In gas-liquid system, the bigger the resistance ratio of liquid side to gas side is, the more remarkable the enhancement of mass transfer by Marangoni effect becomes.

However, by using an oily liquid and an aqueous one, and by covering one side of the channel with a substance that repels water and the other side with one that attracts water, this can be avoided.

His wife drank bittern, a bitter liquid that many farmers keep on hand to solidify soy milk for tofu. "When I found her, she was lying on this bed, with a bowl by her side, " Sun recalled.