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球幕动画电影渲染管理系统设计研究
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作者 韩叙 席萌 宋宇莹 《现代电影技术》 2023年第5期4-10,共7页
球幕动画电影后期制作流程复杂,如果使用传统的渲染农场软件完成,执行效率不高。为了解决此问题,文中分析了球幕动画电影的制作工作流程,利用渲染农场技术,基于Win-dows HPC高性能计算包,设计并搭建了利用集群计算机进行分布式计算的渲... 球幕动画电影后期制作流程复杂,如果使用传统的渲染农场软件完成,执行效率不高。为了解决此问题,文中分析了球幕动画电影的制作工作流程,利用渲染农场技术,基于Win-dows HPC高性能计算包,设计并搭建了利用集群计算机进行分布式计算的渲染管理系统。该系统通过分层作业模板,实现了球幕动画电影工作流程的集成化,用户可以根据需要定制作业,通过并行计算完成所需的制作步骤。通过预渲染机制,合理分配计算资源并有效控制任务粒度大小,获得更高的计算效率。该系统已应用于北京天文馆,参与完成多部动画电影的制作工作,稳定性强,效果良好。该系统的实现,扩展了渲染集群的适用范围,简化了用户的手动操作,提高了球幕动画电影的制作效率,具有理论意义和应用价值。 展开更多
关键词 球幕动画电影 后期制作流程 渲染管理系统 Windows HPC 工作流作业
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Research on workflow meta model supporting activity based costing
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作者 周晓俊 曹建 《Journal of Southeast University(English Edition)》 EI CAS 2003年第4期324-330,共7页
Activity based costing (ABC) is a method which can solve many limitations of the traditional cost systems in manufacturing management. In this paper, we investigate how to integrate ABC with workflow technology, and ... Activity based costing (ABC) is a method which can solve many limitations of the traditional cost systems in manufacturing management. In this paper, we investigate how to integrate ABC with workflow technology, and build a workflow meta model supporting ABC. Firstly, the concept and concept model of activity based costing (ABC) are introduced. Next, the meta model of P -PROCE (Process, Product, Resource, Organization, and Cost & Evaluation) is presented. Then the cost meta model is defined by adding ABC to P -PROCE model. Object constraint language (OCL) is used to express meta model and constraints. Finally, we show an enterprise modeling and simulation tool based on the workflow meta model. We can systematically construct an enterprise model and easily and efficiently conduct simulation. Moreover it enables us to analyze and evaluate business processes and its costs. 展开更多
关键词 activity based costing WORKFLOW meta model object constraint language enterprise model
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Approach for workflow modeling using π-calculus 被引量:5
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作者 杨东 张申生 《Journal of Zhejiang University Science》 EI CSCD 2003年第6期643-650,共8页
As a variant of process algebra, π calculus can describe the interactions between evolving processes. By modeling activity as a process interacting with other processes through ports, this paper presents a new appro... As a variant of process algebra, π calculus can describe the interactions between evolving processes. By modeling activity as a process interacting with other processes through ports, this paper presents a new approach: representing workflow models using π calculus. As a result, the model can characterize the dynamic behaviors of the workflow process in terms of the LTS (Labeled Transition Semantics) semantics of π calculus. The main advantage of the workflow model's formal semantic is that it allows for verification of the model's properties, such as deadlock free and normal termination. Moreover, the equivalence of workflow models can be checked through weak bisimulation theorem in the π calculus, thus facilitating the optimization of business processes. 展开更多
关键词 Workflow modeling π calculus Business process modeling
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Coarse-grained Reuse of Workflows Based on Teamwork and Activity-Pattern-Oriented
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作者 Zhongqun Wang Qigong Chen Tao Liu Yong Wang Jun Li 《Journal of Systems Science and Information》 2007年第3期219-231,共13页
Flexibility plays an important part in the application of the workflow management system and has become one of the major research hotspots in this field recently. When adapting a workflow process definition to specifi... Flexibility plays an important part in the application of the workflow management system and has become one of the major research hotspots in this field recently. When adapting a workflow process definition to specific needs or changing the structure of the workflow process as a result of evolutionary change, coarse-grained reuse of work- flow is of significance to the reduction of the work effort, modeling system and enhancing the reliability of their work. Based on decomposition of workflow tasks and teamwork, this paper proposes an approach to describing interoperability behavior between roles in teamwork by using activity-pattern. In activity-pattern, abstract mechanisms of activity specialization and activity aggregation are presented, enabling reuse of workflow by means of reuse of interoperability behavior between roles. The experimental system shows that our approach presented is feasible. 展开更多
关键词 WORKFLOW flexibility TEAMWORK activity-pattern coarse-grained reuse
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