993 resultados para DIÁLOGO INTER-RELIGIOSO
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Most current-generation Wireless Sensor Network (WSN) nodes are equipped with multiple sensors of various types, and therefore support for multi-tasking and multiple concurrent applications is becoming increasingly common. This trend has been fostering the design of WSNs allowing several concurrent users to deploy applications with dissimilar requirements. In this paper, we extend the advantages of a holistic programming scheme by designing a novel compiler-assisted scheduling approach (called REIS) able to identify and eliminate redundancies across applications. To achieve this useful high-level optimization, we model each user application as a linear sequence of executable instructions. We show how well-known string-matching algorithms such as the Longest Common Subsequence (LCS) and the Shortest Common Super-sequence (SCS) can be used to produce an optimal merged monolithic sequence of the deployed applications that takes into account embedded scheduling information. We show that our approach can help in achieving about 60% average energy savings in processor usage compared to the normal execution of concurrent applications.
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Trabalho de natureza profissional para atribuição do Título de Especialista do Instituto Politécnico do Porto, na área de Turismo e Lazer, defendido a 22-01-2014
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PROFIBUS is an international standard (IEC 61158, EN 50170) for factory-floor communications, with several thousands of installations worldwide. Taking into account the increasing need for mobile devices in industrial environments, one obvious solution is to extend traditional wired PROFIBUS networks with wireless capabilities. In this paper, we outline the major aspects of a hybrid wired/wireless PROFIBUS-based architecture, where most of the design options were made in order to guarantee the real-time behaviour of the overall network. We also introduce the timing unpredictability problems resulting from the co-existence of heterogeneous physical media in the same network. However, the major focus of this paper is on how to guarantee real-time communications in such a hybrid network, where nodes (and whole segments) can move between different radio cells (inter-cell mobility). Assuming a simple mobility management mechanism based on mobile nodes performing periodic radio channel assessment and switching, we propose a methodology to compute values for specific parameters that enable an optimal (minimum) and bounded duration of the handoff procedure.
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Dissertação para obtenção do grau de Mestre em Música - Interpretação Artística
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The goal of this paper is to discuss the benefits and challenges of yielding an inter-continental network of remote laboratories supported and used by both European and Latin American Institutions of Higher Education. Since remote experimentation, understood as the ability to carry out real-world experiments through a simple Web browser, is already a proven solution for the educational community as a supplement to on-site practical lab work (and in some cases, namely for distance learning courses, a replacement to that work), the purpose is not to discuss its technical, pedagogical, or economical strengths, but rather to raise and try to answer some questions about the underlying benefits and challenges of establishing a peer-to-peer network of remote labs. Ultimately, we regard such a network as a constructive mechanism to help students gain the working and social skills often valued by multinational/global companies, while also providing awareness of local cultural aspects.
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Dissertation presented to obtain the Ph.D degree in Biology by Universidade Nova de Lisboa, Instituto de Tecnologia Química e Biológica, Instituto Gulbenkian de Ciência.
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Tese apresentada para cumprimento dos requisitos necessários à obtenção do grau de Doutor em Linguística – especialização em Linguística Portuguesa
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A Diplomacia de Defesa, apesar de existir com outros nomes e formas há já muitas décadas, só há relativamente pouco tempo lhe foi atribuída o espaço e o reconhecimento devido, quer em termos políticos, quer académicos. O presente trabalho pretende reconhecer o contributo da Diplomacia de Defesa para a concretização de importantes objetivos de política externa e apresentar uma definição que reflete não apenas a forma como é exercida mas, também, aquilo que realmente é: o emprego não violento de meios e recursos militares pelo Ministério da Defesa Nacional e pelas Forças Armadas, em atividades de cooperação com países aliados, parceiros e outros estrategicamente relevantes. O objetivo final da Diplomacia de Defesa não é apenas promover a cooperação bilateral e multilateral no âmbito da Defesa de uma forma altruísta, mas estabelecer parcerias benéficas do interesse dos países envolvidos e, nessa perspetiva, a Diplomacia de Defesa é uma aplicação direta de soft power. E porque o hard power gera soft power, a eficácia do soft power depende, evidentemente, da credibilidade do hard power. O uso da Diplomacia de Defesa como uma ferramenta da diplomacia já não deve ser, assim, uma escolha, mas uma componente necessária na análise das questões globais devendo ser reconhecida - e não temida - como um multiplicador de força de política externa.
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The neuro-peptide hormone oxytocin regulates several reproductive mechanisms in mammals, such as uterine contractions during parturition and milk ejection in the lactating mammary gland. Oxytocin may also influence behavior and behavioral strategies, e.g. pair bonding, social recognition, maternal behavior, trust building, or anxiety. Teasing oestrous mares by a stallion provokes the release of oxytocin. We therefore tested whether such elevated oxytocin levels reveal possible mate preferences as determined in typical preference tests.
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Puteanus
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Memmianus
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Colbertinus
