1. Department of Mechanical
Engineering, Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
2. Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
3. DUBBLE CRG/ESRF, Netherlands Organization for Scientific Research (NWO), c/o ESRF
BP 220, F-38043, Grenoble Cedex, France