Can I patent a model used for chemical process based on previous models but with major modifications ?

Is it possible to patent a mathematical (with algorithm ) model used for variables calculation of a chemical process, knowing that there are different models patented for the same chemical process...

10 November 2019 7,867 8 View

Solving simultaneous differential equations using Runge-Kutta fourth order on Python?

I'm trying to solve two simultaneous differential equations using Runge-Kutta fourth order on Python, the equations are as follows: d(f(t))/dt=H(f(t),t) d(g(t))/dt=K(g(t),f(t),(f(t=0)) f & g...

11 December 2018 9,020 4 View

Is it possible to ask the organizers of conference not publish my paper in the proceeding even if it is accepted ?

Is it possible to send an abstract and paper to a conference, and even they are accepted, ask them not to publish the paper in any proceeding, because my goal is only to get feed-back, and publish...

10 November 2018 9,261 1 View

Are graphene based membrane for desalination available and affordable in the market ?

I would like to know if the membranes based on graphene or graphene oxide (which are very promising in terms of water permeability and robustness) are already available on the market of...

09 October 2018 8,016 2 View

What are the latest updates in making performant membrane (composition) for desalination by reverse osmosis ?

I would like to know what are the recent developments in the industry of making new types of membrane (composition) for the purpose of desalination by reverse osmosis. what is the best membrane...

09 October 2018 3,058 0 View

Can a review article project be used for an oral presentation ? Do you have some examples of review abstracts for conferences ?

I have gathered enough material to write a review article which I plan to submit in the upcoming months. Can I use what I have gahered so far to submit for a conference ?

09 October 2018 8,307 2 View

What are some of the best books treating desalination by membrane technology ?

What are some of the best books treating desalination by membrane technology ?

04 May 2018 1,957 0 View

Best software for modeling desalination using membrane technology ?

What are the most used softwares to simulate and model desalination circuits using membrane technology ?

03 April 2018 963 2 View

Hi everyone, what are the best journals in membrane technology, desalination & wastewater treatment ?

Hi everyone, what are the best journals for each of the following fields : membrane technology, desalination & wastewater treatment ?

31 December 2017 4,009 3 View

Hi everyone, I'm an engineer looking for a topic to start my thesis in the field of wastewater treatment modelling, can you give me any suggestions ?

Topic for a PhD thesis in the field of wastewater treatment modelling.

11 December 2017 7,805 7 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

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

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