The present research focuses on the fine-grained sediments in five areas of muddy sediments in the Yellow Sea and East China Sea Shelves and the Korea Strait, which are formed since the middle Holocene at about 6kaB.

A Re-discussion on the Importation of the Silk Cotton into Korea: with a Discussion of Its Spread in the Song and Yuan Periods;

A Brief Discussion on the Commerce Development of Qing Dynasty in Korea and its Influence during Yuan Shikai being Stationed in Korea;

Ancient Korean Poetry:Its Acceptance of The Book of Songs;

Economic Reform Trend of North Korea and Role of Liaoning;

The Reasons of Economic Reformation in North Korea;

Positive Factors of North Korean Economic Reform:Analyzing from History and Reality;

Strategic thinking about Liaoning-DPRK economic and trade cooperation;

On Resources Endowment and Industry Development of DPRK in Economic Transition;

Dependent Degree Analysis on DPRK to Chinese Economy;