Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.

Abstract: An approach to printing a nickel precursor ink on a wide range of substrates for electronics and magnetic applications is disclosed. The nickel ink reduces to elemental nickel following heating. The ink was printed using an ultrasonic aerosol printing technique. By sintering the nickel precursor ink in the presence of a homogeneous magnetic field, the reduced nickel complex formed continuously aligned nickel nanofibers axially aligned with the direction of the magnetic field. The fabrication of aligned interlayered nanofiber films provides opportunities to produce structures with enhanced isotropic electrical and magnetic properties. The resistivity of the film was found to be as low as 0.56 m?·cm, and the saturation magnetization was measured to be 30 emu/g, which is comparable to bulk Ni. Magnetic anisotropy was induced with an easy axis along the direction of the applied magnetic field with soft magnetic properties.

Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.

Abstract: A dosimetry apparatus includes at least one sensor in a housing, a cover configured to permit compression waves to pass through, the cover is seated over the at least one sensor, and a dosimetry processing device with a memory. The dosimetry processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the at least one sensor; storing the readings with a time and date stamp when obtained; conducting an analysis based on the obtained readings; and outputting at least one of the stored readings or the conducted analysis.

Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.

Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.

Abstract: Ultra-thin nanometer-sealer freestanding polymeric membranes and methods for producing ultra-thin nanometer-scale freestanding recast membranes and ultra-thin nanometer-scale freestanding cross-linked membranes with solid internal backbone are disclosed.

Abstract: Material properties are manipulated using rapid pulse application of energy in combination with applied electric or magnetic fields. When sintering, annealing or crystallizing a target film, the pulse repetition cycle can be constrained to ensure material temperature rises above and falls below the Curie temperature before the next energy pulse. This process results in enhanced material properties as compared to traditional techniques having a single, slow temperature excursion and subsequent application of the applied external field.

Abstract: A capsule is disclosed which includes a flexible outer shell capable of transforming into an asymmetric shape; an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles, wherein the magnetic particles can move in response to an applied magnetic field. A valve system includes an in-line valve sized to fit within a flow channel including a capsule having a flexible outer shell containing an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles; and a magnetic field source disposed about the exterior wall of the channel.

Abstract: A noninvasive method for monitoring the blood pressure and arterial compliance of a patient based on measurements of a flow velocity and a pulse wave velocity is described. An embodiment uses a photoplethysmograph and includes a method to monitor the dynamic behavior of the arterial blood flow, coupled with a hemodynamic mathematical model of the arterial blood flow motion in a fully nonlinear vessel. A derived mathematical model creates the patient specific dependence of a blood pressure versus PWV and blood velocity, which allows continuous monitoring of arterial blood pressure.

Abstract: A system and method for providing assistive listening for a plurality of listeners in an environment including a plurality of acoustic sources. A microphone array in combination with an acoustic beamforming processor configured to receive the acoustic signals within the environment and to process the acoustic signals based upon a target location of an acoustic signal selected on a listener-controlled interface device to generate a steered beam pattern. The acoustic beamforming processor further configured to transmit the steered beam pattern to the listener-controlled interface device based on the target location selected. The listener-controlled interface device configured to provide the steered beam pattern to an ear-level transducer of a hearing-impaired listener.

Abstract: A method including a dosimetry device having at least one sensor in a housing and a dosimetry processing device with a memory. The dosimtery processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the sensor; storing the readings; conducting an analysis of the stored readings to determine an injury risk assessment; and outputting at least one of the conducted analysis of the determined injury risk assessment or the stored readings.

Abstract: Ultra-thin nanometer-sealer freestanding polymeric membranes and methods for producing ultra-thin nanometer-scale freestanding recast membranes and ultra-thin nanometer-scale freestanding cross-linked membranes with solid internal backbone are disclosed.

Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.

Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.

Abstract: A method including a dosimetry device having at least one sensor in a housing and a dosimetry processing device with a memory. The dosimtery processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the sensor; storing the readings; conducting an analysis of the stored readings to determine an injury risk assessment; and outputting at least one of the conducted analysis of the determined injury risk assessment or the stored readings.

Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.

Abstract: A dosimetry device includes at least one sensor in a housing and a dosimetry processing device with a memory. The dosimetry processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the sensor; storing the readings; conducting an analysis of the stored readings to determine an injury risk assessment; and outputting at least one of the conducted analysis of the determined injury risk assessment or the stored readings.

Abstract: Systems and methods for mapping an explosive event are discussed. In an example, a system for mapping an explosive event can include a plurality of sensor devices and a data analysis system. Each of the plurality of sensor devices can include an environmental sensor to measure at least one parameter of an explosive event. Each sensor device can also include a time synchronization circuit to synchronize time stamping of the parameter measured by the environmental sensor, and a wireless communication interface. The data analysis system can access measurement data generated by the plurality of sensor devices and analyze the measurement data to produce a visualization mapping the measurements onto a virtual representation of the test environment.