Abstract: Solid oxide fuel cells (SOFCs) are provided. A SOFC may comprise a cathode, an anode, and a solid oxide electrolyte between the anode and the cathode, wherein the cathode comprises a perovskite compound. The perovskite compound may be characterized by a log k* value which is less negative than about ?6.0 cm/s; an energy above the convex hull of less than about 40 meV/(formula unit); a bandgap of about 0 and a charge transfer gap of about 0.

Abstract: The present disclosure pertains to detection of anomalous conditions in a variety of types of systems. In one embodiment, a system may be configured to identify anomalous conditions in a stream of measurements. The system may include a communications interface configured to receive a stream of measurements. An archive subsystem may maintain a data archive comprising a statistical representation of the stream of measurements. A pre-processing subsystem may divide the stream of measurements into a plurality of data windows. The plurality of data windows may be analyzed by an analysis subsystem configured to generate a plurality of normalized representations based on the data archive. The plurality of normalized representations may be grouped into a plurality of ranges. An anomaly detection subsystem may perform a comparison of the plurality of normalized representations to at least one threshold and may determine that the comparison indicates an anomalous condition.

Abstract: According to some aspects, a tug and barge arrangement is provided that is configured with an articulated conduit system for transferring fluid between the tug and the barge. In some embodiments, an articulated conduit system is provided that comprises a plurality of conduits fluidically interconnected by rotatable joints configured to permit positional alterations of the fluid conduits that result from differential movement between a tug and barge.

Abstract: A system for measuring topography of the surface of a ground engaging tool is disclosed. The system may include a machine and the ground engaging tool. A phased array ultrasonic sensor may be associated with the ground engaging tool and configured to create ultrasonic pulses within the ground engaging tool. A communication device may be associated with the phased array ultrasonic sensor. A monitoring component may communicate with the phased array ultrasonic sensor via the communication device, and may be configured to receive signals from the phased array ultrasonic sensor and monitor the topography of the ground engaging tool.

Abstract: An electron emitter device is provided comprising a cathode comprising a conductive transition metal perovskite oxide comprising mobile conducting electrons exhibiting a conductivity of at least 10?6 ??1-cm?1 at room temperature, the transition metal perovskite oxide having a surface from which the mobile electrons are induced to emit upon receiving sufficient energy from an energy source; and an anode electrically coupled to the cathode and positioned to define an interelectrode conductive region between the anode and the cathode, onto which anode the emitted electrons are collected. The transition metal perovskite oxide may have formula Sr1-xBaxVO3. Related methods and devices based on the electron emitter device are also provided.

Abstract: Methods of forming a semiconductor device include forming a dielectric layer on a Group III-nitride semiconductor layer, selectively removing portions of the dielectric layer over spaced apart source and drain regions of the semiconductor layer, implanting ions having a first conductivity type directly into the source and drain regions of the semiconductor layer, annealing the semiconductor layer and the dielectric layer to activate the implanted ions, and forming metal contacts on the source and drain regions of the semiconductor layer.

Abstract: Beam mounted chair assemblies may include at least two standards supported on a floor, a beam secured to, and supported by, the standards, and a plurality of chair assemblies secured to, and supported by, the beam. Chair assemblies may be secured to a beam via associated chair brackets. Chair brackets may include chair seat pivots that pivotally secure a chair seat in proximity to a chair back such that the chair seat may pivot between an up and a down position. Chair brackets and standards may be secured to a beam such that the chair brackets and standards may be linearly positioned along a full length of the beam without interfering with one another.

Abstract: The telescopic seating systems, and foldable chairs and related components for use within telescopic seating systems, of the present disclosure may incorporate occupant support elements within a space between a top surface of a seat frame structure and a bottom surface of the seat frame structure. Springs may be attached to the top surface of the chair frame structure and configured to extend into the space. Alternatively, or additionally, a chair cushion may extend into the space.

