Khilare S.K.,Rbnb College |
Shirke D.T.,Shivaji University
International Journal of Advanced Manufacturing Technology | Year: 2015
In this article, we proposed m-of-m control chart for fraction nonconforming to increase sensitivity of the standard p-chart. The m-of-m control chart for fraction nonconforming is described, and the 3-of-3 control chart is discussed in detail as an illustration of the m-of-m control chart. The performance of proposed control charts is measured in terms of average run length, standard deviation of run length and quartiles under zero-state and steady-state modes. The Markov chain approach is used to compute average run length, standard deviation of run length and quartiles. Comparison study revealed that the performance proposed m-of-m control chart with m = 2, 3 is significantly better than the standard p-chart. Average run length values of the proposed control charts are at least 15 % less than that of the standard p-chart values for small to moderate shifts. Standard deviation of run length values of the proposed control charts is also at least 18 % less than the standard p-chart. An example is given to illustrate an application of procedures discussed. © 2015, Springer-Verlag London.
Patil D.D.,Rbnb College |
Wadhava G.C.,Rbnb College |
Deshmukh A.K.,Rbnb College
Asian Journal of Chemistry | Year: 2012
A rapid and facile one pot synthesis of nitrile has been carried out in high yields from the corresponding aldehydes and hydroxylamine hydrochloride in the presence of anhydrous ferrous sulphate and DMF under reflux condition.