for evaluation of efficiency and yield per surface unit with using the 56 sugar beet producer countries data in year 2005 an econometric model based on cols method has presented. with this model maximum sugar beet production efficiencies considering the harvested area and annual rainfall measure and level of mechanization has been determined. in total iran with production efficiency 0.43 is in ...

in this paper, productivity of and demand for water throughout eqlid’s sugar beet growers in 1385 were investigated. to address the objective 100 growers were selected using two-stage cluster sampling, then required dataset was obtained by interviewing and completing questionnaire. in order to study factors affecting sugar beet production, cobb-douglas production function was applied. based on ...

This paper presents both the results of a study existing heat exchanger network (HEN) an industrial unit for ethylbenzene (EB) production by alkylation benzene with ethylene, and analysis four different HEN retrofit projects carried out using process integration methods. The project modernization was classical methods Pinch analysis. For this case, value ΔTmin is determined, which limited techn...

The problem of finding optimal production and inventory policies is crucial for companies the food industry, especially those processing multiple products. Since are required to adopt most efficient solutions prosper, operation at these conditions can have an extensive impact on profit, resource allocation product quality. We address policy in a multiproduct bakery unit two contexts: (i) determ...