in this paper, by numerical simulation of gas flow, effects of divergence angles on the amplification factor, side force and thrust vector magnitude of a moveable nozzle with supersonic split line have been investigated. the study is conducted for constant exit to throat area ratio and the location of the split line is also constant. the finite volume method with second order upwind scheme for ...

The present research is concerned with the determination of ductility, over-strength and response modification factors of coupled steel shear wall frames. Three structural models with various numbers of stories, bay width and coupling beam height were analyzed using static pushover and incremental nonlinear dynamic analyses. The ductility, over-strength and response modification factors for the...

We present three algorithms for supervisor synthesis in discrete-event systems. In all cases the desired language is not both controllable and observable. To allow supervisor synthesis, we approximate the desired language with languages that are controllable and observable. These languages are contained in the desired language, and are ‘large’ in some sense. We note that there exists algorithms...