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Wyszukujesz frazę "postural load" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Analysis of Postural Load During Tasks Related to Milking Cows—A Case Study
    Autorzy:
    Groborz, A.
    Tokarski, T.
    Roman-Liu, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/90722.pdf
    Data publikacji:
    2011
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    postural load
    milking cows
    case study
    Opis:
    The aim of this study was to analyse postural load during tasks related to milking cows of 2 farmers on 2 different farms (one with a manual milk transport system, the other with a fully automated milk transport system) as a case study. The participants were full-time farmers, they were both healthy and experienced in their job. The Ovako Working Posture Analyzing System (OWAS) was used to evaluate postural load and postural risk. Postural load was medium for the farmer on the farm with a manual milk transport system and high for the farmer working on the farm with a fully automated milk transport system. Thus, it can be concluded that a higher level of farm mechanization not always mean that the farmer’s postural load is lower, but limitation of OWAS should be considered.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2011, 17, 4; 423-432
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heuristic Procedure for the Assembly Line Balancing Problem With Postural Load Smoothness
    Autorzy:
    Jaturanonda, C.
    Nanthavanij, S.
    Das, S. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/90459.pdf
    Data publikacji:
    2013
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    assembly line balancing
    postural load smoothness
    upper extremities disorders
    RULA
    linia montażowa
    obciążenie
    kończyny górne
    Opis:
    This paper presents a heuristic procedure for assigning assembly tasks to workstations where both productivity and ergonomics issues are considered concurrently. The procedure uses Kilbridge and Wester’s algorithm to obtain an initial task–workstation assignment solution which minimizes the balance delay of an assembly line. A task reassignment algorithm was applied to improve the initial solution by exchanging assembly tasks, which smooth postural load among workers, between workstations. A composite index of variation was used to measure the effectiveness of the task–workstation assignment solution. On the basis of clothes assembling, it was found that the task–workstation assignment solution with a minimum composite index of variation can be obtained with relatively equal weights in balance delay and postural load.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 531-541
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of External Load at Varying Hand Positions on Perceived Discomfort
    Autorzy:
    Kee, D.
    Na, S.
    Chung, M. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/90584.pdf
    Data publikacji:
    2013
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    perceived discomfort
    postural stress
    external load
    hand position
    pozycja przy pracy
    pozycja ręki
    dyskomfort
    obciążenie zewnętrzne
    Opis:
    The purpose of this study was to assess the effect of external load at varying hand positions on discomfort, and to provide a new classification of external load. An experiment was carried out in which 16 postures with an external load of 0, 1.5, 3 kg were tested. The postures were controlled by 2 independent variables of hand distance and hand height. The subjects were instructed to rate their perceived discomfort with magnitude estimation after holding a given posture for 1 min. Analysis of variance (ANOVA) exhibited that the main effects of the 3 independent variables were statistically significant for discomfort. Discomfort increased linearly with external load and hand distance. Hand height showed a quadratic relation with discomfort, which exhibited a slightly different trend from hand distance and external load. Based on the results, a new classification of external load was proposed with 3 classes grouped by perceived discomfort.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2013, 19, 3; 397-408
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sitting Posture, Postural Discomfort, and Visual Performance: A Critical View on the Interdependence of Cognitive and Anthropometric Factors in the VDU Workplace
    Autorzy:
    Ziefle, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/89734.pdf
    Data publikacji:
    2003
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    sitting posture
    postural discomfort
    muscular load
    VDU workplaces
    standard workplace adjustment
    individual workplace adjustment
    anthropometric factors
    ergonomia
    komputer
    pozycja przy pracy
    pozycja siedząca
    fizjologia pracy
    stanowiska pracy
    Opis:
    The study focuses on individual and standard visual display unit (VDU) workplaces with respect to performance and muscular load. Three different work settings were realized: The workplace was either adjusted to individual preferences or to the European standard. The third condition mirrored exactly the individual setting, however participants were told that it was set according to another standard. Dependent variables were visual performance in a search task, the rated muscular load, and individual preferences. Results show that both individual work settings yielded a superior performance as compared to the standard. However, performance and muscular comfort improved when participants knew they had adjusted the workplace. Apparently, VDU users follow a intuitive rationale adjusting their work setting minimizing muscular load and optimizing performance.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2003, 9, 4; 503-514
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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