Abstract: When microbubble contrast agents are excited at low frequencies (less than 5 MHz), they resonate and produce higher-order harmonics due to their nonlinear behavior. We propose a novel scheme ...
Space on MSN
Java In Zero-G - How The Space Coffee Cup Works
Astronauts on the International Space Station have a zero-g cup for their java. Credit: NASA Johnson Space Center ...
Abstract: Parallel transmission (pTX) techniques are required to tackle a number of challenges, e.g., the inhomogeneous distribution of the transmit field and elevated specific absorption rate (SAR), ...
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