Utilização do algoritmo Self-Organizing Map na caracterização de organizações públicas portuguesas.

Dissertação apresentada como requisito parcial para a obtenção do grau de mestre em Estatística e Gestão de Informação.

Caracterização da situação orçamental no poder local em indicadores orçamentais e self-organizing map.

Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de Informação.

Análise Exploratória do Índice de Desenvolvimento Humano: uma aplicação do Self Organizing Map na segmentação dos países

Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de Informação.

Implementing quality management systems in small and medium construction companies: a contribution to a road map for success

Leadership and Management in Engineering, January 2009

Biodiversity open map (BiodOM) - SIGWeb colaborativos e Software Geoespacial Livre e Aberto numa abordagem da neogeografia aplicada ao conhecimento da biodiversidade

Trabalho de Projeto apresentado como requisito parcial para obtenção do grau de Mestre em Ciência e Sistemas de Informação Geográfica

Using GIS to map the spatial and temporal occurrence of cholera epidemic in Camaroon

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies

Hole cleaning performance monitoring during the drilling of directional wells

During drilling operation, cuttings are produced downhole and must be removed to avoid issues which can lead to Non Productive Time (NPT). Most of stuck pipe and then Bottom-Hole Assembly (BHA) lost events are hole cleaned related. There are many parameters which help determine hole cleaning conditions, but a proper selection of the key parameters will facilitate monitoring hole cleaning conditions and interventions. The aim of Hole Cleaning Monitoring is to keep track of borehole conditions including hole cleaning efficiency and wellbore stability issues during drilling operations. Adequate hole cleaning is the one of the main concerns in the underbalanced drilling operations especially for directional and horizontal wells. This dissertation addresses some hole cleaning fundamentals which will act as the basis for recommendation practice during drilling operations. Understand how parameters such as Flowrate, Rotation per Minute (RPM), Rate of Penetration (ROP) and Mud Weight are useful to improve the hole cleaning performance and how Equivalent Circulate Density (ECD), Torque & Drag (T&D) and Cuttings Volumes coming from downhole help to indicate how clean and stable the well is. For case study, hole cleaning performance or cuttings volume removal monitoring, will be based on real-time measurements of the cuttings volume removal from downhole at certain time, taking into account Flowrate, RPM, ROP and Drilling fluid or Mud properties, and then will be plotted and compared to the volume being drilled expected. ECD monitoring will dictate hole stability conditions and T&D and Cuttings Volume coming from downhole monitoring will dictate how clean the well is. T&D Modeling Software provide theoretical calculated T&D trends which will be plotted and compared to the real-time measurements. It will use the measured hookloads to perform a back-calculation of friction factors along the wellbore.

Map-it – Mapeamento tridimensional de interiores

A perceção tridimensional é uma área em crescente desenvolvimento. Não existindo uma tecnologia ideal capaz de percecionar todo o tipo de cenários, têm surgido estudos sobre a aplicabilidade de diferentes tecnologias de forma a obter modelos que melhor se aproximem da realidade. Propõe-se nesta dissertação o desenvolvimento de um sistema de baixo-custo de percepção tridimensional que seja portátil e acessível na sua aplicabilidade, de forma a ter a capacidade de percecionar tridimensionalmente espaços interiores com pouca iluminação, tais como as divisões de um edifício ou os canais de uma mina subterrânea. Utilizou-se a triangulação entre uma câmara digital, os pontos de uma linha laser e um emissor laser para a obtenção dos dados tridimensionais do cenário. Para isso, recorreu-se a metodologias de processamento digital de imagens para a construção dos modelos dos cenários. Para se obter a validação desta dissertação, realizaram-se testes do protótipo de forma a determinar as suas capacidades percecionais. Em primeiro lugar realizou-se uma bateria de testes de calibração onde, repetidamente, se estudaram isoladamente pontos do cenário para verificar a precisão do sensor. Após esta calibração, estudou-se a capacidade de transformação de uma linha laser projetada num conjunto de coordenadas. Finalmente testou-se a capacidade de perceção tridimensional por rotação do sensor, de forma a realizar a transformação de múltiplas projeções de linhas laser num conjunto de coordenadas em torno do sensor. Verificou-se: no teste de calibração, a obtenção de distâncias com erro médio relativo inferior a 1%; no teste da linha laser, a capacidade de perceção de profundidade de múltiplos pontos ao longo da mesma; no teste de rotação, a aquisição de múltiplos conjuntos de linhas de profundidade no cenário, por rotação do sensor. Os resultados dos testes de validação permitiram concluir a viabilidade de utilizar a triangulação na aquisição de conjuntos de coordenadas de espaços interiores.

