Financial market data offer the exciting possibility of quantifying and understanding the physics of a complex dynamical system, and the hope that this line of thinking may give some insights into understanding collective human behavior. Various measures of stock market activity have been found to exhibit puzzling features that have recently attracted much research attention. These features inc...

background and objectives: social security organization (sso) is the second largest organization to the ministry of health and medical education (mohme) in providing health care services in iran. in recent years the gap between the sso’s resources and expenditures has shown an unprecedented growing trend due to the rapidly increasing demand. continuation of this trend may lead to financial imba...

the ultimate goal of power system operation and planning is to increase power system reliability which enforces interconnected operation of power system. as a result of power system interconnection, the inter-area oscillation under different disturbances may cause power system partial or total blackout. dc-segmentation of interconnected power systems is a solution in which the topology of the n...

We examine adaptive behavior in forming and changing utility regulatory systems. Systems with independent regulatory agencies dampen the effects of political and market power, and diminish information asymmetries, which improves sector performance. But creating or adapting the system triggers resistance from those who experience loss and at weakens regulatory effectiveness for some period of ti...

PRESENCE OF NONLINEAR DISTORTIONS J. Schoukens (*), R. Pintelon (*), T. Dobrowiecki(**) (*): Vrije Universiteit Brussel, dept. ELEC, Pleinlaan 2, B1050 Brussels, Belgium (**): Budapest University of Technology & Economics, Dept. MIS, H-1521 Budapest email: [email protected] Abstract: A criterion to verify experimentally the stability of a nonlinear system, captured in a feedback loop, i...