Neutral stability limits for wake flow behind a flat plate is studied using spectral method. First, Orr-Sommerfeld equation was changed to matrix form, covering the whole domain of solution. Next, each term of matrix was expanded using Chebyshev expansion series, a series very much equivalent to the Fourier cosine series. A group of functions and conditions are applied to start and end points i...

Mission To go through various modeling techniques and investigate their suitability for the task of creating and maintaining the fit between business processes (BP) and business process support (BPS) systems Approach We suggest splitting the investigation of suitability into two separate problem domains: 1. ADEQUACY, which concerns static properties of modeling techniques. Adequacy is important...

In this paper, we introduce and analyze robustness measures for the stability of discrete-time systems x(t+1) = Ax(t) under parameter perturbations of the form A ! A + BDC where B; C are given matrices. In particular we characterize the stability radius of the uncertain system x(t+1) = (A+BDC)x(t), D an unknown complex perturbation matrix, via an associated symplectic pencil and present an algo...

Stability and performance are two main issues in motion of bipeds. To ensure stability of motion, a biped needs to follow specific pattern to comply with a stability criterion such as zero moment point. However, there are infinity many patterns of motion which ensure stability, so one might think of achieving better performance by choosing proper parameters of motion. Step length and step perio...

The hydro turbine dynamics have a considerable influence on the dynamic stability of power system. In the study of dynamic stability, the system is modeled by the linear differential equations (small  signal analysis). Small signal stability of power systems is needed in all conditions and only is dependent on the conditions of power system performance before commotion occurrence. This paper pr...