Thanos Tiliakos

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Questions related from Thanos Tiliakos

Any ideas on why an inverse opal is not showing absorption or bandgap in UV-Visual spectrum?

We have prepared a sodium silicate inverse opal, which shows an intense yellow bright light via Bragg reflection on the ambient visual. However, when we measure it in standard UV-Visual...

27 September 2019 770 7 View

Does a negative shear loss modulus make any physical sense or the measurement is invalid?

I just received a Dynamical Mechanical Analysis (DMA) data set of polymeric membranes that actually shows negative shear loss modulus (GL) at frequencies around 500Hz. Negative results were also...

06 October 2016 8,204 7 View