51,134 research outputs found

    Deriving a systematic approach to changeable manufacturing system design

    Get PDF
    It has long been argued that Factories are long life and complex products. The complexity of designing factories, and their underlying manufacturing systems, is further amplified when dealing with continuously changing customer demands. At the same time, due to research fragmentation, little if any scientific explanations are available supporting and exploiting the paradigm that "factories are products". In order to address this weakness, this paper presents research results arising from a comparative analysis of systematic "product design" and "manufacturing system design" approaches. The contribution emerging from this research is an integrated systematic design approach to changeable manufacturing systems, based on scientific concepts founded upon product design theories, and is explained through a case study in the paper. This research is part of collaboration between the CERU University of Malta and IAO Fraunhofer aimed at developing a digital decision support tool for planning changeable manufacturing systems.peer-reviewe

    E-democracy as the frame of networked public discourse : information, consensus and complexity

    Get PDF
    The quest for democracy and the political reflection about its future are to be understood nowadays in the horizon of the networked information revolution. Hence, it seems difficult to speak of democracy without speaking of e-democracy, the key issue of which is the re-configuration of models of information production and concentration of attention, which are to be investigated both from a political and an epistemological standpoint. In this perspective, our paper aims at analyzing the multi-agent dimension of networked public discourse, by envisaging two competing models of structuring this discourse (those of dialogue and of claim) and by suggesting to endorse the epistemic idea of complementarity as a guidance principle for elaborating a form of partnership between traditional and electronic media

    Subjectivity in contemporary visualization of reality: re-visiting Ottoman miniatures

    Get PDF
    Though Ottoman miniatures are 2D representations, they carry the potential of conveying an individual’s perception in a more detailed manner as compared to 3D perspective renderings. In a typical 2-vanishing-point perspective; objects / subjects drawn in the foreground hide the ones that are located at their back: This phenomenon is called occlusion. In Ottoman miniatures there is no occlusion, all object / subject illustrations are wholistic, there is no partial description of figures. Consequently, you end up with a life form that is the synthesis of individual forms, a sui generis state... This unique visual narrative can be extended to cubist works where multifaceted descriptions are observed. Another advantage of Ottoman miniatures is that hierarchies of image and image maker are quite clear. Miniatures make use of distance, void, shape, scale relationships and their layout to give a sense of depth in space. Though objectivity is very much valued in visual representation, ideal objectivity is not possible since representations are created by subjects and subjects belong to cultures that have different criteria in forming / perceiving portrayals. Moreover, tools that are used for visual representations usually prove to be narrower than the scope of human perception. Departing from the point of view explained above, Muta-morphosis is a photography project that is created as an almost surreal visualization stemming from the real. The lack of a single perspectival structure due to multiplicity of perspectives after compressed panoramic imaging, can be linked to Ottoman miniatures, which in turn, connects the global contemporary representation to its local traditional counterpart. Keywords: Ottoman miniature painting, contemporary photography, child drawings, visualization, representation, reality, documentary, subjectivity, objectivity, visual narration

    Book Review: \u3cem\u3eRe-imagining South Asian Religions: Essays in Honour of Professors Harold G. Coward and Ronald W. Neufeldt\u3c/em\u3e

    Get PDF
    Book Review of Re-imagining South Asian Religions: Essays in Honour of Professors Harold G. Coward and Ronald W. Neufeldt. (Numen Book Series: Studies in the History of Religions, volume 141.) Edited by Pashaura Singh and Michael Hawley. Leiden and Boston: Brill, 2013, xxv + 302 pp

    A metric to represent the evolution of CAD/analysis models in collaborative design

    Get PDF
    Computer Aided Design (CAD) and Computer Aided Engineering (CAE) models are often used during product design. Various interactions between the different models must be managed for the designed system to be robust and in accordance with initially defined specifications. Research published to date has for example considered the link between digital mock-up and analysis models. However design/analysis integration must take into consideration the important number of models (digital mock-up and simulation) due to model evolution in time, as well as considering system engineering. To effectively manage modifications made to the system, the dependencies between the different models must be known and the nature of the modification must be characterised to estimate the impact of the modification throughout the dependent models. We propose a technique to describe the nature of a modification which may be used to determine the consequence within other models as well as a way to qualify the modified information. To achieve this, a metric is proposed that allows the qualification and evaluation of data or information, based on the maturity and validity of information and model

    Archaeology and virtual acoustics. A pan flute from ancient Egypt

    Get PDF
    This paper presents the early developments of a recently started research project, aimed at studying from a multidisciplinary perspective an exceptionally well preserved ancient pan flute. A brief discussion of the history and iconography of pan flutes is provided, with a focus on Classical Greece. Then a set of non-invasive analyses are presented, which are based on 3D scanning andmaterials chemistry, and are the starting point to inspect the geometry, construction, age and geographical origin of the instrument. Based on the available measurements, a preliminary analysis of the instrument tuning is provided, which is also informed with elements of theory of ancient Greek music. Finally, the paper presents current work aimed at realizing an interactive museum installation that recreates a virtual flute and allows intuitive access to all these research facets

    A picture is worth a thousand words: The perplexing problem of indexing images

    Get PDF
    Indexing images has always been problematic due to their richness of content and innate subjectivity. Three traditional approaches to indexing images are described and analyzed. An introduction of the contemporary use of social tagging is presented along with its limitations. Traditional practices can continue to be used as a stand-alone solution, however deficiencies limit retrieval. A collaborative technique is supported by current research and a model created by the authors for its inception is explored. CONTENTdm® is used as an example to illustrate tools that can help facilitate this process. Another potential solution discussed is the expansion of algorithms used in computer extraction to include the input and influence of human indexer intelligence. Further research is recommended in each area to discern the most effective method
    • …
    corecore