UTL Repository Universidade Técnica de Lisboa
O Repositório Institucional da Universidade Técnica de Lisboa desenvolvido no âmbito do projecto RCAAP. Este repositório destina-se a recolher, preservar e disponibilizar o acesso às publicações científicas e didácticas de seis: Escolas da UTL: Faculdade de Medicina Veterinária, Instituto Superior de Agronomia, Instituto Superior de Economia e Gestão, Instituto Superior de Ciências Sociais e Políticas , Faculdade de Motricidade Humana, Faculdade de Arquitectura. O Instituto Superior Técnico, igualmente Escola Da UTL, tem repositório independente.
BISA - Teses de Mestrado
Mostrando recursos 1 - 20 de 693
Efeitos da desfolha e monda de cachos no rendimento e qualidade da uva e do vinho na casta Merlot - Grave, João Carlos Sousa de Barros
This study was created with a purpose of searching for an effective method of promoting an higher concentration of colour compounds in the wine, on Merlot variety. We evaluated the effects of three different canopy management practices in the vineyard: early defoliation at pre-bloom (DF), partial defoliation at pea size (DN) and cluster thinning at veraison (M), compared with a control (T). The trial was conducted in 2012, in a company called Encosta do Sobral Sociedade Agrícola which is located near Tomar, inside Tejo wine region.
The weather conditions were unusual, that year, registering very little rainfall during the grapevine activity...
Estratégias de gestão e de conservação para a paisagem cultural de Sintra, Património Mundial - Leite, Ana Filipa Rodrigues Moreira
The Cultural Landscape of Sintra, classified in 1995 by UNESCO as World Heritage Site, is the testimony
of a unique symbiosis between Nature and Man.
The specific microclimate and lush vegetation gives to Serra de Sintra the bucolic spirit that promoted,
since long times, its occupation by different cultures: From Neolithic vestiges to the medieval Suntria;
convents and hermitages scattered throughout the solitude of the Sierra, the establishment of the royal
court and nobles in their recreational farms, harmoniously arranged amidst the massive granite blocks and
the lush vegetation brought from various parts of the world. The Landscape of Sintra was built under
artistic and literary influences,...
Avaliação do desempenho do camarão Litopenaeus vannamei e das macroalgas Gracilaria birdiae e Ulva fasciata num sistema de cultivo multitrófico integrado - Raposo, Diogo Manuel Trindade
The aquaculture is growing fast, responding to the increase of aquatic products demand. This growth requires sustainable practices. Taking advantages from the complementary functions of the organisms in the ecosystem, the bioremediation technology Integrated Multitrophic Aquaculture proposes to balance the abundance of organisms, avoiding the instability caused by the massive introduction of fed aquaculture. In this study, developed in the Rio Grande do Norte State (Brazil), juvenile shrimps Litopenaeus vannamei (2,78 g ± 0,29 initial weight) and seaweeds were co-cultured in exterior tanks (100 L), during four weeks. Three treatments were evaluated: shrimp monoculture, co-culture with Gracilaria birdiae e co-culture...
Desenvolvimento de um modelo sistematizado de investigação, desenvolvimento e inovação - Vinagre, Carla Sofia Teles da Silva
This essay was based on the increasing importance of change and innovation, trying to understand the necessities of the market, the clients and the companies.
It was analyzed a model of IDI that was already used by the company Consulai for the creation of new products and services, in order to realize if it was updated and witch improvements were necessary to implement.
We developed a new conception and development model for new products and services, betting on a bigger research of information by the company employees before they validate any phase of the project.
Within this model, two new documents were created:...
Propriedades reológicas e de estabilização de emulsões do FucoPol - Bastos, Elsa de Fátima Soares da Silva
In this work, were studied the rheological properties in aqueous solution, namely the thickening ability and the ability of stabilizing oil in water emulsions, of an extracellular polysaccharide produced by the bacterial strain Enterobacter A47 from glycerol. Several studies were carried out, that enabled to evaluate the rheological behavior of the biopolymer under a wide range of pH and ionic strength vallues, as well asto obtain optimum conditions for the formation of stable sunflower oil/water emulsions.
It was observed that the biopolymer aqueous solutions have a non-Newtonian shear thinning behavior. By studying the thickening ability, it has been demonstrated that increasing...
