THE equation of the plot of thermogravimetric data is useful in kinetic analysis (1–12), but since it contains an exponential integral, many workers prefer approximate expressions. The best balance of ...

Abstract: This paper presents a novel systematic methodology to obtain new simple and tight approximations, lower bounds, and upper bounds for the Gaussian Q-function, and functions thereof, in the ...

Abstract: We revisit the Karagiannidis-Lioumpas (KL) approximation of the Q-function by optimizing its coefficients in terms of absolute error, relative error and ...