高阶非线性不确定系统的自适应实际输出跟踪控制

本文研究了一类高阶非线性不确定系统的自适应实际输出跟踪控制问题, 该问题在未知控制系数的下界精确知道的假设下已经得到了研究. 基于新的鲁棒自适应控制和连续控制思想, 成功去除该假设条件. 进而应用增加幂次积分的方法, 给出了构造连续自适应实际输出跟踪控制器的系统化方法. 该控制器确保闭环系统的所有状态全局稳定, 并且经过有限时间后, 跟踪误差可以被某一事先给定的任意正数界定. 最后, 通过一个仿真算例验证了理论结果的正确性.     

Serious games for higher education: a framework for reducing design complexity

Abstract Serious games open up many new opportunities for complex skills learning in higher education. The inherent complexity of such games, though, requires large efforts for their development. This paper presents a framework for serious game design, which aims to reduce the design complexity at conceptual, technical and practical levels. The approach focuses on a relevant subset of serious games labelled as scenario‐based games. At the conceptual level, it identifies the basic elements that make up the static game configuration; it also describes the game dynamics, i.e. the state changes of the various game components in the course of time. At the technical level, it presents a basic system architecture, which comprises various building tools. Various building tools will be explained and illustrated with technical implementations that are part of the Emergo toolkit for scenario‐based game development. At the practical level, a set of design principles are presented for controlling and reducing game design complexity. The principles cover the topics of game structure, feedback and game representation, respectively. Practical application of the framework and the associated toolkit is briefly reported and evaluated.     

Adobe Photoshop鲜为人知的操作技巧及应用

Photoshop是世界著名的平面设计软件,它具有强大的绘图和图像编辑功能。有很多实用操作技巧,在一般的教学或教程中无法获得。该文针对这些技巧,做了比较详细的讲解,从而可以帮助一些的初学者更好的掌握Photoshop。     

实践教学体系中学生能力的提高与发展

职业教育的培养目标是生产、建设、管理等一线需要的高等技术应用性人才,职业能力的培养与形成是职业教育教学工作的核心任务,这就奠定了实践教学在职业教育教学中的重要地位。本文主旨在于弄清楚实践教学的本质与特征,分析并构建科学、合理的教学体系,对职业教育的教学观、质量观及学生能力的提高与发展等提出合理化建议。     

虚拟机在实践教学中的应用

随着高职院校课程的不断改革深入,越来越重视实践教学。虚拟技术的发展和其自身所具有的特点,被高校广泛的应用在实践教学上。虚拟机的应用不仅充分有效的利用现有设备,而且对硬件设备及系统具有很好的安全性。教学上更加灵活、方便的设计实践项目,从而提高实践教学的质量。     

On the model-based networked control for singularly perturbed systems

In this paper, the control of a two-time-scale plant, where the sensor is connected to a linear controller/actuator via a network is addressed. The slow and fast systems of singularly perturbed systems are used to produce an estimate of the plant state behavior between transmission times, by which one can reduce the usage of the network. The approximate solutions of the whole systems are derived and it is shown that the whole systems via the network control are generally asymptotically stable as long as their slow and fast systems are both stable. These results are also extended to the case of network delay.     

Knowledge assessment-practical example in testing

Knowledge assessment is inseparable part of current e-learning technologies. It can be used for self-assessment of students to give them feedback about their progress in a study or for an intermediate or final grading for tutors. However, knowledge tests are not developed with the adequate care. Author＇s experience in the area of knowledge assessment led to a confidence the ＂unstructured＂ testing is usually used in this process. It means that many of knowledge tests are not designed to reveal the reached level of knowledge. Moreover, testing suites are reviewed very seldom regarding their validity and items correlation. This paper presents experiences gained during the design and implementation of specific software focused on teaching several principles of the Unix-like operating systems. The structure of the specific assignment follows the Bloom＇s taxonomy of educational objectives.     

“可编程序控制器原理及其应用”课程试验教学软件的研制

本文在原有的TVT-90硬件和软件实验系统基础上,用组态软件实现"可编程序控制器原理及其应用"试验的动态模拟和仿真,在计算机上实现实验过程的动画仿真,使学生在实验过程中可以进行与生产过程的交互模拟,反复验证自己的程序设计过程是否正确,并且理解真实的生产装置的控制过程。     

浅议地方院校IT类专业教育改革

本文概要分析了经济、社会及产业发展对IT专业人才需求的发展趋势;明确提出了地方高校IT类专业本科教育的目标定位;围绕地方高校IT类课程体系的基本架构、课程内容选择与组织,以及课程评价方法与形式的改革与创新进行了深入探讨;最后,针对地方院校IT类专业教学创新的实施,就特色专业应用方向的确定、教学条件建设、课程体系与教材改革,以及实践教学与考核机制探索中需要注意的问题给出了具体建议。     

工艺品设计专业实践性教学环节的改革与探索

高职教育培养的人才,应具有职业性和实践性等特点,所以实践教学是高职教育的重要环节。本文针对工艺品设计专业实践性教学这一环节进行实践教学体系、内容的改革、方法与途径、基地建设以及实践教学体系的实施和实践教学管理与质量提高等方面进行探索。