45 research outputs found

    Fatigue strength and design stress of oil palm wood for furniture application.

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    Oil palm wood (OPW) and oil palm empty fruit bunches based particleboard (OPEFBP) furniture components were tested on edge in order to determine their resistance to fatigue. Tests were carried out at selected stress levels that corresponded to specific percentages of the material's ultimate strength (modulus of rupture - MOR). Generally, the materials fatigue life decreased as the levels of stress increased, and the allowable design stresses for the OPW and OPEFBP furniture components could be set at 40% of their respective MOR. The study also showed that OPW does not perform as well as solid Rubberwood in cyclic loading, but the OPEFBP showed similar fatigue performance to the conventional Rubberwood-based particleboard

    Performance and stability of historic casein formaldehyde

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    Casein formaldehyde was manufactured between 1904 and 1982 in Western Europe both by International Galalith Gesellschaft (IGG) and Erinoid Ltd. (amongst others). Charles Rennie Mackintosh used it in his designs for furniture commissioned by Wenman Joseph Bassett-Lowke. Casein formaldehyde may be identified through a range of simple and analytical methods available to most conservators in private and public practice. We can control the loss of colour and protect the surface finish by minimising light exposure. Material, aged and distorted, may be reversed if the correct conservation procedures are observed and implemented

    Capturing characteristics of the conceptual ideation process of master crafts persons to inform design education: a comparative study of rural craft practitioners in Indonesia and in the UK

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    At the very early stage of idea generation, allegedly, a master craftsperson encounters cognitive dissonance to maintain beliefs/mindsets from various conceptual stimuli. We aim to capture the underlying form of cognition by examining the structure of thoughts collected from the subjective conceptualisation. A think-aloud protocol was employed to obtain verbalised thoughts of both Indonesian and UK master craftsmen. The keywords of verbalised thoughts were evaluated and extracted using a list of typical mindsets. The evaluated keywords were then analysed by means of a conceptual network to reproduce a model of the individual's mental state. This study discovered that Indonesian master craftsmen's conceptualisation is greatly influenced by the strong typical mindsets of object-attribute that emphasise rationale and mastery, which stimulates a pragmatic viewpoint. Furthermore, UK master craftsmen's conceptualisation greatly considers strong typical mindsets of object-attribute that emphasise wisdom and passionate, which indicates a rigorous mind. This paper reveals that both pragmatic and rigorous mindsets can create potential or barriers for creative cognitive resources

    Estimation of user interactivity responsiveness and alertness based on eye blink -application in an e-learning environment

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    Most promising methods to deliver effective education at distance are rapidly emerging and evolving as e-learning systems. To support diverse teaching and learning paradigms, e-learning content has to be more than static online text and lackluster material. It is imperative to create a dynamic interaction between e-learning content and users. Technological advances offer new paradigms in distance education and strengthened the distance learning approach on e-learning systems’ usability and overall user experience. Distance learning is a cognitive and repetitive task, requiring learners’ attention as well as their interest. It is imperative to create a dynamic interaction between e-learning content and users. Therefore, content as well as delivery have to be supported in a highly personalised manner by e-learning systems. In this paper, the authors present a system which compiles feedback related to the behavioural state of the user (e.g. level of interaction and attention) in the context of reading an electronic document; this is achieved using eye-blink measures to identify alertness and responsiveness to the e-learning material. The real-time vision-based system used a novel evaluation approach to identify the level of alertness by performance correlated against user physiological properties (e.g. eye-blink parameters). Finally, the authors present an innovative interaction and alertness measure experiment to exemplify learner’s responsiveness to the online material presented. Therefore, when delivering content, in addition to the pragmatic functionality of an e-learning system the visual interactivity experience is emphasized as a significant feature for effective content development and delivery. This trend includes but is not limited to e-learning it can be used for microlearning, personalized learning and Massive Open Online Courses (MOOC) content development
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