Abstract: The present disclosure describes ultrasound systems and methods configured to interrogate the stiffness and/or elasticity of a target tissue via shear wave imaging Systems may be configured to stroboscopically transmit a plurality of push pulses into the target tissue at different focal depths. The quickly transmitted push pulses may generate shear waves that constructively interfere to form a composite shear wave. Example systems may include a beamformer configured to transmit push pulse parameters to a transducer array while receiving new push pulse parameters from a controller. Dual transmission and receipt of different push pulse parameters reconfigures the beamformer without interrupting push pulse transmission, thereby minimizing the delay between successive push pulses. Push pulses transmitted according to the disclosed methods may generate a composite shear wave configured to interrogate tissue with enhanced sensitivity across a broad depth.

Abstract: Front-end circuitry for an ultrasound system comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters and T/R switches, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Only the transmit ICs require high voltages, and the transmit/receive switches are integrated in the transmit ICs, isolating the receiver ICs from high voltages. The transmitters can be trimmed to adjust the pulse rise and fall rates, enabling the transmission of pulses with low harmonic frequency content and thus better harmonic images.

Abstract: The present disclosure is a linear luminaire connector assembly that is configured to connect linear luminaires in a desired geometric arrangement. The connector assembly provides modularity in the arrangement of two or more linear luminaires. The connector assembly provides connection points to which linear luminaires can connect such that the linear luminaires are arranged around the connector assembly in different directions to form any appropriate pattern of a user's choice. Further, the connector assembly is configured to house one or more electronic components/devices therein, such as IOT devices, sensors, cameras, emergency battery packs, wireless communication modules.

Abstract: The invention provides formulations and methods for ameliorating symptoms associated with metabolic disorders, such as hypoglycemia, obesity, diabetes, and the like by targeted administration to the oesphagus of a subject of Zn-?2-glycoproteins or a functional fragment thereof, alone or in combination with additional agents, such as ? adrenergin receptor agonists, ? adrenergin receptor antagonists, and/or glycemic control agents.

Abstract: Front-end circuitry for an ultrasound system is described which comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Waveform data for both the linear and pulser transmitters is stored in the transmit control and receiver ICs, saving pins on the FPGA, which is the conventional source of this data. The ADCs couple digital echo data to the FPGA for beamforming over serial bus lines, saving additional FPGA pins over a conventional parallel data arrangement. The inclusion of both pulser and linear waveform transmit capabilities in the transmit ICs enables the use of both types of transmitters in the formation of a multi-mode image, such as use of the pulsers for Doppler beams and linear transmitters for B mode beams in the formation of a colorflow image.

Abstract: Systems and methods for processing an analog waveform before it is sampled by an analog-to-digital converter (ADC) for the purpose of multiline beamforming in an ultrasound system are provided. The multiline beamforming is enabled by delaying the same waveform by two different time delays and by re-combining the delayed waveforms. This approach leverages an architecture that can also be used for temporal filtering, in which a single acoustic signal can be read out of the ARAM twice, separated by time, taking advantage of the fact that the ARAM allows for non-destructive read operations.

Abstract: Systems and methods for filtering an analog waveform before it is sampled by an analog-to-digital converter (ADC) in an ultrasound system are provided. The waveform can be filtered by delaying the same waveform by two different time delays and combining the delayed waveforms to effectively cancel out the fundamental components, thereby providing more sensitive detection of harmonic components in received echo signals. This filtering approach leverages an architecture that can also be used for multiline beamforming to perform the temporal filtering, in which a single acoustic signal can be read out of the ARAM twice, separated by time, taking advantage of the fact that the ARAM allows for non-destructive read operations.

Abstract: A catalyst for the conversion of NOX and N2O comprising iron chabazite and iron beta zeolite. A method of simultaneously reducing the NOX and N2O concentration in a process gas stream comprising contacting the process gas stream with a catalyst comprising iron chabazite and iron beta zeolite under conversion conditions.

Abstract: A catalyst for the conversion of NOX comprising iron chabazite and iron beta zeolite and a method of reducing the NOX concentration in a process gas stream comprising contacting the process gas stream with the catalyst. The catalyst is especially useful for high temperature deNOX conversion.

Abstract: A luminaire includes a back plate and a wire cover. The back plate includes a first tab that defines a tab receiving cavity. Further, the first tab includes a first mating feature formed therein. The wire cover includes an inner surface that defines an electronics cavity, an outer surface that defines a light source mounting platform, and a second tab. The second tab includes a second mating feature that is complementary to the first mating feature. The second tab of the wire cover is disposed in the tab receiving cavity defined by the first tab of the back plate to removably couple the wire cover to the back plate. Further, the second mating feature of the second tab engages the first mating feature of the first tab to releasably lock the wire cover to the back plate.

