In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec han...In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec hanical system design and analysis process. This system is based on an emerg ing web-based Content Management System (CMS) called eXtended Object Oriented P ortal System (XOOPS). Due to the Open Source Status of the XOOPS CMS, programs d eveloped with this framework can be further customized to satisfy the demands of the user. To introduce the use of this framework, this paper exams three differ ent types of mechanical design and analysis problems. First, a repetitive design consideration and calculation process is transferred into WMADF programs to gai n efficiency for wired collaborative team. Second, the considered product solid model is created directly through the use of XOOPS program and Microsoft Compone nt Object Model (COM) instances. To the end of the paper, an example linked with ANSYS is used to indicate the possible application of this framework.展开更多
Software rejuvenation is a recently proposed practive fault-tolerance approach to counteract software-aging phenomenon. Compared with clusters of a flat architecture, all the nodes share the same functions. The applic...Software rejuvenation is a recently proposed practive fault-tolerance approach to counteract software-aging phenomenon. Compared with clusters of a flat architecture, all the nodes share the same functions. The application of software rejuvenation on dispatcher-based web server farms is discussed, which employ rejuvenation both on the dispatcher and the worker pool. Stochastic reward net (SRN)models for time-based and prediction-based rejuvenation policies are constructed respectively and solved by stochastic Petri net package (SPNP). Numerical results show that appropriate rejuvenation strategies on the dispatcher and the worker pool could significantly reduce the expected downtime cost of the whole web server farm.展开更多
目的:以定量方式分析全球网络新闻语料库(NOW)中与中医药相关的英语新闻文本,探讨中医药文化媒介形象。方法:检索NOW中与中医药相关的英语新闻文本,以字符串查询方式进行检索,分别设定“traditional Chinese medicine(中医)”“acupunct...目的:以定量方式分析全球网络新闻语料库(NOW)中与中医药相关的英语新闻文本,探讨中医药文化媒介形象。方法:检索NOW中与中医药相关的英语新闻文本,以字符串查询方式进行检索,分别设定“traditional Chinese medicine(中医)”“acupuncture(针灸)”“Chinese herbal(中药)”为检索词,设定时间范围为2020年1月1日至2024年4月18日,分别获得含有上述3组检索词的文本,分别为2 535、6 157、327条。通过特征词提取分析文本关键词及其分布特征;对语料的情感向度和主客观度进行分析,初步了解近年来中医药英语新闻传播现状;用潜在狄利克雷分布(LDA)模型抽取新闻主题。结果:词频分析中health(健康)、pain(疼痛)等高频词反映了海内外民众对中医药基本诉求;文本分析的整体情感倾向值为0.099、主客观性倾向值为0.413,考虑医疗类新闻的特殊性,整体呈现积极且客观的传播态势;LDA主题建模获得“卫生服务相关”“体验描述相关”“病症与具体诊疗相关”3个主题,其中卫生服务相关话题在国际新闻中占有相当大的比例,个人体验和具体诊疗相关话题作为中医文化的核心传播点,通过真实故事和医疗实践,具有一定的发展潜力。结论:中医药文化在国际媒体上展现出较为积极客观的媒介形象,中医药卫生服务相关话题在国际新闻传播中占据重要地位,其影响力随时间推移逐渐增强;体验描述和病症治疗作为中医药文化传播的2个关键方面,分别通过个人体验和具体诊疗实践,展现出持续的发展潜力和传播热点。展开更多
讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括...讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括输出数据和图片的HTML文件.利用M atlab W eb Server环境实现了远程控制实验室的控制效果仿真,并以二维图形的输出形式显示仿真结果,为网上控制实验室的建立提供了控制参数选择以及试验结果验证参照.本远程数据处理方法可推广应用到不同的远程数据处理领域,具有很高的推广价值.展开更多
文摘In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec hanical system design and analysis process. This system is based on an emerg ing web-based Content Management System (CMS) called eXtended Object Oriented P ortal System (XOOPS). Due to the Open Source Status of the XOOPS CMS, programs d eveloped with this framework can be further customized to satisfy the demands of the user. To introduce the use of this framework, this paper exams three differ ent types of mechanical design and analysis problems. First, a repetitive design consideration and calculation process is transferred into WMADF programs to gai n efficiency for wired collaborative team. Second, the considered product solid model is created directly through the use of XOOPS program and Microsoft Compone nt Object Model (COM) instances. To the end of the paper, an example linked with ANSYS is used to indicate the possible application of this framework.
文摘Software rejuvenation is a recently proposed practive fault-tolerance approach to counteract software-aging phenomenon. Compared with clusters of a flat architecture, all the nodes share the same functions. The application of software rejuvenation on dispatcher-based web server farms is discussed, which employ rejuvenation both on the dispatcher and the worker pool. Stochastic reward net (SRN)models for time-based and prediction-based rejuvenation policies are constructed respectively and solved by stochastic Petri net package (SPNP). Numerical results show that appropriate rejuvenation strategies on the dispatcher and the worker pool could significantly reduce the expected downtime cost of the whole web server farm.
文摘基于HTML的Web应用程序有着重要的缺点---人-机界面不够友好,特别是对于数据量大的生产、业务数据。提出了一种利用Office ActiveX控件来提高Web应用程序人-机界面友好性的方法,使用这些控件可以大大减轻软件开发人员的工作量、增强系统功能、提高人-机界面的友好性;同时也提出了一种用Microsoft Office Web Components（OWC）控件创建基于模板的Web应用程序的方法。
文摘讨论了基于M atlab W eb Server的M atlab网络应用开发原理,介绍了M atlab W eb程序处理的一般流程和相关配置文件的详细配置方法,并给出M atlab W eb开发中的两个关键问题:通过输入模块从HTML页面获取输入参数和通过输出模块生成包括输出数据和图片的HTML文件.利用M atlab W eb Server环境实现了远程控制实验室的控制效果仿真,并以二维图形的输出形式显示仿真结果,为网上控制实验室的建立提供了控制参数选择以及试验结果验证参照.本远程数据处理方法可推广应用到不同的远程数据处理领域,具有很高的推广价值.
