Aplicacao do geoprocessamento no estudo da impermeabilidade urbana

The environmental impact of urbanization due to the surface impervious growing and inadequacy of urban occupation induces to a significant increase of inundation events in every urban center. Hence, this paper focuses the concept of impervious surface as an indicator of environment impact, expressed through the changing of pervious areas in impervious areas by paving cover or building occupation. It is taken as a case study 13 areas pertaining to Canoas City, Rio Grande do Sul – Metropolitan area of Porto Alegre, Brazil. The main goal of the methodology process is to achieve information about types of land cover for studying the association with urban impermeability level. Therefore, the manipulation of municipal digital cartographic base of Canoas City with aerial photographs, through the geoprocessing applied in geographic information system toolbox (GIS), allows this research to produce data about of urban impervious areas generation. These results could help the urban settlement planning to reduce the impervious cover and the hydrological impact in its implementation.

Gaussian vault geometry : integrated approach in design and fabrication of physical prototypes

This paper reports the second part of a study on the digital design and fabrication of scaled architectural prototypes. The first paper reported techniques in the realization of a double curved vault surface, the Gaussian Vault. The aims of the research here further extend this body of knowledge to a better understanding of constructible components. It addresses the problem of fabricating complex curved forms through the integration of the basic building elements, skin and structure, to achieve a scaled physical prototype. The focus of the experimentation is to investigate the process from which a digital surface form is conceived, to its preparation for fabrication and eventual construction in the fashion of a scaled model or workable prototype.

Physical prototypes in cross-functional team collaboration : a study of the Model-T2 concept car project

Virtual and physical prototypes play a significant role in the design of artifacts. This is particularly true in cross-functional team collaboration, where diverse disciplines come together to contribute to the concept, design and development of an artifact. While the role of prototyping in design and cross-functional collaboration has been widely studied independently, little is known of the role that physical prototypes play during cross-functional team collaboration. This paper reports on a study of virtual and physical prototyping strategies used by a cross-functional team comprising engineers and designers working on a concept car project. The paper provides a background of the collaborative design process and details the role of physical prototyping methods during the design of the concept car.

Wayfarersʼ tales : reflecting on the doctoral journey

This paper provides a temporal snapshot of two midterm PhD candidates as they both grapple with paradigms and methodology, research questions, external challenges within the research field, locating their voices as doctoral students, and maintaining energy and focus to continue their doctoral journey. These two candidates, one of whom is interstate, share the same supervisor and have come to know each other through telephone reading groups, email communications, and face-to-face meetings with their supervisor, and attending conferences and other collegial opportunities. The catalyst for this paper was a reading group discussion of a paper by Pirrie and Macleod (2010, p. 367) applying the descriptors of ʻjourneyman, wayfarer, fellow traveller or craftsmanʼ to the conceptualisation of the identities of researchers at temporal moments in the research process. We were also inspired by Kamler and Thomsonʼs (2001) paper where they respond to each otherʼs emails in a conversation formulating ideas and perspectives about ʻwriting upʼ research. Additionally, we have considered the work of Ryan, Amorim and Kusch (2010) and Lindsay, Kell, Ouellette and Westall (2010). We have linked their work on reflective learning to our experience of reflecting ʻaloudʼ in a supportive learning community and our subsequent individual reflexive learning. At the heart of our reflections is a relationship between supervisor (Jennifer) and doctoral candidates (Christine and Cheryl); the relationship is a fluid community of practice (Wenger, 1998). A community of practice that depends not so much on direction from the supervisor, but rather as a space where concepts and ideas can be spoken aloud in a safe, critical and supportive environment. Members are able to listen, both to themselves and to each other, before reflecting and finding their own way. At other times each juggles their own professional and personal identities as they become teacher, journeyman, fellow traveller and recalcitrant.