Abstract: A modular platform electric trench heater is provided. The electric trench heater has a case having a first end and a second end, an electrical heating unit disposed in the case and designed to generate heat and create an upward convection current therethrough, a baffle dividing the case in a longitudinal direction into a first portion and a second portion, wherein the baffle is designed to direct the upward convection current from the first portion of the case to the second portion of the case, and a connecting unit provided in the form of a connecting plate and a plate fixing mechanism that couples the connecting plate to the first end of the case.

Abstract: This application sets forth techniques for variant testing at scale. In particular, the embodiments set forth provide systems and methods for testing, on a large-scale software application store, visual aspects of one or more variants of representative data associated with an application available through the software application store. According to some embodiments, a method may include using a subset of conversion data associated with a control object and a subset of the conversion data associated with at least one variant object to compute at least one conversion metric for the control object and at least one conversion metric for the at least one variant object. The method may also include generating a performance measurement by applying at least one statistical hypothesis testing function to the at least one conversion metric for the control object and the at least one conversion metric for the at least one variant object.

Abstract: The present disclosure provides embodiments of fiber optic cable connectors, sleeves for fiber optic cable connectors, fiber optic cable adapters and fiber optic connector assemblies that incorporate intelligent systems that can identify presence and exchange information.

Abstract: A trench heater includes a case, a connecting unit, and a sub-assembly unit. The sub-assembly unit includes a baffle, a first junction panel, a second junction panel, and an electrical heating unit. The electrical heating unit includes a heating unit that comprises a heating element, a body, and a granular heat transfer medium. Multiple trench heaters may be connected end to end to create longer lengths via a modular platform.

Abstract: The present disclosure provides embodiments of fiber optic cable connectors, sleeves for fiber optic cable connectors, fiber optic cable adapters and fiber optic connector assemblies that incorporate intelligent systems that can identify presence and exchange information.

Abstract: Methods and systems for fabricating a component by consolidating a first portion of a particulate include a louvered particulate containment wall positioned around the component and a second portion of the particulate. At least one louver is coupled to the particulate containment wall adjacent at least one opening in the particulate containment wall. The particulate containment wall is positionable between a first position in which the louver prevents the second portion of the particulate from flowing through the passage and a second position in which the second portion of the particulate is able to flow through the passage. The methods include switching the particulate containment wall from the first position to the second position and allowing the second portion of the particulate to flow out of the interior space through the at least one opening.

Abstract: In one aspect, an additive manufacturing system is provided. The additive manufacturing system includes a build platform, a first plurality of particles positioned on the build platform, and a particle containment system positioned on the build platform. The particle containment system includes a particle containment wall. The particle containment wall at least partially surrounds the first plurality of particles and includes a second plurality of particles consolidated together. The particle containment wall includes a top end spaced apart from the build platform, an inner face positioned against the first plurality of particles and extending between the build platform and the top end, and an outer face that faces a substantially particle-free region, the outer face positioned opposite the inner face and extending between the build platform and the top end.

Abstract: A method of monitoring an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder to form a workpiece, in the presence of one or more plumes generated by interaction of the one or more energy beams with the powder. The method includes using at least one sensor to generate at least one signal representative of a trajectory of one or more of the plumes.

Abstract: A downhole tool assembly for completing or cleaning a wellbore. The downhole tool assembly may include a perforation gun sub and a laser assembly sub. The perforation gun sub may be used to propagate a shockwave through one or more pre-existing perforations in a formation. The laser assembly sub may be used for treating perforations, e.g. treating the one or more pre-existing perforations. Depending on the parameters of the operation, the treating of the perforations may comprise changing the shape of the perforations and/or making the perforations wider, deeper, or otherwise adjusted.

Abstract: A system for additively manufacturing components includes a build chamber and a build plate on which a component and a containment wall surrounding the component are additively formed. The containment wall surrounds the component such that powder is present between the component and the containment wall, with the containment wall including first and second portions joined together at a separation line. Additionally, the build plate is positioned within the build chamber. Furthermore, a tooling assembly configured to split the containment wall at the separation line and pull the first portion of the containment wall away from the second portion of the containment wall while the build plate is present within the build chamber such that a portion of the powder is exposed. Moreover, a vacuum configured to remove the exposed portion of the powder from the build chamber while the build plate is present within the build chamber.

