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Holistic strategy of public action and visual digitalization in convergent environment
Mario Plenković, Tina Tomažič, Vlasta Kučiš, 2010, original scientific article

Abstract: Basic operative terms of visual phenomenology are analyzed to develop a holistic strategy for public action within the new culture of communicating inthe global context. New arenas of visual communication are observed as a sociocultural process of adjusting visual technology. Creating a new strategy for public action will enhance daily life and understanding between all citizens, about questions concerning human development and society in general.A theoretical discussion is conducted through diachronic and synchronic analysis of visual communication content. The main goal is to establish a new communicative paradigm for a holistic strategy of public action. Observing visual digitalization, the authors develop a holistic strategy for public action, not only in the technical sense of the transmission and adjustment of analog signal into digital signal. The future of visual communication is a powerful source for creating images, the transmission of pictures via images, and the description or manipulation of reputation, dominance, subjection, and media exhaustion within the convergent environment. The authors identify technical and sociocultural questions regarding visual communication from the perspective of the usage of new information and communication technologies (ICT). The holistic public action strategy seeks to preserve cultural identity within the context of global communication.
Keywords: holistic strategy, visual communication, digitalization, public action, media
Published: 31.05.2012; Views: 1024; Downloads: 12
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The multilevel MINLP optimization approach to structural synthesis: the simultaneous topology, material, standard and rounded dimension optimization
Stojan Kravanja, Simon Šilih, Zdravko Kravanja, 2005, original scientific article

Abstract: The paper describes the simultaneous topology, material, standard and rounded dimension optimization of mechanical structures, performed by the Mixed-Integer Non-linear Programming (MINLP) approach. Beside the generation of an MINLP mechanical superstructure, the development of a general multilevel MINLP formulation for a mechanical superstructure is presented. The consideration of the discrete materials as well as standard and particularly rounded dimensions in structural synthesis significantly increases the combinatorics of the discrete optimization, which as a result may become too difficult to solve. A Linked Multilevel Hierarchical Strategy (LMHS) has been introduced for the solving of such large combinatorial problems. In order to decrease the effect of non-convexities, the Modified Outer-Approximation/Equality-Relaxation (OA/ER) algorithm has been applied. Four numerical examples of different complexities are presented to illustrate the proposed multilevel MINLP optimization approach: the optimization of two steel trusses, a composite I beam and a hydraulic steel roller gate Intake gate, erected in Aswan II, Egypt.
Keywords: structural optimization, structural synthesis, MINLP, topology opitmization, material optimization, discrete variable optimization, multilevel MINLP strategy, truss, composite beam, roller gate
Published: 01.06.2012; Views: 1465; Downloads: 34
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Intelligent tool path generation for milling of free surfaces using neural networks
Jože Balič, Marjan Korošec, 2002, original scientific article

Abstract: The presented paper has an intention to show how with the help of Artificial Neural Network (ANN), the prediction of milling tool-path strategy could be made in order to establish which milling path strategy or their sequence will show the best results (will be the most appropriate) at free surface machining, according to set technological aim. In our case the best possible surface quality of machined surface was taken as the primary technological aim. Configuration of used Neural Network (NN) is presented, and the whole procedure is shown on an example of mould, for producing light switches. The verification of machined surface quality, according to average mean roughness, Ra, is also being done, and compared with the NN predicted results
Keywords: neural network, CAD/CAM, CAPP, ICAM, milling strategy
Published: 01.06.2012; Views: 888; Downloads: 35
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