Semi-solid materials undergo strain localization and shear band formation as a result of granular nature of semi-solid deformation. In the present study, to analyze the shear localization, a unified viscoplastic constitutive model was developed for the homogeneous flow. Then, a linearized analysis of the stability performed by examining the necessary condition for the perturbation growth. For t...

Received Dec 20, 2016 Revised May 12, 2017 Accepted Jun 6, 2017 Stability studies of multi machine system are a major concern to power system engineers due to the increasing complexity involved. This paper deals with the application of a nonlinear technique called Dynamic Inversion, to TCSC for the improvement of stability of multi-machine system. The transient stability studies for various cas...

We consider three steps numerical integrator which is derived by collocation and interpolation of power series approximation solution to generate a linear multistep method which serves as the corrector. The corrector is then implemented in block method. We then propose another numerical integrator which is implemented in block method to serve as a constant order predictor to the corrector. Basi...

Abstract: Dropsondes from the NOAA G-IV aircraft were used to examine the presence of low bulk Richardson number (RB) in tropical cyclones. At least one 400-m layer above z = 7.5 km exhibited RB < 1 in 96% of sondes, and RB ≤ 0.25 in 35% of sondes. The latter represent almost certain turbulence. Sondes from major Hurricane Ivan (2004) were examined in detail. Turbulent layers fell into three br...

Dropsondes from the NOAA G-IV aircraft were used to examine the presence of low bulk Richardson numbers RB in tropical cyclones. At least one 400-m layer above z 5 7.5 km exhibited RB , 1 in 96% of the sondes andRB# 0.25 in 35%of the sondes. The latter represent almost certain turbulence. Sondes frommajor Hurricane Ivan (2004) were examined in detail. Turbulent layers fell into three broad grou...