Fresnel圆屏衍射的计算机模拟演示

基于Huygens-Fresnel衍射积分和Babinet原理,利用Hankel变换算法及球面波因子处理方法,在普通PC上使用MFC编程较好地实现了Fresnel圆屏衍射的计算机模拟演示。演示中,Fresnel圆屏衍射的光强剖面分布、衍射图样和中心光强分布分别随光的传输距离和波长及圆屏半径的改变而变化,光的传输距离和波长及圆屏半径由三个滚动条分别控制。     

育人为本实践为基创新为魂

我校信息科学与技术实验教学中心于2007年经江苏省教育厅批准成为省级示范实验教学中心。建设的目标在于提高学生的实践能力和创新能力,服务于学校开展的卓越工程师人才培养计划。在讨论了建设思路的基础上,提出了体系化实践平台的构建思路,并就实验教学方法的改进以及实验教师队伍的建设等方面作了探讨。     

物理学实验教学示范中心的建设与实践

介绍了对管理机制、教学体系、师资队伍、硬件和软件建设等方面进行的改革与探索,阐述了物理实验教学示范中心的建设理念以及中心的建设特色,并通过实践,提高了实验教学质量,培养了优秀的人才。     

地方农林院校物理实验教学示范中心建设实践

从转变实验教学观念、建立科学实验教学体系、规范实验室管理、改善实验环境等方面介绍了浙江农林大学省级物理实验教学示范中心建设的实践.实验教学示范中心的建设过程贯穿“高等教育生态化”理念,构建并实施了以“三层四模”为核心、“两个平台”为栽体的生态化实验教学新体系;建设了由网络教学资源平台和网络管理服务平台组成的物理实验网络信息教学平台;创建了实验中心内部环境以及内外部环境关系生态化的实验教学环境.初步实践表明,示范中心的建设提高了实验教学效益,“拉动”了实验教学水平的提高,实现了教与学的双赢.     

Cultural Trends of Audience Online Interaction with Vocal Talent Shows: A Comparative Study between China and the US

This study examined cultural reflections online of audience comments on social network sites regarding vocal talent shows in China and the United States. The study applied dimensions of cross culture to investigate audience comments on the official social networking sites of The Voice of China and The Voice. Findings reflect Hofstede’s dimensions as applied to social media and illustrate how individuals alter their “local” cultural norms in the new media environment. The study specifically enhances the exploration of cultural manifestations in cyberspace, which fewer cross-cultural studies have researched.     

虚拟现实技术在高校教学中的应用研究

阐述了VR技术在高校教学中的优势,重点介绍了5种主流网络VR技术的性能特点和应用状况,同时论述了VR技术与教学相互促进和推动的发展趋势。     

Beyond virtual museums: Experiencing immersive virtual reality in real museums

Contemporary museums are much more than places devoted to the placement and the exhibition of collections and artworks; indeed, they are nowadays considered as a privileged means for communication and play a central role in making culture accessible to the mass audience. One of the keys to approach the general public is the use of new technologies and novel interaction paradigms. These means, which bring with them an undeniable appeal, allow curators to modulate the cultural proposal by structuring different courses for different user profiles. Immersive Virtual reality (VR) is probably one of the most appealing and potentially effective technologies to serve this purpose; nevertheless, it is still quite uncommon to find immersive installations in museums. Starting from our 10 years’ experience in this topic, and following an in-depth survey about these technologies and their use in cultural contexts, we propose a classification of VR installations, specifically oriented to cultural heritage applications, based on their features in terms of interaction and immersion. On the basis of this classification, aiming to provide a tool for framing VR systems which would hopefully suggest indications related to costs, usability and quality of the sensorial experience, we analyze a series of live examples of which we point out strengths and weak points. We then summarize the current state and the very next future, identifying the major issues that prevent these technologies from being actually widespread, and outline proposals for a more pervasive and effective use of Immersive VR for cultural purposes.     

基于虚拟现实技术的救助船对外消防培训仿真系统

针对救助船消防训练中存在的海况复杂,对外消防炮射流受风影响大,往往无法准确控制其射向目标区域的问题,在理想状态下射流理论的基础上探究风对射流轨迹的影响,建立自然风条件下射流轨迹的数学模型,模拟对外消防炮射流的运动情况。应用3ds Max构建船舶模型,用Unity3D构建救助船在面临大风浪、遇险船着火等状况时对外消防系统的工作场景,提出一种精确构建粒子系统轨迹的方法,使射流模型能精确体现在场景中。通过虚拟现实设备能实现救助船对外消防培训仿真系统的立体显示和人机交互,起到更好的虚拟仿真和培训效果。     

混合现实技术对学生学习绩效的影响研究——基于33项实验与准实验的元分析

混合现实(MR)作为虚拟现实(VR)和增强现实(AR)的高级发展阶段,以沉浸式、跨时空、强交互等特点在教育教学中得到广泛应用。但对国内外文献分析发现,学界对混合现实技术的教学应用效果仍有分歧,对学生学习绩效的影响研究存在较大差异。为探究混合现实技术对学生学习绩效的影响,研究采用元分析方法,对2010-2020年间国内外33项混合现实技术支持下的实验与准实验研究进行量化分析,其总样本量为1460,重点从学段、学科、实验周期和学习场所等调节变量进行深入探析。研究结果表明:混合现实技术对学生学习绩效具有积极的正向提升作用;同时,其应用效果受到学段、学科、实验周期和学习场所等调节变量的影响。依据元分析结论,研究对未来混合现实技术在教育教学中的应用提出了推进学段贯通式MR教学,加快MR与学科融合发展,整合碎片化MR教学资源等建议。     

基于VRML与Java的物理模型方法的设计

本文给出了一种基于VRML和Java的虚拟现实构建方法,采用VRML描述虚拟物体的几何特征。为提高虚拟环境的运行速度,本文提出并实现了一种proto原型的绘制加速方法。