Abstract: A fuel cell system includes a fuel cell stack that generates electricity using fuel and oxidant gases, a reformer that produces the fuel gas by reforming a raw material, a raw material feeder that supplies the raw material to the reformer, a combustor that combusts anode off-gas discharged from the anode of the fuel cell stack, and a controller that controls the raw material feeder. The period of a load-following operation in which the power output of the fuel cell stack shifts from a lower level to a higher level, is divided into multiple sub-periods. For each sub-period, a ratio is determined from the increase amounts in the flow rate of the raw material during the sub-period and the length of the sub-period. The controller controls the raw material feeder to make a ratio on the higher output side smaller than another on the lower output side.

Abstract: A proton conductor is a proton conductor represented by a composition formula of BaZr1?x?yYxInyO3, and x and y in the composition formula satisfy 0<y?0.013 and 0<x+y<0.5. A small amount of In is added to the composition in a predetermined range, whereby a resistance of the crystal grain boundary of the proton conductor can be decreased so as to compensate for or even exceed the increase in resistance in the crystal gains of the proton conductor caused by the addition of In, and as a result, the entire resistance can be decreased.

Abstract: A membrane electrode assembly includes an electrode consisting of at least one compound selected from the group consisting of lanthanum strontium cobalt complex oxide, lanthanum strontium cobalt iron complex oxide, and lanthanum strontium iron complex oxide, or consisting of a composite of the at least one compound and an electrolyte material, and a first solid electrolyte membrane represented by a composition formula of BaZr1?xLuxO3?? (0<x<1). The electrode is in contact with the first solid electrolyte membrane.

Abstract: A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZr1-x1M1x1O3 (M1 represents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A° to less than 0.880 A°, and 0<x1<1 holds) and a second compound having a composition represented by BaZr1-x2Tmx2O3 (0<x2<0.3 holds).

Abstract: A membrane electrode assembly includes an electrode consisting of at least one compound selected from the group consisting of lanthanum strontium cobalt complex oxide, lanthanum strontium cobalt ferrite complex oxide, lanthanum strontium ferrite complex oxide, and lanthanum nickel ferrite complex oxide or consisting of a composite of the compound and an electrolyte material, and a first solid electrolyte membrane represented by a composition formula of BaZr1-xlnxO3?? (0<x<1). The electrode is in contact with the first solid electrolyte membrane.

Abstract: A membrane electrode assembly includes an electrode consisting of lanthanum strontium cobalt complex oxide or consisting of a composite of lanthanum strontium cobalt complex oxide and an electrolyte material, and a first solid electrolyte membrane represented by a composition formula of BaZr1-xYbxO3-? (0<x<1). The electrode is in contact with the first solid electrolyte membrane.

Abstract: A proton conductor is a proton conductor represented by a composition formula of BaZr1-x-yYxInyO3, and x and y in the composition formula satisfy 0<y?0.013 and 0<x+y<0.5.

Abstract: The present invention provides a fuel cell comprising a cathode, an electrolyte membrane, and an anode. The electrolyte membrane is sandwiched between the cathode and the anode. The cathode is formed of a first proton conductor represented by the following chemical formula Aa(BbMm)O3-x (where A represents a divalent metal, B represents a tetravalent metal, M represents a trivalent metal, 2(3?x)=2a+4b+3m, b+m=1, and x=(3?2a?b)/2) and a mixed ionic electronic conductor. The electrolyte membrane is formed of a second proton conductor represented by the following chemical formula A?a?(B?b?M?m?)O3-x? (where A? represents a divalent metal, B? represents a tetravalent metal, M? represents a trivalent metal, 2(3?x?)=2a?+4b?+3m?, b?+m?=1, and x?=(3?2a??b?)/2). The following mathematical formula m?m? is satisfied. The electric power generation efficiency is improved.

Abstract: A biological information measurement device includes near-infrared cameras capable of detecting pupils of an object person, a detection unit capable of detecting pupil areas from pieces of image data obtained by the near-infrared cameras, a luminance acquisition unit that acquires luminances of skin areas serving as at least portions of the peripheries of the pupil areas, and a biological measurement unit that measures biological information of the object person from the luminances.

Abstract: Disclosed is an imaging apparatus capable of enlarging a portion of an image captured by an imaging device of a fisheye camera and displaying the enlarged image on a display screen with little distortion. The imaging apparatus enlarges a section, which is a portion of an image captured by a fisheye camera, and displays the section on a display screen such that the enlargement ratios of points in the section are different from each other. An image processing method uses a change function that changes the enlargement ratio of a field angle depending on the place is used, and converts a portion of the captured image into a central projection image to generate a display image. The use of the change function makes it possible to generate a display image having high visibility.

Abstract: Disclosed is an imaging apparatus capable of enlarging a portion of an image captured by an imaging device of a fisheye camera and displaying the enlarged image on a display screen with little distortion. The imaging apparatus enlarges a section, which is a portion of an image captured by a fisheye camera, and displays the section on a display screen such that the enlargement ratios of points in the section are different from each other. An image processing method uses a change function that changes the enlargement ratio of a field angle depending on the place is used, and converts a portion of the captured image into a central projection image to generate a display image. The use of the change function makes it possible to generate a display image having high visibility.

Abstract: In order to provide a paper-feeding stepping motor driving method which inhibits the torque of a paper-feeding stepping motor of a line-type thermal printer, which is driven in response to the divisional energization of heating elements, from excessively increasing during dynamic division printing, and which achieves noise reduction and energy conservation, while a driving signal to be applied to the paper-feeding stepping motor is active, an active pulse is subdivided.

Abstract: In order to provide a paper-feeding stepping motor driving method which inhibits the torque of a paper-feeding stepping motor of a line-type thermal printer, which is driven in response to the divisional energization of heating elements, from excessively increasing during dynamic division printing, and which achieves noise reduction and energy conservation, while a driving signal to be applied to the paper-feeding stepping motor is active, an active pulse is subdivided.