采样时间序列的故障数据检测与滑动容错滤波

在导出采样时间序列数据滑动LS滤波的基础上,建立了一组简洁的故障数据检测与修复算法,并将故障数据修复与滤波估计相结合,构造了对突发性故障数据有良好容错能力的滑动容错滤波算法.仿真计算证实,该方法有效、可靠.     

基于DFTAPF补偿技术的谐波治理探讨

根据现场的谐波与电能质量测试结果,通过分析提出了基于DFTAPF（Design ForTestability Active Power Filter）型补偿技术的有源与无源相结合的混合型功率因数补偿与谐波治理方案,该方案不仅能有效的改善功率因数至0.95以上,还可以避免目前存在的谐波放大的情况,并对谐波进行治理;在保证电能质量符合有关国家标准要求的同时,改善公司配电系统电能质量、提高功率因数并达到节能降耗的目标。     

等高线测绘过程中常见技术问题的解决方法

针对等高线测绘中经常出现的一些技术问题,以南方CASS软件为例对等高线的外业测量到内业绘制方法作了详细介绍,主要包括地貌特征点采集、高程点预处理、绘制地性线、提取高程点数据文件、DTM建立与修改、绘制等高线、等高线后处理工作、等高线的滤波与拟合等内容。     

基于SCORM标准的学习管理系统设计

文章详细分析了现有网络课件与学习管理系统的问题,提出了基于SCORM标准的网络学习管理系统,该系统可根据不同教学对象和教学要求对教学课件重新组织和修改,学生在学习时,系统可自动跟踪和记录学生的学习过程数据(包括:学习时长、作业与测试的成绩、论坛发言、学习进度等),并能将系统中重新组织和修改过的课件导出SCORM标准的课件包,该系统的设计显著降低了课件后期的维护成本,延长了课件的生命周期。     

一种变论域自适应模糊跟踪系统的设计

文章提出一类改进的自适应模糊跟踪系统,选择误差向量作为模糊系统的输入向量,并将变论域思想与之相结合,构成了一种跟踪系统的设计方法,该方法利用李雅普诺夫稳定性理论,证明了其可行性,仿真结果验证了其有效性.     

Disabled students in the performing arts – are we setting them up to succeed?

Professional training opportunities for students with physical and learning disabilities in the performing arts are conceived and developed in the context of government policy initiatives for inclusion and models of disability that aim to ensure that educational provision is of a kind which does not stigmatise individuals or devalue their performance. In this paper, we consider three partnership programmes linking two theatre companies and one dance company with schools that provide high-level mainstream training. The programmes were planned to offer paths to progression for disabled students, and we examine what the programmes have taught us about the characteristics of inclusive practice in drama and dance training that can set disabled students up to succeed.     

Mentor skills in a new context: working with trainee teachers to develop the use of information and communications technology in their subject teaching

This article reports on the findings of a study looking at the role of the school‐based mentor in developing the competence of trainee teachers in relation to the use of information and communications technology (ICT) in the classroom. One key factor in determining the contribution of the mentor appears to be the level of confidence in his/her ability to use ICT, both personally and in the classroom, which in turn has an effect on both the nature and range of the support given to the trainee teacher. Questionnaire and interview data indicated that many mentors feel that their ICT expertise is often not as great as that of the trainee (and therefore feel less confident and/or willing to offer guidance in this area) and that they are unable to offer support to trainees in relation to contexts that involve the use of ICT in the classroom. The authors would suggest that traditional approaches to mentoring might need to be reviewed in the light of this and they would argue that there could be benefits from adopting more innovative ways of working whereby the trainee’s ICT knowledge and skills might be used to full effect when combined with the mentor’s understanding of classroom teaching and learning. Such a model has implications for the providers of initial teacher training and these are discussed.     

Improving ADA Access

Summary

The Americans with Disabilities Act of 1990 (ADA) motivated libraries all over the United States to evaluate their accommodations and services to patrons with disabilities. This article presents a case study of the Texas Tech University Libraries project to meet the needs of their patrons in relation to ADA. The study focuses on including adaptive technologies in the library environment to aid blind, hearing, visually and physically-impaired patrons and increasing library staff awareness of the needs of patrons with disabilities. Findings from the study will also benefit school, public, and special libraries that are evaluating their access for patrons with disabilities.     

THE COMMUNICATIVE ACTION OF JOURNALISTS AND PUBLIC INFORMATION OFFICERS

Public information officers (PIOs) represent a type of communications professional distinct from public relations practitioners (PRPs). From a structural functionalist viewpoint, journalists and PIOs share goals: both see themselves as facilitating the information flow into the public sphere. Habermas' communicative action models defining journalists as committed to revealing the “whole truth” to the public, but PRPs as enmeshed in advocating private interests, do not adequately describe PIOs. Although journalists' and PIOs' goals are similar, barriers exist to inhibit their cooperation in achieving those mutual goals. Such barriers arise from academic ideal types fostering inaccurate perceptions of each other, perceptions reinforced by adaptive structuration within their respective organizations' cultures. Empirical data support that PIOs' and journalists' divergent attitudes about their professional praxis combine with ideal-type constructions and organizational cultures to produce communication disconnects between the two.     

基于自适应控制的混沌系统分时同步

讨论混沌系统的分时同步.通过设计控制策略实现了一个混沌系统的一个分量对另一个混沌系统的任一分量的分时跟踪同步,并且在同步的过程中,系统的参数也被识别.最后仿真结果表明了该方法的有效性.