Effects of ventilation openings in industrial safety helmets on evaporative heat dissipation
نویسندگان
چکیده
منابع مشابه
Effects of clothing ventilation openings on thermoregulatory responses during exercise
The effect of clothing openings on thermoregulatory responses of wearers during a treadmill exercise in controlled laboratory conditions has been studied. Nine short sleeved T-shirts with varying design of clothing openings at neck and hem have been designed, and the test is performed on six males, considering 10min of standing rest, 30min of running at 55% of VO2max followed by 10min of rest. ...
متن کاملSafety helmets
helmet of the water flea (Daphnia spp.) does not make it invisible, but it does confer some protection against predators by making the fleas harder to catch. Water fleas do not necessarily begin life with a helmet but can form one as a morphological defence in response to chemicals released by their predators. The images above show three pairs of water fleas from different species; the non-helm...
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flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
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ژورنال
عنوان ژورنال: Journal of Occupational Health
سال: 2019
ISSN: 1348-9585
DOI: 10.1002/1348-9585.12024