Abstract: Photobiomodulation therapy systems provide a highly effective way to treat many common ailments to the human body. Many embodiments described herein enable two or more light therapy devices to be coupled together in various ways. In some embodiments, the light therapy system includes a first light device and a second light device arranged and configured to be mechanically and/or electrically coupled to the first light device. Each of the light devices may include a housing and a plurality of lights arranged and configured to emit at least one of red light and near infrared light. The first light device and the second light device can be coupled in a side-by-side orientation or a top-to-bottom orientation. The light therapy system can also be coupled to a mobile stand or a door stand.

Abstract: The disclosure describes techniques for joining a first part including a ceramic or a CMC and a second part including a ceramic or a CMC using brazing. A technique may include positioning a filler material in a joint region between the first and second parts and a metal or alloy on a bulk surface of the filler material. The metal or alloy may be locally heated to melt the metal or alloy, which may infiltrate the filler material. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts. Another technique may include depositing a powder that includes the filler material and the metal or alloy in the joint region. Substantially simultaneously with depositing the powder, the powder may be locally heated. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts.

Abstract: An example article may include a component, a substrate including a first ceramic, a joining layer between the component and the substrate, and a joint surface coating between the substrate and the joining layer. The joint surface coating may include a diffusion barrier layer including a second ceramic material, and a compliance layer including at least one of a metal or a metalloid. An example technique may include holding a first joining surface of a coated component adjacent a second joining surface of a second component. The example technique may further include heating at least one of the coated component, the second component, and a braze material, and brazing the coated component by allowing the braze material to flow in a region between the first joining surface and the second joining surface.

Abstract: Various implementations of automatic test equipment are disclosed having a number of innovative features. In one implementation, the equipment includes a test head having a probe card support apparatus that provides stiffening support and/or planarization to the device under test (DUT) area of a probe card. In another implementation, the test head can include a planar surface and the wafer prober can include a corresponding planar surface. The planar surfaces can be brought into contact with each other to planarize the DUT area of the probe card and the wafer chuck in the wafer prober relative to each other.

Abstract: In some examples, an additive manufacturing technique for forming a vacuum insulator. For example, a method including forming an article including a first layer, a second layer, and at least one support member extending between the first and second layer by depositing a filament via a filament delivery device, wherein the filament includes a sacrificial binder and a powder, and wherein the first layer, second layer, and at least one support member define an open cavity within the article; removing the binder; and sintering the article to form the vacuum insulator, wherein the vacuum insulator defines a vacuum environment in the cavity.

Abstract: In general, techniques are described for a patterned filament for fused filament fabrication. An additive manufacturing system may include a substrate defining a major surface, a filament delivery device, and a computing device. The computing device may be configured to control the filament delivery device to deposit a filament on the substrate, the filament including a primary material and a first binder, where the primary material distributed in a pattern having a first cross sectional geometry that differs from a second cross sectional geometry of the filament, and the binder is configured to be substantially removed from the filament.

Abstract: An additive manufacturing technique includes depositing, via a filament delivery device, a filament onto a surface of a substrate. The filament includes a binder and a high entropy alloy powder. The technique also includes sacrificing the binder to form a preform and sintering the preform to form a component.

Abstract: In general, techniques are described for fused filament fabrication of abradable coatings. An additive manufacturing system comprising a substrate defining a major surface, a filament delivery device, and a computing device may be configured to perform various aspects of the techniques. The computing device may be configured to control the filament delivery device to deposit a filament on the substrate, the filament including a powder and a binder, wherein the binder is configured to be substantially removed from the filament and the powder includes a metal or alloy configured to be sintered to form an abradable layer.

Abstract: An additive manufacturing technique may include depositing, via a filament delivery device, a filament onto a surface of a substrate. The filament includes a binder and a powder including at least one metal or alloy and at least one braze alloy. The technique also includes sacrificing the binder to form a preform. The technique also includes sintering the preform to form a component including the at least one metal or alloy and the at least one braze alloy.

Abstract: A method may include cold isostatic pressing a fused filament fabricated component comprising a plurality of roads and channels between at least some roads of the plurality of roads. The plurality of roads may include a sacrificial binder and a powder including a metal or alloy. The cold isostatic pressing reduces a presence of the channels between the at least some roads to form a compacted fused filament fabricated component. The method also may include removing substantially all the sacrificial binder from the compacted fused filament fabricated component and leave a powder component; and sintering the powder component to form a sintered component.

