Beyond Beall's list, how to identify phony versus legit journals?

Make no mistake that journals indexed in reputable databases such as Scopus can be considered legit by default. Your contribution sure whets your appetite for learning which venue should...

27 October 2020 246 5 View

How can I analyze the TGA graph to get the weight percentage of organic matter?

Dear everyone, This is the first time I analyze TGA graph of my materials including protein and cooper phosphate crystals. And I would like to measure the weight percentage/ loading percentage of...

09 September 2020 1,062 3 View

How many interviews (qualitative data) are needed to support quantitative data?

I'm doing my MA dissertation on writing strategies usage. I got 69 questionnaire response. I was wondering how many interviews I should do to support the quantitative data? Thank you

14 August 2019 8,937 7 View

Does anyone know a specific staining for lead in fish tissue samples?

I need to stain lead (Pb) in paraffin-embedded sections of fish liver. Samples were previously fixed in 10% Neutral Buffered Formalin. I am struggling to looking for a specific staining for lead...

02 May 2019 8,005 3 View

What is the dispersion of CZTS material?

Dear all, My research field related to solar cells, I am utilizing Comsol multiphysics software to simulate periodic solar cells structures. Currently, CZTS material used popularly in solar cells,...

01 November 2018 3,540 1 View

When i open the main chamber, there is water on the sputtering target, Why did this happen??

I open the main chamber of AJA sputtering machine about 3 hours. When I open the shutter, there is water on the target. I didn't touch anything about this target. Also there is an air...

27 July 2018 4,241 3 View

How to add published version to the existing preprint?

Dear colleagues, If I already added a preprint (the paper was not published), and now that paper has published. So, I want to add the published version to the preprint. I don't want to add it...

06 July 2018 8,350 26 View

Is AI intelligent enough to recognize someone defraud it?

I know there are many cases that AI of Microsoft, Google, Facebook recognize wrong: butterfly to worm etc. I have a question about this. With current technology, can AI recognize that it is being...

20 January 2018 9,007 6 View

Trypan blue assay: Determine dead cells

I am trying to carry out trypan blue assay. However, when I did the experiment, I was so confused about what is dead cell. My protocol : I cultured MDA MB 231 cell lines in plastic dishes. After...

19 July 2017 8,281 6 View

Increase the high resolution of figure

11 May 2017 6,017 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

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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 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

The procedure compute?

02 March 2021 5,204 3 View