垃圾渗滤液处理厂自动控制系统的设计与实现

基于垃圾渗滤液处理厂工艺流程特点,通过对国内该行业生产控制现状的分析,从系统结构、软硬件配置和实现功能几方面阐述了自动控制系统的设计与实现,并着重论证了系统中的SBR自动控制,指出自动控制系统应是紧密结合工艺,集控制功能、管理功能和数据处理功能于一体的系统。     

轨道交通综合监控仿真培训系统的设计与实现

本文设计并实现了一套轨道交通综合监控仿真培训系统（TMS）,根据轨道交通车站级综合监控仿真培训系统的实际应用,介绍了系统的构成和功能。该系统不仅能够模拟仿真综合监控系统各专业的基本功能,包括各专业的状态监视和控制功能、顺控、模式及闭锁等功能,而且能够实现设备状态动态变化、控制干预和自定义场景等高级功能。     

PCS7在热轧水处理自动控制系统中的应用

基于热轧水处理工艺流程特点,结合PCS7系统性能特点,从系统结构、软硬件配置和实现功能几方面阐述了自动控制系统的设计与实现,并着重论证了系统中的高压水泵自动控制,指出自动控制系统应是紧密结合工艺,集控制功能、管理功能和数据处理功能于一体的系统.     

移动流媒体选播系统控制服务器研究

从媒体选播系统整体结构和功能需求出发,详细分析了移动流媒体选播系统中控制服务器和媒体数据服务器的功能和主要业务流程,然后研究选播系统中控制服务器设计和实现方案。     

矿井主要通风机监控系统设计

介绍了一种矿井主要通风机监控系统设计方案,详细论述了系统结构、功能及其软硬件设计。该系统硬件以S7-300PLC为核心,软件采用组态软件INTouch9.5实现,采用手动控制、系统就地控制、远程控制三级控制模式,实现了对主要通风机运行过程的实时监控功能。     

高速电视测量仪伺服系统的设计与实现

介绍了高速电视测量仪伺服控制系统的设计与实现,分析了系统的原理和主要功能,阐述了系统的硬件设计和软件控制流程,该系统具有开发周期短,调试方便,可靠性高等特点。     

袋装产品包装输送线监控系统设计

针对目前袋装产品包装输送线存在故障率高、自动化程度低等问题,设计了一种基于PLC的输送线监控系统。文中详细介绍了系统的工艺流程和功能,及软、硬件设计实现。现场实际应用表明,该系统实现了袋装产品包装输送线的本、异地控制,对输送线运行过程实时监测和故障诊断功能,提高了系统运行的安全性和可靠性。     

计算机控制在莱钢型钢烧结配料中的研究与应用

主要介绍了新区烧结自动配料计算机控制系统的三电一体化设计思路和设计特点,主要包括仪控设计、计算机控制系统设、电控设计以及控制功能的实现.     

ASP.NET环境下基于角色的权限控制的实现

通过分析传统权限控制设计中存在的问题和不足,结合基于角色的访问控制的原理,实现了一个基于ASP.NET技术的B/S信息系统的权限控制系统。文中提出的权限控制系统利用子系统编码、模块编码、页面编码和功能编码以及它们之间的关系来实现权限的控制,达到了页面级别和功能级别的权限控制,很好地解决了传统权限控制设计的不足,大大地提高了系统的灵活性与可扩展性。     

数据库应用系统全面功能权限控制的Delphi实现技术

在数据库应用系统中,为不同的用户设置不同的使用权限,是非常重要的一项功能;但使用程序设计语言实现功能比较复杂的应用系统的功能权限控制是一件很不容易的事。文章介绍了使用Delphi的TActionList组件设计数据库应用系统全面功能权限控制的实现技术和方法,并给出应用示例。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.