中国女排与世界女排强队跳发球运用效果的比较研究   总被引：2，自引：0，他引：2  

李先国  翁飚 《福建体育科技》2001,20(2):34-36,43

本文从回顾排球发球技术的历史入手 ,论述了跳发球的技术特点 ,并根据中国女排在世界杯赛上跳发球的效果及同世界强队的差距 ,有针对性地提出相应的对策。  相似文献   

每一种视觉元素都是信息     

Perter Wong 《青年记者》2006,(4):13-14

绘制插图最重要的东西是什么?谁有图片使用的最后决定权?汉字难以设计吗?版面变化的底线是什么?  相似文献   

The Metamorphosis of Industrial Designers from Novices to Experts     

Ju‐Joan Wong  Po‐Yu Chen  Chun‐Di Chen 《The International Journal of Art & Design Education》2016,35(1):140-153

Professional training for designers is crucial in the field of design studies. The characteristics of novices versus those of expert designers have been identified in the literature; however, studies exploring the issue of professional training processes in the actual workplace are not well developed. Our study addresses the topic by using qualitative research methods along with flexible design. Collected data from the interviewees with different work experience were analysed by open, axial and selective coding. Herein, we argue that the processes by which a designer transforms from a novice into an expert in the industry are constructed through the interaction of several complicated factors. The re‐learning inherent in design professions is implemented through knowledge transfer gained from participation in design projects, particularly regarding tacit knowledge. Also, the novice's process of learning and training yields the characteristics and skills that companies and firms require of designers; this process involves a series of disciplinary sub‐processes, from destructive to reconstructive, implemented by employers. In these sub‐processes, the subjectivity of designers is neglected, leading to the suppression of imaginative expression and feelings of alienation among these workers.  相似文献   

‘Extended Schools’: an exploration of the feelings,beliefs and intentions of parents and teachers     

SHAUNA MC GILL 《Support for Learning》2011,26(1):4-12

This research is designed to provide information for participants, facilitators and policy makers in the area of Extended Schools. Its salient purpose is to investigate and examine the feelings, beliefs and attitudes of teachers and parents involved in the development of the Extended Schools project in Northern Ireland. The Extended Schools project was formally launched by the Northern Ireland Secretary of State on 7 March 2006, and aims to provide a wide range of services and activities in school with the intention of helping to meet the needs of children, their families and the wider community. The qualitative approach was deemed the most appropriate methodology for gathering data.  相似文献   

Relationship between foot strike pattern,running speed,and footwear condition in recreational distance runners     

Roy T. H. Cheung  Rodney Y. L. Wong  Tim K. W. Chung  R. T. Choi  Wendy W. Y. Leung  Diana H. Y. Shek 《Sports biomechanics / International Society of Biomechanics in Sports》2017,16(2):238-247

Compared to competitive runners, recreational runners appear to be more prone to injuries, which have been associated with foot strike patterns. Surprisingly, only few studies had examined the foot strike patterns outside laboratories. Therefore, this study compared the foot strike patterns in recreational runners at outdoor tracks with previously reported data. We also investigated the relationship between foot strike pattern, speed, and footwear in this cohort. Among 434 recreational runners analysed, 89.6% of them landed with rearfoot strike (RFS). Only 6.9 and 3.5% landed with midfoot and forefoot, respectively. A significant shift towards non-RFS was observed in our cohort, when compared with previously reported data. When speed increased by 1 m/s, the odds of having forefoot strike and midfoot strike relative to RFS increased by 2.3 times and 2.6 times, respectively. Runners were 9.2 times more likely to run with a forefoot strike in minimalists compared to regular running shoes, although 70% of runners in minimalists continued to use a RFS. These findings suggest that foot strike pattern may differ across running conditions and runners should consider these factors in order to mitigate potential injury.  相似文献   

Thermal mixing of two miscible fluids in a T-shaped microchannel     

Xu B  Wong TN  Nguyen NT  Che Z  Chai JC 《Biomicrofluidics》2010,4(4):44102

In this paper, thermal mixing characteristics of two miscible fluids in a T-shaped microchannel are investigated theoretically, experimentally, and numerically. Thermal mixing processes in a T-shaped microchannel are divided into two zones, consisting of a T-junction and a mixing channel. An analytical two-dimensional model was first built to describe the heat transfer processes in the mixing channel. In the experiments, de-ionized water was employed as the working fluid. Laser induced fluorescence method was used to measure the fluid temperature field in the microchannel. Different combinations of flow rate ratios were studied to investigate the thermal mixing characteristics in the microchannel. At the T-junction, thermal diffusion is found to be dominant in this area due to the striation in the temperature contours. In the mixing channel, heat transfer processes are found to be controlled by thermal diffusion and convection. Measured temperature profiles at the T-junction and mixing channel are compared with analytical model and numerical simulation, respectively.  相似文献   

