Recursos de colección

Repositório Comum (24.607 recursos)

É um repositório para instituições de ensino e investigação produtoras de literatura científica cuja dimensão ainda não justifica a criação de um repositório próprio. Permite integrar instituições, grupos ou indivíduos na infra-estrutura do projecto, nomeadamente através das pesquisas do Portal RCAAP e da B-On.

IPS - ESTS – DSI - Comunicações em congressos

Mostrando recursos 1 - 19 de 19

  1. A Web System based on a Sports injuries model towards global athletes monitoring

    Macedo, Patrícia; Madeira, Rui Neves; Correia, André; Jardim, Marco
    This paper presents the project iReport SportsInjuries, which is a system with a focus on a Web application directed to sport health professionals, supporting the acquisition, analysis and dissemination of sports injuries information. This software will allow health professionals register and analyze sports injuries among sports populations. The application provides a reporting module that includes tables and charts to individually analyze injuries of a specific sports organization, a specific sport across organizations or a specific athlete, independently of where s/he practices. The system also offers a module for a global analysis, which allows the iReport SportsInjuries to obtain the incidence and prevalence values, besides the socioeconomics costs, regarding sports injuries at...

  2. Intercalation of a molybdenum η3-allyl dicarbonyl complex in a layered double hydroxide and catalytic performance in olefin epoxidation

    Gomes, Ana C.; Bruno, Sofia M.; Gamelas, Carla A.; Valente, Anabela A.; Abrantes, Marta; Gonçalves, Isabel S.; Romão, Carlos C.; Pillinger, Martyn
    Com o apoio RAADRI.

  3. Towards a Domain Specific Modeling Language for Agent-Based modeling of Land Use/Cover Change

    Grueau, Cédric
    While agent-based models are widely used for the simulation of human-natural systems, it remains challenging for scientists to specify their models in a manner in which they can be understood and used by others. In this research project, we survey existing solutions that have emerged to cope with models specification issues. We then propose another approach: a domain specific modeling language for agent-based simulations of land use/cover change. This language is intended to constitute a means to promote models’ validation and reuse. We also present the general methodology for the development of the modeling language which consists in extending existing conceptual...

  4. Quid Pro Quod: Enhancing Patient Safety Via Minimizing Human-Computer Interactions Errors

    Ribeiro, Nuno Valero; Caldeira, Carlos Pampulim
    The present describes an initial research project aiming at enhancing patient safety. The overall goal is to minimize human-computer interactions errors that may occur via the use of Medical Information Systems (MIS) in health care units. The main idea is to extend the approach on design of usability and safety issues of generic medical devices, or safety critical systems design, to the problem domain of patient safety in the design of MIS. An understanding of errors and patient safety issues is presented and how these issues contribute to interaction errors in MIS. A plan of the research programm and related...

  5. Coordenação e Comunicação em Atividades Organizadas Suportadas por Computador

    Ribeiro, Nuno Valero
    Os atuais meios de comunicação (telemóveis, e-mail, SMS, redes sociais, cloud, sistemas de informação, cartazes…) exercem uma forte influência na sociedade, neste sentido a palestra pretende demonstrar aos participantes a relevância destes meios no desempenho de atividades públicas, privadas e profissionais. A sessão procura, ainda, dar a conhecer como se pode observar e analisar cientificamente esta nova realidade, onde as atividades humanas são regularmente suportadas por dispositivos como o computador, telemóvel, PDA e I-pod’s, entre outros, abordando também questões como a preparação das próximas gerações para os desafios futuros da sociedade.

  6. Segurança Informática

    Ribeiro, Nuno Valero
    Pretende-se dar a conhecer aspectos de segurança relacionados com os meios informáticos, quer do ponto de vista do utilizador comum, quer do ponto de vista científico. Abordam-se questões de utilização segura dos meios informáticos e redes de computadores, segurança lógica, sistemas de cifra, sistemas de chave pública/privada, controlo de acessos, gestão e organização da segurança, factores humanos, protocolos de comunicação seguros.

