Measuring Relative-Story Displacement and Local Inclination Angle Using Multiple Position-Sensitive Detectors

We propose a novel sensor system for monitoring the structural health of a building. The system optically measures the relative-story displacement during earthquakes for detecting any deformations of building elements. The sensor unit is composed of three position sensitive detectors (PSDs) and lenses capable of measuring the relative-story displacement precisely, even if the PSD unit was inclined in response to the seismic vibration. For verification, laboratory tests were carried out using an Xθ-stage and a shaking table. The static experiment verified that the sensor could measure the local inclination angle as well as the lateral displacement. The dynamic experiment revealed that the accuracy of the sensor was 150 μm in the relative-displacement measurement and 100 μrad in the inclination angle measurement. These results indicate that the proposed sensor system has sufficient accuracy for the measurement of relative-story displacement in response to the seismic vibration

特別なニーズ及び障害のある子どもたちへの学習の推進 : イングランドにおける近年の政策と革新

In a two year pilot (2009-2011) involving 454 schools and 28,000 pupils with special educational needs and disabilities (SEND), a programme called ‘Achievement for All’ (AfA) demonstrated huge impact in terms of outcomes for the children and cultural change in schools. There are now over 1,200 schools using the AfA programme. This seminar will describe the AfA approach and engage participants in practical discussion and activities relating to the AfA programme