Abstract: Various improvements are provided to breathing training, monitoring and/or assistance devices. A portable device is provided which optionally includes a gas canister, a feedback system for implementing pressure control, and a visual output for indicating adherence to a breathing exercise to the user. The pressure control may provide regulation of different pressures for inhalation and exhalation.

Abstract: An opaque gahnite-spinel glass ceramic is provided. The glass ceramic includes a first crystal phase including (MgxZn1-x)Al2O4 where x is less than 1 and a second crystal phase includes at least one of tetragonal ZrO2, MgTa2O6, mullite, and cordierite. The glass ceramic has a Young's modulus greater than or equal to 90 GPa, and has a hardness greater than or equal to 7.5 GPa. The glass ceramic may be ion exchanged. Methods for producing the glass ceramic are also provided.

Abstract: A rotor blade includes first and second blade segments extending in opposite directions from a chord-wise joint. The first blade segment includes a beam structure that connects with the second blade segment via a receiving section. A chord-wise gap exists between an edge of the beam structure and an edge of the receiving section. The beam structure defines a first pin joint slot, whereas the receiving section defines a second pin joint slot that aligns with the first pin joint slot. First and second bushings are arranged in first ends of the first and second pin joint slots, each having a flange extending within the chord-wise gap. As such, the flanges abut against each other within the chord-wise gap so as to fill the chord-wise gap with a predetermined defined gap or interference. Further, a chord-wise extending pin is positioned through the bushings so as to secure the first and second blade segments together.

Abstract: The present invention relates to a connector for connection through a flexible barrier. The connector comprises at least a device pad and at least a landing pad. The device pad is arranged in close proximity to the landing pad for contactless connection through the flexible barrier to transmit and/or receive data and/or power between each other. The device pad and the landing pad are configured to attach and/or align to each other. Furthermore, a system for connection through a flexible barrier, an according method, computer program element and computer readable medium are provided.

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.

Abstract: Phosphate glasses and glass-ceramics exhibit a positive percent kill as measured by United States EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer and/or have a CIELAB L* value below 35, CIELAB a* and b* values within 5 of zero.

Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface. The rotor blade also includes one or more pin joints for connecting the first and second blade segments at the chord-wise joint. The pin joint(s) includes one or more pin joint tubes received within the pin joint slot(s). The pin joint slot(s) are secured within a bearing block. Further, a gap is defined between the pin joint slot(s) and the bearing block. Moreover, the rotor blade includes a shim within the gap between the pin joint slot(s) and the bearing block so as to retain the pin joint slot(s) within the bearing block. In addition, the shim is constructed of a liquid material that hardens after being poured into the gap.

Abstract: Phosphate glasses and glass-ceramics exhibit a positive percent kill as measured by United States EPA Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer and/or have a CIELAB L* value below 35, CIELAB a* and b* values within 5 of zero.

Abstract: Systems and methods for coupling subsea tubular members together are provided. An apparatus may be used to properly orient and/or provide communication between a first subsea tubular member that is being landed on a second subsea tubular member. An apparatus for coupling subsea tubular members may include an alignment sub and a corresponding alignment member. The alignment sub includes: a generally cylindrical body having one or more fluid, electric, or fiber optic lines extending therethrough, one or more couplings coupled to at least one end of the alignment sub, and an orientation profile disposed on a surface of the alignment sub. The alignment member has a profile designed to interface with the orientation profile of the alignment sub. One of the alignment sub and the alignment member remains stationary while the other rotates relative to the stationary structure.

Abstract: A rotor blade for a wind turbine including a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments include one or more shell members and an internal support structure. The internal support structure of the first blade segment includes a beam structure extending between a receiving end and a second end. The internal support structure of the second blade segment includes a receiving section that receives the receiving end of the beam structure of the first blade segment. The rotor blade further includes one or more connection locations where the first and second blade segments are secured together. Moreover, when the beam structure is received within the receiving section, a gap including a varying thickness is defined and maintained between the beam structure and the receiving section in a span-wise direction of the rotor blade.

Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. The blade segments each have at least one shell member defining an airfoil surface and an internal support structure. The internal support structure of the first blade segment includes a beam structure that structurally connects with the internal support structure of the second blade segment via a receiving section. The rotor blade further includes one or more pin joints positioned on at least one of internal support structures of the blade segments. Further, at least one of internal support structures is constructed, at least in part, of a resin material having a plurality of fibers cured therein. The fibers are arranged with varying fiber orientations along a span of the rotor blade at locations of the pin joint(s).

Abstract: A method for manufacturing a structural component of a blade segment for a segmented rotor blade of a wind turbine includes forming first and second portions of the structural component. The first and second portions include respective holes that align in a chord-wise direction. The method also includes placing the first and second portions of the structural component into a mold such that their respective holes align in the chord-wise direction. Further, the method includes placing a tooling pin through the aligned holes. In addition, the method includes infusing the first and second sides together in the second mold via a resin material so as to form the structural component. Moreover, the method includes removing the tooling pin after the structural component has cured.

