How can I explain that the residual stress can shift some xrd peaks in one direction, and other peaks in the opposite direction for the same sample?

This is may be due to the need to balance stress at grain boundaries, and satisfy constraints on the strain tensor (for example a tensile stress along one direction must be balanced by a...

07 August 2015 1,891 8 View

How do you choose between two doctors ... first made 100 surgeries and failed with 10 ... the second made 10 and failed with only 1?

If we treat the problem mathematically, then 10/100 = 1/10 but if we want to make a decision related to life, what would we choose?

07 August 2015 8,726 1 View

Why the energy gap of CZTS thin films deposited by spray pyrolysis is higher than the reported values?

The reported values of energy gap of CZTS thin films are in the range 1.4-1.5 eV, however, my spray pyrolysis deposited CZTS thin films have more than 2 eV energy gap. What are the possible...

05 June 2015 5,648 9 View

Why the most probable energy of molecule is not the energy of a molecule moving at the most probable speed?

In Classical gas, why the most probable energy of molecule is not the energy of a molecule moving at the most probable speed?

03 April 2015 7,810 2 View

How many clean glass substrates need I to measure the absorbance of thin film material deposited on glass substrate?

01 February 2015 1,201 14 View

What is the mechanism of changing crystal color from transparent white color to light color after doping?

K2SO4 crystal is transparent color. The Cu doped K2SO4 crystal has light blue color. What is the exact mechanism behind this phenomenon?

01 February 2015 2,989 2 View

Why does a photon transfer all its energy to an electron (and disappears) rather than transferring part of its energy and continuing to exist?

The photon CAN transfer part of its energy to the electron and continue to exist. An example of this is Compton scattering, where a gamma ray transfers enough energy to the electron to ionize and...

11 December 2014 2,286 6 View

What is the benefit of the intrinsic layer in thin film solar cell?

The thin film solar cell is either n-i-p or p-i-n

11 December 2014 8,065 4 View

What is the difference between particle size, grain size and crystallite size?

And how can we measure each one of them?

11 December 2014 5,087 8 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View