نتایج جستجو برای: radiant heat
تعداد نتایج: 204284 فیلتر نتایج به سال:
BACKGROUND Increasing radiant exposure offers a means to increase treatment efficacy during laser-mediated treatment of vascular lesions, such as port-wine stains; however, excessive radiant exposure decreases selective vascular injury due to increased heat generation within the epidermis and collateral damage to perivascular collagen. OBJECTIVE To determine if cryogen spray cooling could be ...
Guinea pigs have been exposed to suberythema doses of soft x-rays, to radiant heat of intensity about critical for producing slight burns, and to both radiations simultaneously. No erythema was produced in the skin of the animals exposed to x-rays alone and only slight burns resulted in 50 per cent of the animals exposed to heat radiation alone. The animals exposed to heat and x-radiation simul...
Social insects show a variety of temperature-guided behaviors. Depending on whether heat reaches the sensillum via air movements (convective heat) or as radiant heat, specific adaptations of thermo-sensitive sensilla are expected. In the present study the morphology and the physiology of thermo-sensitive peg-in-pit sensilla (S. coeloconica) of the leaf-cutting ant Atta vollenweideri were invest...
11 One of the objectives of the present study is to gain a deeper understanding of the heat 12 transfer mechanisms that control the spread of wildfires. Five experimental fires were 13 conducted in the field across on plots of living vegetation. The lengths of the ignition lines 14 were set in the range of 20–30 m to reproduce wildfire front conditions as closely as possible. 15 The experiments...
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