Situation and proposal relating to urban regenerated water recycling to industrial circulating cooling water in China;

Enhancing western development based on central cities;

Role of central cities and integration of urban and rural development;

Comprehensive appreciation for 17 central cities in Shandong Province;

Elementary introduction the function of center city in the city economic district;

Study on fuzzy recognition model of center city in area layout;

With the study on the frequent accidents and calamities in cities in China and the world, the author discusses the strategic research and the framing conception on the city calamity reduction for the year 2020 with the Chinese characteristics, which would be helpful to the state's 11th 5-year plan.

Research and Development of Social Security Alarm and Response System in Medium and Small Cities;

Study on Coordinated Development of the Medium and Small Cities in the Metropolitan Coordinating Region;

he characteristics of air environmental planning for medium and small cities in Zhujiang River Delta is analysed.

Analysis on condom use of men who have sex with men in small and medium city;

Study on high risk behaviors among MSM in small and medium city;