This paper proposes an autonomous and economic droop control scheme for DC microgrid application. In this method, a cost-effective power sharing technique among various types of DG units is properly adopted. The droop settings are determined based on an algorithm to individually manage the power management without any complicated optimization methods commonly applied in the centralized control ...

In the $GW$ approximation, screened interaction $W$ is a nonlocal and dynamical potential that usually has complex frequency dependence. A full description of such dependence possible but often computationally demanding. For this reason, it still common practice to approximate $W(\ensuremath{\omega})$ using plasmon pole (PP) model. Such an approach, however, may deliver accuracy limited by its ...

The use of driving simulators in clinical trials is an interesting new development for testing the effects of drugs on impairment. Medscape interviewed Gary G. Kay, PhD, Associate Professor, Department of Neurology, Georgetown University School of Medicine and President, Cognitive Research Corporation, concerning his company's simulator -the CRC MiniSimTM – and how it is being used in clinical ...

This paper studies near-controllability of a class of discrete-time bilinear systems via a root locus approach. A necessary and sufficient criterion for the systems to be nearly controllable is given. In particular, by using the root locus approach, the control inputs which achieve the state transition for the nearly controllable systems can be computed. Furthermore, for the non-nearly controll...

This paper investigates the backorder rate inventory problem with defective units. In practice, the uncertainties of customer’s demand and backorder rate are inherent; hence, backorder rate and customer’s demand are not constant. In this study, we assume that the backorder rate is dependent on the amount of shortages and backorder price discounts, and the lead time demand follows a mixture of d...