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Alternate approximation of concave cost functions for process design and supply chain optimization problems
This short note presents an alternate approximation of concave cost functions used to reﬂect economies of scale in process design and supply chain optimization problems. To approximate the original concave function, we ...
Clique partitioning with value-monotone submodular cost
We consider the problem of partitioning a graph into cliques of bounded cardinality. The goal is to find a partition that minimizes the sum of clique costs where the cost of a clique is given by a set function on the nodes. ...
Cost functions for transport firms
(Edward Elgar, 2011)
There are various components of the total costs of transport: (1) the costs of infrastructure; (2) costs incurred by transport operators; (3) costs borne directly by users (e.g., time and inconvenience costs); and (4) costs ...
The least energy and water cost condition for turbulent, homogeneous pipeline slurry transport
The efficient combined use of water and energy in long distance slurry pipelines is analyzed in light of the total cost function resulting from an energy and mass balance. Given a system throughput and a set of common ...
Thermoeconomic analysis of hydrogen incorporation in a biodiesel plant
The paper develops a methodology that uses the thermoeconomic functional diagram applied for allocating cost of products obtained by the plant and afterwards demonstrates how it is possible to calculate the marginal cost ...
Pricing with markups in industries with increasing marginal costs
We study a game that models a market in which heterogeneous producers of perfect substitutes make pricing decisions in a first stage, followed by consumers that select a producer that sells at lowest price. As opposed ...
Minimization of discontinuous cost functions by smoothing
(Kluwer Academic PublDordrechtHolanda, 2002)
Designing a modified Hopfield network to solve an Economic Dispatch problem with nonlinear cost function
(Institute of Electrical and Electronics Engineers (IEEE), 2002-01-01)
Economic Dispatch (ED) problems have recently been solved by artificial neural networks approaches. In most of these dispatch models, the cost function must be linear or quadratic. Therefore, functions that have several ...
Thermoeconomic analysis method for optimization of combined heat and power systems - part II
(Elsevier B.V., 2004-01-01)
In this paper, a thermoeconomic functional analysis method based on the Second Law of Thermodynamics and applied to analyze four cogeneration systems is presented. The objective of the developed technique is to minimize ...