Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

Does heat in goat affected by feeding or BCS of the animal?

Does feeding affect heat in animal? if we were to add a specific feed (with data on dry matter content), how can we correlate feeding to estrus?

10 January 2021 9,719 13 View

Why the presence of surface active compound repress the mass spectra of other compound? If the sample is itself surface active, then self repression?

I am assuming the resulting insertion/agglomeration in the presence of a surfactant or the agglomeration of surfactant may reduce the rate of ionization. The mobility of the ion may also be...

07 January 2021 987 5 View

What are various Thermal Insertion Materials?

I am working on a project of heat Sink. What are different insertion / filling materials I can use? Suggest some material about it. Thankyou

28 December 2020 728 3 View

How to prepare methylcellulose based semisolid media for cell culture?

Does anyone know how to prepare methylcellulose-based semisolid media for cell culture? Which one to use 15cp or 1500cp?

10 December 2020 5,266 2 View

What are all the criteria for the occurrence of Lunar Eclipse?

I have read the maximum limit of Lunar Eclipse is 12.2 degrees of arc (i.e. the difference in the longitude between Moon and any one node of the Moon). However on on June 5th 2020, a partial Lunar...

27 August 2020 986 5 View

What is the need to run the optimization code for multiple times? What will be the outcome for this multiple runs?

Dear all, I have to know what is the need to run the optimization code for multiple times... For example, I m implementing a new variant optimization algorithm, I am setting maximum number of...

19 July 2020 6,004 4 View

Can anyone know how to do 1D ground response analysis using COMSOL multiphysics 5.4 ?

I want to compare results of 1D ground response analysis of DEEPSOIL and COMSOL

05 July 2020 3,014 2 View

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16 June 2020 2,168 1 View

What is the current status on regulatory approvals of COVID-19 vaccines?

What is the current status on regulatory approvals of vaccines meant for COVID-19 according to USFDA, EMA, TGA, etc?

10 June 2020 7,582 5 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View

Rietveld refinement of cement paste?

I am a beginner in rietveld refinement, my samples contain numerous overlapped peaks and amorphous phases. I have few doubts related to rietveld refinement of cement paste: 1. My quantifications...

11 January 2021 8,873 6 View

When i accept card in "HighScore plus app" should i attention to cards quality (in Reitveld analysis)?

Hi I wanna use Reitveld analysis in my project but i have big question that is: Should i see quality of each card (or Not important !!?), or it is enough to check the score and scale factor of...

04 January 2021 7,750 1 View

Which analysis method in XRD analysis is the most accurate way to measure crystallite size & lattice starin? Scherrer, Williamson-Hall or Rietveld?

Here are three different ways to calculate crystallite size and lattice strain of a sample, based on XRD peaks: "Scherrer" calculation, "Williamson-Hall" or "Rietveld". Each calculation is proper...

04 January 2021 7,836 4 View

How could I fix the "negative intensities in scan data points" error in X'pert when applying Rietveld analysis?

I have faced a problem in using Xpert in Rietveld Analysis, I got the abovementioned message when trying to run Rietveld analysis. The cause of the problem is probably due to that the spectrum has...

28 November 2020 4,272 4 View

Can someone advise me to do Rietveld Refinement of the material whose Crystallographic Information Framework (CIF) file is not available?

10 October 2020 7,411 9 View

How to fix the refinement on Fullprof?

I have an XRD pattern of malachite phase in a range of 5-50 degree in 2 theta. After that, I use MID-JADE software to refine the pattern and it shows a good refinement with low R-value and GOF...

03 October 2020 3,613 8 View

What should be the Bragg R-factor value to stop at while performing the Rietveld Refinement?

How does the Bragg-R factor value effects the chi-square value?

22 September 2020 5,784 4 View

How is it possible to simulate or model particle morphology using X-ray powder diffraction?

Hello everyone! I suppose the XRD of sample LaPO4 has some anisotropic line broadening along [h00]. How could I model the shape of particle using WPPF method or something else? Diffraction...

21 September 2020 1,823 3 View