2,230 research outputs found

    What’s going on in the architecture of Enric Miralles? The space that is never entered

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    [EN] Enric Miralles would go so far as to say that all his projects were also public spaces. This essay reconstructs the theoretical framework in which his architecture is positioned as a problem around the origin of form and time, while interpreting the intellectual references and the countless allegorical universes to which his creative output refers.[ES] Enric Miralles llegaría a afirmar en una ocasión que todos sus proyectos lo eran también de espacio público. El presente ensayo reconstruye el marco teórico en el que su arquitectura se emplaza como un problema en torno al origen de la forma y el tiempo, a la vez que interpreta las referencias intelectuales y el sin número de universos alegóricos a los que remite su producción construida.Rovira Gimeno, JM.; García-Estévez, CB. (2020). Lo que sucede en la arquitectura de Enric Miralles: ese no poder entrar nunca…. EN BLANCO. Revista de Arquitectura. 12(29):7-15. https://doi.org/10.4995/eb.2020.14396OJS7151229Aureli, Pier Vittorio. The Possibility of an Absolute Architecture. Cambridge, MA: The MIT Press, 2011.Breton, André. "Manifiesto del Surrealismo." In Manifiestos del Surrealismo, 17-70. Barcelona: Editorial Labor, 1980.Connors, Joseph. Borromini and the Roman oratory: Style and Society. Cambridge MA: MIT Press, 1980.García Montero, Luís. Las palabras rotas: El desconsuelo de la democracia. Madrid: Alfaguara, 2019.García-Estévez, Carolina B. "La Gran Casa, o sobre el interior en la obra de Enric Miralles." Congreso Internacional Cultura y Ciudad. La Casa. Espacios Domésticos, Modos de Habitar (Granada: Abada editores, 2019), 1372-1383.García-Estévez, Carolina B. y Josep M. Rovira. Enric Miralles, Archigraphias, 1983-2000. Madrid: Abada Editores, 2020.Miralles Enric, y Carme Pinós. "Cubiertas en la Plaza Mayor de Parets del Valles." El Croquis no.30 (1987): 44-49.Miralles, Enric, y Carme Pinós. "ABEZEDARIO, entrevista a cargo de Joan Roig." A30. Publicación de Arquitectura no.6 (1987).Miralles, Enric. "Alphabets and Shadows." Lecture in Architectural Association, London, May 19, 1998.Miralles, Enric. "Compleja como un tapiz barroco, entrevista realizada por Juan Insúa." La Vanguardia, 26 de abril de 1994.Miralles, Enric. "El esponjamiento." El País, 5 de noviembre de 1995.Miralles, Enric. "For what time is this place?" Topos 8. European Landscape Magazine no.8 (1994): 102-108.Miralles, Enric. "Izquierda-Derecha. (Una nota y tres aclaraciones)." In La Mirada del Arquitecto, Anotaciones, Paisajes, Impresiones, 15-18. Barcelona: Colegio de Arquitectos de Cataluña, 1992.Miralles, Enric. "Las llaves de la ciudad." In Hierros=Ferros=Irons, 6-11. Barcelona: Col·legi d'Arquitectes de Catalunya, 1996.Miralles, Enric. "Lecture." In Technology, Place, and Architecture, 34-55. New York: Rizzoli, 1998.Miralles, Enric. Aprendizajes del arquitecto, video directed by Gustavo Cortés Bueno, followed by Miralles Tagliabue EMBT: estado de las obras: julio 2002, directed by Bigas Luna Studio. Barcelona: Fundación Arquia, 2010.Rilke, Rainer Maria. Diario Florentino. Buenos Aires: Editorial y Librería Goncourt, 1973.Rovira, Josep M. "Enric Miralles: tendersi come un arco: Mercado de Santa Caterina en Barcelona, 1997-2005." DC Papers. Revista de crítica arquitectónica 17-18 (2009): 163-180.Tanizaki, Jun'ichirō. El elogio de la sombra. Madrid: Editorial Siruela, 2019.Tuñón, Emilio, y Luís Moreno Mansilla. "Apuntes de una conversación informal [con Enric Miralles]." El Croquis no.100-101 (2000): 8-21.Zaera-Polo, Alejandro. "Una conversación con Enric Miralles." El Croquis no.72 [II] (1995): 260-275

    Evaluation of the simultaneous presence of SO2 and CO as impurities in the carbon capture and storage technology. CO2/SO2/CO cocapture

