U.S. stocks fell after President Donald Trump threatened 50% tariffs on the European Union that could begin in a little more than a week. The S&P 500 lost 0.7% Friday ...

Gene duplication and amplification (GDA) generates genomic variability that is then available for genetic adaptation to altered growth conditions or stresses. GDA constitutes an important adaptive ...

Here’s how it works. If you want a hi-fi system but are daunted by the prospect of multiple speaker and amplifier boxes, you may want to consider active speakers – i.e. speakers with amplification ...

Abstract: In this paper, efficiency-limiting physical constraint effects imposed on the knee voltage, along with a variation of the optimum load resistance, are investigated for highly efficient Class ...

A Kustom Koach trailer, proudly made in Canada. — Photo courtesy Keith Powell The “K” mystery has been solved. Several months ago we posted a travel trailer with a big “K” on the front and no other ...

Abstract: This paper presents the first study of the relation between the IMD asymmetries, often observed in almost all power amplifiers subject to a two-tone test, and the nonlinear characteristics ...

Edited by Joshua Combes, University of Colorado, Boulder, CO; received September 9, 2023; accepted February 10, 2024, by Editorial Board Member Bernard F. Schutz ...

State Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China ...

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