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Heat Loss in Exposed Volunteers
The Journal of Trauma: Injury, Infection, and Critical Care, 1989Hypothermia is a common complication of major surgery and trauma. We studied this problem using Heat Flux Transducers to directly measure heat exchange between seven exposed volunteers and the environment. Heat exchange by radiation and convection was measured from the anterior chest wall and by conduction, between the back and a thermal mattress (CSZ,
M J, English, C, Farmer, W A, Scott
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1975
Under hot conditions the amount of heat that can be lost through sensible channels is limited. Moreover, when the dry bulb temperature and the radiant temperature are above body temperature there is a net gain of heat. Evaporative heat loss therefore becomes progressively more important for the maintenance of body temperature as the ambient temperature
D. L. Ingram, L. E. Mount
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Under hot conditions the amount of heat that can be lost through sensible channels is limited. Moreover, when the dry bulb temperature and the radiant temperature are above body temperature there is a net gain of heat. Evaporative heat loss therefore becomes progressively more important for the maintenance of body temperature as the ambient temperature
D. L. Ingram, L. E. Mount
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Directional heat losses in radiometers
Applied Optics, 1986The heat flow mechanism in thermopile-based electrically calibrated absolute radiometers has been investigated in axial as well as radial directions. Solutions for transient and for steady-state flow of heat and temperature distribution have been obtained. Error functions associated with directional losses have been calculated. It is shown that, due to
H C, Kandpal, K C, Joshi
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1965
The problem of temperature regulation is most acute for the astronaut when he is outside his vehicle and therefore disconnected from the relatively bulky machinery which normally attends to his thermal needs. It is necessary to arrange that metabolic heat is transported from the skin surface to some device which will absorb it.
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The problem of temperature regulation is most acute for the astronaut when he is outside his vehicle and therefore disconnected from the relatively bulky machinery which normally attends to his thermal needs. It is necessary to arrange that metabolic heat is transported from the skin surface to some device which will absorb it.
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Abstract This chapter covers intraoperative heat loss mechanisms leading to hypothermia. Hypothermia is an important physiologic mechanism with many perioperative risks affecting both morbidity and mortality. Identifying potential sources of heat loss, specifically related to anesthetic techniques and the environment, is integral to the ...
Samuel MacCormick, Lynn Kohan
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Samuel MacCormick, Lynn Kohan
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1984
The thermal environment affects humans and the temperature patterns on their skin surface through the transfer processes between their bodies and surroundings. The physical processes involved are basically the same both outdoors and indoors but their relative magnitude is dependent on the conditions.
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The thermal environment affects humans and the temperature patterns on their skin surface through the transfer processes between their bodies and surroundings. The physical processes involved are basically the same both outdoors and indoors but their relative magnitude is dependent on the conditions.
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Journal of Environmental Engineering, 1990
Recent developments in wastewater aeration systems have focused on aeration efficiency and minimum energy cost. Many other operating characteristics are ignored. The impact of aeration system alternatives on aeration‐basin temperature can be substantial, and design engineers should include potential effects in evaluation of alternatives.
S. N. Talati, M. K. Stenstrom
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Recent developments in wastewater aeration systems have focused on aeration efficiency and minimum energy cost. Many other operating characteristics are ignored. The impact of aeration system alternatives on aeration‐basin temperature can be substantial, and design engineers should include potential effects in evaluation of alternatives.
S. N. Talati, M. K. Stenstrom
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1982
It has been shown in a previous chapter that the value of skin temperature at a given point is the result of an equilibrium between heat received from the body core, mainly via the blood, and heat lost into the environment. In turn, skin temperature is one of the most important factors determining the transfer of detectable heat.
Y. Houdas, E. F. J. Ring
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It has been shown in a previous chapter that the value of skin temperature at a given point is the result of an equilibrium between heat received from the body core, mainly via the blood, and heat lost into the environment. In turn, skin temperature is one of the most important factors determining the transfer of detectable heat.
Y. Houdas, E. F. J. Ring
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Total heat loss, evaporative heat loss and non-evaporative heat loss of low birthweight infants
European Journal of Obstetrics & Gynecology and Reproductive Biology, 1982A. Okken, C. Blijham
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1977
It is a well-known fact that heat always flows from a hot to a cold body. A house is heated to make it more comfortable, in other words, to raise its temperature above that of the outside environment. This means that because the house is at a higher temperature than its surroundings, it loses heat to the surroundings (figure 12.1).
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It is a well-known fact that heat always flows from a hot to a cold body. A house is heated to make it more comfortable, in other words, to raise its temperature above that of the outside environment. This means that because the house is at a higher temperature than its surroundings, it loses heat to the surroundings (figure 12.1).
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