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    From the presented experimental data of two CO2-rich mixtures containing SO2 and CO as impurities of anthropogenic CO2, we evaluated the impact of the simultaneous presence of these impurities on the transport, injection and storage of carbon capture and storage (CCS) technology. We determined the density, vapor-liquid equilibrium and speed of sound of a cocapture mixture (non-purified captured flue gas) [CO2 + 4.93 mol% SO2 + 3.01 mol% CO] and a mixture representative of European emissions (purified) [CO2 + 0.09 mol% SO2 + 1.12 mol% CO], measured from 263 to 373 K and pressures up to 30 MPa for the density and up to 190 MPa for the speed of sound. Using our experimental results, we validated two extended versions of the equation of state for combustion gases (EOS-CG) and the perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state (EoS). From the calculation of selected operational CCS parameters, we concluded that, in the cocapture mixture, SO2 overcomes or compensates for the negative effect of CO, and then this mixture could be a favorable fluid for CCS. The negative effect of CO predominates in the emissions mixture. Differences in the chemical reactivity due to the studied impurities were not considered. © 2021 Institution of Chemical Engineer

    Large Eddy Simulation for high pressure flows: Model extension for compressible liquids

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    [EN] The present study gives a general outline for the fluid-dynamical calculation of flows at high pressure conditions. The main idea is to present a mathematical description of high pressure processes in liquids at compressible conditions, quantifying the effect of density variations on the flow pattern due to those pressure variations. The improved mathematical approach is coupled to a Large Eddy Simulation (LES) solver. The main code was developed by OpenSource Ltd. for OpenFOAM, and the authors have introduced the additional expressions in order to calculate particular variables. For validating the code improvement, the LES solver is applied to a modern common-rail nozzle injector used in diesel engines. Results have been compared against other calculations that assumed constant properties and simultaneously validated with experimental data. © 2010 Elsevier Ltd.This work has been funded by MINISTERIO DE CIENCIA E INNOVACION from Spain, in the framework of the project “ESTUDIO TEORICO EXPERIMENTAL DE LA INFLUENCIA DEL COMBUSTIBLE SOBRE LA CAVITACION Y EL DESARROLLO DEL CHORRO EVAPORATIVO”, Reference No. TRA2010-17564. The authors would like to thank Universidad de Valencia for the computer resources, technical expertise, the assistance provided and for allowing the use of the supercomputer Tirant.Payri, R.; Tormos, B.; Gimeno, J.; Bracho Leon, G. (2011). Large Eddy Simulation for high pressure flows: Model extension for compressible liquids. Mathematical and Computer Modelling. 54(7):1725-1731. https://doi.org/10.1016/j.mcm.2010.12.001S1725173154

    Enhancing resonant circular-section haloscopes for dark matter axion detection: approaches and limitations in volume expansion

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    Haloscopes, microwave resonant cavities utilized in detecting dark matter axions within powerful static magnetic fields, are pivotal in modern astrophysical research. This paper delves into the realm of cylindrical geometries, investigating techniques to augment volume and enhance compatibility with dipole or solenoid magnets. The study explores volume constraints in two categories of haloscope designs: those reliant on single cavities and those employing multicavities. In both categories, strategies to increase the expanse of elongated structures are elucidated. For multicavities, the optimization of space within magnets is explored through 1D configurations. Three subcavity stacking approaches are investigated, while the foray into 2D and 3D geometries lays the groundwork for future topological developments. The results underscore the efficacy of these methods, revealing substantial room for progress in cylindrical haloscope design. Notably, an elongated single cavity design attains a three-order magnitude increase in volume compared to a WC-109 standard waveguide-based single cavity. Diverse prototypes featuring single cavities, 1D, 2D, and 3D multicavities highlight the feasibility of leveraging these geometries to magnify the volume of tangible haloscope implementations

    The role of neutrophils in pregnancy, term and preterm labour

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    Neutrophils are surveillance cells, and the first to react and migrate to sites of inflammation and infection following a chemotactic gradient. Neutrophils play a key role in both sterile inflammation and infection, performing a wide variety of effector functions such as degranulation, phagocytosis, ROS production and release of neutrophil extracellular traps (NETs). Healthy term labour requires a sterile pro-inflammatory process, whereas one of the most common causes of spontaneous preterm birth is microbial driven. Peripheral neutrophilia has long been described during pregnancy, and evidence exists demonstrating neutrophils infiltrating the cervix, uterus and foetal membranes during both term and preterm deliveries. Their presence supports a role in tissue remodelling via their effector functions. In this review, we describe the effector functions of neutrophils. We summarise the evidence to support their role in healthy pregnancy and labour and describe their potential contribution to microbial driven preterm birth

