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2019
Ferrás, L. L., M. L. Morgado, M. Rebelo, R. T. Leiva, A. Castelo, G. H. Mckinley, and A. M. Afonso. "Recent Advances in Complex Fluids Modeling." Fluid Flow Problems. 2019.
Moniz, António Brandão Research and Development, Innovation and Industrial Integration in Portugal: a success story?. Session plénière solennelle: Recherche-développement, innovation technologique et industrialisation. Rabat: Académie Hassan II des Sciences et Techniques, 2019. Abstract

In recent years, statistical data revealed a strong dynamism in terms of Research and Development (R&D) growth, of development of innovation structures and emergence of programs, and a growth in terms of industrial integration. However, the political and financial changes from 2007 at the global level revealed as well how fragile are these
outcomes in terms of sustainable development strategy, and how far dependent are from the external markets and political structures. Based on the available information and data, we will present the changes observed in recent years, and understand how the industrial integration can be achieved with clear linkages to the national innovation system and the importance of R&D policy to structure the articulation between innovation and the economic market. The challenges and potential problems can be anticipated if the social implications are also present on the policy options, and if clear technology assessment procedures are taken. When this does not occur, the probability of endogenization of innovation and R&D will become problematic. For these reasons it can be difficult to talk
about a “success story” when all these elements are not considered as a whole and are only seen through very specific angles and with very specialized approaches.

Almeida, André, António Ramos, Rui Marreiros, Válter Lúcio, and Ricardo Faria. "Resposta da ligação pilar-laje fungiforme sujeitas a ações horizontais cíclicas reforçadas com estribos." Revista Portuguesa de Engenharia de Estruturas. Série III.9 (2019): 67-74.
Baumann, Manuel, Marcel Weil, Jens Peters, António Brandão Moniz, and Nelson C. Martins. "A review of multi-criteria decision making approaches for evaluating energy storage systems for grid applications." Renewable and Sustainable Energy Reviews. 107.June (2019): 516-534. AbstractWebsite

Energy storage systems (ESS) are seen as one of the main pillars for a renewable-based energy system. Selecting the most suitable and sustainable ESS for a given project is a problem that involves multiple stakeholders with quite often diverging objectives that cannot all be fulfilled by a single technology. Several studies are available that tackle this problem applying multi-criteria decision analysis (MCDA). However, these use very different Multi-Attribute Decision Making (MADM) approaches, criteria and goals for decision support, why their results are difficult to compare or to reproduce. This work presents a review of existing MCDA-literature using MADM as a tool for sustainability evaluation of grid-tied ESS. Available studies are summarized, the goals, used MADM methods, and quantification of criteria are analyzed and discussed to provide tentative recommendations. The reviewed studies cover multiple technologies ranging from electrochemical, mechanical or electric ESS. Considered criteria are mainly structured around technology, economy, society, and environment, comprising a high number of individual sub-criteria. The aggregation of these criteria is mainly realized through the Analytic Hierarchy Process (AHP) in combination with a wide set of other methods. The quantification of various criteria is often based on different literature sources wherein context-free data for cost, and environmental impacts are used, leading in some cases to inconsistent comparisons in the assessments. Only in a few cases, assessments are linked to specific application requirements, which are decisive factors for the design of an ESS. A minority of the reviewed works include a representative set of decision-makers in their approaches, wherein the number or type of participants is often not communicated transparently. Therefore, most of the studies are considered to have a limited orientation towards practical decision making, but they provide valuable information regarding MADM method development.

