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沿用出口导叶的大型轴流泵改造方案探讨 总被引:1,自引:0,他引:1
对大泵改造保留出口导叶的叶轮改型方案作了深入的探讨 .分析了不动导叶时泵改前后性能设计参数之间的变化关系 ,指出这种改型方案存在的局限性 ,提出了机组增容或导叶切割的辅助措施 . 相似文献
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VERTAF/Multi-Core: A SysML-Based Application Framework for Multi-Core Embedded Software Development 下载免费PDF全文
Multi-core processors are becoming prevalent rapidly in personal computing and embedded systems.Nevertheless,the programming environment for multi-core processor-based systems is still quite immature and lacks efficient tools.In this work,we present a new VERTAF/Multi-Core framework and show how software code can be automatically generated from SysML models of multi-core embedded systems.We illustrate how model-driven design based on SysML can be seamlessly integrated with Intel’s threading building blocks (TBB) and the quantum framework (QF) middleware.We use a digital video recording system to illustrate the benefits of the framework.Our experiments show how SysML/QF/TBB help in making multi-core embedded system programming model-driven,easy,and efficient. 相似文献
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