A new robust fault-tolerant controller for self-repairing flight control system

A new robust fault-tolerant controller scheme integrating a main controller and a compensator for the self-repairing flight control system is discussed. The main controller is designed for high performance of the original faultless system. The compensating controller can be seen as a standalone loop added to the system to compensate the effects of fault guaranteeing the stability of the system. A design method is proposed using nonlinear dynamic inverse control as the main controller and nonlinear extended state observer-based compensator. System robustness is greatly improved by using the new configuration controller. The stability of the whole closed-loop system is analyzed. Feasibility and validity of the new controller is demonstrated with an aircraft simulation example.     

从五项“小康经济指标”看包头经济发展——包头市全面建设小康社会分析之二

国家统计局2008年发布了6方面23项建设小康社会监测指标,其中“经济发展”共有5项.文章分析了包头市5项经济反映的经济发展成就及存在的问题,并提出了解决的措施.     

辽代女性体育研究

在封建社会,辽代女性拥有的崇高社会地位是其他封建王朝女性所无法比拟的。辽代女性参与体育活动是其自身适应时代环境需要而不断努力的结果。辽代女性体育竞技意识较强、军事色彩浓厚、平等意识强烈以及娱乐性质鲜明,其形成源于辽代女性在政治上的话语权、经济上的支配权、游牧文化传习以及较少受封建礼教的束缚。     

建设应用型本科英语专业课堂实践教学

目前,我国应用型本科院校课堂实践教学是实践教学体系中最关键的教学环节,是应用型本科英语专业急需改革的教学环节之一。本文阐述应用型本科英语专业如何培养学生的交际应用能力、英语综合能力,使其成为高级英语专业技能人才。     

高职院校会计电算化实践教学的探索

随着经济的发展信息化已经逐步取代手工操作,很多大中型企业已经实行了会计电算化。在培养会计人才的各大院校中会计电算化课程是重要的实训课程,是会计专业领域的核心课程。为了满足学生毕业就可以很快上岗的现实要求,高职院校针对自身的特点,寻找提高会计电算化实训课程授课水平的方法。     

萨拉·悌斯黛尔及其诗歌赏析

萨拉.悌斯黛尔,美国20世纪初期最具迷人魅力的抒情诗人之一,但国内对她的诗歌研究却非常的匮乏。本文回顾了萨拉.悌斯黛尔的诗歌生涯,简要分析了她在人生不同阶段的主要诗歌作品,诗歌技巧,语言风格。     

“卓越计划”的宏观模型及评价体系构建

构建实施"卓越工程师教育培养计划"宏观模型,对于全面理解实施"卓越计划"的本质内涵及实施方略具有重要作用。课程整合、教学方法和校企合作三者互相支撑,综合实施,是"卓越计划"的核心内容。完善"卓越计划"的评价体系,是实现"卓越计划"目标任务的重要保障。实施"卓越计划"这样一项高等工程教育改革的系统性工程,必须建立健全完善的反馈机制,才能使其良性发展,达到预期目标。     

Professional Identity Development of Teacher Candidates Participating in an Informal Science Education Internship: A focus on drawings as evidence

This study investigated the professional identity development of teacher candidates participating in an informal afterschool science internship in a formal science teacher preparation programme. We used a qualitative research methodology. Data were collected from the teacher candidates, their informal internship mentors, and the researchers. The data were analysed through an identity development theoretical framework, informed by participants’ mental models of science teaching and learning. We learned that the experience in an afterschool informal internship encouraged the teacher candidates to see themselves, and to be seen by others, as enacting key recommendations by science education standards documents, including exhibiting: positive attitudes, sensitivity to diversity, and increasing confidence in facilitating hands‐on science participation, inquiry, and collaborative work. Our study provided evidence that the infusion of an informal science education internship in a formal science teacher education programme influenced positively participants’ professional identity development as science teachers.     

素质教育背景下大学生寝室人际交往关系调查研究——以南昌航空大学为例

素质教育是时代的最强音,是教育的主旋律。纵观当今高校素质教育工作开展所面临的一系列问题,其中寝室人际交往关系已经成为各大高校日渐关注的一个重点"项目"。本文通过调查问卷的形式,对南昌航空大学学生的寝室人际交往关系状况进行调查,从素质教育的视角,对建立良好的大学生寝室人际交往关系提出新思路。     

詹姆斯·乔伊斯的对话世界

本文从整体上把握詹姆斯·乔伊斯小说,把其嬗变的动态过程作为一个整体,通过研究小说文本内外的各种对话关系,揭示乔伊斯小说的文本对过去,现在和未来的影响。