6 results
Search Results
2. A Casa Portuguesa: Between Tradition and Avant-Garde: The First Social Housing Neighbourhoods in Setúbal (Portugal)
- Author
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Universidad de Sevilla. Departamento de Urbanística y Ordenación del Territorio, Costa Rosado, Ana, Rodríguez Lora, Juan Andrés, López Bravo, Celia, Navarro De Pablos, Francisco Javier, Navas Carrillo, Daniel, Universidad de Sevilla. Departamento de Urbanística y Ordenación del Territorio, Costa Rosado, Ana, Rodríguez Lora, Juan Andrés, López Bravo, Celia, Navarro De Pablos, Francisco Javier, and Navas Carrillo, Daniel
- Abstract
In Portugal, the first public housing policies were developed in a high state-control context: the Salazar dictatorship (1933-1968). Until the 1950s, the Estado Novo (the dictatorial regime) actions had an evident paternalistic character by constructing small-scale housing focused on the most urgent cases or aimed at controlling specific sectors of the population. The public effort focused on promoting housing in the country's central districts and cities, given that the population was abandoning rural areas to seek better living conditions in the large cities with a higher level of industrialisation. In this context, the official architectural discourse defended the ideal of the Casa Portuguesa [Portuguese House] as an affirmation of the ideological discourse of the regime. This model advocated a ruralising architecture style by integrating architectural and decorative elements of the region's traditional architecture, including an outdoor garden to grow vegetables, store agricultural, farming or fishing tackle. The single-family dwelling was presented as the only residential type capable of assuming the Nation's principles as seen by the regime, with low-rise and low-density urban designs typical of the garden city. It would become an excellent instrument to enforce the traditional family model and preserving the existing social order. In this regard, the paper proposes to study the first social housing neighbourhoods built in the medium-sized city of Setúbal: Afonso Costa, Nossa Senhora da Conceição, Pescadores and Famílias Pobres. Setúbal has historically played a significant role in the region due to its strategic location within its territorial structure around the Sado Estuary. Linked to the fishing tradition, the city overgrew in the first decades of the 20th century thanks to the canning industry, making it a recipient of the migratory processes that gave rise to social housing construction. The research has identified that these four neighbourhoods respond
- Published
- 2022
3. Experimental investigation of three-dimensional effects in cavitating flows with time-resolved stereo Particle Image Velocimetry Physics of Fluids
- Author
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Long, Kunpeng, Coutier-Delgosha, Olivier, Bayeul-Lainé, Annie-Claude, Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 (LMFL), Centrale Lille-ONERA-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), and Virginia Tech [Blacksburg]
- Subjects
Fluid Flow and Transfer Processes ,PIV ,[SPI]Engineering Sciences [physics] ,Cavitation ,Mechanics of Materials ,Mechanical Engineering ,Computational Mechanics ,Instability ,Flow imaging ,Condensed Matter Physics ,3D effects ,Sciences de l'ingénieur - Abstract
International audience; The present paper is devoted to characterizing the three-dimensional effects in a cavitating flow generated in a Venturi-type profile. Experimental measurements based on 2D3C(Two-dimensionalthree-component) stereoscopic PIV(Particle Image Velocimetry) are conducted to obtain the three components of the velocity field in multiple vertical planes aligned with the main flow direction, from the center of the channel to the side walls. Time-resolved acquisitions are conducted, so not onlytime-averaged quantities but also velocity fluctuations can be discussed. The attention was focused on configurations of cloud cavitation, where the attached cavity experiences large-scale periodical oscillations and shedding of clouds of vapor. Although the water channel is purely two-dimensional, some significant flow velocities in the third direction (depth of the test section) were measured. Some of those velocities were found to be related to small differences between the boundary conditions on the two sides, such as minor gaps between the sides and the bottom wall, while others reflect intrinsic three-dimensional mechanisms inside the cavitation area, such as side jets that contribute to the periodical instability process. These mechanisms are discussed, and a possible 3D(Threedimensional) structure of the cavitating flow is proposed.
