Abstract: A power supply device includes a power supply circuit configured to output different voltages to a plurality of output lines, a plurality of capacitors provided in correspondence with the plurality of output lines, one end of each of the plurality of capacitors being coupled to a corresponding output line of the plurality of output lines and an other end thereof being coupled to a ground potential, a plurality of diodes provided in correspondence with the plurality of output lines, anodes of the plurality of diodes being coupled to the corresponding output lines and cathodes thereof being commonly coupled, and a discharge resistor coupled to the cathodes of the plurality of diodes.

Abstract: A power supply device includes a power supply circuit configured to output different voltages to a plurality of output lines, a plurality of capacitors provided in correspondence with the plurality of output lines, one end of each of the plurality of capacitors being coupled to a corresponding output line of the plurality of output lines and an other end thereof being coupled to a ground potential, a plurality of diodes provided in correspondence with the plurality of output lines, anodes of the plurality of diodes being coupled to the corresponding output lines and cathodes thereof being commonly coupled, and a discharge resistor coupled to the cathodes of the plurality of diodes.

Abstract: A power supply device includes a power supply circuit configured to generate a direct current output voltage to be applied to both ends of a plurality of loads serially coupled, a detection circuit configured to detect an anomaly of a load voltage applied to each of the plurality of loads, and an adjustment circuit configured to decrease the output voltage in accordance with a number of abnormal loads where the anomaly is detected among the plurality of loads.

Abstract: A power supply device includes a power supply circuit configured to generate a direct current output voltage to be applied to both ends of a plurality of loads serially coupled, a detection circuit configured to detect an anomaly of a load voltage applied to each of the plurality of loads, and an adjustment circuit configured to decrease the output voltage in accordance with a number of abnormal loads where the anomaly is detected among the plurality of loads.

Abstract: Each of the power supply units in a power supply apparatus includes a voltage conversion circuit that converts input voltage into output voltage within a predetermined voltage range an output capacitor that outputs supply power while accumulating charges according to the voltage converted by the voltage conversion circuit, and an overload detection circuit that detects an overload of the output capacitor and when the overload is detected, notifies an apparatus operated using the power supplied from the power supply apparatus of an overload signal requesting a suppression of power consumption.

Abstract: Each of the power supply units in a power supply apparatus includes a voltage conversion circuit that converts input voltage into output voltage within a predetermined voltage range an output capacitor that outputs supply power while accumulating charges according to the voltage converted by the voltage conversion circuit, and an overload detection circuit that detects an overload of the output capacitor and when the overload is detected, notifies an apparatus operated using the power supplied from the power supply apparatus of an overload signal requesting a suppression of power consumption.

Abstract: A rush current suppression circuit is used with a power supply circuit which includes a common line and an input voltage detection circuit and supplies power from an input power supply via a switching circuit. There is provided a smoothing capacitor coupled to an output end of the power supply circuit, and a rapid discharge and delay circuit coupled to the input voltage detection circuit and carrying out a rapid discharge and a time delay and controlling the switching circuit. The switching circuit includes two FETs which are coupled in series to the common line, and the two FETs have sources which are coupled to each other and gates which are coupled to each other and driven by the rapid discharge and delay circuit.

Abstract: A rush current suppression circuit is used with a power supply circuit which includes a common line and an input voltage detection circuit and supplies power from an input power supply via a switching circuit. There is provided a smoothing capacitor coupled to an output end of the power supply circuit, and a rapid discharge and delay circuit coupled to the input voltage detection circuit and carrying out a rapid discharge and a time delay and controlling the switching circuit. The switching circuit includes two FETs which are coupled in series to the common line, and the two FETs have sources which are coupled to each other and gates which are coupled to each other and driven by the rapid discharge and delay circuit.

Abstract: A magneto-optical recording medium comprises, on a substrate, a reflective layer, a first dielectric layer, a recording layer, and a second dielectric layer successively in this order, for being irradiated with a recording or reproducing light beam coming from a side of the second dielectric layer. A diamond-like carbon layer as a self-lubricating layer is formed on the second dielectric layer. An optical head comprises a floating type slider installed with a solid immersion lens. A protective film having a self-lubricating property may be also formed on a bottom surface of the slider opposing to the optical recording medium. Even when the floating position of the optical head is varied, and the optical head contacts with the surface of the optical recording medium, then the sliding scratch scarcely occurs, because the optical head smoothly glides on the recording medium surface. A lubricating layer may be further formed on the self-lubricating layer.