Ribau, A. M., L. Ferrás, M. L. Morgado, M. Rebelo, and A. Afonso. "Semi-Analytical Solutions for the Poiseuille-Couette Flow of a Generalised Phan-Thien-Tanner Fluid." Fluids . 2.3 (2019).
Bedon, Chiara, Dániel Honfi, Klára V. Machalická, Martina Eliášová, Miroslav Vokáč, Marcin Kozłowski, Thomas Wüest, Filipe Amarante dos Santos, and Natalie Williams Portal. "Structural characterisation of adaptive facades in Europe - Part II: Validity of conventional experimental testing methods and key issues." Journal of Building Engineering. 25 (2019).
Bedon, Chiara, Dániel Honfi, Klára V. Machalická, Martina Eliášová, Miroslav Vokáč, Marcin Kozłowski, Thomas Wüest, Filipe Amarante dos Santos, and Natalie Williams Portal. "Structural characterisation of adaptive facades in Europe – Part I: Insight on classification rules, performance metrics and design methods." Journal of Building Engineering. 25 (2019).
Pires, Ana, Graca Martinho, Susana Rodrigues, and Maria Isabel Gomes Sustainable Solid Waste Collection and Management: An Integrated Approach. New York: Springer, 2019. AbstractWebsite

This volume focuses on the collection of waste and waste streams as an integral aspect of sustainable waste management. The authors take economic models and behavioral studies into account to go beyond just descriptions of waste collections technologies and collection route design. Models and tools for sustainable waste collection are described in detail, and the authors provide a comprehensive, integrated methodology to design waste collection systems that reduce environmental impacts, are economically viable, and achieve buy-in and participation from target populations.
Part I of the book provides fundamentals and context on waste hierarchy, including waste prevention, reduction and reuse, waste collection itself, and steps such as preparation for recycling, recycling, treatment, and landfilling. Background in environmental, social, and economic concerns surrounding waste collection is also provided here. Part II addresses tools for design, operation, and maintenance of waste collection systems. Part III focuses on how the tools presented in Part II can be used to support sustainability assessments and decisions that consider the entire life cycle of waste and the role of waste collection programs in waste prevention, reduction, reuse, recycling, treatment, and disposal. Part IV addresses the challenges of developing sustainable waste management systems and addresses the role of waste collection in sustainable waste management in the future.

de Melo, João. L. A., Nuno Pereira, Pedro V. Leitão, Nuno Paulino, and João Goes. "A Systematic Design Methodology for Optimization of Sigma-Delta Modulators Based on an Evolutionary Algorithm." IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS–I: REGULAR PAPERS.no. 9 (2019): pp. 3544-3556.
Marques, J. P., M. C. Martins, A. M. Costa, P. Indelicato, F. Parente, and J. P. Santos. "Theoretical determination of K X-ray transition energy and probability values for highly charged (He- through B-like) Nd, Sm, Gd, Dy, Er, and Yb ions." Radiat. Phys. Chem.. 154 (2019): 17-20. Abstract

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Park, J., Y. Lee, P. J. Currie, Y. Kobayashi, E. B. Koppelhus, R. Barsbold, S. Lee, S. Kim, and O. Mateus Three new skulls of the Late Cretaceous armored dinosaur Talarurus plicatospineus Maleev, 1952. Journal of Vertebrate Paleontology, Program and Abstracts., 2019.park_et_al_2019_svp_abstract.pdf
Mulenga, A., M. Faias, P. Mota, and J. P. Pina. "What happens when the stock markets are closed?" Electronic Journal of Applied Statistical Analysis. 12.2 (2019): 405-415. AbstractWebsite

The normality of the log-return of stock prices is often assumed by the market players in order to use some useful results, as for instance, the Black-Scholes formula for pricing European options. However, several studies regarding different indexes have shown that the normality assumption of the returns usually fails.
In this paper we analyse the normality assumption for intra-day and inter-day log-returns, comparing opening prices and/or closing prices for a large number of companies quoted in the Nasdaq Composite index. We use the Pearson's Chi-Square, Kolmogorov-Smirnov, Anderson-Darling, Shapiro-Wilks and Jarque-Bera goodness-of-fit tests to study the normality assumption.
We find that the failure rate in the normality assumption for the log-return of stock prices is not the same for intra-day and inter-day prices, is somewhat test dependent and strongly dependent on some extreme price observations.
To the best of our knowledge, this is the first study on the normality assumption for the log-return of stock prices dealing simultaneously with a large number of companies and normality tests, and at the same time considering various scenarios of intra-day, inter-day prices and data trimming.

