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Indirect tool condition monitoring technique using surface texture analysis is gaining a parallel improvement with the advances of digital image processing techniques with the advent of high- end machine vision systems for fulfilment of high product quality. In this work, condition monitoring of HSS mills and coated carbide milling inserts has been performed by analyzing the resulting end-milled surface...
Photoplethysmography (PPG) is a non-invasive electro-optical technique widely used in the monitoring of the pulsations associated with changes in blood volume in a peripheral vascular bed. The technique is based on the absorption properties of vascular tissue when it is transilluminated by light. Photoplethysmography is also used in the estimation of arterial blood oxygen saturation (SpO2) by pulse...
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