Newly UL- and Semko-approved is the dc and ac single line Feedthru filters from Spectrum Control Inc. (www.spectrumcontrol.com). Rated at 10-300A and intended for 0-400 Hz applications, these filters have C and Pi configurations with the dc models coming with Class Y4 capacitors while the ac models offer Class Y2 or Class Y4 capacitors. In addition, the bolt-in style with D-shaped bushing make installation easy.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.