Hybrid Prototypes to Assist Modeling Automotive Seats

The development of new modular seats is an important issue in the automotive industry. However, is very time consuming and costly. Virtual models and hybrid prototypes could accelerate the car seats development process. The hybrid prototypes are mainly manufactured by rapid prototyping with multi materials. The objective of this paper is to establish a methodology to develop innovative lightweight multi-functional, modular car seats to be used in Multi-Purpose Vehicles (MPV), by means of FEA simulation and rapid prototyping additive/subtractive technologies utilizing multi materials. A case study is presented to validate the developed methodology. The manufactured hybrid prototype’s reproduces the main functionalities of the MPV modular seat, namely its three key positions: normal, stored and table.Mechanical Engineerin

Data-driven disaster management in a smart city

Disasters, both natural and man-made, are extreme and complex events with consequences that translate into a loss of life and/or destruction of properties. The advances in IT and Big Data analysis represent an opportunity for the development of resilient environments once the application of analytical methods allows extracting information from a significant amount of data, optimizing the decision-making processes. This research aims to apply the CRISP-DM methodology to extract information about incidents that occurred in the city of Lisbon with emphasis on occurrences that affected buildings, constituting a tool to assist in the management of the city. Through this research, it was verified that there are temporal and spatial patterns of occurrences that affected the city of Lisbon, with some types of occurrences having a higher incidence in certain periods of the year, such as floods and collapses that occur when there are high levels of precipitation. On the other hand, it was verified that the downtown area of the city is the area most affected by occurrences. Finally, machine learning models were applied to the data and the predictive model Random Forest obtained the best result with an accuracy of 58%.info:eu-repo/semantics/publishedVersio

Remote Monitor System for Alzheimer disease

Health Remote Monitoring Systems (HRMS) offer the ability to address health-care human resource concerns. In developing nations, where pervasive mobile networks and device access are linking people like never before, HRMS are of special relevance. A fundamental aim of this research work is the realization of technological-based solution to triage and follow-up people living with dementias so as to reduce pressure on busy staff while doing this from home so as to avoid all unnecessary visits to hospital facilities, increasingly perceived as dangerous due to COVID-19 but also raising nosocomial infections, raising alerts for abnormal values. Sensing approaches are complemented by advanced predictive models based on Machine Learning (ML) and Artificial Intelligence (AI), thus being able to explore novel ways of demonstrating patient-centered predictive measures. Low-cost IoT devices composing a network of sensors and actuators aggregated to create a digital experience that will be used and exposure to people to simultaneously conduct several tests and obtain health data that can allow screening of early onset dementia and to aid in the follow-up of selected cases. The best ML for predicting AD was logistic regression with an accuracy of 86.9%. This application as demonstrated to be essential for caregivers once they can monitor multiple patients in real-time and actuate when abnormal values occur.info:eu-repo/semantics/acceptedVersio

Editorial

This being my first editorial after March elections, I think it is important to share and reflect on the main guidelines that will conduct the action of the new Management. First of all, a word of appreciation to all previous Directorates for their work in favor of the Portuguese Radiology, gradually increasing its external visibility and always maintaining a particular emphasis on the continuous training of Radiologists. Migrating contents to online platforms is a worldwide trend that we will have to follow. The Society has on file a large source of papers presented at high quality Congresses and Meetings, which will be available in the Members area for consultation. The Radiological Act will maintain its important role as a vehicle for the dissemination of the national scientific production and its indexation is in progress. The Society School has played a key role in the training of residents and it will be maintained. Given its great success we will seek to broaden its scope to allow Experts to take advantage of this as well. We will maintain the organization of all the usual Courses and Congresses, as well as the existing partnerships with similar Scientific Societies. Training residents will also be fundamental in our line of action. The Portuguese Society of Radiology and Nuclear Medicine, despite being a society of a scientific nature, cannot ignore the “non-scientific” problems that affect Radiologists, namely in terms of their professional practice and will continue to support and organize discussion forums where these issues can be debated and discussed. To achieve these goals we need everyone's collaboration! Please send suggestions and/or criticism to the Society on how we can improve our action. At a time when our specialty is the target of multiple attacks from many different directions, we will only be able to prevail if we remain united and focused on our goals.Sendo este o meu primeiro editorial após as eleições de Março passado acho importante partilhar e refletir sobre as principais linhas mestras que irão balizar a ação da nova Direção. Mas antes uma palavra de apreço a todas as Direções anteriores pelo seu trabalho em prol da Radiologia Portuguesa, aumentando de modo gradual a sua visibilidade externa e mantendo sempre uma particular ênfase na formação contínua dos Radiologistas. A migração de conteúdos para plataformas online é uma tendência mundial que teremos de acompanhar. A Sociedade dispõe em arquivo de um grande manancial de trabalhos apresentados nos Congressos e Reuniões de elevada qualidade e que irá disponibilizar na área reservada aos Sócios para consulta. A Acta Radiológica irá manter o seu importante papel como veículo de disseminação da produção científica nacional e está em curso a sua indexação. A Escola da Sociedade tem tido um papel fundamental na formação dos Internos e irá ser mantida. Dado o seu grande sucesso procuraremos alargar o seu âmbito de modo a permitir aos Especialistas que também possam usufruir dela. Iremos manter a organização de todos os Cursos e Congressos habituais, bem como as parcerias vigentes com as Sociedades Científicas congéneres. A formação dos Internos também será um ponto fundamental da nossa ação. A Sociedade Portuguesa de Radiologia e Medicina Nuclear, apesar de ser uma sociedade de índole científica não se pode alhear dos problemas “não científicos” que afetam os Radiologistas, nomeadamente a nível do seu exercício profissional pelo que continuará a apoiar e organizar fóruns de discussão em que esses assuntos possam ser debatidos e discutidos. Para conseguirmos alcançar estes objetivos precisamos da colaboração de todos! Façam por favor chegar sugestões e / ou críticas à Sociedade acerca do modo como poderemos melhorar a nossa ação. Nesta altura em que a nossa Especialidade é alvo de múltiplos ataques das mais variadas direções apenas conseguiremos prevalecer se nos mantivermos unidos e focados nos nossos objetivos

