How to perform XRD Analysis of Catalysts supported on Carbon Gas Diffusion Layer?

Hello, I'd like to analyze a copper catalyst dispersed on a carbon GDL. The thickness of the sample is about 200-250 microns. Does anyone developed a method for analyzing this kind of samples....

05 June 2019 521 3 View

What kind of software can I use for reading NXS files from a Synchrotron facility?

I have a collection of *.NXS files got from the Diamond Light Source and I need to open and see the plots of the contained data. Can anyone advice an easy to use reader software for MS...

07 August 2018 1,066 1 View

Good books for beginners in Electrocatalysis?

Hi I was looking for good books in electrocatalysis for students. Do you know some good books starting from the very basics, reporting also good worked examples and possibly exercises?

31 December 2017 169 3 View

Activity coefficient Calculation in Aspen Hysys, is it Possible to retrive this parameter for a solution?

Hi, I was curious about the possibility of retrieving the "activity coefficient" of solute in a solution by using methods like UNIFAC or NRTL. In Aspen Plus it is possible to retrieve these...

09 October 2016 1,766 6 View

XRD Analysis - Looking for a good Introduction

Hello, does anyone know a good concise basic introductory book or other kind of source or course where I can find a good introduction to XRD with applied solved problems? My field of research is...

07 August 2014 9,450 7 View

How can I determine the tortuosity factor in a porous membrane?

I use AAS membrane with the a porosity of the finer layer of 70nm as a contactor.

01 February 2014 5,321 10 View

Is it possible to determine Metal surface area on structured supports like Honeycombs or membranes?

Usually these supports are very big and inhomogeneous in terms of distributions of active particles, so, how could be measured the specific MSA (m^2/g active phase, ex platinum)? Can you advice...

01 February 2014 388 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

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

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

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'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

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