Abstract: A rotor blade for a wind turbine includes first and second blade segments extending in opposite directions from a chord-wise joint. Each of the first and second blade segments has at least one shell member defining an airfoil surface and an internal support structure. The first blade segment includes a beam structure extending lengthwise that structurally connects with the second blade segment at a receiving section. At least one of the internal support structures of the first and second blade segments includes at least one spar cap. The rotor blade also includes one or more pin joints positioned on the spar cap(s) for connecting the blade segments. The spar cap is constructed of varying forms of materials along a span of the rotor blade, including at least two of: one or more infused composite laminates, one or more pre-preg composite laminates, one or more pre-fabricated or pre-cured composite elements, one or more additively-manufactured structures, or one or more non-composite structural solids.

Abstract: A rotor blade for a wind turbine includes first and second blade segments extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The internal support structure of the first blade segment includes a beam structure extending lengthwise, whereas the internal support structure of the second blade segment includes a receiving section that receives the beam structure of the first blade segment. Further, the rotor blade includes at least one chord-wise extending pin positioned through the beam structure and the receiving section at the chord-wise joint so as to secure the first and second blade segments together. The rotor blade includes at least one additional support member that receives a portion of the chord-wise extending pin so as to reduce a chord-wise bending deflection of the chord-wise extending pin at the chord-wise joint.

Abstract: A method for manufacturing a structural component of a blade segment for a segmented rotor blade of a wind turbine includes providing a mold of the structural component. The mold has an outer wall that defines an outer surface of the structural component. The method also includes securing at least one tooling pin to the outer wall for defining a pin joint slot in the structural component. Further, the method includes laying up one or more outer fiber layers in the mold so as to at least partially cover the outer wall. The outer fiber layer(s) has at least one hole that receives the tooling pin(s). As such, the outer fiber layer(s) form the outer surface of the structural component. Moreover, the method includes placing one or more structural features atop the outer fiber layer(s) in the mold. In addition, the method includes infusing the outer fiber layer(s) and the structural feature(s) together via a resin material so as to form the structural component.

Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments has at least one shell member defining an airfoil surface and an internal support structure. The first blade segment defines a first pre-bend in a flap-wise direction. The second blade segment defines a different, second pre-bend in the flap-wise direction. Further, the first pre-bend is greater than the second pre-bend. In addition, the first and second pre-bends provide an overall pre-bend in the flap-wise direction away from a tower of the wind turbine that allows for a predetermined deflection of the rotor blade towards the tower.

Abstract: A method of manufacturing a blade component of rotor blade of a wind turbine includes providing a plurality of pultrusions constructed of one or more fibers or fiber bundles cured together via a resin material. The method also includes placing a protective cap over at least one end of one or more of the plurality of pultrusions. Further, the method includes heat treating a surface of the plurality of pultrusions while the protective cap remains over the at least one end. Moreover, the method includes removing the protective cap from the at least one end. The method further includes arranging the plurality of pultrusions in a mold of the blade component. In addition, the method includes infusing the plurality of pultrusions together so as to form the rotor blade component.

Abstract: A method for manufacturing a structural component of a blade segment for a rotor blade includes providing a mold of the structural component having an outer wall that defines an outer surface of the structural component. The method also includes laying up one or more fiber layers in the mold so as to at least partially cover the outer wall. As such, the fiber layer(s) form the outer surface of the structural component. Further, the method includes providing one or more metal mesh layers having one or more ends. Moreover, the method includes providing a cover material to the end(s) of the metal mesh layer(s). In addition, the method includes placing the metal mesh layer(s) with the covered end(s) atop the fiber layer(s). Thus, the method includes infusing the fiber layer(s) and the metal mesh layer(s) together via a resin material so as to form the structural component.

Abstract: An intraluminal medical imaging interface device includes an arm assembly comprising one or more longitudinal members and one or more joints coupled to the one or more longitudinal members, and a head assembly coupled to a distal portion of the arm assembly and comprising a proximal portion coupled to the distal portion of the arm assembly and a distal portion. The distal portion of the head assembly includes a mechanical coupling and an electrical coupling configured to separably connect to an intraluminal imaging catheter and to transmit electrical signals between a console and the intraluminal imaging catheter. The arm assembly is configured to couple to a surface to maintain the head assembly at a first position and an orientation with respect to a patient without continued support by an operator. Associated devices, systems, and methods are also provided.

Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface. The rotor blade also includes one or more pin joints for connecting the first and second blade segments at the chord-wise joint. The pin joint(s) includes one or more pin joint tubes received within the pin joint slot(s). The pin joint slot(s) are secured within a load bearing block. Further, a gap is defined between the pin joint slot(s) and the load bearing block. Moreover, the rotor blade includes a shim within the gap between the pin joint slot(s) and the load bearing block so as to retain the pin joint slot(s) within the load bearing block. In addition, the shim is constructed of a liquid material that hardens after being poured into the gap.