3,657 research outputs found
Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol
In this text, results of a 0.35 terahertz (THz) dynamic aperture imaging
approach are presented. The experiments use an optical modulation approach and
a single pixel detector at a stand-off imaging distance of approx 1 meter. The
optical modulation creates dynamic apertures of 5cm diameter with approx 2000
individually controllable elements. An optical modulation approach is used here
for the first time at a large far-field distance, for the investigation of
various test targets in a field-of-view of 8 x 8 cm. The results highlight the
versatility of this modulation technique and show that this imaging paradigm is
applicable even at large far-field distances. It proves the feasibility of this
imaging approach for potential applications like stand-off security imaging or
far field THz microscopy.Comment: 9 pages, 13 figure
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An Integrated Analysis of Collaborative Design Processes
This thesis makes a contribution to the understanding of designerly ways of solving problems by exploring the central question of how different prototyping materials affect collaborative design processes, especially with regard to the co-construction of knowledge and the social dynamics manifested in verbal and non-verbal behaviour. The thesis also contributes to the existing knowledge by offering a new method to analyse the role of prototypes in collaborative design activities: Proxemic Motion Trace Analysis.
Understanding the relationship between prototypes and design processes is important in the light of an increasing interest in using design-based approaches to develop innovations, and thus to better understand the design process itself. However, what role prototypes and prototyping materials play in collaborative design processes, particularly in verbal and non-verbal interactions, remains an under-researched area.
The thesis comprises two main studies: a series of unstructured field observations, conducted at four design studios, and an academic institution, and a series of 23 controlled experiments consisting of 99 individual design tasks conducted with design students at Central Saint Martins College of Arts and Design.
The key findings demonstrate that: (1) different prototyping materials affect qualitative aspects of verbal and non-verbal behaviour in collaborative design activities in distinguishable ways; (2) specific materials allow for a more connected co-construction of knowledge; and (3) the research undertaken has produced a new and design-specific method of analysing collaborative design processes, especially the verbal and non-verbal behaviour of designers.
It is suggested that these findings have implications for design practice and design education, as well as other professions using designerly ways of solving problems. In addition, the newly developed visual method of analysing design collaboration provides potential for future design research by providing a method that addresses the full complexity of interaction in design collaboration
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