Abstract: An acoustic attenuation device extends from a first end to a second end and includes first and second sheets. A plurality of webs positioned between the first and second sheets cooperates with the first and second sheets to form a series of sound attenuation chambers containing a volume and mass of fluid. A first panel secured to the sheets closes the chambers at the first end of the device. A second panel secured to the sheets closes the chambers at the second end of the device. The device further includes first and second openings associated with each chamber and through which excited fluid resonates. The first and second openings extend through the first sheet into each chamber. The first openings have an invariable cross-section. At least one of the second openings has an adjustable cross-section for varying a resonant frequency of the chamber.

Abstract: A modular apparatus for acquiring biometric data may include circuitry operative to receive an input signal indicative of a biometric condition, the circuitry being configured to process the input signal according to a transfer function thereof and to provide a corresponding processed input signal. A controller is configured to provide at least one control signal to the circuitry to programmatically modify the transfer function of the modular system to facilitate acquisition of the biometric data.

Abstract: A modular system for acquiring biometric data includes a plurality of data acquisition modules configured to sample biometric data from at least one respective input channel at a data acquisition rate. A representation of the sampled biometric data is stored in memory of each of the plurality of data acquisition modules. A central control system is in communication with each of the plurality of data acquisition modules through a bus. The central control system is configured to collect data asynchronously, via the bus, from the memory of the plurality of data acquisition modules according to a relative fullness of the memory of the plurality of data acquisition modules.

Abstract: A method of forming a composite structure can include providing a plurality of composite panels of material, each composite panel having a plurality of holes extending through the panel. An adhesive layer is applied to each composite panel and a adjoining layer is applied over the adhesive layer. The method also includes stitching the composite panels, adhesive layer, and adjoining layer together by passing a length of a flexible connecting element into the plurality of holes in the composite panels of material. At least the adhesive layer is cured to bond the composite panels together and thereby form the composite structure.

Abstract: Systems and methodologies that provide for multi-parameter sensing via micro fabricated sensing structures operatively connected to oscillators, each micro-fabricated sensing structure in part defines a frequency of a respective associated oscillator. Output from such oscillators can be combined together, and then AC coupled with an incoming DC voltage that feeds the oscillators. The wiring arrangement includes two conducting paths/wires that carry a direct current to the oscillators as well as outputting the combined signal to external measurement devices. In addition, arrangements for pressure sensors are provided that mitigate errors from temperature variations and the induced stress/strains.

Abstract: Systems and methodologies that regulate in real time biometric indicia of an ambulatory patient via employing a distributed computing arrangement of modular component(s), which are tailored in part based on requirements of data to be measured and/or administered. Accordingly, the system can be scaled for different biometric requirements (e.g., data bits, operating frequencies and the like). Such an arrangement can regulate drug delivery units and/or acquire biometric data from an ambulatory patient.

Abstract: Systems and methodologies that provide for multi-parameter sensing via micro fabricated sensing structures operatively connected to oscillators, each micro-fabricated sensing structure in part defines a frequency of a respective associated oscillator. Output from such oscillators can be combined together, and then AC coupled with an incoming DC voltage that feeds the oscillators. The wiring arrangement includes two conducting paths/wires that carry a direct current to the oscillators as well as outputting the combined signal to external measurement devices. In addition, arrangements for pressure sensors are provided that mitigate errors from temperature variations and the induced stress/strains.