Abstract: A percussive therapy device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, a push rod assembly operatively connected to the motor and configured to provide reciprocating motion in response to activation of the motor, and a massage attachment secured to a distal end of the push rod assembly. The reciprocating motion of the push rod assembly has a user-adjustable amplitude.

Abstract: An apparatus may include a regulated power converter, a control engine configured to control the regulated power converter based upon a regulation control parameter, and a parameter control system. The parameter control system may be configured to detect a transient event at an output of the regulated power converter. The parameter control system may be configured to modify, in response to the transient event, the regulation control parameter from a first value to a second value based upon a parameter modification profile. The parameter control system may be configured to modify, in response to modifying the regulation control parameter from the first value to the second value, the regulation control parameter according to a function of the parameter modification profile. The function may define a return of the regulation control parameter from the second value to the first value over a period of time.

Abstract: An example system includes a housing configured to house a portion of an electric machine and a heat transfer material, the heat transfer material is configured to contact a conductor of the portion of the electric machine and to remove heat from the conductor and transfer heat to the housing. The system includes a coolant configured to remove heat from the housing. An inner surface of the housing comprises a plurality of structures configured to increase an inner surface area of the housing, wherein the plurality of structures are configured to contact the heat transfer material.

Abstract: A rotary mechanical system includes an electric machine, such as an electric motor, and a housing at least partially housing one or more components of the electric machine. The housing defines an electrical cavity and a coolant cavity. The electrical cavity houses one or more electrical components, such as a stator, of the electric machine. The coolant cavity is configured to receive a liquid coolant, such as ethylene glycol and water, from a liquid coolant system. The housing is configured to seal a two-phase refrigerant within the electrical cavity to transfer heat from the one or more electrical components to a wall of the electrical cavity and from the wall of the electrical cavity to the liquid coolant.

Abstract: An apparatus includes a controller a current mode controller that produces an output voltage by supplying output current from at least one power supply phase of a power supply to power a load. The controller produces an error current signal based on a difference between a magnitude of the output current supplied from the power supply to a load and a phase current setpoint. Based on a magnitude of the error current signal, control a pulse width setting of a pulse width modulation signal controlling the at least one power supply phase. The controller varies a leading edge and a falling edge of a pulse width ON-time of the pulse width modulation signal over each of multiple control cycles depending on variations in the magnitude of the pulse width setting.

Abstract: Asynchronous Global Positioning System (GPS) baseband processor architectures with a focus on minimizing power consumption. All subsystems run at their natural frequency without clocking and all signal processing is done on-the-fly.

Abstract: Methods, apparatus, and systems for load control for cooling systems are provided. Coolant flows through a plurality of cooling units in a cooling system. The coolant flow is halted for each cooling unit that is undergoing a defrost cycle. Each cooling unit is configured to start a first defrost cycle at a random time within a predetermined time range after the cooling unit is started or powered on. After the first random start defrost cycle, a regular periodic defrost cycle may be maintained. Thus, the cooling units may be powered on simultaneously while still providing desynchronized defrost cycles, enabling the cooling system to maintain adequate coolant flow and heat load to avoid deleterious stop and restart cycles.

Abstract: Asynchronous Global Positioning System (GPS) baseband processor architectures with a focus on minimizing power consumption. All subsystems run at their natural frequency without clocking and all signal processing is done on-the-fly.

Abstract: Asynchronous Global Positioning System (GPS) baseband processor architectures with a focus on minimizing power consumption. All subsystems run at their natural frequency without clocking and all signal processing is done on-the-fly.

Abstract: The present invention relates to methods for the identification of clinical risk in patients having, or suspected of having, influenza. The invention also relates to methods for distinguishing between patients having influenza or viral pneumonia from patients having a symptomatically similar condition. The methods of the invention comprise determination of the level of expression of interferon alpha inducible protein 27 (IFI27) in a biological sample from a patient having, or suspected of having, influenza. Kits comprising suitable components for the performance of the methods are also provided by the invention. The invention allows stratification of patients into groups defining clinical risk, for example groups based on the severity of risk to the long-term health of the subject.

Abstract: The present invention relates to methods for the identification of clinical risk in patients having, or suspected of having, influenza. The invention also relates to methods for distinguishing between patients having influenza or viral pneumonia from patients having a symptomatically similar condition. The methods of the invention comprise determination of the level of expression of interferon alpha inducible protein 27 (IF127) in a biological sample from a patient having, or suspected of having, influenza. Kits comprising suitable components for the performance of the methods are also provided by the invention. The invention allows stratification of patients into groups defining clinical risk, for example groups based on the severity of risk to the long-term health of the subject.

