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This work investigates the effect of an insoluble surfactant on the gravity-driven flow of a liquid film down a vertical flexible wall. The paper builds upon previous work [Matar et al., Phys Rev E 76(5):056301, 2007; Sisoev et al., Chem Eng Sci 65(2):950–961, 2010] to include the Marangoni effect attributable to the gradient of surfactant concentration on a free surface. Here we employ an integral...
C4F8-based, inductively coupled plasma (ICP) combined with dual frequency capacitively coupled plasma (DFCCP) was used to etch 6H-SiC substrates for the synthesis of few-layer graphene-on-insulator (FLGOI) films. X-ray photoelectron spectroscopy and atomic force microscopy were extensively used to characterize the quality of the FLG surface. The Raman spectroscopy studies were useful in confirming...
A self-designed helicon wave plasma (HWP) source with an internal "right-hand" helical antenna driven by a 13.56MHz radio-frequency (RF) source is investigated for its possible use for processing wall material in future magnetic fusion devices. The plasma beam is ejected into a larger diffusion chamber, where the ion energy distribution and electron energy distribution are measured by commercial...
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