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东坪、牛东气田单井集输流程研究
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作者 骆涛 王骁冬 马杨洋 《青海石油》 2014年第1期111-114,共4页
本文通过对气田集输流程的分类对比,结合目前东坪、牛东气田所在地区地形地貌、气体流向和环境保护等方面选择了辐射式集输管网流程,采用井下节流工艺防止水合物的产生,降低了单井进站压力,减少运行成本,为后期气田开发提出了发展思路。
关键词 集输管网流程 防止水合物生成方法 管线选择
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蒸汽分级供应流程的特点
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作者 尚世海 《河南化工》 CAS 1997年第12期30-30,共1页
自备电厂、小锅炉、合成氨副产蒸汽联网外供蒸汽,受小锅炉压力的限制,不能满足用汽工段的要求,因此将蒸汽分为三个压力等级分别供给用汽工段,优化了蒸汽管网流程。
关键词 平衡供汽 蒸汽 分级供应 管网流程 合成氨
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Research on Petri Net Based Modeling and Analyzing Methods for Workflow Process 被引量:3
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作者 姜浩 董逸生 罗军舟 《Journal of Southeast University(English Edition)》 EI CAS 2000年第2期66-73,共8页
Workflow management is an important aspect in CSCW at present. The elementary knowledge of workflow process is introduced, the Petri nets based process modeling methodology and basic definitions are provided, and the ... Workflow management is an important aspect in CSCW at present. The elementary knowledge of workflow process is introduced, the Petri nets based process modeling methodology and basic definitions are provided, and the analysis and verification of structural and behavioral correctness of workflow process are discussed. Finally, the algorithm of verification of process definitions is proposed. 展开更多
关键词 workflow management CSCW Petri net process modeling
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Role-Based Modeling in Enterprise Dynamic Alliance 被引量:1
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作者 何文奇 李刚 +1 位作者 唐春华 王茜 《Journal of Southeast University(English Edition)》 EI CAS 2000年第2期58-65,共8页
In enterprise dynamic alliance towards agile manufacturing systems, any group needs to know which activities it must take part in, in what order those activities take place and how many other groups it must interact ... In enterprise dynamic alliance towards agile manufacturing systems, any group needs to know which activities it must take part in, in what order those activities take place and how many other groups it must interact with. The traditional procedural models can’t meet the requirement of the modeling for an enterprise dynamic alliance. In this paper, we use role based models for an enterprise modeling. Role based models group activities into roles, which describe the desired behavior of individual enterprise. We have developed a graphical modeling tool built on Web/DCOM platform according to Petri net theory and role based methodology. 展开更多
关键词 Petri net flow manager process manager role
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Information System Functions for SmartGrid Management
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作者 Mila llieva-Obretenova 《Sociology Study》 2016年第2期96-103,共8页
The violently penetration of renewables in power supply network leads to situations, by which the offer exceeds the demand. Therefore, it is necessary to include a system for processes' management. SmartGrid is a pla... The violently penetration of renewables in power supply network leads to situations, by which the offer exceeds the demand. Therefore, it is necessary to include a system for processes' management. SmartGrid is a platform over the power supply network. It is represented with its network and services, which also have to be managed. The paper aims to show the second stage of SmartGrid management modeling. It meets heterogeneous requirements of the actors--subscriber without photovoltaics, subscriber with photovoltaics, service provider, network operator, and network elements operator--to service and network management and is oriented to functional areas, covering the life cycle of power supply service: Design, Planning, Installation, Provision, Configuration, Maintenance, Performance, Accounting, Buying Up, Security and Subscriber Control. Functional models for existing networks--telecommunications--are used and they are adapted to power supply. The results are illustrated with three functional areas for service management: Accounting, Buying Up, and Performance. The synthesis of network management functions and network element management functions are similar. 展开更多
关键词 SmartGrid functional areas service management network management network element management
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