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This paper describes a medical imaging technique, called Electrical-Impedance Tomography. It then considers those applications in which a real-time EIT system would be useful. A design for such a system is presented, highlighting those areas that are critical in a real-time application.
Field-installable duplex optical-fibre couplers based on bending effect are described. Addition of these couplers to a high-integrity optical-fibre bus is possible without interrupting operation. The duplex couplers are designed to have a variable tapping ratio, to power a hybrid optical-fibre...
A non-linear multi-input multi-output controller design technique is applied to control a wingless missile. It is readily demonstrated that this design is unique in the sense that it not only results in fast decoupled transient behaviour, but also that it can be extended simply to give safe...
In this paper several laser-based spectroscopic methods capable of detecting low concentrations of a particular element are described, with particular emphasis on the contrasting techniques of Laser-Induced Breakdown Spectroscopy (LIBS), and Resonance Ionisation Mass Spectroscopy (RIMS). Simple...
A new method of measuring local heat transfer coefficients to rough surfaces has been developed. The technique was applied to an idealised section of a large-scaled model of a turbine blade cooling passage to assess the effect of surface irregularities which result from the blade manufacturing...
A phase-sensitive scanning optical microscope is described which can measure surface height changes of less than 3 ångströms. The system is based on a heterodyne version of the Michelson interferometer, and has been designed to reject phase noise caused by vibration in the optics and the...
This is a design study on a Generic VSTOL Aircraft Model (GVAM) supplied by the Royal Aerospace Establishment, Bedford. Widely varying dynamics requires some form of gain scheduling or switching. The approach taken is to switch between linear controllers designed on linearisations of the...
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