Monitorização da solução nutritiva na cultura da roseira em fibra de coco - Matos, Filipe Daniel da Silva
We studied how fertigation of cut-roses affects coconut fiber over the time roses are installed in this culture medium. Coconut fiber, being an organic substrate, has a cation exchange complex, and is likely to undergo changes in its composition. To this end, samples were taken from the nutrient solution, coconut fiber and the drainage solution, a total of five modalities of a variety and another 2 of other variety for comparison. Later, laboratory analyzes were performed to determine the pH, electrical conductivity and key nutrients of those samples, and analyzes of variance to investigate the differences between modalities. The results...
Medições do teor de oxigénio em diferentes fases da produção de vinhos - Coutinho, João Falcato Dias
Due to the major interest in oxygen-wine interaction by winemakers, it seemed of the most utility to monitorize the contents of dissolved oxygen since the fermentation till the bottling in both white and red wines. The aim was to identify which processes were responsible for the greatest incorporation of dissolved oxygen, in order to minimize undesirable oxidation.
This study was performed in Adega Cooperativa de Redondo, Alentejo, Portugal.
The wine’s dissolved oxygen measurements were carried out using the Luminescent Dissolved Oxygen method (LDO). This method is based on the luminescence of a polymer. It is a method that is free from calibration,...
Produção de gerbera em estufa para flor cortada - Rocha, Laura Fernanda de Lima
The Floragri- Floricultura e Agriculturax is a cut flower production of gerbera hybrid in a 2.5ha’s greenhouse. It has a good technological level and I’ve been doing there an internship for 9 months.
This work describes some of my activities, such as monitoring the plantation, controlling the irrigation and fertilization systems, the introduction of the beneficial fauna, the chemical treatments and the quality control during the harvesting.
The main cultural operations have been selected - the cultivars selection, the installation system, the plantation, the irrigation and fertilization, the most important pests and diseases and the harvesting and post-harvesting.
Using the bibliography it’s described...
Compostagem de resíduos sólidos urbanos e avaliação da qualidade dos produtos obtidos - caso de estudo Amarsul S.A. - Sequeira, Liliana Lopes
The composting has proven a good alternative in the management, treatment and valorization of municipal solid waste. Depending on the raw materials used for its production, the product may be considered organic fertilizer/corrective to be used in agriculture activities.
The present work was developed aiming the evaluation of the MSW composting evolution, by the determination of physical, physical-chemical and biological parameters, in biomass collected along the process, as well as the assessment of stability/maturation degree of the final compost. For each collected sample it was also introduced two different types of biodegradable/compostable plastics, each sample corresponding to a particular phase of...
O registo e planeamento da paisagem depois de grandes catástrofes naturais - Pinto, Mariana Soares Rebelo Paes
The following research project intends to address issues related to natural disasters and the risks in over populated urban areas, as well as in agriculture and forestry areas of the coastal landscape. It compares the consequences and post disaster planning in the affected regions, as well as the lessons that it brings to the population and plans for their future cities and landscapes. In particular, it addresses the case of the great Lisbon earthquake of 1755 and the changes that emerged after the disaster. A contrast between the process of planning Lisbon and London after the fire of 1666, is...
Novos espaços em aberto. Estudo comparativo: Aeroporto de Lisboa e Tempelhof - Murteira, Marta Ribeiro
The existence of large public parks in cities has always been a fact that followed the
history of the growth of various cities. Their social, cultural, ecological and economic
benefits have been recognized for many centuries and over time took different forms of
organization and expression within the city.
The abandonment of certain sites and their condition as new open spaces in the city
emerges as an opportunity to convert a space with a specific function, in a green public
park that serves its surrounding population and supports the expression of urban
ecological structure. The opportunity to take an area without expression and to supply it
Caracterização agronómica e fitoquímica de seis espécies silvestres de Rubus L. - Trindade, Pedro Miguel Fernandes Vieira
The interest in exploring the European wild blackberries, resulting of the high potential for health, has led the researchers to consider possible introductions of this germplasm in breeding programmes. As Portugal has a large number of these species, trials have been conducted in order to characterize agronomic, quality and phytochemical traits of some of this material. On the first trial, the agronomic characterization, only two R. henriquesii and R. sampaioanus showed acceptable vegetative and productive characteristics. The cold trial produced significantly different percentages of bud break in tertiary canes and caused an effect of earliness, showing higher production. In the...
