Abstract: An implant includes a tether and a series of anchors. Each anchor includes (i) a tissue-engaging element, (ii) a head that is slidably coupled to the tether and that includes a lock that is biased to lock in a manner that locks the head to the tether, and (iii) a push-button operatively coupled to the lock. A delivery tool includes a flexible tube that is transluminally advanceable to the heart, and a driver. The driver is configured to, for each of the anchors sequentially, (i) advance the anchor through the flexible tube to the heart while the lock is maintained unlocked by the flexible tube constraining the push-button, (ii) anchor the anchor to tissue of the heart, and (iii) release the push-button by deploying the head out of the flexible tube, the lock responsively locking. Other embodiments are also described.

Abstract: A nozzle vane for a variable geometry turbocharger satisfies 0.45<(Xp/L)?0.60, where L is a chord length of the nozzle vane, and Xp is a distance between a leading edge of the nozzle vane and a rotation center of the nozzle vane.

Abstract: A nozzle vane for a variable geometry turbocharger has an airfoil including a leading edge, a trailing edge, a pressure surface, and a suction surface at least in a center position in a blade height direction. The airfoil satisfies 0?Wmax/L<0.03, where Wmax is a maximum value of a distance from a line segment connecting the trailing edge and a fixed point on the pressure surface at a 40% chord position from the trailing edge toward the leading edge to a given point on the pressure surface between the trailing edge and the fixed point, and L is a length of the line segment.

Abstract: A nozzle vane for a variable geometry turbocharger has an airfoil including a leading edge, a trailing edge, a pressure surface, and a suction surface at least in a center position in a blade height direction. The airfoil satisfies 0?Wmax/L<0.03, where Wmax is a maximum value of a distance from a line segment connecting the trailing edge and a fixed point on the pressure surface at a 40% chord position from the trailing edge toward the leading edge to a given point on the pressure surface between the trailing edge and the fixed point, and L is a length of the line segment.

Abstract: A nozzle vane for a variable geometry turbocharger satisfies 0.45<(Xp/L)<0.60, where L is a chord length of the nozzle vane, and Xp is a distance between a leading edge of the nozzle vane and a rotation center of the nozzle vane.