HYDOPHILIC POLYPROPYLENE MICROPOROUS MEMBRANE FOR USING IN A MEMBRANE BIOREACTOR SYSTEM AND OPTIMIZATION OF PREPARATION CONDITIONS BY RESPONSE SURFACE METHODOLOGY

In this study, the response surface methodology (RSM) based on the central composite design (CCD) was used to optimize nightstick twm-850xl the preparation condition of polypropylene-grafted maleic anhydride (PP-g-MA) microporous membrane by thermally-induced phase separation (TIPS) method.A mixture of dibutyl phthalate (DBP) and dioctyl phthalate

Yipeng Ding,1,* Huan Niu,1,* Hua Yang,2 Pei Sun,1 Yu Chen,3 Mengling read more Duan,1 Dongchuan Xu,1 Junxue Xu,3 Tianbo Jin2,4 1Department of Emergency, People’s Hospital of Hainan Province, Haikou, Hainan, People’s Republic of China; 2School of Life Sciences, Northwest University, Xi’an, People’s Republic of China; 3Departm

Since one of flex 4 heartworm test the most important sources of information for investors and other beneficial is dividends forecast, this study tries to find models for predicting variables effective on dividend.To do this, information from chemical companies listed in Tehran Stock Exchange during the years 2006 to 2010 are used.The independent v

One of the sources of air pollutants in the surrounding environment is the automobile emissions.Automobiles produce gaseous and particulate matters which are toxic and inflict damage to roadside plants.Roadside trees are notable for the absorption, sequestering of contaminants and the effective interceptor of airborne pollution.In view of this, the