Abstract: This paper presents a programmable frequency scan algorithm based on harmonic balance. The core idea involves treating systems under perturbation as nonlinear time-periodic (NTP) systems.

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Bags onto the conveyor belt, electronics in a bin, and off you go through the TSA scanning process. Everyone knows their carry-on bags are screened at the airport through an X-ray device or 3-D ...

The original version of this story appeared in Quanta Magazine. If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle ...

ABSTRACT: Addressing the long-standing structural disconnection issues of “having towns without industries” and “having industries without towns” at the township level in China, and in the context of ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

Get ready for a faster, smarter way to shop. Derin Yilmaz began her editorial work as a culture and entertainment writer, reviewing films, music, and TV. Her passion for food media ignited when she ...