The study compared seven measures for evaluating the mental workload with emergency operation procedure in nuclear power plants. An experiment with simulated procedures was carried out, and the results show that eye response measures are useful for assessing temporal changes of workload whereas cardiac measures are useful for evaluating the overall workload.
A three-level experiment was developed to validate a 3-D hand scanning and dimension extraction method with dimension data. At the first level, a resin hand model of a participant was fabricated to test the repeatability of the dimension data obtained by the 3-D method. At the second level, the actual hand of that participant was measured repeatedly using both the 3-D method and the traditional manual measurement method. The repeatability for both methods was investigated and compared. The influence of posture keeping, surface deformation and other human issues were also examined on the second level. At the third level, a group of participants were recruited and their hands were measured using both methods to examine any differences between the two methods on statistical descriptives. Significant differences, which varied among dimension types (length, depth/breadth, and circumference), were found between the 3-D method and the traditional method. 3-D anthropometric measurement and dimension extraction has become a prospective technology. The proposed three-level experiment provides a systematic method for validation of the repeatability of a 3-D method and compatibility between dimension data from a 3-D method and a traditional method.
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