基于Python开发气象服务器运行系统界面

介绍了使用Python下的图形工具包PyQt开发气象服务器用户图形界面的方法.利用气象专用计算机可以缩短计算时间,并可进行实时系统监控,从而提高了气象预报的准确性.另外,给出了在Python中编程的一些技巧.     

基于Python的海洋气象数据可视化技术研究

针对现有可视化方法在展示海洋气象数据时,存在可视化覆盖范围小、可视化数据量少的问题,文章提出基于Python的海洋气象数据可视化技术研究。对来自不同数据源、不同类型、不同格式的多源异构海洋气象数据,采用清洗、格式转换等方式实现同一化处理;绘制海洋气象数据体,并对其进行三维立体分割;利用Python技术,实现非结构化数据与结构化数据的可视化展现。实验结果表明,所提可视化方法可以实现对更大范围、更多数量的海洋气象数据的展示,具备更加理想的可视化效果。     

气象报文信息卫星通信传输的优化模型研究

在某些紧急救援任务中,为准确快速地获取地面观测信息,本文建立了传输时间和气象分队数量之间的优化模型,并给出了主站和副站气象报文信息共享的一般传输方案。使用Matlab软件和Python语言验证了所建立的优化模型,进一步证明了模型结果的合理性。     

基于Python爬虫的泰安市天气数据可视化分析

天气深刻影响着人们的生产生活,随着全媒体时代的到来,人们能从多种渠道接收各类天气数据。比起抽象的数据,生动的图像更能清晰有效地传达天气信息和呈现规律。文章利用Python爬虫技术获取了2022年泰安市历史天气数据,利用PyEcharts可视化工具对全年每月天气现象分布、全年最高和最低气温变化情况、全年风向分布进行直观的可视化展示。Python数据爬取+PyEcharts可视化方法简单高效,可为挖掘、整合不同类型的天气数据进行可视化展示提供参考方案,探索气象数据信息多元化表达途径,提高气象服务水平。     

金融危机下的嵌入式市场

在经历数个Beta版本后，Python2．6终于迎来了正式版的发布。Python2．6开发过程中，Bug管理工作从先前的SourceForge平台转移到基于开源。项目Roundup的Bug管理系统之上。同时，新的文档将使用Python开源项目Sphinx来产生美观的HTML输出，以替代之前一直沿用的LaTex格式。除此之外，Python2．6在字符串格式化、异常处理、Byte文本方面都进行了改进。更多细节可以查看Python开发者林胜在站点onlypython．com给出的Python2．6版本新特性全文翻译。     

梦想无限 快乐天地——刘路远与网龙的快乐成长

在芝加哥举办的PyCon 2008大会上，Python之父Guido为开发者带来Python 3000及其新特性的主题演讲，并为开发者如何适应语言新特性，及迎接Python 3000应该做的准备提供了建议。     

基于Python的混合语言编程及其实现

Python是一种被广泛使用的脚本语言，它特别适用于混合语言编程的软件开发。本文介绍了Python语言的特点，给出了混合运用Python语言和系统编程语言开发的软件结构，并在此基础上开发了一个类似Logo语言的交互式绘图应用。     

电脑编程技巧与维护

极畅销Python入门网书全新修订版 全面详尽，10个项目引人人胜 本书是经典的Python入门教程．层次鲜明，结构严谨，内容翔实，包括Python程序设计的方方面面。本书首先从Python的安装开始．随后介绍Python的基础知识和基本概念．包括列表、元组、字符串、字典以及各种语句。然后循序渐进地介绍一些相对高级的主题，包括抽象、     

《Python语言入门》

Python是一门解释性的、面向对象的、动态语义特征的高层语言。它的高层次的内建数据结构，以及动态类型和动态绑定，这一切使得它非常适合于快速应用开发。Python的简单而易于阅读的语法强调了可读性，因此降低了程序维护的费用。Python支持模块和包，并鼓励程序模块化和代码重用。Python的解释器和标准扩展库的源码和二进制格式在各个主要平台上都可以免费得到．而旦可以免费分发。     

使用Jython快速开发Web应用

Jython是Python编程语言结合Java平台的一种开源执行。程序员可以把Python源代码编译成Java的字节码，并在Java虚拟机上运行此代码。本文通过实例，介绍了Java和Python语言的结合——Jython的应用，并一定程度上讨论了Jython的优点和广阔的应用前景。     

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     

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.     

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。