In this paper we present the MEMPHIS middleware framework for the integration of CAD geometries and assemblies with derived Virtual Reality (VR) models and its specific meta data and attributes. The goal of this work ...In this paper we present the MEMPHIS middleware framework for the integration of CAD geometries and assemblies with derived Virtual Reality (VR) models and its specific meta data and attributes. The goal of this work is to connect real time VR applications, especially for the Design Review, with enterprise software storing and managing CAD models (Product Data Man- agement—PDM). The preparation of VR models requires expert knowledge, is time consuming, and includes selection of required CAD data, tessellation, healing of unwanted gaps, applying materials and textures, and special surface and light effects. During the Design Review process, decisions are made concerning the choice of materials and surface forms. While materials can be switched directly on the VR model, the modification of part geometries must be made on the CAD model. Our system synchronizes modi- fications of the original CAD geometries and of attributes that are relevant for the realistic rendering using the PLM Services standard. Thus, repeated work for the VR preparation can be avoided.展开更多
目的梳理虚拟现实(virtual reality,VR)技术用于脑卒中的发展历程,识别研究热点,探索该领域发展潜力,为研究人员及临床工作者的工作提供依据和指导。方法检索建库至2022年11月Web of Science数据库核心合集,获得虚拟现实在脑卒中领域研...目的梳理虚拟现实(virtual reality,VR)技术用于脑卒中的发展历程,识别研究热点,探索该领域发展潜力,为研究人员及临床工作者的工作提供依据和指导。方法检索建库至2022年11月Web of Science数据库核心合集,获得虚拟现实在脑卒中领域研究的相关文献,利用CiteSpace软件R6.1.R6版本分析了该领域出版物的外部特征,包括作者和机构的国家/地区分布、基金支持,以及共被引文献和关键词的变化。结果研究发现文献发表量和被引频次逐年递增,近5年的研究热点是VR联合机器人辅助脑卒中运动康复,而在非运动康复中的效果证据不足。结论虚拟现实技术在脑卒中运动康复的研究热度逐年上升并持续至今。未来VR技术的临床推广还需要进一步拓宽应用场景,多方面满足患者的功能康复需求。展开更多
随着现代信息技术的迅猛发展,虚拟现实技术的发展前景更为广阔,技术日趋成熟,各行各业对虚拟现实技术的需求越来越强。其中,虚拟现实技术在广告设计领域得到广泛应用,效果显著,对广告业的创新发展很有帮助。因此,文章概述了虚拟现实技术...随着现代信息技术的迅猛发展,虚拟现实技术的发展前景更为广阔,技术日趋成熟,各行各业对虚拟现实技术的需求越来越强。其中,虚拟现实技术在广告设计领域得到广泛应用,效果显著,对广告业的创新发展很有帮助。因此,文章概述了虚拟现实技术,具体分析虚拟现实技术在广告设计中的应用优势、具体表现、现存问题,并论述了虚拟广告虚拟现实(Virtual Reality,VR)-产品数据管理演化系统(Product Data Evolvement System,PDES)的优化设计,旨在为广告设计中虚拟现实技术的应用和发展提供借鉴。展开更多
通过优化作者服务,树立期刊品牌形象,提升期刊的学术影响力,推动学术期刊高质量发展。文章以Journal of Systematics and Evolution为研究案例,梳理分析了期刊在优化作者服务方面所作的探索,并总结了三个行之有效的方法:加强投稿审稿系...通过优化作者服务,树立期刊品牌形象,提升期刊的学术影响力,推动学术期刊高质量发展。文章以Journal of Systematics and Evolution为研究案例,梳理分析了期刊在优化作者服务方面所作的探索,并总结了三个行之有效的方法:加强投稿审稿系统和审稿人团队的建设,优化作者投稿体验;积极探索开放科学模式,促进科研成果无障碍传播;多途径为作者提供资金支持。以期为我国学术期刊高质量发展提供借鉴。展开更多
To help determine in what ways virtual reality(VR)technologies may benefit reservoir engineering workflows,we conducted a usability study on a prototype VR tool for performing reservoir model analysis tasks.By leverag...To help determine in what ways virtual reality(VR)technologies may benefit reservoir engineering workflows,we conducted a usability study on a prototype VR tool for performing reservoir model analysis tasks.By leveraging the strengths of VR technologies,this tool’s aim is to help advance reservoir analysis workflows beyond conventional methods by improving how one understands,analyzes,and interacts with reservoir model visualizations.To evaluate our tool’s VR approach to this,the study presented herein was conducted with reservoir engineering experts who used the VR tool to perform three common reservoir model analysis tasks:the spatial filtering of model cells using movable planes,the cross-comparison of multiple models,and well path planning.Our study found that accomplishing these tasks with the VR tool was generally regarded as easier,quicker,more effective,and more intuitive than traditional model analysis software while maintaining a feeling of low task workload on average.Overall,participants provided positive feedback regarding their experience with using VR to perform reservoir engineering work tasks,and in general,it was found to improve multi-model cross-analysis and rough object manipulation in 3D.This indicates the potential for VR to be better than conventional means for some work tasks and participants also expressed they could see it best utilized as an addition to current software in their reservoir model analysis workflows.There were,however,some concerns voiced when considering the full adoption of VR into their work that would be best first addressed before this took place.展开更多
