noncatalytic and nonoxidative conversion of methane in a dielectric barrier discharge (dbd) reactor is examined at different temperatures, gas residence times and input powers. in addition, the ratio of methane to helium as a diluant, is changed in the range of 0.6 to 1.8. results show significant synergetic effects of plasma, temperature and helium on the methane conversion and c2+ selectiviti...

Noncatalytic and nonoxidative conversion of methane in a dielectric barrier discharge (DBD) reactor is examined at different temperatures, gas residence times and input powers. In addition, the ratio of methane to helium as a diluant, is changed in the range of 0.6 to 1.8. Results show significant synergetic effects of plasma, temperature and helium on the methane conversion and C2+</s...

JULY/AUGUST 2011 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 29 H ydrogels, which mimic living tissue more than any other synthetic biomaterial because of their high water content and tensile strength, have numerous clinical applications in ophthalmology. Their soft, rubbery consistency can minimize friction with surrounding cells and tissue,1 and their degree of flexibility is similar to the ey...

— When the composition of a fluid isotropic solution is altered so that it approaches a liquid crystal phase boundary a marked increase is often observed in the solution viscosity. Viscoelastic properties can occur also, and this suggests that some long range order or network is present in the system. From the line broadening observed in high-resolution NMR spectra [a, b], we have recently demo...