Six patients with severe haemophilic arthropathy of the elbow have been treated by limited excision arthroplasty using a sheet of silicone rubber as an interposition membrane. There were no complications. The symptoms and signs before and after operation have been assessed using the grading system advocated recently by the World Federation of Haemophilia. In all cases there was relief of pain a...

High-voltage silicone rubber composite insulators are widely used for outdoor insulation in power transmission lines. Silicone rubber, which is as a housing material, gradually degrades with long-term use the field. Therefore, to accurately determine lifetime of insulators, it essential evaluate this degradation. This paper describes results depth profiling, shows change chemical composition ca...