基于Hibernate的网格Portal的研究与设计

对Hibernate技术和网格Portal进行了详细介绍,并研究了利用Hibernate进行网格Portal设计的相关技术.通过在Portal的开发中引入Hibernate技术,方便了软件开发中对于数据库的操作;并给出了在GridSphere环境下使用Hibernate技术开发网格Portal的具体步骤.通过利用Hibernate技术进行实际教育资源网格Portal的开发,充分表明Hibernate技术的使用大大提高了软件项目的开发效率.     

基于Hibernate开发与数据库无关的系统

对Hibernate进行了简单介绍,分析了使用Hibernate实现与数据库无关的原理,并就如何使用Hibernate进行开发给出实例。     

基于Hibernate的数据持久层设计解决方案

本文在对目前持久层主流解决方案进行了介绍的基础上,重点分析了使用Hibernate开发数据持久层的原理和优势,也指出了Hibernate开发数据持久层还存在的不足,并就如何使用Hibernate进行开发给出实例。     

基于Struts＋Hibemate技术的网上选课系统设计与实现

本文介绍了Struts和Hibernate的机制,提出了一种基于Struts和Hibernate的J2EE应用开发策略,设计并实现了基于Struts＋Hibernate技术的网上选课系统。     

基于Hibemate的数据持久层设计解决方案

本文在对目前持久层主流解决方案进行了介绍的基础上，重点分析了使用Hibernate开发数据持久层的原理和优势，也指出了Hibernate开发数据持久层还存在的不足。并就如何使用Hibernate进行开发给出实例。     

基于Struts+Hibernate技术的网上选课系统设计与实现

本文介绍了Struts和Hibernate的机制,提出了一种基于Struts和Hibernate的J2EE应用开发策略,设计并实现了基于Struts＋Hibernate技术的网上选课系统。     

基于Ext+Spring+Hibernate的Web系统开发架构的研究与应用

介绍了当前开源框架Spring、Hibernate和新型Ext开源框架,并针对新一代Web应用程序开发的问题,采取基于Ext＋Spring＋Hibernate的Web系统开发架构设计开发。该架构具有高效复用快速特点。本文还举例阐述了如何利用该架构进行Web应用程序开发。     

基于Hibernate的JAVA对象持久化技术

Hibernate是一个可实现对象/关系映射的开源框架。分析了Hibernate的基本原理和特点,通过实例介绍了Hibernate框架应用开发的过程和方法。结果表明,利用Hibernate对象持久化服务,可以有效地进行数据库数据到业务对象的O/R映射,简化数据库操作,降低开发难度,提高开发效率。     

基于Struts和Hibernate的学生管理信息系统的研究与设计

为提高学生管理工作的效率和水平,对现有的MVC开发模式进行了研究,分析了Struts和Hibernate框架,根据学生管理工作的特点,设计出了系统的功能模块,确立了开发结构,提出了一个基于Struts和Hibernate的设计方案,并开发出了学生管理信息系统。     

基于Spring+Hibernate框架的Web应用系统的研究

介绍了Spring和Hibernate框架的原理和特点,以一个实例阐述了如何整合Spring和Hibernate框架并应用到实际的Web应用系统开发中。在J2EE技术的发展历程中,涌现出许多优秀的开发框架,这些框架在解决实际问题中都发挥了巨大作用。Spring和Hibernate是当今最为流行的两种J2EE开源框架。     

G.723.1语音编码算法的DSP实现

提出了在TMS320C5416 DSP硬件开发平台上实时实现G.723.1的解决方案。根据G.723.1标准实时实现的要求对程序进行了优化,最终在TMS320C5416 DSP上实时实现了该标准。语音质量良好,达到了通信质量的要求。     

Die Integration von Online-CICS-Anwendungen in E-Business-Lösungen

In this article, different fundamental strategies for integrating CICS applications into e-business applications are presented and their constraints and advantages are explained in some detail. The possible solutions discussed here comprise the implementation of a standard product (e. g. CTG), the integration by using XML wrapping methods (XWRAP) which implies a medium implementation effort, as well as a reengineering concept (XCDS) with an implementation effort ranging from medium to high. The main advantage of the CTG solution is that the host applications hardly need to be modified and, hence, this solution can be used immediately. However, owing to some system related restrictions this solution is mainly suited for application systems used internally within companies. The XWRAP solution offers XML access to a limited number of e-business applications but there are some restrictions due to the compatibility to the BMS format. Hence, this solution is mainly suited for application systems in maintenance without major future development. The main benefit of the XCDS solution is that the resulting application systems are well-structured and, thus, maintenance activities are facilitated. However, the implementation effort is rather high. Therefore, this solution is mainly suited for application systems which are subject of future development and enhancements and, at the same time, need to be integrated into e-business solutions with external access.     

