沉淀滴定的终点误差公式及准确滴定的可能性条件     

莫运春 《衡阳师范学院学报》1993,(6)

本文导出了沉淀滴定的终点误差公式。该公式把终点误差(TE)与溶度积或条件溶度积(K_(sp)或K_(sp)、终点偏离计量点的远近(ΔPB)、被滴物浓度(C_B)以及反应系数五者之间的内在关系紧密地结合在一起。在该公式的基础上,定量地得到了单一离子和混合离子的准确滴定的可能性条件。  相似文献   

Serious leisure: the sport of target shooting and leisure satisfaction     

Douglas W. Murray  David Martin  Martin O’Neill  T. Jason Gouge 《Sport in Society》2016,19(7):891-905

This study is designed to identify the underlying satisfaction dimensions gained through engagement in target shooting as a serious leisure pastime. The instrument design was based on the Leisure Satisfaction Scale. A total of 5502 useable surveys were collected through the Internet and a website related to target shooting and gun ownership. The results revealed eight dimensions: self-actualization, social interaction, location aesthetic, respite, physical benefit, connection and hedonic pleasure, which supplied the primary satisfiers of engaging in target shooting as a serious leisure activity. The demographic profile and dimensions of satisfaction may serve to dispel commonly held stereotypes of shooting hobbyists and those involved in gun ownership. The findings have important implications for leisure researchers and practitioners, to industry, both leisure and firearm related, and the target shooting community at large. This study adds to the literature of both target shooting and serious leisure.  相似文献   

高校武术与武舞的协同发展     

袁丽  莫兰 《搏击·武术科学》2016,(4):8-10

一直以来,武术的发展情况在高校的体育教学中都备受关注。然而,如何真正促进高校武术的发展,却一直都是研究的瓶颈,文章通过查阅资料,并进行实地采访和调查,分析得出要想真正促进高校武术的发展进步,必须将武术与武舞协同发展。二者相互促进,以武舞的表演性激发武术的活力,以武术的坚韧性来糅合武舞的单一性。同时,通过调查研究,针对促进高校武术与武舞的协同发展提出了一系列建议与方法,借以为高校武术的发展和中国武术传统文化的传承提供借鉴。  相似文献   

Study on effect of segments erection tolerance and wedge-shaped segment on segment ring in shield tunnel     

CHEN Jun-sheng MO Hai-hong 《浙江大学学报(A卷英文版)》2006,7(11):1864-1869

INTRODUCTION Shield tunnel method has become the most pre- ferred method in city tunnel construction because of its excellent attributes: little effect on surrounding environment, fast and safe construction, outstanding performance in earthquake resistance, etc. (Zhang et al., 2004). In different shield tunnels, the arrangement and number of segments are different, but the whole assembling process is generally the same. The as- sembling process begins with A2P, then A1P, A3P, BP, CP, …  相似文献   

Exploring the everyday realities of grass-roots football coaching: towards a relational perspective     

Paul Potrac  Lee Nelson  Jimmy O’Gorman 《Soccer & Society》2016,17(6):910-925

While scholars have increasingly engaged with the (micro)political and emotional experiences of coaches in professional and semi-professional football, little attention has been given to grass-roots coaches’ understandings of these issues. The aim of this paper is to outline one possible research agenda that could contribute to the development of a rich and increasingly nuanced understanding of the everyday realities of being a grass-roots football coach. In particular, we consider (volunteer) coaches’ participation in grass-roots football to be an inherently relational endeavour. Following the presentation of a creative fiction that is based upon our shared experiences of being grass-roots football coaches, we then illustrate how relational thinking might be productively applied to exploring the social, (micro)political and emotional features of grass-roots football coaching.  相似文献   

基于Filter-Hook Drive设计个人防火墙     

莫向阳 《广东技术师范学院学报》2007,(10):18-20

结合Filter-Hook Driver的工作原理和特点,在Windows2000/XP下使用Filter-Hook Driver创建过滤函数,并利用设定好的过滤规则对访问的数据包进行过滤,实现防火墙的功能,给出程序实例.  相似文献   

成人高等教育人才培养模式的创新   总被引：1，自引：0，他引：1  

莫善球 《继续教育研究》2007,(4):87-88

我国成人高等教育主要培养现代化德、智、体、美、劳全面发展的基层和生产第一线的各种应用技术型人才和管理人才;本文根据成人高等教育的特点,阐述成人高等教育人才培养模式的内涵,包括培养目标、培养过程、培养制度、培养质量等四个方面;从教学模式的创新、质量管理模式的创新、课程建设的创新以及实践教学的创新等实现成人高等教育人才培养模式的创新.  相似文献   

Home: A Feeling Rooted in the Heart     

Weimin Mo  Wenju Shen 《Children‘s Literature in Education》2007,38(3):173-185

Culturally diverse as they are, Asian-American children and youth share quite a few features among themselves. Most of them are children of foreign-born parents who came to America during the post-1965 immigration waves. As they grow up in culturally isolated environment, they are often faced with identity crisis. The society’s racial exclusion makes them feel like “forever foreigners,” while at home or community their American frame of reference is often in conflict with parents’ traditional values. As a result, they develop a flexible concept of identification. In fact, they are a part of but also apart from the American mainstream culture.  相似文献   

What Subject Matter Knowledge do second-level teachers need to know to teach trigonometry? An exploration and case study     

Richard Walsh  Olivia Fitzmaurice  John O’Donoghue 《Irish Educational Studies》2017,36(3):273-306

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STEP UP to networks for science teacher professional development     

Carl Stannard  Thomas O’Brien  Andrew J. Telesca 《Journal of Science Teacher Education》1994,5(1):30-35

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