896 resultados para Innovative configuration
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Consumer-electronics systems are becoming increasingly complex as the number of integrated applications is growing. Some of these applications have real-time requirements, while other non-real-time applications only require good average performance. For cost-efficient design, contemporary platforms feature an increasing number of cores that share resources, such as memories and interconnects. However, resource sharing causes contention that must be resolved by a resource arbiter, such as Time-Division Multiplexing. A key challenge is to configure this arbiter to satisfy the bandwidth and latency requirements of the real-time applications, while maximizing the slack capacity to improve performance of their non-real-time counterparts. As this configuration problem is NP-hard, a sophisticated automated configuration method is required to avoid negatively impacting design time. The main contributions of this article are: 1) An optimal approach that takes an existing integer linear programming (ILP) model addressing the problem and wraps it in a branch-and-price framework to improve scalability. 2) A faster heuristic algorithm that typically provides near-optimal solutions. 3) An experimental evaluation that quantitatively compares the branch-and-price approach to the previously formulated ILP model and the proposed heuristic. 4) A case study of an HD video and graphics processing system that demonstrates the practical applicability of the approach.
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Currently, the teaching-learning process in domains, such as computer programming, is characterized by an extensive curricula and a high enrolment of students. This poses a great workload for faculty and teaching assistants responsible for the creation, delivery, and assessment of student exercises. The main goal of this chapter is to foster practice-based learning in complex domains. This objective is attained with an e-learning framework—called Ensemble—as a conceptual tool to organize and facilitate technical interoperability among services. The Ensemble framework is used on a specific domain: computer programming. Content issues are tacked with a standard format to describe programming exercises as learning objects. Communication is achieved with the extension of existing specifications for the interoperation with several systems typically found in an e-learning environment. In order to evaluate the acceptability of the proposed solution, an Ensemble instance was validated on a classroom experiment with encouraging results.
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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Dissertação para obtenção do Grau de Doutor em Química Sustentável
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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9th International Masonry Conference 2014, 7-9 July, Universidade do Minho, Guimarães
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This paper presents a preliminary acoustic study concerning the development of the first prototype of a patented removable module for interior partitioning. It is a prefabricated, vertical element for division of interior spaces that does not require the use of gutters or technical support. A set of such modules, linearly disposed, will create a division, allowing the personalization of any indoor area, including open office spaces, rooms, among others. The main characteristic that distinguishes this element from the existing solutions available on the market is that its mobility relies exclusively on a set of integrated bearings at the base of each module. Through an incorporated elevation system, the user can lower the module, move it to the desired position and re-elevate it until pressed against the ledge of the ceiling, making it stable. In this sense, and taking into account its acoustic behavior, several tests were made in the LNEC acoustics lab. Airborne sound insulation tests for different typologies of the prototype were conducted, according to the applicable standards EN ISO 354:2003, EN ISO 717-1:2013 and EN ISO 10140-2:2010. Some important conclusions and analysis of the prototype viability were extracted.
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Field Lab in Entrepreneurial Innovative Ventures
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Due to global warming and shrinking fossil fuel resources, politics as well as society urge for a reduction of green house gas (GHG) emissions. This leads to a re-orientation towards a renewable energy sector. In this context, innovation and new technologies are key success factors. Moreover, the renewable energy sector has entered a consolidation stage, where corporate investors and mergers and acquisitions (M&A) gain in importance. Although both M&A and innovation in the renewable energy sector are important corporate strategies, the link between those two aspects has not been examined before. The present thesis examines the research question how M&A influence the acquirer’s post-merger innovative performance in the renewable energy sector. Based on a framework of relevant literature, three hypotheses are defined. First, the relation between non-technology oriented M&A and post-merger innovative performance is discussed. Second, the impact of absolute acquired knowledge on postmerger innovativeness is examined. Third, the target-acquirer relatedness is discussed. A panel data set of 117 firms collected over a period of six years has been analyzed via a random effects negative binomial regression model and a time lag of one year. The results support a non-significant, negative impact of non-technology M&A on postmerger innovative performance. The applied model did not support a positive and significant impact of absolute acquired knowledge on post-merger innovative performance. Lastly, the results suggest a reverse relation than postulated by Hypothesis 3. Targets from the same industry significantly and negatively influence the acquirers’ innovativeness.
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Field lab: Entrepreneurial and innovative ventures
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RESUMO - Este artigo descreve a evolução do estatuto jurídico do hospital público português, com o intuito de o caracterizar, em especial do ponto de vista da sua autonomia. Considera-se que, pelo menos em parte, o estatuto jurídico do hospital público português é responsável pela limitada autonomia de que estas instituições gozaram nos últimos sessenta anos, com as consequentes ineficiências na produção e produtividade, fraca equidade no acesso e aumento de custos com a prestação de cuidados, de discutível qualidade. Nessa medida, várias reformas foram implementadas com o intuito de conferir ao hospital maior autonomia: ao nível da gestão, do financiamento e também reformas organizacionais. De um sistema regionalizado, estabelecido em 1946, até ao Serviço Nacional de Saúde e ao hospital dos nossos dias foram adoptados diversos modelos estatutários. A reforma de 2002 pretende estabelecer uma clara fronteira entre o hospital público, administrativo, burocratizado e aquele que assume natureza empresarial, numa clara viragem — demasiado precoce? — com as «experiências inovadoras » subsequentes à Lei de Bases da Saúde, que permitiram concluir que à maior autonomia correspondiam atitudes e resultados pró-activos e positivos. Por outro lado, ultima-se a preparação da construção de dez novos hospitais com recurso a parcerias público-privadas (PPP), sem ainda estarem definidos quais os estatutos, grau de autonomia e forma de gestão destas entidades. Ainda é cedo para avaliar esta última reforma; não deverá, no entanto, perder-se de vista que a implementação de um novo estatuto jurídico para os hospitais terá necessariamente de permitir a sua renovação sem descurar a sua secular missão de solidariedade.
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The present dissertation aims at contributing to a strategic view over the use of innovative medicines in the portuguese private health sector, as a way of being complementary to public system that nowadays finances most of the innovative medicines. With the rationalization of expenses in the public health sector, pharmaceutical companies tend to look for opportunities of expansion to the private sector. The creation of innovative financial models for the private sector to cover innovative treatments is the proposed way of surpassing the restriction on the NHS sales of innovative medicines. This can be both for differentiating private health providers from the NHS or for the creation of premium services that can be differentiated from other private providers of the portuguese market.