Abstract: An electronic click wrench comprises a handle for applying torque through a shaft to a working head. The shaft includes torque sensing means for calculating the torque applied to a workpiece by the working head, and a trigger mechanism for sending a haptic feedback to a user by triggering a small movement of the handle relative to the working head when a set point torque is reached. The trigger mechanism comprises a permanent magnet that is normally anchored by magnetic attraction to a pole piece so as to resist separation when a force is applied through the handle, and an electromagnetic means actuable to reduce or cancel that magnetic attraction so as to permit separation of the pole piece and permanent magnet, thus generating the haptic feedback. Operation of the electromagnet may oppose the flux of the permanent magnet through the pole piece. Alternatively operation of the electromagnet may divert the flux of the permanent magnet away from the pole piece.

Abstract: An electronic click wrench comprises a handle for applying torque through a shaft to a working head. The shaft includes torque sensing means for calculating the torque applied to a workpiece by the working head, and a trigger mechanism for sending a haptic feedback to a user by triggering a small movement of the handle relative to the working head when a set point torque is reached. The trigger mechanism comprises a permanent magnet that is normally anchored by magnetic attraction to a pole piece so as to resist separation when a force is applied through the handle, and an electromagnetic means actuable to reduce or cancel that magnetic attraction so as to permit separation of the pole piece and permanent magnet, thus generating the haptic feedback. Operation of the electromagnet may oppose the flux of the permanent magnet through the pole piece. Alternatively operation of the electromagnet may divert the flux of the permanent magnet away from the pole piece.

Abstract: A method for reducing vibration levels in a turbomachine including at least a first and a second bladed wheel, due to aerodynamic perturbations that are produced by the second bladed wheel or an obstacle on the first bladed wheel is disclosed. The method includes: defining an initial configuration of the blades; calculating the synchronous forced response on the first bladed wheel as a function of the harmonic excitation force produced by the second bladed wheel expressed in the form of a linear function of the generalized aerodynamic force for the mode considered; determining a geometric tangential shift value ? for the stacked cross sections of one of the two wheels to reduce the corresponding term to the generalized aerodynamic force. The set of cross sections with the tangential shifts thus defines a new configuration of the blades of one of the two wheels.

Abstract: The present invention concerns a method for reducing vibration levels likely to occur in a turbomachine comprising at least a first and a second bladed wheel, where the two wheels are moving relative to one another about an axis of rotation and a gaseous fluid is passing over them, due to perturbations of an aerodynamic origin that are produced by the second bladed wheel or an obstacle on the first bladed wheel. The method includes the following steps in the design of said two bladed wheels: an initial configuration of the blades is defined; the synchronous forced response on the first bladed wheel is calculated as a function of the harmonic excitation force produced by the second bladed wheel expressed in the form of a linear function of the generalized aerodynamic force for the mode considered; a geometric tangential shift value ? is determined for the stacked cross sections of one of the two wheels so as to reduce the corresponding term to the generalized aerodynamic force.

Abstract: Disclosed are compounds containing single amino adds, peptides, or derivatives thereof which have the potential to express anti-oxidant activity capable of reducing reactive oxygen species in cells. These compounds may be used to inhibit oxidative stress-induced cell injury or death both in vivo and ex vivo. In addition, methods for the synthesis of these compounds are disclosed.

Abstract: Disclosed are compounds containing single amino acids, peptides, or derivatives thereof which are selectively delivered to the mitochondria of a cell. Compounds of the invention exhibit antioxidant activity thereby reducing reactive oxygen species in cells. These compounds are useful for inhibiting oxidative stress-induced cell injury or death both in vivo and ex vivo. In addition, methods for the synthesis of these compounds are disclosed.

Abstract: This invention relates to water conserving devices to be used in the water closets of bathroom toilets. The devices may also find applications in other liquid containing and discharging vessels. The invention consists of a partition wall or alternatively a minitank installable in the water closet of a toilet so as to divide the water closet into two separate liquid holding compartments. A flapper valve with a magnetic closure, fitted into the partition wall or into the minitank, opens and closes a port which communicates between the compartments. The actuating means of the flapper valve is operably connected to the existing trip lever of the water closet in such a way that the valve will be actuated only after the existing discharge valve has been actuated first. This arrangement permits the user to discharge water from one or both compartments of the water closet according to his needs.