劝农节里话汤公

2010年春。浙西南遂昌县石练镇淤头村。合抱粗的古樟,虬枝盘曲,叶色吐翠。古樟下人头攒动,鼓乐喧天。＂虎年吉祥,风调雨顺,钱瓯源长,春暖花开,农民朋友们,开春犁田喽!＂随着这一声浑厚男中音的喊声,2010中国遂昌汤显祖文化·劝农节的重头戏——＂班春·劝农＂大典进入高潮。这一明代乡村农耕盛典的再现,引来了像我一样的众多外地宾朋不远千里来到遂昌,来探究劝农节的渊源。     

Experienced physical education teachers reaching their "use-by date": powerless and disrespected

With the needs of experienced teachers potentially overshadowed by a focus on recruitment, the purpose of this study was to retrospectively explore the reasons why three experienced physical education teachers resigned. They were interviewed through Louis and Smith's (1990) quality of work life (QWL) model. Data suggested shared dissatisfactions related to the lack of "genuine" opportunities to participate in educational debate and decision making, and limited professional respect shown by administrators and parents. A physical education teacher's "use-by date" was proposed. Unless these issues are further explored and addressed, quality teachers will continue to abandon the service.     

大学庸俗化批判

本文在高度概括种种大学庸俗化现象的基础上 ,分析了庸俗化偏离大学的属性、破坏教育公平的原则、损害大学的道德楷模形象、扭曲学术标准的危害性 ,从政治、经济及大学自身三个方面讨论了大学庸俗化的致因 ,并提出了防范和治理庸俗化的有效途径     

Maximum power point tracking of a photovoltaic energy system using neural fuzzy techniques

In order to improve the output efficiency of a photovoltaic (PV) energy system, the real-time maximum power point (MPP) of the PV array should be tracked closely. The non-linear and time-variant characteristics of the photovoltaic array and the non-linear and non-minimum phase characteristics of a boost converter make it difficult to track the MPP as in traditional control strategies. A neural fuzzy controller (NFC) in conjunction with the reasoning capability of fuzzy logical systems and the learning capability of neural networks is proposed to track the MPP in this paper. A gradient estimator based on a radial basis function neural network is developed to provide the reference information to the NFC. With a derived learning algorithm, the parameters of the NFC are updated adaptively. Experimental results show that, compared with the fuzzy logic control algorithm, the proposed control algorithm provides much better tracking performance.     

Passive optical separation and enrichment of cells by size difference

A size-selective cell sorting microfluidic device that utilizes optical force is developed. The device consists of a three-dimensional polydimethylsiloxane microstructure comprised of two crossed microchannels in a three-dimensional configuration. A line shaped focused laser beam is used for automatic size-selective cell sorting in a continuous flow environment. As yeast cells in an aqueous medium are fed continuously into a lower channel, the line shaped focused laser beam is applied (perpendicular to the direction of flow) at the junction of the two crossed channels. The scattering force of the laser beam was employed to push cells matching specific criteria upward from one channel to another. The force depends on the size of the cells, the laser power, and the fluid flow speed. The variation in size of yeast cells causes them to follow different routes at the intersection. For flow speeds below 30 μm∕s, all yeast cells larger than 3 μm were removed from the main stream. As a result, a high purity sample of small cells can be collected at the outlet of bottom channel.     

高技木产业研发创新效率与全要素生产率增长

以2000-2008年中国大陆28个省份的面板数据为基础,应用超越对数随机前沿模型,实证测评了各地区高技术产业研发创新的相对效率与全要素生产率增长情况.研究显示,各地区高技术产业研发创新技术效率存在差异,且东部地区高于中、西部;研发创新的全要素生产率与技术进步均有所增长,多数地区高技术产业技术进步率高于全要素生产率增长率;技术进步是全要素生产率增长的主要动力,而技术效率在考察期内并未发生明显变化.     

基于Z39.50的元搜索引擎优化策略

元搜索引擎具有扩大查询信息覆盖面、提高查全率,保证检索结果权威性、可靠性,以及操作简便的优点。基于Z39.50的元搜索引擎可实现检索、优化策略,具有屏蔽具体转换过程、形成统一操作模式,提高检索效率、质量及系统安全性等优点。图2。参考文献4。     

图书馆与高校素质教育

论述了图书馆对促进高校素质教育的重要作用及图书馆如何主动适应素质教育的具体做法。     

浙江省海防林的概况及发展前景

浙江省海防林建设经过几十年的努力,目前已被见成效,但是还比较零散,海防林树种组成简单,在北段多以刺槐,榆树为主,南段则有木麻黄,桉树等少数几种。树种单一,为多纯林。布局不够全面和合理,而且结构形式也不够完善,因此,须对现有海防林进行改造。首先要改变它的结构形式。     

中小学生口语交际训练刍议

我国长期传统的语文教学和评价标准,普遍存在重读写、轻听说的现象,大多数学生在总体的“听说．读写”诸能力中：“说”的能力普遍偏差,但也最不为重视,而“说”的能力低下所产生的负面影响,必然致使其“读、写”能力因失去基础依托而发展缓慢。