Bridging the requirements–implementation modeling gap with object–process methodology

A model-based system development cycle involves two semantically distinct aspects: the requirements specification and the implementation model. Due to the conceptual and semantic differences between these two major system lifecycle stages, the transition from requirements to implementation is inherently a noncoherent process. Consequently, the system requirements are not faithfully transformed into the working system. This paper introduces an effective solution via an Integrated Modeling Paradigm (IMP) that combines the requirements and implementation domain models into a unified system model that continuously represents the system as it evolves. The IMP was implemented in an Object–Process Methodology (OPM) development environment. This implementation reinforces OPM with the capability to bridge the significant conceptual gap that lies right at the heart of the development process. A user survey has shown that this OPM-based solution is easy to use and can indeed help bridge the information gap, yielding a better match between the required and implemented systems than the currently accepted practice.     

移动数据库的同步管理技术的研究

文中结合在实验室自行开发的移动数据库原型SwiftDB，介绍了移动数据库系统的发展现状，提出了基于两级复制模型的同步解决方案双向复制，并根据不同应用环境采用不同方法加以实现，在维护数据一致性的同时也提高了系统的性能。     

Parallel genetic algorithms: a survey and problem state of the art

In relation with development of computer capabilities and the appearance of multicore processors, parallel computing made it possible to reduce the time for solution of optimization problems. At present of interest are methods of parallel computing for genetic algorithms using the evolutionary model of development in which the main component is the population of species (set of alternative solutions to the problem). In this case, the algorithm efficiency increases due to parallel development of several populations. The survey of basic parallelization strategies and the most interesting models of their implementation are presented. Theoretical ideas on improvement of existing parallelization mechanisms for genetic algorithms are described. A modified model of parallel genetic algorithm is developed. Since genetic algorithms are used for solution of optimization problems, the proposed model was studied for the problem of optimization of a multicriteria function. The algorithm capabilities of getting out of local optima and the influence of algorithm parameters on the deep extremum search dynamics were studied. The conclusion on efficiency of application of dynamic connections of processes, rather than static connections, is made. New mechanisms for implementation and analysis of efficiency of dynamic connections for distributed computing in genetic algorithms are necessary.     

基于轻量级J2EE的加油站卡系统的设计与实现

为了有效构建一套加油站卡系统,在探讨了问题域及不同实现框架优缺点的基础上,给出了一个基于轻量级J2EE框架的实现方案.此方案根据卡系统自身的需求和特点,在开发过程中充分利用轻量级J2EE先进的体系架构,并详细阐述如何通过使用Spring、Hibernate、Acegi等多个成熟开源框架来简化系统开发的复杂性,同时提高开发效率.系统的运行结果表明此设计方案的合理性和有效性,也为其它类似应用提供了一个通用的解决方案.     

SPARC V8处理器断点调试的设计与实现研究

以一款 SPARC V8处理器为例,分析了处理器分级存储系统中 Cache 和 MMU 对断点调试实现的影响,提出有效的解决办法,并成功应用到该处理器的调试工具中。该方法也适用于其他具有Cache 和 MMU 的处理器断点调试设计。     

Use of mini-computers for large scale structural analysis programs

One of the major new developments in computing technology is the mini-computer. This paper presents the results of the implementation of the ANSYS computer program (a large-scale structural analysis system) on a mini-computer.The implementation of ANSYS started with an evaluation of the existing and proposed mini-computer hardware and software systems, relative to a set of criteria derived from the structural software requirements.After benchmarking several systems to compare the claimed performances with the actual performance, the system which most nearly met the requirements for the ANSYS program was selected and ordered.The configuration chosen for this development machine is illustrated and variations from the development configuration which would be desirable for a production environment are discussed.The results of the implementation of ANSYS on the selected mini-computer system are presented. Included in the presentation are run times, run costs, accuracy of results and computer storage requirements.Finally, this paper discusses the future directions which will be pursued in this development effort. Included are discussions of the interface between the mini-computer and a larger central computer, the limits on problem size imposed by core memory and solution time and suggestions for the improvement of the performance of structural problems in a mini-computer environment.     

基于JAVAME和蓝牙技术的遥控器的设计与实现

在此系统中主要以JSR．82蓝牙可选包为开发环境,手机遥控PC功能是此课题的主要应用。在以J2ME平台和Jaw蓝牙无线API的基础上,设计并实现了一个通过手机控制PC控制器。为手机游戏的研究与开发提出一种新的解决思路。     

A new implementation of the algorithm of adaptive construction of hierarchical neural network classifiers

The article presents development of the algorithm of adaptive construction of hierarchical neural network classifiers based on automatic modification of the desired output of perceptrons with a small number of neurons in the single hidden layer. The conducted testing of the new program implementation of this approach demonstrated that the considered algorithm was more computationally efficient and provided higher quality of solution of multiple classification problems in comparison with standard multi-layer perceptron.