基金Project supported by the Korean Ministry of Information and Communication (MIC)
文摘In this paper we present the MEMPHIS middleware framework for the integration of CAD geometries and assemblies with derived Virtual Reality (VR) models and its specific meta data and attributes. The goal of this work is to connect real time VR applications, especially for the Design Review, with enterprise software storing and managing CAD models (Product Data Man- agement—PDM). The preparation of VR models requires expert knowledge, is time consuming, and includes selection of required CAD data, tessellation, healing of unwanted gaps, applying materials and textures, and special surface and light effects. During the Design Review process, decisions are made concerning the choice of materials and surface forms. While materials can be switched directly on the VR model, the modification of part geometries must be made on the CAD model. Our system synchronizes modi- fications of the original CAD geometries and of attributes that are relevant for the realistic rendering using the PLM Services standard. Thus, repeated work for the VR preparation can be avoided.
文摘目的梳理虚拟现实(virtual reality,VR)技术用于脑卒中的发展历程,识别研究热点,探索该领域发展潜力,为研究人员及临床工作者的工作提供依据和指导。方法检索建库至2022年11月Web of Science数据库核心合集,获得虚拟现实在脑卒中领域研究的相关文献,利用CiteSpace软件R6.1.R6版本分析了该领域出版物的外部特征,包括作者和机构的国家/地区分布、基金支持,以及共被引文献和关键词的变化。结果研究发现文献发表量和被引频次逐年递增,近5年的研究热点是VR联合机器人辅助脑卒中运动康复,而在非运动康复中的效果证据不足。结论虚拟现实技术在脑卒中运动康复的研究热度逐年上升并持续至今。未来VR技术的临床推广还需要进一步拓宽应用场景,多方面满足患者的功能康复需求。
文摘随着现代信息技术的迅猛发展,虚拟现实技术的发展前景更为广阔,技术日趋成熟,各行各业对虚拟现实技术的需求越来越强。其中,虚拟现实技术在广告设计领域得到广泛应用,效果显著,对广告业的创新发展很有帮助。因此,文章概述了虚拟现实技术,具体分析虚拟现实技术在广告设计中的应用优势、具体表现、现存问题,并论述了虚拟广告虚拟现实(Virtual Reality,VR)-产品数据管理演化系统(Product Data Evolvement System,PDES)的优化设计,旨在为广告设计中虚拟现实技术的应用和发展提供借鉴。
文摘通过优化作者服务,树立期刊品牌形象,提升期刊的学术影响力,推动学术期刊高质量发展。文章以Journal of Systematics and Evolution为研究案例,梳理分析了期刊在优化作者服务方面所作的探索,并总结了三个行之有效的方法:加强投稿审稿系统和审稿人团队的建设,优化作者投稿体验;积极探索开放科学模式,促进科研成果无障碍传播;多途径为作者提供资金支持。以期为我国学术期刊高质量发展提供借鉴。
文摘To help determine in what ways virtual reality(VR)technologies may benefit reservoir engineering workflows,we conducted a usability study on a prototype VR tool for performing reservoir model analysis tasks.By leveraging the strengths of VR technologies,this tool’s aim is to help advance reservoir analysis workflows beyond conventional methods by improving how one understands,analyzes,and interacts with reservoir model visualizations.To evaluate our tool’s VR approach to this,the study presented herein was conducted with reservoir engineering experts who used the VR tool to perform three common reservoir model analysis tasks:the spatial filtering of model cells using movable planes,the cross-comparison of multiple models,and well path planning.Our study found that accomplishing these tasks with the VR tool was generally regarded as easier,quicker,more effective,and more intuitive than traditional model analysis software while maintaining a feeling of low task workload on average.Overall,participants provided positive feedback regarding their experience with using VR to perform reservoir engineering work tasks,and in general,it was found to improve multi-model cross-analysis and rough object manipulation in 3D.This indicates the potential for VR to be better than conventional means for some work tasks and participants also expressed they could see it best utilized as an addition to current software in their reservoir model analysis workflows.There were,however,some concerns voiced when considering the full adoption of VR into their work that would be best first addressed before this took place.
