Investigation into Navel Selection for Rotor Spiining Machine Using Cotton Waste Technical paper presenting the results of an investigation of the effects of form, number of grooves, fluted insert, material, lengths of ceramic part, and grooves on the rotor, on open-end spun yarns from cotton waste fibers. Authors: Sibel Kaplan and Ozer Goktepe. | Sibel Nefa Die Seite der Bauchtänzerin informiert über Auftritte, Shows, Workshops und bietet umfangreiche Informationen und Bilder bzw. Videos. [D-38116 Braunschweig] | Kusimba, Sibel Northern Illinois University professor with research interests in prehistoric and historic African cultures. |