Abstract: A cavity surface-forming plate of a mold for injection-molding a plastic substrate is coarsely polished, and then a surface for defining a cavity is applied with electroless Ni—P plating. The surface of the plating is polished with abrasive grains to obtain surface roughness of Ra≦2.0 nm and Rmax≦22 nm. The plastic substrate molded with the mold has smoothness equivalent to the polished plating surface. A concave-convex pattern for forming pits may be formed on the cavity surface. A magnetic disk or an optical disk provided with the substrate makes it possible to realize the near contact system for a magnetic or magneto-optical head. Thus, it is possible to realize high density recording.

Abstract: A recording disk comprises a substrate including a plastic material, and an overlay arranged over the substrate and including a recording substance for recording therein an information, and a radially-outer periphery of the overlay is received within a radially-outer periphery of the substrate as seen in an axial direction of the recording disk.

Abstract: A magneto-optical recording medium comprises, on a substrate, a reflective layer, a first dielectric layer, a recording layer, and a second dielectric layer successively in this order, for being irradiated with a recording or reproducing light beam coming from a side of the second dielectric layer. A diamond-like carbon layer as a self-lubricating layer is formed on the second dielectric layer. An optical head comprises a floating type slider installed with a solid immersion lens. A protective film having a self-lubricating property may be also formed on a bottom surface of the slider opposing to the optical recording medium. Even when the floating position of the optical head is varied, and the optical head contacts with the surface of the optical recording medium, then the sliding scratch scarcely occurs, because the optical head smoothly glides on the recording medium surface. A lubricating layer may be further formed on the self-lubricating layer.

Abstract: A cavity surface-forming plate of a mold for injection-molding a plastic substrate is coarsely polished, and then a surface for defining a cavity is applied with electroless Ni-P plating. The surface of the plating is polished with abrasive grains to obtain surface roughness of Ra.ltoreq.2.0 nm and Rmax.ltoreq.22 nm. The plastic substrate molded with the mold has smoothness equivalent to the polished plating surface. A concave-convex pattern for forming pits may be formed on the cavity surface. A magnetic disk or an optical disk provided with the substrate makes it possible to realize the near contact system for a magnetic or magneto-optical head. Thus, it is possible to realize high density recording.

Abstract: A blade includes a blade body having a cavity, an insert inserted in the cavity, a plurality of impingement holes formed in a circumferential wall of the insert, and a recovery path for recovering a cooling medium sprayed from the impingement holes. The cooling medium can be recovered without being discharged into a main gas. A gas turbine having this blade is used for a combined cycle power plant. In this plant, steam is supplied as a cooling medium to the blade, and the steam recovered from the blade is supplied to a steam turbine.

Abstract: An olefinic resin composition for molding, which comprises an olefinic resin, inorganic particles in rod shape and inorganic particles of planar crystalline structure respectively in 10 to 90% by volume, 3 to 60% by volume and 5 to 55% by volume based on the composition. A molded article made of such a composition is low in friction coefficient and high in mechanical strength. When this composition is incorporated with a synthetic resin having a higher hardness than the olefinic resin, the resultant molded article is enhanced in endurance on sliding. The resulting composition is suitable for manufacturing of a sliding member such as a tape guide.

Abstract: In apparatus and a method for cooling a gas turbine blade, coolant in a liquid state, such as water, flows from a blade root portion toward an outer blade end portion under centrifugal force through one or more liquid coolant passages travelling longitudinally within the blade, and such liquid flow coolant is introduced through a channel to one or more nozzles for converting the liquid flow to a mist. The mist flows from the outer blade end portion toward the blade root portion through one or more mist-flow coolant passages and, having absorbed heat includes mist and gaseous vapor, is discharged from the blade into the motive fluid.

Abstract: A valve apparatus which comprises a main valve body and a main valve seat detachably abutting against each other to open and close a main fluid pass defined therebetween, and wherein, as measured from the longitudinal section of the valve apparatus, the detachably abutting plane of the main valve seat has a larger curvature radius than that of the main valve body in order to let a fluid stream conducted through the main fluid pass flow along the surface of the main valve seat; and that part of the surface of the main valve body defining one side of the main fluid pass with the main valve seat which faces the throat section of said main fluid pass is provided with a sharp edge at its end portion to allow for the easy removal of a main fluid stream from the main valve body.