Abstract: Systems and methods for using light switches to control lighting and other functions are disclosed. Each switch may be a manual switch that is mounted to a wall. A biasing device may be positioned proximate each switch. When a user moves the switch out of a first position and into a second position or toward a second position, the delivery of household power to one or more light units may be interrupted. However, when the user releases the switch, the biasing device may provide an immediate automatic return of the manual switch to the first position. The resulting short interruption in household power may be used as a signal for controlling operation of the one or more light units and/or other electronic devices installed at one or more lighting sites corresponding to the switch.

Abstract: Exemplary systems and methods for generating fluid distribution system solutions are provided. A user interface is provided that enables user to make selections relating to components and/or characteristics of a target fluid distribution system. The interface is configured to provide feedback based on user selections and verify that the selections are compatible. Exemplary systems and methods are configured to verify the user input and generate a target fluid distribution system solution based on the input.

Abstract: Selective recovery of C2 to C4 hydrocarbons is achieved through the use of a converging-diverging nozzle, or de Laval nozzle. The vapor stream comprising C2 to C4 hydrocarbons is fed into an inlet of a de Laval nozzle having a throat. The vapor stream may have an initial temperature of between 0° C. and 100° C., and an initial pressure of between 200 psig and 500 psig. In the de Laval nozzle, the vapor stream expands after passing through the throat of the de Laval nozzle, producing a vapor stream having re-duced temperature and pressure. Then, C2 to C4 hydrocarbons condense from the reduced-temperature vapor stream as liquid droplets, which may be recovered. Fractionation of C2 to C4 hydrocarbons by means of a de Laval nozzle is possible; the technique allows select-ive recovery of propane from a mixture of propane and ethane.

Abstract: A variable speed transmission is disclosed, with a transmission apparatus which includes a planetary gear set having a ring gear and a sun gear. The variable speed transmission further includes a primary engine for powering the sun gear, a braking device engaging the ring gear, and a controller configured to alter the rotational speed of the ring gear by adjusting the braking device.

Abstract: A variety of active units that sense environmental variables and take various actions are described. In one embodiment, an active unit includes at least one sensor to detect a change in an environmental variable and generate a sensor signal and an action module configured to influence the environmental. The active unit may also include a communication module and a processor module configured to accept the sensor signal and determine if the environmental variable exceeds a threshold and to instruct the action module not to take action to influence the environmental variable, and instruct the communication module to transmit a signal to other active units that the environmental variable has exceeded the threshold.

Abstract: Ultrasound imaging systems are provided. An ultrasound system according to some embodiments includes a console configured to selectively communicate with a first ultrasound imaging device and a second ultrasound imaging device. The console includes a housing, a computing device disposed within the housing, and a connector receptacle assembly coupled to the housing. The connector receptacle assembly includes a first connector bank including a first plurality of electrical connections; and a second connector bank including a second plurality of electrical connections. The connector receptacle assembly is selectively matable to a first connector of the first ultrasound imaging device via only the first connector bank and to a second connector of the second ultrasound imaging device via the first and second connector banks.

Abstract: Selective recovery of C2 to C4 hydrocarbons is achieved through the use of a converging-diverging nozzle, or de Laval nozzle. The vapor stream comprising C2 to C4 hydrocarbons is fed into an inlet of a de Laval nozzle having a throat. The vapor stream may have an initial temperature of between 0° C. and 100° C., and an initial pressure of between 200 psig and 500 psig. In the de Laval nozzle, the vapor stream expands after passing through the throat of the de Laval nozzle, producing a vapor stream having re-duced temperature and pressure. Then, C2 to C4 hydrocarbons condense from the reduced-temperature vapor stream as liquid droplets, which may be recovered. Fractionation of C2 to C4 hydrocarbons by means of a de Laval nozzle is possible; the technique allows select-ive recovery of propane from a mixture of propane and ethane.

