基于决策树的神经网络预测水泥熟料强度

测定水泥熟料强度的传统方法是实测水泥预制品在第3天与第28天的强度.为了简化并加快熟料强度的预测,设计了基于决策树的神经网络系统.该系统由两部分组成,先利用决策树确定水泥品种,再利用该种水泥样品的数据对神经网络进行训练.实验证明,经过训练的神经网络可以快速、准确地预测熟料的抗压、抗折强度.     

粗糙集在熟料强度影响因素选取中的应用研究

指出目前水泥厂预测熟料强度的主观性,提出利用粗糙集中的可辩识矩阵对熟料强度影响因素进行计算,能够选取出对强度贡献较大的主要影响因素.在后续的研究中,根据本次选取的因素对熟料强度进行科学合理地预测,进而保障出厂水泥的质量.因此,该研究对熟料强度预测提供了理论支持.     

小水泥厂综合管理系统

小水泥厂综合管理系统是个软件包，由财务，工资，人事档案，水泥生料比计算，熟料和水泥强度预报等管理子系统的构成。本文主要介绍财务，熟料和水泥强度预报两个系统的设计与实现方法。     

小水泥厂综合管理系统

小水泥厂综合管理系统是个软件包，由财务、工资、人事档案、水泥生料配比计算、熟料和水泥强度预报等管理子系统构成。本文主要介绍财务、熟料和水泥强度预报两个子系统的设计与实现方法。     

水泥熟料烧成系统建模方法研究进展

水泥熟料烧成系统模型对于理解水泥熟料煅烧过程、改进煅烧工艺、优化控制段烧状态、提高燃烧效率至关重要.然而,水泥熟料煅烧过程机理复杂,燃烧状态不稳定,存在建模难的问题.经过学者几十年的努力,已涌现出一大批优秀的研究成果,但仍存在一些不足和挑战.对此,针对水泥熟料烧成系统建模问题,综述国内外已有的建模方法和技术,分析各种方法的优势及存在的问题.最后,分析并指出水泥熟料烧成系统建模领域未来的研究方向和前景.     

基于遗传算法的水泥强度预测

文章根据水泥强度预测具有多变量、非线性、大时滞的特点,运用遗传算法,建立了水泥强度的非线性预测模型。通过对有关数据进行实例计算,得到了满意的效果,该模型为水泥强度的快速预测提供了一种新方法,有较好的实用价值。     

失重秤及其在水泥熟料配料系统中的应用

在水泥生产过程中,水泥熟料配料系统是制约水泥成品质量和产量的重要环节之一.水泥熟料配料系统承担着计量和按照配比控制给料量的任务,使得磨制水泥所需的三种物料:水泥熟料、矿渣、石膏,按照一定比例和一定速度喂入水泥磨中.通过控制各种物料的比例,可以达到控制水泥产品质量的目的,通过控制物料的入磨速度,即给料量,可以使得水泥磨机运行在最佳的工作状态,最大地发挥水泥磨机的生产能力,使之既不过负荷运行,也不欠负荷运行,从而防止“闷磨”事故的发生,达到提高产能降低电耗的目的.以前水泥熟料配料系统常用的计量控制设备主要有三种:一是调速电子皮带秤,二是悬臂式电子皮带秤加上电磁振动给料机,三是圆盘喂料机.其中第3种配料装置最原始,通过人工拨动圆盘喂料机上下料挡板的位置,粗略地控制下料量,没有任何计量手段,水泥产品质量和水泥磨机的台时产能均难以得到有效的保障.前两种配料装置虽然在配料计量控制精度上较     

f—CaO智能快速测定仪

介绍一种新的测定水泥熟料中 f-CaO 含量的智能快速测定仪,采用电导分析法,即测量溶液中的电导值,以求得溶液中某一物质的浓度。由单片机组成智能快速转换仪表系统,完成电导率与 f-CaO 含量的测量、转换以及显示、实现快速准确地测定水泥熟料中 f-CaO 的百分含量。     

基于现场总线技术的DCS在水泥熟料生产线中的应用

根据万吨线水泥熟料生产的特殊工艺特点,认真分析其对控制系统的要求,在此基础之上,充分发挥了现场总线技术及DCS技术两者优势,以系统集成为手段,给出一套基于Profibus现场总线协议的水泥熟料的生产线的集散控制系统(DCS),实现了对水泥熟料生产的集中管理和分散控制.     

基于局部PSO-LSSVM的水泥f-CaO测量方法研究

针对水泥熟料质量指标游离氧化钙含量难以实时检测的问题,提出一种基于局部pso-lssvm的软测量建模方法。在构建局部建模数据集时,同时考虑了数据样本之间的加权欧氏距离与向量的夹角,使得训练数据的选取更加具有实际意义。由于局部建模的时间开销较大,首先,采用加权k均值聚类算法对历史数据库进行聚类分析得到若干子样本集;其次,在与当前输入数据加权欧氏距离最小的子样本集中,建立基于pso-lssvm算法的局部软测量模型,计算得到当前游离氧化钙含量值;最后,应用实际数据进行训练和验证,结果表明,该方法较全局建模具有更好的泛化能力,能够满足水泥熟料游离氧化钙含量检测的实时性要求,对于实现水泥烧成系统的优化控制,提高能源利用率具有重要意义。     

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。     

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     

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.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。