VB编程实现自然分层型水蓄冷的斜温层厚度预测

斜温层作为评判自然分层型水蓄冷罐中的蓄冷效率的指标之一,是设计人员在设计时必须考虑的.利用VB编程对热方程式进行计算可以快速得到斜温层的厚度,从而可以进行蓄冷效率的预测,为设计人员提供便利.     

单片机在冰蓄冷中央空调系统控制中的应用

本系统是利用单片机采集中央空调的前端数据,计算机经过分析,判断冰蓄冷中央空调系统制冷主机与蓄冷量是否达到最佳匹配,进而智能调配冰蓄冷中央空调系统工况。     

单片机在冰蓄冷中央空调系统控制中的应用

本系统是利用单片机采集中央空调的前端数据,计算机经过分析,判断冰蓄冷中央空调系统制冷主机与蓄冷量是否达到最佳匹配,进而智能调配冰蓄冷中央空调系统工况.     

北京某单位数据中心节能优化分析

针对某单位大型数据中心早期规划无后备冷源情况及我国北方地区无引入自然冷源的情况，在综合分析现场实际情况下，采用蓄冷罐+板式换热器的组合方案进行节能及增加后备能源。根据北京地区的历史天气数据，分析数据中心核心指标PUE值，进而计算得节能目标值，确定了方案的合理可行性及经济性。     

基于蓄冷技术的CPU散热系统

随着家用电脑CPU性能的提升,发热功耗也相应的快速上升,针对散热系统的性能要求也越来越高,而散热能力也往往成为性能进一步提高的瓶颈。本文提出了一种基于蓄冷技术的CPU散热系统,通过冰块的蓄冷与水循环散热相配合,提高CPU散热系统的能力,从而达到提高CPU超频的能力,并通过实验对相关系统性能进行了验证。     

雨水集蓄利用区生态经济系统的优化规划

雨水的集蓄利用使区域生态经济系统发生了变化。将层次分析法应用到雨水集蓄利用区生态经济系统的规划问题上,对设定的各种方案进行优劣性评价,为解决雨水集蓄利用区复杂的生态经济规划提供决策依据。实例证明,该优化方法有利于发挥当地自然优势、经济优势,还有利于生态环境的改善。     

雨水集蓄利用区生态经济系统的优化规划

雨水的集蓄利用使区域生态经济系统发生了变化.将层次分析法应用到雨水集蓄利用区生态经济系统的规划问题上,对设定的各种方案进行优劣性评价,为解决雨水集蓄利用区复杂的生态经济规划提供决策依据.实例证明,该优化方法有利于发挥当地自然优势、经济优势,还有利于生态环境的改善.     

测井曲线自动分层的建模与应用

测井曲线分层是物理勘探中的首要工作.论文在分析自然伽玛、自然电位、密度等多条曲线形态特征的基础上,提出了主成分分析、小波变换与综合方差比分析相结合的方法,完成了对多测井曲线的自动分层.针对非地层因素引起的数据干扰问题,加入了程序比较字符串的方式提取公共曲线,并归并薄层界面.实际结果表明,该方法兼顾了分层效率和分层精度的要求,具有较高的应用价值.     

面向对象方法在水蓄冷PLC编程中应用分析

状态稳定的磁场实验装置对于整个系统的运行过程都起到非常重要的作用。只有先建立一个合适的蓄冷系统的模型,才能够更好地实现抽象密封的工作。实践表明,面向对象的方法可以在较短的时间内就提高编程的效率,也使得整个水蓄冷PLC本身有更强的实用性,从而使得运行的效率也会变得更高。     

冰蓄冷空调负荷预测的预估校正模型

为减小冰蓄冷空调系统的运行费用,降低空调系统的能耗,更精准地预测空调冷负荷,提出一种利用小波神经网络实现冰蓄冷空调负荷预测的方法,通过直接启发式动态规划实时优化模型参数,建立冰蓄冷空调系统的预估校正模型,解决传统神经网络预测收敛慢,易陷入局部最优,精度相对低的缺点,保证整个系统的运行稳定性。实验结果表明,该方法在冰蓄冷空调负荷预测中具有较高的准确性和鲁棒性,具有良好的应用价值。     

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。     

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。