浅谈电子技术实验教学改革   总被引：1，自引：0，他引：1  

吴文全  胡金华 《实验室研究与探索》2006,25(6):681-683

针对提高学员的3种能力进行电子技术实验的教学改革,根据实验教改的设计思路,介绍了实验教改的实施方案及实施过程,可以充分发挥学员的潜能,培养学员的创新能力。  相似文献   

Generational differences in the ranking pathways of top 100 ranked golfers     

Aaron Koenigsberg  Jarred Pilgrim  Joseph Baker 《Journal of sports sciences》2020,38(18):2047-2053

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经济全球化与我国体育科技产业海外发展研究   总被引：1，自引：1，他引：0  

李少兰 《广州体育学院学报》2017,37(1):51-53

国际政治与经济发展的种种变革促成了今天经济的全球化发展态势,在高度发达的互联网技术以及文化多元化的国际文化价值观的双重影响下,经济全球化已从一种“趋势”发展成为了今天的显示,这种新态势迫使各国都在开发市场的同时,努力输出自己的产业,提升自身在全球化中的影响力.我国体育科技发展水平在举国体制的支撑下迅速发展,如同我国竞技体育水平一样,在很多方面处于国际领先地位.以人才和软科学输出为先导,带动实体产品的输出,同时,加强国内和国际市场的统一开发与把握,是我国体育科技产业海外发展的可行之路.  相似文献   

Writer identification approach based on bag of words with OBI features     

Amal Durou  Ibrahim Aref  Somaya Al-Maadeed  Ahmed Bouridane  Elhadj Benkhelifa 《Information processing & management》2019,56(2):354-366

Handwriter identification aims to simplify the task of forensic experts by providing them with semi-automated tools in order to enable them to narrow down the search to determine the final identification of an unknown handwritten sample. An identification algorithm aims to produce a list of predicted writers of the unknown handwritten sample ranked in terms of confidence measure metrics for use by the forensic expert will make the final decision.Most existing handwriter identification systems use either statistical or model-based approaches. To further improve the performances this paper proposes to deploy a combination of both approaches using Oriented Basic Image features and the concept of graphemes codebook. To reduce the resulting high dimensionality of the feature vector a Kernel Principal Component Analysis has been used. To gauge the effectiveness of the proposed method a performance analysis, using IAM dataset for English handwriting and ICFHR 2012 dataset for Arabic handwriting, has been carried out. The results obtained achieved an accuracy of 96% thus demonstrating its superiority when compared against similar techniques.  相似文献   

English in Education: the first fifty years     

John Hodgson  Sarah Wilkin 《English in Education》2014,48(3):196-229

On the fiftieth anniversary of the first publication of English in Education, this article reviews the journal's contribution to research and practice in the teaching of English. A thematic analysis based on close study of a sample of volumes is arranged chronologically (to show the development of ideas and practices) and thematically in terms of language mode (speaking; writing; reading, including new technologies). The article argues that the journal archive can shed light on the educational past in ways that can effectively inform the educational present and help to set agenda for the future.  相似文献   

Cultural Identification and Religious Identification Contribute Differentially to the Adaptation of Australian Adolescent Muslims     

《Int J Intercult Relat》2016

Australian Muslims are generally perceived as a devalued group in Australia and the public attitudes towards them are generally negative. This context raises questions about belonging and adaptation among Australian adolescent Muslims. The current study investigated how adolescent Muslims relate to their heritage culture, religion, and Australian culture, and which of these three factors is most important to adolescent Muslims’ psychological and socio-cultural adaptation. The study employed a mixed-method design. A total of 321 high school Muslim students (149 males and 172 females) aged between 14 and 18 years completed self-report questionnaires, and a subset sample of 18 students in the same age range, evenly split between males and females, participated in semi-structured interviews. The study revealed a hierarchical pattern of identification among Australian adolescent Muslims, with attachment to their religion being the most important, followed by heritage culture identification and being Australian in third place. Australian adolescent Muslims’ religious identification was perceived overall as more crucial to their socio-cultural and psychological adaptation, than their heritage culture identification or Australian identification. There was an overall modest contribution of Australian identification to adolescent Muslims’ adaptation. This might be connected with the relatively less attachment they show to their Australian identity due maybe to perception of being the target of prejudice, an issue that can be addressed by implementation of prejudice reduction strategies.  相似文献   

