16 research outputs found

    Quadrature signal splitting technique offering octave-band performance

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    Network planning for third-generation mobile radio systems

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    Spatially controlling neuronal adhesion and inflammatory reactions on implantable diamond

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    The mechanical and chemical properties of diamond and diamond-like carbon (DLC) coatings make them very suitable materials for improving the long-term performance of invasive electrode systems used in brain-computer interfaces (BCIs). We have performed in vitro testing to demonstrate methods for spatially directing neural cell growth and limiting the detrimental attachment of cells involved in the foreign body response on boron-doped diamond and DLC. Inkjet-printing, laser micro-machining, and stencil-assisted patterning techniques were used to control neuronal adhesion and modify inflammatory cell attachment. This work presents micro-tailored materials that could be used to improve the long-term quality of recorded signals from neural-electronic interfaces. © 2011 IEEE

    Overview of physics results from NSTX

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    Amplifier linearisation by exploitation of backwards-travelling signals

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    A new stochastic spatio-temporal propagation model (SSTPM) for mobile communications with antenna arrays

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    Gain-element transfer response control for octave-band feedforward amplifiers

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    Gain and phase matching requirements of cubic predistortion systems

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    Analysis and performance of simple active feedback linearisation scheme

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