Abstract: A reconfigurable seating system may include a bank of seating units disposed in rows. Associated chairs may be arranged in the seating units, supported on support beams by chair brackets. The reconfigurable seating systems may be installed on flat floors or sloped floors and may be arranged in linear-rows and/or arched-row configurations.

Abstract: Rocker style chairs and rocker style chairs with pivoting seats are provided along with modular components for use within rocker style chairs and parts for assembling within the modular components. The related components and chair assemblies minimize manufacturing time, maximize material usage and decrease related installation time. The related rocker style chairs may provide comfort to chair occupants and minimize noise during related chair component motion.

Abstract: According to some aspects, a tug and barge arrangement is provided that is configured with an articulated conduit system for transferring fluid between the tug and the barge. In some embodiments, an articulated conduit system is provided that comprises a plurality of conduits fluidically interconnected by rotatable joints configured to permit positional alterations of the fluid conduits that result from differential movement between a tug and barge.

Abstract: A system for measuring wear performance of a ground engaging tool includes a first ultrasonic sensor that sends pulses in a direction substantially at a perpendicular to an unworn leading edge of the tool, and a second ultrasonic sensor that sends pulses in a direction at an angle offset with respect to the perpendicular to the unworn leading edge of the tool. The system also may include a wireless communication element sending signals from the ultrasonic sensors, and a controller receiving the signals from the communication element and determining wear performance of the ground engaging tool.

Abstract: Rocker style chairs and rocker style chairs with pivoting seats are provided along with modular components for use within rocker style chairs and parts for assembling within the modular components. The related components and chair assemblies minimize manufacturing time, maximize material usage and decrease related installation time. The related rocker style chairs may provide comfort to chair occupants and minimize noise during related chair component motion.

Abstract: A system for measuring topography of the surface of a ground engaging tool is disclosed. The system may include a machine and the ground engaging tool. A phased array ultrasonic sensor may be associated with the ground engaging tool and configured to create ultrasonic pulses within the ground engaging tool. A communication device may be associated with the phased array ultrasonic sensor. A monitoring component may communicate with the phased array ultrasonic sensor via the communication device, and may be configured to receive signals from the phased array ultrasonic sensor and monitor the topography of the ground engaging tool.

Abstract: Presenting items in a two-dimensional access pane includes presenting a first set of icons arranged contiguously and in two dimensions of the access pane, where each of the icons corresponds to an item and at least some of the items are container icons that represent containers that contain other items and expanding at least one of the container icons to show a first container pane having icons corresponding to items contained in a corresponding container, where icons in the first container pane are arranged contiguously and in two dimensions of the first container pane. At least some of the icons in the first container pane may be container icons that represent containers that contain other items. The items may be files in a file system provided in connection with a personal computer that runs Macintosh OS, MS Windows, and Linux. The items may be data in a database system.

Abstract: A padlock with a removable lock cylinder. A retaining member couples the lock cylinder to the padlock's body. In some embodiments, the retaining member includes a flange for actuating the retaining member between a retained position and a released position. The flange is accessible through an opening of the lock body when the shackle is in the unlocked position and inaccessible when the shackle is in the locked position.

Abstract: A composite high reflectivity mirror (CHRM) with at least one relatively smooth interior surface interface. The CHRM includes a composite portion, for example dielectric and metal layers, on a base element. At least one of the internal surfaces is polished to achieve a smooth interface. The polish can be performed on the surface of the base element, on various layers of the composite portion, or both. The resulting smooth interface(s) reflect more of the incident light in an intended direction. The CHRMs may be integrated into light emitting diode (LED) devices to increase optical output efficiency.

Abstract: The telescopic seating systems, and foldable chairs and related components for use within telescopic seating systems, of the present disclosure may incorporate occupant support elements within a space between a top surface of a seat frame structure and a bottom surface of the seat frame structure. Springs may be attached to the top surface of the chair frame structure and configured to extend into the space. Alternatively, or additionally, a chair cushion may extend into the space.