Abstract: A power transmission coupler void space (20) and a power transmission hose void space (21) are allowed to communicate with each other. A viscous resin (D) is sealed in each of the power transmission coupler void space (20) and the power transmission hose void space (21). A power reception coupler void space (22) and a power reception hose void space (23) are allowed to communicate with each other. A viscous resin (D) is sealed in each of the power reception coupler void space (22) and the power reception hose void space (23).

Abstract: A combuster (2) of a gas turbine engine (1) is fed with gaseous ammonia and that gaseous ammonia is burned to drive a turbine (3). Inside the exhaust passage of the gas turbine engine (1), an NOx selective reduction catalyst (10) is arranged. Inside one or both of the intake passage of the gas turbine engine (1) or the exhaust passage upstream of the NOx selective reduction catalyst (10), ammonia is fed. This ammonia is used to reduce the NOx which is contained in the exhaust gas at the NOx selective reduction catalyst (10).

Abstract: A combuster (2) of a gas turbine engine (1) is fed with gaseous ammonia and that gaseous ammonia is burned to drive a turbine (3). Inside the exhaust passage of the gas turbine engine (1), an NOx selective reduction catalyst (10) is arranged. Inside one or both of the intake passage of the gas turbine engine (1) or the exhaust passage upstream of the NOx selective reduction catalyst (10), ammonia is fed. This ammonia is used to reduce the NOx which is contained in the exhaust gas at the NOx selective reduction catalyst (10).

Abstract: A combuster (2) of a gas turbine engine (1) is fed with liquid ammonia and that liquid ammonia is burned to drive a turbine (3). Inside the exhaust passage of the gas turbine engine (1), an NOX selective reduction catalyst (9) is arranged. Inside the intake air which flows into the compressor (4), liquid ammonia is fed. This liquid ammonia is used to cool the intake air. The NOX which is contained in the exhaust gas is reduced by the unburned ammonia which is exhausted into the exhaust passage by the NOX selective reduction catalyst (9).

Abstract: The semiconductor light-emitting element uses a compound semiconductor quantum well structure comprising a well layer, and barrier layers between which the well layer is sandwiched, as an active layer. In the adjacent well layer and barrier layers of the semiconductor light-emitting element, the well layer has in part a doped well region to which an n-type impurity is added at the interface with the barrier layer on the electron injection side, and in the vicinity of this interface, and the barrier layer has a doped barrier region to which the n-type impurity is added at least at the interface and in the vicinity of this interface.

Abstract: The present invention provides a glass-ceramic suitable as a material for forming a reflecting mirror substrate. The glass-ceramic has celsian as a primary crystal phase and contains SiO2, Al2O3, BaO, and TiO2 as primary components and at least Li2O as a modification component, wherein the amount of Li2O is within a range of 0.05 to 1.0 wt. %. The glass-ceramic is substantially formed of a crystal phase of celsian alone, that is, the glass-ceramic is substantially free from hexacelsian crystal phase.

Abstract: An object of the present invention is to provide a glass-ceramic which is suitable as a material for forming a reflecting mirror substrate.