选词批评与词法示范——论许昂霄的《晴雪雅词》、《词综偶评》

清代词选多为专业词家编纂,手眼甚高,在选本的功用上,往往侧重于推尊词体、开宗立派,而于示人词法方面则略有忽视.许昂霄坐馆于涉园张氏,因指导张氏子弟填词之需,编选《晴雪雅词》,评点《词综》,偏重于词法的讨论与示范.另外,《词综偶评》、《晴雪雅词》的选词理念和批评主张,对浙派思想既有继承,又有所批判,提出尚自然,贵性情等创作思想,来纠正浙西词派的偏至,一定意义上弥补了浙派的若干不足.     

论《桥》的幻想叙事方式

《桥》是一曲悠扬的田园牧歌,是一幅静谧的山水画,是对应然的理想世界的憧憬,这里远离战乱纷扰、景色优美宜人、人性淳朴善良。《桥》之美在于其虚幻性,它留给我们的不是对现实的思考,而是精神的寄托。废名通过三重梦境的建构完成了其幻想叙事,由身处现实、渴望桃源,到走进桃源、抗拒现实,再到融入桃源、超越现实,逐步摆脱了现实的束缚,完成桃源仙境的重建。     

如何制定小学语文单元知识网络图

制定单元知识网络图,旨在明确每个单元、每篇课例“教什么”“学什么”的内容,尝试“怎么教”“怎么学”的有效方法,以其提高教学质量。     

图书丢失率调查方案的设计与实践

文章介绍江南大学图书馆以图书半衰期作为新旧书划分线而设计的一种调查图书丢失率的方案,并用加权数学公式对数据进行分析处理,指出新书丢失率的确认和控制将是图书馆馆藏管理的重点,并对方案的初步实践进行反思和总结,给出合理的图书丢失率的数值范围.     

“燃烧热测定”教学实验的改进

本文介绍了在燃烧热的测定实验中采用双孔带槽模底,单、双股燃烧丝相结合的挂样片法,代替单孔或无孔模底,单股燃烧丝接触样片法,以及压片操作技法。四年的实践表明,这种实验方法大大提高了实验的成功率,缩短了实验操作时间。     

CAN总线位速率参数在实际应用中设置的研究分析

CAN总线是一种有效支持分布式控制和实时控制的、多主的异步串行通信网络。CAN通信中的波特率、位周期内取样点数和位置的设置极大地影响了CAN性能的发挥。优化位定时参数,能够保证信息同步,并且对它设置的恰当与否关系着整个系统通信的成败。本文就是针对这点来说明位定时参数的确定方法及其重要性。     

Sample, Random and Variation: The Vocabulary of Statistical Literacy

This paper considers the development of school students’ ability to define three terms that are fundamental to statistical literacy: sample, random, and variation. A total of 738 students in grades 3, 5, 7, and 9 were asked in a survey to define and give an example for the word “sample.” Of these, 379 students in grades 7 and 9 were also asked about the words “random” and “variation.” Responses were used to describe developmental levels overall and to document differences across grades on the understanding of these terms. Changes in performance were also monitored after lessons on chance and data, emphasizing variation for 335 students. After 2 years, 132 of these students and a further 209 students who were surveyed originally but did not take part in specialized lessons, were surveyed again. The difference after 2 years between the performance of students who experienced the specialized lessons and those who did not was considered, revealing no differences in performance longitudinally. For students in grades 7 and 9, the association of performance on the three terms was explored. Implications for mathematics and literacy educators are discussed.     

Teaching NHCE with Cross-Cultural Simulations

Cross-cultural communication competence is very important for the students who study English as a second language. In order to teach effectively.the teachers may try to teach with cross-cultural simulations.The au- thor Of the article uses 5 simulations in the course of New Horizon College English.Although the sample size in this research is small,the author shows the ideas that cross-cultural awareness is related to communication competence and teaching with cross-cultural simulations helps understanding.     

Degrees of Freedom

This article reviews several attempts to define degrees of freedom, and offers some simple explanations of how they are derived and why they are used in various contexts.     

X-射线衍射仪中样品架对物相分析的影响

由于X-射线衍射分析仪具有操作简单、无损样品、信息全面等优点,是目前进行物相分析的重要方法之一。但在实际操作过程中,样品架自身的衍射信号会影响样品结构的解析,因此X-射线衍射仪中样品架的选择是快速准确得到样品晶体结构及物相分析的关键。该文基于岛津XRD-6100衍射仪,通过对比铝样品架、树脂样品架、无反射样品架、载玻片及自制凹槽样品架,研究样品架对样品衍射信号的影响。结果表明:不同样品架因其性质不同有各自明确的背景峰。若样品量充足,晶型好的样品对于样品架的选择并无特殊的要求,为了得到更高的峰强度,建议使用常规的铝制或树脂样品架;若样品量少且多为非晶态馒头峰的样品,需考虑样品架对其X-射线衍射峰的影响,建议使用无反射样品板,或者以35°为界,特征峰在35°之前建议使用铝制样品架,35°之后建议使用树脂样品架;载玻片和凹槽样品架主要用于特殊形状规格样品的测试。