How to measure the viscosity or concentration of a polymer solution?

I need a device that can detect either viscosity or concentration of a polymer solution used in mass production, which excludes many approaches appropriate only for lab experiments. If possible, I...

09 October 2019 1,706 5 View

How to remove the papers I'm not entitled to have, by mistake?

I don't know by whose fault, I was claimed one of the authors of many papers I'm not entitled to have. I don't know how to remove those papers either. For example, how on earth do I have papers...

04 May 2019 9,894 2 View

Nobody has never found a way that is comparable or better than the Sloot Digital Coding System"?

The Sloot Digital Coding System, a lost invention, believe to be a revolutionary data coding system, which only requires 8KB of data to store a full movie! However, giving that "the principle is...

09 October 2017 927 0 View

How to characterize residual monomer content in polymer blends?

After polymerization, there are always a small amount of monomers left either in the polymer matrix or other materials that are dispersed in the polymer. This is very undesirable, as residual...

09 October 2016 8,988 8 View

Did Bertand Russel indeed said that certain branches of science existed to suppress the development in certain area?

05 June 2016 4,246 1 View

Can anybody give a list of polymers that can be dissoved in liquid crystals?

I want polymers be directly dissolved in liquid crystals (no polymerization involved). Any ideas?

04 May 2016 6,709 4 View

Anybody can help me locate this article?

I'm looking for the following article: J. Fridel, P. G. de Gennes, C. R. Acad. Sci. B268, 257 (1969). I have tried several times. Can somebody at least tell me the title of this article? (If it's...

02 March 2016 913 0 View

Does compressing smectic layer multiply defects?

Compressing solid materials multiplys instead of reducing defects? How about smectic liquid crystals?

02 March 2016 7,024 2 View

What's the current view of lack of or weak higher-order x-ray diffraciton of smectic-A?

Smectic-A has a very peculiar feature in x-ray diffraction. The higher-order x-ray diffraction is either absent or very weak. This might be easy for people who have followed the progress on this....

02 March 2016 1,913 0 View

Why can the tilt angle of smectic-C not be bigger than 45 degrees?

As far as I know, the largest tilt angle achieved is about 30 degrees. Consider two rode-like neighboring molecules, with no-uniform charge distribution (of course, overall the molecules are...

01 February 2016 5,853 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

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

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