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BIM model to support O&M tasks
Get PDF: Technological evolution and BIM have changed the design development process in the construction
industry. The operation and maintenance (O&M) phase requires building information throughout its service life,
which was previously paper based, making it difficult to carry out maintenance activities. BIM assists in the
management, storage, and digital sharing of information generated. However, only part of the information
generated is required for the maintenance phase of the building. Although a subset of the IFC schema already
exists to describe the data exchange between the BIM model and maintenance software, the data are generic and
not well defined according to each the element source of maintenance (ESM). Therefore, through a literature
review of existing studies on the use of BIM to support O&M processes, this paper aims to design an information
flow to integrate maintenance information into the BIM model. The information is based on six main maintenance
acts (inspection, cleaning, proactive measure, correction, replacement, and terms of use) and organized in an
external sheet. The building will be divided into ESM according to its function in the building to facilitate the
maintenance information flow between sheets and the BIM model.info:eu-repo/semantics/publishedVersio
Quartz Powder Valorisation in White Self-Compacting Concrete: Mortar Level Study
Get PDFQuartz powder (QP) from mining exploration has increased, and valorisation solutions are
sought. QP incorporation in structural concrete is an exciting strategy for the growth and sustainable
development of the concrete industry, waste management and environmental protection. This work
addresses the valorisation of QP from a Portuguese company on powder-type self-compacting
concrete for architectural and structural purposes, combining the light colour of quartz with white
cement. As such, QP was used as a partial cement replacement, acting as a filler on self-compacting
white mortars (SCWM) and pastes (SCWP). Firstly, the QP was characterised by chemical, physical
and morphological properties. Afterwards, SCWM with 10% of the white Portland cement with
QP were produced and, with 10% cement replacement by limestone fillers, commercially available,
for comparison purposes. The following engineering properties were evaluated, flowability and
viscosity, electrical resistivity, porosity and mechanical strength. In equivalent pastes samples, the
heat of hydration was accessed. Finally, an architectonic element prototype was produced using
SCWM-QP, and colour and aesthetics were evaluated. All SCWM reached adequate deformability
and viscosity for self-compaction. In the hardened state, compressive strength, electrical resistivity
and water-permeable porosity presented similar results for mortars incorporating quartz powder and
limestone fillers. The isothermal calorimetry in equivalent pastes revealed a slight desacceleration
of hydration for SCWP incorporating QP. The major findings of this study confirm the feasibility of
SCWM with QP, meeting the required performance while reducing resource depletion in the concrete
industry and adding value to a by-product.info:eu-repo/semantics/publishedVersio
Durability in alkaline-activated materials a review on the state of the art
Get PDFThe present work on durability in materials obtained by alkaline activation
(AAM), in state-of-the-art review format, is structured as follows. (I) -The concept of
alkali activated materials-composition-performance; (II) - The prediction of the useful
life of AAM-methodologies and planning; (III) - The durability and properties of
Engineering-mechanical tests-standards of specifications and tests (IV)-Degradation
processes of Chemical Matrix-resistance to sulfates (SO4-²), acids (HCl), (H4²2SO4)
(HNO3), (H3PO4), (HF), (H2CO3) and sea waters; (V) Degradation processes by mass
transport - permeability, porosity, corrosion, carbonation, efflorescence and ice-thawed.info:eu-repo/semantics/publishedVersio
Optimization techniques for mortars with self-compacting characteristics through Central Composite Design
Get PDFThe high demand for concrete in civil construction promotes investment by
researchers and builders to find methodologies that improve performance, costs and
reduced environmental degradation. What justifies the large consumption of
concrete is the possibility of improving its characteristics according to use. Self compacting concrete offers a mixture with high flowability, compaction and good
mechanical properties. Statistics tools can be used for better optimization of
mixtures, such as the Design of Experiments (DoE). Therefore, the objective of this
research was to optimize an experimental dataset of high strength self-compacting
mortars using the Response Surface Methodology (RSM) for a Central Composite
Design (CCD). The results showed a strong correlation between the D-Flow and T funnel response factors, when compared with CS14h and CS28d models. The input
variable w/c was the most significant. Numerical optimization showed good accuracy
and compliance for low cost and environmental impact, maintaining high
performance in fresh and hardened properties.info:eu-repo/semantics/publishedVersio
Concept of an elementary work as introduction to the line integral in engineering studies
Get PDFThe paper is devoted to the line integral topic belonging to the section of vector calculus
in Mathematical Analysis applied to the undergraduate Mechanical Engineering program.
