How can I calculate the resistance from EIS?

I found that the perfect circuit that fits my data is R(R(Q(RQ))) and I want to calculate the Rp so I can calculate the corrosion current density using the equation icorr=B/Rp. However, I do not...

04 May 2014 370 23 View

How to dissolve sodium hyaluronate faster?

I am trying to dissolve 2.3g/l of sodium hyaluronate in phosphate buffer saline. However, it is taking me two days to dissolve. I am wondering if somebody knows a way to dissolve it faster. I...

03 April 2014 8,313 6 View

Why do we use negative potential when we want to deposit and positive potential for surface cleaning?

How can we know that the surface has been cleaned?

31 December 2013 6,790 7 View

Can I use a glass container for immersion tests for a solution with protein?

My solution has bovine serum albumin. Should I use plastic or glass container for the immersion test? Does protein adsorbs on glass?

31 December 2013 9,805 8 View

What is the passive layer composition for Co? Is it CoO? How strong is it?

With regards to CoCrMo alloy, the passive layer is mainly Cr2O3 but I would like to know what is the passive layer for Co? Is it CoO? How strong is it?

31 December 2013 5,039 3 View

Does anyone have experience with the Open circuit potential change in the same solution for the same material?

I used to run OCP for one hour but I have noticed it is not enough. Therefore, I run it for two hours. It was working perfectly and my solution has stabilized. However, for the last two...

31 December 2013 5,644 19 View

What is the difference between the oxide layer and the passive film?

Are they the same? Does there composition differ?

31 December 2013 1,346 7 View

Why is Cr the main constituent of the oxide layer of CoCrMo?

Even though Cr is not the main component of this alloy, Co is the main constituent but the passive layer is Cr2O3 mainly and Cr(OH)3.

31 December 2013 7,312 2 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

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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View