12 research outputs found

    Poetry as a cross-cultural analysis and sensitizing tool in design

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    \u3cp\u3eThe overall trend toward globalization in design, greatly enhanced by digital technologies, has raised issues and challenges on how to preserve the cultural differences and values of different societies. There is a tendency to lose touch with local cultural values when designing artefacts for global use, and social nuances and traditions risk to be flattened or stereotyped in the pursuit of developing new technologies and products for the global society. Attempts to reduce the tension between the global and the local in design can be seen in the development of standards and guidelines for cross-cultural design, that are mostly focused on (online) user interface design. However, when moving from preferences, metaphors, appearance, and navigation toward cultural models of interaction and physical design, new methodologies and tools for cross-cultural design are needed. This paper describes a poetry-inspired design method for cross-cultural sharing within the design process. The approach uses poetry to sensitize the designer to the subtleties and diversity of a (new or known) culture so that the design can be given new aesthetic and cultural significance. The methodology is exemplified by actual design cases developed within the course “Cultural Sensitivity” of the Master’s Degree Program in Industrial Design at Eindhoven University of Technology, where poetry was used for uncovering underlying or implicit assumptions, intercultural differences and similarities, as well as for general sensitization of young designers.\u3c/p\u3

    Redesign of Indonesian-made osteosynthesis plates to enhance their mechanical behavior

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    Mechanical properties determined by fatigue strength, ductility, and toughness are important measures for osteosynthesis plates in order to tolerate some load-bearing situations caused by muscle contractions and weight-bearing effects. Previous study indicated that Indonesian-made plates showed lower mechanical strength compared to the European AO standard plate. High stress under load-bearing situations often starts from surface of the plate; we therefore refined the grain size of the surface by using shot peening and surface mechanical attrition treatment (SMAT). Single cycle bending tests showed that shot-peened and SMAT-treated plates had significantly higher load limit and bending stress compared to the original plates (

    Clinical evaluation of a membrane-based voice-producing element for laryngectomized women

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    Background. A newly developed artificial voice source was clinically evaluated in laryngectomized women for voice quality improvements. The prosthesis was placed in a commercially available, tracheoesophageal shunt valve. Methods. In 17 subjects, voice-producing element (VPE) prototypes were compared with the subject's regular tracheoesophageal shunt voice in a randomized cross-over trial. The evaluation was based on aeroacoustic measurements and perceptual analysis. Results. Considerably higher fundamental frequencies were attained with the use of the VPE. The sound pressure level also increased for most subjects. The required driving pressures of the lung and air flow rates were altered, allowing significantly longer phonation times in 1 breath. Accumulation of mucus did rot interfere with the proper functioning of the device during these tests. Conclusion. A VPE with sound-generating membranes is suitable for providing a substitute voice source for laryngectomized patients, especially patients suggestive of a severely hypotonic or atonic pharyngoesophageal segment who can benefit from a more melodious and louder voice. (c) 2008 Wiley Periodicals, Inc

    The Groningen hypothermic liver perfusion pump: functional evaluation of a new machine perfusion system.

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    To improve preservation of donor livers, we have developed a portable hypothermic machine perfusion (HMP) system as an alternative for static cold storage. A prototype of the system was built and evaluated on functionality. Evaluation criteria included 24 h of adequate pressure controlled perfusion, sufficient oxygenation, a maintained 0-4 degrees C temperature and sterile conditions. Porcine livers were perfused with pump pressures that were set at 4 mmHg (continuous, portal vein) and 30/20 mmHg, at 60 BPM (pulsatile, hepatic artery). Control livers were preserved using the clinical golden standard: static cold storage. In the HMP group, pressure, flow and temperature were continuously monitored for 24 h. At time-points t = 0, 2, 4, 8, 12, and 24 h samples of University of Wisconsin machine preservation solution were taken for measurement of partial oxygen pressure (pO(2)) and lacto-dehydrogenase. Biopsies in every lobe were taken for histology and electron microscopy; samples of ice, preservation solution, liver surface, and bile were taken and cultured to determine sterility. Results showed that temperature was maintained at 0-4 degrees C; perfusion pressure was maintained at 4 mmHg and 30/20 mmHg for portal vein and hepatic artery, respectively. Flow was approximately 350 and 80 ml/min, respectively, but decreased in the portal vein, probably due to edema formation. Arterial pO(2) was kept at 100 kPa. Histology showed complete perfusion of the liver with no major damage to hepatocytes, bile ducts, and non-parenchymal cells compared to control livers. The machine perfusion system complied to the design criteria and will have to demonstrate the superiority of machine perfusion over cold storage in transplant experiments
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