Abstract: A method for estimating gestational age of a human fetus using a trained machine learning model with an attention function includes receiving, at a feature extraction module of a trained machine learning model, fetal ultrasound image data for at least one image of a human fetus, and producing, by propagating the ultrasound image data through the feature extraction module, at least one feature vector from the ultrasound image data. The method further includes providing the at least one feature vector as input to an attention module of the trained machine learning model and producing, by propagating the feature vectors through the attention module, a weighted sum vector that aggregates and weights the feature vectors. The method further includes providing the weighted sum vector as input to a gestational age prediction module of the trained machine learning model, which generates, from the weighted sum vector, an estimate of the gestational age of the human fetus.

Abstract: Systems and methods are provided for a cantilever beam arrangement that preloads ring segments in a multi0segment piston ring arrangement. A piston assembly comprises a piston that comprises a land. A ring segment is arranged against the land. The ring segment comprises a radially inner surface, a radially outer surface for sealing against a bore, and a boss located on the radially inner surface. The piston assembly also includes a beam spring having a proximal end attached to the piston and a distal end in contact with the boss. The beam spring forces at least a portion of the ring segment radially outward by applying a force on the boss.

Abstract: An apparatus for applying a magnetic pressure to a work piece includes an inductor configured to be disposed in proximity to the work piece and a controller electrically connected to the inductor and configured to control a supply of electrical power in order to output a first voltage over a selected frequency range to determine a frequency that provides a maximum current or a frequency that provides a current within a selected range of the maximum current to the inductor.

Abstract: Systems and methods are provided for a cantilever beam arrangement that preloads ring segments in a multi0segment piston ring arrangement. A piston assembly comprises a piston that comprises a land. A ring segment is arranged against the land. The ring segment comprises a radially inner surface, a radially outer surface for sealing against a bore, and a boss located on the radially inner surface. The piston assembly also includes a beam spring having a proximal end attached to the piston and a distal end in contact with the boss. The beam spring forces at least a portion of the ring segment radially outward by applying a force on the boss.

Abstract: An apparatus for applying a magnetic pressure to a work piece includes an inductor configured to be disposed in proximity to the work piece and a controller electrically connected to the inductor and configured to control a supply of electrical power in order to output a first voltage over a selected frequency range to determine a frequency that provides a maximum current or a frequency that provides a current within a selected range of the maximum current to the inductor.

Abstract: An apparatus for applying a magnetic pressure to a work piece includes an inductor configured to be disposed in proximity to the work piece and a controller electrically connected to the inductor. The controller is configured to control a supply of electrical power in order to output a first voltage over a selected frequency range to determine a first frequency that provides a maximum current to the inductor or a second frequency that provides a current within a selected range of the maximum current to the inductor.

Abstract: A downhole electrohydraulic movement arrangement including a spark gap device positioned and configured to move a separate component, and an energy source electrically connected to the spark gap device. A method for moving a component in a downhole environment including disposing an electrohydraulic arrangement having a spark gap device and an energy source electrically connected to the spark gap device operably proximate a component, actuating the spark gap device, generating a pressure wave with the spark gap device, and moving the component with the pressure wave. A downhole system including a borehole, a component moved within the borehole by an electrohydraulic arrangement.

Abstract: An arrangement for accelerating a workpiece including a system inductor configured to be supplied a current, a workpiece positioned magnetically proximate to the system inductor, a workpiece inductor associated with the workpiece and configured to magnetically interact with the system inductor. A method for moving a workpiece in a magnetic pressure arrangement comprising increasing inductance of a workpiece subsystem of the arrangement by disposing a workpiece inductor at the workpiece. A method for moving a workpiece in a magnetic pressure system comprising tuning one or more of a resistor, capacitor or inductor of the system to adjust a phase angle of a magnetic pressure produced in the system.

Abstract: A sealing element is flanked by wedge-shaped extrusion ring assemblies. The extrusion rings are continuous for 360 degrees and are slotted from the outside dimension and alternatively from the inside dimension to allow the diameter to increase to the surround tubular or open hole. The extrusion rings climb a ramp on an adjacent pedestal ring on the way out to the borehole wall. Depending on the dimension of the gap to be spanned the extrusion ring slides a variable distance up the pedestal ring ramp. An optional anchor ring is initially forced up an opposite ramp of the pedestal ring. If the sealing gap is short the anchor ring can be eliminated. For larger gaps the anchor ring moves out far enough toward the borehole wall to contact the extrusion ring located on an opposing ramp of the pedestal ring so that reaction forces are directed to keep the anchor ring wedged in position for support of the extrusion ring assembly.

