Micromechanical assessment of an internal stability criterion

An eigenvalue criterion for stability

We study the resolvent equation associated with a linear operator L arising from the linearized equation for perturbations of a steady Navier–Stokes flow U∗. We derive estimates which, together with a stability criterion from [33], show that the stability of U∗ (in the L–norm) depends only on the position of the eigenvalues of L, regardless the presence of the essential spectrum. Mathematics Su...

Quality Assessment on Satellite Images based on Internal Criterion Techniques

Segmentation of digital image plays a major role in computer visualization. It is used to extract meaningful objects that exist on the images. Region based clustering is done to extract objects based on the colors present in the satellite images. The principle of clustering is to identify the similar domains from a huge data set to produce an accurate representation of the image. In this paper,...

An improved criterion for Kapitza's pendulum stability

Nyquist Stability Criterion

A stability test for time invariant linear systems can also be derived in the frequency domain. It is known as Nyquist stability criterion. It is based on the complex analysis result known as Cauchy's principle of argument. Note that the system transfer function is a complex function. By applying Cauchy's principle of argument to the open-loop system transfer function, we will get information a...

Micromechanical Assessment of Chondrogenic Stem Cell Heterogeneity