W. Ye

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Components in engineered systems are subjected to stochastic deterioration due to uncertainties in the operating environmental conditions and material properties. The component could be, for example, moving parts such as gear boxes and pumps in a chemical plant or equipment production plant, the pipe segments in oil and gas pipeline system, and the heat(More)
A newly developed integrated fluorescence-Raman spectral system (λex = 532 nm) for detecting Chlorophyll-a (chl-a), Chromophoric Dissolved Organic Matter (CDOM), carotenoids and SO₄(2-) in situ was used to successfully investigate the diurnal variability of all above. Simultaneously using the integration of fluorescence spectroscopy and Raman spectroscopy(More)
The levels of dissolved sulfate and methane are crucial indicators in the geochemical analysis of pore water. Compositional analysis of pore water samples obtained from sea trials was conducted using Raman spectroscopy. It was found that the concentration of SO42- in pore water samples decreases as the depth increases, while the expected Raman signal of(More)
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