In major cities around the world, urbanization and rising land prices have been driving an increase in real estate development adjacent to, and above in many cases, railway lines and other transportation corridors. Structure-borne sound and vibrations from traffic can be are annoying to human occupants; if high, they can also be disruptive to operation of manufacturing facilities, medical facil...

The influence of the vertical component ground motion is investigated for assessing distribution seismic response unanchored rigid blocks. Multiple stripes site-hazard-consistent motions are employed calculating rocking blocks with and without inclusion component. comparison resulting being made both single records full suites, employing a paired record versus an ensemble-statistics comparison,...

In this report the transient rocking response of electrical equipment subjected to trigonometric pulses and near-source ground motions is investigated in detail. First the rocking response of a rigid block subjected to a half-sine pulse motion is reviewed. It is shown that the solution presented by Housner (1963) for the minimum acceleration amplitude of a half-sine pulse that is needed to over...

Experiment was carried out to study the proprioception accuracy of elderly (61-83 years old) and young (22-36 years old) subjects during contralateral elbow matching in sagittal plane. The subjects performed the task under ordinary condition and under experimental condition (matching forearm attached to the rocking cylindrical platform of low (LS), or high (HS) height, so that the elbow flexion...

T he afternoon had been very long, longer than most, because we didn't seem to be getting anywhere. Even while his grandmother was dying in the hospital, Johnny refused to accept it. Now that she was gone, his denial grew stronger. The harder I tried to console him, the more he resisted. I wanted one thing—to give Johnny hope. I tried to explain to Johnny how death happens. But this eight-year-...