TESTA , Alessandro

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This paper presents an innovative modeling framework able to support planning, management and optimization of waste collection operations in an urban context. A proprietary simulator composed by three functionality modules (Global Positioning System, Data Mining system, Simulator for routing and resource exploitation) was implemented by the...

Market liquidity is a very important topic for financial risk management. This paper proposed the use of an integrated model (Monte Carlo, System Dynamics and Discrete Event Simulation) in order to support energy management in a steel plant. After the introduction, which presents a literature review, we have analyzed the use of System Dynamics...

When dealing with the modeling and simulation of transportation and logistics problems, the Discrete Event Simulation (DES) is one of the most used techniques, especially when dealing with the operational context. Other authors have addressed the logistics context by using the System Dynamics (SD) simulation that works in the continuous time....

Modeling and simulation is a powerful tool able to address complex decision making process: it allows the responsible to infer the effect of a decision well in advance and to avoid excessive risky decisions. The authors in this papers proposed the application of M&S to both strategic and operative management in the steel manufacturing industry.

Simulation is the best tool used for any nontrivial, real world system and many simulation tools are today available for supporting complex system modeling. In general any simulation language or tool is suitable for any application however some approaches could provide easier and better results than others. This paper provides some practical...

Failure analysis through simulation is a useful practice to predict a system availability, maintenance times and costs over even long time periods. So far, computational tools for failure analysis have been designed mainly for electronic components. This paper presents a software tool aimed at carrying out the failure analysis of complex plants...

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This paper presents the analysis, development and testing of a Decision Support System (DSS) allowing planning, management and optimization of waste collection operations in an urban context. A proprietary simulator developed in Java™ and composed by four functionality modules (Global Positioning System, Data Mining system, Waste collection...

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Simulation is the best tool used for any non-trivial, real world system. For analysis of complex systems, simulation is often used prior to the operation of the real world system as a mediator for a dynamic situation. Therefore, simulation methodology has been recommended and chosen to analyze, for example, container terminal systems. This...

Steel industry today looks for important savings in order to keep its competitiveness. One of the most affecting factor is the cost of energy, especially for the electric arc furnace (EAF) process where the energy cost could raise up to 40% of the final gross price. Based on the opportunities offered from energy markets is possible to reduce...

The purpose of this study is undertake a review of the seaborne coal supply chains for two important Power Stations in the Mediterranean Sea. We are considered four different scenarios. An important aspect of this study has been the consultation with the coal supply chain participants, involving interviews, site visits and workshops, to share...

The purpose of this study is undertake a review of the seaborne coal supply chains for two important Power Stations in the Mediterranean Sea (associated at two important Companies). We have studied four scenarios. Each scenario has been developed in terms of: ocean freight assessment and preliminary operative costs estimation. The purpose of...

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This paper presents an integrated logistic study to estimate the fitness for purpose of a Supply Base during the development and exploitation of the XY gas field. The logistic study includes a dynamic modelling of the overall system (incoming logistic flow, base occupation and outgoing logistic flow) in order to properly evaluate possible...

This paper presents a logistic simulation study in order to evaluate technical feasibility and operative costs (demurrage hours) associated to several operating strategies of transshipments in remote sites in order to assure a certain regasification rate of LNG to the network. In particular two scenarios were evaluated (A and B) within which...