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Macro-fiber composite actuators (MFCAs) suffer from strict restrictions on the utilization of lead-containing precursors due to growing environmental concerns. To address this issue, a novel lead-free MFCA based on potassium sodium niobate piezoceramics has been developed using the dice & fill method. The MFCA demonstrates large electric field-induced displacement (31.4 μm over -500‒1 500 V at 0.5 Hz), excellent frequency stability, and a strong linear relationship between the induced displacement and the external voltage amplitude. Meanwhile, unlike lead-based MFCA that requires superp...

2021 Acura TLX Type S First Drive: A long-awaited return to form Vincent Nguyen - May 20, 2021, 8:00am CDT The 2021 Acura TLX Type S is a return to form for Honda’s premium brand. Long renowned for offering spirited performance alongside the Integra Type R, the Type S arguably couldn’t have returned at a better time. In a market where sedans comprise less than 38-percent of new premium vehicle sales, the TLX Type S is a compelling attempt to lure enthusiast drivers back from the domestic crutches of sport-utility vehicles and homogenous crossovers. Acura knew from day ...