What is the effect of reflection in FTIR spectrum?

FTIR spectrum provides the information about absorption and transmission ,but will it consider the reflection while giving this data?

02 March 2014 7,258 7 View

What is the effect of the thickness of a polymer film on its FTIR spectra?

If we take FTIR spectra for a sample with different thicknesses, what will be its effect on FTIR spectra?

02 March 2014 8,180 7 View

What might be the reason for larger activation energies (1-2 ev) measured from AC conductivity for a organic semiconductor?

What are the ranges of activation energies for electronic, ionic , proton conduction? Can anyone give some references for AC conductivity analysis of organic semiconductors?

31 December 2013 5,146 0 View

How do I explain two broad peaks observed in Z'' vs log(frequency) with respect to relaxation mechanisms in an organic polycrystalline semiconductor?

I have also observed two semicircles in Nyquist plots. How do I relate this with Z'' vs log(frequency)? What might be the origin for these two semicircles in this type of material? How is this...

31 December 2013 8,930 4 View

What is the relation between electric susceptibility and heat capacity?

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10 November 2013 8,686 2 View

How do we identify the xrd peaks of (001), (100) and (010), where planes have the same d-spacing and hence the same 2theta?

If the 2theta value is the same for some planes, how do we identify them?

09 October 2013 5,152 9 View

When does a material pocesses multiple relaxations and how to know that the systems has single relaxation or multiple relaxations?

What is the criteria for a material to have multiple relaxations?

07 August 2013 9,465 8 View

When do we chose a capacitor or CPE in an equivalent circuit model for analysing the impedance data?

How is it related to relaxation phenomenon?

07 August 2013 8,250 9 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View