The effective synthesis and self-assembly of graphene oxide (GO) nanocomposites are of key importance for a broad range of nanomaterial applications. In this work, a one-step chemical strategy is presented to synthesize stable GO-polymer Langmuir composite films by interfacial thiol-ene photopolymerization at room temperature, without use of any crosslinking agents and stabilizing agents. It is...

The scenarios of achieving effective ionospheric modification are summarized and the likely physical processes engaging linear and nonlinear mode conversions through plasma inhomogeneity and nonlinearity are revealed. Parametric instabilities, which are the directly relevant processes to achieve effective heating of the ionospheric F region, are formulated and analyzed. The threshold fields and...

Related Articles Contamination effects on fixed-bias Langmuir probes Rev. Sci. Instrum. 83, 113502 (2012) Performance of a permanent-magnet helicon source at 27 and 13MHz Phys. Plasmas 19, 093509 (2012) Langmuir probe diagnostics of an atmospheric pressure, vortex–stabilized nitrogen plasma jet J. Appl. Phys. 112, 063302 (2012) Revisiting plasma hysteresis with an electronically compensated Lan...

A new hybrid sorbent in the form of round beads containing modified poly(methyl methacrylate) (PMMA) waste immobilized in pectin and crosslinked with calcium ions was prepared. A previously obtained and characterized powdered poly(methyl methacrylate)-based sorbent was used. Batch and column studies on the new material's sorption-desorption properties were performed. Two kinetic models (pseudo-...

We derive the dynamical Stark width and shift of hydrogenic spectral lines caused by Langmuir turbulence in magnetic fusion plasmas. We show that this additional broadening mechanism can dominate over the Stark broadening by the plasma microfield, theories of the latter broadening being also discussed. We also derive conditions necessary for Langmuir-wave-caused dips/depressions to occur in the...