Abstract: The present disclosure concerns a sensor for detecting a sample analyte having an oxidizable phenolic group suspected to be present in a sample. The sensor comprises a sensing electrode, a plurality of sensor analytes associated with the sensing electrode, optionally a baseline electrode, and a sample receiving region in fluid communication with the sensing electrode. The sensor analyte, before its association with the sensing electrode, is the same chemical species as the sample analyte.

Abstract: Functionally graded graphene materials, methods of making and uses thereof are described.

Abstract: Materials that exhibit stress-induced porosity, and methods of making and using the same, are described.

Abstract: Described herein are methods for continuous production of an exfoliated two-dimensional (2D) material comprising passing a 2D material mixture through a convergent-divergent nozzle, the 2D material mixture comprising a 2D layered material and a compressible fluid. The method of the present disclosure employs physical compression and expansion of a flow of high-pressure gases, leaving the 2D layered material largely defect free to produce an exfoliated 2D layered in a simple, continuous, and environmentally friendly manner.

Abstract: A sensor package for sensing vibration is described. The sensor package includes a carrier and a piezoelectric module coupled to the carrier. A wireless vibration sensor is further coupled to the carrier at a distance from the piezoelectric module. The sensor package further includes one or more conductive paths coupling the piezoelectric module to the wireless vibration sensor. The sensor package may be disposed on a bearing housing of a rail vehicle. The sensor package may also be utilized in marine, land and aviation applications.

Abstract: Described herein are methods for continuous production of an exfoliated two-dimensional (2D) material comprising passing a 2D material mixture through a convergent-divergent nozzle, the 2D material mixture comprising a 2D layered material and a compressible fluid. The method of the present disclosure employs physical compression and expansion of a flow of high-pressure gases, leaving the 2D layered material largely defect free to produce an exfoliated 2D layered in a simple, continuous, and environmentally friendly manner.

Abstract: A rail maintenance vehicle includes a frame, a workhead, and a vibration unit. The frame includes wheels that travel along rails. The vibration unit includes a rod member having a coil assembly coupled thereto. The vibration unit further includes a core assembly operable to receive the rod member therein. The core assembly includes a plurality of magnet members disposed along the periphery of the core assembly. The coil assembly and magnet members are operable to impart linear motion to the rod member relative to the core assembly.

Abstract: Described herein are methods for continuous production of an exfoliated two-dimensional (2D) material comprising passing a 2D material mixture through a convergent-divergent nozzle, the 2D material mixture comprising a 2D layered material and a compressible fluid. The method of the present disclosure employs physical compression and expansion of a flow of high-pressure gases, leaving the 2D layered material largely defect free to produce an exfoliated 2D layered in a simple, continuous, and environmentally friendly manner.

Abstract: Embodiments may relate to a segment driver that is to be coupled with a modulator segment of a Mach-Zehnder modulator. The segment driver may include a continuous-time linear equalizer (CTLE) incorporated within an amplifier stage of the modulator. The CTLE may be configured to identify an electrical signal that is related to an optical signal of the Mach-Zehnder modulator; reduce inter-symbol interference (ISI) of the electrical signal to generate a processed electrical signal; and output the processed electrical signal to the amplifier stage. Other embodiments may be described or claimed.

Abstract: The present disclosure relates to a rail vehicle having a track stabilization unit for use in stabilizing rails into ballast. The rail vehicle comprises a frame and a track stabilization unit coupled to the frame. The track stabilization unit includes a base and a plurality of wheels disposed about the base. The wheels are configured to bias against rails of a railroad track. At least one of the wheels is coupled to a motor through a drive shaft such that rotation of the drive shaft drives rotation of the wheel. Related methods are described.

Abstract: Materials that exhibit stress-induced porosity, and methods of making and using the same, are described.

Abstract: A sensor package for sensing vibration is described. The sensor package includes a carrier and a piezoelectric module coupled to the carrier. A wireless vibration sensor is further coupled to the carrier at a distance from the piezoelectric module. The sensor package further includes one or more conductive paths coupling the piezoelectric module to the wireless vibration sensor. The sensor package may be disposed on a bearing housing of a rail vehicle. The sensor package may also be utilized in marine, land and aviation applications.

Abstract: Functionally graded graphene materials, methods of making and uses thereof are described.

Abstract: Embodiments may relate to a segment driver that is to be coupled with a modulator segment of a Mach-Zehnder modulator. The segment driver may include a continuous-time linear equalizer (CTLE) incorporated within an amplifier stage of the modulator. The CTLE may be configured to identify an electrical signal that is related to an optical signal of the Mach-Zehnder modulator; reduce inter-symbol interference (ISI) of the electrical signal to generate a processed electrical signal; and output the processed electrical signal to the amplifier stage. Other embodiments may be described or claimed.

Abstract: A rail maintenance vehicle includes a frame, a workhead, and a vibration unit. The frame includes wheels that travel along rails. The vibration unit includes a rod member having a coil assembly coupled thereto. The vibration unit further includes a core assembly operable to receive the rod member therein. The core assembly includes a plurality of magnet members disposed along the periphery of the core assembly. The coil assembly and magnet members are operable to impart linear motion to the rod member relative to the core assembly.

Abstract: Described herein are methods for continuous production of an exfoliated two-dimensional (2D) material comprising passing a 2D material mixture through a convergent-divergent nozzle, the 2D material mixture comprising a 2D layered material and a compressible fluid. The method of the present disclosure employs physical compression and expansion of a flow of high-pressure gases, leaving the 2D layered material largely defect free to produce an exfoliated 2D layered in a simple, continuous, and environmentally friendly manner.

Abstract: The present disclosure relates to a rail vehicle having a track stabilization unit for use in stabilizing rails into ballast. The rail vehicle comprises a frame and a track stabilization unit coupled to the frame. The track stabilization unit includes a base and a plurality of wheels disposed about the base. The wheels are configured to bias against rails of a railroad track. At least one of the wheels is coupled to a motor through a drive shaft such that rotation of the drive shaft drives rotation of the wheel. Related methods are described.

Abstract: Provided herein is a technique by which a user may interact with an apparatus configured to provide for display of an image, such as with augmented reality glasses. An example embodiment may provide a method including receiving an indication of a first motion event initiated on a first side of a device from a motion sensor, determining a first motion event pattern based on one or more directional components of the first motion event, distinguishing the first motion event from a motion event initiated on a second side of the device, correlating a first operation with the first motion event pattern, and causing the first operation to be performed. The first operation may include causing the opacity of an image presented on a substantially transparent display to be increased.

Abstract: Disclosed is a circuit architecture for cancellation of threshold voltage offsets for an array of sense amplifiers. An offset calibration controller, which may be embedded as a hard-wired circuit in the transceiver core circuits, writes the offset adjustment values to a memory-mapped interface circuit. The memory-mapped interface circuit outputs the offset adjustment values to offset adjustment circuits for the sense amplifiers. The offset adjustment circuits may utilize a body bias technique. Advantageously, the disclosed circuit architecture provides for the minimization of residual offset without sacrificing bandwidth. Other embodiments, features and advantages are also disclosed.

Abstract: Provided herein is a technique by which a user may interact with an apparatus configured to provide for display of an image, such as with augmented reality glasses. An example embodiment may provide a method including receiving an indication of a first motion event initiated on a first side of a device from a motion sensor, determining a first motion event pattern based on one or more directional components of the first motion event, distinguishing the first motion event from a motion event initiated on a second side of the device, correlating a first operation with the first motion event pattern, and causing the first operation to be performed. The first operation may include causing the opacity of an image presented on a substantially transparent display to be increased.