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"Lead-free piezoceramic macro-fiber composite actuators toward active v" by Binquan Wang, Geng Huangfu et al.

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 superposition of a negative dc bias voltage to pursue higher output performance but risks depolarization, lead-free MFCA can achieve larger displacement by superimposing only a positive bias voltage. This device exhibits excellent reliability, maintaining a stable output over 105 electrical cycles. Additionally, a “back-to-back” coupled MFCA has been developed to regulate bidirectional displacement, ....

Active Vibration Control , Ead Free Piezoceramic Actuator , Acro Fiber Composite ,

2021 Acura TLX Type S First Drive: A long-awaited return to form

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 one that they had to live up to Type S enthusiasts’ expectations and had to challenge the leaders, referring to the likes of Audi S4, Mercedes-AMG C43, Genesis G70, and the BMW M340i xDrive. In my opinion, I highly respect the team for not only setting high benchmarks but also delivering the goods, making the Type S a true sports sedan that performs and handles like a sports car. ....

United States , Italy General , Laguna Seca , Weathertech Raceway Laguna Seca , Variable Cylinder Management , Mitsubishi Evo , Active Vibration Control , Super Handling All Wheel Drive , Circuit De La Sarthe , Big Willow , Vehicle Stability Assist , Agile Handling Assist , Apple Carplay , Android Auto , Acura Watch , Pirellip Zero , ஒன்றுபட்டது மாநிலங்களில் , இத்தாலி ஜநரல் , லகுனா செகா , வானிலை ரேஸ்வே லகுனா செகா , மாறி சிலிண்டர் மேலாண்மை , மிட்‌ஸ்யூபீஶி எவோ , செயலில் அதிர்வு கட்டுப்பாடு , அருமை கையாளுதல் அனைத்தும் சக்கரம் இயக்கி , சுற்று டி லா சார்த்தே , பெரியது வில்லோ ,