Abstract: An embodiment of the present invention provides an air injection valve-integrated spray for spraying and applying polyurethane foam to a desired portion of a tire. The spray includes a polyurethane foam chamber disposed at an end of a coupling portion and keeping polyurethane foam under pressure and an air delivery chamber delivering air injected from an air injection valve to a breaking portion of the polyurethane foam chamber, in which the breaking portion of the polyurethane foam chamber is broken by air coming out of the air delivery chamber, so the polyurethane foam is sprayed.

Abstract: The present invention relates to a combustion device 100 for burning refractory hazardous gases and a burning method for the combustion device. More particularly, the combustion device 110 for burning refractory hazardous gases, which is provided in a scrubber system 1 for burning waste gases, the combustion device 110 includes: a first porous body 141; a second porous body 142; and an igniter for forming a flame surface 143 at the interior of the combustion device 110, wherein the flame surface 143 formed by the igniter is located between the first porous body 141 and the second porous body 142, and so as to form the flame surface 143, at least one of the first porous body 141 and the second porous body 142 is moved to conduct excess enthalpy combustion.

Abstract: An operating method for a room air conditioner(RAC) which is capable of enhancing an alertness level of a user based upon a human electroencephalogram(EEG), includes inputting an alertness operation mode key when the user desires to heighten an alertness degree of the user, performing an air conditioning operation to maintain a first standard temperature and a range of a temperature variation corresponding thereto to enhance the user's alertness degree, performing an air conditioning operation to maintain a second standard temperature and the range of the temperature variation corresponding thereto when the user feels cold at the first standard temperature, and to maintain a third standard temperature and the range of the temperature variation corresponding thereto when the user feels hot at the first standard temperature, repeating the second step when the user feels cold at the third standard temperature, and when the user feels hot at the second standard temperature, and performing an air conditioning oper