Abstract: A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.

Abstract: A method is provided for controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder contained in an additive manufacturing machine having a gas flow therein in order to form a workpiece, in the presence of one or more plumes generated by interaction of the one or more energy beams with the powder, wherein the process is controlled by an electronic controller. The method includes: performing a build process to form a workpiece using a set of initial process parameters; sensing a condition of the finished workpiece; using the electronic controller, comparing the condition of the finished workpiece to a predetermined standard; using the electronic controller, changing one or more of the initial process parameters to define a set of revised process parameters; and performing a subsequent build process using the revised process parameters.

Abstract: A system for additively manufacturing components includes a build chamber and a build plate on which a component and a containment wall surrounding the component are additively formed. The containment wall surrounds the component such that powder is present between the component and the containment wall, with the containment wall including first and second portions joined together at a separation line. Additionally, the build plate is positioned within the build chamber. Furthermore, a tooling assembly configured to split the containment wall at the separation line and pull the first portion of the containment wall away from the second portion of the containment wall while the build plate is present within the build chamber such that a portion of the powder is exposed. Moreover, a vacuum configured to remove the exposed portion of the powder from the build chamber while the build plate is present within the build chamber.

Abstract: A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.

Abstract: Methods and systems for fabricating a component by consolidating a first portion of a particulate include a louvered particulate containment wall positioned around the component and a second portion of the particulate. At least one louver is coupled to the particulate containment wall adjacent at least one opening in the particulate containment wall. The particulate containment wall is positionable between a first position in which the louver prevents the second portion of the particulate from flowing through the passage and a second position in which the second portion of the particulate is able to flow through the passage. The methods include switching the particulate containment wall from the first position to the second position and allowing the second portion of the particulate to flow out of the interior space through the at least one opening.

Abstract: A trench heater includes a case, a connecting unit, and a sub-assembly unit. The sub-assembly unit includes a baffle, a first junction panel, a second junction panel, and an electrical heating unit. The electrical heating unit includes a heating unit that comprises a heating element, a body, and a granular heat transfer medium. Multiple trench heaters may be connected end to end to create longer lengths via a modular platform.

Abstract: Methods and systems for fabricating a component by consolidating a first portion of a particulate include a louvered particulate containment wall positioned around the component and a second portion of the particulate. At least one louver is coupled to the particulate containment wall adjacent at least one opening in the particulate containment wall. The particulate containment wall is positionable between a first position in which the louver prevents the second portion of the particulate from flowing through the passage and a second position in which the second portion of the particulate is able to flow through the passage. The methods include switching the particulate containment wall from the first position to the second position and allowing the second portion of the particulate to flow out of the interior space through the at least one opening.

Abstract: A method of controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder to form a workpiece, in the presence of one or more plumes generated by interaction of the one or more energy beams with the powder. The method includes controlling at least one of: a trajectory of the one or more plumes, and the one or more energy beams, so as to prevent the one or more energy beams from intersecting the one or more plumes.

Abstract: Casings and methods for manufacturing casings are provided. For example, a casing defining radial, axial, and circumferential directions is provided. The casing comprises an annular inner wall and an annular outer wall, each extending along the axial direction, with the outer wall radially spaced apart from the inner wall. The casing also comprises an auxetic structure extending from the inner wall to the outer wall and including a plurality of lattice elements. Each lattice element extends circumferentially and radially from the inner to the outer wall, and the lattice elements are axially spaced apart from one another. The auxetic structure may define at least one aperture for fluid flow from one portion to another of the auxetic structure and/or may be configured to vary the thermal characteristics of the casing along the axial direction. The casing may be integrally formed as a single monolithic component, e.g., by additive manufacturing.

Abstract: Methods and systems for fabricating a component by consolidating a first portion of a particulate include a louvered particulate containment wall positioned around the component and a second portion of the particulate. At least one louver is coupled to the particulate containment wall adjacent at least one opening in the particulate containment wall. The particulate containment wall is positionable between a first position in which the louver prevents the second portion of the particulate from flowing through the passage and a second position in which the second portion of the particulate is able to flow through the passage. The methods include switching the particulate containment wall from the first position to the second position and allowing the second portion of the particulate to flow out of the interior space through the at least one opening.