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  • 11
    Electronic Resource
    Electronic Resource
    Solar heat load on man (1993)
    Springer
    International journal of biometeorology 37 (1993), S. 125-132 
    Details
    ISSN: 1432-1254
    Keywords: Heat load ; Mean skin temperature ; Solar radiation ; Clothing ; Mean radiant temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Different methods have been compared for the estimation of solar heat load on man. The comparison comprised several methods based on the calculation of absorbed solar radiation and one method for calculation of mean radiant temperature (Mrt). Regression analysis was carried out for predicted values and values calculated for a vertical cylinder, assumed as an analog model of a standing man. Regression of mean skin temperature, measured in 10 subjects exposed to solar radiation under a variety of climatic conditions, on predicted radiant heat load was also analysed. Mean skin temperature correlated best withMrt, accounting for more than 50% of the variance. The results indicated that three methods provide a realistic estimation of the radiation heat load, whereas some methods show deviations of several hundred per cent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01212621
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Finger cooling by contact with cold aluminium surfaces — effects of pressure, mass and whole body thermal balance (1994)
    Springer
    European journal of applied physiology 69 (1994), S. 55-60 
    Details
    ISSN: 1439-6327
    Keywords: Skin temperature ; Model ; Finger morphology ; Threshold limit value
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Finger skin temperature change during contact with a cold aluminium surface was studied in 20 subjects (10 men and 10 women). Contact pressure (0.1 N, 5.9 N and 9.8 N), contact material mass (large one, mass 3559 g, small one, mass 108 g), surface temperatures (−7°C, 0°C, +7°C) and whole body thermal balance were controlled as independent factors. The contact experiments were performed in a small chamber and only the first section of the index finger of the left hand was in contact with the aluminium surface. The results indicated that all the factors studied had significant effects on the contact skin temperature change with time. The study confirmed that a modified Newtonian model with two components can accurately describe the contact skin temperature change with time. The study resulted in three predictive models for critical skin temperature when in contact with cold aluminium. The results indicated that metal surfaces in contact with bare hands should not be below 4°C surface temperature. Lower temperatures require insulating material or the wearing of protective gloves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00867928
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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