近年来,多模态语篇分析已成为了语言学研究的热点。演讲视频是典型的动态多模态语篇。文章运用Norris提出的多模态互动分析理论,采用“模态密度前景−背景连续统一体(modal density foreground-background continuum)”的分析框架,以ELA...近年来,多模态语篇分析已成为了语言学研究的热点。演讲视频是典型的动态多模态语篇。文章运用Norris提出的多模态互动分析理论,采用“模态密度前景−背景连续统一体(modal density foreground-background continuum)”的分析框架,以ELAN多模态分析软件作为模态标注工具,结合Norris提出的交流模态,对一则TED教育类动态多模态演讲视频中各交流模态在构建演讲信息中所起的作用以及这些模态之间的互动机制进行分析。研究发现在演讲视频的问题导入、问题提出、问题分析和问题解决这四个部分中各模态使用的强度和密度存在差异,言语交流模态与其他交流模态之间呈现强化、互补和并列关系从而共同构建多模态互动意义。展开更多
In this paper, we develop a macro model for traffic flow with consideration of static bottleneck to explore the impacts of static bottleneck on traffic flow. The analytical and numerical results show that the proposed...In this paper, we develop a macro model for traffic flow with consideration of static bottleneck to explore the impacts of static bottleneck on traffic flow. The analytical and numerical results show that the proposed model can qualitatively describe the equilibrium flux, uniform flow and small perturbation under the action of a static bottleneck.展开更多
文摘近年来,多模态语篇分析已成为了语言学研究的热点。演讲视频是典型的动态多模态语篇。文章运用Norris提出的多模态互动分析理论,采用“模态密度前景−背景连续统一体(modal density foreground-background continuum)”的分析框架,以ELAN多模态分析软件作为模态标注工具,结合Norris提出的交流模态,对一则TED教育类动态多模态演讲视频中各交流模态在构建演讲信息中所起的作用以及这些模态之间的互动机制进行分析。研究发现在演讲视频的问题导入、问题提出、问题分析和问题解决这四个部分中各模态使用的强度和密度存在差异,言语交流模态与其他交流模态之间呈现强化、互补和并列关系从而共同构建多模态互动意义。
基金Supported by the Program for the New Century Excellent Talents in University under Grant No.NCET-08-0038the National Natural Science Foundation of China under Grant No.70971007the WA Centre of Excellence in Industrial Optimization
文摘In this paper, we develop a macro model for traffic flow with consideration of static bottleneck to explore the impacts of static bottleneck on traffic flow. The analytical and numerical results show that the proposed model can qualitatively describe the equilibrium flux, uniform flow and small perturbation under the action of a static bottleneck.
