in recent years according to the growing companies andproducts supplied, and competition between them has intensified. productsand diversity, one of the main concerns of commercial institutions.therefore, selecting the media to introduce and is important therelationship between customers’ products. given the multiplicity of mediain promoting and marketing the products, they are the optimalchoic...

This paper presents a fuzzy goal programming (GP) procedure for solving a multiobjective linear plus linear fractional programming problem. In the proposed approach GP model for achievement of the highest membership value of each of fuzzy goal defined for the linear plus linear fractional objectives is formulated. In the solution process, the method of variable change on the underand overdeviat...

Truck and shovel operations comprise approximately 60% of the total operating costs in open pit mines. In order to increase productivity and reduce the cost of mining operations, it is essential to manage the equipment used with high efficiency. In this work, the chance-constrained goal programing (CCGP) model presented by Michalakopoulos and Panagiotou is developed to determine an optimal truc...

the conceptualization of total economic value (tev) associated with protected natural areasnecessarily requires an analytical reordering that ensures a simultaneous incorporation of natural, social andeconomic components. based on this purpose, the present paper uses a multi-criteria decision modeling forthe economic valuation of environmental goods and services (egs) in the viñales national pa...

In recent years according to the growing companies andproducts supplied, and competition between them has intensified. Productsand diversity, one of the main concerns of commercial institutions.Therefore, selecting the media to introduce and is important therelationship between customers’ products. Given the multiplicity of mediain promoting and marketing the products, they are the optimalchoic...

In this article, a fuzzy goal programming (GP) and method of approximation is presented for the solution of a multiobjective linear plus linear fractional programming problem. In the proposed approach, membership functions are defined for each fuzzy goal and then a method of variable change on the underand overdeviational variables of the membership functions associated with the fuzzy goals of ...

using the mathematic techniques such as fuzzy approach has useful outcomes for production planning in different sources. in this paper lgp1 was used to model the objectives such as: avoidance of shortage or surplus of demand, access to maximum of income, using the normal capacity of production and organizing the inventory of warehouse, within the framework of goal constraints like balancing be...

In this paper, we integrate goal programming (GP), Taylor Series, Kuhn-Tucker conditions and Penalty Function approaches to solve linear fractional bi-level programming (LFBLP)problems. As we know, the Taylor Series is having the property of transforming fractional functions to a polynomial. In the present article by Taylor Series we obtain polynomial objective functions which are equivalent...