Internet financing in China has been developing rapidly in China.Recently,college students start to be one of emerging target group of internet consumer financing services.However,college students' credit has not ...Internet financing in China has been developing rapidly in China.Recently,college students start to be one of emerging target group of internet consumer financing services.However,college students' credit has not been fully taken account yet.This paper aims at contributing to making a step for solving this issue.In this paper,a credit fraud evaluation model is developed using a university' s students ' grade and campus consumption data.A logistic regression model is trained with the students' grade and daily consumption data.The features of the model with stepwise regression methods are selected.And this model achieves that the paper predicts the students' fault rate accurately.展开更多
Acquired neurological injuries initiate a pathological cascade of secondary injury processes,including inflammation,which continue for days to weeks following injury.Injury-induced neuroinflammation acts as a host def...Acquired neurological injuries initiate a pathological cascade of secondary injury processes,including inflammation,which continue for days to weeks following injury.Injury-induced neuroinflammation acts as a host defense mechanism contributing to the neutralization of the insult（removing offending factors）and restoring structure and function of the brain（establish homeostasis）.The timing of these protective functions of the immune response is vital,since chronic inflammation展开更多
The application of appropriate advanced treat- ment process in the municipal wastewater treatment plants （WWTPs） has become an important issue considering the elimination of emerging contaminants, such as pharma- ce...The application of appropriate advanced treat- ment process in the municipal wastewater treatment plants （WWTPs） has become an important issue considering the elimination of emerging contaminants, such as pharma- ceutical and personal care products （PPCPs）. In the present study, the removal of 13 PPCPs belonging to different therapeutic classes by the sequential ultraviolet （UV） and ozonation process in a full-scale WWTP in Beijing was investigated over the course of ten months. Most of the target PPCPs were effectively removed, and the median removal efficiencies of individual PPCPs, ranging from -13% to 89%, were dependent on their reaction rate constants with molecular ozone. Noticeable fluctuation in the removal efficiencies of the same PPCPs was observed in different sampling campaigns. Nevertheless, the sequential UV and ozonation process still made a significant contribution to the total elimination of most PPCPs in the full-scale WWTP, by compensating for the poor or fluctuant removal performance of PPCPs by biologic treatment process.展开更多
基金Fundamental Research Funds for the Central Universities(Tongji University)Interdisciplinary Project,China(No.0800219311)
文摘Internet financing in China has been developing rapidly in China.Recently,college students start to be one of emerging target group of internet consumer financing services.However,college students' credit has not been fully taken account yet.This paper aims at contributing to making a step for solving this issue.In this paper,a credit fraud evaluation model is developed using a university' s students ' grade and campus consumption data.A logistic regression model is trained with the students' grade and daily consumption data.The features of the model with stepwise regression methods are selected.And this model achieves that the paper predicts the students' fault rate accurately.
文摘Acquired neurological injuries initiate a pathological cascade of secondary injury processes,including inflammation,which continue for days to weeks following injury.Injury-induced neuroinflammation acts as a host defense mechanism contributing to the neutralization of the insult（removing offending factors）and restoring structure and function of the brain（establish homeostasis）.The timing of these protective functions of the immune response is vital,since chronic inflammation
文摘The application of appropriate advanced treat- ment process in the municipal wastewater treatment plants （WWTPs） has become an important issue considering the elimination of emerging contaminants, such as pharma- ceutical and personal care products （PPCPs）. In the present study, the removal of 13 PPCPs belonging to different therapeutic classes by the sequential ultraviolet （UV） and ozonation process in a full-scale WWTP in Beijing was investigated over the course of ten months. Most of the target PPCPs were effectively removed, and the median removal efficiencies of individual PPCPs, ranging from -13% to 89%, were dependent on their reaction rate constants with molecular ozone. Noticeable fluctuation in the removal efficiencies of the same PPCPs was observed in different sampling campaigns. Nevertheless, the sequential UV and ozonation process still made a significant contribution to the total elimination of most PPCPs in the full-scale WWTP, by compensating for the poor or fluctuant removal performance of PPCPs by biologic treatment process.
