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This paper aims to propose an effortless procedure to determine the joint center location and limb length using Magneto and Inertial Measurement Units (M-IMU) based motion capture data. By exploiting the joint acceleration kinematic constraints, we establish an explicit relationship between the M-IMU measurements and the joint center location. Then, with a least square algorithm, the joint parameters...
An approach using virtual-sensor difference and physical-sensor difference based algorithm to visually confirm lower limb posture was proposed and a wearable sensor system was developed. To explicate the lower limb posture, flexion/extension (FE) and abduction/adduction (AA) hip joint angles and FE knee joint angles were estimated for orientations of the lower limb segments, and the knee and ankle...
In order to monitor wear condition of a type of six-cylinder diesel engine, 69 oil samples from an experiment engine in laboratory and 117 oil routine samples on site were taken. With the Spectroil M type Instrument made in U. S. America, 16 elements' concentrations of every oil sample were detected. All data were analyzed by Factor Analysis. The results shows that mining oil spectroscopy data by...
In order to monitor wear condition of marine mechanical equipment and find the cause of abnormal wear, 336 oil samples were taken from 8 steam turbine dynamos of the same type during the period of 8 years. With the Spectroil M type Instrument, elements' concentrations of each oil sample were analyzed. The average concentrations and their standard deviation of wear, contamination and additives elements...
Testing by RDE type AE spectrometer for wear metal analysis, the performance of lubricating oil was studied based on Principal Component Analysis and Notability Analysis. Wear particle debris derived from a Diesel engine components, coolant additives and seawater were added into hydraulic oils and diesel engine oils including CD40 and CF40. Thirty-three blend oils were obtained and analyzed by Spectroil...
Advanced nuclear power plant (NPP) concepts and technologies are currently under development rapidly, which make the traditional probabilistic risk assessment (PRA) framework appears some inapplicabilities. The objective of this paper is to illuminate this problem and seek redress. The discussion begins with traditional LWR NPP??s PRA framework, and then points out its cause of formation and limitations...
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