Abstract: Microbeamformers coupled to groups of array elements which partially beamform groups of elements for the formation of multiple receive lines are provided. In the microbeamformers, a delay line can be configured to output multiple signal streams that can be delayed by different amounts to support multiline receive in a microbeamformer. A read process during beamforming is not destructive, thereby allowing multiline receive beams to be generated from a single delay line.

Abstract: A catalyst for the conversion of NOX and N2O comprising iron chabazite and iron beta zeolite. A method of simultaneously reducing the NOX and N2O concentration in a process gas stream comprising contacting the process gas stream with a catalyst comprising iron chabazite and iron beta zeolite under conversion conditions.

Abstract: An ultrasound microbeamformer for one or more transducer arrays includes a plurality of channels, each of which has two transmitters and a receiver which is selectively coupled to two or more transducer elements by T/R switches and dynamically switchable receive switches (RXSW). The transmitters enable different transducers to be actuated differently, such as transmitting a high frequency pulse or waveform with one transmitter and a low frequency pulse or waveform with the other transmitter. The transmitters may both be used during the same transmit-receive cycle to simultaneously transmit and receive both high and low frequency signals for the formation of a common image.

Abstract: A modular troffer luminaire includes a housing having a perimeter frame, and a first light module removably attached to the housing. The first light module is replaceable by a second light module after the modular troffer luminaire is installed, where the first light module comprises an LED light source and an optic. The modular troffer luminaire further includes a sensor attached to the perimeter frame. The first light module is controllable based on sensing information from the sensor.

Abstract: A luminaire includes a back plate and a wire cover. The back plate includes a first tab that defines a tab receiving cavity. Further, the first tab includes a first mating feature formed therein. The wire cover includes an inner surface that defines an electronics cavity, an outer surface that defines a light source mounting platform, and a second tab. The second tab includes a second mating feature that is complementary to the first mating feature. The second tab of the wire cover is disposed in the tab receiving cavity defined by the first tab of the back plate to removably couple the wire cover to the back plate. Further, the second mating feature of the second tab engages the first mating feature of the first tab to releasably lock the wire cover to the back plate.

Abstract: The invention provides formulations and methods for ameliorating symptoms associated with metabolic disorders, such as cachexia, hypoglycemia, obesity, diabetes, and the like by administering Zn-?2-glycoproteins or a functional fragment thereof, alone or in combination with additional agents, such as ? adrenergin receptor agonists, ? adrenergin receptor antagonists, and/or glycemic control agents.

Abstract: Front-end circuitry for an ultrasound system comprises a beamformer FPGA integrated circuit, transmit ICs with both pulse transmitters and linear waveform transmitters and T/R switches, transmit control and receiver ICs, and analog-to-digital converter (ADC) ICs. Only the transmit ICs require high voltages, and the transmit/receive switches are integrated in the transmit ICs, isolating the receiver ICs from high voltages. The transmitters can be trimmed to adjust the pulse rise and fall rates, enabling the transmission of pulses with low harmonic frequency content and thus better harmonic images.

Abstract: A modular troffer luminaire includes a housing having a perimeter frame, and a first light module removably attached to the housing. The first light module is replaceable by a second light module after the modular troffer luminaire is installed, where the first light module comprises an LED light source and an optic. The modular troffer luminaire further includes a sensor attached to the perimeter frame. The first light module is controllable based on sensing information from the sensor.

Abstract: A digital transmit beamformer for an ultrasound system has a waveform sample memory which stores sequences of samples of different pulse transmit waveforms of differing pulse widths. The memory is shared by a plurality of transmit channels, each of which can access its own selected sample sequence, independent of the selections by other channels. Waveform sample readout by the channels occurs substantially simultaneously during a transmit event, producing a transmit beam from a transmit aperture with different pulse waveforms applied to different elements of the transmit aperture. Higher energy waveforms with wider pulse widths are applied to central elements of the aperture and lower energy waveforms with narrower pulse widths are applied to lateral elements of the aperture to produce an apodized transmit beam.

Abstract: A modular troffer luminaire includes a housing having a perimeter frame, and a first light module removably attached to the housing. The first light module is replaceable by a second light module after the modular troffer luminaire is installed, where the first light module comprises an LED light source and an optic. The modular troffer luminaire further includes a sensor attached to the perimeter frame. The first light module is controllable based on sensing information from the sensor.