sponsored by Tribology Group of The Institution of Mechanical Engineers and The Metals Society. sponsored by the Tribology Group of the Institution of Mechanical Engineers. sponsored by The Tribology Group of The Institution of Mechanical Engineers. sponsored by Materials Gorup of the Institution of Mechanical Engineers ; in association with Royal Aeronautical Society ...[et al.]. sponsored by the Power Industries Division of the Institution of Mechanical Engineers and the Japanese Society of Mechanical Engineers. sponsored by Aerospace Industries Division of the Institution of Mechanical Engineers ; co-sponsored by British Composites Society. sponsored by the Power Industries Division of the Institution of Mechanical Engineers, London, 14 May 1981. sponsored by the Automobile Division of the Institution of Mechanical Engineers in conjunction with the Aluminium Development Association. sponsored by the Process Industries Division of the Institution of Mechanical Engineers, 31 March 1982, Westminster, London. sponsored by Automobile Division of the Institution of Mechanical Engineers ; co-sponsored by Institution of Electrical Engineers.