基于PLC数值处理模块的PID控制程序研究

为了方便测试先进PID控制算法,依靠PLC数值处理模块,设计完成增量PID控制器程序,在PLC实验模拟对给定值的跟踪,与仿真结果一致。分析程序实现过程,证明浮点数值转换的重要性,设计延时转换条件,解决远程跳步影响数值处理的故障,指出分析PLC程序扫描顺序是解决程序开发错误的有效方向。     

大学生计算机程序设计竞赛相关课程的教学改革

为培养学生全方位多角度分析问题和解决实际问题的能力,促使和调动学生学习的积极性,本文提出一种基于大学生计算机程序设计竞赛的课程教学体系,将大学生计算机程序设计竞赛机制引入到相关课程的常规教学中,改变了课程的传统授课方式和教学形式.经过4年的改革尝试,实践结果表明,这样的教学模式能够培养学生的自主学习能力,激发学生的学习兴趣,提高学生的实践能力,最终达到培养学生全方位多角度分析问题和解决实际问题的能力.     

Multi-objective comprehensive optimization of fuel consumption and emission for hybrid electric vehicles

Aiming to reduce fuel consumption and emissions of a dual-clutch hybrid electric vehicle during cold start, multi- objective optimization for fuel consumption and HC/CO emission from a TWC （three-way catalytic converter） outlet is presented in this paper. DP （dynamic programming） considering dual-state variables is proposed based on the Belhnan optimality principle. Both the battery SOC （state of charge） and the temperature of TWC monolith are considered in the algorithm simultaneously. In this way the global optimal control strategy and the Pareto optimal solution of multi-objective function are derived. Simulation results show that the proposed method is able to promote the TWC light-off significantly by decreasing the engine＇s load and improving exhaust temperature from the outlet of the engine, in comparison with original DP considering the single battery SOC. Compared to the results achieved by rule-based control strategy, fuel economy and emission of TWC outlet for cold start are optimized comprehensively. Each indicator of Pareto solution set shows the significant improvement.     

推动实验课程教学改革培养学生创新能力

以程序设计类实验课程教学为依托,分析针对大学生创新能力培养开展的实验课程改革,推动计算机语言类实验课程建设,提高学生自身素质,增强就业竞争力。     

以《网络编程技术》课程为例的工程化教学改革研究

首先阐述了高校计算机课程教育特点,介绍了采用工程化教学方法的目的、意义,突出了在高校课程教学过程中采用工程化教学方法的必要性,然后简述了《网络编程技术》课程教学现状,分析其存在的问题,最后提出“一个中心、两项发展、三重提高”,将工程化教学方法引入《网络编程技术》课程教学过程当中,提高教学质量与学生素质。     

高校学籍管理系统的设计与应用

依托高校现有的数字化校园网络平台和办公自动化系统等硬软件资源,融入ASP编程技术、Web万维网技术、Access数据库技术、MIS管理信息系统、B/S开发模式等综合应用,以ASP编程技术来开发系统管理软件。通过对系统运行环镜、整体架构、数据库逻辑结构ER图的全面设计,实现对学生学籍管理相关数据的查询、修改、添加、删除等功能操作。在性能方面实现系统的全面性、可靠性、安全性、兼容性、高效性和可维护性。实验证明,系统性能稳定、功能齐全、应用效果显著,具有较高的推广应用价值。     

基于双层规划的危险品运输网络设计

分析危险品运输网络设计的一般过程及其双重约束特征,在此基础上兼顾政府与运输商双方不同的利益目标,建立一个双层规划模型,借用库恩-塔克条件提出该模型的一个简单解法,并利用算例进行分析.     

一种能处理复杂的数据对象的编程语言

本文介绍了一种与FORTRAN完全兼容并加处理复杂的数据对象的编程语言CADTRAN及其实现。语言文体保持FORTRAN风格,定义严谨,易于学习和掌握,有较强的出错处理能力。     

港口通过量结构优化的多目标决策

本文在分析港口生产规律性的基础上,运用现代管理决策方法——目标规划方法,来解决港口通过量结构优化的多目标问题。文中通过建立目标规划模型和模型的计算机程序化,在同时考虑多个矛盾的优化目标的情况下,取得了满足各种不同决策要求的优化结果,为港口制定切实有效的生产计划提供了依据。     

Sorting on GPUs for large scale datasets: A thorough comparison

Although sort has been extensively studied in many research works, it still remains a challenge in particular if we consider the implications of novel processor technologies such as manycores (i.e. GPUs, Cell/BE, multicore, etc.). In this paper, we compare different algorithms for sorting integers on stream multiprocessors and we discuss their viability on large datasets (such as those managed by search engines). In order to fully exploit the potentiality of the underlying architecture, we designed an optimized version of sorting network in the K-model, a novel computational model designed to consider all the important features of many-core architectures. According to K-model, our bitonic sorting network mapping improves the three main aspects of many-core architectures, i.e. the processors exploitation, and the on-chip/off-chip memory bandwidth utilization. Furthermore we are able to attain a space complexity of Θ(1). We experimentally compare our solution with state-of-the-art ones (namely, Quicksort and Radixsort) on GPUs. We also compute the complexity in the K-model for such algorithms. The conducted evaluation highlight that our bitonic sorting network is faster than Quicksort and slightly slower than radix, yet being an in-place solution it consumes less memory than both algorithms.