Abstract: Provided are a sparkling beverage having excellent foam properties and a method for the same. A sparkling beverage according to one embodiment of the present invention has a ratio of a nitrogen content (ppm) to an extract (w/v %) of less than 28.0. A method of improving foam properties of a sparkling beverage according to one embodiment of the present invention includes adjusting a ratio of a nitrogen content (ppm) to an extract (w/v %) of a sparkling beverage to less than 28.0, to thereby improve foam properties of the sparkling beverage.

Abstract: A tap to pour beer foam onto a liquid has a flow path through which the beer foam flows. A folded section and a second extension section of the flow path are curved along a liquid surface of the liquid.

Abstract: A tap to pour beer foam onto a liquid has a flow path through which the beer foam flows. A folded section and a second extension section of the flow path are curved along a liquid surface of the liquid.

Abstract: Provided are a sparkling beverage having excellent foam properties and a method for the same. A sparkling beverage according to one embodiment of the present invention has a ratio of a nitrogen content (ppm) to an extract (w/v %) of less than 28.0. A method of improving foam properties of a sparkling beverage according to one embodiment of the present invention includes adjusting a ratio of a nitrogen content (ppm) to an extract (w/v %) of a sparkling beverage to less than 28.0, to thereby improve foam properties of the sparkling beverage.

Abstract: A process for producing spheroidal graphite cast iron includes a spheroidization treatment, an inoculant treatment and a pouring inoculation treatment. A molten iron is subjected to the spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy which contains a given amount of Ba and contains substantially no rare-earth element.

Abstract: A tap to pour beer foam onto a liquid has a flow path through which the beer foam flows. A folded section and a second extension section of the flow path are curved along a liquid surface of the liquid.

Abstract: A process for producing spheroidal graphite cast iron includes a spheroidization treatment, an inoculant treatment and a pouring inoculation treatment. A molten iron is subjected to the spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy which contains a given amount of Ba and contains substantially no rare-earth element.

Abstract: A CO.sub.2 gas sensor using a solid reference electrode in combination with a lithium ion conductive solid electrolyte which is at dissociative equilibrium with CO.sub.2 gas, characterized in that the solid reference electrode is made of a lithium containing, mixed transition metal oxide conductor which is of the same conduction type as the solid electrolyte. Further, the solid electrolyte comprises a complex carbonate containing LiAlO.sub.2 as an aggregate. Furthermore, a mixed electrode is used for the solid-electrolyte type gas sensor, which is prepared by the steps of: mixing a Au powder or paste with a powder of an oxide excluding Al.sub.2 O.sub.3 ; rendering a resultant mixture to a paste; applying the paste onto a solid electrolyte; and sintering the applied paste.