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Vol 50, No 18, 28 August 2014

  • Since the work reported in his paper K├╝stler has demonstrated diamagnetic levitation of multiple objects using a single magnet. Here three pieces of pyrolytic graphite are levitated freely over a single multipole NdFeB magnet

    Patterned foundation

    Diamagnetic levitation can be achieved with a single magnet, using magnetic field domain printing.
  • Dr Jingsi Li

    Dr Jingsi Li

    "The laser chip is the “heart and engine” of the whole optical fibre system."
  • The subbooster inverse Marx modulator

    Inside view

    Dr Mark Kemp talks about his latest work towards upgrading the RF systems to save significant amounts of energy at the SLAC National Accelerator Laboratory

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2013 Electronics Letters Premium Award Paper

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Electronic Letters vol 46 issue 1 - cover

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Multi sensor

Researchers in China and Hong Kong present a 3 point Distributed Bragg Reflector (DBR) fibre laser sensor array, for fibre bending radius, transverse load and axial strain sensing. Their aim is to demonstrate the potential of multiplexing this kind of sensor, which can support both frequency division and wavelength division multiplexing within one scheme.

People watching

Research from Johns Hopkins University in the US proposes two approaches to reduce signal distortion in interferometric angular velocity measurements. The approaches can be used to combine interferometric radar with Doppler radar for security applications to allow detection and classification of moving humans, regardless of trajectory relative to the radar. This is currently only possible with target tracking and significant additional processing.

Switch on the power

Researchers in China have reported an AlGaN/GaN/Si metal oxide semiconductor (MOS)-high electron mobility transistor (HEMT) design that improves threshold hysteresis. Also achieving low specific on-resistance and large maximum saturate drain current, the design is aimed at applications in medium voltage power devices.

Secure circuits

Two memristive circuits with steady-state and mixed-mode oscillations (MMOs), comprising both small and large-amplitude oscillations, have been proposed in research from the US and Poland. The numerical study shows the pinched hystereses and bifurcations produced by the circuit designs.

Patient imaging

Work from Korea models the use of a MR-based electrical impedance tomography (MREIT) technique, using a 3D finite element model of the human abdomen. The current pathway and the electric field distribution estimates produced were used to study the effects of different electrode placements. This could be used in optimising electrode configuration for in-vivo liver MREIT.

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Cover of Electronics Letters, Volume 49, Issue 25

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