    Experimental assessment of skull aberration and transmission loss at 270 kHz for focused ultrasound stimulation of the primary visual cortex

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    Transcranial focused ultrasound is a rapidly emerging method for non-invasive neuromodulation and stimulation. However, the skull causes a significant acoustic barrier and can reduce the focal intensity and alter the position and shape of the focus compared to free-field. In this study, the insertion loss and focal distortion due to the skull bone were quantified using three ex vivo human skulls and a focused ultrasound transducer operating at 270 kHz targeted on the approximate positions of the left and right primary visual cortex. Compared to free-field, the average insertion loss was -9.8 dB (± 2.2 dB), while the average focal shift was 1.7 mm (± 0.56 mm) in the lateral direction and 2.8 mm (±4.2 mm) in the axial direction. Overall, the acoustic aberrations were small compared to the size of the focal volume, meaning effective stimulation at this frequency can likely be achieved without patient-specific targeting. However, the insertion loss was significant and should be considered when selecting the target focal intensity for human studies

    Influence of SO2 on CO2 storage for CCS technology: Evaluation of CO2/SO2 co-capture

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    In this work, we determined the influence of SO2 as an impurity in anthropogenic CO2 on carbon capture and storage (CCS) technology. We evaluated the impact on selected injection and storage parameters and the Joule-Thomson coefficient to assess the safety of long-term geological storage of CO2. For this purpose, we obtained new pressure-density-temperature-composition, vapor-liquid-equilibrium, and pressure-speed of sound-temperature-composition experimental data for CO2-rich mixtures containing SO2. To increase the general understanding of the impact of SO2, the compositions cover possible co-capture mixtures, SO2-enriched mixtures, and mixtures similar to industrial emissions. Temperatures and pressures were based on relevant geological storage site values. Our experimental results were used to validate the EOS-CG and PC-SAFT equations of state (EoSs) for CO2 + SO2 under the studied CCS conditions. On the understanding that the chemical reactivity effects due to SO2 have not been considered, we concluded that the presence of SO2 is profitable in most of the studied aspects, especially in the case of shallow reservoirs, and that CO2/SO2 co-capture may be considered as an alternative approach to reduce the costs of CO2 purification. Based on the assessment of the impact of 5 mol% SO2 in the injected fluid in seven saline aquifers, we determined that the reservoirs that would receive the most benefit were Sleipner, Nagaoka and Frio

    Impact of a 2-year intervention program on cardiometabolic profile according to the number of goals achieved

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    We investigated the impact of lifestyle goal achievement on cardiovascular risk factors after a 2-year behavioral intervention program applied to 394 adults (113 with diabetes, mean age 60.2 ± 11.4 years, 56% women) and targeting four goals: &#8805;5% weight loss; &#8805;150 min/week physical activities; <10% saturated fat intake/day; &#8805;400 g fruit and vegetable intake/day. Baseline characteristics and changes in variables after intervention among the four categories of number of goals achieved (none, 1, 2, and &#8805;3) were compared by independent ANOVA or the Kruskal-Wallis test. Individuals without diabetes achieving a higher number of goals were more likely to be older (3 or 4 goals: 61.8 ± 12.6 years vs none: 53.3 ± 10.3 years, P < 0.05) and to have a lower mean BMI (3 or 4 goals: 21.7 ± 2.6 kg/m² vs none: 29.0 ± 4.8 kg/m², P < 0.05), diastolic blood pressure (3 or 4 goals: 77.3 ± 2.1 mmHg vs none: 85.4 ± 9.6 mmHg, P < 0.05), triglyceride (3 or 4 goals: 116.1 ± 95.1 mg/dL vs none: 144.8 ± 65.5 mg/dL, P < 0.05) and insulin levels (3 or 4 goals: 3.6 ± 2.4 &#956;U/L vs none: 5.7 ± 4.0 &#956;U/L, P < 0.05) than those achieving fewer goals. The absolute changes in cardiovascular risk factors tended to be more pronounced with increasing number of goals achieved in individuals without diabetes. The intervention had a beneficial impact on the cardiometabolic profile of individuals with normal or altered glucose metabolism. The number of goals achieved in this lifestyle intervention was associated with the magnitude of improvement of cardiovascular risk factors in individuals without diabetes. Participants with a better cardiometabolic profile seemed to be more likely to have a healthy lifestyle
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