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

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    Tytuł:
    Niektóre cechy bilansu cieplnego człowieka w okresie zimowym w warunkach klimatu subpolarnego północnej Finlandii
    Some features of human heat balance during winter season in subpolar climate of Northern Finland
    Autorzy:
    Błażejczyk, K.
    Fiala, D.
    Richards, M.
    Rintamaki, H.
    Ruuhela, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/260741.pdf
    Data publikacji:
    2008
    Wydawca:
    Stowarzyszenie Klimatologów Polskich
    Tematy:
    klimat subpolarny
    bilans cieplny człowieka
    stres zimna
    ryzyko odmrożenia
    human heat balance
    subpolar climate
    cold's stress
    frostbite risk
    Opis:
    Artykuł prezentuje wyniki terenowych badań bioklimatyczno-fizjologicznych bilansu cieplnego człowieka oraz niektórych parametrów fizjologicznych organizmu w warunkach zimowych w strefie klimatu polar-nego północnej Finlandii. W trakcie badań obserwowano tempo ochładzania się temperatury twarzy oraz warunki zachowania równowagi cieplnej organizmu podczas długotrwałej ekspozycji terenowej.
    The paper presents some results of field experiment dealing with physiological adaptation to cold in arctic climate. The bioclimatic-and-physiological measurements were carried out in February 2008 in Saariselka in northern Finland. The research are the part of COST 730 Action “Towards a universal thermal climate index UTCI for assessing the thermal environment of the human being”. We have observed face cooling during long cold exposure when standing and during walking. Whole body heat balance, adaptation processes and thermal sensations were also studied. The results show great effectiveness of cold adaptation processes. Both, physiological responses of an organism (e.g. shivering) and behavioural thermal regulation (activity, clothing) help to keep homeothermy. Some risk of local skin cooling that can lead to frostbite was observed at non covered face after 20 minute exposure in –12°C and wind speed of 12-20 m/s.
    Źródło:
    Problemy Klimatologii Polarnej; 2008, 18; 89-97
    1234-0715
    Pojawia się w:
    Problemy Klimatologii Polarnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dry and Wet Heat Transfer Through Clothing Dependent on the Clothing Properties Under Cold Conditions
    Autorzy:
    Richards, M. G. M.
    Rossi, R.
    Meinander, H.
    Broede, P.
    Candas, V.
    Hartog den, E.
    Holmer, I.
    Nocker, W.
    Havenith, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/90562.pdf
    Data publikacji:
    2008
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    heat transfer
    moisture
    condensation
    wet conduction
    clothing systems
    Opis:
    The purpose of this study was to investigate the effect of moisture on the heat transfer through clothing in relation to the water vapour resistance, type of underwear, location of the moisture and climate. This forms part of the work performed for work package 2 of the European Union THERMPROTECT project. Thermal manikin results of dry and wet heat loss are presented from different laboratories for a range of 2-layer clothing with similar dry insulations but different water vapour permeabilities and absorptive properties. The results obtained from the different manikins are generally consistent with one another. For each climate, total wet heat loss is predominately dependent on the permeability of the outer layer. At 10 °C, the apparent evaporative heat loss is markedly higher than expected from evaporation alone (measured at 34 °C), which is attributed to condensation within the clothing and to increased conductivity of the wet clothing layers.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2008, 14, 1; 69-76
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of Clothing Insulation by Serial and Parallel Methods: Effects on Clothing Choice by IREQ and Thermal Responses in the Cold
    Autorzy:
    Kuklane, K.
    Gao, C.
    Holmer, I.
    Giedraityte, L.
    Brode, P.
    Candas, V.
    Hartog den, E.
    Meinander, H.
    Richards, M.
    Havenith, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/90632.pdf
    Data publikacji:
    2007
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    cold protective clothing
    insulation
    IREQ
    serial
    parallel
    calculation method
    Opis:
    Cold protective clothing was studied in 2 European Union projects. The objectives were (a) to examine different insulation calculation methods as measured on a manikin (serial or parallel), for the prediction of cold stress (IREQ); (b) to consider the effects of cold protective clothing on metabolic rate; (c) to evaluate the movement and wind correction of clothing insulation values. Tests were carried out on 8 subjects. The results showed the possibility of incorporating the effect of increases in metabolic rate values due to thick cold protective clothing into the IREQ model. Using the higher thermal insulation value from the serial method in the IREQ prediction, would lead to unacceptable cooling of the users. Thus, only the parallel insulation calculation method in EN 342:2004 should be used. The wind and motion correction equation (No. 2) gave realistic values for total resultant insulation; dynamic testing according to EN 342:2004 may be omitted.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2007, 13, 2; 103-116
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heat Gain From Thermal Radiation Through Protective Clothing With Different Insulation, Reflectivity and Vapour Permeability
    Autorzy:
    Brode, P.
    Kuklane, K.
    Candas, V.
    Den Hartog, E. A.
    Griefahn, B.
    Holmer, I.
    Meinander, H.
    Nocker, W.
    Richards, M.
    Havenith, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/90351.pdf
    Data publikacji:
    2010
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    protective clothing
    heat stress
    heat budget models
    thermal manikin
    Opis:
    The heat transferred through protective clothing under long wave radiation compared to a reference condition without radiant stress was determined in thermal manikin experiments. The influence of clothing insulation and reflectivity, and the interaction with wind and wet underclothing were considered. Garments with different outer materials and colours and additionally an aluminised reflective suit were combined with different number and types of dry and pre-wetted underwear layers. Under radiant stress, whole body heat loss decreased, i.e., heat gain occurred compared to the reference. This heat gain increased with radiation intensity, and decreased with air velocity and clothing insulation. Except for the reflective outer layer that showed only minimal heat gain over the whole range of radiation intensities, the influence of the outer garments’ material and colour was small with dry clothing. Wetting the underclothing for simulating sweat accumulation, however, caused differing effects with higher heat gain in less permeable garments.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2010, 16, 2; 231-244
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of some tensor concomitants of the metric tensor and vector fields under restricted groups of transformations
    Autorzy:
    McKiernan, M. A.
    Richards, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/717707.pdf
    Data publikacji:
    1970
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Źródło:
    Annales Polonici Mathematici; 1970, 23, 2; 139-149
    0066-2216
    Pojawia się w:
    Annales Polonici Mathematici
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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