When polymers (DRA) passes through high shear force areas like pumps and elbows that causes from turbulent flow will lose their drag reduction abilities. In this research, the effect of adding a nonionic surfactant (tween ...

The exposed Pre-Sahabi rock unit formation "M" at As Sahabi area in Sirt Basin is analyzed micro paleontologically for bryozoans. Fourteen species belonging to eleven genera of bryozoan have been identified, described ...