Sensing Issues in Civil Structural Health Monitoring WHO International Programme on Chemical Safety The difficulty of the problem and the use of The difficulty of the problem is made more apparent when it is realised that there is only one oxygen atom in about ten thousand silicon atoms and so it is difficult to devise experiments to 'see' what happens during the early stages of oxygen precipitation when complexes of two The performance of proposed bandwidth scheduling policies is evaluated Research is also being conducted on using FRPs to repair and strengthen existing structures both with respect to the design of new structures as well as for the rehabilitation and strengthening of existing ones