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商业银行逆周期缓冲资本释放时机研究 被引量:1
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作者 彭建刚 左峥 《金融监管研究》 2014年第6期1-12,共12页
把握逆周期缓冲资本释放的正确时机是逆周期监管有效实施的关键之一。本文在分析金融危机与信贷关系的基础上,将多重分形消除趋势波动分析方法运用于分析信贷趋势并确定缓冲资本释放的时机;同时,运用美国1952—2013年的信贷数据进行了... 把握逆周期缓冲资本释放的正确时机是逆周期监管有效实施的关键之一。本文在分析金融危机与信贷关系的基础上,将多重分形消除趋势波动分析方法运用于分析信贷趋势并确定缓冲资本释放的时机;同时,运用美国1952—2013年的信贷数据进行了实证分析。研究结果表明:信贷增长率的Hurst指数可以有效指示信贷由扩张转为紧缩的时点;将名义总信贷增长率和名义银行信贷增长率的Hurst指数相结合,根据所指示的信贷反转点释放逆周期缓冲资本,能及时减少危机对银行业造成的损失。 展开更多
关键词 宏观审慎监管 逆周期缓冲资本 释放时机
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塔六点蓟马对山楂叶螨的控制效果 被引量:5
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作者 张金勇 陈汉杰 涂洪涛 《果树学报》 CAS CSCD 北大核心 2014年第5期922-926,共5页
【目的】探索塔六点蓟马的田间高效释放技术。【方法】在罩笼苹果树上先后定量接入山楂叶螨和塔六点蓟马,定期调查2者的数量消长变化。【结果】在山楂叶螨越冬代出蛰期或第一代雌成螨高峰期接螨密度为2~14头·m-2时,14 d后接种式释... 【目的】探索塔六点蓟马的田间高效释放技术。【方法】在罩笼苹果树上先后定量接入山楂叶螨和塔六点蓟马,定期调查2者的数量消长变化。【结果】在山楂叶螨越冬代出蛰期或第一代雌成螨高峰期接螨密度为2~14头·m-2时,14 d后接种式释放塔六点蓟马雌成虫0.5头·m-2,可以将山楂叶螨高峰期的密度控制在经济危害允许水平之下,此时叶螨增长的抑制率高达90%。【结论】田间释放的适宜时机为:当调查树冠内膛主干附近平均10个叶丛枝有山楂叶螨雌成螨4~28头时,根据螨多早放的原则于7~14 d后按每m20.5头的量在树冠内膛释放塔六点蓟马。 展开更多
关键词 苹果树 塔六点蓟马 山楂叶螨 增长抑制率 释放时机
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Robowler:Design and development of a cricket bowling machine ensuring ball seam position
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作者 RAZA Ali DIEGEL Olaf ARIF Khalid Mahmood 《Journal of Central South University》 SCIE EI CAS 2014年第11期4142-4149,共8页
The art of cricket bowling is complex and arduous owing to the run-up and ball release time energy requirement to achieve speed and variations. Therefore, human bowlers cannot bowl for extended periods and numerous me... The art of cricket bowling is complex and arduous owing to the run-up and ball release time energy requirement to achieve speed and variations. Therefore, human bowlers cannot bowl for extended periods and numerous mechanical bowling machines have been built to help batsmen improve their skills during practice sessions. However, most of these existing machines are designed for spherical balls ignoring the distinguishing physical feature of a cricket ball: the raised equatorial seam, which makes it less of a sphere. The bowlers are known to often benefit from this seam in their pursuit to taking the batsmen's wicket by imparting swing, spin and bounce variations along-with other bowling variables. This lack of the seam consideration creates a void between human and mechanical bowling. In this work, we present design and development of an automatic bowling machine termed as ROBOWLER to make mechanical bowling more realistic. This machine ensures ball seam position as well as fulfills other constraints. Ball pitching and seam position accuracy results underscore the suitability of this design to enhance the capabilities of mechanical bowling. 展开更多
关键词 robowler bowling machine cricket bowling ball seam bowling variables
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