Abstract: Since the 1950s, lead zirconate-titanate (PZT) has been the dominant transduction material utilized in power ultrasonics, while lead-free piezoceramics have been largely neglected due to ...

Non-destructive testing allows engineers to evaluate the integrity of structures such as pipelines, tanks, bridges, and machinery without dismantling them. Conventional approaches rely on loudspeakers ...

#idea #Howtomake #Tutorial #LanAnhHandmade #Copperwire It takes less than 5 minutes, you can complete a star pendant with an incredibly supper simple way. You can use any wire you have. Large diameter ...

#idea #DIY #guide #LanAnhHandmade #jewelry The Sun is a symbol of light, life and warmth. Do you want a dazzling sun pendant ? Let's see how to make it. The sun drawings I found mostly have 8 large ...