I have a question for the professionals in optoelectronics... How we can calculate the imaginary part of n (eff)?

More Malek G. Daher's questions See All

Exporting search results papers from ResearchGate into Excel?

I am struggling to understand how I can export search results papers from ResearchGate into Excel - could you please advise as soon as possible? All the best, Zuzanna

10 December 2023 1,726 0 View

How to fit a questoinnaire to different populations?

The Science motivation questionnaire II was developed by Glynn et al. (2011) to measure university students' motivation to learn science. I want to inquire about the possibility of using the...

28 April 2023 994 3 View

Does anyone know about twin embryos in the seeds of plant species (especially in Apiaceae)?

((This refers to a situation in which double-radical emergence!)) Do you think this is a genetic disorder or a unique trait?

10 February 2022 5,261 18 View

Can we study mediation in quantitative research when conducting an intervention?

Let us suppose that we have an intervention, for example technology integration in the science classroom. Can we study what mediators could affect the results of the intervention, for example...

05 February 2022 4,286 6 View

Hi, what is the protocol of freeze drying Cell-Free Supernatant of Lactic Acid Bacteria grown on MRS agar?

previously i did freeze dried the frozen CFS using a freeze dryer, but the dried powder was sticky when rehydrated back

04 October 2021 1,505 0 View

Energy conservation and productivity relation in middle income countries: which sources should be given priority for near future?

There exist a lemma of the middle-income trap for the countries crossing the boundary of lower-income. As some of the privileges are gone so, open market tough competition hinders the national...

25 May 2021 8,464 5 View

What are the latest applications of Reinforcement Learning (RL) in the field of engineering?

I have recently started doing research on Machine Learning (ML) and Reinforcement Learning (RL) and their applications in the field of mechanical engineering. I am also interested to know more...

24 May 2021 484 15 View

How to calculate spin orbit coupling using Gaussian?

Hello Recently I’ve been using CASSCF in Gaussian 09 to calculate spin orbit coupling on H2CO as a test sample, later it will be used for large compounds. The route section is: #P...

27 September 2020 8,992 3 View

What is the best way to calculate the R-value of irregular wall section?

I am interested to calculate the R-value of an irregular wall section made with different concrete mixtures that has different thermal conductivity property

12 September 2020 3,784 3 View

“Science Has Given Man Motion, But in Exchange Has Robbed Away His Emotion"! Do you agree? Why?

These are the words of a Bengali "travel" writer in the 40s, named Binoy Mukhopadyay, but used to write under his pen-name “Jajabor”, meaning “Nomad” in Bengali.

26 July 2020 6,540 8 View

How can I find the absolute maximum value of the Lamb-Oseen vortex with a no-slip condition?

R(t) = the propagation function of the vortex, where R=sqrt(4vt + R0^2) R0 = initial radius. w0 = initial angular velocity. Rf = the radius of the boundary confining the fluid. The Lamb-Oseen...

07 July 2024 3,680 0 View

How to confirm if quantum confinement effect was occurred?

I'm making quantum well with 2 different bandgap materials, but I'm not sure quantum confinement effect was occurred because the well width is ~ 60 nm. How can I make sure that effect? Is there...

02 July 2024 8,426 1 View

Does the quantum confined effect affect the peak position of PL intensity?

The lower PL intensity for ultrathin MOF than that of bulk MOF also indicated a quantum confinement effect due to the ultrathin morphology of Cu-UMOF.

27 June 2024 4,855 0 View

Why aren't primary MHD generators with tokamak/stellarator configurations studied/researched?

Magnetohydrodynamic generators are normally used as eihter an attachment to recycle wasted heat and flow of other generators, or used to absorb the energy from rocket thrusters. However, I'm...

24 June 2024 3,949 1 View

Can anyone help me to solve this problem in Open Sees?

Hello,

02 June 2024 9,328 1 View

How to monitor surfaces current on Waveguide Problem with CST Software?

Hello, everyone! I've placed an FSS (dielectric and FSS) inside a waveguide, but I'm unable to detect surface currents on the probe inside (the distribution, as monitored by CST, is confined...

27 April 2024 8,651 0 View

How can i apply confining pressure to my model in plaxis 3D ?

During validation for my study(I am modeling a single cylindrical and tapered pile) I need a Mohr-Coulomb soil model with confining pressure. I have already modeled a Hardening soil model (using...

09 April 2024 6,282 0 View

How to extract specific data for a CFST in ABAQUS?

Dear Research Community, I am modelling a circular CFST in ABAQUS, and there are three things I want to extract: Stress-strain data of the CFST as a whole Ultimate load of the CFST Stress-strain...

23 March 2024 7,718 0 View

How to calculating the pore size of water channels in a polymer-water interface structure?

Hi All, I am simulating a water-polymer interface using GROMACS. I want to calculate the size of (e.g., pore distribution) pores in water channels. Since my system contains both the interface and...

16 March 2024 9,635 0 View

I am getting higher seismic demand in terms of displacement for FRP confined RC column as compared to RC column?

I am using concrete01 and the stress-strain parameter is calculated using Lam and Teng model for FRP confined concrete. How to correct the model so that demand for FRP retrofitted will become less.

05 March 2024 7,328 0 View