An efficient way of teaching line integrals is proposed and developed based on the elem entary work/force principles. By this way, the mathematical concept of the line integral is
supposed to be learned in harmony with the elementary mechanics to appreciate its
diversity and to set up the right idea about the scientific area covered by Mechanical
Engineering and related academic and technical fields. In terms of practical training,
the research also offers two new techniques of analytical calculus for line integrals con taining singularities and provides a new coherent engineering approach to deal with vec tor fields as integrands in line integrals
A poética (auto) documental de Patricio Guzmán
Get PDFAo mergulhar em 3 filmes de Patricio Guzmán, A Nostalgia da Luz (2010), O
Botão de Nácar (2015) e A Cordilheira dos Sonhos (2019) refletiremos sobre sua forma
de contar a história do Chile e principalmente sua própria história, fazendo com que seus
filmes sejam mais que um álbum de família do Chile, mas um álbum pessoal do cineasta
configurando sua criação como uma espécie de documentário autobiográfico. Nosso
objetivo perpassa pelas análises das imagens trazidas pelo cineasta que serão por nós
estudadas quanto a sua inovação singular que constrói a sua poética trazendo para sua
narrativa elementos que sugerem que seus filmes além de históricos, também são
autobiográficos.By delving into 3 films by Patricio Guzmán, A Nostalgia da Luz (2010), The
Nacar Button (2015) and A Cordilheira dos Sonhos (2019) we will reflect on his way of
telling the history of Chile and especially his own history, making that his films are more
than a Chilean family album, but a personal album of the filmmaker, configuring his
creation as a kind of autobiographical documentary. Our objective goes through the
analysis of the images brought by the filmmaker that will be studied by us in terms of their
unique innovation that builds their poetics, bringing to their narrative elements that
suggest that their films, in addition to being historical, are also autobiographical.info:eu-repo/semantics/publishedVersio
Estudos de investigação entre psicologia da educação e psicologia clínica-narrativa. A eficácia da psicoeducação em gestão da ansiedade junto de estudantes universitários através de uma Plataforma Web-interativa Toolbox
Get PDFA entrada na universidade é uma transição importante na vida do estudante que requer
uma adaptação e que poderá influenciar o sucesso ou o fracasso académico. Quando se
verificam dificuldades na adaptação, devido às inseguranças/incertezas ou à gestão de
emoções desta nova etapa na vida do estudante, poderão desenvolver-se perturbações
psicológicas, nomeadamente de ansiedade e stress. O facto de vivermos atualmente numa
situação de quase pós-pandemia também poderá contribuir para o desenvolvimento de
quadros de ansiedade e/ou para o agravamento dos já existentes. Na tentativa de fazer
face a esta problemática da gestão da ansiedade junto do estudante universitário, surge o
projeto “Toolbox: Estudante Universitário – Plataforma Web-interativa”, uma plataforma
de aprendizagem de gestão de ansiedade. O objetivo principal da presente investigação
consiste em perceber se a utilização da plataforma se revelou eficaz na gestão de
ansiedade junto de estudantes universitários. A amostra é constituída por 31 estudantes
universitários da Universidade da Madeira (UMa) e do Instituto Superior Técnico (IST),
com idades compreendidas entre os 19 e os 47 anos. Os participantes foram distribuídos
em dois grupos: grupo de intervenção (n=17) e grupo de controlo (n=13).
Os resultados mostram que os estudantes sujeitos à intervenção com a plataforma
interativa apresentaram melhorias no seu comprometimento face aos seus estudos e nos
seus níveis de ansiedade no geral.Joining University is an important transition in the student's life that requires adaptation
and can influence academic success or failure. When there are difficulties in adaptation,
due to insecurity/uncertainties or due to the management of emotions of this new stage in
the student's life, psychological disorders, including anxiety and stress, may develop. The
fact that we are currently living in a situation of near post-pandemic conditions may also
contribute to the development of anxiety and/or to the aggravation of existing ones. In an
attempt to address this problem of anxiety management among university students, the
project "Toolbox: University Student – Web-interactive Platform", a platform for learning
anxiety management, emerges. The main objective of this research is to understand
whether the use of the platform has proved effective in managing anxiety among
university students. The sample consists of 31 students from the University of Madeira
(UMa) and the Instituto Superior Técnico (IST), aged between 19 and 47 years. The
participants were divided into two groups: intervention group (n=17) and control group
(n=13).
The results show that the participants who were subjected to the intervention with the
interactive platform showed improvements in their commitment to their studies and in
their anxiety levels in general
Impact of Non-Saccharomyces Yeast Fermentation in Madeira Wine Chemical Composition
Get PDFMadeira wine is produced via spontaneous alcoholic fermentation arrested by ethanol
addition. The increasing demand of the wine market has led to the need to standardize the winemak ing process. This study focuses on identifying the microbiota of indigenous yeasts present during
Madeira wine fermentation and then evaluates the impact of selected indigenous non-Saccharomyces
as pure starter culture (Hanseniaspora uvarum, Starmerella bacillaris, Pichia terricola, Pichia fermentans,
and Pichia kluyveri) in the chemical and phenolic characterization of Madeira wine production. Re sults showed that the polyphenol content of the wines was influenced by yeast species, with higher
levels found in wines produced by Pichia spp. (ranging from 356.85 to 367.68 mg GAE/L in total
polyphenols and 50.52 to 51.50 mg/L in total individual polyphenols through HPLC methods).
