Under stochastic demand in the multi-stage SCM in a JIT environment, the probability of generating a function of the stationary distributions of the backlogged demand was extended. The batch size of WIPs has a great ...

This paper is an e ort to evolve multivariate variable control charts in a fuzzy environment where each observation in each sample is assumed to be a canonical fuzzy number. To do this, a likelihood ratio test should be ...

Asthma is a chronic lung disorder of which the number of su erers estimated to be between 1.4-27.1% of the population in di erent areas of the world. Results of various studies show that asthma is usually under-diagnosed, ...

In this paper, a control method based on binomial distribution is proposed in which, by analyzing the cumulated data for a uni-variate quality characteristic, the possible mean shift is detected. In this method, the ...

This paper presents a new cluster validity index for finding a suitable number of fuzzy clusters with crisp and fuzzy data. The new index, called the ECAS-index, contains exponential compactness and separation measures. ...

Acceptance of sampling plans and trade credit has become increasingly common in today's business. These two issues should be considered simultaneously when determining an ordering decision. This paper uses EOQ to model ...