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: The choice of OFDM-based multi-carrier access techniques for LTE marked a fundamental and farsighted parting from preceding 3GPP networks. With OFDMA in the downlink and SC-FDMA in the ...

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 ...

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Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

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 ...

Black Friday is back, and with it comes huge savings on some of the market’s most popular gaming and tech products. We’ll be covering all the best deals in more details over in our deals hub, but if ...

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 ...

Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills ...

Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills ...