连续退火生产线中卷取机张力控制研究

基于卷取机在连退生产线的重要性,分析卷取机的机械结构,研究卷取机的控制系统。通过实际应用,说明采用间接张力控制的最大转矩法来实现卷取机系统的恒张力是有效的。     

Causality dilemma: creating a twenty-first century university archive

For its fifteenth anniversary, the Jay Sexter Library at Touro University Nevada (TUN) sought ways to capture its institutional history by founding an archive. Among many challenges, the library struggled to convince the administration of the importance of an archive. To generate interest in TUN''s history, a task force comprising library, executive administration, and advancement staff hosted and recorded a panel event with some of the university''s original faculty, staff, and administration. By having this event, new TUN employees were able to experience the shared knowledge of TUN''s early days, and the library was able to create and preserve its own institutional history.     

Validating students' library experience survey using rasch model

Few studies have investigated the psychometric property of new instruments developed locally to assess students' library experience, such as their behavior, perception and attitude toward library use. Validating a survey instrument is critical because using untested assessment instruments is more likely to lead to a lack of credibility in the results, as well as a lack of accuracy in the study's purpose (Sullivan, 2011). This study used data from a locally developed student library experience survey distributed in Spring 2018 at a large public research university library to examine undergraduate and graduate students' behaviors, attitudes and perceptions of library use. To test the validity of the survey as to whether six subdomains of the library experience survey contributed to a single construct, library experience, the study used Rasch model framework. This study contributes to the field as a first example using the Rasch model for library assessment purposes. Suggestions for best practices are discussed.     

儿童注意力品质训练技术的研究与开发

传统注意力测验是以纸笔的形式进行测试。本研究依据陈国鹏等人编制的《中小学生注意力测验》所得五个因子:注意的稳定性、注意的广度、注意的转移、注意的持续性、注意的集中性开发了"儿童注意力品质游戏测验软件"。经检验,该软件有较好的信度和效度。它不仅可用于普通学生及注意缺陷儿童的注意测评,同时也可用该技术对学生进行注意力训练,从而提高注意缺陷儿童及普通学生的注意力品质。     

Citation Needed

The ability to add hyperlinks to a news story is a key feature of online news. In addition to the—aging—technical novelty, one can wonder what functions hyperlinks perform in news stories. Previous research, as well as my previous examination of meta-journalistic discourses, has shown that one of the alleged functions of links is to display the writer's sources. In that sense, hyperlinks are “journalistic objects of evidence” as they can directly point to the documents, data or discourses used as rough material for a news story. The present paper puts that particular function of hyperlinks to the test. It conducts a content analysis on a sub-sample of the stories published on six Belgian news sites that contain at least one external link, and compares the links with the sources explicitly mentioned in the news story itself. Results highlight that links and the mentions of sources do not overlap completely. Many sources are not reflected in links, and most links do not point to primary sources per se. Other functions of links emerge, such as providing a service or contextual information to the readers. These findings thus question the material nature of “journalistic objects of evidence” and the possibility for journalists to build networks of distributed responsibility with links.     

News With an Attitude: Assessing the Mechanisms Underlying the Effects of Opinionated News

Opinionated news targets communities of likeminded viewers, relies on dramaturgical storytelling techniques, and shares characteristics with political satire. Accordingly, opinionated news should be understood as a specific form of political entertainment. We have investigated the mechanisms underlying the effects of opinionated news on political attitudes using an experimental design that employed manipulated television news items. Findings confirm that opinionated news positively affects policy attitudes via its presumed influence on others and subsequent perceptions of the opinion climate. However, opinionated news also negatively affects attitudes via hostile media perceptions and evoked anger, especially for people with incongruent political preferences. Due to these opposing processes, we found no total effect of opinionated news on policy attitudes. Conditions are discussed under which either the positive or the negative indirect effect is likely to dominate.     

Possible Futures: E-Reserves,Decentralization, and Collaboration

E-Reserves is a library support service that was conceived as a strategic, decentralized response to changes occurring in curricular resource formats during the 1990s. It is a service that has since become ubiquitous in academic libraries and one that is presently facing a crisis spurred by shifts in user culture, e-learning environments, and modes of scholarship production. Challenges facing E-Reserve services are compounded by a professional culture of isolation and by the absence of best practices and internal assessment measures that can serve as effective rubrics to measure changes or test the efficacy of current service models. This analysis of the history of E-Reserve services and evaluation of curricular support needs of faculty and students sheds light on the current crisis and envisions possible futures for the service. The article advocates for a move toward hybrid and iterative service models and highlights the importance of collaboration and outreach to ensure the future viability of E-Reserve services.     

Characteristics of primary teacher training programmes on inclusion: a literature focus

Background: The implementation of inclusive education creates challenges for classroom teachers who have to meet the learning needs of students with and without special educational needs (SEN). Research has revealed that teachers’ readiness and willingness to accommodate the learning needs of students with SEN was determined by their training. Though much research on teacher training and inclusive education has been conducted over two decades, less is known about the adequacy of such training in terms of components and effectiveness.

Purpose: The purpose of this review is to present a focused analysis of: (1) studies that examined, in detail, the components of teacher training programmes for pre-service or in-service teachers in regular primary schools in terms of content, length, etc., and (2) consideration of the effectiveness of these training programmes.

Design and methods: The literature review was restricted to empirical studies published in international peer-reviewed journals after 1994 (i.e. since the Salamanca statement was signed) by using the electronic browser ‘EBSCO host Complete’. After applying the keywords ‘teacher’ and ‘educator’, they were combined with the following terms: training, disabilities, inclusion, inclusive education, impairment, special educational needs, children with special needs and disorder. The search was deliberately restricted to papers where study participants were pre-service or in-service teachers in regular primary schools, and ultimately yielded a small core of 13 studies for detailed review. The first research question was analysed in terms of the training programme’s structure and content, covering aspects such as type of disability, topic, length, medium of course delivery and learning activities. For the second research question, the effectiveness of the quantitative studies was evaluated based on the Cohen’s d effect size, whereas the qualitative studies were considered as effective based on the calculation of percentage of non-overlapping data (PND).

Conclusions: Analysis indicated that the majority of training programmes focused on attitude, knowledge and skills. The training programmes were also centred on what might be considered short-term practice and supplemented with field experiences. Although the training programmes appeared to have positive effects on teachers’ attitudes, knowledge and skills, follow-up sessions and students’ outcomes measures may increase training effectiveness.