What is the problem in attached file?

I have done ORR LSV (attached file) at different RPM (400-2000) in 0.1M KOH electrolyte (PH=13) using RDE. My teacher said that it is wrong due to limiting current density. Kindly give me your...

08 September 2019 1,662 2 View

How to do Particle Size Distribution of very small particles?

I used Image j but I didn't get correct result, is there another way to calculate particle size?

05 June 2019 8,862 3 View

What is the correct way of conversion of ppm to ppb?

Please suggest me a correct method of dilution of solutions to convert ppm to ppb. Let suppose I have 0.05 mg/ml solution, it has 50 ppm and I want to convert into different ppb solutions like 50,...

04 May 2019 9,307 1 View

How I can match simulated and own XRD pattern in Origin?

Hi, I have used American Mineralogist crystal database and downloaded .cif files and then used VESTA software to simulate XRD pattern and also have jcpdf number, I want to match with my own XRD...

04 May 2019 1,468 4 View

How can a beginner learn the analysis of X-ray photoelectron spectroscopy (XPS) by himself?

Is there any literature or trilaterals?

04 May 2019 3,309 6 View

Can anyone provide me JCPDS files?

Hi, everyone, I needed JCPDS files of Pt, Cu, PtCu & Cu3Pt, if anyone have then please share with me, I will be highly thankful. File numbers are as follows: PtCu = JCPDS 48-1549 Pt = JCPDS...

04 May 2019 1,856 4 View

What does it mean pass/fail in BET result?

I did BET for my catalyst (PtCu Nano particles) when I got result, I saw this error (given in attached figure), as BET Surface area is too low, what does "fail'' mean? is it incomplete analysis or...

03 April 2019 7,043 10 View

How can a beginner learn the analysis of XRD Powder method by himself?

Is there any literature or trilaterals?

01 February 2019 4,976 12 View

What is the standard electrode potential of Hg/HgO ?

01 February 2019 4,924 3 View

How to convert a potential collected with reference to Hg/HgO to Reversible Hydrogen Electrode?

I have collected a LSV data by taking Hg/HgO as the reference electrode. But I want to convert this one to RHE. Please suggest me the required conversion equation. 0.1M KOH was taken as the...

01 February 2019 6,730 4 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

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View