Abstract: Aspects of the present disclosure relate to split-scalarization of thread-local objects in optimized object code. A computer-implemented method includes receiving source code including at least one programmed method and at least one reference within the at least one programmed method that accesses at least one field of at least one object; determining that the at least one field of the at least one object is scalarizable over a region of the at least one programmed method; performing scalarization of the at least one field of the at least one object over the region of the at least one programmed method; and outputting optimized object code with the at least one field of the at least one object scalarized over the region of the at least one programmed method and with another field of the at least one object unscalarized in a different region of the at least one programmed.

Abstract: A fluid pump may include a power end, a fluid end having a cartridge bore, and a valve cartridge configured for insertion into, and removal from, the cartridge bore as a unit. The valve cartridge may include a cartridge body having a fluid inlet and a fluid outlet, a first valve assembly configured to control fluid flow through the fluid inlet, and a second valve assembly configured to control fluid flow through the fluid outlet.

Abstract: A valve cartridge for a fluid end for a well stimulation pump is discussed and illustrated. The valve cartridge optionally includes: a valve body, a spring engaging the valve body on a first side thereof, and a housing at least partially enclosing the valve body and spring. The housing can define one or more passages therethrough. The housing can define one or more seats adjacent the one or more passages. The one or more seats can be configured to be selectively engaged by the valve body on a second side thereof.

Abstract: A fluorescence sensor for use in phosphor thermometry is provided, the sensor comprising: an optical light guide which includes a distal end; and a sensing element, the sensing element attached to the distal end or located proximate to the distal end and in alignment with the distal end, the sensing element including a polycrystalline nanocomposite which includes at least one host, at least one dopant and at least one filler.

Abstract: A valve assembly and system, method, and apparatus thereof can comprise a valve body having a side surface and a valve body contact surface; a ring surrounding the valve body such that an inner surface of the ring is slidably engaged with the side surface of the valve body; and a retainer at an upper surface of the ring and movable with the ring relative to the valve body such that the retainer moves with the ring as the ring slides along the side surface of the valve body.

Abstract: A valve assembly and system, method, and apparatus thereof can comprise a valve body having a side surface and a valve body contact surface; a ring surrounding the valve body such that an inner surface of the ring is slidably engaged with the side surface of the valve body; and a retainer at an upper surface of the ring and movable with the ring relative to the valve body such that the retainer moves with the ring as the ring slides along the side surface of the valve body.

Abstract: A system obtains sensor data that includes: first vibration data related to vibration of an inlet manifold of a pump of a hydraulic fracturing rig, pump speed data related to a speed of the pump, pressure data related to a pressure of an outlet manifold of the pump, second vibration data related to vibration of a packing of the pump, and leakage data related to a leakage of fracturing fluid by the packing. The system processes the first vibration data and the pump speed data to determine that an inlet valve of the pump and an outlet valve of the pump have not failed, and thereby processes the pressure data to determine that the packing of the pump has failed. The system determines, based on at least one of the second vibration data and the leakage data, a failure severity level associated with the packing of the pump.

Abstract: A fluorescence sensor for use in phosphor thermometry is provided, the sensor comprising: an optical light guide which includes a distal end; and a sensing element, the sensing element attached to the distal end or located proximate to the distal end and in alignment with the distal end, the sensing element including a polycrystalline nanocomposite which includes at least one host, at least one dopant and at least one filler.

Abstract: A pinion shaft assembly for operation in a power end of a reciprocating pump includes a tubular member coupled to first pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the first end of the tubular member to ensure correct rotational orientation of the first pinion gear member and the tubular member and to help prevent rotation of the first pinion gear member relative to the tubular member. The tubular member is also coupled to a second pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the second end of the tubular member to ensure correct rotational orientation of the second pinion gear member and the tubular member and to help prevent rotation of the second pinion gear member relative to the tubular member.

