专用铣削组合机床的设计

介绍了专用铣削组合机床设计的全过程及一些注意事项。     

基金增值模型

利用线性规划解决比较复杂的基金增值问题,给出了一种比较简单的算法,得出了最优的基金增值方法。该法算法简单、实用性强、是单位和家庭理财的较理想选择。     

Teachers’ perceptions of the benefits and challenges of three-dimensional virtual worlds for social skills practice

This case study describes how a systematic 7-Step Virtual Worlds Teacher Training Workshop guided the enculturation of 18 special education teachers into three-dimensional virtual worlds. The main purpose was to enable these teachers to make informed decisions about the usability of virtual worlds for students with social skills challenges, such as students with autism. A 10-point rating scale was used to measure the perceived usability of virtual worlds for social skills practice. Although the mean usability was higher after the intervention, a Wilcoxon signed-rank test did not reveal a statistically significant difference between the mean ratings (p = .14). A majority of the participants (76%) tended to be supportive of the idea of using virtual worlds in special education. Three key themes emerged from the qualitative instruments, namely, Virtual World Pedagogy, Virtual World Benefits, and Virtual World Challenges, encompassing 18 codes overall. This article focuses on the benefits and challenges of virtual worlds for social skills practice as perceived by special education teachers. Social skills practice and repeated practice opportunities in a stress-reduced environment emerged as the key benefits, although these affordances were affected by various challenges. The study concludes with suggestions for future research for special education purposes.     

Strategic process in universities: methodology development and information systems support

This paper aims to stress the potential use of executive support systems (ESS) in the formulation of university objectives and strategies. A strategic planning methodology based on different university experiences is proposed, along with an ESS that we have designed and developed to support the strategic process. We present the methodology and show how to put it into practice by using our application. Finally, we discuss some results obtained at the University of Las Palmas de Gran Canaria, as well as the major obstacles and resistance raised both to the strategic planning and to the computerization of the process     

一种基于S7-1200的六部十层电梯控制系统设计方案

基于西门子PLC中S7-1200系列的六部十层的电梯控制系统设计,包括硬件系统,软件系统,运动功能规划等方面的内容。同一楼宇六部电梯共同使用一个外呼集选器(呼叫信号),根据客人的需求进行相应的响应动作。经过PLC的合理编程优化以及贴合实际的仿真调试,本系统不仅有效地缩减了乘坐电梯的时间,还可以减少电梯运转时的功耗,并且进一步降低了电梯的运行成本,延长了其使用的时间周期。     

软件工程教学与学生创新实践

对软件工程教学创新的理论依据开展了研究，并从强调整体观、以人为本、彰显开放3个方面在培养学生创新精神和实践能力中进行了实践教学探索。     

自调匀整装置及其在棉纺设备上的应用

本介绍自调匀整装置的组成与分类、基本原理，并对自调匀整装置在棉纺设备上的应用、效果进行简要分析。     

挖掘多媒体教学软件的潜能——使用"命令预置"功能

随着计算机教育的普及,学校机房大多安装了多媒体教学软件。本文从机房管理层次,以屏蔽和恢复学生机的目录共享功能,清理学生机与安装软件两个实例,探讨了使用多媒体教学软件命令预置与远程命令功能提高管理效率的方法。     

软件开发中两种常用方法的分析与研究

结构化方法与面向对象方法是软件开发方法中两种最常用的方法，本文重点讨论了这两种开发方法的思想及开发过程，并进行了对比分析，提出了在软件开发实战中要把这两种开发方法相结合的观点。     

生料粉磨配合系统研究

生料粉磨是水泥生产的主要工序之一，而球磨机与选粉机如何配合使用，将决定粉磨机的台时产量。