Abstract: A method for in-place machining of a collector ring attached to a turbine shaft of a hydroelectric generator includes: attaching a support member to stationary portions of the hydroelectric generator, the support member being configured to support a machine tool at an angle parallel to an inclination angle of an axis of rotation of the turbine shaft; attaching an adjustable positioning device to the support member; attaching the machine tool to the adjustable positioning device, the machine tool being configured to perform a machining operation on the collector ring; controlling a rotational speed of the turbine shaft to a specified rotational speed by controlling a flow of water through the turbine; adjusting the adjustable positioning device to adjust a position of the machine tool with respect to the collector ring; and performing the machining operation on the collector ring at the specified rotational speed of the turbine shaft.

Abstract: A method for in-place machining of a collector ring attached to a turbine shaft of a hydroelectric generator includes: attaching a support member to stationary portions of the hydroelectric generator, the support member being configured to support a machine tool at an angle parallel to an inclination angle of an axis of rotation of the turbine shaft; attaching an adjustable positioning device to the support member; attaching the machine tool to the adjustable positioning device, the machine tool being configured to perform a machining operation on the collector ring; controlling a rotational speed of the turbine shaft to a specified rotational speed by controlling a flow of water through the turbine; adjusting the adjustable positioning device to adjust a position of the machine tool with respect to the collector ring; and performing the machining operation on the collector ring at the specified rotational speed of the turbine shaft.

Abstract: A method for repairing a discharge ring of a hydraulic turbine with a turbine runner in place includes: mounting adjustable fixtures to runner blades that are approximately evenly spaced around the turbine runner, where each adjustable fixture is mounted to a different runner blade at a different predetermined vertical position with respect to a surface of the discharge ring; attaching cutting equipment configured to remove material from the discharge ring to each adjustable fixture installed on the runner blades; installing a drive unit configured to rotate the turbine runner; controlling the drive unit to rotate the runner at a specified speed; and controlling the cutting equipment attached to each adjustable fixture to concurrently remove material from the discharge ring as the turbine runner rotates.

Abstract: A diagnostic test assembly, including: a substrate having formed therein a plurality of mutually spaced open reservoirs and fluidic channels; a deformable membrane attached to the substrate to cover the open reservoirs and fluidic channels; a rigid covering disposed over the deformable membrane, the rigid covering being configured to allow respective actuators external to the diagnostic test assembly to displace corresponding portions of the deformable membrane; wherein at least some of the portions of the deformable membrane act as pumping portions, each pumping portion being disposed over a corresponding one of the reservoirs and being configured so that when it is displaced by a corresponding actuator, it is displaced into the corresponding reservoir to pump fluid from the corresponding reservoir through at least a corresponding one of the fluidic channels; and wherein one or more of the portions of the deformable membrane act as valve portions, each valve portion being configured so that when it is displa

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A diagnostic test assembly, including: a substrate having formed therein a plurality of mutually spaced open reservoirs and fluidic channels; a deformable membrane attached to the substrate to cover the open reservoirs and fluidic channels; a rigid covering disposed over the deformable membrane, the rigid covering being configured to allow respective actuators external to the diagnostic test assembly to displace corresponding portions of the deformable membrane; wherein at least some of the portions of the deformable membrane act as pumping portions, each pumping portion being disposed over a corresponding one of the reservoirs and being configured so that when it is displaced by a corresponding actuator, it is displaced into the corresponding reservoir to pump fluid from the corresponding reservoir through at least a corresponding one of the fluidic channels; and wherein one or more of the portions of the deformable membrane act as valve portions, each valve portion being configured so that when it is displa

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source.

Abstract: A method and apparatus for processing an image for storage or transmission, the method comprising dividing an image in the form of image data into three or more image data subsets, and sequentially outputting the image data subsets as fields in or as a television signal. The method may include capturing the image, and the method may include forming the subsets so as to be interlaceable.

Abstract: This invention provides a means for insuring data security and confidence in a recorded sequence of data that includes video, audio and meta-data through the use of digital signatures. The digital signatures are calculated through the use of publicly available hash algorithms and chained in a new and novel manner to provide for confidence in the data integrity and security of the recorded data upon replay.

Abstract: Cameras such as electronic video surveillance cameras use an iris to adjust the total amount of light reaching the sensor element. An electrically adjustable iris composed of a magnetic fluid disposed within an aperture construction assembly allows the optical aperture to be adjusted dynamically and allows for more rapid change to optimum aperture settings for varying external lighting conditions.