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Wyszukujesz frazę "Ziefle, M." wg kryterium: Autor


Wyświetlanie 1-2 z 2
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
Tytuł:
Visual Costs of the Inhomogeneity of Luminance and Contrast by Viewing LCD-TFT Screens Off-Axis
Autorzy:
Ziefle, M.
Groeger, T.
Sommer, D.
Powiązania:
https://bibliotekanauki.pl/articles/90918.pdf
Data publikacji:
2003
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
TFT-LCD
anisotropic characteristics
viewing angle
visual performance
luminance
contrast
off-axis
kontrast światła
fizjologia pracy
komputer
monitor
ekran
luminancja
Opis:
In this study the anisotropic of TFT-LCD (Thin-Film-Transistor-Liquid Crystal Display) screens were examined. Anisotropy occurs as the distribution of luminance and contrast changes over the screen surface due to different viewing angles. On the basis of detailed photometric measurements the detection performance in a visual reaction task was measured in different viewing conditions. Viewing angle (0°, front al view; 30°, off-axis; 50°, off-axis) as well as ambient lighting (a dark of illuminated room) were varied. Reaction times and accuracy of detection performance were recorded. Results showed TFT’s anisotropy to be a crucial factor deteriorating performance. With an increasing viewing angle performance decreased. It is concluded that TFT’s anisotropy is a limiting factor for overall suitability and usefulness of this new display technology.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2003, 9, 4; 515-525
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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