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Towards a post-occupancy methodology for measuring conviviality in the public realm

  • Beltrán Rodríguez, María
  • Simon, Madlen
Conviviality is a term which is used widely in sociology (Ivan Illich 2002, Deegan 1989, Bonnett 2010, Flanagan 2010), but not as much in urban planning and design. Various scholars of urban space have identified a lack of interaction (Gehl 2011, Peter Hall 2011), absence of life in the streets (La Cecla 2012, Scully 2003), loss of social capital (Putman 1996, Olenburg 1989), and disminishing equity (Zukin 2010, Harvey 1997) in public spaces. We view this as a need for conviviality (Simon & Belran 2015). This paper continues our ongoing research, identifying a set of factors of conviviality and proposing metrics for post-occupancy evaluation of existing public spaces. Three broad branches are identified as necessary conditions for convivial environments: physical spaces that are flexible, changing and adaptable; processes and outcomes based in equity, integrity and democracy; and urban uses and solutions that correspond to people’s needs and desires. Within each branch we propose key factors that influence the level of conviviality, as well as ways to identify and evaluate them. The combination of all these factors ultimately creates convivial environments. A better understanding of design for conviviality can inform architects, landscape architects, urban designers and planners to improve the public realm at the scale of the street, the neighborhood and the city.

Impact of spatial and spectral granularity on the performance of SDM networks based on spatial superchannel switching

  • Shariati, Mohammad Behnam
  • Rivas Moscoso, José Manuel
  • Marom, Dan M.
  • Ben Ezra, Shalva
  • Klonidis, Dimitrios
  • Velasco Esteban, Luis Domingo
  • Tomkos, Ioannis
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works., Spatially integrated switching architectures have been recently investigated in an attempt to provide switching capability for networks based on spatial division multiplexing (SDM) fibers, as well as to reduce the implementation cost. These architectures rely on the following switching paradigms, furnishing different degrees of spectral and spatial switching granularity: independent switching, which offers full spatial-spectral flexibility; joint-switching, which treats all spatial modes as a single entity; and fractional-joint switching, whereby subgroups of spatial modes are switched together as independent units. The last two paradigms are categorized as spatial group switching solutions since the spatial resources (modes, cores, or single-mode fibers) are switched in groups. In this paper, we compare the performance (in terms of spectral utilization, data occupancy, and network switching infrastructure cost) of the SDM switching paradigms listed above for varying spatial and spectral switching granularities in a network planning scenario. The spatial granularity is related to the grouping of the spatial resources, whereas the spectral granularity depends on the channel baud rate and the spectral resolution supported by wavelength selective switches (WSS). We consider two WSS technologies for handling of the SDM switching paradigms: 1) the current WSS realization, 2) WSS technology with a factor-two resolution improvement. Bundles of single-mode fibers are assumed across all links as a near-term SDM solution. Results show that the performance of all switching paradigms converge as the size of the traffic demands increases, but finer spatial and spectral granularity can lead to significant performance improvement for small traffic demands. Additionally, we demonstrate that spectral switching granularity must be adaptable with respect to the size of the traffic in order to have a globally optimum spectrum utilization in an SDM network. Finally, we calculate the number of required WSSs and their port count for each of the switching architectures under evaluation, and estimate the switching-related cost of an SDM network, assuming the current WSS realization as well as the improved resolution WSS technology., Peer Reviewed

Arquitectura de la fe, patrimonio cultural del siglo XVI en el siglo XXI en Morelos

  • Benítez Fuentes, Gabriela
  • Guadarrama Zugasti, Leticia
  • Gama Hernández, Gerardo
Ponència presentada a: Session 9: Forma urbana y relaciones entre historia y proyecto: el medio ambiente como patrimonio / Urban form and relationships between design and history: environmental heritage, arquitecture and planning

Structural evaluation and mechanical properties of AZ31/SiC nano-composite produced by friction stir welding process at various welding speeds

  • Abdollahzadeh, A.
  • Shokuhfar, A.
  • Omidvar, H.
  • Cabrera Marrero, José M.
  • Solonin, A.
  • Ostovari, A.
  • Abbasi, M.
A metal matrix composite made of AZ31 containing SiC nano-particles was successfully produced by friction stir welding (FSW), and the effect of processing parameters such as rotational and transversal speeds on the microstructure (grain size) and mechanical properties (tensile and hardness tests) were investigated. Prior to friction stir welding, nano-sized SiC particles were incorporated into the joint line and then different rotational (600, 800 and 1000¿r/min) and transversal speeds (25, 75, 125 and 175¿mm/min) were tested. The results indicated that the grain size of the matrix and SiC nano-particles are two key parameters controlling different characteristics of the developed composite. Both parameters, in turns, are dependent on the heat generated during the FSW process. The increase of rotational speed and decrease of transversal speed result in high amount of heat and homogeneous distribution of SiC nano-particles. The former leads to grain growth and decrease of strength and hardness, while the latter causes grain refinement and increases of strength and hardness. Accordingly, the heat input has opposite effects on matrix grain growth and homogeneous distribution of particles. Therefore, optimum values of rotational and transversal speeds were found (800¿r/min and 75¿mm/min) to produce the best microstructure and mechanical properties.

