Why are Raman spectra peak-fited with Lorentzian peaks?

When I read literature about peak fitting of Raman spectra of semi-conductor, the authors always use Lorentzian peak profiles. Is there a particular reason for using Lorentzian peaks?

12 November 2019 5,991 2 View

What is the optimal amount of organic matter in agricultural soil ?

The organic matter content in the soil is very important when it comes to soil bacteria viability. some studies recommend having an average of 20% of organic matter in soil so that soil bacteria...

14 August 2019 5,698 16 View

How can I analyse XRD data?

XRD operator provide me only peak lists: 2 theta values, FWHM and d-values. Could anyone suggest me the way of analysis these results?

11 December 2018 6,739 15 View

How seed and pod nanoparticles of moringa oleifera contribute to water purification?

after treatment water by seed and pod nanoparticles of moringa oleifera the water become purify so what reaction happened between them to get this result

11 December 2018 3,636 2 View

Please tell me how to calculate Crystal Size and intensity of peak using XRD Data?

I have the following data from XRD of my nanoparticles. kindly tell me how to calculate size/dia of these particles:

11 December 2018 759 7 View

How seed and pod nanoparticles of moringa oleifera contribute to water purification?

after treatment water by seed and pod nanoparticles of moringa oleifera the water become purify so what reaction happened between them to get this result

30 November 2018 539 2 View

How can I analyse XRD data?

XRD operator provide me only peak lists: 2 theta values, FWHM and d-values. Could anyone suggest me the way of analysis these results?

30 November 2018 3,570 12 View

How to interpret my FTIR spectrum? Is there any online software available to interpret the spectrum?

I want to know the exact functional groups for my FTIR Spectrum

10 November 2018 5,712 5 View

Why do the letter "Q" symbolize stream discharge?

Why do we usually use the letter "Q" to symbolize stream discharge? is it used in other sciences such as thermodynamics or fluid dynamics ... ? thank you.

25 October 2017 7,007 11 View

What is the simplest and easiest method used to determine the linear refractive index (n0) of solution (liquid)?

09 October 2016 2,452 6 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

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View