Abstract: A photoelectric conversion element includes a light absorbing layer, a hole transport layer that transports holes generated by photoexcitation of the light absorbing layer, and a transparent conductive layer that is in contact with the hole transport layer and receives holes from the hole transport layer. The carrier density of the transparent conductive layer is more than 1×1016 cm?3 and 1×1020 cm?3 or less.

Abstract: Provided is a photoelectric conversion module capable of connecting photoelectric conversion elements with stable connection strength. The photoelectric conversion module (100) comprises a first photoelectric conversion element (10a), a second photoelectric conversion element (10b) and a connector (200). The first photoelectric conversion element (10a) and the second photoelectric conversion element (10b) are arranged side by side so as to partially overlap each other. The connector (200) is connected to the first photoelectric conversion element (10a) at a first connection portion (210). The connector (200) is connected to the second photoelectric conversion element (10b) at a second connection portion (10b) away from the first connection portion (10a).

Abstract: Provided is a photoelectric conversion module capable of improving bonding strength between photoelectric conversion elements adjacent to each other. The photoelectric conversion module (100) comprises a first photoelectric conversion element (10a) including a collector electrode (30a) and a second photoelectric conversion element (10b) including a conductive substrate (20b). The first photoelectric conversion element (10a) and the second photoelectric conversion element (10b) are arranged side by side so as to partially overlap each other. The photoelectric conversion module comprises a conductor (200) electrically connecting the collector electrode (30a) of the first photoelectric conversion element (10a) and the conductive substrate (20b) of the second photoelectric conversion element (10b) to each other. The conductor (200) is provided from a region of the collector electrode (30a) of the first photoelectric conversion element (10a) to a region outside the collector electrode (30a).

Abstract: A method for producing propylene oxide involves an oxidation step, a distillation step, an epoxidation step, and a separation step. The distillation step involves distilling the reaction mixture containing cumene hydroperoxide to separate it into a concentrate containing cumene hydroperoxide and a distillate. The reaction mixture is continuously distilled so that the ratio of the flow rate of the distillate to the flow rate of the reaction mixture to be distilled is 0.037 to 0.13. The epoxidation step involves obtaining a reaction mixture containing propylene oxide and cumyl alcohol by contacting the concentrate with propylene in the presence of a catalyst in one or more reactors to cause a reaction between propylene and cumene hydroperoxide in the concentrate, in which the outlet temperature of the final reactor is adjusted to 115° C. or more and less than 140° C.

Abstract: A method for producing propylene oxide involves an oxidation step, a distillation step, an epoxidation step, and a separation step. The distillation step involves distilling the reaction mixture containing cumene hydroperoxide to separate it into a concentrate containing cumene hydroperoxide and a distillate. The reaction mixture is continuously distilled so that the ratio of the flow rate of the distillate to the flow rate of the reaction mixture to be distilled is 0.037 to 0.13. The epoxidation step involves obtaining a reaction mixture containing propylene oxide and cumyl alcohol by contacting the concentrate with propylene in the presence of a catalyst in one or more reactors to cause a reaction between propylene and cumene hydroperoxide in the concentrate, in which the outlet temperature of the final reactor is adjusted to 115° C. or more and less than 140° C.

Abstract: A reamer includes: (a) an axially-distal-end small-diameter portion; (b) a guide portion which is axially adjacent to the small-diameter portion; (c) at least one flute which is formed in an outer circumferential surface of the reamer and which extends from the axially distal end of the reamer toward the axially distal end of the reamer; and (d) at least one land surface which is circumferentially adjacent to the flute. The land has a cutting blade portion formed therein in the axially-distal-end small-diameter portion. A first radial distance from an axis of the reamer to a radically outer end of the cutting blade portion is larger than a second radial distance from the axis to the land surface in the axially-distal-end small-diameter portion. The first radial distance is smaller than a third radial distance from the axis to the land surface in the guide portion.

Abstract: A reamer including; a generally cylindrical cutter body having (a) a flute formed in an outer circumferential surface of the cutter body and extending from an axially distal end of the cutter body toward an axially proximal end of the cutter body, (b) a cutting blade portion positioned at a longitudinally distal end of a downstream one of widthwise opposite edges of the flute as viewed in a rotating direction of the reamer, and (c) a guide portion having a guide surface which is circumferentially adjacent to the flute and which circumferentially extends over at least 240° about an axis of the cutter body. The guide surface is a part of the outer circumferential surface of the cutter body.

Abstract: In a method of processing a sealing surface of a casting to eliminate casting defects on or in the vicinity of the sealing surface, each of abrasive grains constituting a grindstone has a flat face formed on its distal end. The sealing surface of the casting is ground by the grindstone while the flat face of each abrasive grain is held parallel to the sealing surface of the casting. Consequently, a plastic flow layer is formed on the sealing surface of the casting. Blowholes present within a predetermined range of depth of the casting from the sealing surface are collapsed as the result of formation of the plastic flow layer.