No title

31 December 2018 953 3 View

Among the different types of hydrocarbons such as aromatics, aliphatics, naphtenics, etc which is more refractory to the oxidation process?

among the different types of hydrocarbons such as aromatics, aliphatics, naphtenics, etc which is more refractory to the oxidation process?

06 July 2018 6,236 8 View

What is the best method for desulphurization of heavy fuels?

among the different techniques for oil desulphurization (such as HDS, BDS, ODS, ...) which is more appropriate for heavy oil?

06 July 2018 4,242 3 View

Which of the available techniques for desulphurization of the oil is more effective?

which of the available techniques for desulphurization of the oil is more effective?

05 June 2017 2,949 10 View

What is the density of graphene oxide and alkylated graphene oxide?

i want to convert mass fraction to volume fraction. so i need density of the samples (graphene oxide and alkylated graphene oxide)

07 August 2016 9,540 2 View

Is it wrong to perform a MD simulation in canonical (NVT) ensemble using berendsen thermostat?

i performed a MD simulation in NVT ensemble using berendsen thermostat, now, one of the reviewers says that NVT ensemble is based one Nose-Hoover thermostat not berendsen I got a little confused

01 February 2016 851 11 View

Is it possible to break bonds between for example C-C or C-H atoms, Using ultrasonication?

Is it possible to break bonds between for example C-C or C-H atoms, Using ultrasonication?

31 December 2014 135 0 View

Are there any nanoparticles which can decrease the viscosity of a liquid?

Are there any nanoparticles which can decrease the viscosity of a liquid?

31 December 2014 5,264 21 View

How can we measure the size of graphene nanosheets by DLS?

10 November 2014 3,143 7 View

How can I produce a water soluble polyester resin?

I want to render a polyester resin that is water soluble. What do I have to do? I know to use some materials like ammonia and amines but I don't know the procedure.

02 March 2014 1,364 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

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

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

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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View