Abstract: Conventionally, high-level communication using the message cannot be achieved. The high-level communication using the message can be achieved by a message transmission device including a component candidate group storage unit capable of storing one or more component candidate groups including two or more groups of component candidates forming a content, an input reception unit configured to receive an input for constituting a content including one or more components determined by the selection of one component candidate from two or more component candidates included in one component candidate group, a content constitution unit configured to constitute the content by using the selected one or more components according to the input, and a message transmission unit configured to transmit a message including the content.

Abstract: Conventionally, high-level communication using the message cannot be achieved. The high-level communication using the message can be achieved by a message transmission device including a component candidate group storage unit capable of storing one or more component candidate groups including two or more groups of component candidates forming a content, an input reception unit configured to receive an input for constituting a content including one or more components determined by the selection of one component candidate from two or more component candidates included in one component candidate group, a content constitution unit configured to constitute the content by using the selected one or more components according to the input, and a message transmission unit configured to transmit a message including the content.

Abstract: A gas burner having flame openings adapted for discharging a mixture of gaseous fuel and primary combustion air supplied from an electric fan, and secondary air supply passages adapted for supplying secondary combustion air from the electric fan into a combustion space adjacent the flame openings. The gas burner is characterized by opposed combustion face forming wall members extending from the sides of the flame openings, in the mixed gas discharge direction and at the same time diverging outwardly with the secondary combustion air outlet openings formed continuously or intermittently along lines extended from both ends of the flame openings on the faces of the wall members towards the direction of mixed gas flow.