CITE - Indexed Articles in Conferences
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Browsing CITE - Indexed Articles in Conferences by Author "João Claro"
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ItemAirport Competition and Aviation Network Evolution: an Exploratory Study on Continental Portugal( 2011) Jorge Pinho de Sousa ; Edgar Ramiro Jimenez ; João ClaroThis work describes an exploratory study to examine the evolution of the aviation network of three airports in continental Portugal - Lisbon, Faro and Porto - between 2001 and 2010. Our main goal is to evaluate the influence that decisions taken in a given airport have over decisions made in other airports in the network. Additionally, the research shows the relationship between airport competition and the changes occurring in the aviation network during the period of study. A conceptual framework on airport competition is also presented in order to define the ways in which airports compete and the relationships between them. We evaluate the degree of concentration of the aviation network using the Network Concentration Index (NC). Similarly, we analyse planning documents produced by the operator of the airports, to assess how aware they are on airport competition and on the strategies proposed for their airports.
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ItemAn introductory course on Decision Support Systems based on solving small management problems( 2012) Jorge Pinho de Sousa ; João ClaroIn this paper we describe our experience in teaching an introductory course on Decision Support Systems to students with quite heterogeneous backgrounds and often with a low quantitative education. This course was designed based on 'active learning' principles and is structured around the resolution of small management problems. Some years of experience have shown the potential of this approach, with an average excellent performance of the students.
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ItemAn introductory course on Decision Support Systems based on solving small management problems( 2012) João Claro ; Jorge Pinho de SousaIn this paper we describe our experience in teaching an introductory course on Decision Support Systems to students with quite heterogeneous backgrounds and often with a low quantitative education. This course was designed based on 'active learning' principles and is structured around the resolution of small management problems. Some years of experience have shown the potential of this approach, with an average excellent performance of the students.
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ItemPortfolios of Real Options and Capacity Expansion in Transmission Network Expansion Planning( 2012) Paulo J. Pereira ; Manuel Valentim Loureiro ; João Claro
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ItemRekindle dynamics: validating the pressure on wildland fire suppression resources and implications for fire management in Portugal.( 2012) João Claro ; Abilio Pereira Pacheco ; Tiago OliveiraRekindles can represent a high burden on wildland fire suppression resources, but despite the relevance of this phenomenon in Portugal, related research is still scarce. Seeking to contribute to address this gap, the purpose of this study was to organize and provide an overview of the problem of rekindles in Portugal, and to verify whether evidence exists that the high proportion of rekindles in Portugal is related to the double duty of Portuguese firefighters to perform initial attack and mop-up operations. Our study included informal meetings, formal recorded interviews, dispatch centre visits, actual rekindle observation, and an analysis of the National Forest Authority database. From the study of genealogies of rekindles, we concluded that 17.2% additional forest fires (rekindles in successive generations) had their origin in only 7.4% of primary fires. Through linear regression analysis, we found that their proportions increase in days with more occurrences, preliminarily sup
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ItemSimulation analysis of a wildfire suppression system( 2012) Tiago Oliveira ; Abilio Pereira Pacheco ; João ClaroRekindles and false alarms are unusually high in the Portuguese wildfire management system, representing a high burden on suppression resources in particular, and fire management resources in general. In 20,049 occurrences that the suppression system handled in the summer of 2010, 12.5% were false alarms and 15.0% were rekindles. We present a discrete-event simulation model of a wildfire suppression system, designed to analyze the joint impact of primary fires, rekindles and false alarms on system performance. The work contributes to fill a research gap concerning that impact, and features a novel application of simulation to suppression systems, as screening tools to support more holistic analyses. The model was implemented in ®ARENA, and used for a study of a Portuguese district. We found that reducing false alarms and rekindles to benchmark values would significantly reduce pressure on firefighting teams, enabling more effective suppression operations.
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ItemSupply Chain Strategy in High-Tech Start-ups( 2012) João Claro ; Ana Cristina BarrosSupply chain management is recognized as an important source of competitive advantage, but has mostly been studied in mature companies, and almost neglected for start-ups. We contribute to address this gap in understanding the role of supply chain strategy in start-ups, with an exploratory multiple case study of three high-tech manufacturing new ventures. Our results suggest that high-tech start-ups exploit supply chain management related competitive advantages, and their strategic choices evolve as the new ventures develop from a start-up phase to a scale-up phase.
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ItemSuppression or Prevention: Modeling forest fire management using System Dynamics( 2011) Richard de Neufville ; Ross Collins ; T. Oliveira ; João Claro
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ItemTransitioning from opportunity framing to pre-organization in academic new ventures( 2012) João Claro ; Paulo Sousa