Creació d'aplicacions de Realitat Augmentada en l'àmbit tecnològic, un recurs interdisciplinari.

  • Ballester i Eixarch, David
Aquest projecte es basa en l'elaboració i utilització d'aplicacions de realitat augmentada de manera transversal en els diferents nivells de l'educació secundària, també implicaria diferents àmbits però principalment orientat al tecnològic. L'objectiu és treure-li el major rendiment a les TIC i reduir la taxa d'alumnes de baix rendiment. Una proposta en què els alumnes dels primers cursos dissenyin objectes 3d amb un programa senzill, els de 3r i 4t confeccionin l'aplicació, per poder visualitzar-los en 3d i R.A. Tots els programes plantejats per a aquest projecte són lliures. Aquesta aplicació també l'aprofitarien en l'àmbit artístic, per visualitzar millor una figura i dibuixar-la en diferents vistes, o en el científic per a la visualització de diversos elements. En l'aspecte psico-pedagògic propicia el constructivisme, fent que l'alumne construeixi els seus propis objectes, li ajuda a visualitzar formes abstractes i també aquesta dinàmica pot ser útil per motivar l'alumnat així com per experimentar amb les noves tecnologies i no només actuar com a usuaris.

Autoabastiment elèctric circuit de Castellolí: motos elèctriques

  • Martí Romaní, Eloi
L’origen del projecte prové d’una necessitat de mitjans de transport pels operaris del Parc Motor de Castellolí, un Parc que destaca per tenir una grandària considerable ja que conté una gran quantitat de diferents circuits, a més de tenir una de les instal·lacions, el Campus del Motor, una mica apartat, i el poble de Castellolí a dos quilòmetres. La implantació d’aquest conjunt de motos elèctriques més els sistemes de càrrega alimentats amb plaques fotovoltaiques, respon a aquesta necessitat de mobilització d’una manera innovadora i respectuosa amb el medi ambient que a priori, aspira a ser més competitiva econòmicament que en el cas de fer servir motos convencionals.

New life cycles for drosscapes: Recycle of a brownfield along the waterfront of Barcelona

  • Di Fede, Giuseppe
  • Girone, Greta
  • Lamanna, Nicola
  • Elvira Messa, Beatrice Marina
  • Pugliese, Carla
  • Santoro, Antonella
Ponència presentada a: Session 7: Participación en planeamiento / Participation in planning. Environmental and hermeneutic planning

Encoding large asynchronous controllers with ILP techniques

  • Carmona Vargas, Josep
  • Cortadella, Jordi
State encoding is one of the most difficult problems in the synthesis of asynchronous controllers. This paper presents a method that can solve the problem of large controllers specified with signal transition graphs. The method is based on the structural theory of Petri nets and uses integer-linear programming to insert state signals in locations that guarantee the consistency and absence of critical races. The structural nature of the proposed method makes it conservative, i.e., a solution cannot be guaranteed, even if it exists. Nevertheless, the experiments show that this limitation did not preclude finding a solution for all the examples presented in this paper. The method can be customized for area or delay optimization. The experimental results confirm the quality of the circuits, as compared with state-based methods. They also show the significant benefits that could be obtained if logic synthesis would be incorporated in synthesis frameworks that generate controllers by syntax-directed translation., Peer Reviewed

Trend analysis of the wave storminess: the wave direction

  • Casas Prat, Mercè
  • Sierra Pedrico, Juan Pablo
In this paper changes in the wave pattern of the Catalan coast are analyzed in terms of wave storminess and wave direction based on series of 44 years of hindcast wave data. The analysis is performed employing two different techniques: one resulting from the combination of regression and bootstrapping and the other applying a Bayesian method. Although the trends are, in general, null, in some locations there are clear changes in the wave directional frequencies. These changes can significatively affect coastal hydrodynamics and morphodynamics., Peer Reviewed

IESD: Herramienta de optimización en rehabilitaciones energéticas de edificios no residenciales

  • Crespo Sánchez, Eva
  • Kampouropoulos, Konstantinos
El iESD es una herramienta software basada en una metodología novedosa que tiene por objetivo facilitar la toma de decisiones técnicas en la fase de pre diseño de rehabilitaciones energéticas en edificios no residenciales, promoviendo el desarrollo de edificios nZEB con un coste óptimo. El motor de cálculo se basa en la definición arquitectónica del edificio en cuanto a soluciones pasivas (volumetría, orientación, transmitancias...) y activas (climatización, energías renovables...), así como en las condiciones climáticas y los perfiles de operación del edificio. Es una combinación de modelos matemáticos que caracterizan los vectores de demanda energética anual de un edificio con el uso de algoritmos de optimización evolutiva.

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