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81.
82.
Compositional verification using assume-guarantee reasoning has recently seen an uprise due to the introduction of automatic techniques for learning assumptions. In this paper, we transfer this technique to a setting with CSP as modelling and property specification language, and present an approach to compositional traces refinement checking. The approach has been implemented using the CSP model checker FDR as teacher during learning. The implementation shows that the compositional approach can both drastically outperform as well as underperform FDR's performance, depending on the example at hand. 相似文献
83.
Verification techniques like SAT-based bounded model checking have been successfully applied to a variety of system models.
Applying bounded model checking to compositional process algebras is, however, a highly non-trivial task. One challenge is
that the number of system states for process algebra models is not statically known, whereas exploring the full state space
is computationally expensive. This paper presents a compositional encoding of hierarchical processes as SAT problems and then
applies state-of-the-art SAT solvers for bounded model checking. The encoding avoids exploring the full state space for complex
systems so as to deal with state space explosion. We developed an automated analyzer which combines complementing model checking
techniques (i.e., bounded model checking and explicit onthe-fly model checking) to validate system models against event-based
temporal properties. The experiment results show the analyzer handles large systems. 相似文献
84.
85.
W.F. Wu Y.H. Feng X.X. Zhang 《金属学报(英文版)》2006,19(4):244-250
A mathematical model has been built to numerically predict the thermal history of thin slab during CSP (compact strip process) rolling. To estimate the temperature distribution in the slab mare accurately, the mathematical model combines heat transfer in the slab, in the roll, and at the roll-slab interface during bite. The numerical results agree with on-site running data, which proves the reliabili~, of the mathematical model. The results show that roll chilling has a significant effect on the temperature distribution in the slab. 相似文献
86.
87.
ANALYSIS ON THE BEHAVIOR OF PRECIPITATES IN ULTRA-THIN HOT STRIP OF PLAIN LOW CARBON STEEL PRODUCED BY COMPACT STRIP PRODUCTION 总被引:7,自引:0,他引:7
H.Yu Y.L.Kang H.B.Dong D.L.Liu J.FuUniversity of Science Technology Beijing Beijing China Manuscript received October in revised form January 《金属学报(英文版)》2002,15(4):375-379
This paper investigated the mechanism of precipitation and its influence upon prop-erties of ultra-thin hot strips of low carbon steel produced by CSP techniques using experiment and thermodynamics theory. The experimental results show that there are lots of fine and dispersive precipitates in microstructures. By analysis, most of aluminum nitrides are in grains, while coexisted precipitates of MnS are along grain boundaries. Coexisted precipitates compose cation-vacancy type oxides such as Al2O3 in the core, while MnS is at the fringe of surface. The precipitation behavior of AlN and MnS in the hot strip is studied by thermodynamic calculation. At last, implica-tions between strengthening effect and techniques are analyzed using obtained solubility products. 相似文献
88.
89.
借助Gleeble-1500热模拟机,研究了Q235钢不同温度、不同变形量及不同变形速率等参数对变形抗力及组织的影响规律,为生产实践提供了参考。 相似文献
90.
介绍了包钢CSP厂通过成分调整和工艺优化,研究出适合冷轧生产的热轧低碳钢带生产工艺。IM时通过严格加热炉热工制度和换辊制度等,解决了CSP工艺生产的冷轧用低碳钢热带的表面质量问题,用其生产的冷带成形性能优良,可作为深冲、超深冲使用。 相似文献