In this paper,the problems of stability of weak power system as DC sys te m urgently shutdown,disturbing the running pole caused by idle pole closing no l oad convertor transformer and erroneous firing of convertor valves,which occur red in commissioning of Shengsi HVDC project with weak receiving terminal,are an alyzed and discussed.

Preliminary evaluation on effects of artificial reef project in Shengsi;

A preliminary approach on the ecosystem model of the artificial reef in Shengsi;

160 rainwater samples were collected from Qianliyan island (Yellow Sea) and Shengsi island (East China Sea) during 2000～2001.

Community ecology of intertidal zone of Shengsi archipelago Ⅱ. Community structure of benthic invertebrates in rocky intertidal zone;

Community ecology of intertidal zone of Shengsi archipelagoⅠ.Species constitution and seasonal variation of benthic biocommunity in rocky intertidal zone;

From the April of 1993 to the January of 1994,the benthon of rocky intertidal zone along Shengsi archipelago were investigated.

Effect of Bursaphelenchus xylophilus Disease on Vegetation Succession of Pinus thunbergii Forest in Shengsi Islands;

The paper gives the results of a annual investigation on the monthly major ecological conditions of the mariculture areas of Shengsi Islands from April 1990 to March 1991.