基于J2ME的手机软件开发(二)

举例介绍了主要的高层用户接口API以及MIDP的记录管理系统（RMS）．并给出了代码。     

J2ME手机日记本的设计原理与关键技术

J2ME手机通过记录管理系统RMS提供数据的持久存储。在介绍了RMS管理记录存储原理的基础上,分析了实现手机日记本的工作流程,并给出了具体的实现方法和关键代码。     

J2ME手机日记本的设计原理与关键技术

J2ME手机通过记录管理系统RMS提供数据的持久存储。在介绍了RMS管理记录存储原理的基础上,分析了实现手机日记本的工作流程,并给出了具体的实现方法和关键代码。     

基于J2ME技术的查询应用

本文介绍J2ME技术中的RMS（Record Management System）、一些MIDP高级UI的使用以及文件流操作,比较了J2ME技术中查询应用的关键技术,并简析了一个手机号码归属地查询的实例,还介绍了开发过程中的一些心得和体会。     

基于J2ME技术的查询应用

本文介绍J2ME技术中的RMS(Record Management System)、一些MIDP高级UI的使用以及文件流操作,比较了J2ME技术中查询应用的关键技术,并简析了一个手机号码归属地查询的实例,还介绍了开发过程中的一些心得和体会.     

基于STEP的RMS信息模型研究及实现

为了满足产品数字化协同研制模式对可靠性、维修性、保障性（RMS）数据共享和交换的要求，针对RMS工程的“全特性”、“全阶段”和“全系统”的特点，建立了基于产品模型数据交换标准（STEP）的RMS信息模型，并研究提出了该模型在产品数据管理系统（PDM）下的实现方法，最后给出了RMS模型及其实现方法在企业信息集成中的应用模式及案例验证。     

大型火力发电厂监控系统的研发与应用

介绍了采用FIX组态软件平台而研发的火力发电厂计算机监控系统。所研发的监控软件，不仅实现了发电生产过程信息的采集、处理和监控，而且提供了故障诊断与报警，自动生成生产报表，实现了监控和数据采集（SCADA）系统与发电厂管理系统的集成。此外，研究开发的事件顺序记录（SOE）系统能快速准确地判断跳合闸顺序，分析出事故发生的原因。该监控系统在清河发电厂的成功应用表明系统结构设计合理，功能完善，可靠性高。     

MIDP 2.0中MIDlet套件安装、升级和删除的设计与实现

简要介绍了Sun公司MIDP2．0规范中的应用程序管理系统，从实现的角度补充了规范中没有明确指定的细节。在详细讨论了MIDlet套件安装、升级和删除的流程之后，以此为基础设计了程序管理系统中MIDlet套件的安装系统的框架，包括安装、升级和删除功能。在实现上力求符合MIDP2．0规范要求、高效。     

MIDP类库的设计和实现原则

ORP（Open Runtime Platform）是一个高性能的MRTE（Managed Runtime Environment）软件开发环境,MIDP（Mobile Information Device Profile）是我们作为ORL（Open Runtime Library）的一部分在该环境中开发的类库。在开发该类库的时候要充分考虑类库的整体设计和性能。我们在编写的过程中,总结出了一些关于如何设计和实现有关MIDP类库的经验,并给出了具体实例来阐述其中需要注意的一些原则。     

基于J2ME的手机软件开发(一)

简要介绍了J2ME、有限连接设备配置（CLDC）和移动信息设备简表（MIDP）,举例介绍了主要的低层用户接口API．并给出了代码实现方法。     

基于J2ME技术的查询应用

介绍J2ME技术中的RMS(Record Management System)、一些MIDP高级UI的使用以及文件流操作,比较了J2ME技术中查询的关键技术,简析了一个手机号码归属地查询的实例.     

