This paper focuses on the flow shop sequence dependent group scheduling (FSDGS) problem with minimisation of total completion time as the criterion (Fm|f<SUB align="right"><SMALL>mls</SMALL></SUB>, prmu, S<SUB align="right"><SMALL>plk</SMALL></SUB>|ΣC<SUB align="right"><SMALL>J</SMALL></SUB>). The research problem is formulated in form of two different mixed integer linear programming (MILP) models. Comparing...</small></sub></small></sub></small></sub>

Purpose – This paper aims to deal with the construction of seasonal price indices for the housing market, based on Rosen's hedonic equations and using spatial econometric autoregression (SAR) techniques. Design/methodology/approach – More precisely, the hedonic equations are estimated using...

Modelling droplet movement on leaf surfaces is an important component in understanding how water, pesticide or nutrient is absorbed through the leaf surface. A simple mathematical model is proposed in this paper for generating a realistic, or natural looking trajectory of a water droplet...

Product design teams often aim to streamline product structures by standardising products' components and their features in order to reduce operations cost and improve productivity. We examine the notion of standardisation of components in product design by formulating a component selection...

There is no evidence that various proposed technological barriers have been effective in stopping music piracy. Different studies have proposed either anti-piracy or pro-piracy ways to solve the music industry's problems, but piracy still exists. In this paper, we build a mathematical model of a...

In this paper, a case study accomplished for the production planning of a German steel producer is presented. This includes the description of a lot-sizing problem and a related simple mathematical model formulated in order to meet the requirements for the mid- to long-term planning of the steel...

The planning of purchasing and production lot-size for multi-item multi-period multi-workstation capacitated production (MLCLSP-M) is discussed. Since the model is a NP-hard problem, this research proposes a heuristic method (A-LS), which decomposes the model into two sub-problems and...