Abstract: Selective recovery of C2 to C4 hydrocarbons is achieved through the use of a converging-diverging nozzle, or de Laval nozzle. The vapor stream comprising C2 to C4 hydrocarbons is fed into an inlet of a de Laval nozzle having a throat. The vapor stream may have an initial temperature of between 0° C. and 100° C., and an initial pressure of between 200 psig and 500 psig. In the de Laval nozzle, the vapor stream expands after passing through the throat of the de Laval nozzle, producing a vapor stream having reduced temperature and pressure. Then, C2 to C4 hydrocarbons condense from the reduced-temperature vapor stream as liquid droplets, which may be recovered. Fractionation of C2 to C4 hydrocarbons by means of a de Laval nozzle is possible; the technique allows selective recovery of propane from a mixture of propane and ethane.

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 kit and method for aligning a scope located a shooting weapon including calibrating first and second electronic alignment sensors while on the shooting weapon, placing the second electronic alignment sensor on the scope, and adjusting an alignment of the scope relative to the shooting weapon if the first and second electronic alignment sensors indicate relative vertical misalignment.

Abstract: A stowable computer workstation (“SCW”) for a workplace within a vehicle is described, where the workplace has an inner sidewall of the vehicle. The SCW may include a video display mount assembly and a deployment support attached to the video display mount assembly. The deployment support is configured to deploy and stow the video display mount assembly against the inner sidewall and the deployment support is secured to the inner sidewall.

Abstract: A kit and method for aligning a scope located a shooting weapon including calibrating first and second electronic alignment sensors while on the shooting weapon, placing the second electronic alignment sensor on the scope, and adjusting an alignment of the scope relative to the shooting weapon if the first and second electronic alignment sensors indicate relative vertical misalignment.

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: A stowable computer workstation (“SCW”) for a workplace within a vehicle is described, where the workplace has an inner sidewall of the vehicle. The SCW may include a video display mount assembly and a deployment support attached to the video display mount assembly. The deployment support is configured to deploy and stow the video display mount assembly against the inner sidewall and the deployment support is secured to the inner sidewall.

Abstract: Selective recovery of C2 to C4 hydrocarbons is achieved through the use of a converging-diverging nozzle, or de Laval nozzle. The vapor stream comprising C2 to C4 hydrocarbons is fed into an inlet of a de Laval nozzle having a throat. The vapor stream may have an initial temperature of between 0° C. and 100° C., and an initial pressure of between 200 psig and 500 psig. In the de Laval nozzle, the vapor stream expands after passing through the throat of the de Laval nozzle, producing a vapor stream having reduced temperature and pressure. Then, C2 to C4 hydrocarbons condense from the reduced-temperature vapor stream as liquid droplets, which may be recovered. Fractionation of C2 to C4 hydrocarbons by means of a de Laval nozzle is possible; the technique allows selective recovery of propane from a mixture of propane and ethane.

Abstract: A stowable computer workstation (“SCW”) for a workplace within a vehicle is described, where the workplace has an inner sidewall of the vehicle. The SCW may include a video display mount assembly and a deployment support attached to the video display mount assembly. The deployment support is configured to deploy and stow the video display mount assembly against the inner sidewall and the deployment support is secured to the inner sidewall.

Abstract: A system and method for using augmented reality device for use during a surgical procedure are described. A system may include an augmented reality device to present a virtual indication, such as a virtual indication of a surgical instrument, a force vector, a direction, or the like. The augmented reality device may present a virtual aspect of a procedure, such as a virtual animation of a step of a procedure. The augmented reality device may present a virtual object, indication, aspect, etc., within a surgical field while permitting the surgical field or aspects of the surgical field to be viewed through the augmented reality display (e.g., presenting virtual objects mixed with real objects).

Abstract: A layered exercise contact counter display tracking and showing repetitive contacts with the lens contact surface of a housing covering a sensor pad, which responds to contacts sending a signal to a powered circuit board and remote tracking devices to record and display the number of repetitive hits adapted for mounting on an exercise device or a support surface to encourage an exerciser to complete and exercise or contact event.