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) COMBAT WHITE CHOCO RASPBERRY was used to optimize 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 ph

According to EC Commission Decision 9/2001 on BSE organization protection (OJEC, 2001), feedstuffs containing fishmeal can be produced only in establishments manufacturing animal feed which do not prepare feedstuffs for ruminant animals and which are authorised for this purpose by the competent authority.This fact, leading to a reduction of the pro

This work presents an experimental study on the diffuse and localized deformation mechanisms of a high porosity (20%) Vosges sandstone (Eastern France) subjected to different stress paths in the deviatoric plane.The experimental campaign was performed using a high pressure true triaxial apparatus (TTA) in which the three principal stresses are sadd

The "oscillation hypothesis" has been proposed as a general explanation for the exceptional diversification of herbivorous insect species.The hypothesis states that speciation rates are elevated through repeated correlated changes--oscillations--in degree of host plant specificity and geographic range.The aim of this study is to test one of the pre

Materials with a low coefficient of surface radiation intensively reflect the radiant component of the heat flux and reduce heat losses through the building envelope.When designing building structures with reflective thermal insulation it is necessary to evaluate the efficiency of its application.However, at present there are no methods for calcula