Investigation of Normal Force and Moment Coefficients for an AUV at Nonlinear Angle of Attack and Sideslip Range

This paper presents a comparative study of computational fluid dynamics (CFD) and analytical and semiempirical (ASE) methods applied to the prediction of the normal force and moment coefficients of an autonomous underwater vehicle (AUV). Both methods are applied to the. bare hull of the vehicle and to the body-hydroplane combination. The results are validated through experiments in a towing tank. It is shown that the CFD approach allows for a good prediction of the coefficients over the range of angles of attack considered. In contrast with the traditional ASE formulations used in naval and aircraft fields, an improved methodology is introduced that takes advantage of the qualitative information obtained from CFD flow visualizations.

A política de cooperação portuguesa com os PALOP: contributos do Ensino Superior Politécnico

RESUMO: É longínqua e indiscutível a ligação que se estabelece entre Portugal e os Países Africanos de Língua Oficial Portuguesa. No entanto, a manutenção dos laços de entreajuda e cooperação, embora desejada e expressamente manifestada por ambas as partes, nem sempre se consubstancia em acções concretas. É neste contexto que se insere o presente trabalho, tendo como objectivo investigar de que modo se materializa a Política de Cooperação entre Portugal e os Países Africanos de Língua Oficial Portuguesa, ao nível do Ensino Superior. Avaliamos concretamente a actuação das Instituições de Ensino Superior Politécnico, junto dos alunos oriundos daqueles países, no domínio da Acção Social e de que modo pode existir uma acção diferenciadora entre Instituições, capaz de captar alunos e de os acolher em melhores condições. Perante as carências e fragilidades encontradas naquela população, concluímos que existe um vasto campo de actuação onde as Instituições de Ensino Superior podem realizar os propósitos enunciados nos Acordos de Cooperação, estabelecidos com aqueles Países. Actuando em prol destes alunos efectivam assim as resoluções enunciadas para a Política de Cooperação Portuguesa em matéria de educação e divulgação da língua e cultura portuguesas, contribuindo ainda, para o desenvolvimento daqueles países. ABSTRACT: It is far and indisputable the link established between Portugal and the African Countries of Portuguese Official Language (PALOP). However, the maintenance of ties of mutual aid and cooperation, though desired and explicitly expressed by both sides, has not always been embodied in concrete actions. It is this context that frames the present work, aiming to investigate how the policy of cooperation between Portugal and the African Countries of Portuguese Official Language is materialized at the Higher Education level. We specifically evaluate the performance of Polytechnic Higher Education Institutions with the students from those countries in the field of social aid and how a differentiator action between institutions can be in place, capable of capturing students and welcoming them in a better way. In face of the needs and weaknesses found in that population, we conclude that there is a vast field of activity where HEI can realize the goals set out in the Cooperation Agreements established with those countries. Acting on behalf of these students they put to practice the resolutions set out for the Portuguese Cooperation Policy in education and dissemination of the Portuguese language and culture, thus contributing to the development of those countries.

O desenvolvimento da capacidade de avaliação nos países parceiros: a realização de avaliações conjuntas

Comunicação apresentada no 3º Encontro Conhecimento e Cooperação, INA, Lisboa, 17 de setembro de 2015

Promover os direitos das crianças - apostar na construção de melhores políticas públicas para a criança

Comunicação apresentada no 3º Encontro de Conhecimento e Cooperação, INA, Lisboa, 17 de setembro de 2015

Análise estrutural da Cooperação Portuguesa passado, presente e futuro

Comunicação apresentada no 3º Encontro de Conhecimento e Cooperação, INA, Lisboa, 17 de setembro de 2015

Participação do sector privado na Cooperação: da teoria à prática

Comunicação apresentada no 3º Encontro Conhecimento e Cooperação, INA, Lisboa, 17 de setembro de 2015

Cooperação Portugal-PALOP no Domínio da Comunicação Social

The paper examines the cooperation between Portugal and the African Portuguese Speaking Countries (APSC: Angola, Cabo Verbe, Guinea-Bissau, Mozambique and S. Tomé and Príncipe) in media-relevant fields. It starts off with an outlook into cooperation activities undertaken by various countries in the APSC in such a field and assesses those initiatives in terms of linguistic and cultural significance. Next, I review the Portuguese institutional framework and the legal instruments for this kind of cooperation. The central aspect of the paper is a critical analysis of measures and projects related to training of journalists and other media professionals. The goal is to identify sensitive aspects and difficulties. I conclude with a global assessment of the Portuguese cooperation in the field of media and advance some suggestions for improvement.

