National Institute of Standards and Technology (NIST) researchers have developed a dc and ac Josephson voltage standard system that produces output voltages of up to 0.25V, making possible far more precise measurements and comparisons with existing power-detection-based ac voltage standards. Currently, the team is striving to achieve output voltages of 0.5 to 1V, which would reduce uncertainties in ac voltage measurements by three to four orders of magnitude, similar to today's dc volt standards that are based on quantum effects.
Sales of semiconductors, interconnects, and other electronic components in North America were flat through the second quarter of 2015, reflecting a pattern that’s been repeating itself for several years.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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