Antioxidant potential was higher in wines produced with Hanseniaspora uvarum (133.60 mg Trolox/L)
and Starmerella bacillaris (137.61 mg Trolox/L). Additionally, Starmerella bacillaris stands out due to its
sugar consumption during fermentation (the totality of fructose and 43% of glucose) and 15.80 g/L
of total organic acids compared to 9.23 g/L (on average) for the other yeasts. This knowledge can be
advantageous to standardizing the winemaking process and increasing the bioactive compounds,
resulting in the production of high-quality wines.info:eu-repo/semantics/publishedVersio
Violência doméstica contra as mulheres na Região Autónoma da Madeira
Get PDFEm Portugal a violência doméstica tem vindo a merecer maior atenção por parte dos poderes
políticos, nomeadamente ao nível das políticas públicas que previnem e combatem o fenómeno.
No caso da Região Autónoma da Madeira (RAM) têm sido implementadas diversas estratégias,
regionais e locais, para dar resposta à violência doméstica que se foca, principalmente, na
violência perpetrada contra as mulheres.
O presente trabalho pretende compreender de que forma as políticas públicas na RAM são
eficazes na prevenção e no combate à violência doméstica contra as mulheres. Também se
pretende perceber de que modo essas políticas se configuram como recomendações efetivas
para a mudança/melhoria das políticas públicas e o aumento da consciencialização para esta
problemática de todos/as os/as intervenientes.
A metodologia adotada para a presente investigação é o estudo de caso, tendo-se optado por
combinar instrumentos qualitativos, isto é, entrevistas semiestruturadas e inquéritos por
questionário e, tendo-se, posteriormente, procedido à análise documental. Neste sentido,
foram entrevistadas: 22 pessoas (onze responsáveis dos municípios, seis das estruturas de apoio
à vítima, cinco vítimas de violência doméstica) e quatro entidades da Rede Regional Contra a
Violência Doméstica. Foram, ainda, analisadas as notícias publicadas, entre 2021 e 2022, num
jornal regional, que continham a expressão “violência doméstica”.
Este estudo evidencia que, apesar do percurso trilhado e das conquistas alcançadas na RAM,
especialmente desde 2009, com o desenho e implementação do I Plano Regional Contra a
Violência Doméstica (PRCVD), ainda persiste a necessidade de implementar e/ou melhorar
respostas para prevenir e combater a violência doméstica, tanto a nível regional como local.
Neste contexto, foram produzidas recomendações dirigidas a vários sectores/entidades, tendo
em vista prevenir e combater este flagelo que coloca em causa a dignidade da pessoa humana
e a vida em sociedade.In Portugal, domestic violence has been receiving increasing attention from political powers,
particularly at the level of public policies that prevent and combat the phenomenon. In the case
of the Autonomous Region of Madeira (RAM), several regional and local strategies have been
implemented to respond to domestic violence, focusing mainly on violence against women.
This study aims to understand how public policies in RAM, regional and local, are effective in
preventing and combating domestic violence against women. It is also intended to understand
how these policies are configured as effective recommendations for changing/improving public
policies and increasing awareness of this problem of all stakeholders.
The methodology adopted for this investigation is the case study, having chosen to combine
qualitative instruments, that is, semi-structured interviews and surveys and, subsequently, the
documentary analysis. In this sense, 22 people were interviewed (eleven heads of municipalities,
six of the victim support structures, five victims of domestic violence) and four entities of the
Regional Network Against Domestic Violence. The news published between 2021 and 2022 in a
regional newspaper, which contained the expression “domestic violence”, were also analyzed.
This study shows that, despite the path taken and the achievements accomplished in RAM,
especially since 2009, with the design and implementation of the First Regional Plan Against
Domestic Violence (PRCVD), there is still a need to implement and/or improve social responses
to prevent and combat domestic violence, both at regional and local levels. In this context,
recommendations have been made to various sectors/entities with a view to preventing and
combating this scourge that jeopardizes the dignity of the human person and life in society.info:eu-repo/semantics/publishedVersio
The vitality of “amecê” in the municipality of Machico (Madeira)
Get PDFEm dois momentos (um primeiro geral ou de contextualização e um
segundo com dados de um inquérito circunscrito), pretendemos abordar uma
forma de tratamento que está a ser cada vez menos usada, no século XXI, quando
parece ter tido, no passado, grande vitalidade, no arquipélago madeirense.
Trata-se de “amecê” que se ouvia correntemente na ilha da Madeira. Foi atestada
em ambiente familiar no concelho de Machico, aqui em estudo, há vinte e cinco
anos, em usos comuns no diálogo com idosos, num nível de língua popular e
coloquial. Qual a sua etimologia? Que signiªcação e usos continua a ter?: In two parts (the ªrst one, a contextualization, is general and a sec ond is a questionnaire with speciªc data), we intend to approach a form that is
being less used in the 21st century, when it seems to have had great vitality in the
Madeiran archipelago in the past. It is the word “amecê” that was currently heard
in the island of Madeira in the past. It was attested in a family environment in
the municipality of Machico, here under study, twenty-ªve years ago, in common
uses in dialogue with the elderly, at a level of popular and colloquial language.
What’s its etymology? What meaning and uses it continues to have?info:eu-repo/semantics/publishedVersio