Caso Clínico ARP Nº 3: Não Compactação Ventricular e Enfarte do Ventrículo Esquerdo

Paciente do sexo masculino, de 45 anos de idade, com antecedentes de patologia cardíaca e alterações em ecocardiograma para estudo.São apresentadas quatro imagens, uma “steady-state-freeprecession”no plano 4 câmaras e três imagens de realce tardio, no eixo curto, 4 câmaras e eixo longo vertical.Na imagem 1 (“steady-state-free-precession” no plano 4 câmaras ou eixo longo horizontal em diástole) observa-se acentuação da trabeculação nos segmentos médio-apicais da parede lateral e do ápex (segmento 17) do ventrículo esquerdo, com razão entre a camada não compactada superior a 2,3. Identifica-se ainda acentuação da trabeculação na parede livre do ventrículo direito.Nas imagens de realce tardio identifica-se realce tardio transmural nos segmentos médios anterior, antero-lateral e antero-septal, apicais anterior e inferior e ápex.Estes achados são compatíveis com não compactação ventricular e enfarte do ventrículo esquerdo

Caso Clínico ARP Nº3: Qual o seu Diagnóstico?

Paciente do sexo masculino, com 45 anos de idade, com antecedentes de patologia cardíaca e alterações em ecocardiograma para estudo.Pedido R

Transcriptomics in ecotoxicology

The emergence of analytical tools for high-throughput screening of biomolecules has revolutionized the way in which toxicologists explore the impact of chemicals or other stressors on organisms. One of the most developed and routinely applied high-throughput analysis approaches is transcriptomics, also often referred to as gene expression profiling. The transcriptome represents all RNA molecules, including the messenger RNA (mRNA), which constitutes the building blocks for translating DNA into amino acids to form proteins. The entirety of mRNA is a mirror of the genes that are actively expressed in a cell or an organism at a given time. This in turn allows one to deduce how organisms respond to changes in the external environment. In this article we explore how transcriptomics is currently applied in ecotoxicology and highlight challenges and trends

Data fusion and visualization towards city disaster management: Lisbon case study

INTRODUCTION: Due to the high level of unpredictability and the complexity of the information requirements, disaster management operations are information demanding. Emergency response planners should organize response operations efficiently and assign rescue teams to particular catastrophe areas with a high possibility of surviving. Making decisions becomes more difficult when the information provided is heterogeneous, out of date, and often fragmented. OBJECTIVES: In this research work a data fusion of different information sources and a data visualization process was applied to provide a big picture about the disruptive events in a city. This high-level knowledge is important for emergency management authorities. This holistic process for managing, processing, and analysing the seven Vs (Volume, Velocity, Variety, Variability, Veracity, Visualization, and Value) in order to generate actionable insights for disaster management. METHODS: A CRISP-DM methodology over smart city-data was applied. The fusion approach was introduced to merge different data sources. RESULTS: A set of visual tools in dashboards were produced to support the city municipality management process. Visualization of big picture based on different data available is the proposed work. CONCLUSION: Through this research, it was verified that there are temporal and spatial patterns of occurrences that affected the city of Lisbon, with some types of occurrences having a higher incidence in certain periods of the year, such as floods and collapses that occur when there are high levels of precipitation. On the other hand, it was verified that the downtown area of the city is the most affected area.info:eu-repo/semantics/publishedVersio

Sistemas inteligentes no suporte à tomada de decisão: Que desafios? … mas também oportunidades!

A evolução constante das tecnologias digitais está a transformar profundamente a economia e a sociedade, abrindo perspetivas de um mundo mais interconectado e inteligente: um mundo onde emergem novas formas de relacionamento entre as organizações e respetivos modelos de negócio, no interior das organizações, entre produtores e consumidores, e entre o homem e a máquina. Com o aparecimento dos computadores no séc. XX, surgiu uma questão importante, analisada quer do ponto vista filosófico quer do ponto vista prático: Poderá um computador comportar-se, um dia, de forma inteligente, exibindo um comportamento semelhante ao de um ser humano?info:eu-repo/semantics/acceptedVersio

Analytic Plane Wave Solutions for the Quaternionic Potential Step

By using the recent mathematical tools developed in quaternionic differential operator theory, we solve the Schroedinger equation in presence of a quaternionic step potential. The analytic solution for the stationary states allows to explicitly show the qualitative and quantitative differences between this quaternionic quantum dynamical system and its complex counterpart. A brief discussion on reflected and transmitted times, performed by using the stationary phase method, and its implication on the experimental evidence for deviations of standard quantum mechanics is also presented. The analytic solution given in this paper represents a fundamental mathematical tool to find an analytic approximation to the quaternionic barrier problem (up to now solved by numerical method).Comment: 15 pages, 2 figure