background and purpose: the performance of full-scale moving bed biofilm reactor (mbbr) was evaluated as an alternative for upgrading of kish island mirmohana wastewater treatment plant. in this study activated sludge process upgrade to mbbr process and different operating parameters were compared. materials and methods: effect of upgrading on different parameters such as organic loading rate (...

T past few years have seen increasing interest in taking the notion of customer lifetime value (CLV) and extending it to value a customer base (with subsequent links to corporate valuation). The application of standard textbook discussions of CLV leads to calculations based on a single retention rate. However, at the cohort level, retention rates typically increase over time. It has been sugges...

The main purpose of this study is to evaluate the effect of staffs' customer orientation on customer satisfaction, commitment and retention. For this aim, the model of customer orientation of service staff, offered by Thurau was combined with customer orientation model of Donavan and Hoctt and a new model was devised for Mellat Banks of North West of Iran. The trend of this research is applied,...