The main purpose of this paper is to analyze the robust stability for a fuzzy vehicle steering control system. In general, fuzzy control system is a nonlinear control system. Therefore, the fuzzy controller may be linearized by the use of describing function first. After then, parameter plane method is then applied to determine the conditions of robust stability when the system has perturbed or...

forming limit curves are used as a parameter in finite element analysis to control the material's level of formability. in this research, forming limit diagram (fld) of ss304l sheet was obtained by abaqusfinite element software. in practice, the experimental determination of a forming limit curve is a very time-consuming procedure which requires special and expensive equipment. forming limit di...

Combustion instabilities are a significant problem encountered in low NOx, premixed combustors used for ground based or aero-applications. Current capabilities to predict the conditions under which instabilities occur are immature, often resulting in the appearance of expensive and problematic instabilities late in the development stage of an engine. Consequently, there is significant interest ...

compost is a gradual process in nature by which organic materials are decomposed in the presence of air by microorganisms and fungi. the product is a valuable fertilizer that is used in different places even in home little gardens, so that it has signed as an unnoticed asset. with due attention to the importance of compost, its guidelines and standards should be evaluated. it is pointed and com...

The Betz theory expresses that no horizontal axis wind turbine can extract more than 16/27 (59.3%) of the kinetic energy of the wind. The factor 16/27 (0.593) is known as the Betz limit. Horizontal Axis wind turbine designers try to improve the power performance to reach the Betz limit. Modern operational wind turbines achieve at peak 75% to 80% of the Betz limit. In 1919, Albert Betz used an a...

In this paper, traffic flow is controlled using dynamic speed limits, obtained by Model Predictive Control (MPC). MPC is a model-based approach, where the states of the system, influenced by control actions, are predicted over a certain time span. The states of the system are the mean speeds and densities on the motorway. Traffic flow models typically use space mean speeds, while measurements o...