Online monitoring system and data management for KamLAND

In January 22, 2002, KamLAND started the data-taking. The KamLAND detector is a complicated system which consists of liquid scintillator, buffer oil, spherical balloon and so on. In order to maintain the detector safety, we constructed monitoring system which collect detector status information such as balloon weight, liquid scintillator oil level and so on. In addition, we constructed continuous Rn monitoring system for the $^7$Be solar neutrino detection. The KamLAND monitoring system consists of various network, LON, 1-Wire, and TCP/IP, and these are indispensable for continuous experimental data acquisition.Comment: Submitted to Nucl.Instrum.Meth.

A Study of Stylasterina from the Antarctic Sea

Several specimens of Stylasterina from the Antarctic Sea near the Syowa Base of Japanese Antarctic Research Expedition were described by the present writer. The following six species were discriminated, Errina cfr. antarctica (GRAY), Errina laterorifa EGUCHI, n. sp., Errina sp., Sporadopora mortenseni BROCH, Allopora bithalamus BROCK, Primnoisis antarctica (STUDER), and among hem Errina laterorifa EGUCHI was first investigated by the present writer

On Some Deep Water Corals from the Antarctic Sea

Hexacorals (Scleractinia), collected by the Japanese Antarctic Research Expedition in the sea off Prince Harald Coast near the Syowa Station during the 1957-1958 cruises, were studied and the following 9 species were identified by the author. Bathyactis symmetrica (POURTALES) Caryophyllia antarctica VON MARENZELLER Caryophyllia sp. Ceratotrochus? sp. Desmophyllum pseudoseptata EGUCHI, n. sp. Desmophyllum? sp. Flabellum distinctum M. EDW. et H. Fl. transversale conicum YABE et EGUCHI Fl. ongulense EGUCHI, n. sp. All the above genera are known as cosmopolitan and deep-sea corals. Three of them, Caryophyllia sp., Ceratotrochus? sp., and Desmophyllum? sp., are rather worn and even their generic identification is doubtful. Other two, D. pseudoseptata n. sp. and Fl. ongulense n. sp., are new to science. Cosmopolitan species are Bathyactis symmetrica and Flabellum distinctum; Fl. transversale conicum is common in the Japanese waters. Caryophyllia antarctica is an antarctic species known in other parts of the Antarctic Sea