Exploring an intervention’s impact on everyday school activities     

Marianne Björn  Idor Svensson 《Support for Learning》2021,36(1):5-19

The focus of this paper is on a group of pupils with reading and writing difficulties who have been participating in an intervention study using assistive technology. That intervention study contained supervised training sessions with reading and writing tasks using an iPad with special supportive applications. The current study is a qualitative investigation of whether there has been any transfer from the intervention, to the pupils’ everyday school activities. Interviews with pupils and their teachers and observations during classroom lectures have been used to collect data. The results show that the pupils were positive to the assistive technology (the applications on the iPads), they found the apps easy to learn how to use and they appreciated the benefits they could give. Even so, only a few of the pupils had found use for and continued to use the tools after the intervention period finished. Possible reasons are that when the novelty wore off, students reverted to their usual study habits and that older students with many teachers and different classrooms were less able to adapt to using the apps. To improve transfer, it is suggested to introduce assistive technology earlier to students, in the younger grades, before study habits have been formed and to inform teachers about the use of AT in the classroom, including what is available and how it can benefit students.  相似文献   

Key somatic variables associated with,and differences between the 4 swimming strokes     

Alan M. Nevill  Yassine Negra  Tony D. Myers  Senda Sammoud  Helmi Chaabene 《Journal of sports sciences》2020,38(7):787-794

ABSTRACT

This study identified key somatic and demographic characteristics that benefit all swimmers and, at the same time, identified further characteristics that benefit only specific swimming strokes. Three hundred sixty-three competitive-level swimmers (male [n = 202]; female [n = 161]) participated in the study. We adopted a multiplicative, allometric regression model to identify the key characteristics associated with 100 m swimming speeds (controlling for age). The model was refined using backward elimination. Characteristics that benefited some but not all strokes were identified by introducing stroke-by-predictor variable interactions. The regression analysis revealed 7 “common” characteristics that benefited all swimmers suggesting that all swimmers benefit from having less body fat, broad shoulders and hips, a greater arm span (but shorter lower arms) and greater forearm girths with smaller relaxed arm girths. The 4 stroke-specific characteristics reveal that backstroke swimmers benefit from longer backs, a finding that can be likened to boats with longer hulls also travel faster through the water. Other stroke-by-predictor variable interactions (taken together) identified that butterfly swimmers are characterized by greater muscularity in the lower legs. These results highlight the importance of considering somatic and demographic characteristics of young swimmers for talent identification purposes (i.e., to ensure that swimmers realize their most appropriate strokes).  相似文献   

利用AIS数据计算港口间竞争度的方法     

向哲  施朝健  胡勤友  杨春 《上海海事大学学报》2016,37(1):60-64

为能更有效地提供有价值的航运情报, 借鉴网络分析法相关原理，挖掘船舶AIS数据，获取港口之间的竞争度.该法通过船舶数据模型、港口数据模型、船舶抵达港口事件模型、船舶挂靠港记录、港口之间运力、港口网络等建立港口间竞争度模型. 选取2014年4—8月中国沿海船舶AIS数据和17个主要港口数据，利用模型计算出对上海港竞争度排名前三的港口依次是宁波港、张家港港和南通港.  相似文献   

基于消费者低碳偏好的供应链碳减排策略     

熊榕  梁承姬  韩婷婷 《上海海事大学学报》2019,40(4):52-60

针对一个占主导地位的零售商和两个制造商(名牌产品和普通产品制造商)组成的二级供应链,考虑制造商之间的定价顺序和低碳偏好消费者对普通产品的接受度,分别构建普通产品制造商采用或不采用减排技术情景下的收益模型,得出各情景下最优零售价格和收益。研究发现:零售商选择销售哪种产品与顾客对普通产品的接受度有关;普通产品制造商的减排策略主要取决于减排成本。在相同减排策略下,若顾客对普通产品接受度较大,制造商同时定价时产品的最优零售价小于等于不同时定价时产品的最优零售价,而同时定价时制造商的最优收益大于等于不同时定价时的最优收益,因此两个制造商应同时定价以获得更大的收益。  相似文献