Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53186#.VLcb1cnQrzE Author(s)   Toshinori Tabata 1* , Kazuaki Hiramatsu 2 , Masayoshi Harada 2   Affiliation(s) 1 Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan . 2 Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan . ABSTRACT The aim of this study is to investigate the condition of the Ariake Sea, Japan, which has been suffering from severe environmental issues for the past few decades. Water quality data have been generated from several points in this area for over 30 years by the Fukuoka, Saga, Kumamoto, and Nagasaki prefectures. In order to understand the characteristics of this sea, principal component analysis (PCA) was utilized using 11 water quality parameters; transparency, temperature, salinity, dissolve...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52715#.VKH_0cCAM4 Author(s)     Cira Souza Pitombo , Monique Martins Gomes Affiliation(s) Department of Transportation Engineering, University of São Paulo, São Carlos, Brazil . ABSTRACT The main objective of this study is to analyze work travel-related behavior through a set of variables relative to socio-economic class, urban environment and travel characteristics. The Principal Component Analysis was applied in a sample consisting of workers of the S ã o Paulo Metropolitan Area, based on the origin-destination home interview survey, carried out in 1997, in order to: 1) examine the interdependence between travel ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=49185#.VJJuo8nQrzE Author(s)   Guicheng Shen * , Weiying Jia Affiliation(s) School of Information, Beijing Wuzi University, Beijing, China . ABSTRACT This paper studies financial crisis of listed companies in China Manufacture Industry, and selects 181 companies with financial crisis and 181 normal companies as its research samples, and its research is based on financial indexes three years before the financial crisis happens. Firstly the method of principle component analysis is used to abstract useful information from the training data. Secondly a prediction model of financial crisis is constructed with the method of Support V...

Read full paper at： http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50973#.VFHKpVfHRK0 Author(s) Jianfei Leng 1,2 , Qun Zhang 2 , Pei Tang 2 Affiliation(s) 1 School of Management, Fudan University, Shanghai, China . 2 Business School, Hohai University, Jiangsu, China . ABSTRACT This paper analyzes the function of the transportation, energy supply, water supply, telecommunications, environmental protection and other infrastructure factors on private investment, and takes the city of Nanjing as an example for the empirical analysis. Based on data from 1992 to 2011 for factor analysis, we conclude that infrastructure has promoted to private investment and that the level of infrastructure has bec...