Schulp, AS, O. Mateus, M. Polcyn, Gon{\c A. c}alves, and LL Jacobs Angola and its role in the paleobiogeography of Gondwana. Journal of Vertebrate Paleontology, Program and Abstracts., 2019. Abstract
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Marques, Filipe, Frank Coolen, and Tahani Coolen-Maturi. "Approximations for the likelihood ratio statistic for hypothesis testing between two Beta distributions." Journal of Statistical Theory and Practice. 13 (2019): 17. Abstract
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Torabian, Ala, Brisid Isufi, Davood Mostofinejad, and António Pinho Ramos. "Behavior of thin lightly reinforced flat slabs under concentric loading." Engineering Structures. 196 (2019): 109327. AbstractWebsite

The current research aims to study the behavior of thin reinforced concrete (RC) slabs under concentrated loads as well as to investigate the application of Critical Shear Crack Theory (CSCT) to such slabs. For this purpose, four square 100-mm-thick slabs were cast and subjected to concentrated punching monotonic loading. The experimental parameters were the flexural reinforcement ratio, 0.38% and 1.00%, and the presence or absence of shear headed stud reinforcement. It is shown that the failure criteria of CSCT describe reasonably well the observed failure modes and the ultimate loads of the specimens. However, attention is brought to some peculiarities in the analytical derivation of the load-rotation curve for thin lightly reinforced flat slabs, in which large deformations are experienced. Results showed that in such slabs, the behavior can be highly influenced by the post-yield stress-strain curve of the flexural steel reinforcement. As a result, the constitutive law of steel reinforcement should be explicitly taken into account in such cases. The versatility of CSCT to adapt to these conditions is demonstrated.

Teubig, P., P. Remmels, P. Klenze, H. Alvarez-Pol, E. Alves, J. M. Boillos, P. Cabanelas, R. C. da Silva, D. Cortina-Gil, J. Cruz, D. Ferreira, M. Fonseca, D. Galaviz, E. Galiana, R. Gernhäuser, D. González, A. Henriques, A. P. Jesus, H. Luís, J. Machado, L. Peralta, J. Rocha, A. M. Sánchez-Benítez, H. Silva, and P. Velho. "Challenging the Calorimeter CALIFA for FAIR Using High Energetic Photons." Eds. José-Enrique García-Ramos, María V. Andrés, José Lay A. Valera, Antonio M. Moro, and Francisco Pérez-Bernal. Cham: Basic Concepts in Nuclear Physics: Theory, Experiments and Applications, 2019. 245-246. Abstract
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Carl, C., P. Lopes, M. Sá da Costa, G. Canon Falla, S. Leischner, and R. Micaelo. "Comparative study of the effect of long-term ageing on the behaviour of bitumen and mastics with mineral fillers." Construction and Building Materials. 225 (2019): 76-89. AbstractWebsite

This study aims to evaluate the effect of mineral fillers on bitumen ageing. Two different bitumens and four mastics were investigated in the unaged and long-term aged states, based on different properties (consistency, rheology, fatigue resistance and ductility). Mastics stiffened less due to ageing treatment than bitumens, especially with granite filler. However, the results of the performance tests were not definitive regarding the effect of the filler. Aged bitumen showed greater fatigue resistance and higher specific energy of ductile fracture than unaged bitumen, whereas the mastics showed minor variations in the specific energy of ductile fracture with ageing treatment, which is indicative of less ageing, but the fatigue resistance decreased significantly in mastics with one of the bitumens.

Azanza, Moreno M., R. Coimbra, E. Puértolas-Pascual, J. Russo, B. Bauluz, and O. Mateus Crystallography of Lourinhanosaurus eggshells (Dinosauria, Theropoda, Allosauroidea). Journal of Vertebrate Paleontology, Program and Abstracts., 2019. Abstract
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Biscaia, H. C., R. Micaelo, and C. Chastre. "Cyclic performance of adhesively bonded joints using the Distinct Element Method: Damage and parametric analysis." Composites Part B: Engineering. 178 (2019). AbstractWebsite

