Because blasting is a quite efficient and economical excavation method, it has been widely applied to tunnel excavation especially in hard rock.However, this method is rarely used to the tunnel site cashel g2 soft saddle close to residential houses due to its environmental impact such as vibration and noise.Nowadays, the advanced electronic detonat
Background: Acne scarring presents a significant esthetic and psychological concern, commonly classified into atrophic and hypertrophic types.Effectively managing these lesions often involves the use of therapeutic strategies such as laser treatments, dermabrasion, and fillers.This study investigates the efficacy of 1550 nm erbium glass laser thera
Chatter is an obstacle for achieving high-quality machining process and high 15lb nitrous bottle production rate in industries.Chatter is an unstable self-exciting phenomenon that leads to tool wear, poor surface finish, and downgrade the milling operations.A novel active control strategy to attenuate the chatter vibration is proposed.PD/PID contro