Archaeologists working in northern Mesopotamia say they have uncovered visual patterns that look a lot like structured ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. In treaty reinsurance, an insurer (the cedent) transfers the risks of a specific class of ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Dr. JeFreda R. Brown is a financial ...

No. 3 May, 2010 pp. 1401-2180 No. 2 March, 2010 pp. 619-1400 No. 1 January, 2010 pp. 1-618 ...

Abstract: This paper presents a current control technique for a single-phase grid-connected DC/AC inverter which is used in photovoltaic power conditioning system (PV PCS). A proportional-resonant (PR ...

Abstract: Resonant controllers are commonly used in parallel with proportional-integral controllers in the current control of multiphase machines and other three-phase drives where current harmonics ...