  7. Applying Problem Based Learning for improving Human-tech competencies in Computer Engineering students: a research proposal

    Ribeiro, Nuno Valero; Filipe, Joaquim; Caldeira, Carlos Pampulim
    This paper summarizes the background theory of the likewise entitled research project. The project aims to give a contribution to software programming quality improving Human-tech” competencies in Computer Engineering students as a means to prevent, or at least avoid in a great extend, the rate of unsuccessful software implementation projects. We are specially interested in researching what Human Factors competencies must be profiled in Computing Curricula outcomes that may contribute to better prepare students as “Human-tech” experts. We will apply Problem Based Learning educational method for delivering those competencies to students.We believe it is possible to do better than what...

  8. The challenge of Automatic Level Generation for platform videogames based on Stories and Quests

    Mourato, Fausto; Birra, Fernando; Santos, Manuel Próspero dos
    In this article we bring the concepts of narrativism and ludology to automatic level generation for platform videogames. The initial motivation is to understand how this genre has been used as a storytelling medium. Based on a narrative theory of games, the differences among several titles have been identified. In addition, we propose a set of abstraction layers to describe the content of a quest-based story in the particular context of videogames. Regarding automatic level generation for platform videogames, we observed that the existing approaches are directed to lower abstraction concepts such as avatar movements without a particular context or...

  9. Enhancing level difficulty and additional content in platform videogames through graph analysis

    Mourato, Fausto; Birra, Fernando; Santos, Manuel Próspero dos
    In this article we present a system that enhances content in platform game levels. This is achieved by adding particular gaming entities and adjusting their arrangement, causing consequent changes in the inherent difficulty and in path related aspects. This idea follows our prior work for the automatic creation of level environments. Starting with a primal level structure and a corresponding graph that sketches the user path, the system detects mandatory and optional path sections and adapts them in order to create more elaborate challenges to the user, forcing detours to gather specific objects or trigger certain events. Alternatively, a designer...

  10. Automatic level generation for platform videogames using genetic algorithms

    Mourato, Fausto; Santos, Manuel Próspero dos; Birra, Fernando
    In this document we present an investigation on automatically generating levels for platform videogames. Common approaches for this problem are rhythm based, where input patterns are transformed in a valid geometry, and chunk based, where samples are humanly created and automatically assembled like a puzzle. The proposal hereby presented is to explore this challenge with the usage of Genetic Algorithms, facing it as a search problem, in order to achieve higher expressivity and less linearity than in rhythm based approach and without requiring human creation as it happens with the chunk based approach. With simple heuristics the system is able...

  11. Measuring Difficulty in Platform Videogames

    Mourato, Fausto; Santos, Manuel Próspero dos
    Automatic generation of game levels improves replayability and also allows content adaptation. One important aspect to take into account in the creation of any videogame is difficulty, in particular when it is possible to adapt content. However, defining difficulty is not a straight subject. In this paper we propose a metric for game difficulty in platform levels, mostly based on users’ losing probability for each obstacle. This metric can be further used in automated processes that generate levels for this type of games, helping the process to recognize whether a level is suitable or not for a certain player. We...

  12. Building on Mobile towards Better Stuttering Awareness to Improve Speech Therapy

    Madeira, Rui Neves; Macedo, Patrícia; Pita, Pedro; Bonança, Íris; Germano, Helena
    This paper describes the project I Aware my Stuttering , which is a system with a focus on a mobile application for smartphones directed to people who stutter. This software will allow users to register their stuttering related situations, registering, for example, the contexts in which they occur, the interlocutors and their reactions to the situations, and the emotions felt. The application provides a reporting module that includes charts to help visualizing how stuttering situations evolve according to several features. It will help promote daily self-monitoring of speech as a means of controlling stuttering, being personalized according to the user...

