两种基于Unity3D的第三人称视角移动的实现方法与比较

在游戏开发中,游戏开发者越来越多地使用Unity3D游戏引擎进行游戏开发,在游戏开发中第三人称视角游戏是比较常见的游戏类型,而实现游戏角色的移动是第三人称视角游戏开发的中最基本要实现的功能,本文通过阐述两种第三人称视角的移动实现方法进行比较,为游戏开发者在开发第三人称游戏中的游戏角色移动功能开发的选择上提供选择依据.     

专利资助服务平台的设计与实现

对专利资助工作进行分析,设计开发一套基于网络的服务平台,实现专利资助的在线办理。系统采用Loushang框架技术,实现审核业务流的快速定义与开发,简化了系统开发的过程。     

基于Tilcon的交互式多页面的设计

在嵌入式应用开发过程中,有时需要友好的用户界面来完成一些人机交互操作。针对交互式多界面开发困难的难题,提出了基于Tilcons下进行交互式多页面开发的方法。并对Tilcon的结构、特点做了简要的描述,结合作者的实际工作经验,给出了使用Tilcon进行交互式多用户图形界面开发的具体实现,并对实现过程中所涉及到的技术细节进行了探讨和详细说明。以实际工作程序中部分重点函数说明了这种方法的可行性。     

基于SSHD整合架构的分类信息系统的设计与实现

分类信息系统是Web2.0时代的典型应用,文章以分类信息系统的开发为背景,对著名Ajax框架DWR与JavaEE轻量级开发框架SSH的集成进行深入探讨。系统采用了分层设计的思想,基于SSHD集成框架进行开发,以Spring为管理容器,Struts实现系统表现层,Hibernate实现数据访问,DWR实现Ajax效果,提升了系统用户的体验,提高了系统的可维护性和可扩展性。     

基于EZ_USB接口的快速USB驱动和用户程序开发

基于EZ_USB接口设计与实现Windows下USB驱动程序的快速开发,设备驱动和用户程序直接采用Visual Studio进行开发,介绍了从底层驱动开发到上层应用程序数据传输的整个软件系统的实现过程,具有快速、简单、有效的优点。     

基于C/S的项目开发进度辅助系统

为了实现对实施项目人员的机器进行监管以及更好的实现项目进度控制和项目沟通,大大提高团体或公司的开发效率,开发了基于C/S的项目开发进度辅助系统。对多线程编程技术、SOCKET网络通信技术、Processing可视化技术进行应用,并通过JAVA的设计和实现,本文就该系统的实现进行探讨和分析。     

某型导弹虚拟训练系统中虚拟人运动控制的实现

从工程应用的角度,对某型导弹虚拟操作训练系统和DI-GUY人体仿真软件进行了介绍,对视景仿真软件ve-ga进行了介绍,提出了基于vega软件和DI-GUY软件的适合于该系统的虚拟人运动控制的应用方法,并在VC++集成开发环境中进行开发,并给出了明确的实现思路和实现结果,对每种方法的优点与不足进行了详细的剖析,开发了针对空间球控制虚拟人运动的控制函数,实现了在多线程机制下通过线程间通讯来实现虚拟人控制函数的设计方法。     

基于delphi7语言的体育中心一卡通项目的系统设计

本文系统地研究一卡通系统软件的开发环境及各个模块功能的设计和实现,还对选用设备进行了简单的介绍。该体育中心一卡通系统开发主要包括前台应用程序的开发和后台数据库的建立,维护两个方面,前台应用程序是利用Borland公司开发的Delphi 7.0来实现的,后台数据库是利用Microsoft公司开发的Microsoft SQL2000来完成的。本系统主要针对射频卡进行识别,把卡内信息与数据库信息进行核对、增减。对顾客的办卡、充值、销费情况进行了统计,并对操作员工也进行了记载,还可以通过系统中心管理员对其他系统操作员权限进行设置。     

基于NDK的DSP网络接口移植开发设计

给出了一个基于TMS320DM6437 DSP的嵌入式网络实现方案,对该DSP的网络控制模块和NDK进行了深入的研究与分析,实现了NDK在不同外设的移植,并以SEED-DEC6437与PC之间网络通信为例,介绍了PC端Winsock与DSP的NDK开发流程.实验结果表明,使用移植过的NDK进行开发,可以有效地提高开发速度,减少开发时间.     

基于IS015765的电动汽车诊断系统设计

为了更加便捷地对电动汽车进行程序更新和故障诊断,开发了符合ISO15765的底层刷写协议栈;参考BOSCH ECU在线刷写流程拟定XC2000刷写流程,包括初始化、密钥认证、Flash分区擦除、Flash分区写入等过程;开发XC2000 Flash驱动,实现Flash按地址进行块擦除和写入,开发Bootloader,实现硬件资源初始化以及ISO15765协议栈的装载;开发了符合ISO15765的底层故障诊断协议栈,实现故障码读取、故障码清除、数据流读取、执行器测试等故障诊断功能;开发了电动汽车诊断上位机系统,并通过硬件在环仿真测试平台进行测试;测试结果表明,设计的电动汽车诊断系统利用CAN总线能够实现ECU在线刷写及故障诊断功能。     

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.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate