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2 Research in Logistics & Production

2 2014

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Models For Solving The Tariff Optimization Problem

Pytlak R., Stecz W.

Research in Logistics & Production

2014

Vol. 4, No. 2

119-133

We present the methods of telecommunication tariff optimization from a point of client’s view. A client which wants to minimize his monthly fees tries to choose a proper tariff model. In case of large companies these models are more complicated and the optimization models should be used. We describe a simple MIP models and their modifications solved with CLP solvers. All the examples were solved with ILOG and ECLiPSe MIP and CLP solvers.

Assesment Of Sustainability In Dismantling Station – Case Study

Kosacka M., Golińska P.

Research in Logistics & Production

2014

Vol. 4, No. 2

135--145

Sustainable resources utilization is very actual issue considered in three dimensions: economic, social and environmental. Products end-of-life management is a key element of sustainable development. Automotive industry is a big supplier of different kinds of waste. End-of-life vehicles are becoming problem in most of the Member Countries. Poland is a country with one of the oldest vehicles feet in EU. It results in a growing trend of the number of old and worn cars, which need to be dismantled and recovered. The objective of this paper is to present an assessment of sustainability in disassembly station. Authors present theoretical background of research, case study description and complex analyses of dismantling process in one of the biggest dismantling stations in Poland with application of following tools: VSM maps, diagram SIPOC and RPA method. The analysis allows to identify main problems which exist in this field and to propose some improvement measures in order to improve the sustainability of dismantling operations