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Publications

2013

Smart Insular Grids: Opportunities and Challenges

Authors
Erdinc, O; Catalao, JPS; Uzunoglu, M; Boynuegri, AM;

Publication
2013 3RD INTERNATIONAL CONFERENCE ON ELECTRIC POWER AND ENERGY CONVERSION SYSTEMS (EPECS)

Abstract
The ever increasing environmental concerns together with depletion risk of conventional fossil fuels that can threat the energy independence of energy importing countries have led to more interest in renewable energy sources of locally produced energy. Increase in such sources together with new types of integrated loads has required new concepts to operate bulk electricity power grid. Accordingly, a relatively new concept - the smart grid - has been widely publicized recently with huge investments of both developed and developing country governments in this area. The smart grid concept is currently in the test phase and insular grids have been generally considered as one of the most suitable structures to evaluate the applicability of "smart" solutions. Thus, the general structure and applicable smart grid based strategies are presented in this study to promote the overall operating performance of such systems. The opportunities as well as the possible challenges of smart solutions are discussed, and the future requirements are evaluated.

2013

Polyhedral study of simple plant location problem with order

Authors
Vasilyev, I; Klimentova, X; Boccia, M;

Publication
Operations Research Letters

Abstract
This paper is addressed to the generalization of simple plant location problem where customer's preferences are taken into account. Some basic polyhedral studies and a new family of facet-defining inequalities are given. The effectiveness of the proposed approach is illustrated by the computational experience.

2013

A branch-and-bound procedure for forest harvest scheduling problems addressing aspects of habitat availability

Authors
Neto, T; Constantino, M; Martins, I; Pedroso, JP;

Publication
INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH

Abstract
In the literature, the most widely referred approaches regarding forest harvesting scheduling problems involving environmental concerns have typically addressed constraints on the maximum clear-cut area. Nevertheless, the solutions arising from those approaches in general display a loss of habitat availability. Such loss endangers the survival of many wild species. This study presents a branch-and-bound procedure designed to find good feasible solutions, in a reasonable time, to forest harvest scheduling problems with constraints on the clear-cut area and habitat availability. Two measures are applied for the habitat availability constraints: the area of all habitats and the connectivity between them. In each branch of the branch-and-bound tree, a partial solution leads to two children nodes, corresponding to the cases of harvesting or not harvesting a given stand in a given period. Pruning is based on constraint violations or unreachable objective values. Computational results are reported.

2013

Mobile Advertising for the Catering Industry

Authors
Dias, L; Coelho, A;

Publication
PROCEEDINGS OF THE 2013 8TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI 2013)

Abstract
This paper present the creation of a platform, highly scalable and modular, providing new services to the advertising and marketing for the catering industry, taking advantage of the spatial context and user preferences, benefiting from the advantages of Mobile Advertising and Mobile Augmented Reality.

2013

Metalearner Based on Dynamic Neural Network for Strategic Bidding in Electricity Markets

Authors
Pinto, T; Sousa, TM; Barreira, E; Praça, I; Vale, ZA;

Publication
24th International Workshop on Database and Expert Systems Applications, DEXA 2013, Prague, Czech Republic, August 26-29, 2013

Abstract

2013

SIARD Archive Browser - The Components

Authors
Rahman, AU; David, G; Ribeiro, C;

Publication
ICADL

Abstract
The Software-Independent Archival of Relational Databases (SIARD) project developed a tool known as the "SIARD Suite" for preserving relational databases. The tool converts a relational database to a XML format. This paper presents the components of the SIARD Archive Browser which is a simple to use and platform-independent tool for browsing a SIARD Archive. This may be helpful for users interested in using the software. Moreover, it may be useful for people who want to re-use the code and develop software for browsing a SIARD archive with more functionality. © Springer International Publishing 2013.

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