A transnacionalização das políticas educativas : itinerários da cooperação portuguesa em Cabo Verde, Guiné-Bissau e S. Tomé e Príncipe (1974-2002)

The main focus of the present investigation is on the transnationalization of the education policies in Cape Verde, Guine-Bissau and San Tome and Prince from 1974 to 2002 and it deals mostly with the role played by the Portuguese co operants in this field, namely teachers, teacher trainers and education technicians. Our investigation is based mostly on the theoretical and empiric analysis of the problematic of the transnatio nalizaton of the education policies, bearing in mind the concepts formulated by several renowned authors like those by Stone(2001, 2004) as well as by Dolowitz and Marsch (2002) concerning the area of knowledge transfer. The concept transnationalization we have used throughout this dissertationshould be interpreted as a carrefour , that is, a crossroad of technical knowledge, resulting from the way the different mediators have shared their expertise and who gradually contributed to the implementation of the new education systems and the consolidation of the education policies of the countries just mentioned before. We have also analyzed specific points of reference connected both with globalization and organization sociology theories since the school is the main scope of action where the participants interact using diversified strategies due to their different interests and aims. Those schools are more and more confronted with education policies resulting from neoliberal assumptions therefore we label them terminals of the education policy journeys. The naturalist paradigm, which includes a qualitative and interpretative approach, answers for the design of this investigation, whose main strategy is the Oral History. The primary sources analyzed and the interviews made have enabled us to build our knowledge based on the grounded theory method (Glasser and Strauss, 1967), supported by the informatic programme Atlas TI. We conclude that despite the weaknesses and fragilities of the Portuguese cooperation, this is the right arena for a more convergent transference of values and education (al) systems; it is a kind of hybrid territory where the knowledge transfer suits the local reality, independently of all the dilemmas resulting from globalization.

Planning, Cooperation and Competition: A case study in industry and construction in a Portuguese Region

In the present paper we analyzed the behavior of firms in the construction and manufacturing sectors, located in the region of Vale do Sousa, in the north of Portugal. From the literature, even existing some disagreements, it is possible to conclude that planning is crucial for firms survival and growth. Cooperation is another aspect that the literature presents as an important factor for firms sustainability. It also plays a major role in competition, since firms are adopting coopetition strategies. By studying a sample of 251 firms, it was possible to realize, that the majority started their business without a formal planning, and they keep going without using it. In cooperation aspects, there is a lack of cooperation. It was possible to verify, that existing cooperation has some evidence but at a vertical level. These vertical relations were also identified in stakeholder’s involvement.

Trans-national cooperation: an asset in the Portuguese overseas trade. Foreigners operating in the Portuguese overseas trade, 1580-1590

This paper aims to discuss the role of foreign merchants, operating from Portugal, in the Portuguese overseas trade, during the first ten years of Iberian Union. The focus is not in products or routes, but in the mechanisms of association of such merchants. Iberian Union created a legal framework which prohibited the interference and trade of Portuguese agents in the Spanish Empire and vice-versa. Due to the imperialist wars of the Habsburgs, the Portuguese Empire also suffered from Dutch and English rivalry both in the Indic and in the Atlantic and also from the embargos of Dutch and English products and ships in Iberian ports. In such conjuncture, how did merchants related with each other? What was the impact of the political union of the Portuguese and Spanish crowns in trading associations? The used data sources are the notarial contracts of Lisbon for the same period. The paper highlights the role of Castilian merchants in the Portuguese trade, but it also stresses that Iberian partnerships have prevailed before 1580. The role of other merchants, such as Flemish/Dutch, Germans, Italians and French, is also considered. The paper discusses how and why did these merchants join in trans-national partnerships and what was their role in the Portuguese trade network at the time.

Training in oncoplastic surgery: An international consensus. The 7th Portuguese Senology Congress, Vilamoura, 2009

Oncoplastic Breast Surgery (OPBS) is becoming an integral part of breast cancer management, but few surgeons have received formal training in these techniques. An International Symposium has recently debated the key issues which impact on training and specialisation in OPBS, as well as patient access to these procedures. The Symposium concluded that increasing the availability of OPBS is a major challenge, which demands much closer collaboration and cooperation between breast and plastic surgeons, backed up by new training schemes, new curricula and new guidelines. (C) 2010 Elsevier Ltd. All rights reserved.

The influence of relationship quality and culture in the relations between exporter and distributor : the case of portuguese exports to Angola

The objective of this research is to investigate the role of the relationship quality, cooperation and culture between Portuguese companies and their export market intermediaries in Angola. In particular, we aim to understand the importance that the quality of the relationship has in cooperation and the role of cultures in export activities. An important aspect of this study is precisely the fact that it includes an African country, where, in terms of the literature, there is a strong lack of studies. In terms of methodology we opted for qualitative analysis; we present the results of two case studies of Portuguese exporting companies and one case study of Angolan intermediate. In general, the results are that the business relationships are characterized by trust, commitment, cooperation, culture, similar values, as in the past, Angola belonged to Portugal there is easy communication because both countries share the same. Such factors will influence the trade relations between Portuguese exporters and their Angolan distributors.

Factors influencing innovation decision making in Portuguese firms

There is an undeniable positive effect of innovation for both firms and the economy, with particular regards to the financial performance of firms. However, there is an important role of the decision making process for the allocation of resources to finance the innovation process. The aim of this paper is to understand what factors explain the decision making process in innovation activities of Portuguese firms. This is an empirical study, based on the modern theoretical approaches, which has relied on five key aspects for innovation: barriers, sources, cooperation, funding; and the decision making process. Primary data was collected through surveys to firms that have applied for innovation programmes within the Portuguese innovation agency. Univariate and multivariate statistical techniques were used. Our results suggest that the factors that mostly influence the Portuguese firms’ innovation decision-making processes are economical and financial (namely those related to profit increase and labour costs reduction).