Abstract: An example system includes a fluid end having a block, a suction bore formed in the block, a suction valve seat disposed within the suction bore, and a suction valve disposed within the suction bore, the suction valve, in a closed position, being configured to contact the suction valve seat to seal the suction bore. The system also includes a rod configured to engage the suction valve, the rod being moveable between a first position and a second position, wherein in the first position the suction valve is in the closed position, and in the second position, engagement of the rod with the suction valve causes the suction valve to be in an open position.

Abstract: A pinion shaft assembly for operation in a power end of a reciprocating pump includes a tubular member coupled to first pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the first end of the tubular member to ensure correct rotational orientation of the first pinion gear member and the tubular member and to help prevent rotation of the first pinion gear member relative to the tubular member. The tubular member is also coupled to a second pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the second end of the tubular member to ensure correct rotational orientation of the second pinion gear member and the tubular member and to help prevent rotation of the second pinion gear member relative to the tubular member.

Abstract: A fluorescence sensor for use in phosphor thermometry is provided, the sensor comprising: an optical light guide which includes a distal end; and a sensing element, the sensing element attached to the distal end or located proximate to the distal end and in alignment with the distal end, the sensing element including a polycrystalline nanocomposite which includes at least one host, at least one dopant and at least one filler.

Abstract: A system comprising at least one dock and at least one insole is provided for assessing a user's gait or movement during physical activity. The dock is for use with a computer and the insole is for use with an energy storage device, the insole including: circuitry, which includes a memory, a processor, the processor under control of the memory, and a switch, the switch under control of the processor; at least sensor which is at least one of a motion sensor and a pressure sensor, the sensor in electronic communication with the processor; a charger for electrical communication with an energy storage device; and a substrate, which retains the circuitry, the sensor and the charger, wherein when the insole is located on the dock, there is a magnetic field between the insole and the dock and a communication interface between the insole and the dock and when the insole is removed from the dock, the magnetic field is broken.

Abstract: A technique for incrementally unloading classes using a region-based garbage collector is described. One aspect of such a technique includes maintaining a remembered set for a class set. The remembered set indicates whether instances of the class set are contained in one or more regions in memory, and in which regions the instances are contained. Upon performing an incremental garbage collection process for a subset of the regions in memory, the technique examines the remembered set to determine whether the class set includes instances in regions outside of the subset. If the remembered set indicates that the class set includes instances outside of the subset of regions, the technique identifies the class set as “live.” This will preclude unloading the class set from the subset of regions.

Abstract: The present disclosure relates generally to a process controller and more specifically to a process controller with integrated optical sensing.

Abstract: A dual-sensory eyewear device for providing visual and aural distractions. The dual-sensory eyewear device includes a frame to which a pair of voltage controlled liquid crystal display lenses and audio devices may be connected. An electronics system and a power system are also included and are housed within the frame. The power system provides electrical current while the electronics package dictates operation of the lenses and the audio devices. Display drivers of the electronics package allow the pair of lenses to switch between an opaque and transparent state, while an audio amplifier operates the pair of speakers. Operation commands to dictate use of the pair of lenses and the pair of speakers can be remotely transmitted to the electronics package through a wireless communication module and interpreted through a signal decoder.

Abstract: A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing.

Abstract: The present disclosure relates generally to a process controller and more specifically to a process controller with integrated optical sensing.

Abstract: A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing.

Abstract: A method to implement parallel, single-pass compaction in a garbage collector is described. In one embodiment, such a method includes conducting a planning phase for multiple regions to be compacted. During the planning phase, the method determines new locations for data entities in the multiple regions. The method then performs a move phase for the multiple regions to move the data entities to their new locations. During the move phase, the method initiates multiple compaction threads to move the data entities to their new locations. While executing, the compaction threads dynamically build a dependency graph of the regions being compacted. The dependency graph guarantees that no data entity is moved to its new location until all data entities that it overwrites have been moved to their new locations. A corresponding computer program product and apparatus are also disclosed herein.