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    Wyświetlanie 1-3 z 3
    Tytuł:
    A Systematic Procedure for Modeling Usability Based on Product Design Variables: A Case Study in Audiovisual Consumer Electronic Products
    Autorzy:
    Kim, K.-J.
    Han, S. H.
    Yun, M. H.
    Kwahk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/90811.pdf
    Data publikacji:
    2002
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    usability evaluation
    human interface elements
    consumer electronic products
    produkty przemysłowe
    ocena zgodności wyrobów
    ocena użyteczności
    produkty elektroniczne
    Opis:
    A systematic modeling approach to describing, prescribing, and predicting usability of a product has been presented. Given the evaluation results of the usability dimension (UD) and the measurement of the product’s design variables, referred to as the human interface elements (HIEs), the approach enables one to systematically assess the relationship between the UD and HIEs. The assessed relationship is called a usability model. Once built, such a usability model can relate, in a quantitative manner, the HIEs directly to the UDs, and thus can serve as an effective aid to designers by evaluating and predicting the usability of an existing or hypothetical product. A usability model for elegance of audiovisual consumer electronic products has been demonstrated.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2002, 8, 3; 387-406
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two-Dimensional Automatic Control Modeling of a Posture Control System
    Autorzy:
    Park, K. S.
    Kim, U. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/90283.pdf
    Data publikacji:
    1998
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    posture control model
    posturography
    perturbation
    parameter identification
    model fitness
    stability
    predictability
    model kontroli
    postura
    posturografia
    identyfikacja parametrów
    fitness
    Opis:
    A posture control model has been developed on the basis of the 2-dimensional feedback control theory. Human postural characteristics were investigated in 5 healthy participants. Tests were performed with eyes open and eyes closed. After 5 s of quiet standing, each participant was unexpectedly pulled forward by 30 mm at his pelvis height and then released. Postural sway was measured over 20 s at a rate of 100 per second. Transfer functions to represent the posture control characteristic were identified by the least squares' method. These showed good results of the model's fitness, predictability, and stability. The response of the eyes-closed condition to perturbation is more oscillatory than that of the eyes-open condition. It seems that the model identified could be applicable to ergonomics, sports, or clinical situations.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 1998, 4, 4; 485-498
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Hook Handles in a Pulling Task
    Autorzy:
    Kong, Y. K.
    Freivalds, A.
    Kim, S. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/90931.pdf
    Data publikacji:
    2005
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    handle evaluation
    finger/phalange force contributions
    hook pulling task
    uchwyt narzędziowy
    kończyna górna
    ergonomia
    ocena sprzętu i wyposażenia
    pozycja przy pracy
    Opis:
    To evaluate the effect of handle design characteristics on subjective ratings and pulling forces, meat-hook handles with various handle shapes, sizes, and hook positions were tested in a pulling task. Finger and phalange force data measured by force sensitive resistors and subjective ratings of discomfort were also evaluated. Generally subjects preferred 37-mm double frustum, 30-mm oval handles followed by 30-mm double frustum handles, 37-mm oval, and 45-mm double frustum handles. In the analyses of total pulling force, 37- and 45-mm double frustum handles showed less required pulling force than the others. The averages of finger force contributions to the total pulling force were 27.2, 28.1, 23.9, and 20.8% in order from index to little fingers. The average of phalange force contributions were 28.8, 33.6, and 37.6% for the distal, middle, and proximal phalanges, respectively. The findings illustrate that the pulling finger forces and subjective discomfort ratings were related to the handle shape as well as handle size.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2005, 11, 3; 303-313
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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