Abstract: A wind turbine for a wind power generator includes: a center shaft arranged in a vertical direction; a plurality of horizontal arms attached in a radial manner to the center shaft; and a plurality of blades each arranged on an outer end of each of the plurality of horizontal arms so as to stand in an upright position, the plurality of blades each having a streamlined shape, in horizontal cross-section, including a 45±10% front side and a rear side, of which the rear side defines a convex arc-shaped outer-side surface and a concave arc-shaped center-shaft-side surface in a continuously closed manner, and a blade thickness across the convex arc-shaped outer-side surface and the concave arc-shaped center-shaft-side surface decreases gradually from a full dimension, in a region from a center-shaft-side point of inflection in blade thickness to a rear end of each of the plurality of blades.

Abstract: A wind turbine for a wind power generator includes: a center shaft arranged in a vertical direction; a plurality of horizontal arms attached in a radial manner to the center shaft; and a plurality of blades each arranged on an outer end of each of the plurality of horizontal arms so as to stand in an upright position, the plurality of blades each having a streamlined shape, in horizontal cross-section, including a 45±10% front side and a rear side, of which the rear side defines a convex arc-shaped outer-side surface and a concave arc-shaped center-shaft-side surface in a continuously closed manner, and a blade thickness across the convex arc-shaped outer-side surface and the concave arc-shaped center-shaft-side surface decreases gradually from a full dimension, in a region from a center-shaft-side point of inflection in blade thickness to a rear end of each of the plurality of blades.

Abstract: A power generation device using renewable energy includes: a storage battery configured to temporarily store electric power generated through renewable energy; and a plurality of electric power generators along with a motor, the plurality of electric power generators configured to be caused, by the motor driven through electric power output from the storage battery, to rotate so as to further generate electric power, of which one portion is charged into the storage buttery and the other portion is output to an interconnection system as consumed electric power.

Abstract: A circuit for skew reduction, includes: first signal lines configured to transmit first signals delayed by first paths respectively; second signal lines configured to transmit second signals delayed by second paths respectively; and a first swap circuit, wherein the first swap circuit is configured to swap and connect the at least one of the first signal lines to the at least one of the second signal lines, when a mutual delay time difference of the second signals in a state where the at least one of the first signal lines is swapped and connected to the at least one of the second signal lines is smaller than a mutual delay time difference of the second signal lines in a state where the first signal lines is connected to the second signal lines without being swapped.

Abstract: A circuit for skew reduction, includes: first signal lines configured to transmit first signals delayed by first paths respectively; second signal lines configured to transmit second signals delayed by second paths respectively; and a first swap circuit, wherein the first swap circuit is configured to swap and connect the at least one of the first signal lines to the at least one of the second signal lines, when a mutual delay time difference of the second signals in a state where the at least one of the first signal lines is swapped and connected to the at least one of the second signal lines is smaller than a mutual delay time difference of the second signal lines in a state where the first signal lines is connected to the second signal lines without being swapped.

Abstract: A terminal resistance adjusting method adjusts a terminating resistance within a semiconductor integrated circuit.

Abstract: A terminal resistance adjusting method adjusts a terminating resistance within a semiconductor integrated circuit.