Abstract: Methods, apparatus, and systems for load control for cooling systems are provided. Coolant flows through a plurality of cooling units in a cooling system. The coolant flow is halted for each cooling unit that is undergoing a defrost cycle. Each cooling unit is configured to start a first defrost cycle at a random time within a predetermined time range after the cooling unit is started or powered on. After the first random start defrost cycle, a regular periodic defrost cycle may be maintained. Thus, the cooling units may be powered on simultaneously while still providing desynchronized defrost cycles, enabling the cooling system to maintain adequate coolant flow and heat load to avoid deleterious stop and restart cycles.

Abstract: A scroll compressor includes a fixed scroll; an orbiting scroll that interfaces the fixed scroll; an Oldham ring that interfaces the orbiting scroll and has a pre-unbalanced force profile; and a motor shaft that interfaces the Oldham ring. The Oldham ring pre-unbalanced force profile is in the form of a sine wave. One of the shaft and the orbiting scroll has an imbalance weight portion; wherein the imbalance weight portion provides a weighted force profile that is 180° opposite of the pre-unbalanced force profile of the Oldham ring and produces in the Oldham ring a post-unbalanced force profile that is substantially a flat line.

Abstract: A scroll compressor includes a fixed scroll; an orbiting scroll that interfaces the fixed scroll; an Oldham ring that interfaces the orbiting scroll and has a pre-unbalanced force profile; and a motor shaft that interfaces the Oldham ring. The Oldham ring pre-unbalanced force profile is in the form of a sine wave. One of the shaft and the orbiting scroll has an imbalance weight portion; wherein the imbalance weight portion provides a weighted force profile that is 180° opposite of the pre-unbalanced force profile of the Oldham ring and produces in the Oldham ring a post-unbalanced force profile that is substantially a flat line.

Abstract: A system for balancing current supplied by a plurality of regulators coupled to a load includes circuitry operable to measure an average load current supplied by each regulator, determine an overall average current to be shared by the plurality of regulators, and compare each average load current with the overall average current to be shared by the plurality of regulators. The circuitry included in the system is also operable to adjust an output current of one or more of the plurality of regulators so that the plurality of regulators supply the same current to the load.

Abstract: The present invention relates to methods for the identification of clinical risk in patients having, or suspected of having, influenza. The invention also relates to methods for distinguishing between patients having influenza or viral pneumonia from patients having a symptomatically similar condition. The methods of the invention comprise determination of the level of expression of interferon alpha inducible protein 27 (IF127) in a biological sample from a patient having, or suspected of having, influenza. Kits comprising suitable components for the performance of the methods are also provided by the invention. The invention allows stratification of patients into groups defining clinical risk, for example groups based on the severity of risk to the long-term health of the subject.

Abstract: Asynchronous Global Positioning System (GPS) baseband processor architectures with a focus on minimizing power consumption. All subsystems run at their natural frequency without clocking and all signal processing is done on-the-fly.

Abstract: A scroll compressor may be provided with a check valve interposed between a balance chamber and a discharge chamber. The check valve may allow balance chamber pressure to remain low during start-up of the compressor. Low balance chamber pressure may allow an orbiting scroll to remain unclamped to a fixed scroll thereby reducing torque required to initiate rotation of the orbiting scroll. After steady-state operational speed is reached the check valve may close and the scrolls may be clamped together to produce a desired steady-state operating condition for the compressor.

Abstract: A method of balancing current supplied by a plurality of regulators coupled to a load includes: measuring an average load current supplied by each regulator; determining an overall average current to be shared by the plurality of regulators; comparing each average load current with the overall average current to be shared by the plurality of regulators; and adjusting an output current of one or more of the plurality of regulators so that the plurality of regulators supply the same current to the load.

Abstract: A multiphase power regulator includes a multiphase pulse width modulator, an output stage and an active transient response circuit. The output stage includes a high side transistor, a low side transistor and an inductor. The output stage is configured to supply power to a load responsive to signals generated by the multiphase pulse width modulator. The active transient response circuit is coupled between the output stage and the multiphase pulse width modulator and configured to detect the voltage level at the output stage and provide a signal to the multiphase pulse width modulator that is a function of the amplitude of the deviation of the detected voltage level from a target voltage.