Abstract: A method may include fused filament fabricating a fused filament fabricated component by delivering a softened filament to selected locations at or adjacent to a build surface. The softened filament may include a sacrificial binder and a powder including a shape memory alloy (SMA). The method also may include removing substantially all the sacrificial binder from the fused filament fabricated component to leave an unsintered component; and sintering the unsintered component to join particles of the SMA and form an SMA component.

Abstract: In some examples, a method for additively manufacturing a heat pipe, the method including depositing, via a filament delivery device, a filament to form a heat pipe preform, wherein the filament includes a binder and a metal or alloy powder; and sintering the heat pipe preform to form the heat pipe, the heat pipe including an outer shell, a wicking region, and a vapor transport region defined by the metal or alloy.

Abstract: An additively manufactured component that includes a tool with a region having a plurality of overlying metal layers each derived from a metal powder filament. The region has a predetermined yield point selected based on an operation to be performed with the tool.

Abstract: A method may include fused filament fabricating a fused filament fabricated component by delivering a softened filament to selected locations at or adjacent to a build surface. The softened filament may include a binder and a primary material. The binder is configured to release a secondary material upon heating at or above a conversion temperature. The method also may include heating the fused filament fabricated component to a temperature at or above the conversion temperature to sinter the primary material to form a sintered part and cause the binder to release the secondary material within the sintered part.

Abstract: In an aspect, the present disclosure discloses a medical sensor to be connected to a monitoring device for vital sign monitoring. The medical sensor includes a flexible circuit layer having an electrode pattern, a foam layer laminated on the flexible circuit layer, a bonding layer sandwiched between the flexible circuit layer and the foam layer to bond the foam layer with the flexible circuit layer, and a gel sponge disposed on and electrically connected to the electrode pattern through the foam layer and the bonding layer. The area of the bonding layer is smaller than the area of the foam layer. A part of the foam layer adjacent the perimeter is not covered by the bonding layer, and not bonded to the flexible circuit layer by the bonding layer to provide the medical sensor enough conformability to a body.

Abstract: A braze alloy for joining or repairing ceramic matrix composite (CMC) components comprises a braze composition including silicon at a concentration from about 48 at. % to about 66 at. %, titanium at a concentration from about 1 at. % to about 35 at. %, and an additional element selected from aluminum, cobalt, vanadium, nickel, and chromium. The braze composition comprises a melting temperature of less than 1300° C.

Abstract: Provided is a disclosure for a brush for cleaning a surface, where the brush comprises a center core and cleaning material around the center core. Modules are found on the cleaning material, where nodule density on the cleaning material varies.

Abstract: This invention provides a convenient method of forming and applying a thermoplastic material for roadway markings, comprising: obtaining individual components of a thermoplastic composite material suitable for roadway markings; mixing and heating the individual components to produce a fully compounded form of the thermoplastic composite material; solidifying and prilling the fully compounded form of the thermoplastic composite material to produce a plurality of thermoplastic prills; on a marking vehicle or mobile apparatus, introducing the thermoplastic prills to an on-board melter to produce a liquid phase of the thermoplastic prills; and applying the liquid phase of the thermoplastic prills to a roadway, thereby marking the roadway. Compositions and systems are also described. Surprisingly, prills melt in approximately half the time as the powder/granular form. Also, the melter can be operated at lower temperature, leading to less discoloration of material.

Abstract: Systems and methods for providing a soldered interface between a circuit board and a connector pin. The methods comprise: using a jet paste dispenser to apply first solder into a plated contact cavity formed in the circuit board; using a stencil screen printer to apply second solder (a) over the plated contact cavity which was at least partially filled with the first solder by the jet paste dispenser and (b) over at least a portion of a pad surrounding the plated contact cavity; inserting the connector pin in the plated contact cavity such that the connector pin passes through the second solder and extends at least partially through the first solder; and performing a reflow process to heat the first and second solder so as to create a solder joint between the circuit board and the connector pin.

Abstract: An example article includes a substrate and a barrier coating on the substrate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a bulk matrix and a plurality of discrete plugs inset within the bulk matrix and dispersed across the outer surface of the barrier coating. An example technique includes forming the barrier coating on the substrate of a component.