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Wyszukujesz frazę "Gao, K." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Test of Firefighter’s Turnout Gear in Hot and Humid Air Exposure
Autorzy:
Holmer, I.
Kuklane, K.
Gao, C.
Powiązania:
https://bibliotekanauki.pl/articles/90221.pdf
Data publikacji:
2006
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
body temperature
heat stress
physiological strain
protective clothing
odzież ochronna
straż pożarna
pożar
temperatura powietrza
temperatura ciała
stres
zagrożenia zawodowe
strażak
Opis:
Five students of a rescue training school cycled at 50 W for 20 min at 20 oC before walking at 5 km/hr up to 30 min in a climatic chamber at 55 oC and 30% relative humidity. 4 different types of clothing ensembles differing in terms of thickness and thermal insulation value were tested on separate days. All subjects completed 28–30 min in light clothing, but quit after 20–27 min in 3 firefighter ensembles due to a rectal temperature of 39 oC or subjective fatigue. No difference in the evolution of mean skin or rectal temperature was seen for the 3 turnout ensembles. Sweat production amounted to about 1000 g in the turnout gears of which less than 20% evaporated. It was concluded that the small differences between the turnout gears in terms of design, thickness and insulation value had no effect on the resulting heat physiological strain for the given experimental conditions.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2006, 12, 3; 297-305
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Review of Technology of Personal Heating Garments
Autorzy:
Wang, F.
Gao, C.
Kuklane, K.
Holmer, I.
Powiązania:
https://bibliotekanauki.pl/articles/89962.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
energy save
cold protection
personal heating garment (PHG)
human comfort
Opis:
Modern technology makes garments smart, which can help a wearer to manage in specific situations by improving the functionality of the garments. The personal heating garment (PHG) widens the operating temperature range of the garment and improves its protection against the cold. This paper describes several kinds of PHGs worldwide; their advantages and disadvantages are also addressed. Some challenges and suggestions are finally addressed with regard to the development of PHGs.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 3; 387-404
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parallel and Serial Methods of Calculating Thermal Insulation in European Manikin Standards
Autorzy:
Kuklane, K.
Gao, C.
Wang, F.
Holmer, I.
Powiązania:
https://bibliotekanauki.pl/articles/90483.pdf
Data publikacji:
2012
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
thermal manikin
European standard
clothing insulation
serial calculation method
parallel calculation method
human subject studies
Opis:
Standard No. EN 15831:2004 provides 2 methods of calculating insulation: parallel and serial. The parallel method is similar to the global one defined in Standard No. ISO 9920:2007. Standards No. EN 342:2004, EN 14058:2004 and EN 13537:2002 refer to the methods defined in Standard No. EN ISO 15831:2004 for testing cold protective clothing or equipment. However, it is necessary to consider several issues, e.g., referring to measuring human subjects, when using the serial method. With one zone, there is no serial–parallel issue as the results are the same, while more zones increase the difference in insulation value between the methods. If insulation is evenly distributed, differences between the serial and parallel method are relatively small and proportional. However, with more insulation layers overlapping in heavy cold protective ensembles, the serial method produces higher insulation values than the parallel one and human studies. Therefore, the parallel method is recommended for standard testing.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2012, 18, 2; 171-179
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
    Wyświetlanie 1-4 z 4

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