Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Abstract: “Active flux” is an alternative unitary concept for the control of practically all ac drives. As aligned to rotor d-axis (for synchronous and flux-modulation machines) and to rotor flux axis ...

Abstract: With the fast development of advanced communication systems, wideband low-noise amplifiers (LNAs) have become more and more critical as they determine the overall performance of the ...

A thriving manufacturing sector is vital to the nation’s economic health and global security, yet few companies possess the research and development (R&D) capacity essential to staying competitive.

This price reflects trading activity during the overnight session on the Blue Ocean ATS, available 8 PM to 4 AM ET, Sunday through Thursday, when regular markets are closed. Chart does not reflect ...

Advanced practice nurses (APNs) can diagnose patients and may prescribe medication. There are four types of APNs: nurse practitioners (NPs), clinical nurse specialists (CNSs), certified nurse-midwives ...