How to estimate the glass forming region throgh the XRD data?

Glasses with certain composition of different chemical compounds forms in a specific range only. Beyond the range it will be difficult to form the glass in normal melt quenching. is there any...

10 November 2014 9,680 4 View

What is meant by Negative absorbance?

09 October 2014 2,921 19 View

How can I find the absorption edge in the UV-Vis absorption spectrum?

It is difficult to find the exact absorption edge for my UV-Vis spectrum as it is having wide hump in the UV region. Then how to estimate the absorption edge?

07 August 2014 3,217 4 View

Is it possible to calculate the refractive index of glasses by UV-VIS spectrum?

Calculation of energy band gap or optical obsorption from UV-Vis spectrum is possible. Is there any relation between these parameters with refractive index for glass samples? My glass samples are...

06 July 2014 7,797 6 View

Does the thickness of the materials effects the nonlinear refractive index for the nonlinear optical materials?

The velocity of light of particular wavelength may vary as it is going deep in the nonlinear optical materials. If it is like that what is the reason for that?

06 July 2014 3,602 10 View

Can anyone distinguish the Z-scan and I-scan techniques for the characterization of nonlinear optical materials?

Recently some papers reported with I-scan to evaluate the nonlinearity of the materials. What are the advancements through the I-scan technique?

04 May 2014 8,453 2 View

Why do the glasses possess both direct band gap and indirect band gap?

What is the phenomena for the glasses to possess both direct and indirect band gaps?

03 April 2014 988 4 View

Is there any method to find the refractive index of opaque glass samples?

During synthesis of glasses I get samples with opaque structure. I need to measure the refractive index of that samples in visible or infrared region. What is the method that can be used to...

03 April 2014 1,869 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 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

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 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