How does the nano fiber diameter decrease while loading of MWCNT in ABS polymer solution during electrospinning ?

I have electrospun pure ABS solution and measured the diameter and it was measured as 500s nm averagely. But surprisingly the fiber diameter decreases to 100s nm averagely while loading of MWCNT....

08 September 2018 2,628 1 View

Can we check molecular weight of the sample in Malvern Nano ZS series ?

we have light scattering instrument of Malvern Nano ZS series. I need to do a studies on change in Molecular weight of the sample. But im unable to perform it. I have seen a drop down menu in the...

05 June 2018 7,736 0 View

Unknown RI and Absorption Coeff of the material in DLS for size distribution ?

We have Malvern DLS Zetasizer instrument in our lab. I need to determine the size analysis by DLS method. I need to input the properties like RI and absorption Coeff of the material. Is there any...

09 October 2017 2,596 0 View

What are the major following steps to follow for purification of waste cooking oil for transesterification ?

I have collected some waste cooking oil from hotels and it contains lots of left over fried items and loaded with carbon (black soot). I have to use it for my research work but finding hard in...

08 September 2017 6,210 0 View

How does a layer structure material enhances in catalytic properties of the material ?

After a novel synthesis method of a compound, I have found it as layered structure when I observed in SEM. This material was not having the layer structure before synthesizing it with the novel...

07 August 2017 5,058 5 View

What makes the base catalyst reacts faster than acid catalyst during trans-estrification ?

Normally, the base catalyst complete its reactions within 1 hour where as the acid catalyst tends to finish within 2 hours during transesterification. What mechanism makes the base catalysts react...

05 June 2017 1,028 0 View

Which method is good for doping among this two methods ? 1. wet impregnation and 2. Hydrothermal or solvothermal process.

I'm trying to impregnate the nanoparticles in micron size powder. Firstly I was trying with wet impregnation method. I guess the proper doping is not happening. Will hydrothermal or solvothermal...

05 June 2017 3,766 0 View

Why does the magnetic property is losing while keeping the sample (Fe3O4) for calcination 500-900 degree Celcius?

i have synthesised magnetic material Fe3O4 by co-ppt method. Before calcination, the magnetic property was showing but after calcination above 500 degree C , the magnetic property is losing....

01 February 2017 5,302 6 View

What is the best method to coat Cerium Zirconium oxide on copper tube ?

I'm trying to coat the Cerium Zirconium oxide NPs on copper tube. I have tried brush coating and dipped coating but its not sticking on the copper tube. Any suggestion for better coating, Please...

31 December 2016 9,019 1 View

Can i get the top rated journals list with high impact factor from nano catalyst for the biodiesel transestrification process ?

31 December 2016 6,339 1 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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View