The Ethnic Chinese Policy under the Nguyen Regime of Nam Ha,Vietnam:With a Comparative Reference to the Le Trinh Regime of Bac Ha;

The Nguyen regime of Nam Ha, Vietnam was a special regional regime in Vietnamese history.

Water Pollution and Control Measures of Nan River in Guangyuan;

Research on Construction of Evaluation Index System of Ecological Civilization in Henan Province;

Sulfur Isotopic Compositions of the Poshan Silver Deposit and Yindongpo Gold Deposit in Tongbai County,Henan Province;

Ecological security evaluation of Cu in soils in the Huanghuai plain,Henan,China;

Relationship between extension-detachment structure and metallogeny in the district of Xiaoshan,Henan province;

On the Impact of Disasters of Yellow River on the Rural Environment in Henan Province since Modern Times;

Ore-Forming Series of Molybdenum-Lungsten-Lead-Zinc Polymetallic Mine Field: Guides to Discover Deposits in the Lengshui Area,Henan Province;

Investigation and Analysis on Current Situation of Sports and Recreation Industry Development in Universities in He Nan Province;

The Problems of the Sustainable Development of He nan Vocational Education and Countermeasures;

Study on the Development of New Rural Cooperative Medical System in He nan;

Under the condition of the high temperature of 75-85℃, an alkali surfactant polymer system ingredient with a nice performance of interfacial tension is selected according to the oil and water characteristic of Shuanghe in Henan, the heat stability and core displacement effect of this ingredient is studied.