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Wind Engineers, JAWE
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The Journal of the Geological Society of Japan, 2019
We propose the extensively studied Chiba section of the Chiba composite section (CbCS) as the Global Boundary Stratotype Section and Point (GSSP) to define the base of the Middle Pleistocene Subseries and Chibanian Stage. The CbCS is a continuous and expanded marine sedimentary succession within the middle of the Kokumoto Formation, Boso Peninsula, Chiba Prefecture. It contains well-preserved pollen, marine micro-and macrofossils, a tightly-defined Matuyama-Brunhes (M-B) paleomagnetic polarity boundary, and numerous tephra beds, allowing the establishment of a robust and precise chronostratigraphic framework across the Lower-Middle Pleistocene boundary. Its deep-marine, open-ocean continental slope setting, coupled with high sedimentation rates with no evidence of abrupt deposition, has resulted in preserving both terrestrial and marine environmental changes in and around Marine Isotope Stage (MIS). We have performed high-resolution oxygen isotope analysis, as well as detailed sedimentological, geochemical, and biostratigraphic studies of the CbCS, confirming the completeness of the stratigraphic interval spanning the Lower-Middle Pleistocene boundary. The M-B polarity boundary serves as the agreed primary guide for the Lower-Middle Pleistocene boundary, and the CbCS represents one of the most detailed marine sedimentary records yet obtained for this reversal, yielding an astronomical age of. ka with a duration of ca.. kyr. This section therefore offers an exceptional opportunity to calibrate the geological time scale as well as understand the dynamics of the geodynamo. The widespread Byk-E tephra lies close to the reversal, allowing precise regional lithostratigraphic correlation. The CbCS is easy to access from international airports. The section will be permanently preserved and maintained by the local government as a natural monument. Based on these attributes, the base of the Byk-E tephra bed in the Chiba section is the best horizon for establishing the GSSP that will define the Lower-Middle Pleistocene boundary.
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At dawn of legislation in Japan when a full-fledged electricity act was not yet aenacted , the Communication Ministry was issuing a permission of electricity business with conditions. The Tokyo Municipal Electricity Bureau was permitted to engage in an electric light power business but it was obligated to use the costly undeiground cable while the Tokyo Dento Co Ltd. previously received the permission with less costly airborne cable. This paper reports on the case of the Tokyo Municipal Electricity Bureau as a pioneer of the underground wiring in the period from later-Meiji to early Showa Era.
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This Paper Presents a study of small scale wind powered generation systems (SW − VAWT)oombined wi 血 selar cell generation unit as a reliable electric power source from Taiwan in Mingdao University , The subject of this study is a reliable and independent electric source powered by a sma 旦 l wind turbine whi ¢ h is intended to be deployed from Taiwan in Mingdao University . ln Ihese regions , wind is strong through a year and is constantly available and , if the wind turbine generation system is combined with solar cell unit , it will be an ideal independent eiectric source . The ultimate design concept was required for development and reliable eperation for independent electric source powered . Therefore , tbe system was simpli丘ed .
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