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变频空调推而不广的原因和对策
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作者 屈学杲 雷思亮 《消费导刊》 2009年第15期193-193,共1页
本文分析变频空调实用技术推而不广的多种原因,提出了数种提高变频空调市场占有率的措施。
关键词 变频空调 推不广 原因 对策
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智能分类垃圾桶推而不广的原因及对策研究
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作者 慈婉廷 王欣 《新丝路(下旬)》 2021年第8期0239-0240,共2页
随着科技的飞速发展,我国建设成为智慧城市的目标也在逐步实现。城市卫生工作是智能化城市建设中极为重要的一环,但智能分类垃圾桶作为环保卫生工作的好帮手却在诸多地区推而不广。就此通过发放问卷的方式了解居民对智能分类垃圾桶的看... 随着科技的飞速发展,我国建设成为智慧城市的目标也在逐步实现。城市卫生工作是智能化城市建设中极为重要的一环,但智能分类垃圾桶作为环保卫生工作的好帮手却在诸多地区推而不广。就此通过发放问卷的方式了解居民对智能分类垃圾桶的看法,结合调查数据和现有文献,利用PEST分析法,从政策、经济、社会和技术四个方面进行分析,提出推而不广的原因及解决对策。 展开更多
关键词 智能分类垃圾桶 不广 原因分析 解决措施
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The Popularization of the Weighting of Chebysher's Inequality
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作者 YANG Hui YAO Hong 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2005年第4期367-371,共5页
This paper presents the popularization of the weighting of Chebyshev's inequality and discusses the relation between this popularization and some famous inequalities.
关键词 Chebysher's inequality EXTENSION
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Some Generalizations for Inequalities of Hua-Wang Type 被引量:1
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作者 王挽澜 罗钊 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2002年第4期575-582,共8页
Some chains of inequalities of Hua-Wang type are established. These interesting results are the generalizations of some known inequalities. One of the new methods establishing inequalities is based on Sandor's goo... Some chains of inequalities of Hua-Wang type are established. These interesting results are the generalizations of some known inequalities. One of the new methods establishing inequalities is based on Sandor's good idea; another is applying the characteristics of nonlinear positive functionals. 展开更多
关键词 INEQUALITY GENERALIZATION method.
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On a New Mapping Related to Hadamard's Inequalities
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作者 于永新 刘证 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2005年第3期399-406,共8页
In this paper, we introduce a new mapping in connection to a recent generalization of Hadamard's inequalities for convex functions which gives a continuous scale of refinements of the mentioned inequalities. Some app... In this paper, we introduce a new mapping in connection to a recent generalization of Hadamard's inequalities for convex functions which gives a continuous scale of refinements of the mentioned inequalities. Some applications are also mentioned. 展开更多
关键词 Hadamard's inequalities convex function GENERALIZATION mapping.
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A Direct Proof and Extensions of An Inequality
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作者 杨士俊 《Journal of Mathematical Research and Exposition》 CSCD 北大核心 2004年第4期649-652,共4页
In this note, we discuss a well-known inequality which attracts considerable interest recently. We first obtain a full version of the inequality, then we give a concise and elementary proof which reveals its very esse... In this note, we discuss a well-known inequality which attracts considerable interest recently. We first obtain a full version of the inequality, then we give a concise and elementary proof which reveals its very essential. This naturally leads us to some more general extensions of it. Meanwhile, we point out some mistakes in the existing literature concerning the inequality. 展开更多
关键词 INEQUALITY Hadamard inequality Chebyshev inequality extensions.
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