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Publications by CITE

2018

Handbook of Research on Strategic Innovation Management for Improved Competitive Advantage

Authors
Jamil, GL; Ferreira, JJP; Pinto, MM; Pessoa, CRM; Xavier, A;

Publication
Advances in Business Strategy and Competitive Advantage

Abstract

2018

Operational flexibility in forest fire prevention and suppression: a spatially explicit intra-annual optimization analysis, considering prevention, (pre)suppression, and escape costs

Authors
Pacheco, AP; Claro, J;

Publication
EUROPEAN JOURNAL OF FOREST RESEARCH

Abstract
Increasing wildfire threats and costs escalate the complexity of forest fire management challenges, which is grounded in complex interactions between ecological, social, economic, and policy factors. It is immersed in this difficult context that decision-makers must settle on an investment mix within a portfolio of available options, subject to limited funds and under great uncertainty. We model intra-annual fire management as a problem of multistage capacity investment in a portfolio of management resources, enabling fuel treatments and fire preparedness. We consider wildfires as the demand, with uncertainty in the severity of the fire season and in the occurrence, time, place, and severity of specific fires. We focus our analysis on the influence of changes in the volatility of wildfires and in the costs of escaped wildfires, on the postponement of capacity investment along the year, on the optimal budget, and on the investment mix. Using a hypothetical test landscape, we verify that the value of postponement increases significantly for scenarios of increased uncertainty (higher volatility) and higher escape costs, as also does the optimal budget (although not proportionally to the changes in the escape costs). Additionally, the suppression/prevention budget ratio is highly sensitive to changes in escape costs, while it remains mostly insensitive to changes in volatility. Furthermore, we show the policy implications of these findings at operational (e.g., spatial solutions) and strategic levels (e.g., climate change). Exploring the impact of increasing escape costs in the optimal investment mix, we identified in our instances four qualitative system stages, which can be related to specific socioecological contexts and used as the basis for policy (re)design. In addition to questioning some popular myths, our results highlight the value of fuel treatments and the contextual nature of the optimal portfolio mix.

2018

Renewable integration through transmission network expansion planning under uncertainty

Authors
Loureiro, MV; Schell, KR; Claro, J; Fischbeck, P;

Publication
ELECTRIC POWER SYSTEMS RESEARCH

Abstract
In this paper we bring together a stochastic mixed integer programming model for transmission network expansion planning, incorporating portfolios of real options to address the evolution in time of uncertain parameters, with the adjusted generalized log-transformed model, to expand the number of correlated parameters that can be modeled. We apply these methods to evaluate the potential contribution of underwater transmission investments to increase renewables penetration in the Azores archipelago. The approach also includes expansion lead times, due to the large timespans involved in the construction of new transmission lines. Our analysis focuses on a set of the four closest islands in the archipelago, Pico, Faial, S. Jorge and Terceira, and shows that even though investments are delayed and the future network configuration varies according to the evolution of renewable generation scenarios, an investment in underwater transmission, if technically feasible, within the assumptions of our model, could in fact contribute to increase renewables penetration, by enabling islands with an excess in generation from renewable sources to supply other islands in a deficit situation.

2018

Canvas Framework for Performing Systematic Reviews Analysis

Authors
Almeida, F;

Publication
Multidisciplinary Journal for Education, Social and Technological Sciences

Abstract
<p class="Textoindependiente21">The systematic review of the literature is a fundamental methodology for analyzing critically the existing literature on a given research theme. They are designed to be methodical, replicable and guide the author in identifying the main lines of investigation and conclusions in each scientific domain and, in addition, help them in the identification of new directions of research. However, the systematic review process is typically viewed as too heterogeneous, complex and time-consuming. In this sense, it is pertinent to propose a new approach for conducting systematic reviews that may be more agile, not only in terms of development, but also in the analysis of the results of a systematic review process. This article presents a canvas framework for conducting a systematic review composed of nine blocks and based on a set of identified good practices found in the literature, in which it is possible to easily identify all the steps of the process, options taken, and main results.</p>

2018

UX Challenges and Best Practices in Designing Web and Mobile Solutions

Authors
Almeida, F; Monteiro, JA;

Publication
Advances in Computer and Electrical Engineering - Handbook of Research on Contemporary Perspectives on Web-Based Systems

Abstract

2018

Structure and challenges of a security policy on small and medium enterprises

Authors
Almeida, F; Carvalho, I; Cruz, F;

Publication
KSII Transactions on Internet and Information Systems

Abstract
Information Technology (IT) plays an increasingly important role for small and medium-sized enterprises. It has become fundamental for these companies to protect information and IT assets in relation to risks and threats that have grown in recent years. This study aims to understand the importance and structure of an information security policy, using a quantitative study that intends to identify the most important and least relevant elements of an information security policy document. The findings of this study reveal that the top three most important elements in the structure of a security policy are the asset management, security risk management and define the scope of the policy. On the other side, the three least relevant elements include the executive summary, contacts and manual inspection. Additionally, the study reveals that the importance given to each element of the security policy is slightly changed according to the sectors of activity. The elements that show the greatest variability are the review process, executive summary and penalties. On the other side, the purpose of the policy and the asset management present a stable importance for all sectors of activity. © 2018 KSII.

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