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Detailed sea‐level variation was investigated for Marine Isotope Stage (MIS) 19, based on diatom and grain size analyses of a marine sequence in a core of the Osaka Group. Diatom sea‐level proxies represent precession‐related signals correlated with highstands MIS 19.3 and 19.1, and lowstand MIS 19.2. Astronomical tuning shows the marine sequence has a uniform accumulation rate of about 60 cm ka−1...
Two-dimensional carrier distributions in phosphorus (P)-implanted emitter and P-diffused emitter were analyzed using super-higher-order scanning nonlinear dielectric microscopy (SHO-SNDM). The carrier distribution was clearly visualized and quantified using calibration sample. P-type, n-type and depletion layer was discriminated from local capacitance-voltage characterization obtained from SHO-SNDM...
The ecosystem dynamics of a modern benthic community in Osaka Bay was studied by analyzing sediment cores and fossil foraminifera deposited during the past 200 years. The results suggest that the high-density/low-diversity assemblage has appeared in the early 1900s, coinciding with the eutrophication of the bay resulting from the Japanese industrial revolution. This assemblage proliferated during...
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