Graphical displays deserve to be a routine part of seasonal adjustment, and their routine use is now feasible because of the current revolution in computer graphical hardware and software. We present ...

IN company, I think, with other correspondents, I have misunderstood Mr. Larden's use of the words “analytical methods.” He alluded, it is true, to resolution and taking moments, but “analytical ...

Understanding and reducing noise from control valves is an important consideration for process facilities, especially those close to residential areas. After years of working with this issue, the ...

The graphical and Standard Methods for the determination of biochemical oxygen demand (BOD) were compared. Average means ± standard deviation of 228 ± 28 mg/L and 199 ± 25 mg/L for the Standard ...