The interest in studying droplet related phenomena has been increasing over the last decades.In the fluid dispensing equipment industry, a major problem is to minimize droplet diameter andto eject droplets in a controlled manner with a low-cost device. Taking all this into account, anew low-cost droplet stream generator was designed and fabricated. The material used to man-ufacture the stream droplet generator structure was a 3D printable material, namely PLA, thatminimizes the device cost. This structure has three separate components: piezoelectric lid, fluidchamber, and pinhole holder. The disruptive waves of the disturbance mechanism were applieddirectly to the fluid instead of being applied to the precision pinhole. The interchangeable noz-zle used was a round stainless-steel high precision optical pinhole with three different sizes:100μm,150μm, and200μm. Jet attribute properties (droplet diameter, droplet velocity, anddistance between droplets) were measured as the different conditions changed (piezoelectriccell frequency, outlet pressure, and fluid). The present work studied the spray characteristicsand different monodisperse regimes. A full characterisation of them is presented and discussedin detail.

Adhesively bonded joints have been increasingly applied in primary aerostructures, mainly due to their numerous advantages over riveted or fastened joints. More specifically, bonded T-joints made from carbon fibre reinforced plastics (CFRP) are commonly found as stiffening members (stiffeners, or stringers) on wing panels and fuselage sections. However, aluminium stiffeners can yet be considered a safer and more conservative solution, since composite T-joints face delamination problems that typically initiate at the central noodle of the stiffener - the part where the three arms of the stiffener come together. In order to better comprehend the failure mechanisms and sequence of these joints, Stiffener-Pull- Off Tests (SPOT) were experimentally conducted on a two CFRP adherends (SEAL® Texipreg HS 160 REM) - skin and stiffener - adhesively bonded with a structural film adhesive (EA451 U150). These specimens were fabricated following a novel fabrication plan, which left open the possibility of re-engineering the noodle region with the scope of increasing the through-thickness strength of the bonded joint. This can be achieved by eliminating the problem of the twisted fibres at the noodle that occur during the cure stage when no filler material is used.

Recuperados em 2011, na escavação arqueológica do sítio do Cabeço Redondo (Moura, Beja), cuja cronologia aponta para o século V a.C. A fauna mamalógica é constituída principalmente por espécies domésticas (Bos taurus, Ovis aries/Capra hircus e Sus cf. domesticus). A caça (Cervus elaphus, Lepus sp./Oryctolagus cuniculus e Sus cf. scrofa) surge com muito menor expressão. Os dados apontam para um sítio de características rurais, pelo menos em parte dedicado à exploração agropecuária dos férteis territórios em que se implanta

Abordagem ao percurso arqueológico e académico de Manuel Heleno (1894-1970), uma das principais figuras da Arqueologia portuguesa. O autor apresenta o fio condutor do pensamento e da prática científica e pedagógica que caracterizaram Manuel Heleno, com base em documentação inédita, quando passam quase 50 anos sobre a última lição que este proferiu na Faculdade de Letras da Universidade de Lisboa, em 1964.

Apresentam‑se diversos exemplos de lavras mineiras romanas da Estremadura e do Alto Alentejo, correspondente à vasta área de influência económica directa da poderosa familia dos Cornelii Bocchi as quais, sendo diversificadas quanto à natureza dos productos explorados, são também, nalguns casos, as que melhor se encontram documentadas nas fontes clássicas, provavelmente debido à própria informação devida a Lucius Cornelius Bocchus, depois utilizada por Plínio‑o‑Velho e Solino, entre outros autores latinos.

A Força Aérea (FA) tem vindo a utilizar e a acompanhar a evolução de alguns Sistemas de Informação Geográfica em duas vertentes distintas: gestão patrimonial e planeamento de missão. A divulgação e o interesse por plataformas web de distribuição de informação geográfica (IG) tem sido crescente, como é o caso do Sistema de Informação de Infraestruturas (SIINFRAS). No entanto, os objetivos iniciais desta plataforma não dão total resposta às necessidades atuais da FA. Neste contexto, esta investigação pretende analisar o estado atual do SIINFRAS, as possibilidades de partilha de IG e de interoperabilidade de sistemas de informação e desenvolver uma concetualização de um novo Projeto SIG com recurso a Geospatial Freeware Open Source Software (GFOSS). Os resultados revelam que é viável implementar novas soluções GFOSS na FA, com novas capacidades e trabalhando simultaneamente o seu desenvolvimento numa perspetiva mais sinérgica quanto à utilização de IG dentro da Organização. Abstract: The Portuguese Air Force (PoAF) has been using and monitoring the evolution of some Geographic Information Systems in two different ways: asset management and mission planning. Disclosure and interest in geographic information (GI) distribution web platforms has been growing, as is the case of Infrastructure Information System (SIINFRAS). However, the initial objectives of this platform don’t give full response to current PoAF's needs. In this context, this research aims to analyze the current state of SIINFRAS, the possibilities of sharing GI, interoperability of information systems and develop a conceptualization of a new GIS project using GFOSS (Geospatial Freeware Open Source Software). The results show that it is feasible to implement new GFOSS solutions, with new capabilities and working simultaneously in a more synergistic perspective development on the use of GI within the organization, contributing to a more capable fulfillment in several activities related to infrastructures.

The well-recognized individual heterogeneity within COPD patients has led to a growing interest in greater personalization in the approach of these patients. Thus, the treatable traits strategy has been proposed as a further step towards precision medicine in the management of chronic airway disease, both in stable phase and acute exacerbations. The aim of this paper is to perform a critical review on the treatable traits strategy and propose a guide to approach COPD patients in the light of this new concept. An innovative stepwise approach is proposed - a multidisciplinary model based on two distinct phases, with the potential to be implemented in both primary care and hospital settings. The first phase is the initial and focused assessment of a selected subset of treatable traits, which should be addressed in all COPD patients in both settings (primary care and hospital). As some patients may present with advanced disease at diagnosis or may progress despite this initial treatment requiring a more specialized assessment, they should progress to a second phase, in which a broader approach is recommended. Beyond stable COPD, we explore how the treatable traits strategy may be applied to reduce the risk of future exacerbations and improve the management of COPD exacerbations. Since many treatable traits have already been related to exacerbation risk, the strategy proposed here represents an opportunity to be proactive. Although it still lacks prospective validation, we believe this is the way forward for the future of the COPD approach.

This work aims to establish assertive inventory policies for the raw materials in a Portuguese bakery. The demand behaviour of some items was analysed, using the ABC classification, and 14 main items were prioritised. Using Holt-Winters’ additive method, the demand for these items was forecast until the end of 2023. With these forecast data, the paper presents a simulation and comparison between two different inventory policies, the continuous review model and the periodic review model, and also presents an estimate of current inventory costs. As expected, the periodic review model presented higher inventory costs than the continuous review model, due to the higher safety stocks needed. The results of this paper are a starting point for the company to decide what inventory management method fits better.