Alimentos alternativos na alimentação animal. A cenoura de refugo e a sua utilização pelo coelho - Alves, Ricardo Jorge Pissarro da Maia
The effect of the incorporation of dried carrot in rabbit diets with two levels of NDF (37% vs 30%) since early weaning at 21 days and up to 63 days of age was studied. For this 4 different regimes with different combinations of fiber and carrot were used. Zootechnical results, dry matter digestibility, caecal fermentation, and development of the digestive tract was accessed for all regimes. In the zootechnical experiment 21 days old 48 rabbits were used. They were divided in four groups each one being fed with a different regime: two with a 37% NDF content (with and without...
Análise do perfil de ácidos gordos de camarinha, Palaemonetes varians - Encarnação, Rui Jorge Junqueiro
One of the benefits associated with the consumption of fishery products is their fatty acid composition. In this dissertation we analyze the fatty acids profile of Atlantic ditch shrimp Palaemonetes varians, determined by gas chromatography. For this, 16 samples were collected in the Sado estuary area and examined.
This study identified the majority of the P. varians fatty acids. In terms of highest quantity, we had the palmitic acid in SFA group, the oleic acid in MUFA and finally EPA in PUFA. Higher n-3/n-6 and PUFA/SFA ratios were also noticed. Related outcomes were found in studies associated to several other species...
Contributos para uma proposta de ordenamento de base ecológica do Concelho de Góis - Rodrigues, Tiago Filipe Barata
This study arises from the desire to understand the factors that led to the foundation of urban areas and understand how the terrain morphology influenced their growth and development. In order to do this, it starts up firstly by making a historical framing of the various times that influenced the foundation of urban agglomerations in the world and more specifically, Portugal.
Then, it will present a short historical retrospective on the study area, addressing the most important events, as well as an ecological interpretation and integrated planning, with the aim of preparing the Fundamental Ecological Structure. Subsequently, it is designed to...
Modelação bidimensional de habitats fluviais para espécies piscícolas. Aplicação do Modelo CasimirFish2D - Dias, Verónica Raquel Barroso
Habitat degradation associated with river regulation, consequence increasing human demands on water resources, and result is changed richness and diversity fish species. Projects ecological habitat to improve becomes a priority for authorities in many countries.
In the present study, a methodology based on the relationship between fish habitat and stream flows, is applied in order to determine impact the regulate flows to species. A new approach based on fuzzy sets and rules, linguistic rules describe the imprecise information which often characterizing ecological data and enable implementing the interactions between physical variables. The habitat selection of several species can be predicted adequately...
O risco de inundação urbana nas frentes de água de deltas e estuários em cenários de alterações climáticas. A frente ribeirinha de Lisboa - Oliveira, Diamantino Figueiredo Rodrigues de
The present climate changes constitute one of the main threats to delta and estuary cities. The
rise of the mean sea level and the increase of the intensity and frequency of the precipitation
extremes are presently raising the flood risk of these territories, jeopardizing their maintenance
and future development. The present work focuses on how these climate change processes can
raise the risk of the urban drainage flooding events at the cities waterfronts. The relevance of the
problem is reinforced by the present incapacity of the urban drainage systems to follow the
needed adaptation, forcing the delta and estuary cities to rethink the management of their...
Lisboa e o Tejo. Relações e contradições - Sarná, Matteo
Reflecting the general history of Lisbon, the text shows the relations and the importance which the river Tagus had on the development of the Lisbon society in an urbanistic sense as well as in a social and cultural sense.
It will be shown that the disappearance of many public areas in Lisbon where people could get together, like squares, markets and walkways happened at the same time as also the view and the contact withe the river Tagus got and more reduced, all due to constructions which grew along the river banks in the name of the modernization of the country.
Study of Brassica rapa core collection for morphological traits, self-incompatibility, interspecific hybridization and Xanthomonas campestris PV. campestris disease resistance - Leonardo, Tiago Miguel Santos
Rijk Zwaan Brassica rapa Gene Bank Collection, comprising 137 accessions representing different morphortypes, was studied and evaluated for morphological traits and self incompatibility, interspecific hybridization and Xanthomonas campestris pv. campestris disease resistance.
In order to distinguish different morphotypes, leaf and seed pod traits were measured and analized. Only the leaf traits contribute to distinguish between the morphotypes.
Recurring to open flowers pollination, self incompatibility was scored through two different methods: assessment of pollen ingrowth and seed counting. Through the assessment of pollen tube ingrowth was concluded that the majority of accessions are self incompatible or moderately self incompatible. Although seed counting does...