基于Annotation的Spring事务应用设计

讲解Spring的事务实现技术,讨论Spring中事务的两种实现方式。通过同一个案例阐述了在Spring中对XML配置来实现事务和使用了Annotation实现事务,比较了两种实现方式的优缺点。在Spring使用Annotation实现事务作出总结,从而体现使用Annotation实现事务简洁性和良好的扩展性。     

基于Annotation的Spring事务应用设计

本文简要介绍Spring的事务实现技术,讨论了Spring中的事务的两种实现方式。通过同一个案例阐述了在Spring中通过xml配置来实现事务和使用了Annotation实现事务,比较了两种实现方式的优缺点。     

基于Annotation的Spring AOP系统设计

简要介绍AOP(Aspect Oriented Programming)技术和Annotation技术,讨论了Spring中的AOP的两种实现.通过同一个案例阐述了在Spring中通过XML配置来实现AOP和使用了Annotation在Spring中实现AOP,比较了两种实现方式的优缺点.对在Spring使用Annotation实现AOP作了总结,从而体现了Annotation在设计系统时其简洁性和良好的扩展性.     

Spring框架事务处理技术研究

Spring是JEE开发的重要应用程序框架。本文介绍Spring事务处理的工作原理,描述如何使用Spring的事务处理功能实现企业应用程序的事务处理,介绍XML配置文件的关键配置部分,讨论Spring的事务回滚和事务传播功能。     

用Annotation简化Java程序的开发

简要介绍了Annotation技术本身的实现原理，并通过具体实例阐述了如何在软件开发中使用Annotation技术来简化Java程序开发的复杂性，提高程序的可读性和易用性。同时归纳了Annotation技术与XML技术各自的优缺点及适用范围。     

Spring 3.x的事务处理机制的研究比较

Spring提供了多样化的事务编程支持,包括编程式事务和声明式事务。针对JDBC的事务处理对各类实现方式进行了介绍,并对实现效率进行了比较。当事务处理量少时,可以考虑用基于JDBC模板的编程式事务,当事务涉及量大时建议用基于@Transactional注解的声明式事务。     

论spring的零配置与XML配置

从多方面比较了Spring框架的XML配置和零配置方式的好处与不足,总结在实际开发中应如何灵活使用两种配置方式,以提高项目开发的效率.首先分别介绍了Spring框架的XML配置和零配置,其次举例说明了如何通过XML配置和零配置实现Spring的依赖注入功能,然后从Spring框架的骨骼架构和设计理念方面分析了XML配置相对零配置的优势.实践结果表明,在实际应用的开发期间应采用零配置方式,而在开发后期,项目功能完成时,应将零配置转换为XML配置,禁用零配置,从而显著提高项目开发的效率.     

Spring框架在数据持久层的应用研究

Spring是一个解决了许多在J2EE开发中常见问题的强大框架.文中介绍了Spring的核心思想--控制反转的概念,然后介绍了Spring框架的核心组件BeanFactory.最后,通过介绍Spring对JDBC的封装及其对事务的管理,展示了Spring在数据持久层的应用.     

基于决策树的网络通信机制研究

采用Spring、Hibernate、Webwork做统一的底层技术框架实现,提供统一的对象持久化处理,通过简单配置就可以实现对象的增、删、修改与分页查询操作,并提供一致的缓存实现、JNDI数据源、Web服务支持与事务配置方式。决策树通信机制界面库建立在Ext2.0 Widget库上的,通过模板引擎对Ext进行了Tag封装。     

Spring在实现MVC构架中的应用

Spring框架是一种在J2EE的基础上构建起来的一个轻量级的框架实现。叙述了基于MVC模式的Spring框架的应用,讲解了在Spring框架中各个模块的划分和功能,阐述了各个模块的实现逻辑,特别针对MVC模式中的控制器、模型和视图三个方面进行了详细的分析,从而说明了该框架的特点和优势。文中还通过对于该框架中一个典型的页面处理流程进行了分析和解释,阐明了将Spring框架用于Web应用的实现方式,并展望了Spring框架与其他框架集合的运用前景。     

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。