A novel UV-curable prepolymer neopentyl glycol diglycidyl ether diacrylate(NPGGEA)was synthesized by using neopentyl glycol diglycidyl ether(NPGGE)and acrylic a
In this letter, we present a novel approach of valve stiction detection using wavelet tech-nology. A new non-invasive method is developed with the closed-loop n