Abstract: The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I): wherein each symbol is as described in the specification, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as an agent for the prophylaxis or treatment of narcolepsy.

Abstract: An intake apparatus of a V-type internal combustion engine including first cylinders arranged along a first direction in a first bank and second cylinders arranged along the first direction in a second bank, the intake apparatus includes a surge tank, first branch paths, second branch paths, and a protrusion. The surge tank is provided above the first and second banks. The surge tank includes a lower wall, an air inlet, first air outlets, and second air outlets. The first air outlets are arranged along the first direction in the lower wall. The second air outlets are arranged along the first direction in the lower wall. The first branch paths connect the first outlets to the first cylinders. The second branch paths connect the second outlets to the second cylinders. The protrusion is provided on the lower wall between a closest first air outlet and a closest second air outlet.

Abstract: An intake apparatus of a V-type internal combustion engine including first cylinders arranged along a first direction in a first bank and second cylinders arranged along the first direction in a second bank, the intake apparatus includes a surge tank, first branch paths, second branch paths, and a protrusion. The surge tank is provided above the first and second banks. The surge tank includes a lower wall, an air inlet, first air outlets, and second air outlets. The first air outlets are arranged along the first direction in the lower wall. The second air outlets are arranged along the first direction in the lower wall. The first branch paths connect the first outlets to the first cylinders. The second branch paths connect the second outlets to the second cylinders. The protrusion is provided on the lower wall between a closest first air outlet and a closest second air outlet.

Abstract: A substrate voltage generating circuit including level shifting circuits, a first power supply node of a first potential level VDD a second power supply node of a second potential level VSS lower than the first potential level, and an output node OUT.vbb having a third potential level VBB lower than the second potential level. The level shifting circuits are coupled between the first power supply node and the output node, receiving an input signal having the first and second potential levels, and outputting an output signal VBB having the first potential level and the third potential level.

Abstract: The present invention relates to a floating-type foundation structure that supports a power generation system upon the ocean in the upright position. The foundation structure comprises: a main floating body consisting of a cylinder that is longer in the axial direction disposed such that its central axis becomes vertical so as to support the power generation system in the upright position; and auxiliary floating bodies attached to the main floating body by trusses so as to surround the main floating body. The lower portion of the main floating body that supports the power generation system in the upright position is submerged in the ocean while the upper portions of the auxiliary floating bodies are positioned upon the ocean surface. A flat plate larger in diameter than the cross section of the main floating body is installed so as to be as close to horizontal as possible in the underwater portion below the waterline of the main floating body.

Abstract: A substrate voltage generating circuit includes a first power supply node of a first potential level, a second power supply node of a second potential level lower than the first potential level, and an output node receiving a voltage having a third potential level lower than the second potential level. The circuit also includes a level shift circuit coupled between the first power supply node and the output node, receiving an input signal having the first and second potential levels, and outputting an output signal having the first potential level and the third potential level. The circuit also includes a switch circuit connecting the second power supply node to the output node in response to the output signal.

Abstract: A plurality of wind turbine blades (3) are distributed equiangularly within a plane perpendicular to a horizontal rotating shaft (2) and around a hub (1) provided on the horizontal rotating shaft (2); the blade body of each turbine blade includes therewithin a tip auxiliary blade (6) housed to be capable of extending toward and retracting away from a tip of the blade, and an auxiliary blade extension-and-retraction unit (8) for protruding the tip auxiliary blade (6) to increase the overall length of the blade; and when an airflow comes in at a low speed, the tip auxiliary blades (6) are protruded toward the tips to generate even greater rotating torque, thereby increasing a power generation output by the wind turbine.

Abstract: A plurality of wind turbine blades (3) are distributed equiangularly within a plane perpendicular to a horizontal rotating shaft (2) and around a hub (1) provided on the horizontal rotating shaft (2); the blade body of each turbine blade includes therewithin a tip auxiliary blade (6) housed to be capable of extending toward and retracting away from a tip of the blade, and an auxiliary blade extension-and-retraction unit (8) for protruding the tip auxiliary blade (6) to increase the overall length of the blade; and when an airflow comes in at a low speed, the tip auxiliary blades (6) are protruded toward the tips to generate even greater rotating torque, thereby increasing a power generation output by the wind turbine.

Abstract: An aluminum alloy die casting method comprising the steps of providing a die casting machine having a gate for allowing passage of molten aluminum alloy, setting a flow rate of the molten aluminum alloy at the gate to be in a range of 5 m/sec to 15 m/sec, and press-injecting the molten aluminum alloy into a cavity of a die. With this arrangement, it becomes possible to obtain a weldable casting with no entrapment of air. An aluminum alloy for a vehicular part, which is formed of a die cast product manufactured by the die casting method of the present invention, is weldable and also dense in structure. As a result, these vehicular parts formed of the die-cast products are manufactured on a large scale at a low cost.

Abstract: A dynamic valve mechanism for an engine which can make the overall height of the engine relatively small so as to provide easy loading of the engine on a vehicle.

Abstract: A process for measuring an unbalance of a torque converter, in which an outer member and an inner member of the torque converter are assembled, and oil is filled into the outer member to establish a condition similar to an actual service state of the torque converter. In this condition, the two members are rotated in unison. If the rotational speed of the torque converter reaches a measuring rotational speed, a plurality of measurements are conducted with the phase of the outer and inner members being varied between each measurement through a predetermined angle, thereby correctly detecting only an unbalance due to the outer member, with an unbalance due to the inner member being canceled from the results of the measurements. Cutting a balance weight having a weight sufficient to correct the detected unbalance from a metal tape and attached said cut balance weight to an outer periphery of the outer member of the torque converter at a given position by spot-welding or adhesive-bonding.