Fate map of zebrafish left-right organizer

The organizer is a ciliated signalling transient organ, responsible for the patterning of embryo tissues during embryonic development. In higher vertebrates, such as mouse and chick, this organizer (the node and the Hensen’s node, respectively) performs dorsalventral and anteriorposterior axis definition, as well as left-right patterning of the internal organs. In lower vertebrates, such as frog and zebrafish, there is a separate specialized organ for left-right purposes called the Gastrocoel Roof Plate (GRP) and Kupffer’s Vesicle (KV), respectively. It is known that mouse and chick organizer cells give rise to structures like floor plate, notochord, hypochord and somites. Frog GRP originates all these but floor plate. In zebrafish, at 13-14 somite stage (ss) the KV finished its left-right patterning but what happens to this organizer’ cells is still poorly studied. This research attempts to understand the fate and behaviour of the KV cells. We followed the fate of KV cells by live imaging and by tight time-courses with fixed larvae. We assessed in detail their proliferative and death profile, as well as cilia length progression from 9-10 ss until 29-30 ss. We conclude that the KV cells mostly follow the evolutionarily conserved fates described for other organizers. These cells mainly incorporate the notochord and hypochord; few cells incorporate the floor plate and the somites. As a novelty, it is also hypothesized that the hypural cell fate may be among the KV cell fates.

Design and implementation of an assurance map at Sonae retail business

The present Working Project aims at studying the topic of assurance mapping in a specific organizational context of a Portuguese retail company. For this purpose, an assurance map framework was designed to support the decision making process of stakeholders, through the delivery of comfort concerning risks, operations and control. In the end, the framework was successfully implemented for the process sourcing of goods in two business units of the company. Although, further implementation of the framework proved not to be feasible during the project’s timespan, it is expected to occur in the near future.

Nicolas Sanson and his Map: The Course of the Amazon River

One of the first scientific maps of the Amazon region, The Course of the Amazon River (Le Cours de La Rivière des Amazones), was constructed by Nicolas Sanson, a French cartographer of the seventeenth century, and served as the prototype for many others. The evaluation of this chart, until now, has been that it is a very defective map, a sketch based on a historical account, according to the opinion of La Condamine. Thus, the aim of the present work was to prove that the map of the Amazon River traced by Nicolas Sanson is a scientific work, a map that presents precise geographic coordinates considering its time, shows a well-determined prime meridian, and also employs a creative methodology to deduce longitudes from latitudes and distances that had been covered. To show such characteristics, an analysis of the accuracy of the map was made by comparing its latitudes and longitudes with those of a current map. We determined the prime meridian of this map and analyzed the methodology used for the calculation of longitudes. The conclusion is that it is actually a good map for the time, particularly considering the technology and the limited information that Sanson had at his disposal. This proves that the negative assertion of La Condamine is unfounded.

The Ovimbundu of Angola / by Wilfrid D. Hambly --. Frederick H. Rawson-Field Museum Ethnological Expedition to West Africa, 1929-30. 84 plates in photogravure and 1 map. Berthold Laufer -- editor.

v.21:no.2(1934)

Culture areas of Nigeria, by Wilfrid D. Hambly -- Frederick H. Rawson-Field Museum Ethnological Expedition to West Africa, 1929-30. 68 plates in photogravure and 1 map.

v.21:no.3(1935)