- Published
- 2023
4. A Casa Portuguesa: Between Tradition and Avant-Garde: The First Social Housing Neighbourhoods in Setúbal (Portugal)
- Author
-
Ana C. Rosado, Juan-Andrés Rodríguez-Lora, Celia López-Bravo, Javier Navarro-de-Pablos, Daniel Navas-Carrillo, and Universidad de Sevilla. Departamento de Urbanística y Ordenación del Territorio
- Abstract
In Portugal, the first public housing policies were developed in a high state-control context: the Salazar dictatorship (1933-1968). Until the 1950s, the Estado Novo (the dictatorial regime) actions had an evident paternalistic character by constructing small-scale housing focused on the most urgent cases or aimed at controlling specific sectors of the population. The public effort focused on promoting housing in the country's central districts and cities, given that the population was abandoning rural areas to seek better living conditions in the large cities with a higher level of industrialisation. In this context, the official architectural discourse defended the ideal of the Casa Portuguesa [Portuguese House] as an affirmation of the ideological discourse of the regime. This model advocated a ruralising architecture style by integrating architectural and decorative elements of the region's traditional architecture, including an outdoor garden to grow vegetables, store agricultural, farming or fishing tackle. The single-family dwelling was presented as the only residential type capable of assuming the Nation's principles as seen by the regime, with low-rise and low-density urban designs typical of the garden city. It would become an excellent instrument to enforce the traditional family model and preserving the existing social order. In this regard, the paper proposes to study the first social housing neighbourhoods built in the medium-sized city of Setúbal: Afonso Costa, Nossa Senhora da Conceição, Pescadores and Famílias Pobres. Setúbal has historically played a significant role in the region due to its strategic location within its territorial structure around the Sado Estuary. Linked to the fishing tradition, the city overgrew in the first decades of the 20th century thanks to the canning industry, making it a recipient of the migratory processes that gave rise to social housing construction. The research has identified that these four neighbourhoods respond to a simple-line architecture close to the Modern Movement, especially in their spatial organisation. However, their external image and their urban planning link them to the “Portuguese House” ideals. Most of them consist of one- or two-storey houses, detached or semi-detached with gardens, and their façades incorporate elements typical of the popular architecture.
- Published
- 2022
5. Neagging: an aggregation procedure based on normalized entropy
- Author
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Maria Conceição Costa, Pedro Macedo, and João Pedro Cruz
- Subjects
Aggregation ,Big data ,Maximum entropy - Abstract
The analysis of big data, namely in inhomogeneous large-scale data under the regression analysis context, is a research topic with growing interest in recent years, where bagging and magging are two well-known aggregation procedures. As this kind of data may be recorded in different time regimes or may be taken from multiple sources, inhomogeneities are expected to be present, compromising regression modelling. The classical framework of independent and identically distributed errors related to a single underlying model does not apply and the usual alternatives (such as time-varying coefficients models or mixture models, for instance) may represent prohibitive computational burden. This paper revises the methodology developed in a recent work where an aggregation procedure based on normalized entropy was proposed, with very promising results, and illustrates its performance with real data applications considering distinct scenarios. published
- Published
- 2022
6. Approach to couple MATLAB Simscape and Simulink blocks for dynamic analysis of multiphase drive systems
- Author
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Kotb B. Tawfiq, Mohamed N. Ibrahim, E. E. EL-Kholy, Peter Sergeant, Goman, Victor, and Mironova, Maria
- Subjects
Technology and Engineering - Abstract
Multiphase machine models can be accurately designed and represented by means of MATLAB Simulink. This is because the dq-axis flux linkages and the torque response of the multiphase machines can be accurately expressed and described by means of lookup tables-based finite element method (FEM) simulations. However, the power electronic converters are easily implemented using MATLAB Simscape. Hence, the two MATLAB blocks should be connected together to provide the whole drive system. However, there will be a problem to easily connect the two MATLAB blocks directly. Consequently, this paper introduces a detailed description of the proposed interconnector that can be used to interface the two MATLAB blocks. A five-phase induction motor Simulink model connected to a five-phase voltage source inverter Simscape model will be presented to analyze and describe the implementation of the proposed interconnector. Finally, the simulation result of the five-phase squirrel cage induction motor, the five-phase voltage source inverter and the proposed interconnector are displayed.
- Published
- 2022
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