Investigation of ultrasonic guided wave inspection on a wing spar structure by Nazeer, Nakash

“…A wave mode is chosen appropriately to carry out the wave propagation characteristics. The curvature effects are examined by comparing the group velocity, displacement, stress and strain distributions between a flat and curved plate for various curvature ratios. …”
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Design of a CMOS current-mode voltage reference with low PVT sensitivity by Lin, Youbo

“…This dissertation proposes a new PVT-Insensitive current-mode voltage reference utilizing second-order curvature-compensated technique. Implemented in TSMC-40nm process technology, the circuit has achieved a temperature coefficient of 18 ppm/◦C in the TT corner and Monte-Carlo T.C. of 27.33 ppm/◦C from −20 ◦C to 120 ◦C, demonstrating strong temperature insensitivity. …”
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