Abstract: A mixer device, a player and a reproduction system and the like are provided which enable a user to acknowledge at the player side whether reproduction signals being reproduced with the player are in an on-air state (whether it is output from the mixer device side) and can prevent mistaken operations by the user. The mixer device 20 is connected to one or more players 10 and outputs reproduction signals being reproduced with the player 10 to an output device 30, and further outputs an on-air signal indicating that the reproduction signals are output to the output device 30 (being in an on-air state) to the player 10 as input source of the reproduction signals.

Abstract: A heat treatment equipment having a heating chamber having a plurality of regenerative combustors provided with direct-fired burner having a built-in porous regenerator, for applying a heat treatment to an object in the heating chamber, wherein the substantial average surface pore diameter is not uniform for porous regenerators in a plurality of direct-fired burners or a plurality of regenerative combustors. By making contrivances in the shape of porous regenerators of the direct-fired burners or the regenerative heat exchangers arranged in an area where substances causing choking tend to easily adhere to make it difficult for such substances to adhere or prevent choking phenomenon from becoming apparent.

Abstract: In an alumina honeycomb structural body according to a first aspect of the invention and another invention relating it, the alumina honeycomb structural body is constructed in such a manner that alumina is a main ingredient and an amount of impurities is limited to not greater than 2 weight %. Moreover, in an alumina honeycomb structural body according to a second aspect of the invention and another invention relating it, the alumina honeycomb structural body is constructed in such a manner that an amount of alumina as a main ingredient is limited to not less than 98 weight %; an amount of Na containing compound is limited to 0.02 weight %-1.0 weight % of Na2O when converting it into oxide; and remainder is impurities.

Abstract: An image information reproducing apparatus generates a video signal carrying an original image from a read signal acquired from an image information recording medium, prepares a manually-input image to be superimposed on the original image in accordance with an operational input, thereby generating a manually-input image signal, generates a mixed image signal carrying a mixed image having the manually-input image superimposed on the original image, based on the video signal and the manually-input image signal, and stores the manually-input image signal in association with address information in the recording medium of a video signal corresponding to the original image on which the manually-input image is superimposed.

Abstract: A honeycomb regenerator for receiving a waste heat in an exhaust gas by passing an exhaust gas and a gas to be heated alternately therethrough, which is constructed by stacking a plurality of honeycomb structural bodies, is disclosed. In the honeycomb regenerator according to the invention, cell open rates of the honeycomb structural bodies positioned at an inlet portion of the exhaust gas and at an inlet portion of the gas to be heated are larger than those of the honeycomb structural bodies positioned at a center portion.

Abstract: An exhaust gas-treating process by capturing particulates in exhaust gas discharged from an internal combustion engine with use of a honeycomb structural filter, the process including the steps of: (1) capturing the particulates contained in the exhaust gas by passing the exhaust gas through the filter; (2) stopping flow of the exhaust gas through the filter and transferring the captured particulates to a location remote from and outside an exhaust line by flowing the particulates captured by the filter in a direction reverse to a flowing direction of the exhaust gas; and (3) burning the particulates and discharging a burnt matter outside. The filter preferably has a honeycomb structural body and second sealed portions in first and second rows at opposite ends of the honeycomb structural body, respectively.