Managing Discovery and Linking Services     

Leanna Jantzi  Jennifer Richard  Sandra Wong 《期刊图书馆员》2016,70(1-4):184-197

There is a growing trend toward a consolidation of services for electronic resources management, A–Z journal listings, full text link resolving, and discovery services under a single service provider. In many cases, the adoption of a discovery service from a provider that is not the same as the libraries’ existing link resolver service means managing multiple knowledgebases. In this session, three librarians gave an overview of their experiences and strategies for maintaining separate link resolving and discovery services in lieu of adopting a full suite of services from a single service provider. Each speaker presented a case study on the advantages and challenges of managing their chosen discovery service: EBSCO Discovery Service, Ex Libris’ Primo and ProQuest’s Summon, in conjunction with the CUFTS/GODOT open source knowledgebase and link resolver service.  相似文献   

Tracking Pre-service Teachers’ Changing Conceptions of Good Science Teaching: The Role of Progressive Reflection with the Same Video     

Benny Hin Wai Yung  Siu Ling Wong  Man Wai Cheng  Ching Sum Hui  Derek Hodson 《Research in Science Education》2007,37(3):239-259

A CD-ROM consisting of videos of two lessons by different teachers demonstrating exemplary science teaching was used to elicit, develop and track the changing conceptions of good science teaching of student teachers enrolled for the one-year Postgraduate Diploma in Education (PGDE) at several stages during the programme. It was found that the videos acted as an effective probe to elicit student teachers’ conceptions and had significant impact on those conceptions at different stages of the programme through the provision of teacher models demonstrating exemplary teaching. The experience has extended novice teachers’ awareness of alternative teaching methods and approaches not experienced in their own schooling, broadened their awareness of different classroom situations, provided proof of existence of good practices and prompted them to reflect on their current conceptions of good science teaching. Most importantly, the strategy of asking student teachers to watch the same videos on three separate occasions at different times of the course was recognized by them as a crucial element in facilitating their reflection on their changing conceptions of good science teaching. PGDE is the standard form of pre-service teacher education in Hong Kong. It provides qualified teacher status within Hong Kong. Student teachers enrolled for the PGDE have completed a relevant undergraduate degree.  相似文献   

Helping Prospective Principals Understand the Mathematics Curriculum: a Singapore experience     

Khoon Yoong Wong 《Asia-Pacific Journal of Teacher Education》1991,19(2):143-148

Principals should play an important role as curriculum leaders in their schools. To discharge this role effectively, the principals must understand the nature of curriculum not only of the disciplines in which they have been trained, but also of other key disciplines commonly included in the school programme. A way must be found to train the principals to acquire up‐to‐date knowledge of the practices and trends in various subject curricula, so that they can carry out informed discussions with the heads of subject departments to set goals and directions for these programmes. This article focuses on such a programme, called the Diploma in Educational Administration (DEA), which has been developed at the Institute of Education, Singapore to train prospective principals. In particular, the paper shows how local research has been integrated into the training programme to help participants understand the mathematics curriculum.  相似文献   

Nationalistic Education in a Post-colonial Age: the Impact of Study Trips to China and the Development of Hong Kong Students' National Identity     

Sammy King-fai Hui  Frankie Ka-ki Cheung  Yama Yuk-ngo Wong 《Asia Pacific Journal of Education》2004,24(2):205-224

With the return of its sovereignty to the People's Republic of China (PRC) on 1 July 1997, Hong Kong attained a new political status as a Special Administrative Region. Hong Kong students, under British rule, had long been receiving de-politicised education, and a sense of belonging to China was limited to the cognitive domain of Chinese history. The ideal of promoting national identity, underpinned in the current civic education curriculum, is proving to be a difficult task. While much literature has documented how curriculumbased educational practices fail to instil students with such an identity, little study has been undertaken to suggest effective alternatives and to examine how they work. This paper reports a study investigating the impact of study trips on developing students' national identity. Through observation and interviews, it takes an in-depth look into students' experience, into how they identify with a Chinese identity. Results indicate that though the study trips help to nurture the cognitive and affective dimensions of national identity, there are limits and possibilities involved. This paper concludes with reminders which teachers should have taken into account when thinking of using co-curricular activities to address the legitimate need of fostering nationalistic education.  相似文献