Ambika Selvaraj

4 Questions 4 Answers 0 Followers

Questions related from Ambika Selvaraj

In Waves to freq spectrum using fast Fourier transform- Wats the role of zero padding & Nyquist theorm? why not freq domain length=time domain length?

I am trying to convert random wave into number of uniform sine waves (frequency spectrum) using FFT in MATALB. My concern is to optimize the selection of the best 3-5 sine waves and create the...

07 July 2016 7,624 6 View

Is there any standard on how many number of AFM measurements have to be done on a nanoparticle <100nm to determine its surface roughness accurately?

The main objectives are to get 3D surface image of nanoparticles and to quantify its surface roughness accurately. Based on literature, RMS is the best method to calculate the surface roughness of...

06 June 2016 5,085 6 View

What are all the experiments we can conduct using DLS nanoparticle size and zetapotential analyzer?

I can access to a zetapotential analyzer combined with DLS. I want to do a novel and in-depth study on nanoparticles. Suggestions plz.

05 May 2016 1,959 1 View

Is there any free software available to construct a pourbaix diagram and phase diagram for iron and chromium?

Iron 2000mg/l, 20mg/l and 8mg/l , chromium 2mg/l

04 April 2014 6,994 8 View