What is the zeta potential value of deionised or distilled water?

I am getting zeta potential value of about -30 mV for distilled water obtained from a commercial supplier. What it means? What should be the zeta potential value of distilled water? How can I...

10 October 2017 2,791 19 View

Dear all, can anybody suggest me how to seperate phytoconstituents from alcoholic extract of plant material using column chromatography

I successively extracted a plant material with different solvents, among these alcoholic extract shown best activity, for this I did GC/MS analysis. further I would like to separate the...

09 August 2017 7,760 2 View

How to calculate refractive index from Uv visible spectrum?

send the link i.e formula

11 June 2017 6,371 10 View

In Ansys Fluent , how to analyze the quantity of distilled water produced in the solar still ?

I have done analysis in Ansys Fluent for the temperature distribution only, but not for the yield of the still. Any of you please give me some useful suggestions

21 November 2016 1,911 3 View

Will the natural convection ( CFD simulation) problem within an enclosure converge thermally?.Because there is an external solar load as well?

I am solving the natural convection heat transfer problem within an enclosure with few heat generating components using Fluent.Around this enclosure,I have considered the fluid domain. To consider...

17 November 2016 6,131 5 View

How can I convert load vs time curve to load vs displacement curve?

I am doing project in crash box, Experimental result getting only load vs time curve and acceleration vs time curve. i want to get a result in load vs displacement curve and stress vs strain...

11 September 2016 1,414 3 View

Zeta potential for amine functionalized Nanoparticles?

What will be the sign of zeta potential for amine functionalized nanoparticles? The amines are neutral (not protonated). Due to the electron rich character of amine functional group shall I expect...

30 July 2016 9,866 4 View

How to calculate refractive index of small size crystal??

24 June 2016 4,039 1 View

Is the zeta potential value valid for amino acid functionalized nanoparticles?

I have modified my carbon nanoparticle surface with amino acids. Now I would have both amine and acid functionalities on the surface of my nanoparticle. The measured zeta potential value is about...

31 December 2015 6,592 10 View

Why do I observe a downregulated gene in RNA-Seq that is upregulated in qPCR?

15 November 2015 4,108 4 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

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 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