the stability analysis of islanded inverter-based microgrids (ibmgs) is increasingly an important and challenging topic due to the nonlinearity of ibmgs. in this paper, a new linear model for such microgrids as well as an iterative method to correct the linear model is proposed. using the linear model makes it easy to analyze the eigenvalues and stability of ibmgs due to the fact that it derive...

The stability analysis of islanded inverter-based microgrids (IBMGs) is increasingly an important and challenging topic due to the nonlinearity of IBMGs. In this paper, a new linear model for such microgrids as well as an iterative method to correct the linear model is proposed. Using the linear model makes it easy to analyze the eigenvalues and stability of IBMGs due to the fact that it derive...

We define a class of “algebraic” random matrices. These are random matrices for which the Stieltjes transform of the limiting eigenvalue distribution function is algebraic, i.e., it satisfies a (bivariate) polynomial equation. The Wigner and Wishart matrices whose limiting eigenvalue distributions are given by the semi-circle law and the Marčenko-Pastur law are special cases. Algebraicity of a ...

Improving the power stability of an interconnected Nigerian 330KV 48 bus system was developed using Genetic Eigenvalue Technique to mitigate challenges proper placement stabilizer due its highly dynamic and nonlinear nature. In order eliminate load losses, equipment malfunctioning, other quality issues, unnecessary tripping cascaded failures in network, stabilizers are installed improve stabili...

Among the eigenvalue problems of the Laplacian, the biharmonic operator eigenvalue problems are interesting projects because these problems root in physics and geometric analysis. The buckling problem is one of the most important problems in physics, and many studies have been done by the researchers about the solution and the estimate of its eigenvalue. In this paper, first, we obtain the evol...

What is the impact of calculator use on the acquisition of arithmetic facts? Some, but not all, prior research reports that mental practice promotes better subsequent performance than calculator practice (i.e., the generation effect). Is answer production faster and more accurate on a test after practice with versus without a calculator? If so, to what extent does mental practice promote retent...

This paper presents the Metric-Frequency Calculator (MF Calculator), an online application to analyze similarity. The MF Calculator implements the MF similarity algorithm developed by Sales and Wakker (2009) for the quantitative assessment of similarity in ill-structured data sets. It is widely applicable as it can be used when there is little prior control of the variables to be observed, with...

BACKGROUND Glycemic control is important to patients' outcomes. However, the process of maintaining glycemic control is risk laden and labor intensive for nurses. OBJECTIVES To examine the effects of using a computerized insulin dose calculator to facilitate management of glycemic control for critically ill cardiac patients. METHODS A prospective randomized controlled trial was conducted wi...

Compared with the conventional electronic computer, the Ternary Optical Computer (TOC) is the better idea for next generation computing tools because it possesses numerous data bits, enough intercom bandwidth, and inter controller made of electronic computer, but when designing optical calculators in TOC, there is much randomness that bring the manufacture of the optical calculators on lots of ...

PURPOSE To compare the astigmatic power of toric intraocular lenses (IOLs) obtained from the AcrySof, TECNIS, and iTrace toric calculator in patients with preoperative with-the-rule (WTR) or against-the-rule (ATR) corneal astigmatism. MATERIALS AND METHODS Fifty eyes with cataract and corneal astigmatism greater than 0.75 diopters were enrolled in each group (WTR and ATR). Keratometric values...