论文部分内容阅读
儿童冷天别丢帽许多家长当严冬来临之际,往往疏漏或误认为给孩子戴不戴防寒帽关系不大。其实,头部是机体重要的散热部位。有学者调研认为,当温度15摄氏度时,自头部散失的热量占人体总散失热量的30％;而当周边温度降低达零下15摄氏度时,从头部散失的热量则占到人体总散失热量的75％。由此可见,头部戴帽保暖与人体保暖及热平衡存在十分密切的关系。
Cold children do not drop the hat Many parents when the winter is approaching, often omissions or mistakenly believe that the children do not wear a cold hat wearing little relationship. In fact, the head is the body’s important cooling site. According to some scholars’ research, when the temperature is 15 degrees Celsius, the heat dissipated from the head accounts for 30% of the total heat loss of the human body. When the ambient temperature drops to minus 15 degrees Celsius, the heat lost from the head accounts for the total heat lost to the human body Of 75%. This shows that the head wearing a warm hat and the body thermal balance and there is a very close relationship.