1,720,966 research outputs found
Reflexão sobre a estrutura como forma arquitectónica: Los Manantiales de Félix Candela
Full text linkOrientação: Isabel Clara Neves da Rocha MarquesNo meio natural, a estrutura é considerada como o corpo rígido que permite a sustentação e definição da forma. Por sua vez na arquitectura, apesar do processo construtivo por vezes ser separado entre o arquitecto e o engenheiro, o processo de design formal é simultaneamente um processo de design estrutural. Por outras palavras, a concepção estrutural surge como indissociável da concepção formal.
Atualmente, nota-se um aumento no interesse dos arquitetos contemporâneos pela otimização estrutural dos projetos. Com base nesse interesse, a dissertação foca-se na relação entre a estrutura e a forma, e como essa confluência é depois representada no meio arquitetônico. Visto isso, o tema de interesse foi abordado através da análise num conjunto de sistemas de forma ou superfície-ativa que representam exemplos práticos dessa relação na arquitetura.
Deste modo, a temática do trabalho desenvolve análises da relação entre a estrutura e forma em diferentes contextos, enquanto os sistemas estruturais de forma ou superfície-ativa são estudados através do caso de estudo do restaurante Los Manantiales de Félix Candela.
Como conclusão desta dissertação sugere-se que sistemas que unem a estrutura à forma respondem a um conjunto de questões da sociedade contemporânea, permitindo assim a redução do uso materiais impactantes no ambiente, a criação de espaços adaptáveis, o desenvolvimento de construções rápidas e económicas, e ainda, a conceção de formas visualmente interessantes.
Palavras-chave: Estrutura, Sistema de Superfície-ativa, Restaurante Los Manantiales, Félix CandelaIn the environment, structure is considered to be the rigid body that supports and defines the form. Hence, although the construction work is often divided between the architect and the engineer, the process of designing a form is simultaneously structural design. In other words, structural design is inseparable from shape design.
At the moment, there is an increased interest towards structural optimization by contemporary architects. Due to this interest, this dissertation focuses on the relationship between structure and form, as well as how this confluence is represented in the building environment. In order to address this topic, the dissertation centers around form and surface-active shapes because they represent the intersection between structure and form in architecture.
Therefore, this dissertation analyzes the relationship between structure and form through different contexts, while the subject of form-ative shapes is primarily addressed through examples, and an analysis of the Restaurant Los Manantiales made by Félix Candela.
At the end of this work, it is suggested that systems that merge the structure with the form development provide a range of benefits for the contemporary society, as they help to reduce the use of harmful material in the environment, allow for the creation of adaptable spaces, the manufacture of fast and economic constructions, and also, the design of visually interesting shapes.
Keywords: Structure, Surface-active Structures,
Restaurant Los Manantiales, Félix Candel
Patologias em edifícios antigos: reabilitação da Universidade Lusófona do Porto
Full text linkOrientação: Isabel Clara Neves da Rocha Marques ; coorientação: João Carlos Martins Lopes dos SantosAs patologias são anomalias que surgem numa construção ao longo da vida,
sendo essencial que seja feita uma manutenção durante a existência da mesma.
Nesta dissertação procuram-se estudar as patologias em edifícios antigos, cuja
construção data entre o século XIX e o século XX. Vão ser estudadas as patologias
compreendidas nos casos de estudo e as suas possíveis causas. São ainda
apresentados métodos de diagnóstico que poderão ser utilizados.
Nos três edifícios estudados, é feito um enquadramento histórico e uma análise
detalhada das patologias. Na reabilitação da Universidade Lusófona do Porto é também
apresentada a proposta do projeto de reabilitação, que está inserida nos anexos.
Por fim, comparam-se as patologias dos três edifícios e as causas das mesmas.
Palavras-Chave: Patologias em edifícios; Patologias do Mercado do Bolhão; Patologias
da Casa-Estúdio Carlos Relvas; Técnicas de Diagnóstico; Patologias da Universidade
Lusófona do PortoPathologies are anomalies that arise in a construction throughout its life, and it is
essential that maintenance is carried out during its existence.
This dissertation seeks to study the pathologies in old buildings, whose
construction dates between the 19th and 20th centuries. There will be studied
pathologies included in the case studies and its possible causes. Diagnostic methods
that can be used are also presented.
In the three studied buildings, a historical framework and a detailed analysis of
the pathologies are made. In the rehabilitation of the Universidade Lusófona of Porto,
the proposal for the rehabilitation project is also presented, which is included in the
annexes.
Finally, a comparison is made of the pathologies of the three buildings and their
causes.
Keywords: Pathologies in buildings; Pathologies of the Bolhão Market; Pathologies of
the Carlos Relvas House-Studio; Diagnostic Techniques; Pathologies from the
Lusófona University of Port
A qualidade do ar e o conforto térmico na reabilitação de edifícios
Full text linkOrientação: Isabel Clara Neves da Rocha Marques ; coorientação: João Carlos Martins Lopes dos SantosA adaptação de um edifício antigo às necessidades atuais nunca é tarefa simples a um arquiteto. A introdução de infraestruturas para atender à necessidade de renovação de ar e de garantia de conforto térmico em construções concebidas sem estas funções são um grande desafio, uma vez que as condutas necessárias para passagem de ar renovado e condicionado tem grandes dimensões, e estes imóveis não possuem previsão de local para sua instalação, o que leva a acender o problema de como fazê-lo de modo a minimizar seu impacto na pré-existência.
Assim, o presente trabalho terá como fim o estudo sobre a introdução de elementos capazes de garantir a boa qualidade do ar interior e o conforto térmico na restauração de edificações antigas, mais precisamente no caso prático do projeto proposto para a cadeira de Projeto 5, do quinto ano do curso de mestrado integrado em arquitetura da Universidade Lusófona do Porto, cujo objeto é a reabilitação do principal campus universitário desta mesma instituição e seu anexo.
Palavras-Chave:
Qualidade do ar, AVAC, restauro, renovação, edifício antigo, arquitetura, conforto térmico, ar-condicionado, UTAThe adaptation of
an old building to today’s needs is never an easy task for a n architect . The
introduction of infrastructures to attend the necessity to air renovation and to guarantee thermal
comfort in constructions that were not conceived with this functions are a great challenge, since
the ducts that are necessary for the passage of air threated and condition ed are of great
dimensions, and these buildings do not have a previous plan for the passage and installation
of such, which brings the problem of how to do it in ways to minimize it’s impact in the
preexistence
Therefore, the present work
is developed as an study of the introduction of elements capable
to grant good air quality an thermal comfort in the restauration of old buildings, more precisely
in the practical case of the matter of Project 5, of the fifth year of integrated master’s degree in
architecture of the Universidade Lusófona do Porto, which object is the rehabilitation of the
main campus of this same university and it’s appendix.
Keywords:
Air quality, HVAC, restauration, renovation, old buildings,
architecture , thermal comfort , air
conditioning, ATU
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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