the suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. a feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. physical vapor deposition (pvd) and pulsed plasma-enhanced chemical vapor deposition (pecvd), naturally, form asymmetric na...

In this study, polyethersulfone based nanofiltration membranes were modified by air plasma generated through dielectric barrier discharge to increase the membrane hydrophilicity aiming to improve the separation and antifouling characteristics. The effect of plasma time on the physico-chemical and separation properties of membrane was investigated. The PES nanofiltration membranes were fabricate...

normal 0 false false false en-us x-none ar-sa objective: to compare the effect of betamethasonemethasone (betamethasone) and dexamethasonemethasone (dexamethasone) on maternal white blood cell (wbc) and differential count, erythrocyte sedimentation rate (esr), apgar score, maternal and fetal plasma glucose and length of admission to delivery , gestational age at delivery in women at risk of pre...

over the past decade, many applications were intended for filtration by membrane technology especially the thin film composite (tfc) membranes. in advanced developments of thin film membranes, an attempt was made to spread a new generation of membranes called thin film nano composite (tfn) membranes. however, in the last generation of tfns, an ultrathin selective film of nanoparticles is coated...

Over the past decade, many applications were intended for filtration by membrane technology especially the thin film composite (TFC) membranes. In advanced developments of thin film membranes, an attempt was made to spread a new generation of membranes called thin film nano composite (TFN) membranes. However, in the last generation of TFNs, an ultrathin selective film of nanoparticles is coated...

Nuclear membranes and plasma membranes isolated from mature hen erythrocytes differ widely in their phospholipid, cholesterol, and cholesterol ester composition. The plasma membranes contain relatively high amounts of sphingomyelin and cholesterol, as is known for plasma membranes from other cell types. The molar ratios of cholesterol to phospholipid are 1.04 for plasma membranes and 0.42 for n...