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The research status of electrospining PANI based nanofiber in different fields was summarized. The application progress of PANI based nanofiber in sensor, smart wearable, supercapacitor, bio-medical, adsorption, oilwater separation and organic matter degradation were introduced. The property of electrospining PANI nanofiber and the problems in the preparation process were analyzed. The results showed that the nanofiber made of PANI by electrospinning could improve the property of PANI material. Compared with traditional PANI material, PANI nanofiber had larger specific surface area, higher surface energy and activity, and easy to bond with other atoms. In the future, PANI could be effectively combined with other materials through chemical modification, blending spining, post-treatment and other methods to expand its application range. [ABSTRACT FROM AUTHOR]

This paper summarizes determinants and mechanisms of house price movements in general situations and special characteristics in China. On the basis of recognizing the periods during which house price changes differently and classifying cities scientifically, the paper examines the factors driving house price in 35 Chinese cities during different periods from 2001 to 2015 using the panel threshold regression model. The results show that the main determinants of house price in Chinese cities have changed after 2009. Availability of financing, land finance and land restriction policy has a sizable impact on house price, meanwhile the investment role of stock market revealed. As to house prices in different kinds of cities that in category 1 and 2 consisting of first-tier cities and several popular second-tier cities are driven by land finance of local governments, land supply and availability of financing after 2009. Moreover, household income has a significant influence on house price of cities in category 3, which are relatively less developed. [ABSTRACT FROM AUTHOR]

A country's balance of payments and its structure not only reflect the development stage of balance of payments of the country, but also reflect a country's resources endowment, competitiveness and external economic openness. The research about balance of payments structure, stage evolution and its influential factors has important practical significance and academic value. Firstly, based on the traditional balance of payments stages hypothesis (BPSH), this paper analyzes the influencing factor about balance of payments stage evolution; Secondly, based on the balance of payments stages hypothesis, this paper does empirical stages classification using the data from 50 countries over 1998-2014; Lastly, based on the above, this paper does the empirical research with the method of orderly logistic regression model. The empirical results imply that the GDP per capita has a significant positive effect on the stages evolution, which is correspond with the balance of payments stages hypothesis; real effective exchange rate index has a significant negative effect on stages evolution, M2/GDP has a significant positive effect on the stages evolution, and the significance of the two variables do not appear in the existing literatures, which is an important innovation and contribution in this paper. [ABSTRACT FROM AUTHOR]