基于XML和J2ME无线联机定购系统的研究

随着电子商务的流行，开始出现了移动商务，在移动中处理商务成为现实。如何高效地实现移动商务，成为一个新的研究课题。本文研究了基于XML和J2ME的无线联机定购系统的实现，并且设计了一个飞机票定购系统。本系统使用J2ME平台的移动信息配置文件（MIDP）和第三方的XML解析器来实现，应用程序分为两个部分：客户端和服务器端。     

移动设备中基于MIDP 2.0的2D游戏的开发

随着移动计算的迅速发展,手机和个人数字助理等移动设备已成为程序员新的开发平台。特别是在这些平台上使用J2ME和MIDP进行游戏开发已越来越受到人们的关注。最新的MIDP2.0和游戏API的引入为程序员解决了以前在MIDP1.0中进行游戏开发时所遇到的各种问题。论文分析MIDP2.0游戏API的新特性,并结合一个实际的开发项目给出基于移动设备的2D游戏的设计方法。     

Investigating data preprocessing methods for circuit complexity models

Preprocessing the data is an important step while creating neural network (NN) applications because this step usually has a significant effect on the prediction performance of the model. This paper compares different data processing strategies for NNs for prediction of Boolean function complexity (BFC). We compare NNs’ predictive capabilities with (1) no preprocessing (2) scaling the values in different curves based on every curve’s own peak and then normalizing to [0, 1] range (3) applying z-score to values in all curves and then normalizing to [0, 1] range, and (4) logarithmically scaling all curves and then normalizing to [0, 1] range. The efficiency of these methods was measured by comparing RMS errors in NN-made BFC predictions for numerous ISCAS benchmark circuits. Logarithmic preprocessing method resulted in the best prediction statistics as compared to other techniques.     

Reconfiguration point decision method based on dynamic complexity for reconfigurable manufacturing system (RMS)

To address the problem of how to identify the best time to implement reconfiguration for the reconfigurable manufacturing system (RMS), a dynamic complexity-based RMS reconfiguration point decision method is proposed. This method first identifies factors that affect RMS dynamic complexity (including both positive and negative complexity) at the machine tool and manufacturing cell levels. Next, based on information entropy theory, a quantitative model for RMS dynamic complexity is created, which is solved via state probability analysis for processing capability and the processing function. This model is combined with cusp catastrophe theory to establish an RMS reconfiguration decision model. Both positive and negative complexity are control variables for cusp catastrophe. Cusp catastrophe’s state condition is used to identify RMS state catastrophe at the final stage of production. This catastrophe point is the RMS reconfiguration point. Finally, the case study result shows that this method can effectively identify the RMS state catastrophe moment so that system reconfiguration is implemented promptly to improve RMS’s responsiveness to the market.     

How users’ participation affects reputation management systems: The case of P2P networks

In this work human factor is explored by means of agent based simulation and analyzed in the framework of a reputation management system (RMS), within a peer-to-peer (P2P) network. Reputation is about evaluating an agent’s actions and other agents’ opinions about those actions, reporting on those actions and opinions, and reacting to that report, thus creating a feedback loop. This social mechanism has been successfully used to classify agents within normative systems. The systems rely on the feedbacks given by the members of the social network in which the RMS operates. Reputation can thus be seen as an endogenous and self produced indicator, created by the users for the users’ benefit. This implies that users’ participation and collaboration is a key factor for the effectiveness a RMS.     

典型交通场景下智能车的定位与协作

提出并设计了基于多智能体的多智能车协作系统平台,包括基于嵌入式多车协作系统的硬件、软件及通信协议,该系统可作为多车协作算法的仿真实验平台。针对典型城市交通场景,提出了基于拓扑结构的两层地图模型,并采用视觉与里程结合的方法实现智能车在地图中的准确定位。在此基础上,设计了基于冲突表的路口协调算法、车队跟随算法,并完成路口、车队、超车等协作任务,通过实验结果证明了多车协作系统定位与协作的可行性和可靠性。     

Maintaining traceability links during object‐oriented software evolution

This paper presents a method to build and maintain traceability links and properties of a set of object‐oriented software releases. The method recovers an ‘as is’ design from C++ software releases, compares recovered designs at the class interface level, and helps the user to deal with inconsistencies by pointing out regions of code where differences are concentrated. The comparison step exploits edit distance and a maximum match algorithm. The method has been experimented with on two freely available C++ systems. Results as well as examples of applications to the visualization of the traceability information and to the estimation of the size of changes during maintenance are reported in the paper. Copyright © 2001 John Wiley & Sons, Ltd.