What are the boundary conditions required for the Fabry-Perot Cavity 3D model in COMSOL Multiphysics?

More Keshav Samrat Modi's questions See All

Why it is required to optimize a unit cell generated from cif lattice parameters and atomic coordinates during ab initio solid state calculations?

A cif file represents a unit cell with minimum energy. My question is, in the start of any ab initio calculation for unit cell generated from the cif file, why we are advised to optimize cell...

19 January 2021 9,883 3 View

How to calculate IR and RAMAN spectra form Born charge ?

I am using crystal 17 for my solid state ab initio calculations. For some reason the program is not able to produce the Raman spectra but have generated born charges. Is there any way to produce...

11 January 2021 2,317 2 View

General Researching Question: How to begin research?

I am in the 2nd year of my undergraduate and I am very much interested in doing research in biology, chemistry and physics! I saw research opportunities under my professors but they are too...

24 December 2020 1,475 6 View

Can someone help me with the error in crystal17 output ?

I am a new user to crystal 17 (https://www.crystal.unito.it/index.php). I was trying to optimize a molecule using crystal17 but it is throwing following error: "ERROR **** INPUT3 **** n-D...

19 October 2020 5,211 2 View

Can you suggest any book to learn material simulation via density functional theory?

I am new to material simulation and I am willing to learn the theoretical aspects like what is k point mesh, how to interpret band diagram, how born charge results in IR spectra etc. I have...

29 August 2020 1,173 8 View

To find out best pair of result using GA?

Hello everyone, I have results of 100 year for a particular station. Now I have two values the first is R^2 and second in SSE for every year. Now what I want that GA should find out best result...

01 January 2020 5,722 1 View

What are the techniques to find out optimal result?

Hello everyone, I am working with 10 years of data for which I have computed 10 results. But I need to show the best result out of 10 outcomes. Can anyone suggest me any methods to find out...

29 December 2019 7,710 2 View

I have doped ZnO nanoparticles using tungsten and antimony.1% doping..their atomic radius is different so doping would be possible or not?

i have analyzed samples using XRD, i got peaks with a slight peak shift for pure and doped material. no any addition peak was found. just XRD is enough to confirm the doping?

04 December 2019 2,030 3 View

Researches Going On Use Of Bio-technology In Field Of Construction Technology?

Like: Self Healing Concert, Smoke Absorbing Facades etc..,

15 August 2019 6,207 4 View

Is there a restriction in Amplicon size for ddPCR ?

Hello , We need to do ddPCR (Eva green chemistry) for a primer pair that yields a 429 bp amplicon. It is a single band on gel. I understand that there are reason for restriction amplicon size in...

22 April 2019 2,388 3 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

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

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Is there any tutorial for comsol general projections?

Hi, im trying to make a projection in a 3d comsol model. I have a non uniforme chanel and my intention is to get the average tempreture in the y-z cross section and se the average tempreture...

02 March 2021 4,624 4 View

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

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

Why the results when using wall thickness and when using shell conduction are different in ansys fluent?

Actually, I am running cfd simulation for a heat exchanger which has two fluids one hot and other one is cold fluid. there is a solid domain between them, which I removed and instead I have used...

01 March 2021 9,537 2 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View