Most of the street-based children are not educated beyond primary school and their living conditions are based on begging and doing odd jobs in the market and streets. Forty-six percent of the on-the-street children live with one parent, and 97 percent of the of-the-street children have lost contact with their parents. The on-the-street children have a higher percentage of family sector networks than the of-the-street children and the shelter or institutionalized children. Generally, school children still have strong family ties.
This paper reports the performance of short-gage-length optical fiber sensors embedded in a reinforced concrete specimen. Embedded extrinsic Fabry-Perot optical fiber sensors, attached to steel reinforcement rods, were used to monitor local displacements and strain in a concrete cross-beam specimen. The strain data obtained from the fider sensors were compared with data obtained from collocated foil strain gages. Absolute extrinsic Fabry-Perot interferometric sensors, capable of measuring absolute displacement and strain, were embedded in a stee-reinforced concrete specimen. Loading experiments performed on this specimen also yielded absolute strain information. The specimen was cyclically loaded for more than I00000 cycles in this geometry and the sensors still provided quantitative strain information regarding this specimen,
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