Abstract: A method for installing a tool in a downhole system including running the tool to a target location within a tubular structure, creating a magnetic pulse, and urging the tool toward the tubular structure at a minimum velocity of 200 meters per second with the magnetic pulse. A method for actuating a downhole tool including creating a magnetic pulse, coupling the magnetic pulse to a workpiece and moving the workpiece with the pulse, the workpiece achieving a minimum velocity of 200 meters per second.

Abstract: A packer includes a body formed from an elastic composite material having one of a one-dimensional elastic structure, a periodic elastic structure, and a random elastic structure and a filler material.

Abstract: A floating wind turbine assembly, configured to self-stabilize in water without a fixed anchor. The floating wind turbine assembly has a wind turbine, joined to a turbine shaft. A beam anchor is joined to the turbine shaft. A hollow moving mass, arranged around the beam anchor, such that the hollow moving mass can be moved up or down the beam anchor. The hollow moving mass includes a pump, having a pump first end connected to the water with a first pump hose and a pump second end arranged within the hollow moving mass with a second pump hose.

Abstract: A submersible well pump assembly has a pump housing with a pump discharge on upper end. A pump barrel is located within the pump housing, defining an annular passage between the barrel and the pump housing. A plunger is reciprocally carried in the barrel. A motor mounted below the pump housing and operatively couples to the plunger causes the plunger to reciprocate between an upstroke and a down-stroke. A valve and porting arrangement directs well fluid in the barrel below the plunger into the annular passage and out the discharge during a down stroke of the plunger. The valve and porting arrangement admits well fluid into the barrel below the plunger during the up stroke of the plunger. A connecting rod extends between the motor and the plunger. The connecting rod is in tension during the down-stroke.

Abstract: A floating wind turbine assembly, configured to self-stabilize in water without a fixed anchor. The floating wind turbine assembly has a wind turbine, joined to a turbine shaft. A beam anchor is joined to the turbine shaft. A hollow moving mass, arranged around the beam anchor, such that the hollow moving mass can be moved up or down the beam anchor. The hollow moving mass includes a pump, having a pump first end connected to the water with a first pump hose and a pump second end arranged within the hollow moving mass with a second pump hose.

Abstract: A method for treating a borehole or formation including creating a hydrodynamic barrier in a selected location, treating a target in the borehole with a treatment fluid, and maintaining or directing the treatment fluid with the hydrodynamic barrier. A system for treating a borehole or formation. A barrier system including a rotatable member, a tubular disposed in radially spaced relationship to the rotatable member and defining an annular space between the tubular and rotatable member, the rotatable member configured to rotate at an RPM relative to the tubular sufficient to establish circular fluid movement in the annular space.

Abstract: In one embodiment, a filler ring for use with a packer element with a packer element radial stiffness and a packer element confined circumferential stiffness is disclosed, including, a filler ring body with a filler ring body radial stiffness greater than the packer element radial stiffness and a filler ring body circumferential stiffness less than the packer element confined circumferential stiffness. In another embodiment, a method to selectively deform a packer element with a packer element radial stiffness and a packer element confined circumferential stiffness is disclosed, including providing a filler ring body with a filler ring body radial stiffness greater than the packer element radial stiffness and a filler ring body circumferential stiffness less than the packer element confined circumferential stiffness, deforming the packer in a radial direction via the filler ring body, deforming the filler ring body in an axial direction in response to deformation of the packer element.

Abstract: A downhole electrohydraulic movement arrangement including a spark gap device positioned and configured to move a separate component, and an energy source electrically connected to the spark gap device. A method for moving a component in a downhole environment including disposing an electrohydraulic arrangement having a spark gap device and an energy source electrically connected to the spark gap device operably proximate a component, actuating the spark gap device, generating a pressure wave with the spark gap device, and moving the component with the pressure wave. A downhole system including a borehole, a component moved within the borehole by an electrohydraulic arrangement.

Abstract: A packer includes a body formed from an elastic composite material having one of a one-dimensional elastic structure, a periodic elastic structure, and a random elastic structure and a filler material.

Abstract: Systems and methods for the construction of components such as laminations for the stator core of an ESP motor wherein particles of different materials are mixed and pressed together at an elevated temperature to form a composite material in the desired lamination shape. The materials are selected to provide characteristics such as high magnetic permeability from one material and high thermal conductivity from the other material. The particles of the different materials are pressed together at a temperature that is sufficiently high to fuse the particles together and form a composite material, but is also sufficiently low that the materials are not sintered. The individual materials therefore retain their original characteristics, and the composite material benefits from the high magnetic permeability of the first material and the high thermal conductivity of the other material.

Abstract: A magnetic pulse actuation arrangement including an inductor, a workpiece spaced from the inductor, a reluctance reduction configuration in magnetically operable communication with the inductor and the workpiece. Also included is a method for completing a borehole including running an arrangement as in any prior embodiment into the borehole, configuring the arrangement to reduce reluctance, generating a magnetic pulse, and moving a workpiece.