(E)-1-(1,3-Benzodioxol-5-yl)-3-(3-bromophenyl)prop-2-en-1-one

In the title compound, C16H11BrO3, the molecules adopt an E configuration with respect to the C=C double bond of the propenone unit.The 13 non-H atoms of Bowling Balls the benzodioxole and propenone units are FIXED BLADE approximately coplanar (r.m.s.deviation = 0.027 Å) and the bromobenzene ring plane forms a dihedral angle of 10.8̳

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Prediction of remaining useful life time of aero engine based on the Wiener process of three-source uncertainty

Given the problem of three-sources uncertainty in aero engine degradation process and the assumption of normal distribution of measurement error in existing research, a Wiener process aero engine residual useful life time(RUL) prediction method with logistic distribution of Clasps measurement error was proposed.Firstly, the performance degradation

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