一维型材合理下料的数学模型

一维型材合理下料问题的解决是多维下料问题优化的基础。从模型建立的角度出发,以材料利用率高达97.84%为目标,用非线性规划模型Ⅱ改进整数规划模型Ⅰ,解决整数规划模型Ⅰ中人工枚举下料方案而导致的决策变量偏多的问题,减少生产过程的复杂性,降低生产成本和管理成本,提高切割方案的生成速度。非线性规划模型Ⅱ解决了多种型材下料问题的最优化,使企业效益达到最大化。     

基于网络教学平台的面向对象程序设计教学改革探索

随着计算机技术的飞速发展和教学理念的改变,高校已普遍采用网络教学平台作为传统教育模式的补充和改进.以面向对象程序设计网络课程为例,对基干网络教学平台的网络课程建设及其教学优势和存在的问题进行详细阐述.     

案例引导—任务驱动教学法在程序设计课程教学中的应用

本文在分析程序设计课程教学情况和案例引导-任务驱动教学法的基础上,阐述了如何将案例引导—任务驱动教学法应用于程序设计课程教学,以提高学生实际编程能力。     

基于8051单片机的高效C程序设计的技巧

基于8051核的MCU结构特征,结合C语言自身特点,给出若干高效C程序设计的技巧。实践证明,在C程序设计中依据8051的功能特性对源代码进行优化,能大幅度提高最终程序的执行效率。     

行动导向教学模式的《Web应用程序设计》课程改革

探讨在应用型本科IT类专业《Web应用程序设计》课程教学中引入行动导向教学模式的可行性,阐明了基于行动导向教学模式的课程改革基本思路,并对课程内容体系、教学方式方法和学习评价三方面进行深入探讨,提出了具体的、较为系统的改革方案。     

Computer Programming for Librarians: A Study of Job Postings for Library Technologists

The rapid changes in technology used in the library and cultural heritage sectors can make it difficult for early career librarians and LIS students interested in library technology positions to know what skills will be most beneficial to their job search. In this study, 492 librarian and archivist job postings from the Code4Libs Jobs website from between 2008 and 2018 were collected and analyzed to find which programming technologies are most in demand overall and which are most requested for specific types of jobs and specific types of employers, including changes over time. The results provide a glimpse of programming languages and technologies that are widely useful in the field of library technology today, as well as those that are growing in use.     

CASIO编程计算器在坐标转换中的应用

在工程施工测量中,运用坐标转换公式进行不同坐标系转换的计算很容易出错,而且速度较慢。本文依据工程测量学中的基础理论知识和CASIO可编程计算器,总结编制坐标转换程序,并结合工程案例,验证了程序运行结果的正确性与可靠性。     

Kinematic Study on Motoman HP6 Arc Welding Robot Based on Unigraphics

The links of Motoman HP6 arc welding robot are considered as an open kinematic chain which consists of a series of rotational joints through concatenation. One end of the open chain is fixed to the base or the earth, and the other end which is free fastens the end executor to complete various duties. Each link of this arc welding robot has four kinds of Denavit-Hartenberg parameters: common normal length between two adjacent links, angle of two adjacent joints, distance between the crossing of common normal length and two joints axes, and angle of two adjacent links. The displacement relation between each link of the Motoman HP6 arc welding robot is introduced, and the kinematic positive-going solution and the kinematic passive-going solution are calculated.     

基于FX0 N编程口通信的实弹钻孔安全测控系统实现

介绍并分析了三菱FX0N型PLC的编程口通信协议,以实现PC与PLC编程口串行通信,满足上位机对PLC控制系统运行数据监控的需要。且在Visual Basic软件开发环境中利用MSComm串行通信控件,编制出PLC与上位计算机之间的通信软件。经过在实际系统的应用表明,可实现与PC机间的可靠通信。     

基于RBFNN和HDP方法的蔗糖生产澄清工段中和pH值优化控制器的研究

澄清工段是亚硫酸法生产蔗糖的关键过程之一,而pH值又是该过程最关键的工艺指标,能否将其pH值稳定地控制在要求范围将影响整个糖厂产量和白糖质量．由于该过程是一个复杂的物理、化学过程,具有多输入、大滞后、强非线性、时变参数等特点,因此该过程pH值的稳定控制和优化问题一直没有得到很好的解决．采用径向基函数神经网络（RadialBasisFunctionNeuralNetwork,RBFNN）来建立该过程的神经网络模型．然后利用RBFNN来设计基于启发式动态规划（HeuristicDynamicProgramming,HDP）方法的优化控制器．仿真结果表明该方法可以取得满意的控制效果,为解决复杂非线性动态系统的优化控制问题提供了一种新途径．