A disciplined diet and exercise regimen may seem like the key to a long life. Business Insider's interviews with centenarians revealed other important longevity factors. Staying engaged with life, ...

Abstract: Bolt connections are prone to loosening in harsh working environments. Ultrasonic guided waves can be used for online monitoring of bolt loosening. Accurately analyzing the propagation of ...

Abstract: Due to its good electrical contact properties, silver is frequently used as plating for conductors in bolted connections. During operation, adhesion between silver contact surfaces can occur ...