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Wyszukujesz frazę "thermal foot model" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    A Comparison of Two Methods of Determining Thermal Properties of Footwear
    Autorzy:
    Kuklane, K.
    Holmer, I.
    Afanasieva, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/90826.pdf
    Data publikacji:
    1999
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    standard
    thermal insulation
    footwear
    thermal foot model
    stopy
    obuwie
    izolacja cieplna
    Opis:
    The present European Standard for footwear testing (Standard No. EN 344:1992; European Committee for Standardization [CEN], 1992) classifies footwear thermally by a temperature drop inside the footwear during 30 min at defined conditions. Today, other methods for footwear thermal testing are also available. The aim of this study was to compare EN 344:1992 with a thermal foot method. Six boots were tested according to both methods. Additional tests with modified standard tests were also carried out. The methods ranked the footwear in a similar way. However, the test according to standard EN 344:1992 is a pass-or-fail test, whereas data that is gained from the thermal foot method gives more information and allows further use in research and product development. A change of the present standard method is suggested.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 1999, 5, 4; 477-484
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Heat Loss from the Feet and Insulation of the Footwear
    Autorzy:
    Kuklane, K.
    Afanasieva, R.
    Burmistrova, O.
    Bessonova, N.
    Holmer, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/90620.pdf
    Data publikacji:
    1999
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    foot
    thermal insulation
    footwear
    thermal foot model
    skin temperature
    heat loss
    stopy
    obuwie
    izolacja cieplna
    temperatura skóry
    Opis:
    This study compared the methods of determining footwear insulation on human participants and a thermal foot model. Another purpose was to find the minimal number of measurement points on the human foot that is needed for insulation calculation. A bare foot was tested at 3 ambient temperatures on 6 participants. Three types of footwear were tested on 2 participants. The mean insulation for a bare foot obtained on the participant and model were similar. The insulation of warm footwear measured by the 2 methods was also similar. For thin footwear the insulation values from the participants were higher than those from the thermal model. The differences could be related to undefined physiological factors. Two points on the foot can be enough to measure the insulation of footwear on human participants (r = .98). However, due to the big individual differences of humans, and good repeatability and simplicity of the thermal foot method, the latter should be preferred for testing.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 1999, 5, 4; 465-476
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Footwear Insulation Values Measured on a Thermal Foot Model
    Autorzy:
    Kuklane, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/90535.pdf
    Data publikacji:
    2004
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    thermal foot model
    cold protective footwear
    thermal insulation
    cold exposure limit
    thermal sensation
    pain sensation
    obuwie ochronne
    ochrony nóg
    izolacja cieplna
    ochrona przed zimnem
    zimno
    Opis:
    The use of physiological data from human tests in modelling should consider background data, such as activity, environmental factors and clothing insulation on the whole body. The present paper focuses on local thermal comfort of feet with special attention on the effects of physical changes of footwear thermal properties. An alternative test method is available for footwear thermal testing besides the standard method. The possibility to use insulation values acquired on a thermal foot model in practice is shown here. The paper describes the correlation between cold and pain sensations, and foot skin temperatures of the subjects and relates these to insulation measured on a thermal foot model. Recommendations are made for footwear choice according to environmental temperature.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2004, 10, 1; 79-86
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Sweating on Insulation of Footwear
    Autorzy:
    Kuklane, K.
    Holmer, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/90320.pdf
    Data publikacji:
    1998
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    sweating
    thermal foot model
    insulation of footwear
    cold protection
    safety shoes
    steel toe cap
    obuwie ochronne
    ochrona przed zimnem
    testowanie obuwia
    Opis:
    The study aimed to find out the influence of sweating on footwear insulation with a thermal foot model. Simultaneously, the influence of applied weight (35 kg), sock, and steel toe cap were studied. Water to 3 sweat glands wassupplied with a pump at the rate of 10 g/hr in total. Four models of boots with steel toe caps were tested. The same models were manufactured also without steel toe. Sweating reduced footwear insulation 19-25% (30-37% in toes). During static conditions, only a minimal amount of sweat evaporated from boots. Weight affected sole insulation: Reduction depended on compressibility of sole material. The influence of steel toe varied with insulation. The method of thermal foot model appears to be a practical tool for footwear evaluation.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 1998, 4, 2; 123-136
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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