性、要素效率增长率以及希克斯技术进步偏向指数和哈罗德技术进步偏向指数.结果表明:中国各省份要素替代弹性介于0.716～2.752之间,但大部分省份的要素替代弹性略小于1,资本与劳动总体呈互补;平均而言,各省区劳动效率增长速度普遍大于资本效率增长速度,技术进步偏向资本使用;从趋势看,技术进步的资本使用偏向并不明显,因此技术进步偏向解释中国劳动收入份额持续下降的能力有限. 相似文献
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Macro-level indicators of the relations between research funding and research output 总被引：3，自引：0，他引：3
In response to the call for a science of science policy, we discuss the contribution of indicators at the macro-level of nations from a scientometric perspective. In addition to global trends such as the rise of China, one can relate percentages of world share of publications to government expenditure in academic research. The marginal costs of improving one's share are increasing over time. Countries differ considerably in terms of the efficiency of turning (financial) input into bibliometrically measurable output. Both funding schemes and disciplinary portfolios differ among countries. A price per paper can nevertheless be estimated. The percentages of GDP spent on academic research in different nations are significantly correlated to historical contingencies such as the percentage of researchers in the population. The institutional dynamics make strategic objectives such as the Lisbon objective of the EU – that is, spending 3% of GDP for R&D in 2010 – unrealistic. 相似文献
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刘戈 《安顺师范高等专科学校学报》2009,11(1):70-72
文章从英语技能课程改革提出的“输出驱动假设”研究入手,探讨了“输出驱动假设”的意蕴;分析了“输出假设”的含义;指出了“输出驱动假设”与“输出假设”的异同;浅谈了更新理念,凸显输出,增强英语教学创新力;坚持课改,搞好互动,增强课堂教学驱动力;学用结合,以用促学,增强求职就业竞争力和认清形势,审时度势,增强英语学习影响力的教学启示。 相似文献
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Yafeng Li Liuliu Zhang Changchun Hua Yu Zhang Xinping Guan 《Journal of The Franklin Institute》2018,355(3):1073-1087
This paper investigates the output feedback control for a class of stochastic nonlinear time delay systems based on dynamic gain technique. The nonlinear terms of the stochastic system satisfy linear growth condition on unmeasured state variables with the output dependent incremental rate, which makes the studied time delay stochastic system more general than the exiting results. Firstly, the full order dynamic gain observer is constructed. Then, the linear-like controller is designed without using recursive design method. Next, the stability analysis is given and a useful corollary is obtained. Finally, a simulation is given to illustrate the effectiveness of the proposed method. 相似文献
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This paper deals with chained form systems with strongly nonlinear disturbances and drift terms. The objective is to design robust nonlinear output feedback laws such that the closed-loop systems are globally exponentially stable. The systematic strategy combines the input-state-scaling technique with the so-called backstepping procedure. A dynamic output feedback controller for general case of uncertain chained system is developed with a filter of observer gain. Furthermore, two special cases are considered which do not use the observer gain filter. In particular, a switching control strategy is employed to get around the smooth stabilization issue (difficulty) associated with nonholonomic systems when the initial state of system is known. 相似文献