  13. Molybdenum(II) Diiodo-Tricarbonyl Complexes Containing Nitrogen Donor Ligands as Catalyst Precursors for the Epoxidation of Methyl Oleate

    Gamelas, Carla A.; Neves, P.; Gomes, Ana C.; Valente, Anabela A.; Romão, Carlos C.; Gonçalves, Isabel S.; Pillinger, M.
    Resumo alargado de "Molybdenum(II) Diiodo-Tricarbonyl Complexes Containing Nitrogen Donor Ligands as Catalyst Precursors for the Epoxidation of Methyl Oleate"

  14. Open Controller for Distributed Instrumentation Systems

    Viegas, Vítor; Girão, P. Silva; Pereira, J. M. Dias
    The paper presents a controller designed to be highly interoperable in the context of distributed instrumentation systems. Interoperability is achieved by adopting strong standards – the IEEE 1451.1 Std to be more precise – and by using cross-platform, manufacturer-independent technologies such as Web Services. The 1451.1 Std contributes with its information model to represent data and organize functionalities through a well-defined hierarchy of objects. Web Services are used to implement both communication models, the client/server model for one-to-one communications, and the publish/subscribe model for one-to-many communications. Being supported by all the major software companies around the world, Web Services have the...

  15. Service-Oriented Distributed Measurement and Control Systems: A Case Study

    Viegas, Vítor; Girão, P. Silva; Pereira, J. M. Dias
    The paper presents a Distributed Measurement and Control System (DMCS) applied to a physical process equipped with all the instrumentation needed to run control loops for temperature, level, flow and pressure, quantities widely found in the process industry. The system is supported by a service-oriented middleware platform based on the IEEE 1451.1 std and the Windows Communication Foundation (WCF). Tests were made to evaluate the performance of the system in terms of sampling frequency and behavior of control loops. The methodology of each experiment is described, results are analyzed and conclusions are extracted.

  16. Using a Commercial Framework to Implement and Enhance the IEEE 1451.1 Standard

    Viegas, Vítor; Pereira, J. M. Dias; Girão, P. Silva
    In 1999, the 1451.1 Std was published defining a common object model and interface specification to develop open, multi-vendor distributed measurement and control systems. However, despite the well-known advantages of the model, few have been the initiatives to implement it. In this paper we describe the implementation of a NCAP – Network Capable Application Processor, in a well-known and well-proven infrastructure: the Microsoft .NET Framework. The choice of a commercial framework was part of our strategy: to take advantage of several “of the shelf” technologies and adapt them to produce a NCAP prototype, called NCAP/XML. In addition, a solution to...

  17. IEEE 1451.1 Standard and XML Web Services: a Powerful Combination to Build Distributed Measurement and Control Systems

    Viegas, Vítor; Pereira, J. M. Dias; Girão, P. Silva
    In 2005, we presented the NCAP/XML, a prototype of NCAP (Network Capable Application Processor) that runs under the .NET Framework and makes available its functionality through a set of Web Services using XML (eXtended Markup Language). Giving continuity to this project, it is time to explain how to use the NCAP/XML to build a Distributed Measurement and Control System (DMCS) compliant with the 1451.1 Std. This paper is divided in two main parts: in the first part, we present the new software architecture of NCAP/XML (which suffered some changes since the first version), and secondly, we describe the network configuration...

  18. Next Generation Application Processor Based on the IEEE 1451.1 Standard and Web Services

    Viegas, Vítor; Pereira, J. M. Dias; Girão, P. Silva
    Over the last decade, the 1451.1 Std has been a reference model to develop smart and open distributed measurement and control systems. Now, that the 1451.1 Std is about to be revised, there is the opportunity to enrich it with emergent and successful technologies as is the case of Web Services. Following this idea, we present a prototype of Network Capable Application Processor (NCAP) that runs on the .NET Framework and exposes its functionality through a set of Web Services. The prototype takes advantage of three key technologies: (i) the abstraction layer proposed by the 1451.1 Std; (ii) the interoperability provided...

  19. Performance Evaluation of a Web-Service-Based DMCS

    Viegas, Vítor; Girão, P. Silva; Pereira, J. M. Dias
    The paper describes a set of experiments conducted on a service-oriented middleware infrastructure in order to evaluate its performance and applicability in the context of Distributed Measurement and Control Systems (DMCS). The infrastructure, entirely based on Web Services, was built using the Windows Communication Foundation (WCF), a software package released by Microsoft to develop distributed applications. The experiments were performed on a real plant equipped with all the instrumentation needed to run control loops for pressure, level, flow and temperature, quantities widely found in the process industry. The work focus on measuring the time delays associated with control loops and...

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