Adhesively bonded joints have been widely used by engineers to solve problems in different industries. Despite recent studies which have helped with the design and application of these joints, there are still several uncertainties that justify empirical implementation in practice. One main aspect is the rigorous understanding of the performance of these joints when subjected to cyclic loading. Although the monotonic performance of adhesively bonded joints is well known, the cyclic behaviour raises several issues. Therefore, a numerical strategy based on the Distinct Element Method (DEM) was implemented in this work to mitigate the lack of knowledge about the cyclic behaviour between two materials adhesively bonded to each other. For that purpose, the single-lap pull-push test was modelled and due to the diversity of the existing cohesive models, four different bond-slip relationships and two unloading paths (with ductile or “cleavage unloading”) were considered. The results suggest that if the bond-slip relationship has an elastic stage, then the interfacial bond degradation is delayed. On the other hand, the interfacial damage of the joints with the number of cycles increases rapidly in those cases where the bond-slip relationships have no elastic stage and, at the same time, the slip accumulation is allowed. In addition, the results of two different tests available in the literature were implemented and fairly reproduced by the DEM. © 2019 Elsevier Ltd

Zeeshan, Faisal, Joanna Hoszowska, {Jean Claude} Dousse, Dimosthenis Sokaras, {Tsu Chien} Weng, Roberto Alonso-Mori, Matjaz Kav{\v c}i{\v c}, Mauro Guerra, {Jorge Miguel} Sampaio, Fernando Parente, Paul Indelicato, {José Pires} Marques, and {José Paulo} Santos. "Diagram, valence-to-core, and hypersatellite Kβ X-ray transitions in metallic chromium." X-Ray Spectrometry. 48 (2019): 351-359. Abstract

We report on measurements of the Kβ diagram, valence-to-core (VtC), and hypersatellite X-ray spectra induced in metallic Cr by photon single and double K-shell ionization. The experiment was carried out at the Stanford Synchrotron Radiation Lightsource using the seven-crystal Johann-type hard X-ray spectrometer of the beamline 6-2. For the Kβ diagram and VtC transitions, the present study confirms the line shape features observed in previous works, whereas the K h β hypersatellite transition was found to exhibit a complex spectral line shape and a characteristic low-energy shoulder. The energy shift of the hypersatellite relative to the parent diagram line was deduced from the measurements and compared with the result of extensive multiconfiguration Dirac–Fock (MCDF) calculations. A very good agreement between experiment and theory was found. The MCDF calculations were also used to compute the theoretical line shape of the hypersatellite. A satisfactory agreement was obtained between the overall shapes of the experimental and theoretical spectra, but deviations were observed on the low- and high-energy flanks of the hypersatellite line. The discrepancies were explained by chemical effects, which were not considered in the MCDF calculations performed for isolated atoms.

Hendrickx, C., O. Mateus, R. Araújo, and J. Choiniere. "The distribution of dental features in non-avian theropod dinosaurs: Taxonomic potential, degree of homoplasy, and major evolutionary trends." Palaeontologia Electronica. 22 (2019). Abstract
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Meshcheryakov, V. N., D. V. Lastochkin, Z. M. Shakurova, and S. Valtchev. "Energy saving system of cascade variable frequency induction electric drive." E3S Web of Conferences. 124 (2019). Abstract
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Mateus, Octávio, Pedro M. Callapez, Michael J. Polcyn, Anne S. Schulp, António Olímpio Gonçalves, and Louis L. Jacobs. "The Fossil Record of Biodiversity in Angola Through Time: A Paleontological Perspective." Biodiversity of Angola: Science {&} Conservation: A Modern Synthesis. Eds. Brian J. Huntley, Vladimir Russo, Fernanda Lages, and Nuno Ferrand. Cham: Springer International Publishing, 2019. 53-76. Abstract

This chapter provides an overview of the alpha paleobiodiversity of Angola based on the available fossil record that is limited to the sedimentary rocks, ranging in age from Precambrian to the present. The geological period with the highest paleobiodiversity in the Angolan fossil record is the Cretaceous, with more than 80{%} of the total known fossil taxa, especially marine molluscs, including ammonites as a majority among them. The vertebrates represent about 15{%} of the known fauna and about one tenth of them are species firstly described based on specimens from Angola.